/*
-** License Applicability. Except to the extent portions of this file are
-** made subject to an alternative license as permitted in the SGI Free
-** Software License B, Version 1.1 (the "License"), the contents of this
-** file are subject only to the provisions of the License. You may not use
-** this file except in compliance with the License. You may obtain a copy
-** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
-** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
-**
-** http://oss.sgi.com/projects/FreeB
-**
-** Note that, as provided in the License, the Software is distributed on an
-** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
-** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
-** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
-** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
-**
-** Original Code. The Original Code is: OpenGL Sample Implementation,
-** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
-** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
-** Copyright in any portions created by third parties is as indicated
-** elsewhere herein. All Rights Reserved.
-**
-** Additional Notice Provisions: The application programming interfaces
-** established by SGI in conjunction with the Original Code are The
-** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
-** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
-** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
-** Window System(R) (Version 1.3), released October 19, 1998. This software
-** was created using the OpenGL(R) version 1.2.1 Sample Implementation
-** published by SGI, but has not been independently verified as being
-** compliant with the OpenGL(R) version 1.2.1 Specification.
-**
-** $Date: 2002/11/01 23:45:31 $ $Revision: 1.3 $
-** $Header: /home/krh/git/sync/mesa-cvs-repo/Mesa/src/glu/sgi/libutil/mipmap.c,v 1.3 2002/11/01 23:45:31 brianp Exp $
-*/
+ * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
+ * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice including the dates of first publication and
+ * either this permission notice or a reference to
+ * http://oss.sgi.com/projects/FreeB/
+ * shall be included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+ * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Except as contained in this notice, the name of Silicon Graphics, Inc.
+ * shall not be used in advertising or otherwise to promote the sale, use or
+ * other dealings in this Software without prior written authorization from
+ * Silicon Graphics, Inc.
+ */
#include "gluos.h"
#include <assert.h>
#include <string.h>
#include <limits.h> /* UINT_MAX */
#include <math.h>
-#include "gluint.h"
typedef union {
unsigned char ub[4];
float f;
} Type_Widget;
-/* Pixel storage modes */
+/* Pixel storage modes */
typedef struct {
GLint pack_alignment;
- GLint pack_row_length;
- GLint pack_skip_rows;
+ GLint pack_row_length;
+ GLint pack_skip_rows;
GLint pack_skip_pixels;
GLint pack_lsb_first;
GLint pack_swap_bytes;
GLint unpack_image_height;
} PixelStorageModes;
-static int gluBuild1DMipmapLevelsCore(GLenum, GLint,
+static int gluBuild1DMipmapLevelsCore(GLenum, GLint,
GLsizei,
GLsizei,
- GLenum, GLenum, GLint, GLint, GLint,
+ GLenum, GLenum, GLint, GLint, GLint,
const void *);
-static int gluBuild2DMipmapLevelsCore(GLenum, GLint,
- GLsizei, GLsizei,
- GLsizei, GLsizei,
- GLenum, GLenum, GLint, GLint, GLint,
+static int gluBuild2DMipmapLevelsCore(GLenum, GLint,
+ GLsizei, GLsizei,
+ GLsizei, GLsizei,
+ GLenum, GLenum, GLint, GLint, GLint,
const void *);
-static int gluBuild3DMipmapLevelsCore(GLenum, GLint,
+static int gluBuild3DMipmapLevelsCore(GLenum, GLint,
GLsizei, GLsizei, GLsizei,
GLsizei, GLsizei, GLsizei,
- GLenum, GLenum, GLint, GLint, GLint,
+ GLenum, GLenum, GLint, GLint, GLint,
const void *);
/*
static GLint is_index(GLenum format);
static GLint image_size(GLint width, GLint height, GLenum format, GLenum type);
static void fill_image(const PixelStorageModes *,
- GLint width, GLint height, GLenum format,
- GLenum type, GLboolean index_format,
+ GLint width, GLint height, GLenum format,
+ GLenum type, GLboolean index_format,
const void *userdata, GLushort *newimage);
static void empty_image(const PixelStorageModes *,
- GLint width, GLint height, GLenum format,
- GLenum type, GLboolean index_format,
+ GLint width, GLint height, GLenum format,
+ GLenum type, GLboolean index_format,
const GLushort *oldimage, void *userdata);
-static void scale_internal(GLint components, GLint widthin, GLint heightin,
- const GLushort *datain,
- GLint widthout, GLint heightout,
+static void scale_internal(GLint components, GLint widthin, GLint heightin,
+ const GLushort *datain,
+ GLint widthout, GLint heightout,
GLushort *dataout);
-static void scale_internal_ubyte(GLint components, GLint widthin,
- GLint heightin, const GLubyte *datain,
- GLint widthout, GLint heightout,
+static void scale_internal_ubyte(GLint components, GLint widthin,
+ GLint heightin, const GLubyte *datain,
+ GLint widthout, GLint heightout,
GLubyte *dataout, GLint element_size,
GLint ysize, GLint group_size);
static void scale_internal_byte(GLint components, GLint widthin,
- GLint heightin, const GLbyte *datain,
- GLint widthout, GLint heightout,
- GLbyte *dataout, GLint element_size,
- GLint ysize, GLint group_size);
+ GLint heightin, const GLbyte *datain,
+ GLint widthout, GLint heightout,
+ GLbyte *dataout, GLint element_size,
+ GLint ysize, GLint group_size);
static void scale_internal_ushort(GLint components, GLint widthin,
- GLint heightin, const GLushort *datain,
- GLint widthout, GLint heightout,
- GLushort *dataout, GLint element_size,
- GLint ysize, GLint group_size,
- GLint myswap_bytes);
+ GLint heightin, const GLushort *datain,
+ GLint widthout, GLint heightout,
+ GLushort *dataout, GLint element_size,
+ GLint ysize, GLint group_size,
+ GLint myswap_bytes);
static void scale_internal_short(GLint components, GLint widthin,
- GLint heightin, const GLshort *datain,
- GLint widthout, GLint heightout,
- GLshort *dataout, GLint element_size,
- GLint ysize, GLint group_size,
- GLint myswap_bytes);
+ GLint heightin, const GLshort *datain,
+ GLint widthout, GLint heightout,
+ GLshort *dataout, GLint element_size,
+ GLint ysize, GLint group_size,
+ GLint myswap_bytes);
static void scale_internal_uint(GLint components, GLint widthin,
- GLint heightin, const GLuint *datain,
- GLint widthout, GLint heightout,
- GLuint *dataout, GLint element_size,
- GLint ysize, GLint group_size,
- GLint myswap_bytes);
+ GLint heightin, const GLuint *datain,
+ GLint widthout, GLint heightout,
+ GLuint *dataout, GLint element_size,
+ GLint ysize, GLint group_size,
+ GLint myswap_bytes);
static void scale_internal_int(GLint components, GLint widthin,
- GLint heightin, const GLint *datain,
- GLint widthout, GLint heightout,
- GLint *dataout, GLint element_size,
- GLint ysize, GLint group_size,
- GLint myswap_bytes);
+ GLint heightin, const GLint *datain,
+ GLint widthout, GLint heightout,
+ GLint *dataout, GLint element_size,
+ GLint ysize, GLint group_size,
+ GLint myswap_bytes);
static void scale_internal_float(GLint components, GLint widthin,
- GLint heightin, const GLfloat *datain,
- GLint widthout, GLint heightout,
- GLfloat *dataout, GLint element_size,
- GLint ysize, GLint group_size,
- GLint myswap_bytes);
+ GLint heightin, const GLfloat *datain,
+ GLint widthout, GLint heightout,
+ GLfloat *dataout, GLint element_size,
+ GLint ysize, GLint group_size,
+ GLint myswap_bytes);
static int checkMipmapArgs(GLenum, GLenum, GLenum);
static GLboolean legalFormat(GLenum);
static void halve1Dimage_ubyte(GLint, GLuint, GLuint,const GLubyte *,
GLubyte *, GLint, GLint, GLint);
-static void halve1Dimage_byte(GLint, GLuint, GLuint,const GLbyte *, GLbyte *,
+static void halve1Dimage_byte(GLint, GLuint, GLuint,const GLbyte *, GLbyte *,
GLint, GLint, GLint);
static void halve1Dimage_ushort(GLint, GLuint, GLuint, const GLushort *,
GLushort *, GLint, GLint, GLint, GLint);
-static void halve1Dimage_short(GLint, GLuint, GLuint,const GLshort *, GLshort *,
+static void halve1Dimage_short(GLint, GLuint, GLuint,const GLshort *, GLshort *,
GLint, GLint, GLint, GLint);
-static void halve1Dimage_uint(GLint, GLuint, GLuint, const GLuint *, GLuint *,
+static void halve1Dimage_uint(GLint, GLuint, GLuint, const GLuint *, GLuint *,
GLint, GLint, GLint, GLint);
-static void halve1Dimage_int(GLint, GLuint, GLuint, const GLint *, GLint *,
+static void halve1Dimage_int(GLint, GLuint, GLuint, const GLint *, GLint *,
GLint, GLint, GLint, GLint);
-static void halve1Dimage_float(GLint, GLuint, GLuint, const GLfloat *, GLfloat *,
+static void halve1Dimage_float(GLint, GLuint, GLuint, const GLfloat *, GLfloat *,
GLint, GLint, GLint, GLint);
static GLint imageSize3D(GLint, GLint, GLint, GLenum,GLenum);
-static void fillImage3D(const PixelStorageModes *, GLint, GLint, GLint,GLenum,
+static void fillImage3D(const PixelStorageModes *, GLint, GLint, GLint,GLenum,
GLenum, GLboolean, const void *, GLushort *);
static void emptyImage3D(const PixelStorageModes *,
- GLint, GLint, GLint, GLenum,
- GLenum, GLboolean,
+ GLint, GLint, GLint, GLenum,
+ GLenum, GLboolean,
const GLushort *, void *);
-static void scaleInternal3D(GLint, GLint, GLint, GLint, const GLushort *,
+static void scaleInternal3D(GLint, GLint, GLint, GLint, const GLushort *,
GLint, GLint, GLint, GLushort *);
static void retrieveStoreModes(PixelStorageModes *psm)
}
}
-/*
-** Compute the nearest power of 2 number. This algorithm is a little
+/*
+** Compute the nearest power of 2 number. This algorithm is a little
** strange, but it works quite well.
*/
static int nearestPower(GLuint value)
#define __GLU_SWAP_4_BYTES(s)\
(GLuint)(((GLuint)((const GLubyte*)(s))[3])<<24 | \
- ((GLuint)((const GLubyte*)(s))[2])<<16 | \
- ((GLuint)((const GLubyte*)(s))[1])<<8 | ((const GLubyte*)(s))[0])
+ ((GLuint)((const GLubyte*)(s))[2])<<16 | \
+ ((GLuint)((const GLubyte*)(s))[1])<<8 | ((const GLubyte*)(s))[0])
-static void halveImage(GLint components, GLuint width, GLuint height,
+static void halveImage(GLint components, GLuint width, GLuint height,
const GLushort *datain, GLushort *dataout)
{
int i, j, k;
for (i = 0; i < newheight; i++) {
for (j = 0; j < newwidth; j++) {
for (k = 0; k < components; k++) {
- s[0] = (t[0] + t[components] + t[delta] +
+ s[0] = (t[0] + t[components] + t[delta] +
t[delta+components] + 2) / 4;
s++; t++;
}
}
}
-static void halveImage_ubyte(GLint components, GLuint width, GLuint height,
+static void halveImage_ubyte(GLint components, GLuint width, GLuint height,
const GLubyte *datain, GLubyte *dataout,
GLint element_size, GLint ysize, GLint group_size)
{
int i, j, k;
int newwidth, newheight;
+ int padBytes;
GLubyte *s;
const char *t;
newwidth = width / 2;
newheight = height / 2;
+ padBytes = ysize - (width*group_size);
s = dataout;
t = (const char *)datain;
for (i = 0; i < newheight; i++) {
for (j = 0; j < newwidth; j++) {
for (k = 0; k < components; k++) {
- s[0] = (*(const GLubyte*)t +
+ s[0] = (*(const GLubyte*)t +
*(const GLubyte*)(t+group_size) +
- *(const GLubyte*)(t+ysize) +
- *(const GLubyte*)(t+ysize+group_size) + 2) / 4;
- s++; t += element_size;
+ *(const GLubyte*)(t+ysize) +
+ *(const GLubyte*)(t+ysize+group_size) + 2) / 4;
+ s++; t += element_size;
}
t += group_size;
}
+ t += padBytes;
t += ysize;
}
}
/* */
-static void halve1Dimage_ubyte(GLint components, GLuint width, GLuint height,
- const GLubyte *dataIn, GLubyte *dataOut,
- GLint element_size, GLint ysize,
+static void halve1Dimage_ubyte(GLint components, GLuint width, GLuint height,
+ const GLubyte *dataIn, GLubyte *dataOut,
+ GLint element_size, GLint ysize,
GLint group_size)
{
GLint halfWidth= width / 2;
*(const GLubyte*)(src+group_size)) / 2;
src+= element_size;
- dest++;
- }
+ dest++;
+ }
src+= group_size; /* skip to next 2 */
}
{
- int padBytes= ysize - (width*group_size);
+ int padBytes= ysize - (width*group_size);
src+= padBytes; /* for assertion only */
}
}
else if (width == 1) { /* 1 column */
int padBytes= ysize - (width * group_size);
assert(height != 1); /* widthxheight can't be 1x1 */
- halfWidth= 1;
+ halfWidth= 1;
/* one vertical column with possible pad bytes per row */
/* average two at a time */
src+= element_size;
dest++;
- }
+ }
src+= padBytes; /* add pad bytes, if any, to get to end to row */
src+= ysize;
}
[components * element_size * halfWidth * halfHeight]);
} /* halve1Dimage_ubyte() */
-static void halveImage_byte(GLint components, GLuint width, GLuint height,
+static void halveImage_byte(GLint components, GLuint width, GLuint height,
const GLbyte *datain, GLbyte *dataout,
GLint element_size,
GLint ysize, GLint group_size)
{
int i, j, k;
int newwidth, newheight;
+ int padBytes;
GLbyte *s;
const char *t;
newwidth = width / 2;
newheight = height / 2;
+ padBytes = ysize - (width*group_size);
s = dataout;
t = (const char *)datain;
for (i = 0; i < newheight; i++) {
for (j = 0; j < newwidth; j++) {
for (k = 0; k < components; k++) {
- s[0] = (*(const GLbyte*)t +
+ s[0] = (*(const GLbyte*)t +
*(const GLbyte*)(t+group_size) +
- *(const GLbyte*)(t+ysize) +
- *(const GLbyte*)(t+ysize+group_size) + 2) / 4;
- s++; t += element_size;
+ *(const GLbyte*)(t+ysize) +
+ *(const GLbyte*)(t+ysize+group_size) + 2) / 4;
+ s++; t += element_size;
}
t += group_size;
}
+ t += padBytes;
t += ysize;
}
}
-static void halve1Dimage_byte(GLint components, GLuint width, GLuint height,
- const GLbyte *dataIn, GLbyte *dataOut,
+static void halve1Dimage_byte(GLint components, GLuint width, GLuint height,
+ const GLbyte *dataIn, GLbyte *dataOut,
GLint element_size,GLint ysize, GLint group_size)
{
GLint halfWidth= width / 2;
*dest= (*(const GLbyte*)src + *(const GLbyte*)(src+group_size)) / 2;
src+= element_size;
- dest++;
- }
+ dest++;
+ }
src+= group_size; /* skip to next 2 */
}
{
- int padBytes= ysize - (width*group_size);
+ int padBytes= ysize - (width*group_size);
src+= padBytes; /* for assertion only */
}
}
else if (width == 1) { /* 1 column */
int padBytes= ysize - (width * group_size);
assert(height != 1); /* widthxheight can't be 1x1 */
- halfWidth= 1;
+ halfWidth= 1;
/* one vertical column with possible pad bytes per row */
/* average two at a time */
src+= element_size;
dest++;
- }
+ }
src+= padBytes; /* add pad bytes, if any, to get to end to row */
src+= ysize;
}
[components * element_size * halfWidth * halfHeight]);
} /* halve1Dimage_byte() */
-static void halveImage_ushort(GLint components, GLuint width, GLuint height,
- const GLushort *datain, GLushort *dataout,
+static void halveImage_ushort(GLint components, GLuint width, GLuint height,
+ const GLushort *datain, GLushort *dataout,
GLint element_size, GLint ysize, GLint group_size,
GLint myswap_bytes)
{
int i, j, k;
int newwidth, newheight;
+ int padBytes;
GLushort *s;
const char *t;
newwidth = width / 2;
newheight = height / 2;
+ padBytes = ysize - (width*group_size);
s = dataout;
t = (const char *)datain;
for (i = 0; i < newheight; i++) {
for (j = 0; j < newwidth; j++) {
for (k = 0; k < components; k++) {
- s[0] = (*(const GLushort*)t +
- *(const GLushort*)(t+group_size) +
- *(const GLushort*)(t+ysize) +
+ s[0] = (*(const GLushort*)t +
+ *(const GLushort*)(t+group_size) +
+ *(const GLushort*)(t+ysize) +
*(const GLushort*)(t+ysize+group_size) + 2) / 4;
s++; t += element_size;
}
t += group_size;
}
+ t += padBytes;
t += ysize;
}
else
for (i = 0; i < newheight; i++) {
- for (j = 0; j < newwidth; j++) {
- for (k = 0; k < components; k++) {
+ for (j = 0; j < newwidth; j++) {
+ for (k = 0; k < components; k++) {
s[0] = (__GLU_SWAP_2_BYTES(t) +
__GLU_SWAP_2_BYTES(t+group_size) +
__GLU_SWAP_2_BYTES(t+ysize) +
__GLU_SWAP_2_BYTES(t+ysize+group_size)+ 2)/4;
- s++; t += element_size;
+ s++; t += element_size;
}
t += group_size;
- }
- t += ysize;
+ }
+ t += padBytes;
+ t += ysize;
}
}
-static void halve1Dimage_ushort(GLint components, GLuint width, GLuint height,
- const GLushort *dataIn, GLushort *dataOut,
- GLint element_size, GLint ysize,
+static void halve1Dimage_ushort(GLint components, GLuint width, GLuint height,
+ const GLushort *dataIn, GLushort *dataOut,
+ GLint element_size, GLint ysize,
GLint group_size, GLint myswap_bytes)
{
GLint halfWidth= width / 2;
*dest= (ushort[0] + ushort[1]) / 2;
src+= element_size;
- dest++;
- }
+ dest++;
+ }
src+= group_size; /* skip to next 2 */
}
{
- int padBytes= ysize - (width*group_size);
+ int padBytes= ysize - (width*group_size);
src+= padBytes; /* for assertion only */
}
}
else if (width == 1) { /* 1 column */
int padBytes= ysize - (width * group_size);
assert(height != 1); /* widthxheight can't be 1x1 */
- halfWidth= 1;
+ halfWidth= 1;
/* one vertical column with possible pad bytes per row */
/* average two at a time */
src+= element_size;
dest++;
- }
+ }
src+= padBytes; /* add pad bytes, if any, to get to end to row */
src+= ysize;
}
} /* halve1Dimage_ushort() */
-static void halveImage_short(GLint components, GLuint width, GLuint height,
+static void halveImage_short(GLint components, GLuint width, GLuint height,
const GLshort *datain, GLshort *dataout,
GLint element_size, GLint ysize, GLint group_size,
GLint myswap_bytes)
{
int i, j, k;
int newwidth, newheight;
+ int padBytes;
GLshort *s;
const char *t;
newwidth = width / 2;
newheight = height / 2;
+ padBytes = ysize - (width*group_size);
s = dataout;
t = (const char *)datain;
for (i = 0; i < newheight; i++) {
for (j = 0; j < newwidth; j++) {
for (k = 0; k < components; k++) {
- s[0] = (*(const GLshort*)t +
- *(const GLshort*)(t+group_size) +
- *(const GLshort*)(t+ysize) +
+ s[0] = (*(const GLshort*)t +
+ *(const GLshort*)(t+group_size) +
+ *(const GLshort*)(t+ysize) +
*(const GLshort*)(t+ysize+group_size) + 2) / 4;
s++; t += element_size;
}
t += group_size;
}
+ t += padBytes;
t += ysize;
}
else
for (i = 0; i < newheight; i++) {
- for (j = 0; j < newwidth; j++) {
- for (k = 0; k < components; k++) {
+ for (j = 0; j < newwidth; j++) {
+ for (k = 0; k < components; k++) {
GLushort b;
GLint buf;
- b = __GLU_SWAP_2_BYTES(t);
+ b = __GLU_SWAP_2_BYTES(t);
buf = *(const GLshort*)&b;
- b = __GLU_SWAP_2_BYTES(t+group_size);
+ b = __GLU_SWAP_2_BYTES(t+group_size);
buf += *(const GLshort*)&b;
- b = __GLU_SWAP_2_BYTES(t+ysize);
+ b = __GLU_SWAP_2_BYTES(t+ysize);
buf += *(const GLshort*)&b;
- b = __GLU_SWAP_2_BYTES(t+ysize+group_size);
+ b = __GLU_SWAP_2_BYTES(t+ysize+group_size);
buf += *(const GLshort*)&b;
s[0] = (GLshort)((buf+2)/4);
- s++; t += element_size;
+ s++; t += element_size;
}
t += group_size;
- }
- t += ysize;
+ }
+ t += padBytes;
+ t += ysize;
}
}
-static void halve1Dimage_short(GLint components, GLuint width, GLuint height,
- const GLshort *dataIn, GLshort *dataOut,
- GLint element_size, GLint ysize,
+static void halve1Dimage_short(GLint components, GLuint width, GLuint height,
+ const GLshort *dataIn, GLshort *dataOut,
+ GLint element_size, GLint ysize,
GLint group_size, GLint myswap_bytes)
{
GLint halfWidth= width / 2;
*dest= (sshort[0] + sshort[1]) / 2;
src+= element_size;
- dest++;
- }
+ dest++;
+ }
src+= group_size; /* skip to next 2 */
}
{
- int padBytes= ysize - (width*group_size);
+ int padBytes= ysize - (width*group_size);
src+= padBytes; /* for assertion only */
}
}
else if (width == 1) { /* 1 column */
int padBytes= ysize - (width * group_size);
assert(height != 1); /* widthxheight can't be 1x1 */
- halfWidth= 1;
+ halfWidth= 1;
/* one vertical column with possible pad bytes per row */
/* average two at a time */
src+= element_size;
dest++;
- }
+ }
src+= padBytes; /* add pad bytes, if any, to get to end to row */
src+= ysize;
}
} /* halve1Dimage_short() */
-static void halveImage_uint(GLint components, GLuint width, GLuint height,
- const GLuint *datain, GLuint *dataout,
+static void halveImage_uint(GLint components, GLuint width, GLuint height,
+ const GLuint *datain, GLuint *dataout,
GLint element_size, GLint ysize, GLint group_size,
GLint myswap_bytes)
{
int i, j, k;
int newwidth, newheight;
+ int padBytes;
GLuint *s;
const char *t;
newwidth = width / 2;
newheight = height / 2;
+ padBytes = ysize - (width*group_size);
s = dataout;
t = (const char *)datain;
/* Piece o' cake! */
- if (!myswap_bytes)
+ if (!myswap_bytes)
for (i = 0; i < newheight; i++) {
for (j = 0; j < newwidth; j++) {
for (k = 0; k < components; k++) {
- /* need to cast to double to hold large unsigned ints */
- s[0] = ((double)*(const GLuint*)t +
- (double)*(const GLuint*)(t+group_size) +
- (double)*(const GLuint*)(t+ysize) +
- (double)*(const GLuint*)(t+ysize+group_size))/4 + 0.5;
+ /* need to cast to double to hold large unsigned ints */
+ s[0] = ((double)*(const GLuint*)t +
+ (double)*(const GLuint*)(t+group_size) +
+ (double)*(const GLuint*)(t+ysize) +
+ (double)*(const GLuint*)(t+ysize+group_size))/4 + 0.5;
s++; t += element_size;
}
t += group_size;
}
+ t += padBytes;
t += ysize;
}
else
for (i = 0; i < newheight; i++) {
- for (j = 0; j < newwidth; j++) {
- for (k = 0; k < components; k++) {
- /* need to cast to double to hold large unsigned ints */
+ for (j = 0; j < newwidth; j++) {
+ for (k = 0; k < components; k++) {
+ /* need to cast to double to hold large unsigned ints */
GLdouble buf;
- buf = (GLdouble)__GLU_SWAP_4_BYTES(t) +
- (GLdouble)__GLU_SWAP_4_BYTES(t+group_size) +
- (GLdouble)__GLU_SWAP_4_BYTES(t+ysize) +
- (GLdouble)__GLU_SWAP_4_BYTES(t+ysize+group_size);
- s[0] = (GLuint)(buf/4 + 0.5);
+ buf = (GLdouble)__GLU_SWAP_4_BYTES(t) +
+ (GLdouble)__GLU_SWAP_4_BYTES(t+group_size) +
+ (GLdouble)__GLU_SWAP_4_BYTES(t+ysize) +
+ (GLdouble)__GLU_SWAP_4_BYTES(t+ysize+group_size);
+ s[0] = (GLuint)(buf/4 + 0.5);
s++; t += element_size;
}
t += group_size;
- }
- t += ysize;
+ }
+ t += padBytes;
+ t += ysize;
}
}
/* */
-static void halve1Dimage_uint(GLint components, GLuint width, GLuint height,
- const GLuint *dataIn, GLuint *dataOut,
- GLint element_size, GLint ysize,
+static void halve1Dimage_uint(GLint components, GLuint width, GLuint height,
+ const GLuint *dataIn, GLuint *dataOut,
+ GLint element_size, GLint ysize,
GLint group_size, GLint myswap_bytes)
{
GLint halfWidth= width / 2;
uint[0]= *(const GLuint*)src;
uint[1]= *(const GLuint*)(src+group_size);
}
- *dest= ((double)uint[0]+(double)uint[1])/2.0;
+ *dest= ((double)uint[0]+(double)uint[1])/2.0;
src+= element_size;
- dest++;
- }
+ dest++;
+ }
src+= group_size; /* skip to next 2 */
}
{
- int padBytes= ysize - (width*group_size);
+ int padBytes= ysize - (width*group_size);
src+= padBytes; /* for assertion only */
}
}
else if (width == 1) { /* 1 column */
int padBytes= ysize - (width * group_size);
assert(height != 1); /* widthxheight can't be 1x1 */
- halfWidth= 1;
+ halfWidth= 1;
/* one vertical column with possible pad bytes per row */
/* average two at a time */
src+= element_size;
dest++;
- }
+ }
src+= padBytes; /* add pad bytes, if any, to get to end to row */
src+= ysize;
}
} /* halve1Dimage_uint() */
-static void halveImage_int(GLint components, GLuint width, GLuint height,
- const GLint *datain, GLint *dataout, GLint element_size,
+static void halveImage_int(GLint components, GLuint width, GLuint height,
+ const GLint *datain, GLint *dataout, GLint element_size,
GLint ysize, GLint group_size, GLint myswap_bytes)
{
int i, j, k;
int newwidth, newheight;
+ int padBytes;
GLint *s;
const char *t;
newwidth = width / 2;
newheight = height / 2;
+ padBytes = ysize - (width*group_size);
s = dataout;
t = (const char *)datain;
/* Piece o' cake! */
- if (!myswap_bytes)
+ if (!myswap_bytes)
for (i = 0; i < newheight; i++) {
for (j = 0; j < newwidth; j++) {
for (k = 0; k < components; k++) {
- s[0] = ((float)*(const GLint*)t +
- (float)*(const GLint*)(t+group_size) +
- (float)*(const GLint*)(t+ysize) +
+ s[0] = ((float)*(const GLint*)t +
+ (float)*(const GLint*)(t+group_size) +
+ (float)*(const GLint*)(t+ysize) +
(float)*(const GLint*)(t+ysize+group_size))/4 + 0.5;
s++; t += element_size;
}
t += group_size;
}
+ t += padBytes;
t += ysize;
}
- else
+ else
for (i = 0; i < newheight; i++) {
- for (j = 0; j < newwidth; j++) {
- for (k = 0; k < components; k++) {
+ for (j = 0; j < newwidth; j++) {
+ for (k = 0; k < components; k++) {
GLuint b;
- GLfloat buf;
- b = __GLU_SWAP_4_BYTES(t);
- buf = *(GLint*)&b;
- b = __GLU_SWAP_4_BYTES(t+group_size);
- buf += *(GLint*)&b;
- b = __GLU_SWAP_4_BYTES(t+ysize);
- buf += *(GLint*)&b;
- b = __GLU_SWAP_4_BYTES(t+ysize+group_size);
- buf += *(GLint*)&b;
- s[0] = (GLint)(buf/4 + 0.5);
-
- s++; t += element_size;
+ GLfloat buf;
+ b = __GLU_SWAP_4_BYTES(t);
+ buf = *(GLint*)&b;
+ b = __GLU_SWAP_4_BYTES(t+group_size);
+ buf += *(GLint*)&b;
+ b = __GLU_SWAP_4_BYTES(t+ysize);
+ buf += *(GLint*)&b;
+ b = __GLU_SWAP_4_BYTES(t+ysize+group_size);
+ buf += *(GLint*)&b;
+ s[0] = (GLint)(buf/4 + 0.5);
+
+ s++; t += element_size;
}
t += group_size;
- }
- t += ysize;
+ }
+ t += padBytes;
+ t += ysize;
}
}
/* */
-static void halve1Dimage_int(GLint components, GLuint width, GLuint height,
- const GLint *dataIn, GLint *dataOut,
- GLint element_size, GLint ysize,
+static void halve1Dimage_int(GLint components, GLuint width, GLuint height,
+ const GLint *dataIn, GLint *dataOut,
+ GLint element_size, GLint ysize,
GLint group_size, GLint myswap_bytes)
{
GLint halfWidth= width / 2;
*dest= ((float)uint[0]+(float)uint[1])/2.0;
src+= element_size;
- dest++;
- }
+ dest++;
+ }
src+= group_size; /* skip to next 2 */
}
{
- int padBytes= ysize - (width*group_size);
+ int padBytes= ysize - (width*group_size);
src+= padBytes; /* for assertion only */
}
}
else if (width == 1) { /* 1 column */
int padBytes= ysize - (width * group_size);
assert(height != 1); /* widthxheight can't be 1x1 */
- halfWidth= 1;
+ halfWidth= 1;
/* one vertical column with possible pad bytes per row */
/* average two at a time */
src+= element_size;
dest++;
- }
+ }
src+= padBytes; /* add pad bytes, if any, to get to end to row */
src+= ysize;
}
} /* halve1Dimage_int() */
-static void halveImage_float(GLint components, GLuint width, GLuint height,
- const GLfloat *datain, GLfloat *dataout,
+static void halveImage_float(GLint components, GLuint width, GLuint height,
+ const GLfloat *datain, GLfloat *dataout,
GLint element_size, GLint ysize, GLint group_size,
GLint myswap_bytes)
{
int i, j, k;
int newwidth, newheight;
+ int padBytes;
GLfloat *s;
const char *t;
newwidth = width / 2;
newheight = height / 2;
+ padBytes = ysize - (width*group_size);
s = dataout;
t = (const char *)datain;
for (i = 0; i < newheight; i++) {
