-/* $Id: image.c,v 1.13 1999/11/08 07:36:44 brianp Exp $ */
+/**
+ * \file image.c
+ * Image handling.
+ */
/*
* Mesa 3-D graphics library
- * Version: 3.1
- *
- * Copyright (C) 1999 Brian Paul All Rights Reserved.
- *
+ * Version: 5.1
+ *
+ * Copyright (C) 1999-2003 Brian Paul 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 and this permission notice 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
*/
-
-#ifdef PC_HEADER
-#include "all.h"
-#else
-#ifndef XFree86Server
-#include <assert.h>
-#include <stdlib.h>
-#include <string.h>
-#else
-#include "GL/xf86glx.h"
-#endif
+#include "glheader.h"
+#include "colormac.h"
#include "context.h"
#include "image.h"
+#include "imports.h"
+#include "histogram.h"
#include "macros.h"
-#include "mmath.h"
#include "pixel.h"
-#include "types.h"
-#endif
+#include "mtypes.h"
+/** Compute ceiling of integer quotient of A divided by B. */
+#define CEILING( A, B ) ( (A) % (B) == 0 ? (A)/(B) : (A)/(B)+1 )
-/*
+
+/**
+ * Image packing parameters for Mesa's internal images.
+ *
+ * _mesa_unpack_image() returns image data in this format. When we execute
+ * image commands (glDrawPixels(), glTexImage(), etc) from within display lists
+ * we have to be sure to set the current unpacking parameters to these values!
+ */
+const struct gl_pixelstore_attrib _mesa_native_packing = {
+ 1, /* Alignment */
+ 0, /* RowLength */
+ 0, /* SkipPixels */
+ 0, /* SkipRows */
+ 0, /* ImageHeight */
+ 0, /* SkipImages */
+ GL_FALSE, /* SwapBytes */
+ GL_FALSE, /* LsbFirst */
+ GL_FALSE, /* ClientStorage */
+ GL_FALSE /* Invert */
+};
+
+
+/**
* Flip the 8 bits in each byte of the given array.
+ *
+ * \param p array.
+ * \param n number of bytes.
+ *
+ * \todo try this trick to flip bytes someday:
+ * \code
+ * v = ((v & 0x55555555) << 1) | ((v >> 1) & 0x55555555);
+ * v = ((v & 0x33333333) << 2) | ((v >> 2) & 0x33333333);
+ * v = ((v & 0x0f0f0f0f) << 4) | ((v >> 4) & 0x0f0f0f0f);
+ * \endcode
*/
-void gl_flip_bytes( GLubyte *p, GLuint n )
+static void
+flip_bytes( GLubyte *p, GLuint n )
{
register GLuint i, a, b;
for (i=0;i<n;i++) {
- b = (GLuint) p[i];
+ b = (GLuint) p[i]; /* words are often faster than bytes */
a = ((b & 0x01) << 7) |
((b & 0x02) << 5) |
((b & 0x04) << 3) |
}
-/*
+/**
* Flip the order of the 2 bytes in each word in the given array.
+ *
+ * \param p array.
+ * \param n number of words.
*/
-void gl_swap2( GLushort *p, GLuint n )
+void
+_mesa_swap2( GLushort *p, GLuint n )
{
register GLuint i;
/*
* Flip the order of the 4 bytes in each word in the given array.
*/
-void gl_swap4( GLuint *p, GLuint n )
+void
+_mesa_swap4( GLuint *p, GLuint n )
{
register GLuint i, a, b;
}
-
-
-/*
- * Return the size, in bytes, of the given GL datatype.
- * Return 0 if GL_BITMAP.
- * Return -1 if invalid type enum.
+/**
+ * Get the size of a GL data type.
+ *
+ * \param type GL data type.
+ *
+ * \return the size, in bytes, of the given data type, 0 if a GL_BITMAP, or -1
+ * if an invalid type enum.
*/
-GLint gl_sizeof_type( GLenum type )
+GLint _mesa_sizeof_type( GLenum type )
{
switch (type) {
case GL_BITMAP:
return sizeof(GLint);
case GL_FLOAT:
return sizeof(GLfloat);
+ case GL_HALF_FLOAT_NV:
+ return sizeof(GLhalfNV);
default:
return -1;
}
}
-/*
- * Same as gl_sizeof_packed_type() but we also accept the
- * packed pixel format datatypes.
+/**
+ * Same as _mesa_sizeof_type() but also accepting the packed pixel
+ * format data types.
*/
-GLint gl_sizeof_packed_type( GLenum type )
+GLint _mesa_sizeof_packed_type( GLenum type )
{
switch (type) {
case GL_BITMAP:
return sizeof(GLuint);
case GL_INT:
return sizeof(GLint);
+ case GL_HALF_FLOAT_NV:
+ return sizeof(GLhalfNV);
case GL_FLOAT:
return sizeof(GLfloat);
case GL_UNSIGNED_BYTE_3_3_2:
case GL_UNSIGNED_BYTE_2_3_3_REV:
return sizeof(GLubyte);
case GL_UNSIGNED_SHORT_5_6_5:
- return sizeof(GLshort);
+ return sizeof(GLushort);
case GL_UNSIGNED_SHORT_5_6_5_REV:
- return sizeof(GLshort);
+ return sizeof(GLushort);
case GL_UNSIGNED_SHORT_4_4_4_4:
- return sizeof(GLshort);
+ return sizeof(GLushort);
case GL_UNSIGNED_SHORT_4_4_4_4_REV:
- return sizeof(GLshort);
+ return sizeof(GLushort);
case GL_UNSIGNED_SHORT_5_5_5_1:
- return sizeof(GLshort);
+ return sizeof(GLushort);
case GL_UNSIGNED_SHORT_1_5_5_5_REV:
- return sizeof(GLshort);
+ return sizeof(GLushort);
case GL_UNSIGNED_INT_8_8_8_8:
return sizeof(GLuint);
case GL_UNSIGNED_INT_8_8_8_8_REV:
return sizeof(GLuint);
case GL_UNSIGNED_INT_2_10_10_10_REV:
return sizeof(GLuint);
+ case GL_UNSIGNED_SHORT_8_8_MESA:
+ case GL_UNSIGNED_SHORT_8_8_REV_MESA:
+ return sizeof(GLushort);
default:
return -1;
}
}
-
-/*
- * Return the number of components in a GL enum pixel type.
- * Return -1 if bad format.
+/**
+ * Get the number of components in a pixel format.
+ *
+ * \param format pixel format.
+ *
+ * \return the number of components in the given format, or -1 if a bad format.
*/
-GLint gl_components_in_format( GLenum format )
+GLint _mesa_components_in_format( GLenum format )
{
switch (format) {
case GL_COLOR_INDEX:
return 4;
case GL_ABGR_EXT:
return 4;
+ case GL_YCBCR_MESA:
+ return 2;
default:
return -1;
}
}
-/*
- * Return bytes per pixel for given format and type
- * Return -1 if bad format or type.
+/**
+ * Get the bytes per pixel of pixel format type pair.
+ *
+ * \param format pixel format.
+ * \param type pixel type.
+ *
+ * \return bytes per pixel, or -1 if a bad format or type was given.
*/
-GLint gl_bytes_per_pixel( GLenum format, GLenum type )
+GLint _mesa_bytes_per_pixel( GLenum format, GLenum type )
{
- GLint comps = gl_components_in_format( format );
+ GLint comps = _mesa_components_in_format( format );
if (comps < 0)
return -1;
return comps * sizeof(GLint);
case GL_FLOAT:
return comps * sizeof(GLfloat);
+ case GL_HALF_FLOAT_NV:
+ return comps * sizeof(GLhalfNV);
case GL_UNSIGNED_BYTE_3_3_2:
case GL_UNSIGNED_BYTE_2_3_3_REV:
if (format == GL_RGB || format == GL_BGR)
case GL_UNSIGNED_SHORT_5_6_5:
case GL_UNSIGNED_SHORT_5_6_5_REV:
if (format == GL_RGB || format == GL_BGR)
- return sizeof(GLshort);
+ return sizeof(GLushort);
else
return -1; /* error */
case GL_UNSIGNED_SHORT_4_4_4_4:
return sizeof(GLuint);
else
return -1;
+ case GL_UNSIGNED_SHORT_8_8_MESA:
+ case GL_UNSIGNED_SHORT_8_8_REV_MESA:
+ if (format == GL_YCBCR_MESA)
+ return sizeof(GLushort);
+ else
+ return -1;
default:
return -1;
}
}
-/*
- * Test if the given pixel format and type are legal.
- * Return GL_TRUE for legal, GL_FALSE for illegal.
+/**
+ * Test for a legal pixel format and type.
+ *
+ * \param format pixel format.
+ * \param type pixel type.
+ *
+ * \return GL_TRUE if the given pixel format and type are legal, or GL_FALSE
+ * otherwise.
*/
-GLboolean gl_is_legal_format_and_type( GLenum format, GLenum type )
+GLboolean
+_mesa_is_legal_format_and_type( GLenum format, GLenum type )
{
switch (format) {
case GL_COLOR_INDEX:
case GL_INT:
case GL_UNSIGNED_INT:
case GL_FLOAT:
+ case GL_HALF_FLOAT_NV:
return GL_TRUE;
default:
return GL_FALSE;
case GL_GREEN:
case GL_BLUE:
case GL_ALPHA:
+ case GL_INTENSITY:
case GL_LUMINANCE:
case GL_LUMINANCE_ALPHA:
case GL_DEPTH_COMPONENT:
- case GL_BGR:
switch (type) {
case GL_BYTE:
case GL_UNSIGNED_BYTE:
case GL_INT:
case GL_UNSIGNED_INT:
case GL_FLOAT:
+ case GL_HALF_FLOAT_NV:
return GL_TRUE;
default:
return GL_FALSE;
}
case GL_RGB:
+ case GL_BGR:
switch (type) {
case GL_BYTE:
case GL_UNSIGNED_BYTE:
case GL_INT:
case GL_UNSIGNED_INT:
case GL_FLOAT:
+ case GL_HALF_FLOAT_NV:
case GL_UNSIGNED_BYTE_3_3_2:
case GL_UNSIGNED_BYTE_2_3_3_REV:
case GL_UNSIGNED_SHORT_5_6_5:
case GL_INT:
case GL_UNSIGNED_INT:
case GL_FLOAT:
+ case GL_HALF_FLOAT_NV:
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:
default:
return GL_FALSE;
}
+ case GL_YCBCR_MESA:
+ if (type == GL_UNSIGNED_SHORT_8_8_MESA ||
+ type == GL_UNSIGNED_SHORT_8_8_REV_MESA)
+ return GL_TRUE;
+ else
+ return GL_FALSE;
default:
; /* fall-through */
}
}
-
-/*
- * Return the address of a pixel in an image (actually a volume).
- * Pixel unpacking/packing parameters are observed according to 'packing'.
- * Input: image - start of image data
- * width, height - size of image
- * format - image format
- * type - pixel component type
- * packing - the pixelstore attributes
- * img - which image in the volume (0 for 1D or 2D images)
- * row, column - location of pixel in the image
- * Return: address of pixel at (image,row,column) in image or NULL if error.
+/**
+ * Get the address of a pixel in an image (actually a volume).
+ *
+ * Pixel unpacking/packing parameters are observed according to \p packing.
+ *
+ * \param image start of image data.
+ * \param width image width.
+ * \param height image height.
+ * \param format pixel format.
+ * \param type pixel data type.
+ * \param packing the pixelstore attributes
+ * \param img which image in the volume (0 for 1D or 2D images)
+ * \param row of pixel in the image
+ * \param column of pixel in the image
+ *
+ * \return address of pixel on success, or NULL on error.
+ *
+ * According to the \p packing information calculates the number of pixel/bytes
+ * per row/image and refers it.
+ *
+ * \sa gl_pixelstore_attrib.
*/
-GLvoid *gl_pixel_addr_in_image( const struct gl_pixelstore_attrib *packing,
- const GLvoid *image, GLsizei width,
- GLsizei height, GLenum format, GLenum type,
- GLint img, GLint row, GLint column )
+GLvoid *
+_mesa_image_address( const struct gl_pixelstore_attrib *packing,
+ const GLvoid *image, GLsizei width,
+ GLsizei height, GLenum format, GLenum type,
+ GLint img, GLint row, GLint column )
{
GLint alignment; /* 1, 2 or 4 */
GLint pixels_per_row;
GLint bytes_per_image;
/* Compute bytes per component */
- bytes_per_comp = gl_sizeof_packed_type( type );
+ bytes_per_comp = _mesa_sizeof_packed_type( type );
if (bytes_per_comp<0) {
return NULL;
}
/* Compute number of components per pixel */
- comp_per_pixel = gl_components_in_format( format );
+ comp_per_pixel = _mesa_components_in_format( format );
if (comp_per_pixel<0 && type != GL_BITMAP) {
return NULL;
}
else {
/* Non-BITMAP data */
GLint bytes_per_pixel, bytes_per_row, remainder, bytes_per_image;
+ GLint topOfImage;
- bytes_per_pixel = gl_bytes_per_pixel( format, type );
+ bytes_per_pixel = _mesa_bytes_per_pixel( format, type );
/* The pixel type and format should have been error checked earlier */
assert(bytes_per_pixel > 0);
bytes_per_image = bytes_per_row * rows_per_image;
+ if (packing->Invert) {
+ /* set pixel_addr to the last row */
+ topOfImage = bytes_per_row * (height - 1);
+ bytes_per_row = -bytes_per_row;
+ }
+ else {
+ topOfImage = 0;
+ }
+
/* compute final pixel address */
pixel_addr = (GLubyte *) image
+ (skipimages + img) * bytes_per_image
+ + topOfImage
+ (skiprows + row) * bytes_per_row
+ (skippixels + column) * bytes_per_pixel;
}
}
-
-/*
- * Allocate a new gl_image. All fields are initialized to zero.
+/**
+ * Compute the stride between image rows.
+ *
+ * \param packing the pixelstore attributes
+ * \param width image width.
+ * \param format pixel format.
+ * \param type pixel data type.
+ *
+ * \return the stride in bytes for the given parameters.
+ *
+ * Computes the number of bytes per pixel and row and compensates for alignment.
+ *
+ * \sa gl_pixelstore_attrib.
*/
-static struct gl_image *alloc_image( void )
+GLint
+_mesa_image_row_stride( const struct gl_pixelstore_attrib *packing,
+ GLint width, GLenum format, GLenum type )
{
- return CALLOC_STRUCT(gl_image);
+ ASSERT(packing);
+ if (type == GL_BITMAP) {
+ /* BITMAP data */
+ GLint bytes;
+ if (packing->RowLength == 0) {
+ bytes = (width + 7) / 8;
+ }
+ else {
+ bytes = (packing->RowLength + 7) / 8;
+ }
+ if (packing->Invert) {
+ /* negate the bytes per row (negative row stride) */
+ bytes = -bytes;
+ }
+ return bytes;
+ }
+ else {
+ /* Non-BITMAP data */
+ const GLint bytesPerPixel = _mesa_bytes_per_pixel(format, type);
+ GLint bytesPerRow, remainder;
+ if (bytesPerPixel <= 0)
+ return -1; /* error */
+ if (packing->RowLength == 0) {
+ bytesPerRow = bytesPerPixel * width;
+ }
+ else {
+ bytesPerRow = bytesPerPixel * packing->RowLength;
+ }
+ remainder = bytesPerRow % packing->Alignment;
+ if (remainder > 0)
+ bytesPerRow += (packing->Alignment - remainder);
+ if (packing->Invert)
+ bytesPerRow = -bytesPerRow;
+ return bytesPerRow;
+ }
}
+#if _HAVE_FULL_GL
/*
- * Allocate a new gl_image with the error flag set.
+ * Compute the stride between images in a 3D texture (in bytes) for the given
+ * pixel packing parameters and image width, format and type.
*/
-static struct gl_image *alloc_error_image( GLint width, GLint height,
- GLint depth, GLenum format,
- GLenum type )
+GLint
+_mesa_image_image_stride( const struct gl_pixelstore_attrib *packing,
+ GLint width, GLint height,
+ GLenum format, GLenum type )
{
- struct gl_image *image = alloc_image();
- if (image) {
- image->Width = width;
- image->Height = height;
- image->Depth = depth;
- image->Format = format;
- image->Type = type;
- image->ErrorFlag = GL_TRUE;
+ ASSERT(packing);
+ ASSERT(type != GL_BITMAP);
+
+ {
+ const GLint bytesPerPixel = _mesa_bytes_per_pixel(format, type);
+ GLint bytesPerRow, bytesPerImage, remainder;
+
+ if (bytesPerPixel <= 0)
+ return -1; /* error */
+ if (packing->RowLength == 0) {
+ bytesPerRow = bytesPerPixel * width;
+ }
+ else {
+ bytesPerRow = bytesPerPixel * packing->RowLength;
+ }
+ remainder = bytesPerRow % packing->Alignment;
+ if (remainder > 0)
+ bytesPerRow += (packing->Alignment - remainder);
+
+ if (packing->ImageHeight == 0)
+ bytesPerImage = bytesPerRow * height;
+ else
+ bytesPerImage = bytesPerRow * packing->ImageHeight;
+
+ return bytesPerImage;
}
- return image;
}
-
/*
- * Free a gl_image.
+ * Unpack a 32x32 pixel polygon stipple from user memory using the
+ * current pixel unpack settings.
*/
-void gl_free_image( struct gl_image *image )
+void
+_mesa_unpack_polygon_stipple( const GLubyte *pattern, GLuint dest[32],
+ const struct gl_pixelstore_attrib *unpacking )
{
- if (image->Data) {
- FREE(image->Data);
+ GLubyte *ptrn = (GLubyte *) _mesa_unpack_bitmap( 32, 32, pattern, unpacking );
+ if (ptrn) {
+ /* Convert pattern from GLubytes to GLuints and handle big/little
+ * endian differences
+ */
+ GLubyte *p = ptrn;
+ GLint i;
+ for (i = 0; i < 32; i++) {
+ dest[i] = (p[0] << 24)
+ | (p[1] << 16)
+ | (p[2] << 8)
+ | (p[3] );
+ p += 4;
+ }
+ FREE(ptrn);
}
- FREE(image);
}
-
/*
- * Do error checking on an image. If there's an error, register it and
- * return GL_TRUE, else return GL_FALSE.
+ * Pack polygon stipple into user memory given current pixel packing
+ * settings.
*/
-GLboolean gl_image_error_test( GLcontext *ctx, const struct gl_image *image,
- const char *msg )
+void
+_mesa_pack_polygon_stipple( const GLuint pattern[32], GLubyte *dest,
+ const struct gl_pixelstore_attrib *packing )
{
- if (!image) {
- gl_error( ctx, GL_OUT_OF_MEMORY, msg );
- return GL_TRUE;
- }
- if (image->Width <= 0 || image->Height <= 0 || image->Depth <= 0) {
- gl_error( ctx, GL_INVALID_VALUE, msg );
- return GL_TRUE;
- }
- else if (!gl_is_legal_format_and_type(image->Format, image->Type)) {
- return GL_TRUE;
- }
- else {
- return GL_FALSE;
+ /* Convert pattern from GLuints to GLubytes to handle big/little
+ * endian differences.
+ */
+ GLubyte ptrn[32*4];
+ GLint i;
+ for (i = 0; i < 32; i++) {
+ ptrn[i * 4 + 0] = (GLubyte) ((pattern[i] >> 24) & 0xff);
+ ptrn[i * 4 + 1] = (GLubyte) ((pattern[i] >> 16) & 0xff);
+ ptrn[i * 4 + 2] = (GLubyte) ((pattern[i] >> 8 ) & 0xff);
+ ptrn[i * 4 + 3] = (GLubyte) ((pattern[i] ) & 0xff);
}
-}
+ _mesa_pack_bitmap(32, 32, ptrn, dest, packing);
+}
/*
- * Unpack a depth-buffer image storing values as GLshort, GLuint, or GLfloats.
- * Input: type - datatype of src depth image
- * Return pointer to a new gl_image structure.
- *
- * Notes: if the source image type is GLushort then the gl_image will
- * also store GLushorts. If the src image type is GLuint then the gl_image
- * will also store GLuints. For all other src image types the gl_image
- * will store GLfloats. The integer cases can later be optimized.
+ * Unpack bitmap data. Resulting data will be in most-significant-bit-first
+ * order with row alignment = 1 byte.
*/
-static struct gl_image *
-unpack_depth_image( GLcontext *ctx, GLenum type, GLint width, GLint height,
- const GLvoid *pixels,
- const struct gl_pixelstore_attrib *packing)
-
+GLvoid *
+_mesa_unpack_bitmap( GLint width, GLint height, const GLubyte *pixels,
+ const struct gl_pixelstore_attrib *packing )
{
- struct gl_image *image;
- GLfloat *fDst;
- GLushort *sDst;
- GLuint *iDst;
- GLint i, j;
- GLboolean errorType;
-
- errorType = type != GL_BYTE &&
- type != GL_UNSIGNED_BYTE &&
- type != GL_SHORT &&
- type != GL_UNSIGNED_SHORT &&
- type != GL_INT &&
- type != GL_UNSIGNED_INT &&
- type != GL_FLOAT;
-
- image = alloc_image();
- if (image) {
- image->Width = width;
- image->Height = height;
- image->Depth = 1;
- image->Components = 1;
- image->Format = GL_DEPTH_COMPONENT;
- if (errorType) {
- image->Type = type;
- image->Data = NULL;
- }
- if (type==GL_UNSIGNED_SHORT) {
- image->Type = GL_UNSIGNED_SHORT;
- image->Data = MALLOC( width * height * sizeof(GLushort));
- }
- else if (type==GL_UNSIGNED_INT) {
- image->Type = GL_UNSIGNED_INT;
- image->Data = MALLOC( width * height * sizeof(GLuint));
- }
- else {
- image->Type = GL_FLOAT;
- image->Data = MALLOC( width * height * sizeof(GLfloat));
- }
- image->RefCount = 0;
- if (!image->Data)
- return image;
- }
- else {
+ GLint bytes, row, width_in_bytes;
+ GLubyte *buffer, *dst;
+
+ if (!pixels)
return NULL;
- }
- if (errorType)
- return image;
+ /* Alloc dest storage */
+ bytes = ((width + 7) / 8 * height);
+ buffer = (GLubyte *) MALLOC( bytes );
+ if (!buffer)
+ return NULL;
- fDst = (GLfloat *) image->Data;
- sDst = (GLushort *) image->Data;
- iDst = (GLuint *) image->Data;
- for (i=0;i<height;i++) {
- GLvoid *src = gl_pixel_addr_in_image( packing, pixels,
- width, height,
- GL_DEPTH_COMPONENT, type,
- 0, i, 0 );
+ width_in_bytes = CEILING( width, 8 );
+ dst = buffer;
+ for (row = 0; row < height; row++) {
+ const GLubyte *src = (const GLubyte *)
+ _mesa_image_address(packing, pixels, width, height,
+ GL_COLOR_INDEX, GL_BITMAP, 0, row, 0);
if (!src) {
- return image;
+ FREE(buffer);
+ return NULL;
}
- switch (type) {
- case GL_BYTE:
- assert(image->Type == GL_FLOAT);
- for (j=0; j<width; j++) {
- *fDst++ = BYTE_TO_FLOAT(((GLbyte*)src)[j]);
- }
- break;
- case GL_UNSIGNED_BYTE:
- assert(image->Type == GL_FLOAT);
- for (j=0; j<width; j++) {
- *fDst++ = UBYTE_TO_FLOAT(((GLubyte*)src)[j]);
- }
- break;
- case GL_UNSIGNED_SHORT:
- assert(image->Type == GL_UNSIGNED_SHORT);
- MEMCPY( sDst, src, width * sizeof(GLushort) );
- if (packing->SwapBytes) {
- gl_swap2( sDst, width );
- }
- sDst += width;
- break;
- case GL_SHORT:
- assert(image->Type == GL_FLOAT);
- if (packing->SwapBytes) {
- for (j=0;j<width;j++) {
- GLshort value = ((GLshort*)src)[j];
- value = ((value >> 8) & 0xff) | ((value&0xff) << 8);
- *fDst++ = SHORT_TO_FLOAT(value);
+ if (packing->SkipPixels == 0) {
+ MEMCPY( dst, src, width_in_bytes );
+ if (packing->LsbFirst) {
+ flip_bytes( dst, width_in_bytes );
+ }
+ }
+ else {
+ /* handling SkipPixels is a bit tricky (no pun intended!) */
+ GLint i;
+ if (packing->LsbFirst) {
+ GLubyte srcMask = 1 << (packing->SkipPixels & 0x7);
+ GLubyte dstMask = 128;
+ const GLubyte *s = src;
+ GLubyte *d = dst;
+ *d = 0;
+ for (i = 0; i < width; i++) {
+ if (*s & srcMask) {
+ *d |= dstMask;
}
- }
- else {
- for (j=0;j<width;j++) {
- *fDst++ = SHORT_TO_FLOAT(((GLshort*)src)[j]);
+ if (srcMask == 128) {
+ srcMask = 1;
+ s++;
}
- }
- break;
- case GL_INT:
- assert(image->Type == GL_FLOAT);
- if (packing->SwapBytes) {
- for (j=0;j<width;j++) {
- GLint value = ((GLint*)src)[j];
- value = ((value >> 24) & 0x000000ff) |
- ((value >> 8) & 0x0000ff00) |
- ((value << 8) & 0x00ff0000) |
- ((value << 24) & 0xff000000);
- *fDst++ = INT_TO_FLOAT(value);
+ else {
+ srcMask = srcMask << 1;
}
- }
- else {
- for (j=0;j<width;j++) {
- *fDst++ = INT_TO_FLOAT(((GLint*)src)[j]);
+ if (dstMask == 1) {
+ dstMask = 128;
+ d++;
+ *d = 0;
+ }
+ else {
+ dstMask = dstMask >> 1;
}
}
- iDst += width;
- break;
- case GL_UNSIGNED_INT:
- assert(image->Type == GL_UNSIGNED_INT);
- MEMCPY( iDst, src, width * sizeof(GLuint) );
- if (packing->SwapBytes) {
- gl_swap4( iDst, width );
- }
- iDst += width;
- break;
- case GL_FLOAT:
- assert(image->Type == GL_FLOAT);
- MEMCPY( fDst, src, width * sizeof(GLfloat) );
- if (packing->SwapBytes) {
- gl_swap4( (GLuint*) fDst, width );
+ }
+ else {
+ GLubyte srcMask = 128 >> (packing->SkipPixels & 0x7);
+ GLubyte dstMask = 128;
+ const GLubyte *s = src;
+ GLubyte *d = dst;
+ *d = 0;
+ for (i = 0; i < width; i++) {
+ if (*s & srcMask) {
+ *d |= dstMask;
+ }
+ if (srcMask == 1) {
+ srcMask = 128;
+ s++;
+ }
+ else {
+ srcMask = srcMask >> 1;
+ }
+ if (dstMask == 1) {
+ dstMask = 128;
+ d++;
+ *d = 0;
+ }
+ else {
+ dstMask = dstMask >> 1;
+ }
}
- fDst += width;
- break;
- default:
- gl_problem(ctx, "unpack_depth_image type" );
- return image;
+ }
}
+ dst += width_in_bytes;
}
- return image;
+ return buffer;
}
-
/*
- * Unpack a stencil image. Store as GLubytes in a gl_image structure.
- * Return: pointer to new gl_image structure.
+ * Pack bitmap data.
*/
-static struct gl_image *
-unpack_stencil_image( GLcontext *ctx, GLenum type, GLint width, GLint height,
- const GLvoid *pixels,
- const struct gl_pixelstore_attrib *packing )
+void
+_mesa_pack_bitmap( GLint width, GLint height, const GLubyte *source,
+ GLubyte *dest, const struct gl_pixelstore_attrib *packing )
{
- struct gl_image *image;
- GLubyte *dst;
- GLint i, j;
- GLboolean errorType;
-
- assert(sizeof(GLstencil) == sizeof(GLubyte));
-
- errorType = type != GL_BYTE &&
- type != GL_UNSIGNED_BYTE &&
- type != GL_SHORT &&
- type != GL_UNSIGNED_SHORT &&
- type != GL_INT &&
- type != GL_UNSIGNED_INT &&
- type != GL_FLOAT &&
- type != GL_BITMAP;
-
- image = alloc_image();
- if (image) {
- image->Width = width;
- image->Height = height;
- image->Depth = 1;
- image->Components = 1;
- image->Format = GL_STENCIL_INDEX;
- if (errorType) {
- image->Type = type;
- image->Data = NULL;
- }
- else {
- image->Type = GL_UNSIGNED_BYTE;
- image->Data = MALLOC( width * height * sizeof(GLubyte));
- }
- image->RefCount = 0;
- if (!image->Data)
- return image;
- }
- else {
- return NULL;
- }
+ GLint row, width_in_bytes;
+ const GLubyte *src;
- if (errorType)
- return image; /* error will be generated later */
+ if (!source)
+ return;
- dst = (GLubyte *) image->Data;
+ width_in_bytes = CEILING( width, 8 );
+ src = source;
+ for (row = 0; row < height; row++) {
+ GLubyte *dst = (GLubyte *) _mesa_image_address( packing, dest,
+ width, height, GL_COLOR_INDEX, GL_BITMAP, 0, row, 0 );
+ if (!dst)
+ return;
- for (i=0;i<height;i++) {
- GLvoid *src = gl_pixel_addr_in_image( packing, pixels,
- width, height,
- GL_STENCIL_INDEX, type,
- 0, i, 0 );
- if (!src) {
- return image;
+ if (packing->SkipPixels == 0) {
+ MEMCPY( dst, src, width_in_bytes );
+ if (packing->LsbFirst) {
+ flip_bytes( dst, width_in_bytes );
+ }
}
-
- switch (type) {
- case GL_UNSIGNED_BYTE:
- case GL_BYTE:
- MEMCPY( dst, src, width * sizeof(GLubyte) );
- dst += width * sizeof(GLubyte);
- break;
- case GL_UNSIGNED_SHORT:
- case GL_SHORT:
- if (packing->SwapBytes) {
- /* grab upper byte */
- for (j=0; j < width; j++) {
- *dst++ = (((GLushort*)src)[j] & 0xff00) >> 8;
+ else {
+ /* handling SkipPixels is a bit tricky (no pun intended!) */
+ GLint i;
+ if (packing->LsbFirst) {
+ GLubyte srcMask = 1 << (packing->SkipPixels & 0x7);
+ GLubyte dstMask = 128;
+ const GLubyte *s = src;
+ GLubyte *d = dst;
+ *d = 0;
+ for (i = 0; i < width; i++) {
+ if (*s & srcMask) {
+ *d |= dstMask;
}
- }
- else {
- for (j=0; j < width; j++) {
- *dst++ = (((GLushort*)src)[j]) & 0xff;
+ if (srcMask == 128) {
+ srcMask = 1;
+ s++;
}
- }
- break;
- case GL_INT:
- if (packing->SwapBytes) {
- /* grab upper byte */
- for (j=0; j < width; j++) {
- *dst++ = (((GLuint*)src)[j] & 0xff000000) >> 8;
+ else {
+ srcMask = srcMask << 1;
}
- }
- else {
- for (j=0; j < width; j++) {
- *dst++ = (((GLuint*)src)[j]) & 0xff;
+ if (dstMask == 1) {
+ dstMask = 128;
+ d++;
+ *d = 0;
}
- }
- break;
- case GL_UNSIGNED_INT:
- if (packing->SwapBytes) {
- /* grab upper byte */
- for (j=0; j < width; j++) {
- *dst++ = (((GLuint*)src)[j] & 0xff000000) >> 8;
+ else {
+ dstMask = dstMask >> 1;
}
}
- else {
- for (j=0; j < width; j++) {
- *dst++ = (((GLuint*)src)[j]) & 0xff;
+ }
+ else {
+ GLubyte srcMask = 128 >> (packing->SkipPixels & 0x7);
+ GLubyte dstMask = 128;
+ const GLubyte *s = src;
+ GLubyte *d = dst;
+ *d = 0;
+ for (i = 0; i < width; i++) {
+ if (*s & srcMask) {
+ *d |= dstMask;
}
- }
- break;
- case GL_FLOAT:
- if (packing->SwapBytes) {
- for (j=0; j < width; j++) {
- GLfloat fvalue;
- GLint value = ((GLuint*)src)[j];
- value = ((value & 0xff000000) >> 24)
- | ((value & 0x00ff0000) >> 8)
- | ((value & 0x0000ff00) << 8)
- | ((value & 0x000000ff) << 24);
- fvalue = *((GLfloat*) &value);
- *dst++ = ((GLint) fvalue) & 0xff;
+ if (srcMask == 1) {
+ srcMask = 128;
+ s++;
}
- }
- else {
- for (j=0; j < width; j++) {
- GLfloat fvalue = ((GLfloat *)src)[j];
- *dst++ = ((GLint) fvalue) & 0xff;
+ else {
+ srcMask = srcMask >> 1;
+ }
+ if (dstMask == 1) {
+ dstMask = 128;
+ d++;
+ *d = 0;
+ }
+ else {
+ dstMask = dstMask >> 1;
}
}
- break;
- default:
- gl_problem(ctx, "unpack_stencil_image type" );
- return image;
+ }
}
+ src += width_in_bytes;
}
-
- return image;
}
-
/*
- * Unpack a bitmap, return a new gl_image struct.
+ * Used to pack an array [][4] of RGBA GLchan colors as specified
+ * by the dstFormat, dstType and dstPacking. Used by glReadPixels,
+ * glGetConvolutionFilter(), etc.
*/
-static struct gl_image *
-unpack_bitmap( GLenum format, GLint width, GLint height,
- const GLvoid *pixels,
- const struct gl_pixelstore_attrib *packing )
+void
+_mesa_pack_float_rgba_span( GLcontext *ctx,
+ GLuint n, CONST GLfloat rgbaIn[][4],
+ GLenum dstFormat, GLenum dstType,
+ GLvoid *dstAddr,
+ const struct gl_pixelstore_attrib *dstPacking,
+ GLuint transferOps )
{
- struct gl_image *image;
- GLint bytes, i, width_in_bytes;
- GLubyte *buffer, *dst;
+ const GLint comps = _mesa_components_in_format(dstFormat);
+ GLfloat luminance[MAX_WIDTH];
+ GLfloat (*rgba)[4];
+ GLuint i;
- assert(format == GL_COLOR_INDEX || format == GL_STENCIL_INDEX);
+ if (transferOps) {
+ /* make copy of incoming data */
+ DEFMARRAY(GLfloat, rgbaCopy, MAX_WIDTH, 4); /* mac 32k limitation */
+ CHECKARRAY(rgbaCopy, return); /* mac 32k limitation */
- /* Alloc dest storage */
- bytes = ((width+7)/8 * height);
- if (bytes>0 && pixels!=NULL) {
- buffer = (GLubyte *) MALLOC( bytes );
- if (!buffer) {
- return NULL;
+ for (i = 0; i < n; i++) {
+ rgbaCopy[i][0] = rgbaIn[i][0];
+ rgbaCopy[i][1] = rgbaIn[i][1];
+ rgbaCopy[i][2] = rgbaIn[i][2];
+ rgbaCopy[i][3] = rgbaIn[i][3];
}
- /* Copy/unpack pixel data to buffer */
- width_in_bytes = CEILING( width, 8 );
- dst = buffer;
- for (i=0; i<height; i++) {
- GLvoid *src = gl_pixel_addr_in_image( packing, pixels,
- width, height,
- GL_COLOR_INDEX, GL_BITMAP,
- 0, i, 0 );
- if (!src) {
- FREE(buffer);
- return NULL;
- }
- MEMCPY( dst, src, width_in_bytes );
- dst += width_in_bytes;
+
+ rgba = (GLfloat (*)[4]) rgbaCopy;
+
+ /* scale & bias */
+ if (transferOps & IMAGE_SCALE_BIAS_BIT) {
+ _mesa_scale_and_bias_rgba(ctx, n, rgba,
+ ctx->Pixel.RedScale, ctx->Pixel.GreenScale,
+ ctx->Pixel.BlueScale, ctx->Pixel.AlphaScale,
+ ctx->Pixel.RedBias, ctx->Pixel.GreenBias,
+ ctx->Pixel.BlueBias, ctx->Pixel.AlphaBias);
}
- /* Bit flipping */
- if (packing->LsbFirst) {
- gl_flip_bytes( buffer, bytes );
+ /* color map lookup */
+ if (transferOps & IMAGE_MAP_COLOR_BIT) {
+ _mesa_map_rgba( ctx, n, rgba );
}
+ /* GL_COLOR_TABLE lookup */
+ if (transferOps & IMAGE_COLOR_TABLE_BIT) {
+ _mesa_lookup_rgba(&ctx->ColorTable, n, rgba);
+ }
+ /* convolution */
+ if (transferOps & IMAGE_CONVOLUTION_BIT) {
+ /* this has to be done in the calling code */
+ }
+ /* GL_POST_CONVOLUTION_RED/GREEN/BLUE/ALPHA_SCALE/BIAS */
+ if (transferOps & IMAGE_POST_CONVOLUTION_SCALE_BIAS) {
+ _mesa_scale_and_bias_rgba(ctx, n, rgba,
+ ctx->Pixel.PostConvolutionScale[RCOMP],
+ ctx->Pixel.PostConvolutionScale[GCOMP],
+ ctx->Pixel.PostConvolutionScale[BCOMP],
+ ctx->Pixel.PostConvolutionScale[ACOMP],
+ ctx->Pixel.PostConvolutionBias[RCOMP],
+ ctx->Pixel.PostConvolutionBias[GCOMP],
+ ctx->Pixel.PostConvolutionBias[BCOMP],
+ ctx->Pixel.PostConvolutionBias[ACOMP]);
+ }
+ /* GL_POST_CONVOLUTION_COLOR_TABLE lookup */
+ if (transferOps & IMAGE_POST_CONVOLUTION_COLOR_TABLE_BIT) {
+ _mesa_lookup_rgba(&ctx->PostConvolutionColorTable, n, rgba);
+ }
+ /* color matrix transform */
+ if (transferOps & IMAGE_COLOR_MATRIX_BIT) {
+ _mesa_transform_rgba(ctx, n, rgba);
+ }
+ /* GL_POST_COLOR_MATRIX_COLOR_TABLE lookup */
+ if (transferOps & IMAGE_POST_COLOR_MATRIX_COLOR_TABLE_BIT) {
+ _mesa_lookup_rgba(&ctx->PostColorMatrixColorTable, n, rgba);
+ }
+ /* update histogram count */
+ if (transferOps & IMAGE_HISTOGRAM_BIT) {
+ _mesa_update_histogram(ctx, n, (CONST GLfloat (*)[4]) rgba);
+ }
+ /* min/max here */
+ if (transferOps & IMAGE_MIN_MAX_BIT) {
+ _mesa_update_minmax(ctx, n, (CONST GLfloat (*)[4]) rgba);
+ if (ctx->MinMax.Sink) {
+ UNDEFARRAY(rgbaCopy); /* mac 32k limitation */
+ return;
+ }
+ }
+ UNDEFARRAY(rgbaCopy); /* mac 32k limitation */
}
else {
- /* a 'null' bitmap */
- buffer = NULL;
- }
-
- image = alloc_image();
- if (image) {
- image->Width = width;
- image->Height = height;
- image->Depth = 1;
- image->Components = 0;
- image->Format = format;
- image->Type = GL_BITMAP;
- image->Data = buffer;
- image->RefCount = 0;
- }
- else {
- FREE( buffer );
- return NULL;
+ /* use incoming data, not a copy */
+ rgba = (GLfloat (*)[4]) rgbaIn;
}
- return image;
-}
-
+ /* XXX clamp rgba to [0,1]? */
-/*
- * Unpack a 32x32 pixel polygon stipple from user memory using the
- * current pixel unpack settings.
- */
-void gl_unpack_polygon_stipple( const GLcontext *ctx,
- const GLubyte *pattern, GLuint dest[32] )
-{
- GLint i;
- for (i = 0; i < 32; i++) {
- GLubyte *src = (GLubyte *) gl_pixel_addr_in_image( &ctx->Unpack, pattern,
- 32, 32, GL_COLOR_INDEX, GL_BITMAP, 0, i, 0 );
- dest[i] = (src[0] << 24)
- | (src[1] << 16)
- | (src[2] << 8)
- | (src[3] );
- }
-
- /* Bit flipping within each byte */
- if (ctx->Unpack.LsbFirst) {
- gl_flip_bytes( (GLubyte *) dest, 32 * 4 );
+ if (dstFormat == GL_LUMINANCE || dstFormat == GL_LUMINANCE_ALPHA) {
+ for (i = 0; i < n; i++) {
+ GLfloat sum = rgba[i][RCOMP] + rgba[i][GCOMP] + rgba[i][BCOMP];
+#if CHAN_TYPE == GL_FLOAT
+ luminance[i] = sum;
+#else
+ luminance[i] = CLAMP(sum, 0.0F, 1.0F);
+#endif
+ }
}
-}
-
-
-
-/*
- * Pack polygon stipple into user memory given current pixel packing
- * settings.