for (j = 0; j < newwidth; j++) {
for (k = 0; k < components; k++) {
- s[0] = (*(const GLfloat*)t +
- *(const GLfloat*)(t+group_size) +
- *(const GLfloat*)(t+ysize) +
+ s[0] = (*(const GLfloat*)t +
+ *(const GLfloat*)(t+group_size) +
+ *(const GLfloat*)(t+ysize) +
*(const GLfloat*)(t+ysize+group_size)) / 4;
s++; t += element_size;
}
t += group_size;
}
+ t += padBytes;
t += ysize;
}
- else
+ else
for (i = 0; i < newheight; i++) {
- for (j = 0; j < newwidth; j++) {
- for (k = 0; k < components; k++) {
- GLuint b;
- b = __GLU_SWAP_4_BYTES(t);
- s[0] = *(GLfloat*)&b;
- b = __GLU_SWAP_4_BYTES(t+group_size);
- s[0] += *(GLfloat*)&b;
- b = __GLU_SWAP_4_BYTES(t+ysize);
- s[0] += *(GLfloat*)&b;
- b = __GLU_SWAP_4_BYTES(t+ysize+group_size);
- s[0] += *(GLfloat*)&b;
+ for (j = 0; j < newwidth; j++) {
+ for (k = 0; k < components; k++) {
+ union { GLuint b; GLfloat f; } swapbuf;
+ swapbuf.b = __GLU_SWAP_4_BYTES(t);
+ s[0] = swapbuf.f;
+ swapbuf.b = __GLU_SWAP_4_BYTES(t+group_size);
+ s[0] += swapbuf.f;
+ swapbuf.b = __GLU_SWAP_4_BYTES(t+ysize);
+ s[0] += swapbuf.f;
+ swapbuf.b = __GLU_SWAP_4_BYTES(t+ysize+group_size);
+ s[0] += swapbuf.f;
s[0] /= 4;
- s++; t += element_size;
+ s++; t += element_size;
}
t += group_size;
- }
- t += ysize;
+ }
+ t += padBytes;
+ t += ysize;
}
}
/* */
-static void halve1Dimage_float(GLint components, GLuint width, GLuint height,
- const GLfloat *dataIn, GLfloat *dataOut,
- GLint element_size, GLint ysize,
+static void halve1Dimage_float(GLint components, GLuint width, GLuint height,
+ const GLfloat *dataIn, GLfloat *dataOut,
+ GLint element_size, GLint ysize,
GLint group_size, GLint myswap_bytes)
{
GLint halfWidth= width / 2;
GLint halfHeight= height / 2;
const char *src= (const char *) dataIn;
- GLfloat *dest= dataOut;
+ GLfloat *dest= dataOut;
int jj;
assert(width == 1 || height == 1); /* must be 1D */
*dest= (sfloat[0] + sfloat[1]) / 2.0;
src+= element_size;
- dest++;
- }
+ dest++;
+ }
src+= group_size; /* skip to next 2 */
}
{
- int padBytes= ysize - (width*group_size);
+ int padBytes= ysize - (width*group_size);
src+= padBytes; /* for assertion only */
}
}
else if (width == 1) { /* 1 column */
int padBytes= ysize - (width * group_size);
assert(height != 1); /* widthxheight can't be 1x1 */
- halfWidth= 1;
+ halfWidth= 1;
/* one vertical column with possible pad bytes per row */
/* average two at a time */
src+= element_size;
dest++;
- }
+ }
src+= padBytes; /* add pad bytes, if any, to get to end to row */
src+= ysize; /* skip to odd row */
}
[components * element_size * halfWidth * halfHeight]);
} /* halve1Dimage_float() */
-static void scale_internal(GLint components, GLint widthin, GLint heightin,
- const GLushort *datain,
- GLint widthout, GLint heightout,
+static void scale_internal(GLint components, GLint widthin, GLint heightin,
+ const GLushort *datain,
+ GLint widthout, GLint heightout,
GLushort *dataout)
{
float x, lowx, highx, convx, halfconvx;
}
}
-static void scale_internal_ubyte(GLint components, GLint widthin,
- GLint heightin, const GLubyte *datain,
- GLint widthout, GLint heightout,
+static void scale_internal_ubyte(GLint components, GLint widthin,
+ GLint heightin, const GLubyte *datain,
+ GLint widthout, GLint heightout,
GLubyte *dataout, GLint element_size,
GLint ysize, GLint group_size)
{
const char *left, *right;
if (widthin == widthout*2 && heightin == heightout*2) {
- halveImage_ubyte(components, widthin, heightin,
- (const GLubyte *)datain, (GLubyte *)dataout,
+ halveImage_ubyte(components, widthin, heightin,
+ (const GLubyte *)datain, (GLubyte *)dataout,
element_size, ysize, group_size);
return;
}
convy_float = convy - convy_int;
convx_int = floor(convx);
convx_float = convx - convx_int;
-
+
area = convx * convy;
lowy_int = 0;
highy_float = convy_float;
for (i = 0; i < heightout; i++) {
+ /* Clamp here to be sure we don't read beyond input buffer. */
+ if (highy_int >= heightin)
+ highy_int = heightin - 1;
lowx_int = 0;
lowx_float = 0;
highx_int = convx_int;
if((highy_int>lowy_int) && (highx_int>lowx_int)) {
y_percent = 1-lowy_float;
- temp = (const char *)datain + xindex + lowy_int * ysize;
+ temp = (const char *)datain + xindex + lowy_int * ysize;
percent = y_percent * (1-lowx_float);
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
totals[k] += (GLubyte)(*(temp_index)) * percent;
- }
+ }
left = temp;
- for(l = lowx_int+1; l < highx_int; l++) {
+ for(l = lowx_int+1; l < highx_int; l++) {
temp += group_size;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- totals[k] += (GLubyte)(*(temp_index)) * y_percent;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ totals[k] += (GLubyte)(*(temp_index)) * y_percent;
}
- }
+ }
temp += group_size;
right = temp;
percent = y_percent * highx_float;
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- totals[k] += (GLubyte)(*(temp_index)) * percent;
- }
+ totals[k] += (GLubyte)(*(temp_index)) * percent;
+ }
- /* calculate the value for pixels in the last row */
+ /* calculate the value for pixels in the last row */
y_percent = highy_float;
percent = y_percent * (1-lowx_float);
temp = (const char *)datain + xindex + highy_int * ysize;
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- totals[k] += (GLubyte)(*(temp_index)) * percent;
- }
+ totals[k] += (GLubyte)(*(temp_index)) * percent;
+ }
for(l = lowx_int+1; l < highx_int; l++) {
- temp += group_size;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- totals[k] += (GLubyte)(*(temp_index)) * y_percent;
- }
- }
- temp += group_size;
+ temp += group_size;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ totals[k] += (GLubyte)(*(temp_index)) * y_percent;
+ }
+ }
+ temp += group_size;
percent = y_percent * highx_float;
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- totals[k] += (GLubyte)(*(temp_index)) * percent;
- }
+ totals[k] += (GLubyte)(*(temp_index)) * percent;
+ }
- /* calculate the value for pixels in the 1st and last column */
+ /* calculate the value for pixels in the 1st and last column */
for(m = lowy_int+1; m < highy_int; m++) {
left += ysize;
right += ysize;
- for (k = 0; k < components;
- k++, left += element_size, right += element_size) {
- totals[k] += (GLubyte)(*(left))*(1-lowx_float)
+ for (k = 0; k < components;
+ k++, left += element_size, right += element_size) {
+ totals[k] += (GLubyte)(*(left))*(1-lowx_float)
+(GLubyte)(*(right))*highx_float;
}
}
x_percent = highx_float - lowx_float;
percent = (1-lowy_float)*x_percent;
temp = (const char *)datain + xindex + lowy_int*ysize;
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- totals[k] += (GLubyte)(*(temp_index)) * percent;
- }
+ totals[k] += (GLubyte)(*(temp_index)) * percent;
+ }
for(m = lowy_int+1; m < highy_int; m++) {
temp += ysize;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- totals[k] += (GLubyte)(*(temp_index)) * x_percent;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ totals[k] += (GLubyte)(*(temp_index)) * x_percent;
}
}
percent = x_percent * highy_float;
temp += ysize;
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- totals[k] += (GLubyte)(*(temp_index)) * percent;
- }
+ totals[k] += (GLubyte)(*(temp_index)) * percent;
+ }
} else if (highx_int > lowx_int) {
y_percent = highy_float - lowy_float;
percent = (1-lowx_float)*y_percent;
temp = (const char *)datain + xindex + lowy_int*ysize;
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- totals[k] += (GLubyte)(*(temp_index)) * percent;
- }
+ totals[k] += (GLubyte)(*(temp_index)) * percent;
+ }
for (l = lowx_int+1; l < highx_int; l++) {
- temp += group_size;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- totals[k] += (GLubyte)(*(temp_index)) * y_percent;
+ temp += group_size;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ totals[k] += (GLubyte)(*(temp_index)) * y_percent;
}
}
temp += group_size;
percent = y_percent * highx_float;
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- totals[k] += (GLubyte)(*(temp_index)) * percent;
+ totals[k] += (GLubyte)(*(temp_index)) * percent;
}
} else {
percent = (highy_float-lowy_float)*(highx_float-lowx_float);
temp = (const char *)datain + xindex + lowy_int * ysize;
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- totals[k] += (GLubyte)(*(temp_index)) * percent;
- }
+ totals[k] += (GLubyte)(*(temp_index)) * percent;
+ }
}
- /* this is for the pixels in the body */
+ /* this is for the pixels in the body */
temp0 = (const char *)datain + xindex + group_size +
(lowy_int+1)*ysize;
for (m = lowy_int+1; m < highy_int; m++) {
temp = temp0;
for(l = lowx_int+1; l < highx_int; l++) {
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- totals[k] += (GLubyte)(*(temp_index));
- }
- temp += group_size;
- }
- temp0 += ysize;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ totals[k] += (GLubyte)(*(temp_index));
+ }
+ temp += group_size;
+ }
+ temp0 += ysize;
}
outindex = (j + (i * widthout)) * components;
lowx_int = highx_int;
lowx_float = highx_float;
highx_int += convx_int;
- highx_float += convx_float;
+ highx_float += convx_float;
if(highx_float > 1) {
highx_float -= 1.0;
highx_int++;
}
}
-static void scale_internal_byte(GLint components, GLint widthin,
- GLint heightin, const GLbyte *datain,
- GLint widthout, GLint heightout,
+static void scale_internal_byte(GLint components, GLint widthin,
+ GLint heightin, const GLbyte *datain,
+ GLint widthout, GLint heightout,
GLbyte *dataout, GLint element_size,
GLint ysize, GLint group_size)
{
const char *left, *right;
if (widthin == widthout*2 && heightin == heightout*2) {
- halveImage_byte(components, widthin, heightin,
- (const GLbyte *)datain, (GLbyte *)dataout,
+ halveImage_byte(components, widthin, heightin,
+ (const GLbyte *)datain, (GLbyte *)dataout,
element_size, ysize, group_size);
return;
}
convy_float = convy - convy_int;
convx_int = floor(convx);
convx_float = convx - convx_int;
-
+
area = convx * convy;
lowy_int = 0;
highy_float = convy_float;
for (i = 0; i < heightout; i++) {
+ /* Clamp here to be sure we don't read beyond input buffer. */
+ if (highy_int >= heightin)
+ highy_int = heightin - 1;
lowx_int = 0;
lowx_float = 0;
highx_int = convx_int;
*/
totals[0] = totals[1] = totals[2] = totals[3] = 0.0;
- /* calculate the value for pixels in the 1st row */
+ /* calculate the value for pixels in the 1st row */
xindex = lowx_int*group_size;
if((highy_int>lowy_int) && (highx_int>lowx_int)) {
y_percent = 1-lowy_float;
- temp = (const char *)datain + xindex + lowy_int * ysize;
+ temp = (const char *)datain + xindex + lowy_int * ysize;
percent = y_percent * (1-lowx_float);
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
totals[k] += (GLbyte)(*(temp_index)) * percent;
- }
+ }
left = temp;
- for(l = lowx_int+1; l < highx_int; l++) {
+ for(l = lowx_int+1; l < highx_int; l++) {
temp += group_size;
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- totals[k] += (GLbyte)(*(temp_index)) * y_percent;
+ totals[k] += (GLbyte)(*(temp_index)) * y_percent;
}
- }
+ }
temp += group_size;
right = temp;
percent = y_percent * highx_float;
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- totals[k] += (GLbyte)(*(temp_index)) * percent;
- }
+ totals[k] += (GLbyte)(*(temp_index)) * percent;
+ }
- /* calculate the value for pixels in the last row */
+ /* calculate the value for pixels in the last row */
y_percent = highy_float;
percent = y_percent * (1-lowx_float);
temp = (const char *)datain + xindex + highy_int * ysize;
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- totals[k] += (GLbyte)(*(temp_index)) * percent;
- }
+ totals[k] += (GLbyte)(*(temp_index)) * percent;
+ }
for(l = lowx_int+1; l < highx_int; l++) {
- temp += group_size;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- totals[k] += (GLbyte)(*(temp_index)) * y_percent;
- }
- }
- temp += group_size;
+ temp += group_size;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ totals[k] += (GLbyte)(*(temp_index)) * y_percent;
+ }
+ }
+ temp += group_size;
percent = y_percent * highx_float;
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- totals[k] += (GLbyte)(*(temp_index)) * percent;
- }
+ totals[k] += (GLbyte)(*(temp_index)) * percent;
+ }
- /* calculate the value for pixels in the 1st and last column */
+ /* calculate the value for pixels in the 1st and last column */
for(m = lowy_int+1; m < highy_int; m++) {
left += ysize;
right += ysize;
- for (k = 0; k < components;
- k++, left += element_size, right += element_size) {
- totals[k] += (GLbyte)(*(left))*(1-lowx_float)
+ for (k = 0; k < components;
+ k++, left += element_size, right += element_size) {
+ totals[k] += (GLbyte)(*(left))*(1-lowx_float)
+(GLbyte)(*(right))*highx_float;
}
}
x_percent = highx_float - lowx_float;
percent = (1-lowy_float)*x_percent;
temp = (const char *)datain + xindex + lowy_int*ysize;
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- totals[k] += (GLbyte)(*(temp_index)) * percent;
- }
+ totals[k] += (GLbyte)(*(temp_index)) * percent;
+ }
for(m = lowy_int+1; m < highy_int; m++) {
temp += ysize;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- totals[k] += (GLbyte)(*(temp_index)) * x_percent;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ totals[k] += (GLbyte)(*(temp_index)) * x_percent;
}
}
percent = x_percent * highy_float;
temp += ysize;
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- totals[k] += (GLbyte)(*(temp_index)) * percent;
- }
+ totals[k] += (GLbyte)(*(temp_index)) * percent;
+ }
} else if (highx_int > lowx_int) {
y_percent = highy_float - lowy_float;
percent = (1-lowx_float)*y_percent;
temp = (const char *)datain + xindex + lowy_int*ysize;
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- totals[k] += (GLbyte)(*(temp_index)) * percent;
- }
+ totals[k] += (GLbyte)(*(temp_index)) * percent;
+ }
for (l = lowx_int+1; l < highx_int; l++) {
- temp += group_size;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- totals[k] += (GLbyte)(*(temp_index)) * y_percent;
+ temp += group_size;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ totals[k] += (GLbyte)(*(temp_index)) * y_percent;
}
}
temp += group_size;
percent = y_percent * highx_float;
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- totals[k] += (GLbyte)(*(temp_index)) * percent;
+ totals[k] += (GLbyte)(*(temp_index)) * percent;
}
} else {
percent = (highy_float-lowy_float)*(highx_float-lowx_float);
temp = (const char *)datain + xindex + lowy_int * ysize;
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- totals[k] += (GLbyte)(*(temp_index)) * percent;
- }
+ totals[k] += (GLbyte)(*(temp_index)) * percent;
+ }
}
- /* this is for the pixels in the body */
- temp0 = (const char *)datain + xindex + group_size +
+ /* this is for the pixels in the body */
+ temp0 = (const char *)datain + xindex + group_size +
(lowy_int+1)*ysize;
for (m = lowy_int+1; m < highy_int; m++) {
temp = temp0;
for(l = lowx_int+1; l < highx_int; l++) {
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- totals[k] += (GLbyte)(*(temp_index));
- }
- temp += group_size;
- }
- temp0 += ysize;
+ totals[k] += (GLbyte)(*(temp_index));
+ }
+ temp += group_size;
+ }
+ temp0 += ysize;
}
outindex = (j + (i * widthout)) * components;
lowx_int = highx_int;
lowx_float = highx_float;
highx_int += convx_int;
- highx_float += convx_float;
+ highx_float += convx_float;
if(highx_float > 1) {
highx_float -= 1.0;
highx_int++;
}
}
-static void scale_internal_ushort(GLint components, GLint widthin,
- GLint heightin, const GLushort *datain,
- GLint widthout, GLint heightout,
+static void scale_internal_ushort(GLint components, GLint widthin,
+ GLint heightin, const GLushort *datain,
+ GLint widthout, GLint heightout,
GLushort *dataout, GLint element_size,
GLint ysize, GLint group_size,
GLint myswap_bytes)
const char *left, *right;
if (widthin == widthout*2 && heightin == heightout*2) {
- halveImage_ushort(components, widthin, heightin,
- (const GLushort *)datain, (GLushort *)dataout,
+ halveImage_ushort(components, widthin, heightin,
+ (const GLushort *)datain, (GLushort *)dataout,
element_size, ysize, group_size, myswap_bytes);
return;
}
convy_float = convy - convy_int;
convx_int = floor(convx);
convx_float = convx - convx_int;
-
+
area = convx * convy;
lowy_int = 0;
highy_float = convy_float;
for (i = 0; i < heightout; i++) {
+ /* Clamp here to be sure we don't read beyond input buffer. */
+ if (highy_int >= heightin)
+ highy_int = heightin - 1;
lowx_int = 0;
lowx_float = 0;
highx_int = convx_int;
if((highy_int>lowy_int) && (highx_int>lowx_int)) {
y_percent = 1-lowy_float;
- temp = (const char *)datain + xindex + lowy_int * ysize;
+ temp = (const char *)datain + xindex + lowy_int * ysize;
percent = y_percent * (1-lowx_float);
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
if (myswap_bytes) {
totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
} else {
- totals[k] += *(const GLushort*)temp_index * percent;
+ totals[k] += *(const GLushort*)temp_index * percent;
}
- }
+ }
left = temp;
- for(l = lowx_int+1; l < highx_int; l++) {
+ for(l = lowx_int+1; l < highx_int; l++) {
temp += group_size;
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] +=
- __GLU_SWAP_2_BYTES(temp_index) * y_percent;
- } else {
- totals[k] += *(const GLushort*)temp_index * y_percent;
- }
- }
- }
+ if (myswap_bytes) {
+ totals[k] +=
+ __GLU_SWAP_2_BYTES(temp_index) * y_percent;
+ } else {
+ totals[k] += *(const GLushort*)temp_index * y_percent;
+ }
+ }
+ }
temp += group_size;
right = temp;
percent = y_percent * highx_float;
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
- } else {
- totals[k] += *(const GLushort*)temp_index * percent;
- }
- }
-
- /* calculate the value for pixels in the last row */
+ if (myswap_bytes) {
+ totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
+ } else {
+ totals[k] += *(const GLushort*)temp_index * percent;
+ }
+ }
+
+ /* calculate the value for pixels in the last row */
y_percent = highy_float;
percent = y_percent * (1-lowx_float);
temp = (const char *)datain + xindex + highy_int * ysize;
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
- } else {
- totals[k] += *(const GLushort*)temp_index * percent;
- }
- }
+ if (myswap_bytes) {
+ totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
+ } else {
+ totals[k] += *(const GLushort*)temp_index * percent;
+ }
+ }
for(l = lowx_int+1; l < highx_int; l++) {
- temp += group_size;
- for (k = 0, temp_index = temp; k < components;
+ temp += group_size;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] +=
- __GLU_SWAP_2_BYTES(temp_index) * y_percent;
- } else {
- totals[k] += *(const GLushort*)temp_index * y_percent;
- }
- }
- }
- temp += group_size;
+ if (myswap_bytes) {
+ totals[k] +=
+ __GLU_SWAP_2_BYTES(temp_index) * y_percent;
+ } else {
+ totals[k] += *(const GLushort*)temp_index * y_percent;
+ }
+ }
+ }
+ temp += group_size;
percent = y_percent * highx_float;
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
- } else {
- totals[k] += *(const GLushort*)temp_index * percent;
- }
- }
+ if (myswap_bytes) {
+ totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
+ } else {
+ totals[k] += *(const GLushort*)temp_index * percent;
+ }
+ }
/* calculate the value for pixels in the 1st and last column */
for(m = lowy_int+1; m < highy_int; m++) {
left += ysize;
right += ysize;
- for (k = 0; k < components;
- k++, left += element_size, right += element_size) {
- if (myswap_bytes) {
- totals[k] +=
- __GLU_SWAP_2_BYTES(left) * (1-lowx_float) +
- __GLU_SWAP_2_BYTES(right) * highx_float;
- } else {
- totals[k] += *(const GLushort*)left * (1-lowx_float)
- + *(const GLushort*)right * highx_float;
- }
+ for (k = 0; k < components;
+ k++, left += element_size, right += element_size) {
+ if (myswap_bytes) {
+ totals[k] +=
+ __GLU_SWAP_2_BYTES(left) * (1-lowx_float) +
+ __GLU_SWAP_2_BYTES(right) * highx_float;
+ } else {
+ totals[k] += *(const GLushort*)left * (1-lowx_float)
+ + *(const GLushort*)right * highx_float;
+ }
}
}
} else if (highy_int > lowy_int) {
x_percent = highx_float - lowx_float;
percent = (1-lowy_float)*x_percent;
temp = (const char *)datain + xindex + lowy_int*ysize;
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
- } else {
- totals[k] += *(const GLushort*)temp_index * percent;
- }
- }
+ if (myswap_bytes) {
+ totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
+ } else {
+ totals[k] += *(const GLushort*)temp_index * percent;
+ }
+ }
for(m = lowy_int+1; m < highy_int; m++) {
temp += ysize;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] +=
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ totals[k] +=
__GLU_SWAP_2_BYTES(temp_index) * x_percent;
- } else {
- totals[k] += *(const GLushort*)temp_index * x_percent;
- }
+ } else {
+ totals[k] += *(const GLushort*)temp_index * x_percent;
+ }
}
}
percent = x_percent * highy_float;
temp += ysize;
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
- } else {
- totals[k] += *(const GLushort*)temp_index * percent;
- }
- }
+ if (myswap_bytes) {
+ totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
+ } else {
+ totals[k] += *(const GLushort*)temp_index * percent;
+ }
+ }
} else if (highx_int > lowx_int) {
y_percent = highy_float - lowy_float;
percent = (1-lowx_float)*y_percent;
temp = (const char *)datain + xindex + lowy_int*ysize;
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
- } else {
- totals[k] += *(const GLushort*)temp_index * percent;
- }
- }
+ if (myswap_bytes) {
+ totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
+ } else {
+ totals[k] += *(const GLushort*)temp_index * percent;
+ }
+ }
for (l = lowx_int+1; l < highx_int; l++) {
- temp += group_size;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] +=
- __GLU_SWAP_2_BYTES(temp_index) * y_percent;
- } else {
- totals[k] += *(const GLushort*)temp_index * y_percent;
- }
+ temp += group_size;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ totals[k] +=
+ __GLU_SWAP_2_BYTES(temp_index) * y_percent;
+ } else {
+ totals[k] += *(const GLushort*)temp_index * y_percent;
+ }
}
}
temp += group_size;
percent = y_percent * highx_float;
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
- } else {
- totals[k] += *(const GLushort*)temp_index * percent;
- }
+ if (myswap_bytes) {
+ totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
+ } else {
+ totals[k] += *(const GLushort*)temp_index * percent;
+ }
}
} else {
percent = (highy_float-lowy_float)*(highx_float-lowx_float);
temp = (const char *)datain + xindex + lowy_int * ysize;
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
- } else {
- totals[k] += *(const GLushort*)temp_index * percent;
- }
- }
+ if (myswap_bytes) {
+ totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
+ } else {
+ totals[k] += *(const GLushort*)temp_index * percent;
+ }
+ }
}
/* this is for the pixels in the body */
for (m = lowy_int+1; m < highy_int; m++) {
temp = temp0;
for(l = lowx_int+1; l < highx_int; l++) {
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] += __GLU_SWAP_2_BYTES(temp_index);
- } else {
- totals[k] += *(const GLushort*)temp_index;
- }
- }
- temp += group_size;
- }
- temp0 += ysize;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ totals[k] += __GLU_SWAP_2_BYTES(temp_index);
+ } else {
+ totals[k] += *(const GLushort*)temp_index;
+ }
+ }
+ temp += group_size;
+ }
+ temp0 += ysize;
}
outindex = (j + (i * widthout)) * components;
lowx_int = highx_int;
lowx_float = highx_float;
highx_int += convx_int;
- highx_float += convx_float;
+ highx_float += convx_float;
if(highx_float > 1) {
highx_float -= 1.0;
highx_int++;
}
static void scale_internal_short(GLint components, GLint widthin,
- GLint heightin, const GLshort *datain,
- GLint widthout, GLint heightout,
- GLshort *dataout, GLint element_size,
- GLint ysize, GLint group_size,
- GLint myswap_bytes)
+ GLint heightin, const GLshort *datain,
+ GLint widthout, GLint heightout,
+ GLshort *dataout, GLint element_size,
+ GLint ysize, GLint group_size,
+ GLint myswap_bytes)
{
float convx;
float convy;
GLushort swapbuf; /* unsigned buffer */
if (widthin == widthout*2 && heightin == heightout*2) {
- halveImage_short(components, widthin, heightin,
- (const GLshort *)datain, (GLshort *)dataout,
- element_size, ysize, group_size, myswap_bytes);
- return;
+ halveImage_short(components, widthin, heightin,
+ (const GLshort *)datain, (GLshort *)dataout,
+ element_size, ysize, group_size, myswap_bytes);
+ return;
}
convy = (float) heightin/heightout;
convx = (float) widthin/widthout;
highy_float = convy_float;
for (i = 0; i < heightout; i++) {
- lowx_int = 0;
- lowx_float = 0;
- highx_int = convx_int;
- highx_float = convx_float;
-
- for (j = 0; j < widthout; j++) {
- /*
- ** Ok, now apply box filter to box that goes from (lowx, lowy)
- ** to (highx, highy) on input data into this pixel on output
- ** data.
- */
- totals[0] = totals[1] = totals[2] = totals[3] = 0.0;
-
- /* calculate the value for pixels in the 1st row */
- xindex = lowx_int*group_size;
- if((highy_int>lowy_int) && (highx_int>lowx_int)) {
-
- y_percent = 1-lowy_float;
- temp = (const char *)datain + xindex + lowy_int * ysize;
- percent = y_percent * (1-lowx_float);
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_2_BYTES(temp_index);
- totals[k] += *(const GLshort*)&swapbuf * percent;
- } else {
- totals[k] += *(const GLshort*)temp_index * percent;
- }
- }
- left = temp;
- for(l = lowx_int+1; l < highx_int; l++) {
- temp += group_size;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_2_BYTES(temp_index);
- totals[k] += *(const GLshort*)&swapbuf * y_percent;
- } else {
- totals[k] += *(const GLshort*)temp_index * y_percent;
- }
- }
- }
- temp += group_size;
- right = temp;
- percent = y_percent * highx_float;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_2_BYTES(temp_index);
- totals[k] += *(const GLshort*)&swapbuf * percent;
- } else {
- totals[k] += *(const GLshort*)temp_index * percent;
- }
- }
-
- /* calculate the value for pixels in the last row */
- y_percent = highy_float;
- percent = y_percent * (1-lowx_float);
- temp = (const char *)datain + xindex + highy_int * ysize;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
+ /* Clamp here to be sure we don't read beyond input buffer. */
+ if (highy_int >= heightin)
+ highy_int = heightin - 1;
+ lowx_int = 0;
+ lowx_float = 0;
+ highx_int = convx_int;
+ highx_float = convx_float;
+
+ for (j = 0; j < widthout; j++) {
+ /*
+ ** Ok, now apply box filter to box that goes from (lowx, lowy)
+ ** to (highx, highy) on input data into this pixel on output
+ ** data.
+ */
+ totals[0] = totals[1] = totals[2] = totals[3] = 0.0;
+
+ /* calculate the value for pixels in the 1st row */
+ xindex = lowx_int*group_size;
+ if((highy_int>lowy_int) && (highx_int>lowx_int)) {
+
+ y_percent = 1-lowy_float;
+ temp = (const char *)datain + xindex + lowy_int * ysize;
+ percent = y_percent * (1-lowx_float);
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
swapbuf = __GLU_SWAP_2_BYTES(temp_index);
- totals[k] += *(const GLshort*)&swapbuf * percent;
- } else {
- totals[k] += *(const GLshort*)temp_index * percent;
- }
- }
- for(l = lowx_int+1; l < highx_int; l++) {
- temp += group_size;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
+ totals[k] += *(const GLshort*)&swapbuf * percent;
+ } else {
+ totals[k] += *(const GLshort*)temp_index * percent;
+ }
+ }
+ left = temp;
+ for(l = lowx_int+1; l < highx_int; l++) {
+ temp += group_size;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
swapbuf = __GLU_SWAP_2_BYTES(temp_index);
- totals[k] += *(const GLshort*)&swapbuf * y_percent;
- } else {
- totals[k] += *(const GLshort*)temp_index * y_percent;
- }
- }
- }
- temp += group_size;
- percent = y_percent * highx_float;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_2_BYTES(temp_index);
- totals[k] += *(const GLshort*)&swapbuf * percent;
- } else {
- totals[k] += *(const GLshort*)temp_index * percent;
- }
- }
-
- /* calculate the value for pixels in the 1st and last column */
- for(m = lowy_int+1; m < highy_int; m++) {
- left += ysize;
- right += ysize;
- for (k = 0; k < components;
- k++, left += element_size, right += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_2_BYTES(left);
- totals[k] += *(const GLshort*)&swapbuf * (1-lowx_float);
- swapbuf = __GLU_SWAP_2_BYTES(right);
- totals[k] += *(const GLshort*)&swapbuf * highx_float;
- } else {
- totals[k] += *(const GLshort*)left * (1-lowx_float)
- + *(const GLshort*)right * highx_float;
- }
- }
- }
- } else if (highy_int > lowy_int) {
- x_percent = highx_float - lowx_float;
- percent = (1-lowy_float)*x_percent;
- temp = (const char *)datain + xindex + lowy_int*ysize;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_2_BYTES(temp_index);
- totals[k] += *(const GLshort*)&swapbuf * percent;
- } else {
- totals[k] += *(const GLshort*)temp_index * percent;
- }
- }
- for(m = lowy_int+1; m < highy_int; m++) {
- temp += ysize;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
+ totals[k] += *(const GLshort*)&swapbuf * y_percent;
+ } else {
+ totals[k] += *(const GLshort*)temp_index * y_percent;
+ }
+ }
+ }
+ temp += group_size;
+ right = temp;
+ percent = y_percent * highx_float;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf = __GLU_SWAP_2_BYTES(temp_index);
+ totals[k] += *(const GLshort*)&swapbuf * percent;
+ } else {
+ totals[k] += *(const GLshort*)temp_index * percent;
+ }
+ }
+
+ /* calculate the value for pixels in the last row */
+ y_percent = highy_float;
+ percent = y_percent * (1-lowx_float);
+ temp = (const char *)datain + xindex + highy_int * ysize;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf = __GLU_SWAP_2_BYTES(temp_index);
+ totals[k] += *(const GLshort*)&swapbuf * percent;
+ } else {
+ totals[k] += *(const GLshort*)temp_index * percent;
+ }
+ }
+ for(l = lowx_int+1; l < highx_int; l++) {
+ temp += group_size;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf = __GLU_SWAP_2_BYTES(temp_index);
+ totals[k] += *(const GLshort*)&swapbuf * y_percent;
+ } else {
+ totals[k] += *(const GLshort*)temp_index * y_percent;
+ }
+ }
+ }
+ temp += group_size;
+ percent = y_percent * highx_float;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf = __GLU_SWAP_2_BYTES(temp_index);
+ totals[k] += *(const GLshort*)&swapbuf * percent;
+ } else {
+ totals[k] += *(const GLshort*)temp_index * percent;
+ }
+ }
+
+ /* calculate the value for pixels in the 1st and last column */
+ for(m = lowy_int+1; m < highy_int; m++) {
+ left += ysize;
+ right += ysize;
+ for (k = 0; k < components;
+ k++, left += element_size, right += element_size) {
+ if (myswap_bytes) {
+ swapbuf = __GLU_SWAP_2_BYTES(left);
+ totals[k] += *(const GLshort*)&swapbuf * (1-lowx_float);
+ swapbuf = __GLU_SWAP_2_BYTES(right);
+ totals[k] += *(const GLshort*)&swapbuf * highx_float;
+ } else {
+ totals[k] += *(const GLshort*)left * (1-lowx_float)
+ + *(const GLshort*)right * highx_float;
+ }
+ }
+ }
+ } else if (highy_int > lowy_int) {
+ x_percent = highx_float - lowx_float;
+ percent = (1-lowy_float)*x_percent;
+ temp = (const char *)datain + xindex + lowy_int*ysize;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf = __GLU_SWAP_2_BYTES(temp_index);
+ totals[k] += *(const GLshort*)&swapbuf * percent;
+ } else {
+ totals[k] += *(const GLshort*)temp_index * percent;
+ }
+ }
+ for(m = lowy_int+1; m < highy_int; m++) {
+ temp += ysize;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
swapbuf = __GLU_SWAP_2_BYTES(temp_index);
- totals[k] += *(const GLshort*)&swapbuf * x_percent;
- } else {
- totals[k] += *(const GLshort*)temp_index * x_percent;
- }
- }
- }
- percent = x_percent * highy_float;
- temp += ysize;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
+ totals[k] += *(const GLshort*)&swapbuf * x_percent;
+ } else {
+ totals[k] += *(const GLshort*)temp_index * x_percent;
+ }
+ }
+ }
+ percent = x_percent * highy_float;
+ temp += ysize;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
swapbuf = __GLU_SWAP_2_BYTES(temp_index);
- totals[k] += *(const GLshort*)&swapbuf * percent;
- } else {
- totals[k] += *(const GLshort*)temp_index * percent;
- }
- }
- } else if (highx_int > lowx_int) {
- y_percent = highy_float - lowy_float;
- percent = (1-lowx_float)*y_percent;
-
- temp = (const char *)datain + xindex + lowy_int*ysize;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
+ totals[k] += *(const GLshort*)&swapbuf * percent;
+ } else {
+ totals[k] += *(const GLshort*)temp_index * percent;
+ }
+ }
+ } else if (highx_int > lowx_int) {
+ y_percent = highy_float - lowy_float;
+ percent = (1-lowx_float)*y_percent;
+
+ temp = (const char *)datain + xindex + lowy_int*ysize;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
swapbuf = __GLU_SWAP_2_BYTES(temp_index);
- totals[k] += *(const GLshort*)&swapbuf * percent;
- } else {
- totals[k] += *(const GLshort*)temp_index * percent;
- }
- }
- for (l = lowx_int+1; l < highx_int; l++) {
- temp += group_size;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
+ totals[k] += *(const GLshort*)&swapbuf * percent;
+ } else {
+ totals[k] += *(const GLshort*)temp_index * percent;
+ }
+ }
+ for (l = lowx_int+1; l < highx_int; l++) {
+ temp += group_size;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
swapbuf = __GLU_SWAP_2_BYTES(temp_index);
- totals[k] += *(const GLshort*)&swapbuf * y_percent;
- } else {
- totals[k] += *(const GLshort*)temp_index * y_percent;
- }
- }
- }
- temp += group_size;
- percent = y_percent * highx_float;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
+ totals[k] += *(const GLshort*)&swapbuf * y_percent;
+ } else {
+ totals[k] += *(const GLshort*)temp_index * y_percent;
+ }
+ }
+ }
+ temp += group_size;
+ percent = y_percent * highx_float;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
swapbuf = __GLU_SWAP_2_BYTES(temp_index);
- totals[k] += *(const GLshort*)&swapbuf * percent;
- } else {
- totals[k] += *(const GLshort*)temp_index * percent;
- }
- }
- } else {
- percent = (highy_float-lowy_float)*(highx_float-lowx_float);
- temp = (const char *)datain + xindex + lowy_int * ysize;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
+ totals[k] += *(const GLshort*)&swapbuf * percent;
+ } else {
+ totals[k] += *(const GLshort*)temp_index * percent;
+ }
+ }
+ } else {
+ percent = (highy_float-lowy_float)*(highx_float-lowx_float);
+ temp = (const char *)datain + xindex + lowy_int * ysize;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
swapbuf = __GLU_SWAP_2_BYTES(temp_index);
- totals[k] += *(const GLshort*)&swapbuf * percent;
- } else {
- totals[k] += *(const GLshort*)temp_index * percent;
- }
- }
- }
-
- /* this is for the pixels in the body */
- temp0 = (const char *)datain + xindex + group_size +
+ totals[k] += *(const GLshort*)&swapbuf * percent;
+ } else {
+ totals[k] += *(const GLshort*)temp_index * percent;
+ }
+ }
+ }
+
+ /* this is for the pixels in the body */
+ temp0 = (const char *)datain + xindex + group_size +
(lowy_int+1)*ysize;
- for (m = lowy_int+1; m < highy_int; m++) {
- temp = temp0;
- for(l = lowx_int+1; l < highx_int; l++) {
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
+ for (m = lowy_int+1; m < highy_int; m++) {
+ temp = temp0;
+ for(l = lowx_int+1; l < highx_int; l++) {
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
swapbuf = __GLU_SWAP_2_BYTES(temp_index);
- totals[k] += *(const GLshort*)&swapbuf;
- } else {
- totals[k] += *(const GLshort*)temp_index;
- }
- }
- temp += group_size;
- }
- temp0 += ysize;
- }
-
- outindex = (j + (i * widthout)) * components;
- for (k = 0; k < components; k++) {
- dataout[outindex + k] = totals[k]/area;
- /*printf("totals[%d] = %f\n", k, totals[k]);*/
- }
- lowx_int = highx_int;
- lowx_float = highx_float;
- highx_int += convx_int;
- highx_float += convx_float;
- if(highx_float > 1) {
- highx_float -= 1.0;
- highx_int++;
- }
- }
- lowy_int = highy_int;
- lowy_float = highy_float;
- highy_int += convy_int;
- highy_float += convy_float;
- if(highy_float > 1) {
- highy_float -= 1.0;
- highy_int++;
- }
+ totals[k] += *(const GLshort*)&swapbuf;
+ } else {
+ totals[k] += *(const GLshort*)temp_index;
+ }
+ }
+ temp += group_size;
+ }
+ temp0 += ysize;
+ }
+
+ outindex = (j + (i * widthout)) * components;
+ for (k = 0; k < components; k++) {
+ dataout[outindex + k] = totals[k]/area;
+ /*printf("totals[%d] = %f\n", k, totals[k]);*/
+ }
+ lowx_int = highx_int;
+ lowx_float = highx_float;
+ highx_int += convx_int;
+ highx_float += convx_float;
+ if(highx_float > 1) {
+ highx_float -= 1.0;
+ highx_int++;
+ }
+ }
+ lowy_int = highy_int;
+ lowy_float = highy_float;
+ highy_int += convy_int;
+ highy_float += convy_float;
+ if(highy_float > 1) {
+ highy_float -= 1.0;
+ highy_int++;
+ }
}
}
static void scale_internal_uint(GLint components, GLint widthin,
- GLint heightin, const GLuint *datain,
- GLint widthout, GLint heightout,
- GLuint *dataout, GLint element_size,
- GLint ysize, GLint group_size,
- GLint myswap_bytes)
+ GLint heightin, const GLuint *datain,
+ GLint widthout, GLint heightout,
+ GLuint *dataout, GLint element_size,
+ GLint ysize, GLint group_size,
+ GLint myswap_bytes)
{
float convx;
float convy;
const char *left, *right;
if (widthin == widthout*2 && heightin == heightout*2) {
- halveImage_uint(components, widthin, heightin,
- (const GLuint *)datain, (GLuint *)dataout,
- element_size, ysize, group_size, myswap_bytes);
- return;
+ halveImage_uint(components, widthin, heightin,
+ (const GLuint *)datain, (GLuint *)dataout,
+ element_size, ysize, group_size, myswap_bytes);
+ return;
}
convy = (float) heightin/heightout;
convx = (float) widthin/widthout;
highy_int = convy_int;
highy_float = convy_float;
- for (i = 0; i < heightout; i++) {
- lowx_int = 0;
- lowx_float = 0;
- highx_int = convx_int;
- highx_float = convx_float;
-
- for (j = 0; j < widthout; j++) {
- /*
- ** Ok, now apply box filter to box that goes from (lowx, lowy)
- ** to (highx, highy) on input data into this pixel on output
- ** data.
- */
- totals[0] = totals[1] = totals[2] = totals[3] = 0.0;
-
- /* calculate the value for pixels in the 1st row */
- xindex = lowx_int*group_size;
- if((highy_int>lowy_int) && (highx_int>lowx_int)) {
-
- y_percent = 1-lowy_float;
- temp = (const char *)datain + xindex + lowy_int * ysize;
- percent = y_percent * (1-lowx_float);
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] += __GLU_SWAP_4_BYTES(temp_index) * percent;
- } else {
- totals[k] += *(const GLuint*)temp_index * percent;
- }
- }
- left = temp;
- for(l = lowx_int+1; l < highx_int; l++) {
- temp += group_size;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] +=
- __GLU_SWAP_4_BYTES(temp_index) * y_percent;
- } else {
- totals[k] += *(const GLuint*)temp_index * y_percent;
- }
- }
- }
- temp += group_size;
- right = temp;
- percent = y_percent * highx_float;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] += __GLU_SWAP_4_BYTES(temp_index) * percent;
- } else {
- totals[k] += *(const GLuint*)temp_index * percent;
- }
- }
-
- /* calculate the value for pixels in the last row */
- y_percent = highy_float;
- percent = y_percent * (1-lowx_float);
- temp = (const char *)datain + xindex + highy_int * ysize;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] += __GLU_SWAP_4_BYTES(temp_index) * percent;
- } else {
- totals[k] += *(const GLuint*)temp_index * percent;
- }
- }
- for(l = lowx_int+1; l < highx_int; l++) {
- temp += group_size;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] +=
- __GLU_SWAP_4_BYTES(temp_index) * y_percent;
- } else {
- totals[k] += *(const GLuint*)temp_index * y_percent;
- }
- }
- }
- temp += group_size;
- percent = y_percent * highx_float;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] += __GLU_SWAP_4_BYTES(temp_index) * percent;
- } else {
- totals[k] += *(const GLuint*)temp_index * percent;
- }
- }
-
- /* calculate the value for pixels in the 1st and last column */
- for(m = lowy_int+1; m < highy_int; m++) {
- left += ysize;
- right += ysize;
- for (k = 0; k < components;
- k++, left += element_size, right += element_size) {
- if (myswap_bytes) {
- totals[k] +=
- __GLU_SWAP_4_BYTES(left) * (1-lowx_float)
- + __GLU_SWAP_4_BYTES(right) * highx_float;
- } else {
- totals[k] += *(const GLuint*)left * (1-lowx_float)
- + *(const GLuint*)right * highx_float;
- }
- }
- }
- } else if (highy_int > lowy_int) {
- x_percent = highx_float - lowx_float;
- percent = (1-lowy_float)*x_percent;
- temp = (const char *)datain + xindex + lowy_int*ysize;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] += __GLU_SWAP_4_BYTES(temp_index) * percent;
- } else {
- totals[k] += *(const GLuint*)temp_index * percent;
- }
- }
- for(m = lowy_int+1; m < highy_int; m++) {
- temp += ysize;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] +=
- __GLU_SWAP_4_BYTES(temp_index) * x_percent;
- } else {
- totals[k] += *(const GLuint*)temp_index * x_percent;
- }
- }
- }
- percent = x_percent * highy_float;
- temp += ysize;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] += __GLU_SWAP_4_BYTES(temp_index) * percent;
- } else {
- totals[k] += *(const GLuint*)temp_index * percent;
- }
- }
- } else if (highx_int > lowx_int) {
- y_percent = highy_float - lowy_float;
- percent = (1-lowx_float)*y_percent;
-
- temp = (const char *)datain + xindex + lowy_int*ysize;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] += __GLU_SWAP_4_BYTES(temp_index) * percent;
- } else {
- totals[k] += *(const GLuint*)temp_index * percent;
- }
- }
- for (l = lowx_int+1; l < highx_int; l++) {
- temp += group_size;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] +=
- __GLU_SWAP_4_BYTES(temp_index) * y_percent;
- } else {
- totals[k] += *(const GLuint*)temp_index * y_percent;
- }
- }
- }
- temp += group_size;
- percent = y_percent * highx_float;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] += __GLU_SWAP_4_BYTES(temp_index) * percent;
- } else {
- totals[k] += *(const GLuint*)temp_index * percent;
- }
- }
- } else {
- percent = (highy_float-lowy_float)*(highx_float-lowx_float);
- temp = (const char *)datain + xindex + lowy_int * ysize;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] += __GLU_SWAP_4_BYTES(temp_index) * percent;
- } else {
- totals[k] += *(const GLuint*)temp_index * percent;
- }
- }
- }
-
- /* this is for the pixels in the body */
- temp0 = (const char *)datain + xindex + group_size +
+ for (i = 0; i < heightout; i++) {
+ /* Clamp here to be sure we don't read beyond input buffer. */
+ if (highy_int >= heightin)
+ highy_int = heightin - 1;
+ lowx_int = 0;
+ lowx_float = 0;
+ highx_int = convx_int;
+ highx_float = convx_float;
+
+ for (j = 0; j < widthout; j++) {
+ /*
+ ** Ok, now apply box filter to box that goes from (lowx, lowy)
+ ** to (highx, highy) on input data into this pixel on output
+ ** data.
+ */
+ totals[0] = totals[1] = totals[2] = totals[3] = 0.0;
+
+ /* calculate the value for pixels in the 1st row */
+ xindex = lowx_int*group_size;
+ if((highy_int>lowy_int) && (highx_int>lowx_int)) {
+
+ y_percent = 1-lowy_float;
+ temp = (const char *)datain + xindex + lowy_int * ysize;
+ percent = y_percent * (1-lowx_float);
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ totals[k] += __GLU_SWAP_4_BYTES(temp_index) * percent;
+ } else {
+ totals[k] += *(const GLuint*)temp_index * percent;
+ }
+ }
+ left = temp;
+ for(l = lowx_int+1; l < highx_int; l++) {
+ temp += group_size;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ totals[k] +=
+ __GLU_SWAP_4_BYTES(temp_index) * y_percent;
+ } else {
+ totals[k] += *(const GLuint*)temp_index * y_percent;
+ }
+ }
+ }
+ temp += group_size;
+ right = temp;
+ percent = y_percent * highx_float;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ totals[k] += __GLU_SWAP_4_BYTES(temp_index) * percent;
+ } else {
+ totals[k] += *(const GLuint*)temp_index * percent;
+ }
+ }
+
+ /* calculate the value for pixels in the last row */
+ y_percent = highy_float;
+ percent = y_percent * (1-lowx_float);
+ temp = (const char *)datain + xindex + highy_int * ysize;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ totals[k] += __GLU_SWAP_4_BYTES(temp_index) * percent;
+ } else {
+ totals[k] += *(const GLuint*)temp_index * percent;
+ }
+ }
+ for(l = lowx_int+1; l < highx_int; l++) {
+ temp += group_size;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ totals[k] +=
+ __GLU_SWAP_4_BYTES(temp_index) * y_percent;
+ } else {
+ totals[k] += *(const GLuint*)temp_index * y_percent;
+ }
+ }
+ }
+ temp += group_size;
+ percent = y_percent * highx_float;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ totals[k] += __GLU_SWAP_4_BYTES(temp_index) * percent;
+ } else {
+ totals[k] += *(const GLuint*)temp_index * percent;
+ }
+ }
+
+ /* calculate the value for pixels in the 1st and last column */
+ for(m = lowy_int+1; m < highy_int; m++) {
+ left += ysize;
+ right += ysize;
+ for (k = 0; k < components;
+ k++, left += element_size, right += element_size) {
+ if (myswap_bytes) {
+ totals[k] +=
+ __GLU_SWAP_4_BYTES(left) * (1-lowx_float)
+ + __GLU_SWAP_4_BYTES(right) * highx_float;
+ } else {
+ totals[k] += *(const GLuint*)left * (1-lowx_float)
+ + *(const GLuint*)right * highx_float;
+ }
+ }
+ }
+ } else if (highy_int > lowy_int) {
+ x_percent = highx_float - lowx_float;
+ percent = (1-lowy_float)*x_percent;
+ temp = (const char *)datain + xindex + lowy_int*ysize;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ totals[k] += __GLU_SWAP_4_BYTES(temp_index) * percent;
+ } else {
+ totals[k] += *(const GLuint*)temp_index * percent;
+ }
+ }
+ for(m = lowy_int+1; m < highy_int; m++) {
+ temp += ysize;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ totals[k] +=
+ __GLU_SWAP_4_BYTES(temp_index) * x_percent;
+ } else {
+ totals[k] += *(const GLuint*)temp_index * x_percent;
+ }
+ }
+ }
+ percent = x_percent * highy_float;
+ temp += ysize;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ totals[k] += __GLU_SWAP_4_BYTES(temp_index) * percent;
+ } else {
+ totals[k] += *(const GLuint*)temp_index * percent;
+ }
+ }
+ } else if (highx_int > lowx_int) {
+ y_percent = highy_float - lowy_float;
+ percent = (1-lowx_float)*y_percent;
+
+ temp = (const char *)datain + xindex + lowy_int*ysize;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ totals[k] += __GLU_SWAP_4_BYTES(temp_index) * percent;
+ } else {
+ totals[k] += *(const GLuint*)temp_index * percent;
+ }
+ }
+ for (l = lowx_int+1; l < highx_int; l++) {
+ temp += group_size;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ totals[k] +=
+ __GLU_SWAP_4_BYTES(temp_index) * y_percent;
+ } else {
+ totals[k] += *(const GLuint*)temp_index * y_percent;
+ }
+ }
+ }
+ temp += group_size;
+ percent = y_percent * highx_float;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ totals[k] += __GLU_SWAP_4_BYTES(temp_index) * percent;
+ } else {
+ totals[k] += *(const GLuint*)temp_index * percent;
+ }
+ }
+ } else {
+ percent = (highy_float-lowy_float)*(highx_float-lowx_float);
+ temp = (const char *)datain + xindex + lowy_int * ysize;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ totals[k] += __GLU_SWAP_4_BYTES(temp_index) * percent;
+ } else {
+ totals[k] += *(const GLuint*)temp_index * percent;
+ }
+ }
+ }
+
+ /* this is for the pixels in the body */
+ temp0 = (const char *)datain + xindex + group_size +
+ (lowy_int+1)*ysize;
+ for (m = lowy_int+1; m < highy_int; m++) {
+ temp = temp0;
+ for(l = lowx_int+1; l < highx_int; l++) {
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ totals[k] += __GLU_SWAP_4_BYTES(temp_index);
+ } else {
+ totals[k] += *(const GLuint*)temp_index;
+ }
+ }
+ temp += group_size;
+ }
+ temp0 += ysize;
+ }
+
+ outindex = (j + (i * widthout)) * components;
+ for (k = 0; k < components; k++) {
+ /* clamp at UINT_MAX */
+ float value= totals[k]/area;
+ if (value >= (float) UINT_MAX) { /* need '=' */
+ dataout[outindex + k] = UINT_MAX;
+ }
+ else dataout[outindex + k] = value;
+ }
+ lowx_int = highx_int;
+ lowx_float = highx_float;
+ highx_int += convx_int;
+ highx_float += convx_float;
+ if(highx_float > 1) {
+ highx_float -= 1.0;
+ highx_int++;
+ }
+ }
+ lowy_int = highy_int;
+ lowy_float = highy_float;
+ highy_int += convy_int;
+ highy_float += convy_float;
+ if(highy_float > 1) {
+ highy_float -= 1.0;
+ highy_int++;
+ }
+ }
+}
+
+
+
+static void scale_internal_int(GLint components, GLint widthin,
+ GLint heightin, const GLint *datain,
+ GLint widthout, GLint heightout,
+ GLint *dataout, GLint element_size,
+ GLint ysize, GLint group_size,
+ GLint myswap_bytes)
+{
+ float convx;
+ float convy;
+ float percent;
+ /* Max components in a format is 4, so... */
+ float totals[4];
+ float area;
+ int i,j,k,xindex;
+
+ const char *temp, *temp0;
+ const char *temp_index;
+ int outindex;
+
+ int lowx_int, highx_int, lowy_int, highy_int;
+ float x_percent, y_percent;
+ float lowx_float, highx_float, lowy_float, highy_float;
+ float convy_float, convx_float;
+ int convy_int, convx_int;
+ int l, m;
+ const char *left, *right;
+
+ GLuint swapbuf; /* unsigned buffer */
+
+ if (widthin == widthout*2 && heightin == heightout*2) {
+ halveImage_int(components, widthin, heightin,
+ (const GLint *)datain, (GLint *)dataout,
+ element_size, ysize, group_size, myswap_bytes);
+ return;
+ }
+ convy = (float) heightin/heightout;
+ convx = (float) widthin/widthout;
+ convy_int = floor(convy);
+ convy_float = convy - convy_int;
+ convx_int = floor(convx);
+ convx_float = convx - convx_int;
+
+ area = convx * convy;
+
+ lowy_int = 0;
+ lowy_float = 0;
+ highy_int = convy_int;
+ highy_float = convy_float;
+
+ for (i = 0; i < heightout; i++) {
+ /* Clamp here to be sure we don't read beyond input buffer. */
+ if (highy_int >= heightin)
+ highy_int = heightin - 1;
+ lowx_int = 0;
+ lowx_float = 0;
+ highx_int = convx_int;
+ highx_float = convx_float;
+
+ for (j = 0; j < widthout; j++) {
+ /*
+ ** Ok, now apply box filter to box that goes from (lowx, lowy)
+ ** to (highx, highy) on input data into this pixel on output
+ ** data.
+ */
+ totals[0] = totals[1] = totals[2] = totals[3] = 0.0;
+
+ /* calculate the value for pixels in the 1st row */
+ xindex = lowx_int*group_size;
+ if((highy_int>lowy_int) && (highx_int>lowx_int)) {
+
+ y_percent = 1-lowy_float;
+ temp = (const char *)datain + xindex + lowy_int * ysize;
+ percent = y_percent * (1-lowx_float);
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf = __GLU_SWAP_4_BYTES(temp_index);
+ totals[k] += *(const GLint*)&swapbuf * percent;
+ } else {
+ totals[k] += *(const GLint*)temp_index * percent;
+ }
+ }
+ left = temp;
+ for(l = lowx_int+1; l < highx_int; l++) {
+ temp += group_size;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf = __GLU_SWAP_4_BYTES(temp_index);
+ totals[k] += *(const GLint*)&swapbuf * y_percent;
+ } else {
+ totals[k] += *(const GLint*)temp_index * y_percent;
+ }
+ }
+ }
+ temp += group_size;
+ right = temp;
+ percent = y_percent * highx_float;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf = __GLU_SWAP_4_BYTES(temp_index);
+ totals[k] += *(const GLint*)&swapbuf * percent;
+ } else {
+ totals[k] += *(const GLint*)temp_index * percent;
+ }
+ }
+
+ /* calculate the value for pixels in the last row */
+ y_percent = highy_float;
+ percent = y_percent * (1-lowx_float);
+ temp = (const char *)datain + xindex + highy_int * ysize;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf = __GLU_SWAP_4_BYTES(temp_index);
+ totals[k] += *(const GLint*)&swapbuf * percent;
+ } else {
+ totals[k] += *(const GLint*)temp_index * percent;
+ }
+ }
+ for(l = lowx_int+1; l < highx_int; l++) {
+ temp += group_size;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf = __GLU_SWAP_4_BYTES(temp_index);
+ totals[k] += *(const GLint*)&swapbuf * y_percent;
+ } else {
+ totals[k] += *(const GLint*)temp_index * y_percent;
+ }
+ }
+ }
+ temp += group_size;
+ percent = y_percent * highx_float;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf = __GLU_SWAP_4_BYTES(temp_index);
+ totals[k] += *(const GLint*)&swapbuf * percent;
+ } else {
+ totals[k] += *(const GLint*)temp_index * percent;
+ }
+ }
+
+ /* calculate the value for pixels in the 1st and last column */
+ for(m = lowy_int+1; m < highy_int; m++) {
+ left += ysize;
+ right += ysize;
+ for (k = 0; k < components;
+ k++, left += element_size, right += element_size) {
+ if (myswap_bytes) {
+ swapbuf = __GLU_SWAP_4_BYTES(left);
+ totals[k] += *(const GLint*)&swapbuf * (1-lowx_float);
+ swapbuf = __GLU_SWAP_4_BYTES(right);
+ totals[k] += *(const GLint*)&swapbuf * highx_float;
+ } else {
+ totals[k] += *(const GLint*)left * (1-lowx_float)
+ + *(const GLint*)right * highx_float;
+ }
+ }
+ }
+ } else if (highy_int > lowy_int) {
+ x_percent = highx_float - lowx_float;
+ percent = (1-lowy_float)*x_percent;
+ temp = (const char *)datain + xindex + lowy_int*ysize;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf = __GLU_SWAP_4_BYTES(temp_index);
+ totals[k] += *(const GLint*)&swapbuf * percent;
+ } else {
+ totals[k] += *(const GLint*)temp_index * percent;
+ }
+ }
+ for(m = lowy_int+1; m < highy_int; m++) {
+ temp += ysize;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf = __GLU_SWAP_4_BYTES(temp_index);
+ totals[k] += *(const GLint*)&swapbuf * x_percent;
+ } else {
+ totals[k] += *(const GLint*)temp_index * x_percent;
+ }
+ }
+ }
+ percent = x_percent * highy_float;
+ temp += ysize;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf = __GLU_SWAP_4_BYTES(temp_index);
+ totals[k] += *(const GLint*)&swapbuf * percent;
+ } else {
+ totals[k] += *(const GLint*)temp_index * percent;
+ }
+ }
+ } else if (highx_int > lowx_int) {
+ y_percent = highy_float - lowy_float;
+ percent = (1-lowx_float)*y_percent;
+
+ temp = (const char *)datain + xindex + lowy_int*ysize;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf = __GLU_SWAP_4_BYTES(temp_index);
+ totals[k] += *(const GLint*)&swapbuf * percent;
+ } else {
+ totals[k] += *(const GLint*)temp_index * percent;
+ }
+ }
+ for (l = lowx_int+1; l < highx_int; l++) {
+ temp += group_size;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf = __GLU_SWAP_4_BYTES(temp_index);
+ totals[k] += *(const GLint*)&swapbuf * y_percent;
+ } else {
+ totals[k] += *(const GLint*)temp_index * y_percent;
+ }
+ }
+ }
+ temp += group_size;
+ percent = y_percent * highx_float;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf = __GLU_SWAP_4_BYTES(temp_index);
+ totals[k] += *(const GLint*)&swapbuf * percent;
+ } else {
+ totals[k] += *(const GLint*)temp_index * percent;
+ }
+ }
+ } else {
+ percent = (highy_float-lowy_float)*(highx_float-lowx_float);
+ temp = (const char *)datain + xindex + lowy_int * ysize;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf = __GLU_SWAP_4_BYTES(temp_index);
+ totals[k] += *(const GLint*)&swapbuf * percent;
+ } else {
+ totals[k] += *(const GLint*)temp_index * percent;
+ }
+ }
+ }
+
+ /* this is for the pixels in the body */
+ temp0 = (const char *)datain + xindex + group_size +
(lowy_int+1)*ysize;
- for (m = lowy_int+1; m < highy_int; m++) {
- temp = temp0;
- for(l = lowx_int+1; l < highx_int; l++) {
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] += __GLU_SWAP_4_BYTES(temp_index);
- } else {
- totals[k] += *(const GLuint*)temp_index;
- }
- }
- temp += group_size;
- }
- temp0 += ysize;
- }
-
- outindex = (j + (i * widthout)) * components;
- for (k = 0; k < components; k++) {
- /* clamp at UINT_MAX */
- float value= totals[k]/area;
- if (value >= (float) UINT_MAX) { /* need '=' */
- dataout[outindex + k] = UINT_MAX;
+ for (m = lowy_int+1; m < highy_int; m++) {
+ temp = temp0;
+ for(l = lowx_int+1; l < highx_int; l++) {
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf = __GLU_SWAP_4_BYTES(temp_index);
+ totals[k] += *(const GLint*)&swapbuf;
+ } else {
+ totals[k] += *(const GLint*)temp_index;
+ }
+ }
+ temp += group_size;
}
- else dataout[outindex + k] = value;
+ temp0 += ysize;
+ }
+
+ outindex = (j + (i * widthout)) * components;
+ for (k = 0; k < components; k++) {
+ dataout[outindex + k] = totals[k]/area;
+ /*printf("totals[%d] = %f\n", k, totals[k]);*/
+ }
+ lowx_int = highx_int;
+ lowx_float = highx_float;
+ highx_int += convx_int;
+ highx_float += convx_float;
+ if(highx_float > 1) {
+ highx_float -= 1.0;
+ highx_int++;
}
- lowx_int = highx_int;
- lowx_float = highx_float;
- highx_int += convx_int;
- highx_float += convx_float;
- if(highx_float > 1) {
- highx_float -= 1.0;
- highx_int++;
- }
- }
- lowy_int = highy_int;
- lowy_float = highy_float;
- highy_int += convy_int;
- highy_float += convy_float;
- if(highy_float > 1) {
- highy_float -= 1.0;
- highy_int++;
- }
+ }
+ lowy_int = highy_int;
+ lowy_float = highy_float;
+ highy_int += convy_int;
+ highy_float += convy_float;
+ if(highy_float > 1) {
+ highy_float -= 1.0;
+ highy_int++;
+ }
}
}
-static void scale_internal_int(GLint components, GLint widthin,
- GLint heightin, const GLint *datain,
- GLint widthout, GLint heightout,
- GLint *dataout, GLint element_size,
- GLint ysize, GLint group_size,
- GLint myswap_bytes)
+static void scale_internal_float(GLint components, GLint widthin,
+ GLint heightin, const GLfloat *datain,
+ GLint widthout, GLint heightout,
+ GLfloat *dataout, GLint element_size,
+ GLint ysize, GLint group_size,
+ GLint myswap_bytes)
{
float convx;
float convy;
int l, m;
const char *left, *right;
- GLuint swapbuf; /* unsigned buffer */
+ union { GLuint b; GLfloat f; } swapbuf;
if (widthin == widthout*2 && heightin == heightout*2) {
- halveImage_int(components, widthin, heightin,
- (const GLint *)datain, (GLint *)dataout,
- element_size, ysize, group_size, myswap_bytes);
- return;
+ halveImage_float(components, widthin, heightin,
+ (const GLfloat *)datain, (GLfloat *)dataout,
+ element_size, ysize, group_size, myswap_bytes);
+ return;
}
convy = (float) heightin/heightout;
convx = (float) widthin/widthout;
highy_float = convy_float;
for (i = 0; i < heightout; i++) {
- lowx_int = 0;
- lowx_float = 0;
- highx_int = convx_int;
- highx_float = convx_float;
-
- for (j = 0; j < widthout; j++) {
- /*
- ** Ok, now apply box filter to box that goes from (lowx, lowy)
- ** to (highx, highy) on input data into this pixel on output
- ** data.