- */
-void gl_pack_polygon_stipple( const GLcontext *ctx,
- const GLuint pattern[32],
- GLubyte *dest )
-{
- GLint i;
- for (i = 0; i < 32; i++) {
- GLubyte *dst = (GLubyte *) gl_pixel_addr_in_image( &ctx->Pack, dest,
- 32, 32, GL_COLOR_INDEX, GL_BITMAP, 0, i, 0 );
- dst[0] = (pattern[i] >> 24) & 0xff;
- dst[1] = (pattern[i] >> 16) & 0xff;
- dst[2] = (pattern[i] >> 8) & 0xff;
- dst[3] = (pattern[i] ) & 0xff;
- /* Bit flipping within each byte */
- if (ctx->Pack.LsbFirst) {
- gl_flip_bytes( (GLubyte *) dst, 4 );
- }
- }
-}
-
-
-
-/*
- * Unpack an RGBA or CI image and store it as unsigned bytes
- */
-static struct gl_image *
-unpack_ubyte_image( GLint width, GLint height,
- GLint depth, GLenum format, const GLvoid *pixels,
- const struct gl_pixelstore_attrib *packing )
-{
- struct gl_image *image;
- GLint width_in_bytes;
- GLint components;
- GLubyte *buffer, *dst;
- GLint i, d;
-
- components = gl_components_in_format( format );
-
- width_in_bytes = width * components * sizeof(GLubyte);
- buffer = (GLubyte *) MALLOC( height * width_in_bytes * depth );
- if (!buffer) {
- return NULL;
- }
-
- /* Copy/unpack pixel data to buffer */
- dst = buffer;
- for (d=0; d<depth; d++ ) {
- for (i=0;i<height;i++) {
- GLubyte *src = (GLubyte *) gl_pixel_addr_in_image( packing,
- pixels, width, height, format, GL_UNSIGNED_BYTE,
- d, i, 0 );
- if (!src) {
- FREE(buffer);
- return NULL;
+ /*
+ * Pack/store the pixels. Ugh! Lots of cases!!!
+ */
+ switch (dstType) {
+ case GL_UNSIGNED_BYTE:
+ {
+ GLubyte *dst = (GLubyte *) dstAddr;
+ switch (dstFormat) {
+ case GL_RED:
+ for (i=0;i<n;i++)
+ dst[i] = FLOAT_TO_UBYTE(rgba[i][RCOMP]);
+ break;
+ case GL_GREEN:
+ for (i=0;i<n;i++)
+ dst[i] = FLOAT_TO_UBYTE(rgba[i][GCOMP]);
+ break;
+ case GL_BLUE:
+ for (i=0;i<n;i++)
+ dst[i] = FLOAT_TO_UBYTE(rgba[i][BCOMP]);
+ break;
+ case GL_ALPHA:
+ for (i=0;i<n;i++)
+ dst[i] = FLOAT_TO_UBYTE(rgba[i][ACOMP]);
+ break;
+ case GL_LUMINANCE:
+ for (i=0;i<n;i++)
+ dst[i] = FLOAT_TO_UBYTE(luminance[i]);
+ break;
+ case GL_LUMINANCE_ALPHA:
+ for (i=0;i<n;i++) {
+ dst[i*2+0] = FLOAT_TO_UBYTE(luminance[i]);
+ dst[i*2+1] = FLOAT_TO_UBYTE(rgba[i][ACOMP]);
+ }
+ break;
+ case GL_RGB:
+ for (i=0;i<n;i++) {
+ dst[i*3+0] = FLOAT_TO_UBYTE(rgba[i][RCOMP]);
+ dst[i*3+1] = FLOAT_TO_UBYTE(rgba[i][GCOMP]);
+ dst[i*3+2] = FLOAT_TO_UBYTE(rgba[i][BCOMP]);
+ }
+ break;
+ case GL_RGBA:
+ for (i=0;i<n;i++) {
+ dst[i*4+0] = FLOAT_TO_UBYTE(rgba[i][RCOMP]);
+ dst[i*4+1] = FLOAT_TO_UBYTE(rgba[i][GCOMP]);
+ dst[i*4+2] = FLOAT_TO_UBYTE(rgba[i][BCOMP]);
+ dst[i*4+3] = FLOAT_TO_UBYTE(rgba[i][ACOMP]);
+ }
+ break;
+ case GL_BGR:
+ for (i=0;i<n;i++) {
+ dst[i*3+0] = FLOAT_TO_UBYTE(rgba[i][BCOMP]);
+ dst[i*3+1] = FLOAT_TO_UBYTE(rgba[i][GCOMP]);
+ dst[i*3+2] = FLOAT_TO_UBYTE(rgba[i][RCOMP]);
+ }
+ break;
+ case GL_BGRA:
+ for (i=0;i<n;i++) {
+ dst[i*4+0] = FLOAT_TO_UBYTE(rgba[i][BCOMP]);
+ dst[i*4+1] = FLOAT_TO_UBYTE(rgba[i][GCOMP]);
+ dst[i*4+2] = FLOAT_TO_UBYTE(rgba[i][RCOMP]);
+ dst[i*4+3] = FLOAT_TO_UBYTE(rgba[i][ACOMP]);
+ }
+ break;
+ case GL_ABGR_EXT:
+ for (i=0;i<n;i++) {
+ dst[i*4+0] = FLOAT_TO_UBYTE(rgba[i][ACOMP]);
+ dst[i*4+1] = FLOAT_TO_UBYTE(rgba[i][BCOMP]);
+ dst[i*4+2] = FLOAT_TO_UBYTE(rgba[i][GCOMP]);
+ dst[i*4+3] = FLOAT_TO_UBYTE(rgba[i][RCOMP]);
+ }
+ break;
+ default:
+ _mesa_problem(ctx, "bad format in _mesa_pack_rgba_span\n");
+ }
}
- MEMCPY( dst, src, width_in_bytes );
- dst += width_in_bytes;
- }
- }
-
- if (format == GL_BGR) {
- /* swap order of every ubyte triplet from BGR to RGB */
- for (i=0; i<width*height; i++) {
- GLubyte b = buffer[i*3+0];
- GLubyte r = buffer[i*3+2];
- buffer[i*3+0] = r;
- buffer[i*3+2] = b;
- }
- }
- else if (format == GL_BGRA) {
- /* swap order of every ubyte quadruplet from BGRA to RGBA */
- for (i=0; i<width*height; i++) {
- GLubyte b = buffer[i*4+0];
- GLubyte r = buffer[i*4+2];
- buffer[i*4+0] = r;
- buffer[i*4+2] = b;
- }
- }
- else if (format == GL_ABGR_EXT) {
- /* swap order of every ubyte quadruplet from ABGR to RGBA */
- for (i=0; i<width*height; i++) {
- GLubyte a = buffer[i*4+0];
- GLubyte b = buffer[i*4+1];
- GLubyte g = buffer[i*4+2];
- GLubyte r = buffer[i*4+3];
- buffer[i*4+0] = r;
- buffer[i*4+1] = g;
- buffer[i*4+2] = b;
- buffer[i*4+3] = a;
- }
- }
-
-
- image = alloc_image();
- if (image) {
- image->Width = width;
- image->Height = height;
- image->Depth = depth;
- image->Components = components;
- if (format == GL_BGR)
- image->Format = GL_RGB;
- else if (format == GL_BGRA)
- image->Format = GL_RGBA;
- else if (format == GL_ABGR_EXT)
- image->Format = GL_RGBA;
- else
- image->Format = format;
- image->Type = GL_UNSIGNED_BYTE;
- image->Data = buffer;
- image->RefCount = 0;
- }
- else {
- FREE( buffer );
- }
-
- return image;
-}
-
-
-
-/*
- * Unpack a color image storing image as GLfloats
- */
-static struct gl_image *
-unpack_float_image( GLcontext *ctx, GLint width, GLint height, GLint depth,
- GLenum format, GLenum type, const GLvoid *pixels,
- const struct gl_pixelstore_attrib *packing )
-{
- struct gl_image *image;
- GLfloat *dst;
- GLint elems_per_row;
- GLint components;
- GLint i, j, d;
- GLboolean normalize;
-
- assert(type != GL_BITMAP);
-
- components = gl_components_in_format( format );
- assert(components > 0); /* should have been caught earlier */
-
- if (!gl_is_legal_format_and_type( format, type )) {
- /* bad pixel type for format, make dummy image */
- image = alloc_image();
- if (image) {
- image->Width = width;
- image->Height = height;
- image->Depth = depth;
- image->Components = components;
- image->Format = format;
- image->Type = type;
- image->Data = NULL;
- image->RefCount = 0;
- }
- return image;
- }
-
- elems_per_row = width * components;
-
- image = alloc_image();
- if (image) {
- image->Width = width;
- image->Height = height;
- image->Depth = depth;
- image->Components = components;
- if (format == GL_BGR)
- image->Format = GL_RGB;
- else if (format == GL_BGRA)
- image->Format = GL_RGBA;
- else if (format == GL_ABGR_EXT)
- image->Format = GL_RGBA;
- else
- image->Format = format;
- image->Type = GL_FLOAT;
- image->Data = MALLOC( elems_per_row * height * depth * sizeof(GLfloat));
- image->RefCount = 0;
- if (!image->Data)
- return image;
- }
- else {
- return NULL;
- }
-
- normalize = (format != GL_COLOR_INDEX) && (format != GL_STENCIL_INDEX);
-
- dst = (GLfloat *) image->Data;
-
- for (d=0; d<depth; d++) {
- for (i=0;i<height;i++) {
- GLvoid *src = gl_pixel_addr_in_image( packing, pixels,
- width, height,
- format, type,
- d, i, 0 );
- if (!src) {
- return image;
+ break;
+ case GL_BYTE:
+ {
+ GLbyte *dst = (GLbyte *) dstAddr;
+ switch (dstFormat) {
+ case GL_RED:
+ for (i=0;i<n;i++)
+ dst[i] = FLOAT_TO_BYTE(rgba[i][RCOMP]);
+ break;
+ case GL_GREEN:
+ for (i=0;i<n;i++)
+ dst[i] = FLOAT_TO_BYTE(rgba[i][GCOMP]);
+ break;
+ case GL_BLUE:
+ for (i=0;i<n;i++)
+ dst[i] = FLOAT_TO_BYTE(rgba[i][BCOMP]);
+ break;
+ case GL_ALPHA:
+ for (i=0;i<n;i++)
+ dst[i] = FLOAT_TO_BYTE(rgba[i][ACOMP]);
+ break;
+ case GL_LUMINANCE:
+ for (i=0;i<n;i++)
+ dst[i] = FLOAT_TO_BYTE(luminance[i]);
+ break;
+ case GL_LUMINANCE_ALPHA:
+ for (i=0;i<n;i++) {
+ dst[i*2+0] = FLOAT_TO_BYTE(luminance[i]);
+ dst[i*2+1] = FLOAT_TO_BYTE(rgba[i][ACOMP]);
+ }
+ break;
+ case GL_RGB:
+ for (i=0;i<n;i++) {
+ dst[i*3+0] = FLOAT_TO_BYTE(rgba[i][RCOMP]);
+ dst[i*3+1] = FLOAT_TO_BYTE(rgba[i][GCOMP]);
+ dst[i*3+2] = FLOAT_TO_BYTE(rgba[i][BCOMP]);
+ }
+ break;
+ case GL_RGBA:
+ for (i=0;i<n;i++) {
+ dst[i*4+0] = FLOAT_TO_BYTE(rgba[i][RCOMP]);
+ dst[i*4+1] = FLOAT_TO_BYTE(rgba[i][GCOMP]);
+ dst[i*4+2] = FLOAT_TO_BYTE(rgba[i][BCOMP]);
+ dst[i*4+3] = FLOAT_TO_BYTE(rgba[i][ACOMP]);
+ }
+ break;
+ case GL_BGR:
+ for (i=0;i<n;i++) {
+ dst[i*3+0] = FLOAT_TO_BYTE(rgba[i][BCOMP]);
+ dst[i*3+1] = FLOAT_TO_BYTE(rgba[i][GCOMP]);
+ dst[i*3+2] = FLOAT_TO_BYTE(rgba[i][RCOMP]);
+ }
+ break;
+ case GL_BGRA:
+ for (i=0;i<n;i++) {
+ dst[i*4+0] = FLOAT_TO_BYTE(rgba[i][BCOMP]);
+ dst[i*4+1] = FLOAT_TO_BYTE(rgba[i][GCOMP]);
+ dst[i*4+2] = FLOAT_TO_BYTE(rgba[i][RCOMP]);
+ dst[i*4+3] = FLOAT_TO_BYTE(rgba[i][ACOMP]);
+ }
+ case GL_ABGR_EXT:
+ for (i=0;i<n;i++) {
+ dst[i*4+0] = FLOAT_TO_BYTE(rgba[i][ACOMP]);
+ dst[i*4+1] = FLOAT_TO_BYTE(rgba[i][BCOMP]);
+ dst[i*4+2] = FLOAT_TO_BYTE(rgba[i][GCOMP]);
+ dst[i*4+3] = FLOAT_TO_BYTE(rgba[i][RCOMP]);
+ }
+ break;
+ default:
+ _mesa_problem(ctx, "bad format in _mesa_pack_rgba_span\n");
+ }
}
-
- switch (type) {
- case GL_UNSIGNED_BYTE:
- {
- GLubyte *ubsrc = (GLubyte *) src;
- if (normalize) {
- for (j=0;j<elems_per_row;j++) {
- *dst++ = UBYTE_TO_FLOAT(ubsrc[j]);
- }
+ break;
+ case GL_UNSIGNED_SHORT:
+ {
+ GLushort *dst = (GLushort *) dstAddr;
+ switch (dstFormat) {
+ case GL_RED:
+ for (i=0;i<n;i++)
+ dst[i] = FLOAT_TO_USHORT(rgba[i][RCOMP]);
+ break;
+ case GL_GREEN:
+ for (i=0;i<n;i++)
+ dst[i] = FLOAT_TO_USHORT(rgba[i][GCOMP]);
+ break;
+ case GL_BLUE:
+ for (i=0;i<n;i++)
+ dst[i] = FLOAT_TO_USHORT(rgba[i][BCOMP]);
+ break;
+ case GL_ALPHA:
+ for (i=0;i<n;i++)
+ dst[i] = FLOAT_TO_USHORT(rgba[i][ACOMP]);
+ break;
+ case GL_LUMINANCE:
+ for (i=0;i<n;i++)
+ dst[i] = FLOAT_TO_USHORT(luminance[i]);
+ break;
+ case GL_LUMINANCE_ALPHA:
+ for (i=0;i<n;i++) {
+ dst[i*2+0] = FLOAT_TO_USHORT(luminance[i]);
+ dst[i*2+1] = FLOAT_TO_USHORT(rgba[i][ACOMP]);
}
- else {
- for (j=0;j<elems_per_row;j++) {
- *dst++ = (GLfloat) ubsrc[j];
- }
+ break;
+ case GL_RGB:
+ for (i=0;i<n;i++) {
+ dst[i*3+0] = FLOAT_TO_USHORT(rgba[i][RCOMP]);
+ dst[i*3+1] = FLOAT_TO_USHORT(rgba[i][GCOMP]);
+ dst[i*3+2] = FLOAT_TO_USHORT(rgba[i][BCOMP]);
}
- }
- break;
- case GL_BYTE:
- if (normalize) {
- for (j=0;j<elems_per_row;j++) {
- *dst++ = BYTE_TO_FLOAT(((GLbyte*)src)[j]);
+ break;
+ case GL_RGBA:
+ for (i=0;i<n;i++) {
+ dst[i*4+0] = FLOAT_TO_USHORT(rgba[i][RCOMP]);
+ dst[i*4+1] = FLOAT_TO_USHORT(rgba[i][GCOMP]);
+ dst[i*4+2] = FLOAT_TO_USHORT(rgba[i][BCOMP]);
+ dst[i*4+3] = FLOAT_TO_USHORT(rgba[i][ACOMP]);
}
- }
- else {
- for (j=0;j<elems_per_row;j++) {
- *dst++ = (GLfloat) ((GLbyte*)src)[j];
+ break;
+ case GL_BGR:
+ for (i=0;i<n;i++) {
+ dst[i*3+0] = FLOAT_TO_USHORT(rgba[i][BCOMP]);
+ dst[i*3+1] = FLOAT_TO_USHORT(rgba[i][GCOMP]);
+ dst[i*3+2] = FLOAT_TO_USHORT(rgba[i][RCOMP]);
}
- }
- break;
- case GL_UNSIGNED_SHORT:
- if (packing->SwapBytes) {
- for (j=0;j<elems_per_row;j++) {
- GLushort value = ((GLushort*)src)[j];
- value = ((value >> 8) & 0xff) | ((value&0xff) << 8);
- if (normalize) {
- *dst++ = USHORT_TO_FLOAT(value);
- }
- else {
- *dst++ = (GLfloat) value;
- }
+ break;
+ case GL_BGRA:
+ for (i=0;i<n;i++) {
+ dst[i*4+0] = FLOAT_TO_USHORT(rgba[i][BCOMP]);
+ dst[i*4+1] = FLOAT_TO_USHORT(rgba[i][GCOMP]);
+ dst[i*4+2] = FLOAT_TO_USHORT(rgba[i][RCOMP]);
+ dst[i*4+3] = FLOAT_TO_USHORT(rgba[i][ACOMP]);
}
- }
- else {
- if (normalize) {
- for (j=0;j<elems_per_row;j++) {
- *dst++ = USHORT_TO_FLOAT(((GLushort*)src)[j]);
- }
+ break;
+ case GL_ABGR_EXT:
+ for (i=0;i<n;i++) {
+ dst[i*4+0] = FLOAT_TO_USHORT(rgba[i][ACOMP]);
+ dst[i*4+1] = FLOAT_TO_USHORT(rgba[i][BCOMP]);
+ dst[i*4+2] = FLOAT_TO_USHORT(rgba[i][GCOMP]);
+ dst[i*4+3] = FLOAT_TO_USHORT(rgba[i][RCOMP]);
}
- else {
- for (j=0;j<elems_per_row;j++) {
- *dst++ = (GLfloat) ((GLushort*)src)[j];
- }
+ break;
+ default:
+ _mesa_problem(ctx, "bad format in _mesa_pack_rgba_span\n");
+ }
+ if (dstPacking->SwapBytes) {
+ _mesa_swap2( (GLushort *) dst, n * comps);
+ }
+ }
+ break;
+ case GL_SHORT:
+ {
+ GLshort *dst = (GLshort *) dstAddr;
+ switch (dstFormat) {
+ case GL_RED:
+ for (i=0;i<n;i++)
+ dst[i] = FLOAT_TO_SHORT(rgba[i][RCOMP]);
+ break;
+ case GL_GREEN:
+ for (i=0;i<n;i++)
+ dst[i] = FLOAT_TO_SHORT(rgba[i][GCOMP]);
+ break;
+ case GL_BLUE:
+ for (i=0;i<n;i++)
+ dst[i] = FLOAT_TO_SHORT(rgba[i][BCOMP]);
+ break;
+ case GL_ALPHA:
+ for (i=0;i<n;i++)
+ dst[i] = FLOAT_TO_SHORT(rgba[i][ACOMP]);
+ break;
+ case GL_LUMINANCE:
+ for (i=0;i<n;i++)
+ dst[i] = FLOAT_TO_SHORT(luminance[i]);
+ break;
+ case GL_LUMINANCE_ALPHA:
+ for (i=0;i<n;i++) {
+ dst[i*2+0] = FLOAT_TO_SHORT(luminance[i]);
+ dst[i*2+1] = FLOAT_TO_SHORT(rgba[i][ACOMP]);
}
- }
- break;
- case GL_SHORT:
- if (packing->SwapBytes) {
- for (j=0;j<elems_per_row;j++) {
- GLshort value = ((GLshort*)src)[j];
- value = ((value >> 8) & 0xff) | ((value&0xff) << 8);
- if (normalize) {
- *dst++ = SHORT_TO_FLOAT(value);
- }
- else {
- *dst++ = (GLfloat) value;
- }
+ break;
+ case GL_RGB:
+ for (i=0;i<n;i++) {
+ dst[i*3+0] = FLOAT_TO_SHORT(rgba[i][RCOMP]);
+ dst[i*3+1] = FLOAT_TO_SHORT(rgba[i][GCOMP]);
+ dst[i*3+2] = FLOAT_TO_SHORT(rgba[i][BCOMP]);
}
- }
- else {
- if (normalize) {
- for (j=0;j<elems_per_row;j++) {
- *dst++ = SHORT_TO_FLOAT(((GLshort*)src)[j]);
- }
+ break;
+ case GL_RGBA:
+ for (i=0;i<n;i++) {
+ dst[i*4+0] = FLOAT_TO_SHORT(rgba[i][RCOMP]);
+ dst[i*4+1] = FLOAT_TO_SHORT(rgba[i][GCOMP]);
+ dst[i*4+2] = FLOAT_TO_SHORT(rgba[i][BCOMP]);
+ dst[i*4+3] = FLOAT_TO_SHORT(rgba[i][ACOMP]);
}
- else {
- for (j=0;j<elems_per_row;j++) {
- *dst++ = (GLfloat) ((GLshort*)src)[j];
- }
+ break;
+ case GL_BGR:
+ for (i=0;i<n;i++) {