- */
- totals[0] = totals[1] = totals[2] = totals[3] = 0.0;
-
- /* calculate the value for pixels in the 1st row */
- xindex = lowx_int*group_size;
- if((highy_int>lowy_int) && (highx_int>lowx_int)) {
-
- y_percent = 1-lowy_float;
- temp = (const char *)datain + xindex + lowy_int * ysize;
- percent = y_percent * (1-lowx_float);
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_4_BYTES(temp_index);
- totals[k] += *(const GLint*)&swapbuf * percent;
- } else {
- totals[k] += *(const GLint*)temp_index * percent;
- }
- }
- left = temp;
- for(l = lowx_int+1; l < highx_int; l++) {
- temp += group_size;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_4_BYTES(temp_index);
- totals[k] += *(const GLint*)&swapbuf * y_percent;
- } else {
- totals[k] += *(const GLint*)temp_index * y_percent;
- }
- }
- }
- temp += group_size;
- right = temp;
- percent = y_percent * highx_float;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_4_BYTES(temp_index);
- totals[k] += *(const GLint*)&swapbuf * percent;
- } else {
- totals[k] += *(const GLint*)temp_index * percent;
- }
- }
-
- /* calculate the value for pixels in the last row */
- y_percent = highy_float;
- percent = y_percent * (1-lowx_float);
- temp = (const char *)datain + xindex + highy_int * ysize;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_4_BYTES(temp_index);
- totals[k] += *(const GLint*)&swapbuf * percent;
- } else {
- totals[k] += *(const GLint*)temp_index * percent;
- }
- }
- for(l = lowx_int+1; l < highx_int; l++) {
- temp += group_size;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_4_BYTES(temp_index);
- totals[k] += *(const GLint*)&swapbuf * y_percent;
- } else {
- totals[k] += *(const GLint*)temp_index * y_percent;
- }
- }
- }
- temp += group_size;
- percent = y_percent * highx_float;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_4_BYTES(temp_index);
- totals[k] += *(const GLint*)&swapbuf * percent;
- } else {
- totals[k] += *(const GLint*)temp_index * percent;
- }
- }
-
- /* calculate the value for pixels in the 1st and last column */
- for(m = lowy_int+1; m < highy_int; m++) {
- left += ysize;
- right += ysize;
- for (k = 0; k < components;
- k++, left += element_size, right += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_4_BYTES(left);
- totals[k] += *(const GLint*)&swapbuf * (1-lowx_float);
- swapbuf = __GLU_SWAP_4_BYTES(right);
- totals[k] += *(const GLint*)&swapbuf * highx_float;
- } else {
- totals[k] += *(const GLint*)left * (1-lowx_float)
- + *(const GLint*)right * highx_float;
- }
- }
- }
- } else if (highy_int > lowy_int) {
- x_percent = highx_float - lowx_float;
- percent = (1-lowy_float)*x_percent;
- temp = (const char *)datain + xindex + lowy_int*ysize;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_4_BYTES(temp_index);
- totals[k] += *(const GLint*)&swapbuf * percent;
- } else {
- totals[k] += *(const GLint*)temp_index * percent;
- }
- }
- for(m = lowy_int+1; m < highy_int; m++) {
- temp += ysize;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_4_BYTES(temp_index);
- totals[k] += *(const GLint*)&swapbuf * x_percent;
- } else {
- totals[k] += *(const GLint*)temp_index * x_percent;
- }
- }
- }
- percent = x_percent * highy_float;
- temp += ysize;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_4_BYTES(temp_index);
- totals[k] += *(const GLint*)&swapbuf * percent;
- } else {
- totals[k] += *(const GLint*)temp_index * percent;
- }
- }
- } else if (highx_int > lowx_int) {
- y_percent = highy_float - lowy_float;
- percent = (1-lowx_float)*y_percent;
-
- temp = (const char *)datain + xindex + lowy_int*ysize;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_4_BYTES(temp_index);
- totals[k] += *(const GLint*)&swapbuf * percent;
- } else {
- totals[k] += *(const GLint*)temp_index * percent;
- }
- }
- for (l = lowx_int+1; l < highx_int; l++) {
- temp += group_size;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_4_BYTES(temp_index);
- totals[k] += *(const GLint*)&swapbuf * y_percent;
- } else {
- totals[k] += *(const GLint*)temp_index * y_percent;
- }
- }
- }
- temp += group_size;
- percent = y_percent * highx_float;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_4_BYTES(temp_index);
- totals[k] += *(const GLint*)&swapbuf * percent;
- } else {
- totals[k] += *(const GLint*)temp_index * percent;
- }
- }
- } else {
- percent = (highy_float-lowy_float)*(highx_float-lowx_float);
- temp = (const char *)datain + xindex + lowy_int * ysize;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_4_BYTES(temp_index);
- totals[k] += *(const GLint*)&swapbuf * percent;
- } else {
- totals[k] += *(const GLint*)temp_index * percent;
- }
- }
- }
-
- /* this is for the pixels in the body */
- temp0 = (const char *)datain + xindex + group_size +
- (lowy_int+1)*ysize;
- for (m = lowy_int+1; m < highy_int; m++) {
- temp = temp0;
- for(l = lowx_int+1; l < highx_int; l++) {
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_4_BYTES(temp_index);
- totals[k] += *(const GLint*)&swapbuf;
- } else {
- totals[k] += *(const GLint*)temp_index;
- }
- }
- temp += group_size;
- }
- temp0 += ysize;
- }
-
- outindex = (j + (i * widthout)) * components;
- for (k = 0; k < components; k++) {
- dataout[outindex + k] = totals[k]/area;
- /*printf("totals[%d] = %f\n", k, totals[k]);*/
- }
- lowx_int = highx_int;
- lowx_float = highx_float;
- highx_int += convx_int;
- highx_float += convx_float;
- if(highx_float > 1) {
- highx_float -= 1.0;
- highx_int++;
- }
- }
- lowy_int = highy_int;
- lowy_float = highy_float;
- highy_int += convy_int;
- highy_float += convy_float;
- if(highy_float > 1) {
- highy_float -= 1.0;
- highy_int++;
- }
- }
-}
-
-
-
-static void scale_internal_float(GLint components, GLint widthin,
- GLint heightin, const GLfloat *datain,
- GLint widthout, GLint heightout,
- GLfloat *dataout, GLint element_size,
- GLint ysize, GLint group_size,
- GLint myswap_bytes)
-{
- float convx;
- float convy;
- float percent;
- /* Max components in a format is 4, so... */
- float totals[4];
- float area;
- int i,j,k,xindex;
+ /* Clamp here to be sure we don't read beyond input buffer. */
+ if (highy_int >= heightin)
+ highy_int = heightin - 1;
+ lowx_int = 0;
+ lowx_float = 0;
+ highx_int = convx_int;
+ highx_float = convx_float;
- const char *temp, *temp0;
- const char *temp_index;
- int outindex;
+ for (j = 0; j < widthout; j++) {
+ /*
+ ** Ok, now apply box filter to box that goes from (lowx, lowy)
+ ** to (highx, highy) on input data into this pixel on output
+ ** data.
+ */
+ totals[0] = totals[1] = totals[2] = totals[3] = 0.0;
- int lowx_int, highx_int, lowy_int, highy_int;
- float x_percent, y_percent;
- float lowx_float, highx_float, lowy_float, highy_float;
- float convy_float, convx_float;
- int convy_int, convx_int;
- int l, m;
- const char *left, *right;
+ /* calculate the value for pixels in the 1st row */
+ xindex = lowx_int*group_size;
+ if((highy_int>lowy_int) && (highx_int>lowx_int)) {
- GLuint swapbuf; /* unsigned buffer */
+ y_percent = 1-lowy_float;
+ temp = (const char *)datain + xindex + lowy_int * ysize;
+ percent = y_percent * (1-lowx_float);
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf.b = __GLU_SWAP_4_BYTES(temp_index);
+ totals[k] += swapbuf.f * percent;
+ } else {
+ totals[k] += *(const GLfloat*)temp_index * percent;
+ }
+ }
+ left = temp;
+ for(l = lowx_int+1; l < highx_int; l++) {
+ temp += group_size;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf.b = __GLU_SWAP_4_BYTES(temp_index);
+ totals[k] += swapbuf.f * y_percent;
+ } else {
+ totals[k] += *(const GLfloat*)temp_index * y_percent;
+ }
+ }
+ }
+ temp += group_size;
+ right = temp;
+ percent = y_percent * highx_float;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf.b = __GLU_SWAP_4_BYTES(temp_index);
+ totals[k] += swapbuf.f * percent;
+ } else {
+ totals[k] += *(const GLfloat*)temp_index * percent;
+ }
+ }
- if (widthin == widthout*2 && heightin == heightout*2) {
- halveImage_float(components, widthin, heightin,
- (const GLfloat *)datain, (GLfloat *)dataout,
- element_size, ysize, group_size, myswap_bytes);
- return;
- }
- convy = (float) heightin/heightout;
- convx = (float) widthin/widthout;
- convy_int = floor(convy);
- convy_float = convy - convy_int;
- convx_int = floor(convx);
- convx_float = convx - convx_int;
+ /* calculate the value for pixels in the last row */
+ y_percent = highy_float;
+ percent = y_percent * (1-lowx_float);
+ temp = (const char *)datain + xindex + highy_int * ysize;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf.b = __GLU_SWAP_4_BYTES(temp_index);
+ totals[k] += swapbuf.f * percent;
+ } else {
+ totals[k] += *(const GLfloat*)temp_index * percent;
+ }
+ }
+ for(l = lowx_int+1; l < highx_int; l++) {
+ temp += group_size;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf.b = __GLU_SWAP_4_BYTES(temp_index);
+ totals[k] += swapbuf.f * y_percent;
+ } else {
+ totals[k] += *(const GLfloat*)temp_index * y_percent;
+ }
+ }
+ }
+ temp += group_size;
+ percent = y_percent * highx_float;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf.b = __GLU_SWAP_4_BYTES(temp_index);
+ totals[k] += swapbuf.f * percent;
+ } else {
+ totals[k] += *(const GLfloat*)temp_index * percent;
+ }
+ }
- area = convx * convy;
+ /* calculate the value for pixels in the 1st and last column */
+ for(m = lowy_int+1; m < highy_int; m++) {
+ left += ysize;
+ right += ysize;
+ for (k = 0; k < components;
+ k++, left += element_size, right += element_size) {
+ if (myswap_bytes) {
+ swapbuf.b = __GLU_SWAP_4_BYTES(left);
+ totals[k] += swapbuf.f * (1-lowx_float);
+ swapbuf.b = __GLU_SWAP_4_BYTES(right);
+ totals[k] += swapbuf.f * highx_float;
+ } else {
+ totals[k] += *(const GLfloat*)left * (1-lowx_float)
+ + *(const GLfloat*)right * highx_float;
+ }
+ }
+ }
+ } else if (highy_int > lowy_int) {
+ x_percent = highx_float - lowx_float;
+ percent = (1-lowy_float)*x_percent;
+ temp = (const char *)datain + xindex + lowy_int*ysize;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf.b = __GLU_SWAP_4_BYTES(temp_index);
+ totals[k] += swapbuf.f * percent;
+ } else {
+ totals[k] += *(const GLfloat*)temp_index * percent;
+ }
+ }
+ for(m = lowy_int+1; m < highy_int; m++) {
+ temp += ysize;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf.b = __GLU_SWAP_4_BYTES(temp_index);
+ totals[k] += swapbuf.f * x_percent;
+ } else {
+ totals[k] += *(const GLfloat*)temp_index * x_percent;
+ }
+ }
+ }
+ percent = x_percent * highy_float;
+ temp += ysize;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf.b = __GLU_SWAP_4_BYTES(temp_index);
+ totals[k] += swapbuf.f * percent;
+ } else {
+ totals[k] += *(const GLfloat*)temp_index * percent;
+ }
+ }
+ } else if (highx_int > lowx_int) {
+ y_percent = highy_float - lowy_float;
+ percent = (1-lowx_float)*y_percent;
- lowy_int = 0;
- lowy_float = 0;
- highy_int = convy_int;
- highy_float = convy_float;
+ temp = (const char *)datain + xindex + lowy_int*ysize;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf.b = __GLU_SWAP_4_BYTES(temp_index);
+ totals[k] += swapbuf.f * percent;
+ } else {
+ totals[k] += *(const GLfloat*)temp_index * percent;
+ }
+ }
+ for (l = lowx_int+1; l < highx_int; l++) {
+ temp += group_size;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf.b = __GLU_SWAP_4_BYTES(temp_index);
+ totals[k] += swapbuf.f * y_percent;
+ } else {
+ totals[k] += *(const GLfloat*)temp_index * y_percent;
+ }
+ }
+ }
+ temp += group_size;
+ percent = y_percent * highx_float;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf.b = __GLU_SWAP_4_BYTES(temp_index);
+ totals[k] += swapbuf.f * percent;
+ } else {
+ totals[k] += *(const GLfloat*)temp_index * percent;
+ }
+ }
+ } else {
+ percent = (highy_float-lowy_float)*(highx_float-lowx_float);
+ temp = (const char *)datain + xindex + lowy_int * ysize;
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf.b = __GLU_SWAP_4_BYTES(temp_index);
+ totals[k] += swapbuf.f * percent;
+ } else {
+ totals[k] += *(const GLfloat*)temp_index * percent;
+ }
+ }
+ }
- for (i = 0; i < heightout; i++) {
- lowx_int = 0;
- lowx_float = 0;
- highx_int = convx_int;
- highx_float = convx_float;
-
- for (j = 0; j < widthout; j++) {
- /*
- ** Ok, now apply box filter to box that goes from (lowx, lowy)
- ** to (highx, highy) on input data into this pixel on output
- ** data.
- */
- totals[0] = totals[1] = totals[2] = totals[3] = 0.0;
-
- /* calculate the value for pixels in the 1st row */
- xindex = lowx_int*group_size;
- if((highy_int>lowy_int) && (highx_int>lowx_int)) {
-
- y_percent = 1-lowy_float;
- temp = (const char *)datain + xindex + lowy_int * ysize;
- percent = y_percent * (1-lowx_float);
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_4_BYTES(temp_index);
- totals[k] += *(const GLfloat*)&swapbuf * percent;
- } else {
- totals[k] += *(const GLfloat*)temp_index * percent;
- }
- }
- left = temp;
- for(l = lowx_int+1; l < highx_int; l++) {
- temp += group_size;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_4_BYTES(temp_index);
- totals[k] += *(const GLfloat*)&swapbuf * y_percent;
- } else {
- totals[k] += *(const GLfloat*)temp_index * y_percent;
- }
- }
- }
- temp += group_size;
- right = temp;
- percent = y_percent * highx_float;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_4_BYTES(temp_index);
- totals[k] += *(const GLfloat*)&swapbuf * percent;
- } else {
- totals[k] += *(const GLfloat*)temp_index * percent;
- }
- }
-
- /* calculate the value for pixels in the last row */
- y_percent = highy_float;
- percent = y_percent * (1-lowx_float);
- temp = (const char *)datain + xindex + highy_int * ysize;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_4_BYTES(temp_index);
- totals[k] += *(const GLfloat*)&swapbuf * percent;
- } else {
- totals[k] += *(const GLfloat*)temp_index * percent;
- }
- }
- for(l = lowx_int+1; l < highx_int; l++) {
- temp += group_size;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_4_BYTES(temp_index);
- totals[k] += *(const GLfloat*)&swapbuf * y_percent;
- } else {
- totals[k] += *(const GLfloat*)temp_index * y_percent;
- }
- }
- }
- temp += group_size;
- percent = y_percent * highx_float;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_4_BYTES(temp_index);
- totals[k] += *(const GLfloat*)&swapbuf * percent;
- } else {
- totals[k] += *(const GLfloat*)temp_index * percent;
- }
- }
-
- /* calculate the value for pixels in the 1st and last column */
- for(m = lowy_int+1; m < highy_int; m++) {
- left += ysize;
- right += ysize;
- for (k = 0; k < components;
- k++, left += element_size, right += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_4_BYTES(left);
- totals[k] += *(const GLfloat*)&swapbuf * (1-lowx_float);
- swapbuf = __GLU_SWAP_4_BYTES(right);
- totals[k] += *(const GLfloat*)&swapbuf * highx_float;
- } else {
- totals[k] += *(const GLfloat*)left * (1-lowx_float)
- + *(const GLfloat*)right * highx_float;
- }
- }
- }
- } else if (highy_int > lowy_int) {
- x_percent = highx_float - lowx_float;
- percent = (1-lowy_float)*x_percent;
- temp = (const char *)datain + xindex + lowy_int*ysize;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_4_BYTES(temp_index);
- totals[k] += *(const GLfloat*)&swapbuf * percent;
- } else {
- totals[k] += *(const GLfloat*)temp_index * percent;
- }
- }
- for(m = lowy_int+1; m < highy_int; m++) {
- temp += ysize;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_4_BYTES(temp_index);
- totals[k] += *(const GLfloat*)&swapbuf * x_percent;
- } else {
- totals[k] += *(const GLfloat*)temp_index * x_percent;
- }
- }
- }
- percent = x_percent * highy_float;
- temp += ysize;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_4_BYTES(temp_index);
- totals[k] += *(const GLfloat*)&swapbuf * percent;
- } else {
- totals[k] += *(const GLfloat*)temp_index * percent;
- }
- }
- } else if (highx_int > lowx_int) {
- y_percent = highy_float - lowy_float;
- percent = (1-lowx_float)*y_percent;
-
- temp = (const char *)datain + xindex + lowy_int*ysize;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_4_BYTES(temp_index);
- totals[k] += *(const GLfloat*)&swapbuf * percent;
- } else {
- totals[k] += *(const GLfloat*)temp_index * percent;
- }
- }
- for (l = lowx_int+1; l < highx_int; l++) {
- temp += group_size;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_4_BYTES(temp_index);
- totals[k] += *(const GLfloat*)&swapbuf * y_percent;
- } else {
- totals[k] += *(const GLfloat*)temp_index * y_percent;
- }
- }
- }
- temp += group_size;
- percent = y_percent * highx_float;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_4_BYTES(temp_index);
- totals[k] += *(const GLfloat*)&swapbuf * percent;
- } else {
- totals[k] += *(const GLfloat*)temp_index * percent;
- }
- }
- } else {
- percent = (highy_float-lowy_float)*(highx_float-lowx_float);
- temp = (const char *)datain + xindex + lowy_int * ysize;
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_4_BYTES(temp_index);
- totals[k] += *(const GLfloat*)&swapbuf * percent;
- } else {
- totals[k] += *(const GLfloat*)temp_index * percent;
- }
- }
- }
-
- /* this is for the pixels in the body */
- temp0 = (const char *)datain + xindex + group_size +
+ /* this is for the pixels in the body */
+ temp0 = (const char *)datain + xindex + group_size +
(lowy_int+1)*ysize;
- for (m = lowy_int+1; m < highy_int; m++) {
- temp = temp0;
- for(l = lowx_int+1; l < highx_int; l++) {
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- swapbuf = __GLU_SWAP_4_BYTES(temp_index);
- totals[k] += *(const GLfloat*)&swapbuf;
- } else {
- totals[k] += *(const GLfloat*)temp_index;
- }
- }
- temp += group_size;
- }
- temp0 += ysize;
- }
-
- outindex = (j + (i * widthout)) * components;
- for (k = 0; k < components; k++) {
- dataout[outindex + k] = totals[k]/area;
- /*printf("totals[%d] = %f\n", k, totals[k]);*/
- }
- lowx_int = highx_int;
- lowx_float = highx_float;
- highx_int += convx_int;
- highx_float += convx_float;
- if(highx_float > 1) {
- highx_float -= 1.0;
- highx_int++;
- }
- }
- lowy_int = highy_int;
- lowy_float = highy_float;
- highy_int += convy_int;
- highy_float += convy_float;
- if(highy_float > 1) {
- highy_float -= 1.0;
- highy_int++;
- }
+ for (m = lowy_int+1; m < highy_int; m++) {
+ temp = temp0;
+ for(l = lowx_int+1; l < highx_int; l++) {
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ swapbuf.b = __GLU_SWAP_4_BYTES(temp_index);
+ totals[k] += swapbuf.f;
+ } else {
+ totals[k] += *(const GLfloat*)temp_index;
+ }
+ }
+ temp += group_size;
+ }
+ temp0 += ysize;
+ }
+
+ outindex = (j + (i * widthout)) * components;
+ for (k = 0; k < components; k++) {
+ dataout[outindex + k] = totals[k]/area;
+ /*printf("totals[%d] = %f\n", k, totals[k]);*/
+ }
+ lowx_int = highx_int;
+ lowx_float = highx_float;
+ highx_int += convx_int;
+ highx_float += convx_float;
+ if(highx_float > 1) {
+ highx_float -= 1.0;
+ highx_int++;
+ }
+ }
+ lowy_int = highy_int;
+ lowy_float = highy_float;
+ highy_int += convy_int;
+ highy_float += convy_float;
+ if(highy_float > 1) {
+ highy_float -= 1.0;
+ highy_int++;
+ }
}
}
}
if (!isLegalFormatForPackedPixelType(format, type)) {
- return GLU_INVALID_OPERATION;
+ return GLU_INVALID_OPERATION;
}
return 0;
case GL_UNSIGNED_INT:
case GL_FLOAT:
case GL_UNSIGNED_BYTE_3_3_2:
- case GL_UNSIGNED_BYTE_2_3_3_REV:
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
case GL_UNSIGNED_SHORT_5_6_5:
case GL_UNSIGNED_SHORT_5_6_5_REV:
case GL_UNSIGNED_SHORT_4_4_4_4:
case GL_UNSIGNED_INT_8_8_8_8_REV:
case GL_UNSIGNED_INT_10_10_10_2:
case GL_UNSIGNED_INT_2_10_10_10_REV:
- return GL_TRUE;
+ return GL_TRUE;
default:
return GL_FALSE;
}
if (!isTypePackedPixel(type)) {
return GL_TRUE;
}
-
+
/* 3_3_2/2_3_3_REV & 5_6_5/5_6_5_REV are only compatible with RGB */
- if ((type == GL_UNSIGNED_BYTE_3_3_2 || type == GL_UNSIGNED_BYTE_2_3_3_REV||
+ if ((type == GL_UNSIGNED_BYTE_3_3_2 || type == GL_UNSIGNED_BYTE_2_3_3_REV||
type == GL_UNSIGNED_SHORT_5_6_5|| type == GL_UNSIGNED_SHORT_5_6_5_REV)
&& format != GL_RGB)
return GL_FALSE;
-
- /* 4_4_4_4/4_4_4_4_REV & 5_5_5_1/1_5_5_5_REV & 8_8_8_8/8_8_8_8_REV &
+
+ /* 4_4_4_4/4_4_4_4_REV & 5_5_5_1/1_5_5_5_REV & 8_8_8_8/8_8_8_8_REV &
* 10_10_10_2/2_10_10_10_REV are only compatible with RGBA, BGRA & ABGR_EXT.
*/
if ((type == GL_UNSIGNED_SHORT_4_4_4_4 ||
type == GL_UNSIGNED_INT_8_8_8_8_REV ||
type == GL_UNSIGNED_INT_10_10_10_2 ||
type == GL_UNSIGNED_INT_2_10_10_10_REV) &&
- (format != GL_RGBA &&
+ (format != GL_RGBA &&
format != GL_BGRA)) {
return GL_FALSE;
}
return GL_TRUE;
} /* isLegalFormatForPackedPixelType() */
-static GLboolean isLegalLevels(GLint userLevel,GLint baseLevel,GLint maxLevel,
+static GLboolean isLegalLevels(GLint userLevel,GLint baseLevel,GLint maxLevel,
GLint totalLevels)
{
if (baseLevel < 0 || baseLevel < userLevel || maxLevel < baseLevel ||
/* Given user requested texture size, determine if it fits. If it
* doesn't then halve both sides and make the determination again
- * until it does fit (for IR only).
+ * until it does fit (for IR only).
* Note that proxy textures are not implemented in RE* even though
- * they advertise the texture extension.
+ * they advertise the texture extension.
* Note that proxy textures are implemented but not according to spec in
* IMPACT*.
*/
-static void closestFit(GLenum target, GLint width, GLint height,
- GLint internalFormat, GLenum format, GLenum type,
+static void closestFit(GLenum target, GLint width, GLint height,
+ GLint internalFormat, GLenum format, GLenum type,
GLint *newWidth, GLint *newHeight)
{
/* Use proxy textures if OpenGL version is >= 1.1 */
if ( (strtod((const char *)glGetString(GL_VERSION),NULL) >= 1.1)
) {
GLint widthPowerOf2= nearestPower(width);
- GLint heightPowerOf2= nearestPower(height);
+ GLint heightPowerOf2= nearestPower(height);
GLint proxyWidth;
do {
/* compute level 1 width & height, clamping each at 1 */
GLint widthAtLevelOne= (widthPowerOf2 > 1) ?
- widthPowerOf2 >> 1 :
- widthPowerOf2;
+ widthPowerOf2 >> 1 :
+ widthPowerOf2;
GLint heightAtLevelOne= (heightPowerOf2 > 1) ?
- heightPowerOf2 >> 1 :
- heightPowerOf2;
+ heightPowerOf2 >> 1 :
+ heightPowerOf2;
GLenum proxyTarget;
assert(widthAtLevelOne > 0); assert(heightAtLevelOne > 0);
widthAtLevelOne,heightAtLevelOne,0,format,type,NULL);
} else
#if defined(GL_ARB_texture_cube_map)
- if ((target == GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB) ||
- (target == GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB) ||
- (target == GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB) ||
- (target == GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB) ||
- (target == GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB) ||
- (target == GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)) {
- proxyTarget = GL_PROXY_TEXTURE_CUBE_MAP_ARB;
- glTexImage2D(proxyTarget, 1, /* must be non-zero */
- internalFormat,
- widthAtLevelOne,heightAtLevelOne,0,format,type,NULL);
- } else
+ if ((target == GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB) ||
+ (target == GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB) ||
+ (target == GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB) ||
+ (target == GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB) ||
+ (target == GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB) ||
+ (target == GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)) {
+ proxyTarget = GL_PROXY_TEXTURE_CUBE_MAP_ARB;
+ glTexImage2D(proxyTarget, 1, /* must be non-zero */
+ internalFormat,
+ widthAtLevelOne,heightAtLevelOne,0,format,type,NULL);
+ } else
#endif /* GL_ARB_texture_cube_map */
- {
+ {
assert(target == GL_TEXTURE_1D || target == GL_PROXY_TEXTURE_1D);
proxyTarget = GL_PROXY_TEXTURE_1D;
glTexImage1D(proxyTarget, 1, /* must be non-zero */
* break out. This should never happen. But things
* happen. The disadvantage with this if-statement is
* that we will never be aware of when this happens
- * since it will silently branch out.
+ * since it will silently branch out.