+ dst[i*3+0] = FLOAT_TO_SHORT(rgba[i][BCOMP]);
+ dst[i*3+1] = FLOAT_TO_SHORT(rgba[i][GCOMP]);
+ dst[i*3+2] = FLOAT_TO_SHORT(rgba[i][RCOMP]);
}
- }
- break;
- case GL_UNSIGNED_INT:
- if (packing->SwapBytes) {
- GLuint value;
- for (j=0;j<elems_per_row;j++) {
- value = ((GLuint*)src)[j];
- value = ((value & 0xff000000) >> 24)
- | ((value & 0x00ff0000) >> 8)
- | ((value & 0x0000ff00) << 8)
- | ((value & 0x000000ff) << 24);
- if (normalize) {
- *dst++ = UINT_TO_FLOAT(value);
- }
- else {
- *dst++ = (GLfloat) value;
- }
+ break;
+ case GL_BGRA:
+ for (i=0;i<n;i++) {
+ dst[i*4+0] = FLOAT_TO_SHORT(rgba[i][BCOMP]);
+ dst[i*4+1] = FLOAT_TO_SHORT(rgba[i][GCOMP]);
+ dst[i*4+2] = FLOAT_TO_SHORT(rgba[i][RCOMP]);
+ dst[i*4+3] = FLOAT_TO_SHORT(rgba[i][ACOMP]);
}
- }
- else {
- if (normalize) {
- for (j=0;j<elems_per_row;j++) {
- *dst++ = UINT_TO_FLOAT(((GLuint*)src)[j]);
- }
+ case GL_ABGR_EXT:
+ for (i=0;i<n;i++) {
+ dst[i*4+0] = FLOAT_TO_SHORT(rgba[i][ACOMP]);
+ dst[i*4+1] = FLOAT_TO_SHORT(rgba[i][BCOMP]);
+ dst[i*4+2] = FLOAT_TO_SHORT(rgba[i][GCOMP]);
+ dst[i*4+3] = FLOAT_TO_SHORT(rgba[i][RCOMP]);
}
- else {
- for (j=0;j<elems_per_row;j++) {
- *dst++ = (GLfloat) ((GLuint*)src)[j];
- }
+ break;
+ default:
+ _mesa_problem(ctx, "bad format in _mesa_pack_rgba_span\n");
+ }
+ if (dstPacking->SwapBytes) {
+ _mesa_swap2( (GLushort *) dst, n * comps );
+ }
+ }
+ break;
+ case GL_UNSIGNED_INT:
+ {
+ GLuint *dst = (GLuint *) dstAddr;
+ switch (dstFormat) {
+ case GL_RED:
+ for (i=0;i<n;i++)
+ dst[i] = FLOAT_TO_UINT(rgba[i][RCOMP]);
+ break;
+ case GL_GREEN:
+ for (i=0;i<n;i++)
+ dst[i] = FLOAT_TO_UINT(rgba[i][GCOMP]);
+ break;
+ case GL_BLUE:
+ for (i=0;i<n;i++)
+ dst[i] = FLOAT_TO_UINT(rgba[i][BCOMP]);
+ break;
+ case GL_ALPHA:
+ for (i=0;i<n;i++)
+ dst[i] = FLOAT_TO_UINT(rgba[i][ACOMP]);
+ break;
+ case GL_LUMINANCE:
+ for (i=0;i<n;i++)
+ dst[i] = FLOAT_TO_UINT(luminance[i]);
+ break;
+ case GL_LUMINANCE_ALPHA:
+ for (i=0;i<n;i++) {
+ dst[i*2+0] = FLOAT_TO_UINT(luminance[i]);
+ dst[i*2+1] = FLOAT_TO_UINT(rgba[i][ACOMP]);
}
- }
- break;
- case GL_INT:
- if (packing->SwapBytes) {
- GLint value;
- for (j=0;j<elems_per_row;j++) {
- value = ((GLint*)src)[j];
- value = ((value & 0xff000000) >> 24)
- | ((value & 0x00ff0000) >> 8)
- | ((value & 0x0000ff00) << 8)
- | ((value & 0x000000ff) << 24);
- if (normalize) {
- *dst++ = INT_TO_FLOAT(value);
- }
- else {
- *dst++ = (GLfloat) value;
- }
+ break;
+ case GL_RGB:
+ for (i=0;i<n;i++) {
+ dst[i*3+0] = FLOAT_TO_UINT(rgba[i][RCOMP]);
+ dst[i*3+1] = FLOAT_TO_UINT(rgba[i][GCOMP]);
+ dst[i*3+2] = FLOAT_TO_UINT(rgba[i][BCOMP]);
}
- }
- else {
- if (normalize) {
- for (j=0;j<elems_per_row;j++) {
- *dst++ = INT_TO_FLOAT(((GLint*)src)[j]);
- }
+ break;
+ case GL_RGBA:
+ for (i=0;i<n;i++) {
+ dst[i*4+0] = FLOAT_TO_UINT(rgba[i][RCOMP]);
+ dst[i*4+1] = FLOAT_TO_UINT(rgba[i][GCOMP]);
+ dst[i*4+2] = FLOAT_TO_UINT(rgba[i][BCOMP]);
+ dst[i*4+3] = FLOAT_TO_UINT(rgba[i][ACOMP]);
}
- else {
- for (j=0;j<elems_per_row;j++) {
- *dst++ = (GLfloat) ((GLint*)src)[j];
- }
+ break;
+ case GL_BGR:
+ for (i=0;i<n;i++) {
+ dst[i*3+0] = FLOAT_TO_UINT(rgba[i][BCOMP]);
+ dst[i*3+1] = FLOAT_TO_UINT(rgba[i][GCOMP]);
+ dst[i*3+2] = FLOAT_TO_UINT(rgba[i][RCOMP]);
}
- }
- break;
- case GL_FLOAT:
- if (packing->SwapBytes) {
- GLint value;
- for (j=0;j<elems_per_row;j++) {
- value = ((GLuint*)src)[j];
- value = ((value & 0xff000000) >> 24)
- | ((value & 0x00ff0000) >> 8)
- | ((value & 0x0000ff00) << 8)
- | ((value & 0x000000ff) << 24);
- *dst++ = *((GLfloat*) &value);
+ break;
+ case GL_BGRA:
+ for (i=0;i<n;i++) {
+ dst[i*4+0] = FLOAT_TO_UINT(rgba[i][BCOMP]);
+ dst[i*4+1] = FLOAT_TO_UINT(rgba[i][GCOMP]);
+ dst[i*4+2] = FLOAT_TO_UINT(rgba[i][RCOMP]);
+ dst[i*4+3] = FLOAT_TO_UINT(rgba[i][ACOMP]);
}
- }
- else {
- MEMCPY( dst, src, elems_per_row*sizeof(GLfloat) );
- dst += elems_per_row;
- }
- break;
- case GL_UNSIGNED_BYTE_3_3_2:
- {
- GLubyte *ubsrc = (GLubyte *) src;
- for (j=0;j<width;j++) {
- GLubyte p = ubsrc[j];
- *dst++ = ((p >> 5) ) * (1.0F / 7.0F); /* red */
- *dst++ = ((p >> 2) & 0x7) * (1.0F / 7.0F); /* green */
- *dst++ = ((p ) & 0x3) * (1.0F / 3.0F); /* blue */
+ break;
+ case GL_ABGR_EXT:
+ for (i=0;i<n;i++) {
+ dst[i*4+0] = FLOAT_TO_UINT(rgba[i][ACOMP]);
+ dst[i*4+1] = FLOAT_TO_UINT(rgba[i][BCOMP]);
+ dst[i*4+2] = FLOAT_TO_UINT(rgba[i][GCOMP]);
+ dst[i*4+3] = FLOAT_TO_UINT(rgba[i][RCOMP]);
}
- }
- break;
- case GL_UNSIGNED_BYTE_2_3_3_REV:
- {
- GLubyte *ubsrc = (GLubyte *) src;
- for (j=0;j<width;j++) {
- GLubyte p = ubsrc[j];
- *dst++ = ((p ) & 0x7) * (1.0F / 7.0F); /* red */
- *dst++ = ((p >> 3) & 0x7) * (1.0F / 7.0F); /* green */
- *dst++ = ((p >> 6) ) * (1.0F / 3.0F); /* blue */
+ break;
+ default:
+ _mesa_problem(ctx, "bad format in _mesa_pack_rgba_span\n");
+ }
+ if (dstPacking->SwapBytes) {
+ _mesa_swap4( (GLuint *) dst, n * comps );
+ }
+ }
+ break;
+ case GL_INT:
+ {
+ GLint *dst = (GLint *) dstAddr;
+ switch (dstFormat) {
+ case GL_RED:
+ for (i=0;i<n;i++)
+ dst[i] = FLOAT_TO_INT(rgba[i][RCOMP]);
+ break;
+ case GL_GREEN:
+ for (i=0;i<n;i++)
+ dst[i] = FLOAT_TO_INT(rgba[i][GCOMP]);
+ break;
+ case GL_BLUE:
+ for (i=0;i<n;i++)
+ dst[i] = FLOAT_TO_INT(rgba[i][BCOMP]);
+ break;
+ case GL_ALPHA:
+ for (i=0;i<n;i++)
+ dst[i] = FLOAT_TO_INT(rgba[i][ACOMP]);
+ break;
+ case GL_LUMINANCE:
+ for (i=0;i<n;i++)
+ dst[i] = FLOAT_TO_INT(luminance[i]);
+ break;
+ case GL_LUMINANCE_ALPHA:
+ for (i=0;i<n;i++) {
+ dst[i*2+0] = FLOAT_TO_INT(luminance[i]);
+ dst[i*2+1] = FLOAT_TO_INT(rgba[i][ACOMP]);
}
- }
- break;
- case GL_UNSIGNED_SHORT_5_6_5:
- {
- GLushort *ussrc = (GLushort *) src;
- for (j=0;j<width;j++) {
- GLushort p = ussrc[j];
- *dst++ = ((p >> 11) ) * (1.0F / 31.0F); /* red */
- *dst++ = ((p >> 5) & 0x3f) * (1.0F / 63.0F); /* green */
- *dst++ = ((p ) & 0x1f) * (1.0F / 31.0F); /* blue */
+ break;
+ case GL_RGB:
+ for (i=0;i<n;i++) {
+ dst[i*3+0] = FLOAT_TO_INT(rgba[i][RCOMP]);
+ dst[i*3+1] = FLOAT_TO_INT(rgba[i][GCOMP]);
+ dst[i*3+2] = FLOAT_TO_INT(rgba[i][BCOMP]);
}
- }
- break;
- case GL_UNSIGNED_SHORT_5_6_5_REV:
- {
- GLushort *ussrc = (GLushort *) src;
- for (j=0;j<width;j++) {
- GLushort p = ussrc[j];
- *dst++ = ((p ) & 0x1f) * (1.0F / 31.0F); /* red */
- *dst++ = ((p >> 5) & 0x3f) * (1.0F / 63.0F); /* green */
- *dst++ = ((p >> 11) ) * (1.0F / 31.0F); /* blue */
+ break;
+ case GL_RGBA:
+ for (i=0;i<n;i++) {
+ dst[i*4+0] = FLOAT_TO_INT(rgba[i][RCOMP]);
+ dst[i*4+1] = FLOAT_TO_INT(rgba[i][GCOMP]);
+ dst[i*4+2] = FLOAT_TO_INT(rgba[i][BCOMP]);
+ dst[i*4+3] = FLOAT_TO_INT(rgba[i][ACOMP]);
}
- }
- break;
- case GL_UNSIGNED_SHORT_4_4_4_4:
- {
- GLushort *ussrc = (GLushort *) src;
- for (j=0;j<width;j++) {
- GLushort p = ussrc[j];
- *dst++ = ((p >> 12) ) * (1.0F / 15.0F); /* red */
- *dst++ = ((p >> 8) & 0xf) * (1.0F / 15.0F); /* green */
- *dst++ = ((p >> 4) & 0xf) * (1.0F / 15.0F); /* blue */
- *dst++ = ((p ) & 0xf) * (1.0F / 15.0F); /* alpha */
+ break;
+ case GL_BGR:
+ for (i=0;i<n;i++) {
+ dst[i*3+0] = FLOAT_TO_INT(rgba[i][BCOMP]);
+ dst[i*3+1] = FLOAT_TO_INT(rgba[i][GCOMP]);
+ dst[i*3+2] = FLOAT_TO_INT(rgba[i][RCOMP]);
}
- }
- break;
- case GL_UNSIGNED_SHORT_4_4_4_4_REV:
- {
- GLushort *ussrc = (GLushort *) src;
- for (j=0;j<width;j++) {
- GLushort p = ussrc[j];
- *dst++ = ((p ) & 0xf) * (1.0F / 15.0F); /* red */
- *dst++ = ((p >> 4) & 0xf) * (1.0F / 15.0F); /* green */
- *dst++ = ((p >> 8) & 0xf) * (1.0F / 15.0F); /* blue */
- *dst++ = ((p >> 12) ) * (1.0F / 15.0F); /* alpha */
+ break;
+ case GL_BGRA:
+ for (i=0;i<n;i++) {
+ dst[i*4+0] = FLOAT_TO_INT(rgba[i][BCOMP]);
+ dst[i*4+1] = FLOAT_TO_INT(rgba[i][GCOMP]);
+ dst[i*4+2] = FLOAT_TO_INT(rgba[i][RCOMP]);
+ dst[i*4+3] = FLOAT_TO_INT(rgba[i][ACOMP]);
}
- }
- break;
- case GL_UNSIGNED_SHORT_5_5_5_1:
- {
- GLushort *ussrc = (GLushort *) src;
- for (j=0;j<width;j++) {
- GLushort p = ussrc[j];
- *dst++ = ((p >> 11) ) * (1.0F / 31.0F); /* red */
- *dst++ = ((p >> 6) & 0x1f) * (1.0F / 31.0F); /* green */
- *dst++ = ((p >> 1) & 0x1f) * (1.0F / 31.0F); /* blue */
- *dst++ = ((p ) & 0x1) * (1.0F / 1.0F); /* alpha */
+ break;
+ case GL_ABGR_EXT:
+ for (i=0;i<n;i++) {
+ dst[i*4+0] = FLOAT_TO_INT(rgba[i][ACOMP]);
+ dst[i*4+1] = FLOAT_TO_INT(rgba[i][BCOMP]);
+ dst[i*4+2] = FLOAT_TO_INT(rgba[i][GCOMP]);
+ dst[i*4+3] = FLOAT_TO_INT(rgba[i][RCOMP]);
}
- }
- break;
- case GL_UNSIGNED_SHORT_1_5_5_5_REV:
- {
- GLushort *ussrc = (GLushort *) src;
- for (j=0;j<width;j++) {
- GLushort p = ussrc[j];
- *dst++ = ((p ) & 0x1f) * (1.0F / 31.0F); /* red */
- *dst++ = ((p >> 5) & 0x1f) * (1.0F / 31.0F); /* green */
- *dst++ = ((p >> 10) & 0x1f) * (1.0F / 31.0F); /* blue */
- *dst++ = ((p >> 15) ) * (1.0F / 1.0F); /* alpha */
+ break;
+ default:
+ _mesa_problem(ctx, "bad format in _mesa_pack_rgba_span\n");
+ }
+ if (dstPacking->SwapBytes) {
+ _mesa_swap4( (GLuint *) dst, n * comps );
+ }
+ }
+ break;
+ case GL_FLOAT:
+ {
+ GLfloat *dst = (GLfloat *) dstAddr;
+ switch (dstFormat) {
+ case GL_RED:
+ for (i=0;i<n;i++)
+ dst[i] = rgba[i][RCOMP];
+ break;
+ case GL_GREEN:
+ for (i=0;i<n;i++)
+ dst[i] = rgba[i][GCOMP];
+ break;
+ case GL_BLUE:
+ for (i=0;i<n;i++)
+ dst[i] = rgba[i][BCOMP];
+ break;
+ case GL_ALPHA:
+ for (i=0;i<n;i++)
+ dst[i] = rgba[i][ACOMP];
+ break;
+ case GL_LUMINANCE:
+ for (i=0;i<n;i++)
+ dst[i] = luminance[i];
+ break;
+ case GL_LUMINANCE_ALPHA:
+ for (i=0;i<n;i++) {
+ dst[i*2+0] = luminance[i];
+ dst[i*2+1] = rgba[i][ACOMP];
}
- }
- break;
- case GL_UNSIGNED_INT_8_8_8_8:
- {
- GLuint *uisrc = (GLuint *) src;
- for (j=0;j<width;j++) {
- GLuint p = uisrc[j];
- *dst++ = UBYTE_COLOR_TO_FLOAT_COLOR((p >> 24) );
- *dst++ = UBYTE_COLOR_TO_FLOAT_COLOR((p >> 16) & 0xff);
- *dst++ = UBYTE_COLOR_TO_FLOAT_COLOR((p >> 8) & 0xff);
- *dst++ = UBYTE_COLOR_TO_FLOAT_COLOR((p ) & 0xff);
+ break;
+ case GL_RGB:
+ for (i=0;i<n;i++) {
+ dst[i*3+0] = rgba[i][RCOMP];
+ dst[i*3+1] = rgba[i][GCOMP];
+ dst[i*3+2] = rgba[i][BCOMP];
}
- }
- break;
- case GL_UNSIGNED_INT_8_8_8_8_REV:
- {
- GLuint *uisrc = (GLuint *) src;
- for (j=0;j<width;j++) {
- GLuint p = uisrc[j];
- *dst++ = UBYTE_COLOR_TO_FLOAT_COLOR((p ) & 0xff);
- *dst++ = UBYTE_COLOR_TO_FLOAT_COLOR((p >> 8) & 0xff);
- *dst++ = UBYTE_COLOR_TO_FLOAT_COLOR((p >> 16) & 0xff);
- *dst++ = UBYTE_COLOR_TO_FLOAT_COLOR((p >> 24) );
+ break;
+ case GL_RGBA:
+ for (i=0;i<n;i++) {
+ dst[i*4+0] = rgba[i][RCOMP];
+ dst[i*4+1] = rgba[i][GCOMP];
+ dst[i*4+2] = rgba[i][BCOMP];
+ dst[i*4+3] = rgba[i][ACOMP];
}
- }
- break;
- case GL_UNSIGNED_INT_10_10_10_2:
- {
- GLuint *uisrc = (GLuint *) src;
- for (j=0;j<width;j++) {
- GLuint p = uisrc[j];
- *dst++ = ((p >> 22) ) * (1.0F / 1023.0F); /* r */
- *dst++ = ((p >> 12) & 0x3ff) * (1.0F / 1023.0F); /* g */
- *dst++ = ((p >> 2) & 0x3ff) * (1.0F / 1023.0F); /* b */
- *dst++ = ((p ) & 0x3 ) * (1.0F / 3.0F); /* a */
+ break;
+ case GL_BGR:
+ for (i=0;i<n;i++) {
+ dst[i*3+0] = rgba[i][BCOMP];
+ dst[i*3+1] = rgba[i][GCOMP];
+ dst[i*3+2] = rgba[i][RCOMP];
}
- }
- break;
- case GL_UNSIGNED_INT_2_10_10_10_REV:
- {
- GLuint *uisrc = (GLuint *) src;
- for (j=0;j<width;j++) {
- GLuint p = uisrc[j];
- *dst++ = ((p ) & 0x3ff) * (1.0F / 1023.0F); /* r*/
- *dst++ = ((p >> 10) & 0x3ff) * (1.0F / 1023.0F); /* g */
- *dst++ = ((p >> 20) & 0x3ff) * (1.0F / 1023.0F); /* b */
- *dst++ = ((p >> 30) ) * (1.0F / 3.0F); /* a */
+ break;
+ case GL_BGRA:
+ for (i=0;i<n;i++) {
+ dst[i*4+0] = rgba[i][BCOMP];
+ dst[i*4+1] = rgba[i][GCOMP];
+ dst[i*4+2] = rgba[i][RCOMP];
+ dst[i*4+3] = rgba[i][ACOMP];
}
- }
- break;
- default:
- gl_problem(ctx, "unpack_float_image type" );
- return image;
+ break;
+ case GL_ABGR_EXT:
+ for (i=0;i<n;i++) {
+ dst[i*4+0] = rgba[i][ACOMP];
+ dst[i*4+1] = rgba[i][BCOMP];
+ dst[i*4+2] = rgba[i][GCOMP];
+ dst[i*4+3] = rgba[i][RCOMP];
+ }
+ break;
+ default:
+ _mesa_problem(ctx, "bad format in _mesa_pack_rgba_span\n");
+ }
+ if (dstPacking->SwapBytes) {
+ _mesa_swap4( (GLuint *) dst, n * comps );
+ }
}
- }
- }
-
- if (format == GL_BGR) {
- /* swap order of every float triplet from BGR to RGBA */
- GLfloat *buffer = (GLfloat *) image->Data;
- for (i=0; i<width*height*depth; i++) {
- GLfloat b = buffer[i*3+0];
- GLfloat r = buffer[i*3+2];
- buffer[i*3+0] = r;
- buffer[i*3+2] = b;
- }
- }
- else if (format == GL_BGRA) {
- /* swap order of every float quadruplet from BGRA to RGBA */
- GLfloat *buffer = (GLfloat *) image->Data;
- for (i=0; i<width*height*depth; i++) {
- GLfloat b = buffer[i*4+0];
- GLfloat r = buffer[i*4+2];
- buffer[i*4+0] = r;
- buffer[i*4+2] = b;
- }
- }
- else if (format == GL_ABGR_EXT) {
- /* swap order of every float quadruplet from ABGR to RGBA */
- GLfloat *buffer = (GLfloat *) image->Data;
- for (i=0; i<width*height*depth; i++) {
- GLfloat a = buffer[i*4+0];
- GLfloat b = buffer[i*4+1];
- GLfloat g = buffer[i*4+2];
- GLfloat r = buffer[i*4+3];
- buffer[i*4+0] = r;
- buffer[i*4+1] = g;
- buffer[i*4+2] = b;
- buffer[i*4+3] = a;
- }
- }
-
- return image;
-}
-
-
-
-/*
- * Unpack a bitmap image, using current glPixelStore parameters,
- * making a new gl_image.