*/
goto noProxyTextures;
}
widthPowerOf2= widthAtLevelOne;
heightPowerOf2= heightAtLevelOne;
- }
+ }
/* else it does fit */
} while (proxyWidth == 0);
/* loop must terminate! */
} /* closestFit() */
GLint GLAPIENTRY
-gluScaleImage(GLenum format, GLsizei widthin, GLsizei heightin,
- GLenum typein, const void *datain,
+gluScaleImage(GLenum format, GLsizei widthin, GLsizei heightin,
+ GLenum typein, const void *datain,
GLsizei widthout, GLsizei heightout, GLenum typeout,
void *dataout)
{
return GLU_INVALID_OPERATION;
}
beforeImage =
- malloc(image_size(widthin, heightin, format, GL_UNSIGNED_SHORT));
+ malloc(image_size(widthin, heightin, format, GL_UNSIGNED_SHORT));
afterImage =
malloc(image_size(widthout, heightout, format, GL_UNSIGNED_SHORT));
if (beforeImage == NULL || afterImage == NULL) {
+ free(beforeImage);
+ free(afterImage);
return GLU_OUT_OF_MEMORY;
}
fill_image(&psm,widthin, heightin, format, typein, is_index(format),
datain, beforeImage);
components = elements_per_group(format, 0);
- scale_internal(components, widthin, heightin, beforeImage,
+ scale_internal(components, widthin, heightin, beforeImage,
widthout, heightout, afterImage);
- empty_image(&psm,widthout, heightout, format, typeout,
+ empty_image(&psm,widthout, heightout, format, typeout,
is_index(format), afterImage, dataout);
free((GLbyte *) beforeImage);
free((GLbyte *) afterImage);
int gluBuild1DMipmapLevelsCore(GLenum target, GLint internalFormat,
GLsizei width,
GLsizei widthPowerOf2,
- GLenum format, GLenum type,
+ GLenum format, GLenum type,
GLint userLevel, GLint baseLevel,GLint maxLevel,
const void *data)
{
retrieveStoreModes(&psm);
newImage = (GLushort *)
- malloc(image_size(width, 1, format, GL_UNSIGNED_SHORT));
+ malloc(image_size(width, 1, format, GL_UNSIGNED_SHORT));
newImage_width = width;
if (newImage == NULL) {
return GLU_OUT_OF_MEMORY;
if (newImage_width == newwidth) {
/* Use newImage for this level */
if (baseLevel <= level && level <= maxLevel) {
- glTexImage1D(target, level, internalFormat, newImage_width,
+ glTexImage1D(target, level, internalFormat, newImage_width,
0, format, GL_UNSIGNED_SHORT, (void *) newImage);
}
} else {
glPixelStorei(GL_UNPACK_SKIP_PIXELS,psm.unpack_skip_pixels);
glPixelStorei(GL_UNPACK_ROW_LENGTH, psm.unpack_row_length);
glPixelStorei(GL_UNPACK_SWAP_BYTES, psm.unpack_swap_bytes);
+ free(newImage);
return GLU_OUT_OF_MEMORY;
}
}
- scale_internal(cmpts, newImage_width, 1, newImage,
+ scale_internal(cmpts, newImage_width, 1, newImage,
newwidth, 1, otherImage);
/* Swap newImage and otherImage */
- imageTemp = otherImage;
+ imageTemp = otherImage;
otherImage = newImage;
newImage = imageTemp;
}
GLint GLAPIENTRY
-gluBuild1DMipmapLevels(GLenum target, GLint internalFormat,
+gluBuild1DMipmapLevels(GLenum target, GLint internalFormat,
GLsizei width,
- GLenum format, GLenum type,
+ GLenum format, GLenum type,
GLint userLevel, GLint baseLevel, GLint maxLevel,
const void *data)
{
levels = computeLog(width);
levels+= userLevel;
- if (!isLegalLevels(userLevel,baseLevel,maxLevel,levels))
+ if (!isLegalLevels(userLevel,baseLevel,maxLevel,levels))
return GLU_INVALID_VALUE;
- return gluBuild1DMipmapLevelsCore(target, internalFormat,
+ return gluBuild1DMipmapLevelsCore(target, internalFormat,
width,
- width,format, type,
+ width,format, type,
userLevel, baseLevel, maxLevel,
data);
} /* gluBuild1DMipmapLevels() */
GLint GLAPIENTRY
gluBuild1DMipmaps(GLenum target, GLint internalFormat, GLsizei width,
- GLenum format, GLenum type,
+ GLenum format, GLenum type,
const void *data)
{
GLint widthPowerOf2;
static int bitmapBuild2DMipmaps(GLenum target, GLint internalFormat,
GLint width, GLint height, GLenum format,
- GLenum type, const void *data)
+ GLenum type, const void *data)
{
GLint newwidth, newheight;
GLint level, levels;
otherImage = NULL;
newImage = (GLushort *)
- malloc(image_size(width, height, format, GL_UNSIGNED_SHORT));
+ malloc(image_size(width, height, format, GL_UNSIGNED_SHORT));
newImage_width = width;
newImage_height = height;
if (newImage == NULL) {
- return GLU_OUT_OF_MEMORY;
+ return GLU_OUT_OF_MEMORY;
}
fill_image(&psm,width, height, format, type, is_index(format),
- data, newImage);
+ data, newImage);
cmpts = elements_per_group(format,type);
glPixelStorei(GL_UNPACK_ALIGNMENT, 2);
glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE);
for (level = 0; level <= levels; level++) {
- if (newImage_width == newwidth && newImage_height == newheight) { /* Use newImage for this level */
- glTexImage2D(target, level, internalFormat, newImage_width,
- newImage_height, 0, format, GL_UNSIGNED_SHORT,
- (void *) newImage);
- } else {
- if (otherImage == NULL) {
- memreq =
- image_size(newwidth, newheight, format, GL_UNSIGNED_SHORT);
- otherImage = (GLushort *) malloc(memreq);
- if (otherImage == NULL) {
- glPixelStorei(GL_UNPACK_ALIGNMENT, psm.unpack_alignment);
- glPixelStorei(GL_UNPACK_SKIP_ROWS, psm.unpack_skip_rows);
- glPixelStorei(GL_UNPACK_SKIP_PIXELS,psm.unpack_skip_pixels);
- glPixelStorei(GL_UNPACK_ROW_LENGTH, psm.unpack_row_length);
- glPixelStorei(GL_UNPACK_SWAP_BYTES, psm.unpack_swap_bytes);
- return GLU_OUT_OF_MEMORY;
- }
- }
- scale_internal(cmpts, newImage_width, newImage_height, newImage,
- newwidth, newheight, otherImage);
- /* Swap newImage and otherImage */
- imageTemp = otherImage;
- otherImage = newImage;
- newImage = imageTemp;
-
- newImage_width = newwidth;
- newImage_height = newheight;
- glTexImage2D(target, level, internalFormat, newImage_width,
- newImage_height, 0, format, GL_UNSIGNED_SHORT,
- (void *) newImage);
- }
- if (newwidth > 1) newwidth /= 2;
- if (newheight > 1) newheight /= 2;
+ if (newImage_width == newwidth && newImage_height == newheight) { /* Use newImage for this level */
+ glTexImage2D(target, level, internalFormat, newImage_width,
+ newImage_height, 0, format, GL_UNSIGNED_SHORT,
+ (void *) newImage);
+ } else {
+ if (otherImage == NULL) {
+ memreq =
+ image_size(newwidth, newheight, format, GL_UNSIGNED_SHORT);
+ otherImage = (GLushort *) malloc(memreq);
+ if (otherImage == NULL) {
+ glPixelStorei(GL_UNPACK_ALIGNMENT, psm.unpack_alignment);
+ glPixelStorei(GL_UNPACK_SKIP_ROWS, psm.unpack_skip_rows);
+ glPixelStorei(GL_UNPACK_SKIP_PIXELS,psm.unpack_skip_pixels);
+ glPixelStorei(GL_UNPACK_ROW_LENGTH, psm.unpack_row_length);
+ glPixelStorei(GL_UNPACK_SWAP_BYTES, psm.unpack_swap_bytes);
+ free(newImage);
+ return GLU_OUT_OF_MEMORY;
+ }
+ }
+ scale_internal(cmpts, newImage_width, newImage_height, newImage,
+ newwidth, newheight, otherImage);
+ /* Swap newImage and otherImage */
+ imageTemp = otherImage;
+ otherImage = newImage;
+ newImage = imageTemp;
+
+ newImage_width = newwidth;
+ newImage_height = newheight;
+ glTexImage2D(target, level, internalFormat, newImage_width,
+ newImage_height, 0, format, GL_UNSIGNED_SHORT,
+ (void *) newImage);
+ }
+ if (newwidth > 1) newwidth /= 2;
+ if (newheight > 1) newheight /= 2;
}
glPixelStorei(GL_UNPACK_ALIGNMENT, psm.unpack_alignment);
glPixelStorei(GL_UNPACK_SKIP_ROWS, psm.unpack_skip_rows);
free((GLbyte *) newImage);
if (otherImage) {
- free((GLbyte *) otherImage);
+ free((GLbyte *) otherImage);
}
return 0;
}
#define __GLU_INIT_SWAP_IMAGE void *tmpImage
#define __GLU_SWAP_IMAGE(a,b) tmpImage = a; a = b; b = tmpImage;
-static int gluBuild2DMipmapLevelsCore(GLenum target, GLint internalFormat,
- GLsizei width, GLsizei height,
- GLsizei widthPowerOf2,
- GLsizei heightPowerOf2,
- GLenum format, GLenum type,
- GLint userLevel,
+static int gluBuild2DMipmapLevelsCore(GLenum target, GLint internalFormat,
+ GLsizei width, GLsizei height,
+ GLsizei widthPowerOf2,
+ GLsizei heightPowerOf2,
+ GLenum format, GLenum type,
+ GLint userLevel,
GLint baseLevel,GLint maxLevel,
const void *data)
{
if(type == GL_BITMAP) {
return bitmapBuild2DMipmaps(target, internalFormat, width, height,
- format, type, data);
+ format, type, data);
}
srcImage = dstImage = NULL;
if (padding) {
rowsize += psm.unpack_alignment - padding;
}
- usersImage = (const GLubyte *) data + psm.unpack_skip_rows * rowsize +
+ usersImage = (const GLubyte *) data + psm.unpack_skip_rows * rowsize +
psm.unpack_skip_pixels * group_size;
glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
/* already power-of-two square */
if (width == newwidth && height == newheight) {
/* Use usersImage for level userLevel */
- if (baseLevel <= level && level <= maxLevel) {
- glTexImage2D(target, level, internalFormat, width,
+ if (baseLevel <= level && level <= maxLevel) {
+ glPixelStorei(GL_UNPACK_ROW_LENGTH, psm.unpack_row_length);
+ glTexImage2D(target, level, internalFormat, width,
height, 0, format, type,
usersImage);
}
+ glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
if(levels == 0) { /* we're done. clean up and return */
glPixelStorei(GL_UNPACK_ALIGNMENT, psm.unpack_alignment);
glPixelStorei(GL_UNPACK_SKIP_ROWS, psm.unpack_skip_rows);
if (nextWidth < 1) nextWidth= 1;
if (nextHeight < 1) nextHeight= 1;
memreq = image_size(nextWidth, nextHeight, format, type);
- }
+ }
switch(type) {
case GL_UNSIGNED_BYTE:
case GL_FLOAT:
dstImage = (GLfloat *)malloc(memreq);
break;
- case GL_UNSIGNED_BYTE_3_3_2:
- case GL_UNSIGNED_BYTE_2_3_3_REV:
+ case GL_UNSIGNED_BYTE_3_3_2:
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
dstImage = (GLubyte *)malloc(memreq);
break;
- case GL_UNSIGNED_SHORT_5_6_5:
- case GL_UNSIGNED_SHORT_5_6_5_REV:
- case GL_UNSIGNED_SHORT_4_4_4_4:
- case GL_UNSIGNED_SHORT_4_4_4_4_REV:
- case GL_UNSIGNED_SHORT_5_5_5_1:
- case GL_UNSIGNED_SHORT_1_5_5_5_REV:
+ case GL_UNSIGNED_SHORT_5_6_5:
+ case GL_UNSIGNED_SHORT_5_6_5_REV:
+ case GL_UNSIGNED_SHORT_4_4_4_4:
+ case GL_UNSIGNED_SHORT_4_4_4_4_REV:
+ case GL_UNSIGNED_SHORT_5_5_5_1:
+ case GL_UNSIGNED_SHORT_1_5_5_5_REV:
dstImage = (GLushort *)malloc(memreq);
- break;
- case GL_UNSIGNED_INT_8_8_8_8:
- case GL_UNSIGNED_INT_8_8_8_8_REV:
- case GL_UNSIGNED_INT_10_10_10_2:
- case GL_UNSIGNED_INT_2_10_10_10_REV:
- dstImage = (GLuint *)malloc(memreq);
+ break;
+ case GL_UNSIGNED_INT_8_8_8_8:
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
+ case GL_UNSIGNED_INT_10_10_10_2:
+ case GL_UNSIGNED_INT_2_10_10_10_REV:
+ dstImage = (GLuint *)malloc(memreq);
break;
default:
return GLU_INVALID_ENUM;
switch(type) {
case GL_UNSIGNED_BYTE:
halveImage_ubyte(cmpts, width, height,
- (const GLubyte *)usersImage, (GLubyte *)dstImage,
+ (const GLubyte *)usersImage, (GLubyte *)dstImage,
element_size, rowsize, group_size);
break;
case GL_BYTE:
halveImage_byte(cmpts, width, height,
- (const GLbyte *)usersImage, (GLbyte *)dstImage,
+ (const GLbyte *)usersImage, (GLbyte *)dstImage,
element_size, rowsize, group_size);
break;
case GL_UNSIGNED_SHORT:
break;
case GL_SHORT:
halveImage_short(cmpts, width, height,
- (const GLshort *)usersImage, (GLshort *)dstImage,
+ (const GLshort *)usersImage, (GLshort *)dstImage,
element_size, rowsize, group_size, myswap_bytes);
break;
case GL_UNSIGNED_INT:
halveImage_uint(cmpts, width, height,
- (const GLuint *)usersImage, (GLuint *)dstImage,
+ (const GLuint *)usersImage, (GLuint *)dstImage,
element_size, rowsize, group_size, myswap_bytes);
break;
case GL_INT:
halveImage_int(cmpts, width, height,
- (const GLint *)usersImage, (GLint *)dstImage,
+ (const GLint *)usersImage, (GLint *)dstImage,
element_size, rowsize, group_size, myswap_bytes);
break;
case GL_FLOAT:
(const GLfloat *)usersImage, (GLfloat *)dstImage,
element_size, rowsize, group_size, myswap_bytes);
break;
- case GL_UNSIGNED_BYTE_3_3_2:
+ case GL_UNSIGNED_BYTE_3_3_2:
assert(format == GL_RGB);
halveImagePackedPixel(3,extract332,shove332,
width,height,usersImage,dstImage,
element_size,rowsize,myswap_bytes);
break;
- case GL_UNSIGNED_BYTE_2_3_3_REV:
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
assert(format == GL_RGB);
halveImagePackedPixel(3,extract233rev,shove233rev,
width,height,usersImage,dstImage,
element_size,rowsize,myswap_bytes);
break;
- case GL_UNSIGNED_SHORT_5_6_5:
+ case GL_UNSIGNED_SHORT_5_6_5:
halveImagePackedPixel(3,extract565,shove565,
width,height,usersImage,dstImage,
element_size,rowsize,myswap_bytes);
- break;
- case GL_UNSIGNED_SHORT_5_6_5_REV:
+ break;
+ case GL_UNSIGNED_SHORT_5_6_5_REV:
halveImagePackedPixel(3,extract565rev,shove565rev,
width,height,usersImage,dstImage,
element_size,rowsize,myswap_bytes);
- break;
- case GL_UNSIGNED_SHORT_4_4_4_4:
+ break;
+ case GL_UNSIGNED_SHORT_4_4_4_4:
halveImagePackedPixel(4,extract4444,shove4444,
width,height,usersImage,dstImage,
element_size,rowsize,myswap_bytes);
- break;
- case GL_UNSIGNED_SHORT_4_4_4_4_REV:
+ break;
+ case GL_UNSIGNED_SHORT_4_4_4_4_REV:
halveImagePackedPixel(4,extract4444rev,shove4444rev,
width,height,usersImage,dstImage,
element_size,rowsize,myswap_bytes);
- break;
- case GL_UNSIGNED_SHORT_5_5_5_1:
+ break;
+ case GL_UNSIGNED_SHORT_5_5_5_1:
halveImagePackedPixel(4,extract5551,shove5551,
width,height,usersImage,dstImage,
element_size,rowsize,myswap_bytes);
- break;
- case GL_UNSIGNED_SHORT_1_5_5_5_REV:
+ break;
+ case GL_UNSIGNED_SHORT_1_5_5_5_REV:
halveImagePackedPixel(4,extract1555rev,shove1555rev,
width,height,usersImage,dstImage,
element_size,rowsize,myswap_bytes);
- break;
- case GL_UNSIGNED_INT_8_8_8_8:
+ break;
+ case GL_UNSIGNED_INT_8_8_8_8:
halveImagePackedPixel(4,extract8888,shove8888,
width,height,usersImage,dstImage,
element_size,rowsize,myswap_bytes);
- break;
- case GL_UNSIGNED_INT_8_8_8_8_REV:
+ break;
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
halveImagePackedPixel(4,extract8888rev,shove8888rev,
width,height,usersImage,dstImage,
element_size,rowsize,myswap_bytes);
- break;
- case GL_UNSIGNED_INT_10_10_10_2:
+ break;
+ case GL_UNSIGNED_INT_10_10_10_2:
halveImagePackedPixel(4,extract1010102,shove1010102,
width,height,usersImage,dstImage,
element_size,rowsize,myswap_bytes);
- break;
- case GL_UNSIGNED_INT_2_10_10_10_REV:
+ break;
+ case GL_UNSIGNED_INT_2_10_10_10_REV:
halveImagePackedPixel(4,extract2101010rev,shove2101010rev,
width,height,usersImage,dstImage,
element_size,rowsize,myswap_bytes);
- break;
- default:
+ break;
+ default:
assert(0);
break;
}
newheight = height/2;
/* clamp to 1 */
if (newwidth < 1) newwidth= 1;
- if (newheight < 1) newheight= 1;
+ if (newheight < 1) newheight= 1;
myswap_bytes = 0;
rowsize = newwidth * group_size;
case GL_FLOAT:
dstImage = (GLfloat *)malloc(memreq);
break;
- case GL_UNSIGNED_BYTE_3_3_2:
- case GL_UNSIGNED_BYTE_2_3_3_REV:
+ case GL_UNSIGNED_BYTE_3_3_2:
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
dstImage = (GLubyte *)malloc(memreq);
break;
- case GL_UNSIGNED_SHORT_5_6_5:
- case GL_UNSIGNED_SHORT_5_6_5_REV:
- case GL_UNSIGNED_SHORT_4_4_4_4:
- case GL_UNSIGNED_SHORT_4_4_4_4_REV:
- case GL_UNSIGNED_SHORT_5_5_5_1:
- case GL_UNSIGNED_SHORT_1_5_5_5_REV:
+ case GL_UNSIGNED_SHORT_5_6_5:
+ case GL_UNSIGNED_SHORT_5_6_5_REV:
+ case GL_UNSIGNED_SHORT_4_4_4_4:
+ case GL_UNSIGNED_SHORT_4_4_4_4_REV:
+ case GL_UNSIGNED_SHORT_5_5_5_1:
+ case GL_UNSIGNED_SHORT_1_5_5_5_REV:
dstImage = (GLushort *)malloc(memreq);
break;
- case GL_UNSIGNED_INT_8_8_8_8:
- case GL_UNSIGNED_INT_8_8_8_8_REV:
- case GL_UNSIGNED_INT_10_10_10_2:
- case GL_UNSIGNED_INT_2_10_10_10_REV:
+ case GL_UNSIGNED_INT_8_8_8_8:
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
+ case GL_UNSIGNED_INT_10_10_10_2:
+ case GL_UNSIGNED_INT_2_10_10_10_REV:
dstImage = (GLuint *)malloc(memreq);
break;
default:
glPixelStorei(GL_UNPACK_SKIP_PIXELS, psm.unpack_skip_pixels);
glPixelStorei(GL_UNPACK_ROW_LENGTH, psm.unpack_row_length);
glPixelStorei(GL_UNPACK_SWAP_BYTES, psm.unpack_swap_bytes);
+ free(srcImage);
return GLU_OUT_OF_MEMORY;
}
/* level userLevel+1 is in srcImage; level userLevel already saved */
} else { /* user's image is *not* nice power-of-2 sized square */
memreq = image_size(newwidth, newheight, format, type);
switch(type) {
- case GL_UNSIGNED_BYTE:
- dstImage = (GLubyte *)malloc(memreq);
- break;
- case GL_BYTE:
- dstImage = (GLbyte *)malloc(memreq);
- break;
- case GL_UNSIGNED_SHORT:
- dstImage = (GLushort *)malloc(memreq);
- break;
- case GL_SHORT:
- dstImage = (GLshort *)malloc(memreq);
- break;
- case GL_UNSIGNED_INT:
- dstImage = (GLuint *)malloc(memreq);
- break;
- case GL_INT:
- dstImage = (GLint *)malloc(memreq);
- break;
- case GL_FLOAT:
- dstImage = (GLfloat *)malloc(memreq);
- break;
- case GL_UNSIGNED_BYTE_3_3_2:
- case GL_UNSIGNED_BYTE_2_3_3_REV:
- dstImage = (GLubyte *)malloc(memreq);
+ case GL_UNSIGNED_BYTE:
+ dstImage = (GLubyte *)malloc(memreq);
+ break;
+ case GL_BYTE:
+ dstImage = (GLbyte *)malloc(memreq);
+ break;
+ case GL_UNSIGNED_SHORT:
+ dstImage = (GLushort *)malloc(memreq);
+ break;
+ case GL_SHORT:
+ dstImage = (GLshort *)malloc(memreq);
+ break;
+ case GL_UNSIGNED_INT:
+ dstImage = (GLuint *)malloc(memreq);
+ break;
+ case GL_INT:
+ dstImage = (GLint *)malloc(memreq);
+ break;
+ case GL_FLOAT:
+ dstImage = (GLfloat *)malloc(memreq);
+ break;
+ case GL_UNSIGNED_BYTE_3_3_2:
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
+ dstImage = (GLubyte *)malloc(memreq);
break;
case GL_UNSIGNED_SHORT_5_6_5:
case GL_UNSIGNED_SHORT_5_6_5_REV:
case GL_UNSIGNED_INT_2_10_10_10_REV:
dstImage = (GLuint *)malloc(memreq);
break;
- default:
- return GLU_INVALID_ENUM;
- }
+ default:
+ return GLU_INVALID_ENUM;
+ }
if (dstImage == NULL) {
glPixelStorei(GL_UNPACK_ALIGNMENT, psm.unpack_alignment);
break;
case GL_BYTE:
scale_internal_byte(cmpts, width, height,
- (const GLbyte *)usersImage, newwidth, newheight,
+ (const GLbyte *)usersImage, newwidth, newheight,
(GLbyte *)dstImage, element_size,
rowsize, group_size);
break;
break;
case GL_INT:
scale_internal_int(cmpts, width, height,
- (const GLint *)usersImage, newwidth, newheight,
+ (const GLint *)usersImage, newwidth, newheight,
(GLint *)dstImage, element_size,
rowsize, group_size, myswap_bytes);
break;
case GL_FLOAT:
scale_internal_float(cmpts, width, height,
- (const GLfloat *)usersImage, newwidth, newheight,
+ (const GLfloat *)usersImage, newwidth, newheight,
(GLfloat *)dstImage, element_size,
rowsize, group_size, myswap_bytes);
break;
- case GL_UNSIGNED_BYTE_3_3_2:
+ case GL_UNSIGNED_BYTE_3_3_2:
scaleInternalPackedPixel(3,extract332,shove332,
width, height,usersImage,
newwidth,newheight,(void *)dstImage,
element_size,rowsize,myswap_bytes);
break;
- case GL_UNSIGNED_BYTE_2_3_3_REV:
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
scaleInternalPackedPixel(3,extract233rev,shove233rev,
width, height,usersImage,
newwidth,newheight,(void *)dstImage,
element_size,rowsize,myswap_bytes);
break;
- case GL_UNSIGNED_SHORT_5_6_5:
+ case GL_UNSIGNED_SHORT_5_6_5:
scaleInternalPackedPixel(3,extract565,shove565,
width, height,usersImage,
newwidth,newheight,(void *)dstImage,
element_size,rowsize,myswap_bytes);
break;
- case GL_UNSIGNED_SHORT_5_6_5_REV:
+ case GL_UNSIGNED_SHORT_5_6_5_REV:
scaleInternalPackedPixel(3,extract565rev,shove565rev,
width, height,usersImage,
newwidth,newheight,(void *)dstImage,
element_size,rowsize,myswap_bytes);
break;
- case GL_UNSIGNED_SHORT_4_4_4_4:
+ case GL_UNSIGNED_SHORT_4_4_4_4:
scaleInternalPackedPixel(4,extract4444,shove4444,
width, height,usersImage,
newwidth,newheight,(void *)dstImage,
element_size,rowsize,myswap_bytes);
break;
- case GL_UNSIGNED_SHORT_4_4_4_4_REV:
+ case GL_UNSIGNED_SHORT_4_4_4_4_REV:
scaleInternalPackedPixel(4,extract4444rev,shove4444rev,
width, height,usersImage,
newwidth,newheight,(void *)dstImage,
element_size,rowsize,myswap_bytes);
break;
- case GL_UNSIGNED_SHORT_5_5_5_1:
+ case GL_UNSIGNED_SHORT_5_5_5_1:
scaleInternalPackedPixel(4,extract5551,shove5551,
width, height,usersImage,
newwidth,newheight,(void *)dstImage,
element_size,rowsize,myswap_bytes);
break;
- case GL_UNSIGNED_SHORT_1_5_5_5_REV:
+ case GL_UNSIGNED_SHORT_1_5_5_5_REV:
scaleInternalPackedPixel(4,extract1555rev,shove1555rev,
width, height,usersImage,
newwidth,newheight,(void *)dstImage,
element_size,rowsize,myswap_bytes);
break;
- case GL_UNSIGNED_INT_8_8_8_8:
+ case GL_UNSIGNED_INT_8_8_8_8:
scaleInternalPackedPixel(4,extract8888,shove8888,
width, height,usersImage,
newwidth,newheight,(void *)dstImage,
element_size,rowsize,myswap_bytes);
break;
- case GL_UNSIGNED_INT_8_8_8_8_REV:
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
scaleInternalPackedPixel(4,extract8888rev,shove8888rev,
width, height,usersImage,
newwidth,newheight,(void *)dstImage,
element_size,rowsize,myswap_bytes);
break;
- case GL_UNSIGNED_INT_10_10_10_2:
+ case GL_UNSIGNED_INT_10_10_10_2:
scaleInternalPackedPixel(4,extract1010102,shove1010102,
width, height,usersImage,
newwidth,newheight,(void *)dstImage,
element_size,rowsize,myswap_bytes);
break;
- case GL_UNSIGNED_INT_2_10_10_10_REV:
+ case GL_UNSIGNED_INT_2_10_10_10_REV:
scaleInternalPackedPixel(4,extract2101010rev,shove2101010rev,
width, height,usersImage,
newwidth,newheight,(void *)dstImage,
element_size,rowsize,myswap_bytes);
break;
- default:
+ default:
assert(0);
break;
}
__GLU_SWAP_IMAGE(srcImage,dstImage);
if(levels != 0) { /* use as little memory as possible */
- {
+ {
int nextWidth= newwidth/2;
int nextHeight= newheight/2;
if (nextWidth < 1) nextWidth= 1;
- if (nextHeight < 1) nextHeight= 1;
+ if (nextHeight < 1) nextHeight= 1;
memreq = image_size(nextWidth, nextHeight, format, type);
- }
+ }
switch(type) {
case GL_UNSIGNED_BYTE:
case GL_FLOAT:
dstImage = (GLfloat *)malloc(memreq);
break;
- case GL_UNSIGNED_BYTE_3_3_2:
- case GL_UNSIGNED_BYTE_2_3_3_REV:
+ case GL_UNSIGNED_BYTE_3_3_2:
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
dstImage = (GLubyte *)malloc(memreq);
break;
- case GL_UNSIGNED_SHORT_5_6_5:
- case GL_UNSIGNED_SHORT_5_6_5_REV:
+ case GL_UNSIGNED_SHORT_5_6_5:
+ case GL_UNSIGNED_SHORT_5_6_5_REV:
case GL_UNSIGNED_SHORT_4_4_4_4:
case GL_UNSIGNED_SHORT_4_4_4_4_REV:
case GL_UNSIGNED_SHORT_5_5_5_1:
glPixelStorei(GL_UNPACK_SKIP_PIXELS, psm.unpack_skip_pixels);
glPixelStorei(GL_UNPACK_ROW_LENGTH, psm.unpack_row_length);
glPixelStorei(GL_UNPACK_SWAP_BYTES, psm.unpack_swap_bytes);
+ free(srcImage);
return GLU_OUT_OF_MEMORY;
}
}
/* level userLevel is in srcImage; nothing saved yet */
- level = userLevel;
+ level = userLevel;
}
glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE);
if (baseLevel <= level && level <= maxLevel) {
- glTexImage2D(target, level, internalFormat, newwidth, newheight, 0,
+ glTexImage2D(target, level, internalFormat, newwidth, newheight, 0,
format, type, (void *)srcImage);
}
(GLfloat *)srcImage, (GLfloat *)dstImage, element_size,
rowsize, group_size, myswap_bytes);
break;
- case GL_UNSIGNED_BYTE_3_3_2:
- halveImagePackedPixel(3,extract332,shove332,
+ case GL_UNSIGNED_BYTE_3_3_2:
+ halveImagePackedPixel(3,extract332,shove332,
newwidth,newheight,
srcImage,dstImage,element_size,rowsize,
myswap_bytes);
break;
- case GL_UNSIGNED_BYTE_2_3_3_REV:
- halveImagePackedPixel(3,extract233rev,shove233rev,
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
+ halveImagePackedPixel(3,extract233rev,shove233rev,
newwidth,newheight,
srcImage,dstImage,element_size,rowsize,
myswap_bytes);
break;
case GL_UNSIGNED_SHORT_5_6_5:
- halveImagePackedPixel(3,extract565,shove565,
+ halveImagePackedPixel(3,extract565,shove565,
newwidth,newheight,
srcImage,dstImage,element_size,rowsize,
myswap_bytes);
- break;
+ break;
case GL_UNSIGNED_SHORT_5_6_5_REV:
- halveImagePackedPixel(3,extract565rev,shove565rev,
+ halveImagePackedPixel(3,extract565rev,shove565rev,
newwidth,newheight,
srcImage,dstImage,element_size,rowsize,
myswap_bytes);
- break;
- case GL_UNSIGNED_SHORT_4_4_4_4:
- halveImagePackedPixel(4,extract4444,shove4444,
+ break;
+ case GL_UNSIGNED_SHORT_4_4_4_4:
+ halveImagePackedPixel(4,extract4444,shove4444,
newwidth,newheight,
srcImage,dstImage,element_size,rowsize,
myswap_bytes);
break;
- case GL_UNSIGNED_SHORT_4_4_4_4_REV:
- halveImagePackedPixel(4,extract4444rev,shove4444rev,
+ case GL_UNSIGNED_SHORT_4_4_4_4_REV:
+ halveImagePackedPixel(4,extract4444rev,shove4444rev,
newwidth,newheight,
srcImage,dstImage,element_size,rowsize,
myswap_bytes);
break;
- case GL_UNSIGNED_SHORT_5_5_5_1:
- halveImagePackedPixel(4,extract5551,shove5551,
+ case GL_UNSIGNED_SHORT_5_5_5_1:
+ halveImagePackedPixel(4,extract5551,shove5551,
newwidth,newheight,
srcImage,dstImage,element_size,rowsize,
myswap_bytes);
break;
- case GL_UNSIGNED_SHORT_1_5_5_5_REV:
- halveImagePackedPixel(4,extract1555rev,shove1555rev,
+ case GL_UNSIGNED_SHORT_1_5_5_5_REV:
+ halveImagePackedPixel(4,extract1555rev,shove1555rev,
newwidth,newheight,
srcImage,dstImage,element_size,rowsize,
myswap_bytes);
break;
- case GL_UNSIGNED_INT_8_8_8_8:
- halveImagePackedPixel(4,extract8888,shove8888,
+ case GL_UNSIGNED_INT_8_8_8_8:
+ halveImagePackedPixel(4,extract8888,shove8888,
newwidth,newheight,
srcImage,dstImage,element_size,rowsize,
myswap_bytes);
break;
- case GL_UNSIGNED_INT_8_8_8_8_REV:
- halveImagePackedPixel(4,extract8888rev,shove8888rev,
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
+ halveImagePackedPixel(4,extract8888rev,shove8888rev,
newwidth,newheight,
srcImage,dstImage,element_size,rowsize,
myswap_bytes);
break;
- case GL_UNSIGNED_INT_10_10_10_2:
- halveImagePackedPixel(4,extract1010102,shove1010102,
+ case GL_UNSIGNED_INT_10_10_10_2:
+ halveImagePackedPixel(4,extract1010102,shove1010102,
newwidth,newheight,
srcImage,dstImage,element_size,rowsize,
myswap_bytes);
break;
- case GL_UNSIGNED_INT_2_10_10_10_REV:
- halveImagePackedPixel(4,extract2101010rev,shove2101010rev,
+ case GL_UNSIGNED_INT_2_10_10_10_REV:
+ halveImagePackedPixel(4,extract2101010rev,shove2101010rev,
newwidth,newheight,
srcImage,dstImage,element_size,rowsize,
myswap_bytes);
break;
- default:
- assert(0);
+ default:
+ assert(0);
break;
}
__GLU_SWAP_IMAGE(srcImage,dstImage);
- if (newwidth > 1) { newwidth /= 2; rowsize /= 2;}
- if (newheight > 1) newheight /= 2;
+ if (newwidth > 1) { newwidth /= 2; rowsize /= 2;}
+ if (newheight > 1) newheight /= 2;
{
/* compute amount to pad per row, if any */
- int rowPad= rowsize % psm.unpack_alignment;
+ int rowPad= rowsize % psm.unpack_alignment;
/* should row be padded? */
if (rowPad == 0) { /* nope, row should not be padded */
/* call tex image with srcImage untouched since it's not padded */
if (baseLevel <= level && level <= maxLevel) {
- glTexImage2D(target, level, internalFormat, newwidth, newheight, 0,
+ glTexImage2D(target, level, internalFormat, newwidth, newheight, 0,
format, type, (void *) srcImage);
}
}
for (ii= 0,
dstTrav= (unsigned char *) newMipmapImage,
srcTrav= (unsigned char *) srcImage;
- ii< newheight;
+ ii< newheight;
ii++,
dstTrav+= newRowLength, /* make sure the correct distance... */
srcTrav+= rowsize) { /* ...is skipped */
/* note that the pad bytes are not visited and will contain
* garbage, which is ok.
*/
- }
+ }
- /* ...and use this new image for mipmapping instead */
+ /* ...and use this new image for mipmapping instead */
if (baseLevel <= level && level <= maxLevel) {
- glTexImage2D(target, level, internalFormat, newwidth, newheight, 0,
+ glTexImage2D(target, level, internalFormat, newwidth, newheight, 0,
format, type, newMipmapImage);
}
- free(newMipmapImage); /* don't forget to free it! */
+ free(newMipmapImage); /* don't forget to free it! */
} /* else */
}
} /* for level */
} /* gluBuild2DMipmapLevelsCore() */
GLint GLAPIENTRY
-gluBuild2DMipmapLevels(GLenum target, GLint internalFormat,
- GLsizei width, GLsizei height,
- GLenum format, GLenum type,
+gluBuild2DMipmapLevels(GLenum target, GLint internalFormat,
+ GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
GLint userLevel, GLint baseLevel, GLint maxLevel,
const void *data)
{
if (level > levels) levels=level;
levels+= userLevel;
- if (!isLegalLevels(userLevel,baseLevel,maxLevel,levels))
+ if (!isLegalLevels(userLevel,baseLevel,maxLevel,levels))
return GLU_INVALID_VALUE;
- return gluBuild2DMipmapLevelsCore(target, internalFormat,
+ return gluBuild2DMipmapLevelsCore(target, internalFormat,
width, height,
width, height,
- format, type,
+ format, type,
userLevel, baseLevel, maxLevel,
data);
} /* gluBuild2DMipmapLevels() */
GLint GLAPIENTRY
-gluBuild2DMipmaps(GLenum target, GLint internalFormat,
- GLsizei width, GLsizei height,
- GLenum format, GLenum type,
+gluBuild2DMipmaps(GLenum target, GLint internalFormat,
+ GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
const void *data)
{
GLint widthPowerOf2, heightPowerOf2;
0,0,levels,data);
} /* gluBuild2DMipmaps() */
+#if 0
/*
** This routine is for the limited case in which
-** type == GL_UNSIGNED_BYTE && format != index &&
+** type == GL_UNSIGNED_BYTE && format != index &&
** unpack_alignment = 1 && unpack_swap_bytes == false
**
** so all of the work data can be kept as ubytes instead of shorts.
*/
static int fastBuild2DMipmaps(const PixelStorageModes *psm,
- GLenum target, GLint components, GLint width,
- GLint height, GLenum format,
+ GLenum target, GLint components, GLint width,
+ GLint height, GLenum format,
GLenum type, void *data)
{
GLint newwidth, newheight;
GLubyte *iter2;
GLint i, j;
- newImage = (GLubyte *)
- malloc(image_size(width, height, format, GL_UNSIGNED_BYTE));
+ newImage = (GLubyte *)
+ malloc(image_size(width, height, format, GL_UNSIGNED_BYTE));
newImage_width = width;
newImage_height = height;
if (newImage == NULL) {
}
rowsize = groups_per_line * cmpts;
elements_per_line = width * cmpts;
- start = (const GLubyte *) data + psm->unpack_skip_rows * rowsize +
+ start = (const GLubyte *) data + psm->unpack_skip_rows * rowsize +
psm->unpack_skip_pixels * cmpts;
iter2 = newImage;
for (level = 0; level <= levels; level++) {
if (newImage_width == newwidth && newImage_height == newheight) {
/* Use newImage for this level */
- glTexImage2D(target, level, components, newImage_width,
- newImage_height, 0, format, GL_UNSIGNED_BYTE,
+ glTexImage2D(target, level, components, newImage_width,
+ newImage_height, 0, format, GL_UNSIGNED_BYTE,
(void *) newImage);
} else {
if (otherImage == NULL) {
- memreq =
+ memreq =
image_size(newwidth, newheight, format, GL_UNSIGNED_BYTE);
otherImage = (GLubyte *) malloc(memreq);
if (otherImage == NULL) {
}
}
/*
- scale_internal_ubyte(cmpts, newImage_width, newImage_height,
+ scale_internal_ubyte(cmpts, newImage_width, newImage_height,
newImage, newwidth, newheight, otherImage);
*/
/* Swap newImage and otherImage */
- imageTemp = otherImage;
+ imageTemp = otherImage;
otherImage = newImage;
newImage = imageTemp;
newImage_width = newwidth;
newImage_height = newheight;
- glTexImage2D(target, level, components, newImage_width,
- newImage_height, 0, format, GL_UNSIGNED_BYTE,
+ glTexImage2D(target, level, components, newImage_width,
+ newImage_height, 0, format, GL_UNSIGNED_BYTE,
(void *) newImage);
}
if (newwidth > 1) newwidth /= 2;
}
return 0;
}
+#endif
/*
* Utility Routines
*/
-static GLint elements_per_group(GLenum format, GLenum type)
+static GLint elements_per_group(GLenum format, GLenum type)
{
/*
* Return the number of elements per group of a specified format
*/
/* If the type is packedpixels then answer is 1 (ignore format) */
- if (type == GL_UNSIGNED_BYTE_3_3_2 ||
+ if (type == GL_UNSIGNED_BYTE_3_3_2 ||
type == GL_UNSIGNED_BYTE_2_3_3_REV ||
type == GL_UNSIGNED_SHORT_5_6_5 ||
type == GL_UNSIGNED_SHORT_5_6_5_REV ||
type == GL_UNSIGNED_INT_8_8_8_8_REV ||
type == GL_UNSIGNED_INT_10_10_10_2 ||
type == GL_UNSIGNED_INT_2_10_10_10_REV) {
- return 1;
+ return 1;
}
/* Types are not packed pixels, so get elements per group */
}
}
-static GLfloat bytes_per_element(GLenum type)
+static GLfloat bytes_per_element(GLenum type)
{
/*
* Return the number of bytes per element, based on the element type
case GL_FLOAT:
return(sizeof(GLfloat));
case GL_UNSIGNED_BYTE_3_3_2:
- case GL_UNSIGNED_BYTE_2_3_3_REV:
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
return(sizeof(GLubyte));
case GL_UNSIGNED_SHORT_5_6_5:
case GL_UNSIGNED_SHORT_5_6_5_REV:
}
}
-static GLint is_index(GLenum format)
+static GLint is_index(GLenum format)
{
return format == GL_COLOR_INDEX || format == GL_STENCIL_INDEX;