- */
-struct gl_image *gl_unpack_bitmap( GLcontext *ctx,
- GLsizei width, GLsizei height,
- const GLubyte *bitmap,
- const struct gl_pixelstore_attrib *packing )
-{
- return gl_unpack_image( ctx, width, height,
- GL_COLOR_INDEX, GL_BITMAP, bitmap, packing );
-}
-
-
-
-/*
- * Unpack a 2-D image from user's buffer. Return pointer to new
- * gl_image struct.
- *
- * Input: width, height - size in pixels
- * format - format of incoming pixel data
- * type - datatype of incoming pixel data
- * pixels - pointer to unpacked image in user buffer
- */
-struct gl_image *gl_unpack_image( GLcontext *ctx,
- GLint width, GLint height,
- GLenum format, GLenum type,
- const GLvoid *pixels,
- const struct gl_pixelstore_attrib *packing )
-{
- return gl_unpack_image3D( ctx, width, height, 1,
- format, type, pixels, packing );
-}
-
-
-
-/*
- * Unpack a 1, 2 or 3-D image from user-supplied address, returning a
- * pointer to a new gl_image struct.
- * This function is always called by a higher-level unpack function such
- * as gl_unpack_texsubimage() or gl_unpack_bitmap().
- *
- * Input: width, height, depth - size in pixels
- * format - format of incoming pixel data
- * type - datatype of incoming pixel data
- * pixels - pointer to unpacked image.
- */
-struct gl_image *gl_unpack_image3D( GLcontext *ctx,
- GLint width, GLint height, GLint depth,
- GLenum format, GLenum type,
- const GLvoid *pixels,
- const struct gl_pixelstore_attrib *packing)
-{
- if (width <= 0 || height <= 0 || depth <= 0) {
- return alloc_error_image(width, height, depth, format, type);
- }
-
- if (type==GL_BITMAP) {
- if (format != GL_COLOR_INDEX && format != GL_STENCIL_INDEX) {
- return alloc_error_image(width, height, depth, format, type);
- }
- else {
- return unpack_bitmap( format, width, height, pixels, packing );
- }
- }
- else if (format==GL_DEPTH_COMPONENT) {
- /* TODO: pack as GLdepth values (GLushort or GLuint) */
- return unpack_depth_image( ctx, type, width, height, pixels, packing );
- }
- else if (format==GL_STENCIL_INDEX) {
- /* TODO: pack as GLstencil (GLubyte or GLushort) */
- return unpack_stencil_image( ctx, type, width, height, pixels, packing );
- }
- else if (type==GL_UNSIGNED_BYTE) {
- /* upack, convert to GLubytes */
- return unpack_ubyte_image( width, height, depth, format, pixels, packing );
- }
- else {
- /* upack, convert to floats */
- return unpack_float_image( ctx, width, height, depth,
- format, type, pixels, packing );
- }
-
- /* never get here */
- /*return NULL;*/
-}
-
-
-/*
- * Apply pixel-transfer operations (scale, bias, mapping) to a single row
- * of a gl_image. Put resulting color components into result array.
- */
-void gl_scale_bias_map_image_data( const GLcontext *ctx,
- const struct gl_image *image,
- GLint row, GLubyte result[] )
-{
- GLint start, i;
-
- assert(ctx);
- assert(image);
- assert(result);
- assert(row >= 0);
-
- start = row * image->Width * image->Components;
-
- for (i=0; i < image->Width; i++) {
- GLint pos = start+i;
- GLfloat red, green, blue, alpha;
- if (image->Type == GL_UNSIGNED_BYTE) {
- const GLubyte *data = (GLubyte *) image->Data;
- switch (image->Format) {
- case GL_RED:
- red = data[pos] * (1.0F/255.0F);
- green = 0;
- blue = 0;
- alpha = 0;
- break;
- case GL_RGB:
- red = data[pos*3+0] * (1.0F/255.0F);
- green = data[pos*3+1] * (1.0F/255.0F);
- blue = data[pos*3+2] * (1.0F/255.0F);
- alpha = 0;
- break;
- default:
- gl_problem(ctx, "bad image format in gl_scale...image_data");
- return;
+ break;
+ case GL_HALF_FLOAT_NV:
+ {
+ GLhalfNV *dst = (GLhalfNV *) dstAddr;
+ switch (dstFormat) {
+ case GL_RED:
+ for (i=0;i<n;i++)
+ dst[i] = _mesa_float_to_half(rgba[i][RCOMP]);
+ break;
+ case GL_GREEN:
+ for (i=0;i<n;i++)
+ dst[i] = _mesa_float_to_half(rgba[i][GCOMP]);
+ break;
+ case GL_BLUE:
+ for (i=0;i<n;i++)
+ dst[i] = _mesa_float_to_half(rgba[i][BCOMP]);
+ break;
+ case GL_ALPHA:
+ for (i=0;i<n;i++)
+ dst[i] = _mesa_float_to_half(rgba[i][ACOMP]);
+ break;
+ case GL_LUMINANCE:
+ for (i=0;i<n;i++)
+ dst[i] = _mesa_float_to_half(luminance[i]);
+ break;
+ case GL_LUMINANCE_ALPHA:
+ for (i=0;i<n;i++) {
+ dst[i*2+0] = _mesa_float_to_half(luminance[i]);
+ dst[i*2+1] = _mesa_float_to_half(rgba[i][ACOMP]);
+ }
+ break;
+ case GL_RGB:
+ for (i=0;i<n;i++) {
+ dst[i*3+0] = _mesa_float_to_half(rgba[i][RCOMP]);
+ dst[i*3+1] = _mesa_float_to_half(rgba[i][GCOMP]);
+ dst[i*3+2] = _mesa_float_to_half(rgba[i][BCOMP]);
+ }
+ break;
+ case GL_RGBA:
+ for (i=0;i<n;i++) {
+ dst[i*4+0] = _mesa_float_to_half(rgba[i][RCOMP]);
+ dst[i*4+1] = _mesa_float_to_half(rgba[i][GCOMP]);
+ dst[i*4+2] = _mesa_float_to_half(rgba[i][BCOMP]);
+ dst[i*4+3] = _mesa_float_to_half(rgba[i][ACOMP]);
+ }
+ break;
+ case GL_BGR:
+ for (i=0;i<n;i++) {
+ dst[i*3+0] = _mesa_float_to_half(rgba[i][BCOMP]);
+ dst[i*3+1] = _mesa_float_to_half(rgba[i][GCOMP]);
+ dst[i*3+2] = _mesa_float_to_half(rgba[i][RCOMP]);
+ }
+ break;
+ case GL_BGRA:
+ for (i=0;i<n;i++) {
+ dst[i*4+0] = _mesa_float_to_half(rgba[i][BCOMP]);
+ dst[i*4+1] = _mesa_float_to_half(rgba[i][GCOMP]);
+ dst[i*4+2] = _mesa_float_to_half(rgba[i][RCOMP]);
+ dst[i*4+3] = _mesa_float_to_half(rgba[i][ACOMP]);
+ }
+ break;
+ case GL_ABGR_EXT:
+ for (i=0;i<n;i++) {
+ dst[i*4+0] = _mesa_float_to_half(rgba[i][ACOMP]);
+ dst[i*4+1] = _mesa_float_to_half(rgba[i][BCOMP]);
+ dst[i*4+2] = _mesa_float_to_half(rgba[i][GCOMP]);
+ dst[i*4+3] = _mesa_float_to_half(rgba[i][RCOMP]);
+ }
+ break;
+ default:
+ _mesa_problem(ctx, "bad format in _mesa_pack_rgba_span\n");
+ }
+ if (dstPacking->SwapBytes) {
+ _mesa_swap2( (GLushort *) dst, n * comps );
+ }
}
- }
- else if (image->Type == GL_FLOAT) {
- const GLubyte *data = (GLubyte *) image->Data;
- switch (image->Format) {
- case GL_RED:
- red = data[pos];
- green = 0;
- blue = 0;
- alpha = 0;
- break;
- case GL_RGB:
- red = data[pos*3+0];
- green = data[pos*3+1];
- blue = data[pos*3+2];
- alpha = 0;
- break;
- default:
- gl_problem(ctx, "bad image format in gl_scale...image_data");
- return;
+ break;
+ case GL_UNSIGNED_BYTE_3_3_2:
+ if (dstFormat == GL_RGB) {
+ GLubyte *dst = (GLubyte *) dstAddr;
+ for (i=0;i<n;i++) {
+ dst[i] = (((GLint) (rgba[i][RCOMP] * 7.0F)) << 5)
+ | (((GLint) (rgba[i][GCOMP] * 7.0F)) << 2)
+ | (((GLint) (rgba[i][BCOMP] * 3.0F)) );
+ }
}
- }
- else {
- gl_problem(ctx, "Bad image type in gl_scale_...image_data");
- return;
- }
-
- assert(red >= 0.0 && red <= 1.0);
- assert(green >= 0.0 && green <= 1.0);
- assert(blue >= 0.0 && blue <= 1.0);
- assert(alpha >= 0.0 && alpha <= 1.0);
-
- /*
- if (scale or bias) {
-
-
- }
- if (mapping) {
-
- }
- */
-
- result[i*4+0] = (GLubyte) (red * 255.0);
- result[i*4+1] = (GLubyte) (green * 255.0);
- result[i*4+2] = (GLubyte) (blue * 255.0);
- result[i*4+3] = (GLubyte) (alpha * 255.0);
+ break;
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
+ if (dstFormat == GL_RGB) {
+ GLubyte *dst = (GLubyte *) dstAddr;
+ for (i=0;i<n;i++) {
+ dst[i] = (((GLint) (rgba[i][RCOMP] * 7.0F)) )
+ | (((GLint) (rgba[i][GCOMP] * 7.0F)) << 3)
+ | (((GLint) (rgba[i][BCOMP] * 3.0F)) << 5);
+ }
+ }
+ break;
+ case GL_UNSIGNED_SHORT_5_6_5:
+ if (dstFormat == GL_RGB) {
+ GLushort *dst = (GLushort *) dstAddr;
+ for (i=0;i<n;i++) {
+ dst[i] = (((GLint) (rgba[i][RCOMP] * 31.0F)) << 11)
+ | (((GLint) (rgba[i][GCOMP] * 63.0F)) << 5)
+ | (((GLint) (rgba[i][BCOMP] * 31.0F)) );
+ }
+ }
+ break;
+ case GL_UNSIGNED_SHORT_5_6_5_REV:
+ if (dstFormat == GL_RGB) {
+ GLushort *dst = (GLushort *) dstAddr;
+ for (i=0;i<n;i++) {
+ dst[i] = (((GLint) (rgba[i][RCOMP] * 31.0F)) )
+ | (((GLint) (rgba[i][GCOMP] * 63.0F)) << 5)
+ | (((GLint) (rgba[i][BCOMP] * 31.0F)) << 11);
+ }
+ }
+ break;
+ case GL_UNSIGNED_SHORT_4_4_4_4:
+ if (dstFormat == GL_RGBA) {
+ GLushort *dst = (GLushort *) dstAddr;
+ for (i=0;i<n;i++) {
+ dst[i] = (((GLint) (rgba[i][RCOMP] * 15.0F)) << 12)
+ | (((GLint) (rgba[i][GCOMP] * 15.0F)) << 8)
+ | (((GLint) (rgba[i][BCOMP] * 15.0F)) << 4)
+ | (((GLint) (rgba[i][ACOMP] * 15.0F)) );
+ }
+ }
+ else if (dstFormat == GL_BGRA) {
+ GLushort *dst = (GLushort *) dstAddr;
+ for (i=0;i<n;i++) {
+ dst[i] = (((GLint) (rgba[i][BCOMP] * 15.0F)) << 12)
+ | (((GLint) (rgba[i][GCOMP] * 15.0F)) << 8)
+ | (((GLint) (rgba[i][RCOMP] * 15.0F)) << 4)
+ | (((GLint) (rgba[i][ACOMP] * 15.0F)) );
+ }
+ }
+ else if (dstFormat == GL_ABGR_EXT) {
+ GLushort *dst = (GLushort *) dstAddr;
+ for (i=0;i<n;i++) {
+ dst[i] = (((GLint) (rgba[i][ACOMP] * 15.0F)) << 4)
+ | (((GLint) (rgba[i][BCOMP] * 15.0F)) << 8)
+ | (((GLint) (rgba[i][GCOMP] * 15.0F)) << 12)
+ | (((GLint) (rgba[i][RCOMP] * 15.0F)) );
+ }
+ }
+ break;
+ case GL_UNSIGNED_SHORT_4_4_4_4_REV:
+ if (dstFormat == GL_RGBA) {
+ GLushort *dst = (GLushort *) dstAddr;
+ for (i=0;i<n;i++) {
+ dst[i] = (((GLint) (rgba[i][RCOMP] * 15.0F)) )
+ | (((GLint) (rgba[i][GCOMP] * 15.0F)) << 4)
+ | (((GLint) (rgba[i][BCOMP] * 15.0F)) << 8)
+ | (((GLint) (rgba[i][ACOMP] * 15.0F)) << 12);
+ }
+ }
+ else if (dstFormat == GL_BGRA) {
+ GLushort *dst = (GLushort *) dstAddr;
+ for (i=0;i<n;i++) {
+ dst[i] = (((GLint) (rgba[i][BCOMP] * 15.0F)) )
+ | (((GLint) (rgba[i][GCOMP] * 15.0F)) << 4)
+ | (((GLint) (rgba[i][RCOMP] * 15.0F)) << 8)
+ | (((GLint) (rgba[i][ACOMP] * 15.0F)) << 12);
+ }
+ }
+ else if (dstFormat == GL_ABGR_EXT) {
+ GLushort *dst = (GLushort *) dstAddr;
+ for (i=0;i<n;i++) {
+ dst[i] = (((GLint) (rgba[i][ACOMP] * 15.0F)) )
+ | (((GLint) (rgba[i][BCOMP] * 15.0F)) << 4)
+ | (((GLint) (rgba[i][GCOMP] * 15.0F)) << 8)
+ | (((GLint) (rgba[i][RCOMP] * 15.0F)) << 12);
+ }
+ }
+ break;
+ case GL_UNSIGNED_SHORT_5_5_5_1:
+ if (dstFormat == GL_RGBA) {
+ GLushort *dst = (GLushort *) dstAddr;
+ for (i=0;i<n;i++) {
+ dst[i] = (((GLint) (rgba[i][RCOMP] * 31.0F)) << 11)
+ | (((GLint) (rgba[i][GCOMP] * 31.0F)) << 6)
+ | (((GLint) (rgba[i][BCOMP] * 31.0F)) << 1)
+ | (((GLint) (rgba[i][ACOMP] * 1.0F)) );
+ }
+ }
+ else if (dstFormat == GL_BGRA) {
+ GLushort *dst = (GLushort *) dstAddr;
+ for (i=0;i<n;i++) {
+ dst[i] = (((GLint) (rgba[i][BCOMP] * 31.0F)) << 11)
+ | (((GLint) (rgba[i][GCOMP] * 31.0F)) << 6)
+ | (((GLint) (rgba[i][RCOMP] * 31.0F)) << 1)
+ | (((GLint) (rgba[i][ACOMP] * 1.0F)) );
+ }
+ }
+ else if (dstFormat == GL_ABGR_EXT) {
+ GLushort *dst = (GLushort *) dstAddr;
+ for (i=0;i<n;i++) {
+ dst[i] = (((GLint) (rgba[i][ACOMP] * 31.0F)) << 11)
+ | (((GLint) (rgba[i][BCOMP] * 31.0F)) << 6)
+ | (((GLint) (rgba[i][GCOMP] * 31.0F)) << 1)
+ | (((GLint) (rgba[i][RCOMP] * 1.0F)) );
+ }
+ }
+ break;
+ case GL_UNSIGNED_SHORT_1_5_5_5_REV:
+ if (dstFormat == GL_RGBA) {
+ GLushort *dst = (GLushort *) dstAddr;
+ for (i=0;i<n;i++) {
+ dst[i] = (((GLint) (rgba[i][RCOMP] * 31.0F)) )
+ | (((GLint) (rgba[i][GCOMP] * 31.0F)) << 5)
+ | (((GLint) (rgba[i][BCOMP] * 31.0F)) << 10)
+ | (((GLint) (rgba[i][ACOMP] * 1.0F)) << 15);
+ }
+ }
+ else if (dstFormat == GL_BGRA) {
+ GLushort *dst = (GLushort *) dstAddr;
+ for (i=0;i<n;i++) {
+ dst[i] = (((GLint) (rgba[i][BCOMP] * 31.0F)) )
+ | (((GLint) (rgba[i][GCOMP] * 31.0F)) << 5)
+ | (((GLint) (rgba[i][RCOMP] * 31.0F)) << 10)
+ | (((GLint) (rgba[i][ACOMP] * 1.0F)) << 15);
+ }
+ }
+ else if (dstFormat == GL_ABGR_EXT) {
+ GLushort *dst = (GLushort *) dstAddr;
+ for (i=0;i<n;i++) {
+ dst[i] = (((GLint) (rgba[i][ACOMP] * 31.0F)) )
+ | (((GLint) (rgba[i][BCOMP] * 31.0F)) << 5)
+ | (((GLint) (rgba[i][GCOMP] * 31.0F)) << 10)
+ | (((GLint) (rgba[i][RCOMP] * 1.0F)) << 15);
+ }
+ }
+ break;
+ case GL_UNSIGNED_INT_8_8_8_8:
+ if (dstFormat == GL_RGBA) {
+ GLuint *dst = (GLuint *) dstAddr;
+ for (i=0;i<n;i++) {
+ dst[i] = (((GLuint) (rgba[i][RCOMP] * 255.0F)) << 24)
+ | (((GLuint) (rgba[i][GCOMP] * 255.0F)) << 16)
+ | (((GLuint) (rgba[i][BCOMP] * 255.0F)) << 8)
+ | (((GLuint) (rgba[i][ACOMP] * 255.0F)) );
+ }
+ }
+ else if (dstFormat == GL_BGRA) {
+ GLuint *dst = (GLuint *) dstAddr;
+ for (i=0;i<n;i++) {
+ dst[i] = (((GLuint) (rgba[i][BCOMP] * 255.0F)) << 24)
+ | (((GLuint) (rgba[i][GCOMP] * 255.0F)) << 16)
+ | (((GLuint) (rgba[i][RCOMP] * 255.0F)) << 8)
+ | (((GLuint) (rgba[i][ACOMP] * 255.0F)) );
+ }
+ }
+ else if (dstFormat == GL_ABGR_EXT) {
+ GLuint *dst = (GLuint *) dstAddr;
+ for (i=0;i<n;i++) {
+ dst[i] = (((GLuint) (rgba[i][ACOMP] * 255.0F)) << 24)
+ | (((GLuint) (rgba[i][BCOMP] * 255.0F)) << 16)
+ | (((GLuint) (rgba[i][GCOMP] * 255.0F)) << 8)
+ | (((GLuint) (rgba[i][RCOMP] * 255.0F)) );
+ }
+ }
+ break;
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
+ if (dstFormat == GL_RGBA) {
+ GLuint *dst = (GLuint *) dstAddr;
+ for (i=0;i<n;i++) {
+ dst[i] = (((GLuint) (rgba[i][RCOMP] * 255.0F)) )
+ | (((GLuint) (rgba[i][GCOMP] * 255.0F)) << 8)
+ | (((GLuint) (rgba[i][BCOMP] * 255.0F)) << 16)
+ | (((GLuint) (rgba[i][ACOMP] * 255.0F)) << 24);
+ }
+ }
+ else if (dstFormat == GL_BGRA) {
+ GLuint *dst = (GLuint *) dstAddr;
+ for (i=0;i<n;i++) {
+ dst[i] = (((GLuint) (rgba[i][BCOMP] * 255.0F)) )
+ | (((GLuint) (rgba[i][GCOMP] * 255.0F)) << 8)
+ | (((GLuint) (rgba[i][RCOMP] * 255.0F)) << 16)
+ | (((GLuint) (rgba[i][ACOMP] * 255.0F)) << 24);
+ }
+ }
+ else if (dstFormat == GL_ABGR_EXT) {
+ GLuint *dst = (GLuint *) dstAddr;
+ for (i=0;i<n;i++) {
+ dst[i] = (((GLuint) (rgba[i][ACOMP] * 255.0F)) )
+ | (((GLuint) (rgba[i][BCOMP] * 255.0F)) << 8)
+ | (((GLuint) (rgba[i][GCOMP] * 255.0F)) << 16)
+ | (((GLuint) (rgba[i][RCOMP] * 255.0F)) << 24);
+ }
+ }
+ break;
+ case GL_UNSIGNED_INT_10_10_10_2:
+ if (dstFormat == GL_RGBA) {
+ GLuint *dst = (GLuint *) dstAddr;
+ for (i=0;i<n;i++) {
+ dst[i] = (((GLuint) (rgba[i][RCOMP] * 1023.0F)) << 22)
+ | (((GLuint) (rgba[i][GCOMP] * 1023.0F)) << 12)
+ | (((GLuint) (rgba[i][BCOMP] * 1023.0F)) << 2)
+ | (((GLuint) (rgba[i][ACOMP] * 3.0F)) );
+ }
+ }
+ else if (dstFormat == GL_BGRA) {
+ GLuint *dst = (GLuint *) dstAddr;
+ for (i=0;i<n;i++) {
+ dst[i] = (((GLuint) (rgba[i][BCOMP] * 1023.0F)) << 22)
+ | (((GLuint) (rgba[i][GCOMP] * 1023.0F)) << 12)
+ | (((GLuint) (rgba[i][RCOMP] * 1023.0F)) << 2)
+ | (((GLuint) (rgba[i][ACOMP] * 3.0F)) );
+ }
+ }
+ else if (dstFormat == GL_ABGR_EXT) {
+ GLuint *dst = (GLuint *) dstAddr;
+ for (i=0;i<n;i++) {
+ dst[i] = (((GLuint) (rgba[i][ACOMP] * 1023.0F)) << 22)
+ | (((GLuint) (rgba[i][BCOMP] * 1023.0F)) << 12)
+ | (((GLuint) (rgba[i][GCOMP] * 1023.0F)) << 2)
+ | (((GLuint) (rgba[i][RCOMP] * 3.0F)) );
+ }
+ }
+ break;
+ case GL_UNSIGNED_INT_2_10_10_10_REV:
+ if (dstFormat == GL_RGBA) {
+ GLuint *dst = (GLuint *) dstAddr;
+ for (i=0;i<n;i++) {
+ dst[i] = (((GLuint) (rgba[i][RCOMP] * 1023.0F)) )
+ | (((GLuint) (rgba[i][GCOMP] * 1023.0F)) << 10)
+ | (((GLuint) (rgba[i][BCOMP] * 1023.0F)) << 20)
+ | (((GLuint) (rgba[i][ACOMP] * 3.0F)) << 30);
+ }
+ }
+ else if (dstFormat == GL_BGRA) {
+ GLuint *dst = (GLuint *) dstAddr;
+ for (i=0;i<n;i++) {
+ dst[i] = (((GLuint) (rgba[i][BCOMP] * 1023.0F)) )
+ | (((GLuint) (rgba[i][GCOMP] * 1023.0F)) << 10)
+ | (((GLuint) (rgba[i][RCOMP] * 1023.0F)) << 20)
+ | (((GLuint) (rgba[i][ACOMP] * 3.0F)) << 30);
+ }
+ }
+ else if (dstFormat == GL_ABGR_EXT) {
+ GLuint *dst = (GLuint *) dstAddr;
+ for (i=0;i<n;i++) {
+ dst[i] = (((GLuint) (rgba[i][ACOMP] * 1023.0F)) )
+ | (((GLuint) (rgba[i][BCOMP] * 1023.0F)) << 10)
+ | (((GLuint) (rgba[i][GCOMP] * 1023.0F)) << 20)
+ | (((GLuint) (rgba[i][RCOMP] * 3.0F)) << 30);
+ }
+ }
+ break;
+ default:
+ _mesa_problem(ctx, "bad type in _mesa_pack_float_rgba_span");
}
}
-
/*
* Pack the given RGBA span into client memory at 'dest' address
* in the given pixel format and type.
* Optionally apply the enabled pixel transfer ops.
* Pack into memory using the given packing params struct.
* This is used by glReadPixels and glGetTexImage?D()
- * Input: ctx - the context
+ * \param ctx - the context
* n - number of pixels in the span
* rgba - the pixels
* format - dest packing format
- * type - dest packing datatype
+ * type - dest packing data type
* destination - destination packing address
* packing - pixel packing parameters
- * applyTransferOps - apply scale/bias/lookup-table ops?
+ * transferOps - bitmask of IMAGE_*_BIT operations to apply
*/
-void gl_pack_rgba_span( const GLcontext *ctx,
- GLuint n, CONST GLubyte rgba[][4],
- GLenum format, GLenum type, GLvoid *destination,
- const struct gl_pixelstore_attrib *packing,
- GLboolean applyTransferOps )
+void
+_mesa_pack_rgba_span( GLcontext *ctx,
+ GLuint n, CONST GLchan srcRgba[][4],
+ GLenum dstFormat, GLenum dstType,
+ GLvoid *dstAddr,
+ const struct gl_pixelstore_attrib *dstPacking,
+ GLuint transferOps)
{
+ ASSERT((ctx->NewState & _NEW_PIXEL) == 0 || transferOps == 0);
+
/* Test for optimized case first */
- if (!ctx->Pixel.ScaleOrBiasRGBA && !ctx->Pixel.MapColorFlag &&
- format == GL_RGBA && type == GL_UNSIGNED_BYTE) {
+ if (transferOps == 0 && dstFormat == GL_RGBA && dstType == CHAN_TYPE) {
/* common simple case */
- MEMCPY( destination, rgba, n * 4 * sizeof(GLubyte) );
+ MEMCPY(dstAddr, srcRgba, n * 4 * sizeof(GLchan));
}
- else if (!ctx->Pixel.ScaleOrBiasRGBA && !ctx->Pixel.MapColorFlag &&
- format == GL_RGB && type == GL_UNSIGNED_BYTE) {
+ else if (transferOps == 0 && dstFormat == GL_RGB && dstType == CHAN_TYPE) {
/* common simple case */
- GLint i;
- GLubyte *dest = (GLubyte *) destination;
+ GLuint i;
+ GLchan *dest = (GLchan *) dstAddr;
for (i = 0; i < n; i++) {
- dest[0] = rgba[i][RCOMP];
- dest[1] = rgba[i][GCOMP];
- dest[2] = rgba[i][BCOMP];
+ dest[0] = srcRgba[i][RCOMP];
+ dest[1] = srcRgba[i][GCOMP];
+ dest[2] = srcRgba[i][BCOMP];
dest += 3;
}
}
+ else if (transferOps == 0 && dstFormat == GL_RGBA && dstType == GL_UNSIGNED_BYTE) {
+ /* common simple case */
+ GLuint i;
+ GLubyte *dest = (GLubyte *) dstAddr;
+ for (i = 0; i < n; i++) {
+ dest[0] = CHAN_TO_UBYTE(srcRgba[i][RCOMP]);
+ dest[1] = CHAN_TO_UBYTE(srcRgba[i][GCOMP]);
+ dest[2] = CHAN_TO_UBYTE(srcRgba[i][BCOMP]);
+ dest[3] = CHAN_TO_UBYTE(srcRgba[i][ACOMP]);
+ dest += 4;
+ }
+ }
else {
- GLfloat red[MAX_WIDTH], green[MAX_WIDTH], blue[MAX_WIDTH];
- GLfloat alpha[MAX_WIDTH], luminance[MAX_WIDTH];
- const GLfloat rscale = 1.0F / 255.0F;
- const GLfloat gscale = 1.0F / 255.0F;
- const GLfloat bscale = 1.0F / 255.0F;
- const GLfloat ascale = 1.0F / 255.0F;
- const GLint comps = gl_components_in_format(format);
+ /* general solution */
GLuint i;
+ DEFMARRAY(GLfloat, rgba, MAX_WIDTH, 4); /* mac 32k limitation */
+ CHECKARRAY(rgba, return); /* mac 32k limitation */
assert(n <= MAX_WIDTH);
-
/* convert color components to floating point */
for (i=0;i<n;i++) {
- red[i] = rgba[i][RCOMP] * rscale;
- green[i] = rgba[i][GCOMP] * gscale;
- blue[i] = rgba[i][BCOMP] * bscale;
- alpha[i] = rgba[i][ACOMP] * ascale;
- }
-
- /*
- * Apply scale, bias and lookup-tables if enabled.
- */
- if (applyTransferOps) {
- if (ctx->Pixel.ScaleOrBiasRGBA) {
- gl_scale_and_bias_color( ctx, n, red, green, blue, alpha );
- }
- if (ctx->Pixel.MapColorFlag) {
- gl_map_color( ctx, n, red, green, blue, alpha );
- }
- }
-
- if (format==GL_LUMINANCE || format==GL_LUMINANCE_ALPHA) {
- for (i=0;i<n;i++) {
- GLfloat sum = red[i] + green[i] + blue[i];
- luminance[i] = CLAMP( sum, 0.0F, 1.0F );
- }
- }
-
- /*
- * Pack/store the pixels. Ugh! Lots of cases!!!
- */
- switch (type) {
- case GL_UNSIGNED_BYTE:
- {
- GLubyte *dst = (GLubyte *) destination;
- switch (format) {
- case GL_RED:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_UBYTE(red[i]);
- break;
- case GL_GREEN:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_UBYTE(green[i]);
- break;
- case GL_BLUE:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_UBYTE(blue[i]);
- break;
- case GL_ALPHA:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_UBYTE(alpha[i]);
- break;
- case GL_LUMINANCE:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_UBYTE(luminance[i]);
- break;
- case GL_LUMINANCE_ALPHA:
- for (i=0;i<n;i++) {
- dst[i*2+0] = FLOAT_TO_UBYTE(luminance[i]);
- dst[i*2+1] = FLOAT_TO_UBYTE(alpha[i]);
- }
- break;
- case GL_RGB:
- for (i=0;i<n;i++) {
- dst[i*3+0] = FLOAT_TO_UBYTE(red[i]);
- dst[i*3+1] = FLOAT_TO_UBYTE(green[i]);
- dst[i*3+2] = FLOAT_TO_UBYTE(blue[i]);
- }
- break;
- case GL_RGBA:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_UBYTE(red[i]);
- dst[i*4+1] = FLOAT_TO_UBYTE(green[i]);
- dst[i*4+2] = FLOAT_TO_UBYTE(blue[i]);
- dst[i*4+3] = FLOAT_TO_UBYTE(alpha[i]);
- }
- break;
- case GL_BGR:
- for (i=0;i<n;i++) {
- dst[i*3+0] = FLOAT_TO_UBYTE(blue[i]);
- dst[i*3+1] = FLOAT_TO_UBYTE(green[i]);
- dst[i*3+2] = FLOAT_TO_UBYTE(red[i]);
- }
- break;
- case GL_BGRA:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_UBYTE(blue[i]);
- dst[i*4+1] = FLOAT_TO_UBYTE(green[i]);
- dst[i*4+2] = FLOAT_TO_UBYTE(red[i]);
- dst[i*4+3] = FLOAT_TO_UBYTE(alpha[i]);
- }
- break;
- case GL_ABGR_EXT:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_UBYTE(alpha[i]);
- dst[i*4+1] = FLOAT_TO_UBYTE(blue[i]);
- dst[i*4+2] = FLOAT_TO_UBYTE(green[i]);
- dst[i*4+3] = FLOAT_TO_UBYTE(red[i]);
- }
- break;
- default:
- gl_problem(ctx, "bad format in gl_pack_rgba_span\n");
- }
- }
- break;
- case GL_BYTE:
- {
- GLbyte *dst = (GLbyte *) destination;
- switch (format) {
- case GL_RED:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_BYTE(red[i]);
- break;
- case GL_GREEN:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_BYTE(green[i]);
- break;
- case GL_BLUE:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_BYTE(blue[i]);
- break;
- case GL_ALPHA:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_BYTE(alpha[i]);
- break;
- case GL_LUMINANCE:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_BYTE(luminance[i]);
- break;
- case GL_LUMINANCE_ALPHA:
- for (i=0;i<n;i++) {
- dst[i*2+0] = FLOAT_TO_BYTE(luminance[i]);
- dst[i*2+1] = FLOAT_TO_BYTE(alpha[i]);
- }
- break;
- case GL_RGB:
- for (i=0;i<n;i++) {
- dst[i*3+0] = FLOAT_TO_BYTE(red[i]);
- dst[i*3+1] = FLOAT_TO_BYTE(green[i]);
- dst[i*3+2] = FLOAT_TO_BYTE(blue[i]);
- }
- break;
- case GL_RGBA:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_BYTE(red[i]);
- dst[i*4+1] = FLOAT_TO_BYTE(green[i]);
- dst[i*4+2] = FLOAT_TO_BYTE(blue[i]);
- dst[i*4+3] = FLOAT_TO_BYTE(alpha[i]);
- }
- break;
- case GL_BGR:
- for (i=0;i<n;i++) {
- dst[i*3+0] = FLOAT_TO_BYTE(blue[i]);
- dst[i*3+1] = FLOAT_TO_BYTE(green[i]);
- dst[i*3+2] = FLOAT_TO_BYTE(red[i]);
- }
- break;
- case GL_BGRA:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_BYTE(blue[i]);
- dst[i*4+1] = FLOAT_TO_BYTE(green[i]);
- dst[i*4+2] = FLOAT_TO_BYTE(red[i]);
- dst[i*4+3] = FLOAT_TO_BYTE(alpha[i]);
- }
- case GL_ABGR_EXT:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_BYTE(alpha[i]);
- dst[i*4+1] = FLOAT_TO_BYTE(blue[i]);
- dst[i*4+2] = FLOAT_TO_BYTE(green[i]);
- dst[i*4+3] = FLOAT_TO_BYTE(red[i]);
- }
- break;
- default:
- gl_problem(ctx, "bad format in gl_pack_rgba_span\n");
- }
- }
- break;
- case GL_UNSIGNED_SHORT:
- {
- GLushort *dst = (GLushort *) destination;
- switch (format) {
- case GL_RED:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_USHORT(red[i]);
- break;
- case GL_GREEN:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_USHORT(green[i]);
- break;
- case GL_BLUE:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_USHORT(blue[i]);
- break;
- case GL_ALPHA:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_USHORT(alpha[i]);
- break;
- case GL_LUMINANCE:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_USHORT(luminance[i]);
- break;
- case GL_LUMINANCE_ALPHA:
- for (i=0;i<n;i++) {
- dst[i*2+0] = FLOAT_TO_USHORT(luminance[i]);
- dst[i*2+1] = FLOAT_TO_USHORT(alpha[i]);
- }
- break;
- case GL_RGB:
- for (i=0;i<n;i++) {
- dst[i*3+0] = FLOAT_TO_USHORT(red[i]);
- dst[i*3+1] = FLOAT_TO_USHORT(green[i]);
- dst[i*3+2] = FLOAT_TO_USHORT(blue[i]);
- }
- break;
- case GL_RGBA:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_USHORT(red[i]);
- dst[i*4+1] = FLOAT_TO_USHORT(green[i]);
- dst[i*4+2] = FLOAT_TO_USHORT(blue[i]);
- dst[i*4+3] = FLOAT_TO_USHORT(alpha[i]);
- }
- break;
- case GL_BGR:
- for (i=0;i<n;i++) {
- dst[i*3+0] = FLOAT_TO_USHORT(blue[i]);
- dst[i*3+1] = FLOAT_TO_USHORT(green[i]);
- dst[i*3+2] = FLOAT_TO_USHORT(red[i]);
- }
- break;
- case GL_BGRA:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_USHORT(blue[i]);
- dst[i*4+1] = FLOAT_TO_USHORT(green[i]);
- dst[i*4+2] = FLOAT_TO_USHORT(red[i]);
- dst[i*4+3] = FLOAT_TO_USHORT(alpha[i]);
- }
- break;
- case GL_ABGR_EXT:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_USHORT(alpha[i]);
- dst[i*4+1] = FLOAT_TO_USHORT(blue[i]);
- dst[i*4+2] = FLOAT_TO_USHORT(green[i]);
- dst[i*4+3] = FLOAT_TO_USHORT(red[i]);
- }
- break;
- default:
- gl_problem(ctx, "bad format in gl_pack_rgba_span\n");
- }
- if (packing->SwapBytes) {
- gl_swap2( (GLushort *) dst, n * comps);
- }
- }
- break;
- case GL_SHORT:
- {
- GLshort *dst = (GLshort *) destination;
- switch (format) {
- case GL_RED:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_SHORT(red[i]);
- break;
- case GL_GREEN:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_SHORT(green[i]);
- break;
- case GL_BLUE:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_SHORT(blue[i]);
- break;
- case GL_ALPHA:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_SHORT(alpha[i]);
- break;
- case GL_LUMINANCE:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_SHORT(luminance[i]);
- break;
- case GL_LUMINANCE_ALPHA:
- for (i=0;i<n;i++) {
- dst[i*2+0] = FLOAT_TO_SHORT(luminance[i]);
- dst[i*2+1] = FLOAT_TO_SHORT(alpha[i]);
- }
- break;
- case GL_RGB:
- for (i=0;i<n;i++) {
- dst[i*3+0] = FLOAT_TO_SHORT(red[i]);
- dst[i*3+1] = FLOAT_TO_SHORT(green[i]);
- dst[i*3+2] = FLOAT_TO_SHORT(blue[i]);
- }
- break;
- case GL_RGBA:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_SHORT(red[i]);
- dst[i*4+1] = FLOAT_TO_SHORT(green[i]);
- dst[i*4+2] = FLOAT_TO_SHORT(blue[i]);
- dst[i*4+3] = FLOAT_TO_SHORT(alpha[i]);
- }
- break;
- case GL_BGR:
- for (i=0;i<n;i++) {
- dst[i*3+0] = FLOAT_TO_SHORT(blue[i]);
- dst[i*3+1] = FLOAT_TO_SHORT(green[i]);
- dst[i*3+2] = FLOAT_TO_SHORT(red[i]);
- }
- break;
- case GL_BGRA:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_SHORT(blue[i]);
- dst[i*4+1] = FLOAT_TO_SHORT(green[i]);
- dst[i*4+2] = FLOAT_TO_SHORT(red[i]);
- dst[i*4+3] = FLOAT_TO_SHORT(alpha[i]);
- }
- case GL_ABGR_EXT:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_SHORT(alpha[i]);
- dst[i*4+1] = FLOAT_TO_SHORT(blue[i]);
- dst[i*4+2] = FLOAT_TO_SHORT(green[i]);
- dst[i*4+3] = FLOAT_TO_SHORT(red[i]);
- }
- break;
- default:
- gl_problem(ctx, "bad format in gl_pack_rgba_span\n");
- }
- if (packing->SwapBytes) {
- gl_swap2( (GLushort *) dst, n * comps );
- }
- }
- break;
- case GL_UNSIGNED_INT:
- {
- GLuint *dst = (GLuint *) destination;
- switch (format) {
- case GL_RED:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_UINT(red[i]);
- break;
- case GL_GREEN:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_UINT(green[i]);
- break;
- case GL_BLUE:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_UINT(blue[i]);
- break;
- case GL_ALPHA:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_UINT(alpha[i]);
- break;
- case GL_LUMINANCE:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_UINT(luminance[i]);
- break;
- case GL_LUMINANCE_ALPHA:
- for (i=0;i<n;i++) {
- dst[i*2+0] = FLOAT_TO_UINT(luminance[i]);
- dst[i*2+1] = FLOAT_TO_UINT(alpha[i]);
- }
- break;
- case GL_RGB:
- for (i=0;i<n;i++) {
- dst[i*3+0] = FLOAT_TO_UINT(red[i]);