}
** Compute memory required for internal packed array of data of given type
** and format.
*/
-static GLint image_size(GLint width, GLint height, GLenum format, GLenum type)
+static GLint image_size(GLint width, GLint height, GLenum format, GLenum type)
{
int bytes_per_row;
int components;
** The internal format used is an array of unsigned shorts.
*/
static void fill_image(const PixelStorageModes *psm,
- GLint width, GLint height, GLenum format,
- GLenum type, GLboolean index_format,
+ GLint width, GLint height, GLenum format,
+ GLenum type, GLboolean index_format,
const void *userdata, GLushort *newimage)
{
GLint components;
if (padding) {
rowsize += psm->unpack_alignment - padding;
}
- start = (const GLubyte *) userdata + psm->unpack_skip_rows * rowsize +
+ start = (const GLubyte *) userdata + psm->unpack_skip_rows * rowsize +
(psm->unpack_skip_pixels * components / 8);
elements_per_line = width * components;
iter2 = newimage;
if (padding) {
rowsize += psm->unpack_alignment - padding;
}
- start = (const GLubyte *) userdata + psm->unpack_skip_rows * rowsize +
+ start = (const GLubyte *) userdata + psm->unpack_skip_rows * rowsize +
psm->unpack_skip_pixels * group_size;
elements_per_line = width * components;
*iter2++ = (GLushort)(extractComponents[k]*65535);
}
break;
- case GL_UNSIGNED_BYTE_2_3_3_REV:
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
extract233rev(0,iter,extractComponents);
for (k = 0; k < 3; k++) {
*iter2++ = (GLushort)(extractComponents[k]*65535);
*iter2++ = (*((const GLbyte *) iter)) * 516;
}
break;
- case GL_UNSIGNED_SHORT_5_6_5:
+ case GL_UNSIGNED_SHORT_5_6_5:
extract565(myswap_bytes,iter,extractComponents);
for (k = 0; k < 3; k++) {
*iter2++ = (GLushort)(extractComponents[k]*65535);
}
break;
- case GL_UNSIGNED_SHORT_5_6_5_REV:
+ case GL_UNSIGNED_SHORT_5_6_5_REV:
extract565rev(myswap_bytes,iter,extractComponents);
for (k = 0; k < 3; k++) {
*iter2++ = (GLushort)(extractComponents[k]*65535);
}
break;
- case GL_UNSIGNED_SHORT_4_4_4_4:
+ case GL_UNSIGNED_SHORT_4_4_4_4:
extract4444(myswap_bytes,iter,extractComponents);
for (k = 0; k < 4; k++) {
*iter2++ = (GLushort)(extractComponents[k]*65535);
}
break;
- case GL_UNSIGNED_SHORT_4_4_4_4_REV:
+ case GL_UNSIGNED_SHORT_4_4_4_4_REV:
extract4444rev(myswap_bytes,iter,extractComponents);
for (k = 0; k < 4; k++) {
*iter2++ = (GLushort)(extractComponents[k]*65535);
}
break;
- case GL_UNSIGNED_SHORT_5_5_5_1:
+ case GL_UNSIGNED_SHORT_5_5_5_1:
extract5551(myswap_bytes,iter,extractComponents);
for (k = 0; k < 4; k++) {
*iter2++ = (GLushort)(extractComponents[k]*65535);
}
break;
- case GL_UNSIGNED_SHORT_1_5_5_5_REV:
+ case GL_UNSIGNED_SHORT_1_5_5_5_REV:
extract1555rev(myswap_bytes,iter,extractComponents);
for (k = 0; k < 4; k++) {
*iter2++ = (GLushort)(extractComponents[k]*65535);
*iter2++ = widget.us[0];
}
break;
- case GL_UNSIGNED_INT_8_8_8_8:
+ case GL_UNSIGNED_INT_8_8_8_8:
extract8888(myswap_bytes,iter,extractComponents);
for (k = 0; k < 4; k++) {
*iter2++ = (GLushort)(extractComponents[k]*65535);
}
break;
- case GL_UNSIGNED_INT_8_8_8_8_REV:
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
extract8888rev(myswap_bytes,iter,extractComponents);
for (k = 0; k < 4; k++) {
*iter2++ = (GLushort)(extractComponents[k]*65535);
}
break;
- case GL_UNSIGNED_INT_10_10_10_2:
+ case GL_UNSIGNED_INT_10_10_10_2:
extract1010102(myswap_bytes,iter,extractComponents);
for (k = 0; k < 4; k++) {
*iter2++ = (GLushort)(extractComponents[k]*65535);
/* want 'iter' pointing at start, not within, row for assertion
* purposes
*/
- iter= start;
+ iter= start;
#endif
} /* for i */
elements_per_group(format,0)]);
}
assert( iter == &((const GLubyte *)userdata)[rowsize*height +
- psm->unpack_skip_rows * rowsize +
+ psm->unpack_skip_rows * rowsize +
psm->unpack_skip_pixels * group_size] );
} /* else */
** empty_image() because it is the opposite of fill_image().
*/
static void empty_image(const PixelStorageModes *psm,
- GLint width, GLint height, GLenum format,
- GLenum type, GLboolean index_format,
+ GLint width, GLint height, GLenum format,
+ GLenum type, GLboolean index_format,
const GLushort *oldimage, void *userdata)
{
GLint components;
if (padding) {
rowsize += psm->pack_alignment - padding;
}
- start = (GLubyte *) userdata + psm->pack_skip_rows * rowsize +
+ start = (GLubyte *) userdata + psm->pack_skip_rows * rowsize +
(psm->pack_skip_pixels * components / 8);
elements_per_line = width * components;
iter2 = oldimage;
start += rowsize;
}
} else {
- float shoveComponents[4];
+ float shoveComponents[4];
element_size = bytes_per_element(type);
group_size = element_size * components;
if (padding) {
rowsize += psm->pack_alignment - padding;
}
- start = (GLubyte *) userdata + psm->pack_skip_rows * rowsize +
+ start = (GLubyte *) userdata + psm->pack_skip_rows * rowsize +
psm->pack_skip_pixels * group_size;
elements_per_line = width * components;
Type_Widget widget;
switch(type) {
- case GL_UNSIGNED_BYTE_3_3_2:
+ case GL_UNSIGNED_BYTE_3_3_2:
for (k = 0; k < 3; k++) {
shoveComponents[k]= *iter2++ / 65535.0;
- }
+ }
shove332(shoveComponents,0,(void *)iter);
break;
case GL_UNSIGNED_BYTE_2_3_3_REV:
for (k = 0; k < 3; k++) {
shoveComponents[k]= *iter2++ / 65535.0;
- }
+ }
shove233rev(shoveComponents,0,(void *)iter);
- break;
+ break;
case GL_UNSIGNED_BYTE:
if (index_format) {
*iter = *iter2++;
*((GLbyte *) iter) = *iter2++ >> 9;
}
break;
- case GL_UNSIGNED_SHORT_5_6_5:
+ case GL_UNSIGNED_SHORT_5_6_5:
for (k = 0; k < 3; k++) {
shoveComponents[k]= *iter2++ / 65535.0;
- }
+ }
shove565(shoveComponents,0,(void *)&widget.us[0]);
if (myswap_bytes) {
iter[0] = widget.ub[1];
*(GLushort *)iter = widget.us[0];
}
break;
- case GL_UNSIGNED_SHORT_5_6_5_REV:
+ case GL_UNSIGNED_SHORT_5_6_5_REV:
for (k = 0; k < 3; k++) {
shoveComponents[k]= *iter2++ / 65535.0;
- }
+ }
shove565rev(shoveComponents,0,(void *)&widget.us[0]);
if (myswap_bytes) {
iter[0] = widget.ub[1];
*(GLushort *)iter = widget.us[0];
}
break;
- case GL_UNSIGNED_SHORT_4_4_4_4:
+ case GL_UNSIGNED_SHORT_4_4_4_4:
for (k = 0; k < 4; k++) {
shoveComponents[k]= *iter2++ / 65535.0;
- }
+ }
shove4444(shoveComponents,0,(void *)&widget.us[0]);
if (myswap_bytes) {
iter[0] = widget.ub[1];
*(GLushort *)iter = widget.us[0];
}
break;
- case GL_UNSIGNED_SHORT_4_4_4_4_REV:
+ case GL_UNSIGNED_SHORT_4_4_4_4_REV:
for (k = 0; k < 4; k++) {
shoveComponents[k]= *iter2++ / 65535.0;
- }
+ }
shove4444rev(shoveComponents,0,(void *)&widget.us[0]);
if (myswap_bytes) {
iter[0] = widget.ub[1];
case GL_UNSIGNED_SHORT_5_5_5_1:
for (k = 0; k < 4; k++) {
shoveComponents[k]= *iter2++ / 65535.0;
- }
+ }
shove5551(shoveComponents,0,(void *)&widget.us[0]);
if (myswap_bytes) {
iter[0] = widget.ub[1];
case GL_UNSIGNED_SHORT_1_5_5_5_REV:
for (k = 0; k < 4; k++) {
shoveComponents[k]= *iter2++ / 65535.0;
- }
+ }
shove1555rev(shoveComponents,0,(void *)&widget.us[0]);
if (myswap_bytes) {
iter[0] = widget.ub[1];
iter[1] = widget.ub[1];
}
break;
- case GL_UNSIGNED_INT_8_8_8_8:
+ case GL_UNSIGNED_INT_8_8_8_8:
for (k = 0; k < 4; k++) {
shoveComponents[k]= *iter2++ / 65535.0;
- }
+ }
shove8888(shoveComponents,0,(void *)&widget.ui);
if (myswap_bytes) {
iter[3] = widget.ub[0];
iter[1] = widget.ub[2];
iter[0] = widget.ub[3];
} else {
- *(GLuint *)iter= widget.ui;
+ *(GLuint *)iter= widget.ui;
}
break;
- case GL_UNSIGNED_INT_8_8_8_8_REV:
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
for (k = 0; k < 4; k++) {
shoveComponents[k]= *iter2++ / 65535.0;
- }
+ }
shove8888rev(shoveComponents,0,(void *)&widget.ui);
if (myswap_bytes) {
iter[3] = widget.ub[0];
iter[1] = widget.ub[2];
iter[0] = widget.ub[3];
} else {
- *(GLuint *)iter= widget.ui;
+ *(GLuint *)iter= widget.ui;
}
break;
- case GL_UNSIGNED_INT_10_10_10_2:
+ case GL_UNSIGNED_INT_10_10_10_2:
for (k = 0; k < 4; k++) {
shoveComponents[k]= *iter2++ / 65535.0;
- }
+ }
shove1010102(shoveComponents,0,(void *)&widget.ui);
if (myswap_bytes) {
iter[3] = widget.ub[0];
iter[1] = widget.ub[2];
iter[0] = widget.ub[3];
} else {
- *(GLuint *)iter= widget.ui;
+ *(GLuint *)iter= widget.ui;
}
break;
case GL_UNSIGNED_INT_2_10_10_10_REV:
for (k = 0; k < 4; k++) {
shoveComponents[k]= *iter2++ / 65535.0;
- }
+ }
shove2101010rev(shoveComponents,0,(void *)&widget.ui);
if (myswap_bytes) {
iter[3] = widget.ub[0];
iter[1] = widget.ub[2];
iter[0] = widget.ub[3];
} else {
- *(GLuint *)iter= widget.ui;
+ *(GLuint *)iter= widget.ui;
}
break;
case GL_INT:
/* want 'iter' pointing at start, not within, row for assertion
* purposes
*/
- iter= start;
+ iter= start;
#endif
} /* for i */
elements_per_group(format,0)]);
}
assert( iter == &((GLubyte *)userdata)[rowsize*height +
- psm->pack_skip_rows * rowsize +
+ psm->pack_skip_rows * rowsize +
psm->pack_skip_pixels * group_size] );
} /* else */
} /* empty_image() */
/*--------------------------------------------------------------------------
- * Decimation of packed pixel types
+ * Decimation of packed pixel types
*--------------------------------------------------------------------------
- */
+ */
static void extract332(int isSwap,
const void *packedPixel, GLfloat extractComponents[])
{
extractComponents[0]= (float)((ubyte & 0xe0) >> 5) / 7.0;
extractComponents[1]= (float)((ubyte & 0x1c) >> 2) / 7.0; /* 7 = 2^3-1 */
- extractComponents[2]= (float)((ubyte & 0x03) ) / 3.0; /* 3 = 2^2-1 */
+ extractComponents[2]= (float)((ubyte & 0x03) ) / 3.0; /* 3 = 2^2-1 */
} /* extract332() */
-static void shove332(const GLfloat shoveComponents[],
- int index, void *packedPixel)
+static void shove332(const GLfloat shoveComponents[],
+ int index, void *packedPixel)
{
/* 11100000 == 0xe0 */
/* 00011100 == 0x1c */
assert(0.0 <= shoveComponents[2] && shoveComponents[2] <= 1.0);
/* due to limited precision, need to round before shoving */
- ((GLubyte *)packedPixel)[index] =
+ ((GLubyte *)packedPixel)[index] =
((GLubyte)((shoveComponents[0] * 7)+0.5) << 5) & 0xe0;
- ((GLubyte *)packedPixel)[index] |=
+ ((GLubyte *)packedPixel)[index] |=
((GLubyte)((shoveComponents[1] * 7)+0.5) << 2) & 0x1c;
((GLubyte *)packedPixel)[index] |=
- ((GLubyte)((shoveComponents[2] * 3)+0.5) ) & 0x03;
+ ((GLubyte)((shoveComponents[2] * 3)+0.5) ) & 0x03;
} /* shove332() */
static void extract233rev(int isSwap,
isSwap= isSwap; /* turn off warnings */
/* 0000,0111 == 0x07 */
- /* 0011,1000 == 0x38 */
+ /* 0011,1000 == 0x38 */
/* 1100,0000 == 0xC0 */
extractComponents[0]= (float)((ubyte & 0x07) ) / 7.0;
extractComponents[2]= (float)((ubyte & 0xC0) >> 6) / 3.0;
} /* extract233rev() */
-static void shove233rev(const GLfloat shoveComponents[],
- int index, void *packedPixel)
+static void shove233rev(const GLfloat shoveComponents[],
+ int index, void *packedPixel)
{
/* 0000,0111 == 0x07 */
- /* 0011,1000 == 0x38 */
+ /* 0011,1000 == 0x38 */
/* 1100,0000 == 0xC0 */
assert(0.0 <= shoveComponents[0] && shoveComponents[0] <= 1.0);
assert(0.0 <= shoveComponents[2] && shoveComponents[2] <= 1.0);
/* due to limited precision, need to round before shoving */
- ((GLubyte *)packedPixel)[index] =
+ ((GLubyte *)packedPixel)[index] =
((GLubyte)((shoveComponents[0] * 7.0)+0.5) ) & 0x07;
- ((GLubyte *)packedPixel)[index]|=
+ ((GLubyte *)packedPixel)[index]|=
((GLubyte)((shoveComponents[1] * 7.0)+0.5) << 3) & 0x38;
- ((GLubyte *)packedPixel)[index]|=
+ ((GLubyte *)packedPixel)[index]|=
((GLubyte)((shoveComponents[2] * 3.0)+0.5) << 6) & 0xC0;
} /* shove233rev() */
static void extract565(int isSwap,
const void *packedPixel, GLfloat extractComponents[])
{
- GLushort ushort= *(const GLushort *)packedPixel;
+ GLushort ushort;
if (isSwap) {
ushort= __GLU_SWAP_2_BYTES(packedPixel);
assert(0.0 <= shoveComponents[2] && shoveComponents[2] <= 1.0);
/* due to limited precision, need to round before shoving */
- ((GLushort *)packedPixel)[index] =
+ ((GLushort *)packedPixel)[index] =
((GLushort)((shoveComponents[0] * 31)+0.5) << 11) & 0xf800;
- ((GLushort *)packedPixel)[index]|=
+ ((GLushort *)packedPixel)[index]|=
((GLushort)((shoveComponents[1] * 63)+0.5) << 5) & 0x07e0;
- ((GLushort *)packedPixel)[index]|=
+ ((GLushort *)packedPixel)[index]|=
((GLushort)((shoveComponents[2] * 31)+0.5) ) & 0x001f;
} /* shove565() */
static void extract565rev(int isSwap,
const void *packedPixel, GLfloat extractComponents[])
{
- GLushort ushort= *(const GLushort *)packedPixel;
+ GLushort ushort;
if (isSwap) {
ushort= __GLU_SWAP_2_BYTES(packedPixel);
/* 00000111,11100000 == 0x07e0 */
/* 11111000,00000000 == 0xf800 */
- extractComponents[0]= (float)((ushort & 0x001F) ) / 31.0;
+ extractComponents[0]= (float)((ushort & 0x001F) ) / 31.0;
extractComponents[1]= (float)((ushort & 0x07E0) >> 5) / 63.0;
extractComponents[2]= (float)((ushort & 0xF800) >> 11) / 31.0;
} /* extract565rev() */
assert(0.0 <= shoveComponents[2] && shoveComponents[2] <= 1.0);
/* due to limited precision, need to round before shoving */
- ((GLushort *)packedPixel)[index] =
+ ((GLushort *)packedPixel)[index] =
((GLushort)((shoveComponents[0] * 31.0)+0.5) ) & 0x001F;
- ((GLushort *)packedPixel)[index]|=
+ ((GLushort *)packedPixel)[index]|=
((GLushort)((shoveComponents[1] * 63.0)+0.5) << 5) & 0x07E0;
- ((GLushort *)packedPixel)[index]|=
+ ((GLushort *)packedPixel)[index]|=
((GLushort)((shoveComponents[2] * 31.0)+0.5) << 11) & 0xF800;
} /* shove565rev() */
-static void extract4444(int isSwap,const void *packedPixel,
+static void extract4444(int isSwap,const void *packedPixel,
GLfloat extractComponents[])
{
GLushort ushort;
ushort= *(const GLushort *)packedPixel;
}
- /* 11110000,00000000 == 0xf000 */
- /* 00001111,00000000 == 0x0f00 */
- /* 00000000,11110000 == 0x00f0 */
- /* 00000000,00001111 == 0x000f */
+ /* 11110000,00000000 == 0xf000 */
+ /* 00001111,00000000 == 0x0f00 */
+ /* 00000000,11110000 == 0x00f0 */
+ /* 00000000,00001111 == 0x000f */
extractComponents[0]= (float)((ushort & 0xf000) >> 12) / 15.0;/* 15=2^4-1 */
extractComponents[1]= (float)((ushort & 0x0f00) >> 8) / 15.0;
extractComponents[2]= (float)((ushort & 0x00f0) >> 4) / 15.0;
- extractComponents[3]= (float)((ushort & 0x000f) ) / 15.0;
+ extractComponents[3]= (float)((ushort & 0x000f) ) / 15.0;
} /* extract4444() */
static void shove4444(const GLfloat shoveComponents[],
assert(0.0 <= shoveComponents[3] && shoveComponents[3] <= 1.0);
/* due to limited precision, need to round before shoving */
- ((GLushort *)packedPixel)[index] =
+ ((GLushort *)packedPixel)[index] =
((GLushort)((shoveComponents[0] * 15)+0.5) << 12) & 0xf000;
- ((GLushort *)packedPixel)[index]|=
+ ((GLushort *)packedPixel)[index]|=
((GLushort)((shoveComponents[1] * 15)+0.5) << 8) & 0x0f00;
- ((GLushort *)packedPixel)[index]|=
+ ((GLushort *)packedPixel)[index]|=
((GLushort)((shoveComponents[2] * 15)+0.5) << 4) & 0x00f0;
- ((GLushort *)packedPixel)[index]|=
+ ((GLushort *)packedPixel)[index]|=
((GLushort)((shoveComponents[3] * 15)+0.5) ) & 0x000f;
} /* shove4444() */
-static void extract4444rev(int isSwap,const void *packedPixel,
+static void extract4444rev(int isSwap,const void *packedPixel,
GLfloat extractComponents[])
{
GLushort ushort;
ushort= *(const GLushort *)packedPixel;
}
- /* 00000000,00001111 == 0x000f */
- /* 00000000,11110000 == 0x00f0 */
- /* 00001111,00000000 == 0x0f00 */
- /* 11110000,00000000 == 0xf000 */
+ /* 00000000,00001111 == 0x000f */
+ /* 00000000,11110000 == 0x00f0 */
+ /* 00001111,00000000 == 0x0f00 */
+ /* 11110000,00000000 == 0xf000 */
/* 15 = 2^4-1 */
- extractComponents[0]= (float)((ushort & 0x000F) ) / 15.0;
+ extractComponents[0]= (float)((ushort & 0x000F) ) / 15.0;
extractComponents[1]= (float)((ushort & 0x00F0) >> 4) / 15.0;
extractComponents[2]= (float)((ushort & 0x0F00) >> 8) / 15.0;
extractComponents[3]= (float)((ushort & 0xF000) >> 12) / 15.0;
static void shove4444rev(const GLfloat shoveComponents[],
int index,void *packedPixel)
{
- /* 00000000,00001111 == 0x000f */
- /* 00000000,11110000 == 0x00f0 */
- /* 00001111,00000000 == 0x0f00 */
- /* 11110000,00000000 == 0xf000 */
+ /* 00000000,00001111 == 0x000f */
+ /* 00000000,11110000 == 0x00f0 */
+ /* 00001111,00000000 == 0x0f00 */
+ /* 11110000,00000000 == 0xf000 */
assert(0.0 <= shoveComponents[0] && shoveComponents[0] <= 1.0);
assert(0.0 <= shoveComponents[1] && shoveComponents[1] <= 1.0);
assert(0.0 <= shoveComponents[3] && shoveComponents[3] <= 1.0);
/* due to limited precision, need to round before shoving */
- ((GLushort *)packedPixel)[index] =
+ ((GLushort *)packedPixel)[index] =
((GLushort)((shoveComponents[0] * 15)+0.5) ) & 0x000F;
- ((GLushort *)packedPixel)[index]|=
+ ((GLushort *)packedPixel)[index]|=
((GLushort)((shoveComponents[1] * 15)+0.5) << 4) & 0x00F0;
- ((GLushort *)packedPixel)[index]|=
+ ((GLushort *)packedPixel)[index]|=
((GLushort)((shoveComponents[2] * 15)+0.5) << 8) & 0x0F00;
- ((GLushort *)packedPixel)[index]|=
+ ((GLushort *)packedPixel)[index]|=
((GLushort)((shoveComponents[3] * 15)+0.5) << 12) & 0xF000;
} /* shove4444rev() */
-static void extract5551(int isSwap,const void *packedPixel,
+static void extract5551(int isSwap,const void *packedPixel,
GLfloat extractComponents[])
{
GLushort ushort;
ushort= *(const GLushort *)packedPixel;
}
- /* 11111000,00000000 == 0xf800 */
- /* 00000111,11000000 == 0x07c0 */
- /* 00000000,00111110 == 0x003e */
- /* 00000000,00000001 == 0x0001 */
+ /* 11111000,00000000 == 0xf800 */
+ /* 00000111,11000000 == 0x07c0 */
+ /* 00000000,00111110 == 0x003e */
+ /* 00000000,00000001 == 0x0001 */
extractComponents[0]=(float)((ushort & 0xf800) >> 11) / 31.0;/* 31 = 2^5-1*/
extractComponents[1]=(float)((ushort & 0x07c0) >> 6) / 31.0;
static void shove5551(const GLfloat shoveComponents[],
int index,void *packedPixel)
{
- /* 11111000,00000000 == 0xf800 */
- /* 00000111,11000000 == 0x07c0 */
- /* 00000000,00111110 == 0x003e */
- /* 00000000,00000001 == 0x0001 */
+ /* 11111000,00000000 == 0xf800 */
+ /* 00000111,11000000 == 0x07c0 */
+ /* 00000000,00111110 == 0x003e */
+ /* 00000000,00000001 == 0x0001 */
assert(0.0 <= shoveComponents[0] && shoveComponents[0] <= 1.0);
assert(0.0 <= shoveComponents[1] && shoveComponents[1] <= 1.0);
assert(0.0 <= shoveComponents[3] && shoveComponents[3] <= 1.0);
/* due to limited precision, need to round before shoving */
- ((GLushort *)packedPixel)[index] =
+ ((GLushort *)packedPixel)[index] =
((GLushort)((shoveComponents[0] * 31)+0.5) << 11) & 0xf800;
- ((GLushort *)packedPixel)[index]|=
+ ((GLushort *)packedPixel)[index]|=
((GLushort)((shoveComponents[1] * 31)+0.5) << 6) & 0x07c0;
- ((GLushort *)packedPixel)[index]|=
+ ((GLushort *)packedPixel)[index]|=
((GLushort)((shoveComponents[2] * 31)+0.5) << 1) & 0x003e;
- ((GLushort *)packedPixel)[index]|=
- ((GLushort)((shoveComponents[3])+0.5) ) & 0x0001;
+ ((GLushort *)packedPixel)[index]|=
+ ((GLushort)((shoveComponents[3])+0.5) ) & 0x0001;
} /* shove5551() */
-static void extract1555rev(int isSwap,const void *packedPixel,
+static void extract1555rev(int isSwap,const void *packedPixel,
GLfloat extractComponents[])
{
GLushort ushort;
ushort= *(const GLushort *)packedPixel;
}
- /* 00000000,00011111 == 0x001F */
- /* 00000011,11100000 == 0x03E0 */
- /* 01111100,00000000 == 0x7C00 */
- /* 10000000,00000000 == 0x8000 */
+ /* 00000000,00011111 == 0x001F */
+ /* 00000011,11100000 == 0x03E0 */
+ /* 01111100,00000000 == 0x7C00 */
+ /* 10000000,00000000 == 0x8000 */
/* 31 = 2^5-1 */
- extractComponents[0]= (float)((ushort & 0x001F) ) / 31.0;
+ extractComponents[0]= (float)((ushort & 0x001F) ) / 31.0;
extractComponents[1]= (float)((ushort & 0x03E0) >> 5) / 31.0;
extractComponents[2]= (float)((ushort & 0x7C00) >> 10) / 31.0;
extractComponents[3]= (float)((ushort & 0x8000) >> 15);
static void shove1555rev(const GLfloat shoveComponents[],
int index,void *packedPixel)
{
- /* 00000000,00011111 == 0x001F */
- /* 00000011,11100000 == 0x03E0 */
- /* 01111100,00000000 == 0x7C00 */
- /* 10000000,00000000 == 0x8000 */
+ /* 00000000,00011111 == 0x001F */
+ /* 00000011,11100000 == 0x03E0 */
+ /* 01111100,00000000 == 0x7C00 */
+ /* 10000000,00000000 == 0x8000 */
assert(0.0 <= shoveComponents[0] && shoveComponents[0] <= 1.0);
assert(0.0 <= shoveComponents[1] && shoveComponents[1] <= 1.0);
assert(0.0 <= shoveComponents[3] && shoveComponents[3] <= 1.0);
/* due to limited precision, need to round before shoving */
- ((GLushort *)packedPixel)[index] =
+ ((GLushort *)packedPixel)[index] =
((GLushort)((shoveComponents[0] * 31)+0.5) ) & 0x001F;
- ((GLushort *)packedPixel)[index]|=
+ ((GLushort *)packedPixel)[index]|=
((GLushort)((shoveComponents[1] * 31)+0.5) << 5) & 0x03E0;
- ((GLushort *)packedPixel)[index]|=
+ ((GLushort *)packedPixel)[index]|=
((GLushort)((shoveComponents[2] * 31)+0.5) << 10) & 0x7C00;
- ((GLushort *)packedPixel)[index]|=
- ((GLushort)((shoveComponents[3])+0.5) << 15) & 0x8000;
-} /* shove1555rev() */
+ ((GLushort *)packedPixel)[index]|=
+ ((GLushort)((shoveComponents[3])+0.5) << 15) & 0x8000;
+} /* shove1555rev() */
static void extract8888(int isSwap,
const void *packedPixel, GLfloat extractComponents[])
uint= *(const GLuint *)packedPixel;
}
- /* 11111111,00000000,00000000,00000000 == 0xff000000 */
- /* 00000000,11111111,00000000,00000000 == 0x00ff0000 */
- /* 00000000,00000000,11111111,00000000 == 0x0000ff00 */
- /* 00000000,00000000,00000000,11111111 == 0x000000ff */
+ /* 11111111,00000000,00000000,00000000 == 0xff000000 */
+ /* 00000000,11111111,00000000,00000000 == 0x00ff0000 */
+ /* 00000000,00000000,11111111,00000000 == 0x0000ff00 */
+ /* 00000000,00000000,00000000,11111111 == 0x000000ff */
/* 255 = 2^8-1 */
extractComponents[0]= (float)((uint & 0xff000000) >> 24) / 255.0;
extractComponents[1]= (float)((uint & 0x00ff0000) >> 16) / 255.0;
extractComponents[2]= (float)((uint & 0x0000ff00) >> 8) / 255.0;
- extractComponents[3]= (float)((uint & 0x000000ff) ) / 255.0;
+ extractComponents[3]= (float)((uint & 0x000000ff) ) / 255.0;
} /* extract8888() */
static void shove8888(const GLfloat shoveComponents[],
int index,void *packedPixel)
{
- /* 11111111,00000000,00000000,00000000 == 0xff000000 */
- /* 00000000,11111111,00000000,00000000 == 0x00ff0000 */
- /* 00000000,00000000,11111111,00000000 == 0x0000ff00 */
- /* 00000000,00000000,00000000,11111111 == 0x000000ff */
+ /* 11111111,00000000,00000000,00000000 == 0xff000000 */
+ /* 00000000,11111111,00000000,00000000 == 0x00ff0000 */
+ /* 00000000,00000000,11111111,00000000 == 0x0000ff00 */
+ /* 00000000,00000000,00000000,11111111 == 0x000000ff */
assert(0.0 <= shoveComponents[0] && shoveComponents[0] <= 1.0);
assert(0.0 <= shoveComponents[1] && shoveComponents[1] <= 1.0);
assert(0.0 <= shoveComponents[3] && shoveComponents[3] <= 1.0);
/* due to limited precision, need to round before shoving */
- ((GLuint *)packedPixel)[index] =
+ ((GLuint *)packedPixel)[index] =
((GLuint)((shoveComponents[0] * 255)+0.5) << 24) & 0xff000000;
- ((GLuint *)packedPixel)[index]|=
+ ((GLuint *)packedPixel)[index]|=
((GLuint)((shoveComponents[1] * 255)+0.5) << 16) & 0x00ff0000;
- ((GLuint *)packedPixel)[index]|=
+ ((GLuint *)packedPixel)[index]|=
((GLuint)((shoveComponents[2] * 255)+0.5) << 8) & 0x0000ff00;
- ((GLuint *)packedPixel)[index]|=
- ((GLuint)((shoveComponents[3] * 255)+0.5) ) & 0x000000ff;
+ ((GLuint *)packedPixel)[index]|=
+ ((GLuint)((shoveComponents[3] * 255)+0.5) ) & 0x000000ff;
} /* shove8888() */
static void extract8888rev(int isSwap,
uint= *(const GLuint *)packedPixel;
}
- /* 00000000,00000000,00000000,11111111 == 0x000000ff */
- /* 00000000,00000000,11111111,00000000 == 0x0000ff00 */
- /* 00000000,11111111,00000000,00000000 == 0x00ff0000 */
- /* 11111111,00000000,00000000,00000000 == 0xff000000 */
+ /* 00000000,00000000,00000000,11111111 == 0x000000ff */
+ /* 00000000,00000000,11111111,00000000 == 0x0000ff00 */
+ /* 00000000,11111111,00000000,00000000 == 0x00ff0000 */
+ /* 11111111,00000000,00000000,00000000 == 0xff000000 */
/* 255 = 2^8-1 */
- extractComponents[0]= (float)((uint & 0x000000FF) ) / 255.0;
+ extractComponents[0]= (float)((uint & 0x000000FF) ) / 255.0;
extractComponents[1]= (float)((uint & 0x0000FF00) >> 8) / 255.0;
extractComponents[2]= (float)((uint & 0x00FF0000) >> 16) / 255.0;
extractComponents[3]= (float)((uint & 0xFF000000) >> 24) / 255.0;
static void shove8888rev(const GLfloat shoveComponents[],
int index,void *packedPixel)
{
- /* 00000000,00000000,00000000,11111111 == 0x000000ff */
- /* 00000000,00000000,11111111,00000000 == 0x0000ff00 */
- /* 00000000,11111111,00000000,00000000 == 0x00ff0000 */
- /* 11111111,00000000,00000000,00000000 == 0xff000000 */
+ /* 00000000,00000000,00000000,11111111 == 0x000000ff */
+ /* 00000000,00000000,11111111,00000000 == 0x0000ff00 */
+ /* 00000000,11111111,00000000,00000000 == 0x00ff0000 */
+ /* 11111111,00000000,00000000,00000000 == 0xff000000 */
assert(0.0 <= shoveComponents[0] && shoveComponents[0] <= 1.0);
assert(0.0 <= shoveComponents[1] && shoveComponents[1] <= 1.0);
assert(0.0 <= shoveComponents[3] && shoveComponents[3] <= 1.0);
/* due to limited precision, need to round before shoving */
- ((GLuint *)packedPixel)[index] =
- ((GLuint)((shoveComponents[0] * 255)+0.5) ) & 0x000000FF;
- ((GLuint *)packedPixel)[index]|=
+ ((GLuint *)packedPixel)[index] =
+ ((GLuint)((shoveComponents[0] * 255)+0.5) ) & 0x000000FF;
+ ((GLuint *)packedPixel)[index]|=
((GLuint)((shoveComponents[1] * 255)+0.5) << 8) & 0x0000FF00;
- ((GLuint *)packedPixel)[index]|=
+ ((GLuint *)packedPixel)[index]|=
((GLuint)((shoveComponents[2] * 255)+0.5) << 16) & 0x00FF0000;
- ((GLuint *)packedPixel)[index]|=
+ ((GLuint *)packedPixel)[index]|=
((GLuint)((shoveComponents[3] * 255)+0.5) << 24) & 0xFF000000;
} /* shove8888rev() */
uint= *(const GLuint *)packedPixel;
}
- /* 11111111,11000000,00000000,00000000 == 0xffc00000 */
- /* 00000000,00111111,11110000,00000000 == 0x003ff000 */
- /* 00000000,00000000,00001111,11111100 == 0x00000ffc */
- /* 00000000,00000000,00000000,00000011 == 0x00000003 */
+ /* 11111111,11000000,00000000,00000000 == 0xffc00000 */
+ /* 00000000,00111111,11110000,00000000 == 0x003ff000 */
+ /* 00000000,00000000,00001111,11111100 == 0x00000ffc */
+ /* 00000000,00000000,00000000,00000011 == 0x00000003 */
/* 1023 = 2^10-1 */
- extractComponents[0]= (float)((uint & 0xffc00000) >> 22) / 1023.0;
+ extractComponents[0]= (float)((uint & 0xffc00000) >> 22) / 1023.0;
extractComponents[1]= (float)((uint & 0x003ff000) >> 12) / 1023.0;
extractComponents[2]= (float)((uint & 0x00000ffc) >> 2) / 1023.0;
- extractComponents[3]= (float)((uint & 0x00000003) ) / 3.0;
+ extractComponents[3]= (float)((uint & 0x00000003) ) / 3.0;
} /* extract1010102() */
static void shove1010102(const GLfloat shoveComponents[],
int index,void *packedPixel)
{
- /* 11111111,11000000,00000000,00000000 == 0xffc00000 */
- /* 00000000,00111111,11110000,00000000 == 0x003ff000 */
- /* 00000000,00000000,00001111,11111100 == 0x00000ffc */
- /* 00000000,00000000,00000000,00000011 == 0x00000003 */
+ /* 11111111,11000000,00000000,00000000 == 0xffc00000 */
+ /* 00000000,00111111,11110000,00000000 == 0x003ff000 */
+ /* 00000000,00000000,00001111,11111100 == 0x00000ffc */
+ /* 00000000,00000000,00000000,00000011 == 0x00000003 */
assert(0.0 <= shoveComponents[0] && shoveComponents[0] <= 1.0);
assert(0.0 <= shoveComponents[1] && shoveComponents[1] <= 1.0);
assert(0.0 <= shoveComponents[3] && shoveComponents[3] <= 1.0);
/* due to limited precision, need to round before shoving */
- ((GLuint *)packedPixel)[index] =
+ ((GLuint *)packedPixel)[index] =
((GLuint)((shoveComponents[0] * 1023)+0.5) << 22) & 0xffc00000;
- ((GLuint *)packedPixel)[index]|=
+ ((GLuint *)packedPixel)[index]|=
((GLuint)((shoveComponents[1] * 1023)+0.5) << 12) & 0x003ff000;
- ((GLuint *)packedPixel)[index]|=
+ ((GLuint *)packedPixel)[index]|=
((GLuint)((shoveComponents[2] * 1023)+0.5) << 2) & 0x00000ffc;
- ((GLuint *)packedPixel)[index]|=
- ((GLuint)((shoveComponents[3] * 3)+0.5) ) & 0x00000003;
-} /* shove1010102() */
+ ((GLuint *)packedPixel)[index]|=
+ ((GLuint)((shoveComponents[3] * 3)+0.5) ) & 0x00000003;
+} /* shove1010102() */
static void extract2101010rev(int isSwap,
const void *packedPixel,
uint= *(const GLuint *)packedPixel;
}
- /* 00000000,00000000,00000011,11111111 == 0x000003FF */
- /* 00000000,00001111,11111100,00000000 == 0x000FFC00 */
- /* 00111111,11110000,00000000,00000000 == 0x3FF00000 */
- /* 11000000,00000000,00000000,00000000 == 0xC0000000 */
+ /* 00000000,00000000,00000011,11111111 == 0x000003FF */
+ /* 00000000,00001111,11111100,00000000 == 0x000FFC00 */
+ /* 00111111,11110000,00000000,00000000 == 0x3FF00000 */
+ /* 11000000,00000000,00000000,00000000 == 0xC0000000 */
/* 1023 = 2^10-1 */
- extractComponents[0]= (float)((uint & 0x000003FF) ) / 1023.0;
+ extractComponents[0]= (float)((uint & 0x000003FF) ) / 1023.0;
extractComponents[1]= (float)((uint & 0x000FFC00) >> 10) / 1023.0;
extractComponents[2]= (float)((uint & 0x3FF00000) >> 20) / 1023.0;
- extractComponents[3]= (float)((uint & 0xC0000000) >> 30) / 3.0;
+ extractComponents[3]= (float)((uint & 0xC0000000) >> 30) / 3.0;
/* 3 = 2^2-1 */
} /* extract2101010rev() */
static void shove2101010rev(const GLfloat shoveComponents[],
int index,void *packedPixel)
{
- /* 00000000,00000000,00000011,11111111 == 0x000003FF */
- /* 00000000,00001111,11111100,00000000 == 0x000FFC00 */
- /* 00111111,11110000,00000000,00000000 == 0x3FF00000 */
- /* 11000000,00000000,00000000,00000000 == 0xC0000000 */
+ /* 00000000,00000000,00000011,11111111 == 0x000003FF */
+ /* 00000000,00001111,11111100,00000000 == 0x000FFC00 */
+ /* 00111111,11110000,00000000,00000000 == 0x3FF00000 */
+ /* 11000000,00000000,00000000,00000000 == 0xC0000000 */
assert(0.0 <= shoveComponents[0] && shoveComponents[0] <= 1.0);
assert(0.0 <= shoveComponents[1] && shoveComponents[1] <= 1.0);
assert(0.0 <= shoveComponents[3] && shoveComponents[3] <= 1.0);
/* due to limited precision, need to round before shoving */
- ((GLuint *)packedPixel)[index] =
+ ((GLuint *)packedPixel)[index] =
((GLuint)((shoveComponents[0] * 1023)+0.5) ) & 0x000003FF;
- ((GLuint *)packedPixel)[index]|=
+ ((GLuint *)packedPixel)[index]|=
((GLuint)((shoveComponents[1] * 1023)+0.5) << 10) & 0x000FFC00;
- ((GLuint *)packedPixel)[index]|=
+ ((GLuint *)packedPixel)[index]|=
((GLuint)((shoveComponents[2] * 1023)+0.5) << 20) & 0x3FF00000;
- ((GLuint *)packedPixel)[index]|=
- ((GLuint)((shoveComponents[3] * 3)+0.5) << 30) & 0xC0000000;
+ ((GLuint *)packedPixel)[index]|=
+ ((GLuint)((shoveComponents[3] * 3)+0.5) << 30) & 0xC0000000;
} /* shove2101010rev() */
static void scaleInternalPackedPixel(int components,
(int, const void *,GLfloat []),
void (*shovePackedPixel)
(const GLfloat [], int, void *),
- GLint widthIn,GLint heightIn,
+ GLint widthIn,GLint heightIn,
const void *dataIn,
GLint widthOut,GLint heightOut,
void *dataOut,
convy_float = convy - convy_int;
convx_int = floor(convx);
convx_float = convx - convx_int;
-
+
area = convx * convy;
lowy_int = 0;
if((highy_int>lowy_int) && (highx_int>lowx_int)) {
y_percent = 1-lowy_float;
- temp = (const char *)dataIn + xindex + lowy_int * rowSizeInBytes;
+ temp = (const char *)dataIn + xindex + lowy_int * rowSizeInBytes;
percent = y_percent * (1-lowx_float);
#if 0
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
if (myswap_bytes) {
totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
} else {
- totals[k] += *(const GLushort*)temp_index * percent;
+ totals[k] += *(const GLushort*)temp_index * percent;
}
- }
+ }
#else
(*extractPackedPixel)(isSwap,temp,extractTotals);
for (k = 0; k < components; k++) {
totals[k]+= extractTotals[k] * percent;
- }
+ }
#endif
left = temp;
- for(l = lowx_int+1; l < highx_int; l++) {
+ for(l = lowx_int+1; l < highx_int; l++) {
temp += pixelSizeInBytes;
#if 0
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] +=
- __GLU_SWAP_2_BYTES(temp_index) * y_percent;
- } else {
- totals[k] += *(const GLushort*)temp_index * y_percent;
- }
+ if (myswap_bytes) {
+ totals[k] +=
+ __GLU_SWAP_2_BYTES(temp_index) * y_percent;
+ } else {
+ totals[k] += *(const GLushort*)temp_index * y_percent;
+ }
}
#else
(*extractPackedPixel)(isSwap,temp,extractTotals);
for (k = 0; k < components; k++) {
totals[k]+= extractTotals[k] * y_percent;
- }
+ }
#endif
- }
+ }
temp += pixelSizeInBytes;
right = temp;
percent = y_percent * highx_float;
#if 0
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
- } else {
- totals[k] += *(const GLushort*)temp_index * percent;
- }
- }
+ if (myswap_bytes) {
+ totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
+ } else {
+ totals[k] += *(const GLushort*)temp_index * percent;
+ }
+ }
#else
(*extractPackedPixel)(isSwap,temp,extractTotals);
for (k = 0; k < components; k++) {
totals[k]+= extractTotals[k] * percent;
- }
+ }
#endif
/* calculate the value for pixels in the last row */
-
+
y_percent = highy_float;
percent = y_percent * (1-lowx_float);
temp = (const char *)dataIn + xindex + highy_int * rowSizeInBytes;
#if 0
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
- } else {
- totals[k] += *(const GLushort*)temp_index * percent;
- }
- }
+ if (myswap_bytes) {
+ totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
+ } else {
+ totals[k] += *(const GLushort*)temp_index * percent;
+ }
+ }
#else
(*extractPackedPixel)(isSwap,temp,extractTotals);
for (k = 0; k < components; k++) {
totals[k]+= extractTotals[k] * percent;
- }
+ }
#endif
for(l = lowx_int+1; l < highx_int; l++) {
- temp += pixelSizeInBytes;
+ temp += pixelSizeInBytes;
#if 0
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] +=
- __GLU_SWAP_2_BYTES(temp_index) * y_percent;
- } else {
- totals[k] += *(const GLushort*)temp_index * y_percent;
- }
- }
+ if (myswap_bytes) {
+ totals[k] +=
+ __GLU_SWAP_2_BYTES(temp_index) * y_percent;
+ } else {
+ totals[k] += *(const GLushort*)temp_index * y_percent;
+ }
+ }
#else
(*extractPackedPixel)(isSwap,temp,extractTotals);
for (k = 0; k < components; k++) {
totals[k]+= extractTotals[k] * y_percent;
- }
+ }
#endif
- }
- temp += pixelSizeInBytes;
+ }
+ temp += pixelSizeInBytes;
percent = y_percent * highx_float;
#if 0
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
- } else {
- totals[k] += *(const GLushort*)temp_index * percent;
- }
- }
+ if (myswap_bytes) {
+ totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
+ } else {
+ totals[k] += *(const GLushort*)temp_index * percent;
+ }
+ }
#else
(*extractPackedPixel)(isSwap,temp,extractTotals);
for (k = 0; k < components; k++) {
totals[k]+= extractTotals[k] * percent;
- }
+ }
#endif
/* calculate the value for pixels in the 1st and last column */
left += rowSizeInBytes;
right += rowSizeInBytes;
#if 0
- for (k = 0; k < components;
- k++, left += element_size, right += element_size) {
- if (myswap_bytes) {
- totals[k] +=
- __GLU_SWAP_2_BYTES(left) * (1-lowx_float) +
- __GLU_SWAP_2_BYTES(right) * highx_float;
- } else {
- totals[k] += *(const GLushort*)left * (1-lowx_float)
- + *(const GLushort*)right * highx_float;
- }
+ for (k = 0; k < components;
+ k++, left += element_size, right += element_size) {
+ if (myswap_bytes) {
+ totals[k] +=
+ __GLU_SWAP_2_BYTES(left) * (1-lowx_float) +
+ __GLU_SWAP_2_BYTES(right) * highx_float;
+ } else {
+ totals[k] += *(const GLushort*)left * (1-lowx_float)
+ + *(const GLushort*)right * highx_float;
+ }
}
#else
(*extractPackedPixel)(isSwap,left,extractTotals);
(*extractPackedPixel)(isSwap,right,extractMoreTotals);
for (k = 0; k < components; k++) {
totals[k]+= (extractTotals[k]*(1-lowx_float) +
- extractMoreTotals[k]*highx_float);
+ extractMoreTotals[k]*highx_float);
}
#endif
}
percent = (1-lowy_float)*x_percent;
temp = (const char *)dataIn + xindex + lowy_int*rowSizeInBytes;
#if 0
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
- } else {
- totals[k] += *(const GLushort*)temp_index * percent;
- }
- }
+ if (myswap_bytes) {
+ totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
+ } else {
+ totals[k] += *(const GLushort*)temp_index * percent;
+ }
+ }
#else
(*extractPackedPixel)(isSwap,temp,extractTotals);
for (k = 0; k < components; k++) {
totals[k]+= extractTotals[k] * percent;
- }
+ }
#endif
for(m = lowy_int+1; m < highy_int; m++) {
temp += rowSizeInBytes;
#if 0
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] +=
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ totals[k] +=
__GLU_SWAP_2_BYTES(temp_index) * x_percent;
- } else {
- totals[k] += *(const GLushort*)temp_index * x_percent;
- }
+ } else {
+ totals[k] += *(const GLushort*)temp_index * x_percent;
+ }
}
#else
(*extractPackedPixel)(isSwap,temp,extractTotals);
for (k = 0; k < components; k++) {
totals[k]+= extractTotals[k] * x_percent;
- }
+ }
#endif
}
percent = x_percent * highy_float;
temp += rowSizeInBytes;
#if 0
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
- } else {
- totals[k] += *(const GLushort*)temp_index * percent;
- }
- }
+ if (myswap_bytes) {
+ totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
+ } else {
+ totals[k] += *(const GLushort*)temp_index * percent;
+ }
+ }
#else
(*extractPackedPixel)(isSwap,temp,extractTotals);
for (k = 0; k < components; k++) {
totals[k]+= extractTotals[k] * percent;
- }
+ }
#endif
} else if (highx_int > lowx_int) {
y_percent = highy_float - lowy_float;
percent = (1-lowx_float)*y_percent;
temp = (const char *)dataIn + xindex + lowy_int*rowSizeInBytes;
#if 0
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
- } else {
- totals[k] += *(const GLushort*)temp_index * percent;
- }
- }
+ if (myswap_bytes) {
+ totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
+ } else {
+ totals[k] += *(const GLushort*)temp_index * percent;
+ }
+ }
#else
(*extractPackedPixel)(isSwap,temp,extractTotals);
for (k = 0; k < components; k++) {
totals[k]+= extractTotals[k] * percent;
- }
+ }
#endif
for (l = lowx_int+1; l < highx_int; l++) {
- temp += pixelSizeInBytes;
+ temp += pixelSizeInBytes;
#if 0
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] +=
- __GLU_SWAP_2_BYTES(temp_index) * y_percent;
- } else {
- totals[k] += *(const GLushort*)temp_index * y_percent;
- }
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ totals[k] +=
+ __GLU_SWAP_2_BYTES(temp_index) * y_percent;
+ } else {
+ totals[k] += *(const GLushort*)temp_index * y_percent;
+ }
}
#else
(*extractPackedPixel)(isSwap,temp,extractTotals);
for (k = 0; k < components; k++) {
totals[k]+= extractTotals[k] * y_percent;
- }
+ }
#endif
}
temp += pixelSizeInBytes;
percent = y_percent * highx_float;
#if 0
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
- } else {
- totals[k] += *(const GLushort*)temp_index * percent;
- }
+ if (myswap_bytes) {
+ totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
+ } else {
+ totals[k] += *(const GLushort*)temp_index * percent;
+ }
}
#else
(*extractPackedPixel)(isSwap,temp,extractTotals);
for (k = 0; k < components; k++) {
totals[k]+= extractTotals[k] * percent;
- }
+ }
#endif
} else {
percent = (highy_float-lowy_float)*(highx_float-lowx_float);
temp = (const char *)dataIn + xindex + lowy_int * rowSizeInBytes;
#if 0
- for (k = 0, temp_index = temp; k < components;
+ for (k = 0, temp_index = temp; k < components;
k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
- } else {
- totals[k] += *(const GLushort*)temp_index * percent;
- }
- }
+ if (myswap_bytes) {
+ totals[k] += __GLU_SWAP_2_BYTES(temp_index) * percent;
+ } else {
+ totals[k] += *(const GLushort*)temp_index * percent;
+ }
+ }
#else
(*extractPackedPixel)(isSwap,temp,extractTotals);
for (k = 0; k < components; k++) {
totals[k]+= extractTotals[k] * percent;
- }
+ }
#endif
}
temp = temp0;
for(l = lowx_int+1; l < highx_int; l++) {
#if 0
- for (k = 0, temp_index = temp; k < components;
- k++, temp_index += element_size) {
- if (myswap_bytes) {
- totals[k] += __GLU_SWAP_2_BYTES(temp_index);
- } else {
- totals[k] += *(const GLushort*)temp_index;
- }
- }
+ for (k = 0, temp_index = temp; k < components;
+ k++, temp_index += element_size) {
+ if (myswap_bytes) {
+ totals[k] += __GLU_SWAP_2_BYTES(temp_index);
+ } else {
+ totals[k] += *(const GLushort*)temp_index;
+ }
+ }
#else
(*extractPackedPixel)(isSwap,temp,extractTotals);
for (k = 0; k < components; k++) {
totals[k]+= extractTotals[k];
- }
+ }
#endif
- temp += pixelSizeInBytes;
- }
- temp0 += rowSizeInBytes;
+ temp += pixelSizeInBytes;
+ }
+ temp0 += rowSizeInBytes;
}
outindex = (j + (i * widthOut)); /* * (components == 1) */
}
#else
for (k = 0; k < components; k++) {
- shoveTotals[k]= totals[k]/area;
+ shoveTotals[k]= totals[k]/area;
}
(*shovePackedPixel)(shoveTotals,outindex,(void *)dataOut);
#endif
lowx_int = highx_int;
lowx_float = highx_float;
highx_int += convx_int;
- highx_float += convx_float;
+ highx_float += convx_float;
if(highx_float > 1) {
highx_float -= 1.0;
highx_int++;
assert(outindex == (widthOut*heightOut - 1));
} /* scaleInternalPackedPixel() */
-/* rowSizeInBytes is at least the width (in bytes) due to padding on
- * inputs; not always equal. Output NEVER has row padding.
+/* rowSizeInBytes is at least the width (in bytes) due to padding on
+ * inputs; not always equal. Output NEVER has row padding.
*/
static void halveImagePackedPixel(int components,
void (*extractPackedPixel)
(int, const void *,GLfloat []),
void (*shovePackedPixel)
(const GLfloat [],int, void *),
- GLint width, GLint height,
+ GLint width, GLint height,
const void *dataIn, void *dataOut,
- GLint pixelSizeInBytes,
+ GLint pixelSizeInBytes,
GLint rowSizeInBytes, GLint isSwap)
{
/* handle case where there is only 1 column/row */
(*extractPackedPixel)(isSwap,
(src+rowSizeInBytes+pixelSizeInBytes),
&extractTotals[3][0]);
- for (cc = 0; cc < components; cc++) {
+ for (cc = 0; cc < components; cc++) {
int kk;
/* grab 4 pixels to average */
totals[cc]= 0.0;
/* totals[RED]= extractTotals[0][RED]+extractTotals[1][RED]+
- * extractTotals[2][RED]+extractTotals[3][RED];
+ * extractTotals[2][RED]+extractTotals[3][RED];
* totals[RED]/= 4.0;
*/
for (kk = 0; kk < BOX4; kk++) {
/* src is at beginning of a row here, but it's the second row of
* the square block of 4 pixels that we just worked on so we
- * need to go one more row.
- * i.e.,
- * OO...
- * here -->OO...
- * but want -->OO...
- * OO...
- * ...
+ * need to go one more row.
+ * i.e.,
+ * OO...
+ * here -->OO...
+ * but want -->OO...
+ * OO...
+ * ...
*/
src+= rowSizeInBytes;
}
(int, const void *,GLfloat []),
void (*shovePackedPixel)
(const GLfloat [],int, void *),
- GLint width, GLint height,
+ GLint width, GLint height,
const void *dataIn, void *dataOut,
- GLint pixelSizeInBytes,
+ GLint pixelSizeInBytes,
GLint rowSizeInBytes, GLint isSwap)
{
int halfWidth= width / 2;
(*extractPackedPixel)(isSwap,src,
&extractTotals[0][0]);
(*extractPackedPixel)(isSwap,(src+pixelSizeInBytes),
- &extractTotals[1][0]);
- for (cc = 0; cc < components; cc++) {
+ &extractTotals[1][0]);
+ for (cc = 0; cc < components; cc++) {
int kk;
/* grab 2 pixels to average */
}
{
- int padBytes= rowSizeInBytes - (width*pixelSizeInBytes);
+ int padBytes= rowSizeInBytes - (width*pixelSizeInBytes);
src+= padBytes; /* for assertion only */
}
assert(src == &((const char *)dataIn)[rowSizeInBytes]);
(*extractPackedPixel)(isSwap,src,
&extractTotals[0][0]);
(*extractPackedPixel)(isSwap,(src+rowSizeInBytes),
- &extractTotals[1][0]);
- for (cc = 0; cc < components; cc++) {
+ &extractTotals[1][0]);
+ for (cc = 0; cc < components; cc++) {
int kk;
/* grab 2 pixels to average */
* Or is it might be supported as an extension.
* Contributed by Gerk Huisma <gerk@five-d.demon.nl>.
*/
-
-typedef GLAPI void (GLAPIENTRY *TexImage3Dproc)( GLenum target, GLint level,
- GLenum internalFormat,
- GLsizei width, GLsizei height,
- GLsizei depth, GLint border,
- GLenum format, GLenum type,
- const GLvoid *pixels );
-static TexImage3Dproc pTexImage3D;
+typedef void (GLAPIENTRY *TexImage3Dproc)( GLenum target, GLint level,
+ GLenum internalFormat,
+ GLsizei width, GLsizei height,
+ GLsizei depth, GLint border,
+ GLenum format, GLenum type,
+ const GLvoid *pixels );
+
+static TexImage3Dproc pTexImage3D = 0;
-#ifndef WIN32
+#if !defined(_WIN32) && !defined(__WIN32__)
# include <dlfcn.h>
# include <sys/types.h>
#else
#endif
static void gluTexImage3D( GLenum target, GLint level,
- GLenum internalFormat,
- GLsizei width, GLsizei height,
- GLsizei depth, GLint border,
- GLenum format, GLenum type,
- const GLvoid *pixels )
+ GLenum internalFormat,
+ GLsizei width, GLsizei height,
+ GLsizei depth, GLint border,
+ GLenum format, GLenum type,
+ const GLvoid *pixels )
{
if (!pTexImage3D) {
-#ifdef WIN32
+#if defined(_WIN32) || defined(__WIN32__)
pTexImage3D = (TexImage3Dproc) wglGetProcAddress("glTexImage3D");
- if (!pTexImage3D)
- pTexImage3D = (TexImage3Dproc) wglGetProcAddress("glTexImage3DEXT");
+ if (!pTexImage3D)
+ pTexImage3D = (TexImage3Dproc) wglGetProcAddress("glTexImage3DEXT");
#else
void *libHandle = dlopen("libgl.so", RTLD_LAZY);
- pTexImage3D = TexImage3Dproc) dlsym(libHandle, "glTexImage3D" );
- if (!pTexImage3D)
- pTexImage3D = (TexImage3Dproc) dlsym(libHandle,"glTexImage3DEXT");
+ pTexImage3D = (TexImage3Dproc) dlsym(libHandle, "glTexImage3D" );
+ if (!pTexImage3D)
+ pTexImage3D = (TexImage3Dproc) dlsym(libHandle,"glTexImage3DEXT");
dlclose(libHandle);
#endif
}
/* Now call glTexImage3D */
- if (pTexImage3D)
- pTexImage3D(target, level, internalFormat, width, height,
- depth, border, format, type, pixels);
+ if (pTexImage3D)
+ pTexImage3D(target, level, internalFormat, width, height,
+ depth, border, format, type, pixels);
}
#else
#endif
static GLint imageSize3D(GLint width, GLint height, GLint depth,
- GLenum format, GLenum type)
+ GLenum format, GLenum type)
{
int components= elements_per_group(format,type);
- int bytes_per_row= bytes_per_element(type) * width;
+ int bytes_per_row= bytes_per_element(type) * width;
assert(width > 0 && height > 0 && depth > 0);
assert(type != GL_BITMAP);
return bytes_per_row * height * depth * components;
} /* imageSize3D() */
-static void fillImage3D(const PixelStorageModes *psm,
- GLint width, GLint height, GLint depth, GLenum format,
- GLenum type, GLboolean indexFormat,
+static void fillImage3D(const PixelStorageModes *psm,
+ GLint width, GLint height, GLint depth, GLenum format,
+ GLenum type, GLboolean indexFormat,
const void *userImage, GLushort *newImage)
{
int myswapBytes;
int elementsPerLine;
int rowsPerImage;
int imageSize;
- const GLubyte *start, *rowStart, *iter;
+ const GLubyte *start, *rowStart, *iter;
GLushort *iter2;
- int ww, hh, dd, k;
-
+ int ww, hh, dd, k;
+
myswapBytes= psm->unpack_swap_bytes;
components= elements_per_group(format,type);
if (psm->unpack_row_length > 0) {
if (elementSize == 1) myswapBytes= 0;
/* 3dstuff begin */
- if (psm->unpack_image_height > 0) {
- rowsPerImage= psm->unpack_image_height;
+ if (psm->unpack_image_height > 0) {
+ rowsPerImage= psm->unpack_image_height;
}
else {
rowsPerImage= height;
imageSize= rowsPerImage * rowSize; /* 3dstuff */
- start= (const GLubyte *)userImage + psm->unpack_skip_rows * rowSize +
- psm->unpack_skip_pixels * groupSize +
- /*3dstuff*/
- psm->unpack_skip_images * imageSize;
+ start= (const GLubyte *)userImage + psm->unpack_skip_rows * rowSize +
+ psm->unpack_skip_pixels * groupSize +
+ /*3dstuff*/
+ psm->unpack_skip_images * imageSize;
elementsPerLine = width * components;
iter2= newImage;
*iter2++ = (GLushort)(extractComponents[k]*65535);
}
break;
- case GL_UNSIGNED_BYTE_2_3_3_REV:
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
extract233rev(0,iter,extractComponents);
for (k = 0; k < 3; k++) {
*iter2++ = (GLushort)(extractComponents[k]*65535);
}
break;
- case GL_UNSIGNED_SHORT_5_6_5:
+ case GL_UNSIGNED_SHORT_5_6_5:
extract565(myswapBytes,iter,extractComponents);
for (k = 0; k < 3; k++) {
*iter2++ = (GLushort)(extractComponents[k]*65535);
}
break;
- case GL_UNSIGNED_SHORT_5_6_5_REV:
+ case GL_UNSIGNED_SHORT_5_6_5_REV:
extract565rev(myswapBytes,iter,extractComponents);
for (k = 0; k < 3; k++) {
*iter2++ = (GLushort)(extractComponents[k]*65535);
}
break;
- case GL_UNSIGNED_SHORT_4_4_4_4:
+ case GL_UNSIGNED_SHORT_4_4_4_4:
extract4444(myswapBytes,iter,extractComponents);
for (k = 0; k < 4; k++) {
*iter2++ = (GLushort)(extractComponents[k]*65535);
}
break;
- case GL_UNSIGNED_SHORT_4_4_4_4_REV:
+ case GL_UNSIGNED_SHORT_4_4_4_4_REV:
extract4444rev(myswapBytes,iter,extractComponents);
for (k = 0; k < 4; k++) {
*iter2++ = (GLushort)(extractComponents[k]*65535);
}
break;
- case GL_UNSIGNED_SHORT_5_5_5_1:
+ case GL_UNSIGNED_SHORT_5_5_5_1:
extract5551(myswapBytes,iter,extractComponents);
for (k = 0; k < 4; k++) {
*iter2++ = (GLushort)(extractComponents[k]*65535);
*iter2++ = widget.us[0];
}
break;
- case GL_UNSIGNED_INT_8_8_8_8:
+ case GL_UNSIGNED_INT_8_8_8_8:
extract8888(myswapBytes,iter,extractComponents);
for (k = 0; k < 4; k++) {
*iter2++ = (GLushort)(extractComponents[k]*65535);
}
break;
- case GL_UNSIGNED_INT_8_8_8_8_REV:
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
extract8888rev(myswapBytes,iter,extractComponents);
for (k = 0; k < 4; k++) {
*iter2++ = (GLushort)(extractComponents[k]*65535);
}
break;
- case GL_UNSIGNED_INT_10_10_10_2:
+ case GL_UNSIGNED_INT_10_10_10_2:
extract1010102(myswapBytes,iter,extractComponents);
for (k = 0; k < 4; k++) {
*iter2++ = (GLushort)(extractComponents[k]*65535);
}
}
break;
- default:
- assert(0);
+ default:
+ assert(0);
}
iter+= elementSize;
elements_per_group(format,0)]);
}
assert( iter == &((const GLubyte *)userImage)[rowSize*height*depth +
- psm->unpack_skip_rows * rowSize +
+ psm->unpack_skip_rows * rowSize +
psm->unpack_skip_pixels * groupSize +
/*3dstuff*/
psm->unpack_skip_images * imageSize] );
} /* fillImage3D () */
-static void scaleInternal3D(GLint components,
+static void scaleInternal3D(GLint components,
GLint widthIn, GLint heightIn, GLint depthIn,
const GLushort *dataIn,
GLint widthOut, GLint heightOut, GLint depthOut,
float x, lowx, highx, convx, halfconvx;
float y, lowy, highy, convy, halfconvy;
float z, lowz, highz, convz, halfconvz;
- float xpercent,ypercent,zpercent;
+ float xpercent,ypercent,zpercent;
float percent;
/* Max components in a format is 4, so... */
float totals[4];
halfconvx = convx/2;
halfconvy = convy/2;
halfconvz = convz/2;
- for (d = 0; d < depthOut; d++) {
+ for (d = 0; d < depthOut; d++) {
z = convz * (d+0.5);
if (depthIn > depthOut) {
highz = z + halfconvz;
percent = xpercent * ypercent * zpercent;
volume += percent;
- temp = (xindex + (yindex*widthIn) +
+ temp = (xindex + (yindex*widthIn) +
(zindex*widthIn*heightIn)) * components;
for (k = 0; k < components; k++) {
- assert(0 <= (temp+k) &&
- (temp+k) <
+ assert(0 <= (temp+k) &&
+ (temp+k) <
(widthIn*heightIn*depthIn*components));
totals[k] += dataIn[temp + k] * percent;
}
z = zint;
} /* while z */
- temp = (j + (i * widthOut) +
+ temp = (j + (i * widthOut) +
(d*widthOut*heightOut)) * components;
for (k = 0; k < components; k++) {
- /* totals[] should be rounded in the case of enlarging an
+ /* totals[] should be rounded in the case of enlarging an
* RGB ramp when the type is 332 or 4444
*/
- assert(0 <= (temp+k) &&
+ assert(0 <= (temp+k) &&
(temp+k) < (widthOut*heightOut*depthOut*components));
dataOut[temp + k] = (totals[k]+0.5)/volume;
}
elementSize= bytes_per_element(type);
groupSize= elementSize * components;
if (elementSize == 1) myswapBytes= 0;
-
+
/* 3dstuff begin */
if (psm->pack_image_height > 0) {
rowsPerImage= psm->pack_image_height;
rowsPerImage= height;
}
- /* 3dstuff end */
+ /* 3dstuff end */
rowSize = groupsPerLine * groupSize;
padding = rowSize % psm->pack_alignment;
if (padding) {
rowSize+= psm->pack_alignment - padding;
}
-
+
imageSize= rowsPerImage * rowSize; /* 3dstuff */
start = (GLubyte *)userImage + psm->pack_skip_rows * rowSize +
- psm->pack_skip_pixels * groupSize +
- /*3dstuff*/
- psm->pack_skip_images * imageSize;
+ psm->pack_skip_pixels * groupSize +
+ /*3dstuff*/
+ psm->pack_skip_images * imageSize;
elementsPerLine= width * components;
iter2 = oldImage;
- for (dd= 0; dd < depth; dd++) {
+ for (dd= 0; dd < depth; dd++) {
rowStart= start;
for (ii= 0; ii< height; ii++) {
*((GLbyte *) iter) = *iter2++ >> 9;
}
break;
- case GL_UNSIGNED_BYTE_3_3_2:
+ case GL_UNSIGNED_BYTE_3_3_2:
for (k = 0; k < 3; k++) {
shoveComponents[k]= *iter2++ / 65535.0;
- }
+ }
shove332(shoveComponents,0,(void *)iter);
break;
case GL_UNSIGNED_BYTE_2_3_3_REV:
for (k = 0; k < 3; k++) {
shoveComponents[k]= *iter2++ / 65535.0;
- }
+ }
shove233rev(shoveComponents,0,(void *)iter);
- break;
- case GL_UNSIGNED_SHORT_5_6_5:
+ break;
+ case GL_UNSIGNED_SHORT_5_6_5:
for (k = 0; k < 3; k++) {
shoveComponents[k]= *iter2++ / 65535.0;
- }
+ }
shove565(shoveComponents,0,(void *)&widget.us[0]);
if (myswapBytes) {
iter[0] = widget.ub[1];
*(GLushort *)iter = widget.us[0];
}
break;
- case GL_UNSIGNED_SHORT_5_6_5_REV:
+ case GL_UNSIGNED_SHORT_5_6_5_REV:
for (k = 0; k < 3; k++) {
shoveComponents[k]= *iter2++ / 65535.0;
- }
+ }
shove565rev(shoveComponents,0,(void *)&widget.us[0]);
if (myswapBytes) {
iter[0] = widget.ub[1];
case GL_UNSIGNED_SHORT_4_4_4_4:
for (k = 0; k < 4; k++) {
shoveComponents[k]= *iter2++ / 65535.0;
- }
+ }
shove4444(shoveComponents,0,(void *)&widget.us[0]);
if (myswapBytes) {
iter[0] = widget.ub[1];
case GL_UNSIGNED_SHORT_4_4_4_4_REV:
for (k = 0; k < 4; k++) {
shoveComponents[k]= *iter2++ / 65535.0;
- }
+ }
shove4444rev(shoveComponents,0,(void *)&widget.us[0]);
if (myswapBytes) {
iter[0] = widget.ub[1];
case GL_UNSIGNED_SHORT_5_5_5_1:
for (k = 0; k < 4; k++) {
shoveComponents[k]= *iter2++ / 65535.0;
- }
+ }
shove5551(shoveComponents,0,(void *)&widget.us[0]);
if (myswapBytes) {
iter[0] = widget.ub[1];
case GL_UNSIGNED_SHORT_1_5_5_5_REV:
for (k = 0; k < 4; k++) {
shoveComponents[k]= *iter2++ / 65535.0;
- }
+ }
shove1555rev(shoveComponents,0,(void *)&widget.us[0]);
if (myswapBytes) {
iter[0] = widget.ub[1];
case GL_UNSIGNED_INT_8_8_8_8:
for (k = 0; k < 4; k++) {
shoveComponents[k]= *iter2++ / 65535.0;
- }
+ }
shove8888(shoveComponents,0,(void *)&widget.ui);
if (myswapBytes) {
iter[3] = widget.ub[0];
case GL_UNSIGNED_INT_8_8_8_8_REV:
for (k = 0; k < 4; k++) {
shoveComponents[k]= *iter2++ / 65535.0;
- }
+ }
shove8888rev(shoveComponents,0,(void *)&widget.ui);
if (myswapBytes) {
iter[3] = widget.ub[0];
*(GLuint *)iter= widget.ui;
}
break;
- case GL_UNSIGNED_INT_10_10_10_2:
+ case GL_UNSIGNED_INT_10_10_10_2:
for (k = 0; k < 4; k++) {
shoveComponents[k]= *iter2++ / 65535.0;
- }
+ }
shove1010102(shoveComponents,0,(void *)&widget.ui);
if (myswapBytes) {
iter[3] = widget.ub[0];
*(GLuint *)iter= widget.ui;
}
break;
- case GL_UNSIGNED_INT_2_10_10_10_REV:
+ case GL_UNSIGNED_INT_2_10_10_10_REV:
for (k = 0; k < 4; k++) {
shoveComponents[k]= *iter2++ / 65535.0;
- }
+ }
shove2101010rev(shoveComponents,0,(void *)&widget.ui);
if (myswapBytes) {
iter[3] = widget.ub[0];
elements_per_group(format,0)]);
}
assert( iter == &((GLubyte *)userImage)[rowSize*height*depth +
- psm->unpack_skip_rows * rowSize +
+ psm->unpack_skip_rows * rowSize +
psm->unpack_skip_pixels * groupSize +
/*3dstuff*/
psm->unpack_skip_images * imageSize] );
} /* emptyImage3D() */
-static
-int gluScaleImage3D(GLenum format,
+static
+int gluScaleImage3D(GLenum format,
GLint widthIn, GLint heightIn, GLint depthIn,
- GLenum typeIn, const void *dataIn,
+ GLenum typeIn, const void *dataIn,
GLint widthOut, GLint heightOut, GLint depthOut,
GLenum typeOut, void *dataOut)
{
GLushort *beforeImage, *afterImage;
PixelStorageModes psm;
- if (widthIn == 0 || heightIn == 0 || depthIn == 0 ||
+ if (widthIn == 0 || heightIn == 0 || depthIn == 0 ||
widthOut == 0 || heightOut == 0 || depthOut == 0) {
return 0;
}
- if (widthIn < 0 || heightIn < 0 || depthIn < 0 ||
+ if (widthIn < 0 || heightIn < 0 || depthIn < 0 ||
widthOut < 0 || heightOut < 0 || depthOut < 0) {
return GLU_INVALID_VALUE;
}
-
+
if (!legalFormat(format) || !legalType(typeIn) || !legalType(typeOut) ||
typeIn == GL_BITMAP || typeOut == GL_BITMAP) {
return GLU_INVALID_ENUM;
}
beforeImage = malloc(imageSize3D(widthIn, heightIn, depthIn, format,
- GL_UNSIGNED_SHORT));
- afterImage = malloc(imageSize3D(widthOut, heightOut, depthOut, format,
+ GL_UNSIGNED_SHORT));
+ afterImage = malloc(imageSize3D(widthOut, heightOut, depthOut, format,
GL_UNSIGNED_SHORT));
if (beforeImage == NULL || afterImage == NULL) {
+ free(beforeImage);
+ free(afterImage);
return GLU_OUT_OF_MEMORY;
- }
+ }
retrieveStoreModes3D(&psm);
fillImage3D(&psm,widthIn,heightIn,depthIn,format,typeIn, is_index(format),
static void closestFit3D(GLenum target, GLint width, GLint height, GLint depth,
- GLint internalFormat, GLenum format, GLenum type,
+ GLint internalFormat, GLenum format, GLenum type,
GLint *newWidth, GLint *newHeight, GLint *newDepth)
{
GLint widthPowerOf2= nearestPower(width);
- GLint heightPowerOf2= nearestPower(height);
+ GLint heightPowerOf2= nearestPower(height);
GLint depthPowerOf2= nearestPower(depth);
GLint proxyWidth;
/* compute level 1 width & height & depth, clamping each at 1 */
GLint widthAtLevelOne= (widthPowerOf2 > 1) ?