- dst[i*3+1] = FLOAT_TO_UINT(green[i]);
- dst[i*3+2] = FLOAT_TO_UINT(blue[i]);
- }
- break;
- case GL_RGBA:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_UINT(red[i]);
- dst[i*4+1] = FLOAT_TO_UINT(green[i]);
- dst[i*4+2] = FLOAT_TO_UINT(blue[i]);
- dst[i*4+3] = FLOAT_TO_UINT(alpha[i]);
- }
- break;
- case GL_BGR:
- for (i=0;i<n;i++) {
- dst[i*3+0] = FLOAT_TO_UINT(blue[i]);
- dst[i*3+1] = FLOAT_TO_UINT(green[i]);
- dst[i*3+2] = FLOAT_TO_UINT(red[i]);
- }
- break;
- case GL_BGRA:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_UINT(blue[i]);
- dst[i*4+1] = FLOAT_TO_UINT(green[i]);
- dst[i*4+2] = FLOAT_TO_UINT(red[i]);
- dst[i*4+3] = FLOAT_TO_UINT(alpha[i]);
- }
- break;
- case GL_ABGR_EXT:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_UINT(alpha[i]);
- dst[i*4+1] = FLOAT_TO_UINT(blue[i]);
- dst[i*4+2] = FLOAT_TO_UINT(green[i]);
- dst[i*4+3] = FLOAT_TO_UINT(red[i]);
- }
- break;
- default:
- gl_problem(ctx, "bad format in gl_pack_rgba_span\n");
- }
- if (packing->SwapBytes) {
- gl_swap4( (GLuint *) dst, n * comps );
- }
- }
- break;
- case GL_INT:
- {
- GLint *dst = (GLint *) destination;
- switch (format) {
- case GL_RED:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_INT(red[i]);
- break;
- case GL_GREEN:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_INT(green[i]);
- break;
- case GL_BLUE:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_INT(blue[i]);
- break;
- case GL_ALPHA:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_INT(alpha[i]);
- break;
- case GL_LUMINANCE:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_INT(luminance[i]);
- break;
- case GL_LUMINANCE_ALPHA:
- for (i=0;i<n;i++) {
- dst[i*2+0] = FLOAT_TO_INT(luminance[i]);
- dst[i*2+1] = FLOAT_TO_INT(alpha[i]);
- }
- break;
- case GL_RGB:
- for (i=0;i<n;i++) {
- dst[i*3+0] = FLOAT_TO_INT(red[i]);
- dst[i*3+1] = FLOAT_TO_INT(green[i]);
- dst[i*3+2] = FLOAT_TO_INT(blue[i]);
- }
- break;
- case GL_RGBA:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_INT(red[i]);
- dst[i*4+1] = FLOAT_TO_INT(green[i]);
- dst[i*4+2] = FLOAT_TO_INT(blue[i]);
- dst[i*4+3] = FLOAT_TO_INT(alpha[i]);
- }
- break;
- case GL_BGR:
- for (i=0;i<n;i++) {
- dst[i*3+0] = FLOAT_TO_INT(blue[i]);
- dst[i*3+1] = FLOAT_TO_INT(green[i]);
- dst[i*3+2] = FLOAT_TO_INT(red[i]);
- }
- break;
- case GL_BGRA:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_INT(blue[i]);
- dst[i*4+1] = FLOAT_TO_INT(green[i]);
- dst[i*4+2] = FLOAT_TO_INT(red[i]);
- dst[i*4+3] = FLOAT_TO_INT(alpha[i]);
- }
- break;
- case GL_ABGR_EXT:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_INT(alpha[i]);
- dst[i*4+1] = FLOAT_TO_INT(blue[i]);
- dst[i*4+2] = FLOAT_TO_INT(green[i]);
- dst[i*4+3] = FLOAT_TO_INT(red[i]);
- }
- break;
- default:
- gl_problem(ctx, "bad format in gl_pack_rgba_span\n");
- }
- if (packing->SwapBytes) {
- gl_swap4( (GLuint *) dst, n * comps );
- }
- }
- break;
- case GL_FLOAT:
- {
- GLfloat *dst = (GLfloat *) destination;
- switch (format) {
- case GL_RED:
- for (i=0;i<n;i++)
- dst[i] = red[i];
- break;
- case GL_GREEN:
- for (i=0;i<n;i++)
- dst[i] = green[i];
- break;
- case GL_BLUE:
- for (i=0;i<n;i++)
- dst[i] = blue[i];
- break;
- case GL_ALPHA:
- for (i=0;i<n;i++)
- dst[i] = alpha[i];
- break;
- case GL_LUMINANCE:
- for (i=0;i<n;i++)
- dst[i] = luminance[i];
- break;
- case GL_LUMINANCE_ALPHA:
- for (i=0;i<n;i++) {
- dst[i*2+0] = luminance[i];
- dst[i*2+1] = alpha[i];
- }
- break;
- case GL_RGB:
- for (i=0;i<n;i++) {
- dst[i*3+0] = red[i];
- dst[i*3+1] = green[i];
- dst[i*3+2] = blue[i];
- }
- break;
- case GL_RGBA:
- for (i=0;i<n;i++) {
- dst[i*4+0] = red[i];
- dst[i*4+1] = green[i];
- dst[i*4+2] = blue[i];
- dst[i*4+3] = alpha[i];
- }
- break;
- case GL_BGR:
- for (i=0;i<n;i++) {
- dst[i*3+0] = blue[i];
- dst[i*3+1] = green[i];
- dst[i*3+2] = red[i];
- }
- break;
- case GL_BGRA:
- for (i=0;i<n;i++) {
- dst[i*4+0] = blue[i];
- dst[i*4+1] = green[i];
- dst[i*4+2] = red[i];
- dst[i*4+3] = alpha[i];
- }
- break;
- case GL_ABGR_EXT:
- for (i=0;i<n;i++) {
- dst[i*4+0] = alpha[i];
- dst[i*4+1] = blue[i];
- dst[i*4+2] = green[i];
- dst[i*4+3] = red[i];
- }
- break;
- default:
- gl_problem(ctx, "bad format in gl_pack_rgba_span\n");
- }
- if (packing->SwapBytes) {
- gl_swap4( (GLuint *) dst, n * comps );
- }
- }
- break;
- case GL_UNSIGNED_BYTE_3_3_2:
- if (format == GL_RGB) {
- GLubyte *dst = (GLubyte *) destination;
- for (i=0;i<n;i++) {
- dst[i] = (((GLint) (red[i] * 7.0F)) << 5)
- | (((GLint) (green[i] * 7.0F)) << 2)
- | (((GLint) (blue[i] * 3.0F)) );
- }
- }
- break;
- case GL_UNSIGNED_BYTE_2_3_3_REV:
- if (format == GL_RGB) {
- GLubyte *dst = (GLubyte *) destination;
- for (i=0;i<n;i++) {
- dst[i] = (((GLint) (red[i] * 7.0F)) )
- | (((GLint) (green[i] * 7.0F)) << 3)
- | (((GLint) (blue[i] * 3.0F)) << 5);
- }
- }
- break;
- case GL_UNSIGNED_SHORT_5_6_5:
- if (format == GL_RGB) {
- GLushort *dst = (GLushort *) destination;
- for (i=0;i<n;i++) {
- dst[i] = (((GLint) (red[i] * 31.0F)) << 11)
- | (((GLint) (green[i] * 63.0F)) << 5)
- | (((GLint) (blue[i] * 31.0F)) );
- }
- }
- break;
- case GL_UNSIGNED_SHORT_5_6_5_REV:
- if (format == GL_RGB) {
- GLushort *dst = (GLushort *) destination;
- for (i=0;i<n;i++) {
- dst[i] = (((GLint) (red[i] * 31.0F)) )
- | (((GLint) (green[i] * 63.0F)) << 5)
- | (((GLint) (blue[i] * 31.0F)) << 11);
- }
- }
- break;
- case GL_UNSIGNED_SHORT_4_4_4_4:
- if (format == GL_RGB) {
- GLushort *dst = (GLushort *) destination;
- for (i=0;i<n;i++) {
- dst[i] = (((GLint) (red[i] * 15.0F)) << 12)
- | (((GLint) (green[i] * 15.0F)) << 8)
- | (((GLint) (blue[i] * 15.0F)) << 4)
- | (((GLint) (alpha[i] * 15.0F)) );
- }
- }
- break;
- case GL_UNSIGNED_SHORT_4_4_4_4_REV:
- if (format == GL_RGB) {
- GLushort *dst = (GLushort *) destination;
- for (i=0;i<n;i++) {
- dst[i] = (((GLint) (red[i] * 15.0F)) )
- | (((GLint) (green[i] * 15.0F)) << 4)
- | (((GLint) (blue[i] * 15.0F)) << 8)
- | (((GLint) (alpha[i] * 15.0F)) << 12);
- }
- }
- break;
- case GL_UNSIGNED_SHORT_5_5_5_1:
- if (format == GL_RGB) {
- GLushort *dst = (GLushort *) destination;
- for (i=0;i<n;i++) {
- dst[i] = (((GLint) (red[i] * 31.0F)) << 11)
- | (((GLint) (green[i] * 31.0F)) << 6)
- | (((GLint) (blue[i] * 31.0F)) << 1)
- | (((GLint) (alpha[i] * 1.0F)) );
- }
- }
- break;
- case GL_UNSIGNED_SHORT_1_5_5_5_REV:
- if (format == GL_RGB) {
- GLushort *dst = (GLushort *) destination;
- for (i=0;i<n;i++) {
- dst[i] = (((GLint) (red[i] * 31.0F)) )
- | (((GLint) (green[i] * 31.0F)) << 5)
- | (((GLint) (blue[i] * 31.0F)) << 10)
- | (((GLint) (alpha[i] * 1.0F)) << 15);
- }
- }
- break;
- case GL_UNSIGNED_INT_8_8_8_8:
- if (format == GL_RGBA) {
- GLuint *dst = (GLuint *) destination;
- for (i=0;i<n;i++) {
- dst[i] = (((GLuint) (red[i] * 255.0F)) << 24)
- | (((GLuint) (green[i] * 255.0F)) << 16)
- | (((GLuint) (blue[i] * 255.0F)) << 8)
- | (((GLuint) (alpha[i] * 255.0F)) );
- }
- }
- else if (format == GL_BGRA) {
- GLuint *dst = (GLuint *) destination;
- for (i=0;i<n;i++) {
- dst[i] = (((GLuint) (blue[i] * 255.0F)) << 24)
- | (((GLuint) (green[i] * 255.0F)) << 16)
- | (((GLuint) (red[i] * 255.0F)) << 8)
- | (((GLuint) (alpha[i] * 255.0F)) );
- }
- }
- else if (format == GL_ABGR_EXT) {
- GLuint *dst = (GLuint *) destination;
- for (i=0;i<n;i++) {
- dst[i] = (((GLuint) (alpha[i] * 255.0F)) << 24)
- | (((GLuint) (blue[i] * 255.0F)) << 16)
- | (((GLuint) (green[i] * 255.0F)) << 8)
- | (((GLuint) (red[i] * 255.0F)) );
- }
- }
- break;
- case GL_UNSIGNED_INT_8_8_8_8_REV:
- if (format == GL_RGBA) {
- GLuint *dst = (GLuint *) destination;
- for (i=0;i<n;i++) {
- dst[i] = (((GLuint) (red[i] * 255.0F)) )
- | (((GLuint) (green[i] * 255.0F)) << 8)
- | (((GLuint) (blue[i] * 255.0F)) << 16)
- | (((GLuint) (alpha[i] * 255.0F)) << 24);
- }
- }
- else if (format == GL_BGRA) {
- GLuint *dst = (GLuint *) destination;
- for (i=0;i<n;i++) {
- dst[i] = (((GLuint) (blue[i] * 255.0F)) )
- | (((GLuint) (green[i] * 255.0F)) << 8)
- | (((GLuint) (red[i] * 255.0F)) << 16)
- | (((GLuint) (alpha[i] * 255.0F)) << 24);
- }
- }
- else if (format == GL_ABGR_EXT) {
- GLuint *dst = (GLuint *) destination;
- for (i=0;i<n;i++) {
- dst[i] = (((GLuint) (alpha[i] * 255.0F)) )
- | (((GLuint) (blue[i] * 255.0F)) << 8)
- | (((GLuint) (green[i] * 255.0F)) << 16)
- | (((GLuint) (red[i] * 255.0F)) << 24);
- }
- }
- break;
- case GL_UNSIGNED_INT_10_10_10_2:
- if (format == GL_RGBA) {
- GLuint *dst = (GLuint *) destination;
- for (i=0;i<n;i++) {
- dst[i] = (((GLuint) (red[i] * 1023.0F)) << 22)
- | (((GLuint) (green[i] * 1023.0F)) << 12)
- | (((GLuint) (blue[i] * 1023.0F)) << 2)
- | (((GLuint) (alpha[i] * 3.0F)) );
- }
- }
- else if (format == GL_BGRA) {
- GLuint *dst = (GLuint *) destination;
- for (i=0;i<n;i++) {
- dst[i] = (((GLuint) (blue[i] * 1023.0F)) << 22)
- | (((GLuint) (green[i] * 1023.0F)) << 12)
- | (((GLuint) (red[i] * 1023.0F)) << 2)
- | (((GLuint) (alpha[i] * 3.0F)) );
- }
- }
- else if (format == GL_ABGR_EXT) {
- GLuint *dst = (GLuint *) destination;
- for (i=0;i<n;i++) {
- dst[i] = (((GLuint) (alpha[i] * 1023.0F)) << 22)
- | (((GLuint) (blue[i] * 1023.0F)) << 12)
- | (((GLuint) (green[i] * 1023.0F)) << 2)
- | (((GLuint) (red[i] * 3.0F)) );
- }
- }
- break;
- case GL_UNSIGNED_INT_2_10_10_10_REV:
- if (format == GL_RGBA) {
- GLuint *dst = (GLuint *) destination;
- for (i=0;i<n;i++) {
- dst[i] = (((GLuint) (red[i] * 1023.0F)) )
- | (((GLuint) (green[i] * 1023.0F)) << 10)
- | (((GLuint) (blue[i] * 1023.0F)) << 20)
- | (((GLuint) (alpha[i] * 3.0F)) << 30);
- }
- }
- else if (format == GL_BGRA) {
- GLuint *dst = (GLuint *) destination;
- for (i=0;i<n;i++) {
- dst[i] = (((GLuint) (blue[i] * 1023.0F)) )
- | (((GLuint) (green[i] * 1023.0F)) << 10)
- | (((GLuint) (red[i] * 1023.0F)) << 20)
- | (((GLuint) (alpha[i] * 3.0F)) << 30);
- }
- }
- else if (format == GL_ABGR_EXT) {
- GLuint *dst = (GLuint *) destination;
- for (i=0;i<n;i++) {
- dst[i] = (((GLuint) (alpha[i] * 1023.0F)) )
- | (((GLuint) (blue[i] * 1023.0F)) << 10)
- | (((GLuint) (green[i] * 1023.0F)) << 20)
- | (((GLuint) (red[i] * 3.0F)) << 30);
- }
- }
- break;
- default:
- gl_problem( ctx, "bad type in gl_pack_rgba_span" );
+ rgba[i][RCOMP] = CHAN_TO_FLOAT(srcRgba[i][RCOMP]);
+ rgba[i][GCOMP] = CHAN_TO_FLOAT(srcRgba[i][GCOMP]);
+ rgba[i][BCOMP] = CHAN_TO_FLOAT(srcRgba[i][BCOMP]);
+ rgba[i][ACOMP] = CHAN_TO_FLOAT(srcRgba[i][ACOMP]);
}
+ _mesa_pack_float_rgba_span(ctx, n, (const GLfloat (*)[4]) rgba,
+ dstFormat, dstType, dstAddr,
+ dstPacking, transferOps);
+ UNDEFARRAY(rgba); /* mac 32k limitation */
}
}
-
-/*
- * New (3.3) functions
- */
-
#define SWAP2BYTE(VALUE) \
{ \
GLubyte *bytes = (GLubyte *) &(VALUE); \
srcType == GL_SHORT ||
srcType == GL_UNSIGNED_INT ||
srcType == GL_INT ||
+ srcType == GL_HALF_FLOAT_NV ||
srcType == GL_FLOAT);
switch (srcType) {
for (i = 0; i < n; i++) {
GLfloat value = s[i];
SWAP4BYTE(value);
- indexes[i] = value;
+ indexes[i] = (GLuint) value;
}
}
else {
for (i = 0; i < n; i++)
- indexes[i] = s[i];
+ indexes[i] = (GLuint) s[i];
+ }
+ }
+ break;
+ case GL_HALF_FLOAT_NV:
+ {
+ GLuint i;
+ const GLhalfNV *s = (const GLhalfNV *) src;
+ if (unpack->SwapBytes) {
+ for (i = 0; i < n; i++) {
+ GLhalfNV value = s[i];
+ SWAP2BYTE(value);
+ indexes[i] = (GLuint) _mesa_half_to_float(value);
+ }
+ }
+ else {
+ for (i = 0; i < n; i++)
+ indexes[i] = (GLuint) _mesa_half_to_float(s[i]);
}
}
break;
default:
- gl_problem(NULL, "bad srcType in extract_uint_indexes");
+ _mesa_problem(NULL, "bad srcType in extract_uint_indexes");
return;
}
}
-
/*
* This function extracts floating point RGBA values from arbitrary
* image data. srcFormat and srcType are the format and type parameters
* Args: n - number of pixels
* rgba - output colors
* srcFormat - format of incoming data
- * srcType - datatype of incoming data
+ * srcType - data type of incoming data
* src - source data pointer
* swapBytes - perform byteswapping of incoming data?