widthPowerOf2 >> 1 :
- widthPowerOf2;
+ widthPowerOf2;
GLint heightAtLevelOne= (heightPowerOf2 > 1) ?
heightPowerOf2 >> 1 :
- heightPowerOf2;
+ heightPowerOf2;
GLint depthAtLevelOne= (depthPowerOf2 > 1) ?
depthPowerOf2 >> 1 :
- depthPowerOf2;
- GLenum proxyTarget;
- assert(widthAtLevelOne > 0);
+ depthPowerOf2;
+ GLenum proxyTarget = GL_PROXY_TEXTURE_3D;
+ assert(widthAtLevelOne > 0);
assert(heightAtLevelOne > 0);
assert(depthAtLevelOne > 0);
/* does width x height x depth at level 1 & all their mipmaps fit? */
- if (target == GL_TEXTURE_3D || target == GL_PROXY_TEXTURE_3D) {
- proxyTarget = GL_PROXY_TEXTURE_3D;
- gluTexImage3D(proxyTarget, 1, /* must be non-zero */
- internalFormat,
- widthAtLevelOne,heightAtLevelOne,depthAtLevelOne,
- 0,format,type,NULL);
- }
+ assert(target == GL_TEXTURE_3D || target == GL_PROXY_TEXTURE_3D);
+ gluTexImage3D(proxyTarget, 1, /* must be non-zero */
+ internalFormat,
+ widthAtLevelOne,heightAtLevelOne,depthAtLevelOne,
+ 0,format,type,NULL);
glGetTexLevelParameteriv(proxyTarget, 1,GL_TEXTURE_WIDTH,&proxyWidth);
/* does it fit??? */
if (proxyWidth == 0) { /* nope, so try again with these sizes */
widthPowerOf2= widthAtLevelOne;
heightPowerOf2= heightAtLevelOne;
depthPowerOf2= depthAtLevelOne;
- }
+ }
/* else it does fit */
} while (proxyWidth == 0);
/* loop must terminate! */
(const GLfloat [],int, void *),
GLint width, GLint height, GLint depth,
const void *dataIn, void *dataOut,
- GLint pixelSizeInBytes,
- GLint rowSizeInBytes,
+ GLint pixelSizeInBytes,
+ GLint rowSizeInBytes,
GLint imageSizeInBytes,
GLint isSwap)
{
}
totals[cc]/= (float)BOX2;
} /* for cc */
-
+
(*shovePackedPixel)(totals,outIndex,dataOut);
outIndex++;
/* skip over to next group of 2 */
for (ii= 0; ii< halfDepth; ii++) {
for (jj= 0; jj< halfWidth; jj++) {
float totals[4];
- float extractTotals[BOX4][4];
+ float extractTotals[BOX4][4];
int cc;
(*extractPackedPixel)(isSwap,src,
(src+imageSizeInBytes+pixelSizeInBytes),
&extractTotals[3][0]);
for (cc = 0; cc < components; cc++) {
- int kk;
+ int kk;
/* grab 4 pixels to average */
totals[cc]= 0.0;
/* totals[RED]= extractTotals[0][RED]+extractTotals[1][RED]+
- * extractTotals[2][RED]+extractTotals[3][RED];
+ * extractTotals[2][RED]+extractTotals[3][RED];
* totals[RED]/= 4.0;
*/
for (kk = 0; kk < BOX4; kk++) {
/* grab 4 pixels to average */
totals[cc]= 0.0;
/* totals[RED]= extractTotals[0][RED]+extractTotals[1][RED]+
- * extractTotals[2][RED]+extractTotals[3][RED];
+ * extractTotals[2][RED]+extractTotals[3][RED];
* totals[RED]/= 4.0;
*/
for (kk = 0; kk < BOX4; kk++) {
/* skip over to next vertical square of 4 */
src+= imageSizeInBytes + imageSizeInBytes;
}
- }
+ }
/* assert() */
}
(const GLfloat [],int, void *),
GLint width, GLint height, GLint depth,
const void *dataIn, void *dataOut,
- GLint pixelSizeInBytes,
- GLint rowSizeInBytes,
+ GLint pixelSizeInBytes,
+ GLint rowSizeInBytes,
GLint imageSizeInBytes,
GLint isSwap)
{
return;
}
/* a horizontal or vertical slice viewed from top */
- else if (width == 1 || height == 1) {
+ else if (width == 1 || height == 1) {
assert(1 <= depth);
halveImagePackedPixelSlice(components,
extractPackedPixel,shovePackedPixel,
width, height, depth, dataIn, dataOut,
- pixelSizeInBytes, rowSizeInBytes,
+ pixelSizeInBytes, rowSizeInBytes,
imageSizeInBytes, isSwap);
return;
}
int halfWidth= width / 2;
int halfHeight= height / 2;
- int halfDepth= depth / 2;
+ int halfDepth= depth / 2;
const char *src= (const char *) dataIn;
int padBytes= rowSizeInBytes - (width*pixelSizeInBytes);
int outIndex= 0;
for (ii= 0; ii< halfHeight; ii++) {
for (jj= 0; jj< halfWidth; jj++) {
#define BOX8 8
- float totals[4]; /* 4 is maximum components */
+ float totals[4]; /* 4 is maximum components */
float extractTotals[BOX8][4]; /* 4 is maximum components */
int cc;
(*extractPackedPixel)(isSwap,
(src+rowSizeInBytes+pixelSizeInBytes+imageSizeInBytes),
&extractTotals[7][0]);
- for (cc = 0; cc < components; cc++) {
+ for (cc = 0; cc < components; cc++) {
int kk;
/* grab 8 pixels to average */
totals[cc]= 0.0;
/* totals[RED]= extractTotals[0][RED]+extractTotals[1][RED]+
- * extractTotals[2][RED]+extractTotals[3][RED]+
- * extractTotals[4][RED]+extractTotals[5][RED]+
- * extractTotals[6][RED]+extractTotals[7][RED];
+ * extractTotals[2][RED]+extractTotals[3][RED]+
+ * extractTotals[4][RED]+extractTotals[5][RED]+
+ * extractTotals[6][RED]+extractTotals[7][RED];
* totals[RED]/= 8.0;
*/
for (kk = 0; kk < BOX8; kk++) {
/* src is at beginning of a row here, but it's the second row of
* the square block of 4 pixels that we just worked on so we
- * need to go one more row.
- * i.e.,
- * OO...
- * here -->OO...
- * but want -->OO...
- * OO...
- * ...
+ * need to go one more row.
+ * i.e.,
+ * OO...
+ * here -->OO...
+ * but want -->OO...
+ * OO...
+ * ...
*/
src+= rowSizeInBytes;
}
- src+= imageSizeInBytes;
+ src+= imageSizeInBytes;
} /* for dd */
/* both pointers must reach one byte after the end */
} /* halveImagePackedPixel3D() */
-static int gluBuild3DMipmapLevelsCore(GLenum target, GLint internalFormat,
- GLsizei width,
- GLsizei height,
+static int gluBuild3DMipmapLevelsCore(GLenum target, GLint internalFormat,
+ GLsizei width,
+ GLsizei height,
GLsizei depth,
- GLsizei widthPowerOf2,
- GLsizei heightPowerOf2,
+ GLsizei widthPowerOf2,
+ GLsizei heightPowerOf2,
GLsizei depthPowerOf2,
- GLenum format, GLenum type,
+ GLenum format, GLenum type,
GLint userLevel,
GLint baseLevel,GLint maxLevel,
const void *data)
if (elementSize == 1) myswapBytes = 0;
/* 3dstuff begin */
- if (psm.unpack_image_height > 0) {
- rowsPerImage= psm.unpack_image_height;
+ if (psm.unpack_image_height > 0) {
+ rowsPerImage= psm.unpack_image_height;
}
else {
rowsPerImage= height;
imageSize= rowsPerImage * rowSize; /* 3dstuff */
- usersImage = (const GLubyte *)data + psm.unpack_skip_rows * rowSize +
+ usersImage = (const GLubyte *)data + psm.unpack_skip_rows * rowSize +
psm.unpack_skip_pixels * groupSize +
/* 3dstuff */
- psm.unpack_skip_images * imageSize;
+ psm.unpack_skip_images * imageSize;
glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
if (width == newWidth && height == newHeight && depth == newDepth) {
/* Use usersImage for level userLevel */
if (baseLevel <= level && level <= maxLevel) {
- gluTexImage3D(target, level, internalFormat, width,
+ gluTexImage3D(target, level, internalFormat, width,
height, depth, 0, format, type,
usersImage);
}
/* clamp to 1 */
if (nextWidth < 1) nextWidth= 1;
if (nextHeight < 1) nextHeight= 1;
- if (nextDepth < 1) nextDepth= 1;
+ if (nextDepth < 1) nextDepth= 1;
memReq = imageSize3D(nextWidth, nextHeight, nextDepth, format, type);
}
switch(type) {
case GL_FLOAT:
dstImage = (GLfloat *)malloc(memReq);
break;
- case GL_UNSIGNED_BYTE_3_3_2:
- case GL_UNSIGNED_BYTE_2_3_3_REV:
+ case GL_UNSIGNED_BYTE_3_3_2:
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
dstImage = (GLubyte *)malloc(memReq);
break;
case GL_UNSIGNED_SHORT_5_6_5:
case GL_UNSIGNED_INT_8_8_8_8_REV:
case GL_UNSIGNED_INT_10_10_10_2:
case GL_UNSIGNED_INT_2_10_10_10_REV:
- dstImage = (GLuint *)malloc(memReq);
+ dstImage = (GLuint *)malloc(memReq);
break;
default:
return GLU_INVALID_ENUM; /* assertion */
}
break;
case GL_SHORT:
- if (depth > 1) {
+ if (depth > 1) {
halveImage3D(cmpts,extractSshort,shoveSshort,
width,height,depth,
usersImage,dstImage,elementSize,groupSize,rowSize,
}
break;
case GL_UNSIGNED_INT:
- if (depth > 1) {
+ if (depth > 1) {
halveImage3D(cmpts,extractUint,shoveUint,
width,height,depth,
usersImage,dstImage,elementSize,groupSize,rowSize,
}
break;
case GL_INT:
- if (depth > 1) {
+ if (depth > 1) {
halveImage3D(cmpts,extractSint,shoveSint,
width,height,depth,
usersImage,dstImage,elementSize,groupSize,rowSize,
elementSize,rowSize,groupSize,myswapBytes);
}
break;
- case GL_UNSIGNED_BYTE_3_3_2:
+ case GL_UNSIGNED_BYTE_3_3_2:
assert(format == GL_RGB);
halveImagePackedPixel3D(3,extract332,shove332,
width,height,depth,usersImage,dstImage,
halveImagePackedPixel3D(4,extract4444,shove4444,
width,height,depth,usersImage,dstImage,
elementSize,rowSize,imageSize,myswapBytes);
- break;
+ break;
case GL_UNSIGNED_SHORT_4_4_4_4_REV:
halveImagePackedPixel3D(4,extract4444rev,shove4444rev,
width,height,depth,usersImage,dstImage,
elementSize,rowSize,imageSize,myswapBytes);
- break;
+ break;
case GL_UNSIGNED_SHORT_5_5_5_1:
halveImagePackedPixel3D(4,extract5551,shove5551,
width,height,depth,usersImage,dstImage,
elementSize,rowSize,imageSize,myswapBytes);
- break;
+ break;
case GL_UNSIGNED_SHORT_1_5_5_5_REV:
halveImagePackedPixel3D(4,extract1555rev,shove1555rev,
width,height,depth,usersImage,dstImage,
elementSize,rowSize,imageSize,myswapBytes);
- break;
+ break;
case GL_UNSIGNED_INT_8_8_8_8:
halveImagePackedPixel3D(4,extract8888,shove8888,
width,height,depth,usersImage,dstImage,
elementSize,rowSize,imageSize,myswapBytes);
- break;
+ break;
case GL_UNSIGNED_INT_8_8_8_8_REV:
halveImagePackedPixel3D(4,extract8888rev,shove8888rev,
width,height,depth,usersImage,dstImage,
elementSize,rowSize,imageSize,myswapBytes);
- break;
+ break;
case GL_UNSIGNED_INT_10_10_10_2:
halveImagePackedPixel3D(4,extract1010102,shove1010102,
width,height,depth,usersImage,dstImage,
elementSize,rowSize,imageSize,myswapBytes);
- break;
+ break;
case GL_UNSIGNED_INT_2_10_10_10_REV:
halveImagePackedPixel3D(4,extract2101010rev,shove2101010rev,
width,height,depth,usersImage,dstImage,
elementSize,rowSize,imageSize,myswapBytes);
- break;
+ break;
default:
assert(0);
break;
newDepth = depth/2;
/* clamp to 1 */
if (newWidth < 1) newWidth= 1;
- if (newHeight < 1) newHeight= 1;
+ if (newHeight < 1) newHeight= 1;
if (newDepth < 1) newDepth= 1;
myswapBytes = 0;
glPixelStorei(GL_UNPACK_SWAP_BYTES, psm.unpack_swap_bytes);
glPixelStorei(GL_UNPACK_SKIP_IMAGES, psm.unpack_skip_images);
glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, psm.unpack_image_height);
+ free(srcImage);
return GLU_OUT_OF_MEMORY;
}
/* level userLevel+1 is in srcImage; level userLevel already saved */
- level = userLevel+1;
+ level = userLevel+1;
} else {/* user's image is *not* nice power-of-2 sized square */
memReq = imageSize3D(newWidth, newHeight, newDepth, format, type);
switch(type) {
dstImage = (GLuint *)malloc(memReq);
break;
default:
- return GLU_INVALID_ENUM; /* assertion */
+ return GLU_INVALID_ENUM; /* assertion */
}
if (dstImage == NULL) {
int nextHeight= newHeight/2;
int nextDepth= newDepth/2;
if (nextWidth < 1) nextWidth= 1;
- if (nextHeight < 1) nextHeight= 1;
- if (nextDepth < 1) nextDepth= 1;
+ if (nextHeight < 1) nextHeight= 1;
+ if (nextDepth < 1) nextDepth= 1;
memReq = imageSize3D(nextWidth, nextHeight, nextDepth, format, type);
}
glPixelStorei(GL_UNPACK_SWAP_BYTES, psm.unpack_swap_bytes);
glPixelStorei(GL_UNPACK_SKIP_IMAGES, psm.unpack_skip_images);
glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, psm.unpack_image_height);
+ free(srcImage);
return GLU_OUT_OF_MEMORY;
}
}
/* level userLevel is in srcImage; nothing saved yet */
- level = userLevel;
+ level = userLevel;
}
glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE);
}
break;
case GL_UNSIGNED_SHORT:
- if (newDepth > 1) {
+ if (newDepth > 1) {
halveImage3D(cmpts,extractUshort,shoveUshort,
newWidth,newHeight,newDepth,
srcImage,dstImage,elementSize,groupSize,rowSize,
srcImage,dstImage,elementSize,rowSize,
imageSize,myswapBytes);
break;
- case GL_UNSIGNED_SHORT_5_5_5_1:
+ case GL_UNSIGNED_SHORT_5_5_5_1:
halveImagePackedPixel3D(4,extract5551,shove5551,
newWidth,newHeight,newDepth,
srcImage,dstImage,elementSize,rowSize,
imageSize,myswapBytes);
break;
- case GL_UNSIGNED_SHORT_1_5_5_5_REV:
+ case GL_UNSIGNED_SHORT_1_5_5_5_REV:
halveImagePackedPixel3D(4,extract1555rev,shove1555rev,
newWidth,newHeight,newDepth,
srcImage,dstImage,elementSize,rowSize,
} /* gluBuild3DMipmapLevelsCore() */
GLint GLAPIENTRY
-gluBuild3DMipmapLevels(GLenum target, GLint internalFormat,
+gluBuild3DMipmapLevels(GLenum target, GLint internalFormat,
GLsizei width, GLsizei height, GLsizei depth,
- GLenum format, GLenum type,
+ GLenum format, GLenum type,
GLint userLevel, GLint baseLevel, GLint maxLevel,
const void *data)
{
if (level > levels) levels=level;
levels+= userLevel;
- if (!isLegalLevels(userLevel,baseLevel,maxLevel,levels))
+ if (!isLegalLevels(userLevel,baseLevel,maxLevel,levels))
return GLU_INVALID_VALUE;
- return gluBuild3DMipmapLevelsCore(target, internalFormat,
+ return gluBuild3DMipmapLevelsCore(target, internalFormat,
width, height, depth,
width, height, depth,
- format, type,
+ format, type,
userLevel, baseLevel, maxLevel,
data);
} /* gluBuild3DMipmapLevels() */
GLint GLAPIENTRY
-gluBuild3DMipmaps(GLenum target, GLint internalFormat,
+gluBuild3DMipmaps(GLenum target, GLint internalFormat,
GLsizei width, GLsizei height, GLsizei depth,
GLenum format, GLenum type, const void *data)
{
level = computeLog(depthPowerOf2);
if (level > levels) levels=level;
- return gluBuild3DMipmapLevelsCore(target, internalFormat,
+ return gluBuild3DMipmapLevelsCore(target, internalFormat,
width, height, depth,
- widthPowerOf2, heightPowerOf2,
+ widthPowerOf2, heightPowerOf2,
depthPowerOf2,
format, type, 0, 0, levels,
data);
ushort= *(const GLushort *)uitem;
}
- assert(ushort <= 65535);
+ assert(ushort <= 65535);
return (GLdouble)ushort;
} /* extractUshort() */
sshort= *(const GLshort *)sitem;
}
- assert(sshort <= 32767);
+ assert(sshort <= 32767);
return (GLdouble)sshort;
} /* extractSshort() */
uint= *(const GLuint *)uitem;
}
- assert(uint <= 0xffffffff);
+ assert(uint <= 0xffffffff);
return (GLdouble)uint;
} /* extractUint() */
static void shoveUint(GLdouble value, int index, void *data)
{
- assert(0.0 <= value && value <= (GLdouble) UINT_MAX);
+ assert(0.0 <= value && value <= (GLdouble) UINT_MAX);
((GLuint *)data)[index]= (GLuint)value;
} /* shoveUint() */
sint= *(const GLint *)sitem;
}
- assert(sint <= 0x7fffffff);
+ assert(sint <= 0x7fffffff);
return (GLdouble)sint;
} /* extractSint() */
static void shoveSint(GLdouble value, int index, void *data)
{
- assert(0.0 <= value && value <= (GLdouble) INT_MAX);
+ assert(0.0 <= value && value <= (GLdouble) INT_MAX);
((GLint *)data)[index]= (GLint)value;
} /* shoveSint() */
ffloat= *(const GLfloat *)item;
}
- assert(ffloat <= 1.0);
+ assert(ffloat <= 1.0);
return (GLdouble)ffloat;
} /* extractFloat() */
GLint width, GLint height, GLint depth,
const void *dataIn, void *dataOut,
GLint elementSizeInBytes,
- GLint groupSizeInBytes,
- GLint rowSizeInBytes,
+ GLint groupSizeInBytes,
+ GLint rowSizeInBytes,
GLint imageSizeInBytes,
GLint isSwap)
{
int halfHeight= height / 2;
int halfDepth= depth / 2;
const char *src= (const char *)dataIn;
- int padBytes= rowSizeInBytes - (width * groupSizeInBytes);
+ int rowPadBytes= rowSizeInBytes - (width * groupSizeInBytes);
+ int imagePadBytes= imageSizeInBytes - (width*height*groupSizeInBytes);
int outIndex= 0;
assert((width == 1 || height == 1) && depth >= 2);
for (cc = 0; cc < components; cc++) {
int kk;
double totals[4];
- double extractTotals[BOX4][4];
+ double extractTotals[BOX4][4];
extractTotals[0][cc]=(*extract)(isSwap,src);
extractTotals[1][cc]=(*extract)(isSwap,
/* grab 4 pixels to average */
totals[cc]= 0.0;
/* totals[RED]= extractTotals[0][RED]+extractTotals[1][RED]+
- * extractTotals[2][RED]+extractTotals[3][RED];
+ * extractTotals[2][RED]+extractTotals[3][RED];
* totals[RED]/= 4.0;
*/
for (kk = 0; kk < BOX4; kk++) {
outIndex++;
src+= elementSizeInBytes;
- } /* for cc */
+ } /* for cc */
/* skip over to next horizontal square of 4 */
src+= groupSizeInBytes;
} /* for jj */
- src+= padBytes;
+ src+= rowPadBytes;
src+= rowSizeInBytes;
} /* for ii */
assert(src == &((const char *)dataIn)[rowSizeInBytes*height*depth]);
assert(outIndex == halfWidth * halfDepth * components);
- }
+ }
else if (width == 1) { /* vertical slice viewed from top */
/* printf("vertical slice\n"); */
assert(height != 1);
/* grab 4 pixels to average */
totals[cc]= 0.0;
/* totals[RED]= extractTotals[0][RED]+extractTotals[1][RED]+
- * extractTotals[2][RED]+extractTotals[3][RED];
+ * extractTotals[2][RED]+extractTotals[3][RED];
* totals[RED]/= 4.0;
*/
for (kk = 0; kk < BOX4; kk++) {
src+= elementSizeInBytes;
} /* for cc */
- src+= padBytes;
+ src+= rowPadBytes;
/* skip over to next vertical square of 4 */
src+= rowSizeInBytes;
} /* for jj */
+ src+= imagePadBytes;
src+= imageSizeInBytes;
- } /* for ii */
+ } /* for ii */
assert(src == &((const char *)dataIn)[rowSizeInBytes*height*depth]);
assert(outIndex == halfHeight * halfDepth * components);
GLint width, GLint height, GLint depth,
const void *dataIn, void *dataOut,
GLint elementSizeInBytes,
- GLint groupSizeInBytes,
- GLint rowSizeInBytes,
+ GLint groupSizeInBytes,
+ GLint rowSizeInBytes,
GLint imageSizeInBytes,
GLint isSwap)
{
- assert(depth > 1);
+ assert(depth > 1);
/* a horizontal/vertical/one-column slice viewed from top */
- if (width == 1 || height == 1) {
+ if (width == 1 || height == 1) {
assert(1 <= depth);
- halveImageSlice(components,extract,shove, width, height, depth,
- dataIn, dataOut, elementSizeInBytes, groupSizeInBytes,
+ halveImageSlice(components,extract,shove, width, height, depth,
+ dataIn, dataOut, elementSizeInBytes, groupSizeInBytes,
rowSizeInBytes, imageSizeInBytes, isSwap);
return;
}
int halfWidth= width / 2;
int halfHeight= height / 2;
- int halfDepth= depth / 2;
+ int halfDepth= depth / 2;
const char *src= (const char *) dataIn;
- int padBytes= rowSizeInBytes - (width*groupSizeInBytes);
+ int rowPadBytes= rowSizeInBytes - (width*groupSizeInBytes);
+ int imagePadBytes= imageSizeInBytes - (width*height*groupSizeInBytes);
int outIndex= 0;
for (dd= 0; dd < halfDepth; dd++) {
totals[cc]= 0.0;
/* totals[RED]= extractTotals[0][RED]+extractTotals[1][RED]+
- * extractTotals[2][RED]+extractTotals[3][RED]+
- * extractTotals[4][RED]+extractTotals[5][RED]+
- * extractTotals[6][RED]+extractTotals[7][RED];
+ * extractTotals[2][RED]+extractTotals[3][RED]+
+ * extractTotals[4][RED]+extractTotals[5][RED]+
+ * extractTotals[6][RED]+extractTotals[7][RED];
* totals[RED]/= 8.0;
*/
for (kk = 0; kk < BOX8; kk++) {
src+= groupSizeInBytes;
} /* for jj */
/* skip past pad bytes, if any, to get to next row */
- src+= padBytes;
+ src+= rowPadBytes;
/* src is at beginning of a row here, but it's the second row of
* the square block of 4 pixels that we just worked on so we
- * need to go one more row.
- * i.e.,
- * OO...
- * here -->OO...
- * but want -->OO...
- * OO...
- * ...
+ * need to go one more row.
+ * i.e.,
+ * OO...
+ * here -->OO...
+ * but want -->OO...
+ * OO...
+ * ...
*/
src+= rowSizeInBytes;
} /* for ii */
- src+= imageSizeInBytes;
+ /* skip past pad bytes, if any, to get to next image */
+ src+= imagePadBytes;
+
+ src+= imageSizeInBytes;
} /* for dd */
/* both pointers must reach one byte after the end */
projects / mesa.git / blobdiff