*/
GLint stride;
GLint rComp, bComp, gComp, aComp;
- if (0)
- {
- int i;
- for (i = 0; i<n;i++) {
- rgba[i][0] = rgba[i][1] = rgba[i][2] = rgba[i][3] = 0;
- }
- return;
- }
-
-
ASSERT(srcFormat == GL_RED ||
srcFormat == GL_GREEN ||
srcFormat == GL_BLUE ||
srcType == GL_SHORT ||
srcType == GL_UNSIGNED_INT ||
srcType == GL_INT ||
+ srcType == GL_HALF_FLOAT_NV ||
srcType == GL_FLOAT ||
srcType == GL_UNSIGNED_BYTE_3_3_2 ||
srcType == GL_UNSIGNED_BYTE_2_3_3_REV ||
srcType == GL_UNSIGNED_INT_10_10_10_2 ||
srcType == GL_UNSIGNED_INT_2_10_10_10_REV);
+ rComp = gComp = bComp = aComp = -1;
+
switch (srcFormat) {
case GL_RED:
redIndex = 0;
alphaIndex = 0;
stride = 1;
break;
- case GL_LUMINANCE:
+ case GL_LUMINANCE:
redIndex = greenIndex = blueIndex = 0;
alphaIndex = -1;
stride = 1;
stride = 2;
break;
case GL_INTENSITY:
- redIndex = 0;
- greenIndex = blueIndex = alphaIndex = -1;
+ redIndex = greenIndex = blueIndex = alphaIndex = 0;
stride = 1;
break;
case GL_RGB:
stride = 4;
break;
default:
- gl_problem(NULL, "bad srcFormat in extract float data");
+ _mesa_problem(NULL, "bad srcFormat in extract float data");
return;
}
- assert(redIndex >= -1 && redIndex <= 4);
- assert(greenIndex >= -1 && greenIndex <= 4);
- assert(blueIndex >= -1 && blueIndex <= 4);
- assert(alphaIndex >= -1 && alphaIndex <= 4);
#define PROCESS(INDEX, CHANNEL, DEFAULT, TYPE, CONVERSION) \
if ((INDEX) < 0) { \
PROCESS(blueIndex, BCOMP, 0.0F, GLfloat, (GLfloat));
PROCESS(alphaIndex, ACOMP, 1.0F, GLfloat, (GLfloat));
break;
+ case GL_HALF_FLOAT_NV:
+ PROCESS(redIndex, RCOMP, 0.0F, GLhalfNV, _mesa_half_to_float);
+ PROCESS(greenIndex, GCOMP, 0.0F, GLhalfNV, _mesa_half_to_float);
+ PROCESS(blueIndex, BCOMP, 0.0F, GLhalfNV, _mesa_half_to_float);
+ PROCESS(alphaIndex, ACOMP, 1.0F, GLhalfNV, _mesa_half_to_float);
+ break;
case GL_UNSIGNED_BYTE_3_3_2:
{
const GLubyte *ubsrc = (const GLubyte *) src;
const GLushort *ussrc = (const GLushort *) src;
GLuint i;
for (i = 0; i < n; i ++) {
- GLushort p = ussrc[i];
- rgba[i][rComp] = ((p ) & 0x1f) * (1.0F / 31.0F);
- rgba[i][gComp] = ((p >> 5) & 0x1f) * (1.0F / 31.0F);
- rgba[i][bComp] = ((p >> 10) & 0x1f) * (1.0F / 31.0F);
- rgba[i][aComp] = ((p >> 15) ) * (1.0F / 1.0F);
+ GLushort p = ussrc[i];
+ rgba[i][rComp] = ((p ) & 0x1f) * (1.0F / 31.0F);
+ rgba[i][gComp] = ((p >> 5) & 0x1f) * (1.0F / 31.0F);
+ rgba[i][bComp] = ((p >> 10) & 0x1f) * (1.0F / 31.0F);
+ rgba[i][aComp] = ((p >> 15) ) * (1.0F / 1.0F);
+ }
+ }
+ break;
+ case GL_UNSIGNED_INT_8_8_8_8:
+ if (swapBytes) {
+ const GLuint *uisrc = (const GLuint *) src;
+ GLuint i;
+ for (i = 0; i < n; i ++) {
+ GLuint p = uisrc[i];
+ rgba[i][rComp] = UBYTE_TO_FLOAT((p ) & 0xff);
+ rgba[i][gComp] = UBYTE_TO_FLOAT((p >> 8) & 0xff);
+ rgba[i][bComp] = UBYTE_TO_FLOAT((p >> 16) & 0xff);
+ rgba[i][aComp] = UBYTE_TO_FLOAT((p >> 24) );
+ }
+ }
+ else {
+ const GLuint *uisrc = (const GLuint *) src;
+ GLuint i;
+ for (i = 0; i < n; i ++) {
+ GLuint p = uisrc[i];
+ rgba[i][rComp] = UBYTE_TO_FLOAT((p >> 24) );
+ rgba[i][gComp] = UBYTE_TO_FLOAT((p >> 16) & 0xff);
+ rgba[i][bComp] = UBYTE_TO_FLOAT((p >> 8) & 0xff);
+ rgba[i][aComp] = UBYTE_TO_FLOAT((p ) & 0xff);
}
}
break;
- case GL_UNSIGNED_INT_8_8_8_8:
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
if (swapBytes) {
const GLuint *uisrc = (const GLuint *) src;
GLuint i;
for (i = 0; i < n; i ++) {
GLuint p = uisrc[i];
- rgba[i][rComp] = UBYTE_COLOR_TO_FLOAT_COLOR((p ) & 0xff);
- rgba[i][gComp] = UBYTE_COLOR_TO_FLOAT_COLOR((p >> 8) & 0xff);
- rgba[i][bComp] = UBYTE_COLOR_TO_FLOAT_COLOR((p >> 16) & 0xff);
- rgba[i][aComp] = UBYTE_COLOR_TO_FLOAT_COLOR((p >> 24) );
+ rgba[i][rComp] = UBYTE_TO_FLOAT((p >> 24) );
+ rgba[i][gComp] = UBYTE_TO_FLOAT((p >> 16) & 0xff);
+ rgba[i][bComp] = UBYTE_TO_FLOAT((p >> 8) & 0xff);
+ rgba[i][aComp] = UBYTE_TO_FLOAT((p ) & 0xff);
}
}
else {
GLuint i;
for (i = 0; i < n; i ++) {
GLuint p = uisrc[i];
- rgba[i][rComp] = UBYTE_COLOR_TO_FLOAT_COLOR((p >> 24) );
- rgba[i][gComp] = UBYTE_COLOR_TO_FLOAT_COLOR((p >> 16) & 0xff);
- rgba[i][bComp] = UBYTE_COLOR_TO_FLOAT_COLOR((p >> 8) & 0xff);
- rgba[i][aComp] = UBYTE_COLOR_TO_FLOAT_COLOR((p ) & 0xff);
+ rgba[i][rComp] = UBYTE_TO_FLOAT((p ) & 0xff);
+ rgba[i][gComp] = UBYTE_TO_FLOAT((p >> 8) & 0xff);
+ rgba[i][bComp] = UBYTE_TO_FLOAT((p >> 16) & 0xff);
+ rgba[i][aComp] = UBYTE_TO_FLOAT((p >> 24) );
}
}
break;
- case GL_UNSIGNED_INT_8_8_8_8_REV:
+ case GL_UNSIGNED_INT_10_10_10_2:
if (swapBytes) {
const GLuint *uisrc = (const GLuint *) src;
GLuint i;
for (i = 0; i < n; i ++) {
GLuint p = uisrc[i];
- rgba[i][rComp] = UBYTE_COLOR_TO_FLOAT_COLOR((p >> 24) );
- rgba[i][gComp] = UBYTE_COLOR_TO_FLOAT_COLOR((p >> 16) & 0xff);
- rgba[i][bComp] = UBYTE_COLOR_TO_FLOAT_COLOR((p >> 8) & 0xff);
- rgba[i][aComp] = UBYTE_COLOR_TO_FLOAT_COLOR((p ) & 0xff);
+ SWAP4BYTE(p);
+ rgba[i][rComp] = ((p >> 22) ) * (1.0F / 1023.0F);
+ rgba[i][gComp] = ((p >> 12) & 0x3ff) * (1.0F / 1023.0F);
+ rgba[i][bComp] = ((p >> 2) & 0x3ff) * (1.0F / 1023.0F);
+ rgba[i][aComp] = ((p ) & 0x3 ) * (1.0F / 3.0F);
}
}
else {
GLuint i;
for (i = 0; i < n; i ++) {
GLuint p = uisrc[i];
- rgba[i][rComp] = UBYTE_COLOR_TO_FLOAT_COLOR((p ) & 0xff);
- rgba[i][gComp] = UBYTE_COLOR_TO_FLOAT_COLOR((p >> 8) & 0xff);
- rgba[i][bComp] = UBYTE_COLOR_TO_FLOAT_COLOR((p >> 16) & 0xff);
- rgba[i][aComp] = UBYTE_COLOR_TO_FLOAT_COLOR((p >> 24) );
+ rgba[i][rComp] = ((p >> 22) ) * (1.0F / 1023.0F);
+ rgba[i][gComp] = ((p >> 12) & 0x3ff) * (1.0F / 1023.0F);
+ rgba[i][bComp] = ((p >> 2) & 0x3ff) * (1.0F / 1023.0F);
+ rgba[i][aComp] = ((p ) & 0x3 ) * (1.0F / 3.0F);
}
}
break;
- case GL_UNSIGNED_INT_10_10_10_2:
+ case GL_UNSIGNED_INT_2_10_10_10_REV:
if (swapBytes) {
const GLuint *uisrc = (const GLuint *) src;
GLuint i;
for (i = 0; i < n; i ++) {
GLuint p = uisrc[i];
SWAP4BYTE(p);
- rgba[i][rComp] = ((p ) & 0x3 ) * (1.0F / 3.0F);
- rgba[i][gComp] = ((p >> 2) & 0x3ff) * (1.0F / 1023.0F);
- rgba[i][bComp] = ((p >> 12) & 0x3ff) * (1.0F / 1023.0F);
- rgba[i][aComp] = ((p >> 22) ) * (1.0F / 1023.0F);
+ rgba[i][rComp] = ((p ) & 0x3ff) * (1.0F / 1023.0F);
+ rgba[i][gComp] = ((p >> 10) & 0x3ff) * (1.0F / 1023.0F);
+ rgba[i][bComp] = ((p >> 20) & 0x3ff) * (1.0F / 1023.0F);
+ rgba[i][aComp] = ((p >> 30) ) * (1.0F / 3.0F);
}
}
else {
GLuint i;
for (i = 0; i < n; i ++) {
GLuint p = uisrc[i];
- rgba[i][rComp] = ((p ) & 0x3 ) * (1.0F / 3.0F);
- rgba[i][gComp] = ((p >> 2) & 0x3ff) * (1.0F / 1023.0F);
- rgba[i][bComp] = ((p >> 12) & 0x3ff) * (1.0F / 1023.0F);
- rgba[i][aComp] = ((p >> 22) ) * (1.0F / 1023.0F);
+ rgba[i][rComp] = ((p ) & 0x3ff) * (1.0F / 1023.0F);
+ rgba[i][gComp] = ((p >> 10) & 0x3ff) * (1.0F / 1023.0F);
+ rgba[i][bComp] = ((p >> 20) & 0x3ff) * (1.0F / 1023.0F);
+ rgba[i][aComp] = ((p >> 30) ) * (1.0F / 3.0F);
+ }
+ }
+ break;
+ default:
+ _mesa_problem(NULL, "bad srcType in extract float data");
+ break;
+ }
+}
+
+
+/*
+ * Unpack a row of color image data from a client buffer according to
+ * the pixel unpacking parameters.
+ * Return GLubyte values in the specified dest image format.
+ * This is (or will be) used by glDrawPixels and glTexImage?D().
+ * \param ctx - the context
+ * n - number of pixels in the span
+ * dstFormat - format of destination color array
+ * dest - the destination color array
+ * srcFormat - source image format
+ * srcType - source image data type
+ * source - source image pointer
+ * srcPacking - pixel unpacking parameters
+ * transferOps - bitmask of IMAGE_*_BIT values of operations to apply
+ *
+ * XXX perhaps expand this to process whole images someday.
+ */
+void
+_mesa_unpack_chan_color_span( GLcontext *ctx,
+ GLuint n, GLenum dstFormat, GLchan dest[],
+ GLenum srcFormat, GLenum srcType,
+ const GLvoid *source,
+ const struct gl_pixelstore_attrib *srcPacking,
+ GLuint transferOps )
+{
+ ASSERT(dstFormat == GL_ALPHA ||
+ dstFormat == GL_LUMINANCE ||
+ dstFormat == GL_LUMINANCE_ALPHA ||
+ dstFormat == GL_INTENSITY ||
+ dstFormat == GL_RGB ||
+ dstFormat == GL_RGBA ||
+ dstFormat == GL_COLOR_INDEX);
+
+ ASSERT(srcFormat == GL_RED ||
+ srcFormat == GL_GREEN ||
+ srcFormat == GL_BLUE ||
+ srcFormat == GL_ALPHA ||
+ srcFormat == GL_LUMINANCE ||
+ srcFormat == GL_LUMINANCE_ALPHA ||
+ srcFormat == GL_INTENSITY ||
+ srcFormat == GL_RGB ||
+ srcFormat == GL_BGR ||
+ srcFormat == GL_RGBA ||
+ srcFormat == GL_BGRA ||
+ srcFormat == GL_ABGR_EXT ||
+ srcFormat == GL_COLOR_INDEX);
+
+ ASSERT(srcType == GL_BITMAP ||
+ srcType == GL_UNSIGNED_BYTE ||
+ srcType == GL_BYTE ||
+ srcType == GL_UNSIGNED_SHORT ||
+ srcType == GL_SHORT ||
+ srcType == GL_UNSIGNED_INT ||
+ srcType == GL_INT ||
+ srcType == GL_HALF_FLOAT_NV ||
+ srcType == GL_FLOAT ||
+ srcType == GL_UNSIGNED_BYTE_3_3_2 ||
+ srcType == GL_UNSIGNED_BYTE_2_3_3_REV ||
+ srcType == GL_UNSIGNED_SHORT_5_6_5 ||
+ srcType == GL_UNSIGNED_SHORT_5_6_5_REV ||
+ srcType == GL_UNSIGNED_SHORT_4_4_4_4 ||
+ srcType == GL_UNSIGNED_SHORT_4_4_4_4_REV ||
+ srcType == GL_UNSIGNED_SHORT_5_5_5_1 ||
+ srcType == GL_UNSIGNED_SHORT_1_5_5_5_REV ||
+ srcType == GL_UNSIGNED_INT_8_8_8_8 ||
+ srcType == GL_UNSIGNED_INT_8_8_8_8_REV ||
+ srcType == GL_UNSIGNED_INT_10_10_10_2 ||
+ srcType == GL_UNSIGNED_INT_2_10_10_10_REV);
+
+ /* Try simple cases first */
+ if (transferOps == 0 ){
+ if (srcType == CHAN_TYPE) {
+ if (dstFormat == GL_RGBA) {
+ if (srcFormat == GL_RGBA) {
+ MEMCPY( dest, source, n * 4 * sizeof(GLchan) );
+ return;
+ }
+ else if (srcFormat == GL_RGB) {
+ GLuint i;
+ const GLchan *src = (const GLchan *) source;
+ GLchan *dst = dest;
+ for (i = 0; i < n; i++) {
+ dst[0] = src[0];
+ dst[1] = src[1];
+ dst[2] = src[2];
+ dst[3] = CHAN_MAX;
+ src += 3;
+ dst += 4;
+ }
+ return;
+ }
+ }
+ else if (dstFormat == GL_RGB) {
+ if (srcFormat == GL_RGB) {
+ MEMCPY( dest, source, n * 3 * sizeof(GLchan) );
+ return;
+ }
+ else if (srcFormat == GL_RGBA) {
+ GLuint i;
+ const GLchan *src = (const GLchan *) source;
+ GLchan *dst = dest;
+ for (i = 0; i < n; i++) {
+ dst[0] = src[0];
+ dst[1] = src[1];
+ dst[2] = src[2];
+ src += 4;
+ dst += 3;
+ }
+ return;
+ }
+ }
+ else if (dstFormat == srcFormat) {
+ GLint comps = _mesa_components_in_format(srcFormat);
+ assert(comps > 0);
+ MEMCPY( dest, source, n * comps * sizeof(GLchan) );
+ return;
+ }
+ }
+ /*
+ * Common situation, loading 8bit RGBA/RGB source images
+ * into 16/32 bit destination. (OSMesa16/32)
+ */
+ else if (srcType == GL_UNSIGNED_BYTE) {
+ if (dstFormat == GL_RGBA) {
+ if (srcFormat == GL_RGB) {
+ GLuint i;
+ const GLubyte *src = (const GLubyte *) source;
+ GLchan *dst = dest;
+ for (i = 0; i < n; i++) {
+ dst[0] = UBYTE_TO_CHAN(src[0]);
+ dst[1] = UBYTE_TO_CHAN(src[1]);
+ dst[2] = UBYTE_TO_CHAN(src[2]);
+ dst[3] = CHAN_MAX;
+ src += 3;
+ dst += 4;
+ }
+ return;
+ }
+ else if (srcFormat == GL_RGBA) {
+ GLuint i;
+ const GLubyte *src = (const GLubyte *) source;
+ GLchan *dst = dest;
+ for (i = 0; i < n; i++) {
+ dst[0] = UBYTE_TO_CHAN(src[0]);
+ dst[1] = UBYTE_TO_CHAN(src[1]);
+ dst[2] = UBYTE_TO_CHAN(src[2]);
+ dst[3] = UBYTE_TO_CHAN(src[3]);
+ src += 4;
+ dst += 4;
+ }
+ return;
+ }
+ }
+ else if (dstFormat == GL_RGB) {
+ if (srcFormat == GL_RGB) {
+ GLuint i;
+ const GLubyte *src = (const GLubyte *) source;
+ GLchan *dst = dest;
+ for (i = 0; i < n; i++) {
+ dst[0] = UBYTE_TO_CHAN(src[0]);
+ dst[1] = UBYTE_TO_CHAN(src[1]);
+ dst[2] = UBYTE_TO_CHAN(src[2]);
+ src += 3;
+ dst += 3;
+ }
+ return;
+ }
+ else if (srcFormat == GL_RGBA) {
+ GLuint i;
+ const GLubyte *src = (const GLubyte *) source;
+ GLchan *dst = dest;
+ for (i = 0; i < n; i++) {
+ dst[0] = UBYTE_TO_CHAN(src[0]);
+ dst[1] = UBYTE_TO_CHAN(src[1]);
+ dst[2] = UBYTE_TO_CHAN(src[2]);
+ src += 4;
+ dst += 3;
+ }
+ return;
+ }
+ }
+ }
+ }
+
+
+ /* general solution begins here */
+ {
+ GLint dstComponents;
+ GLint dstRedIndex, dstGreenIndex, dstBlueIndex, dstAlphaIndex;
+ GLint dstLuminanceIndex, dstIntensityIndex;
+ DEFMARRAY(GLfloat, rgba, MAX_WIDTH, 4); /* mac 32k limitation */
+ CHECKARRAY(rgba, return); /* mac 32k limitation */
+
+ dstComponents = _mesa_components_in_format( dstFormat );
+ /* source & dest image formats should have been error checked by now */
+ assert(dstComponents > 0);
+
+ /*
+ * Extract image data and convert to RGBA floats
+ */
+ assert(n <= MAX_WIDTH);
+ if (srcFormat == GL_COLOR_INDEX) {
+ GLuint indexes[MAX_WIDTH];
+ extract_uint_indexes(n, indexes, srcFormat, srcType, source,
+ srcPacking);
+
+ if (dstFormat == GL_COLOR_INDEX
+ && (transferOps & IMAGE_MAP_COLOR_BIT)) {
+ _mesa_map_ci(ctx, n, indexes);
+ }
+ if (transferOps & IMAGE_SHIFT_OFFSET_BIT) {
+ _mesa_shift_and_offset_ci(ctx, n, indexes);
+ }
+
+ if (dstFormat == GL_COLOR_INDEX) {
+ /* convert to GLchan and return */
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ dest[i] = (GLchan) (indexes[i] & 0xff);
}
+ UNDEFARRAY(rgba); /* mac 32k limitation */
+ return;
+ }
+ else {
+ /* Convert indexes to RGBA */
+ _mesa_map_ci_to_rgba(ctx, n, indexes, rgba);
+ }
+ }
+ else {
+ extract_float_rgba(n, rgba, srcFormat, srcType, source,
+ srcPacking->SwapBytes);
+
+ /* scale and bias colors */
+ if (transferOps & IMAGE_SCALE_BIAS_BIT) {
+ _mesa_scale_and_bias_rgba(ctx, n, rgba,
+ ctx->Pixel.RedScale, ctx->Pixel.GreenScale,
+ ctx->Pixel.BlueScale, ctx->Pixel.AlphaScale,
+ ctx->Pixel.RedBias, ctx->Pixel.GreenBias,
+ ctx->Pixel.BlueBias, ctx->Pixel.AlphaBias);
+ }
+ /* color map lookup */
+ if (transferOps & IMAGE_MAP_COLOR_BIT) {
+ _mesa_map_rgba(ctx, n, rgba);
+ }
+ }
+
+ if (transferOps) {
+ /* GL_COLOR_TABLE lookup */
+ if (transferOps & IMAGE_COLOR_TABLE_BIT) {
+ _mesa_lookup_rgba(&ctx->ColorTable, n, rgba);
+ }
+ /* convolution */
+ if (transferOps & IMAGE_CONVOLUTION_BIT) {
+ /* this has to be done in the calling code */
+ }
+ /* GL_POST_CONVOLUTION_RED/GREEN/BLUE/ALPHA_SCALE/BIAS */
+ if (transferOps & IMAGE_POST_CONVOLUTION_SCALE_BIAS) {
+ _mesa_scale_and_bias_rgba(ctx, n, rgba,
+ ctx->Pixel.PostConvolutionScale[RCOMP],
+ ctx->Pixel.PostConvolutionScale[GCOMP],
+ ctx->Pixel.PostConvolutionScale[BCOMP],
+ ctx->Pixel.PostConvolutionScale[ACOMP],
+ ctx->Pixel.PostConvolutionBias[RCOMP],
+ ctx->Pixel.PostConvolutionBias[GCOMP],
+ ctx->Pixel.PostConvolutionBias[BCOMP],
+ ctx->Pixel.PostConvolutionBias[ACOMP]);
+ }
+ /* GL_POST_CONVOLUTION_COLOR_TABLE lookup */
+ if (transferOps & IMAGE_POST_CONVOLUTION_COLOR_TABLE_BIT) {
+ _mesa_lookup_rgba(&ctx->PostConvolutionColorTable, n, rgba);
+ }
+ /* color matrix transform */
+ if (transferOps & IMAGE_COLOR_MATRIX_BIT) {
+ _mesa_transform_rgba(ctx, n, rgba);
+ }
+ /* GL_POST_COLOR_MATRIX_COLOR_TABLE lookup */
+ if (transferOps & IMAGE_POST_COLOR_MATRIX_COLOR_TABLE_BIT) {
+ _mesa_lookup_rgba(&ctx->PostColorMatrixColorTable, n, rgba);
+ }
+ /* update histogram count */
+ if (transferOps & IMAGE_HISTOGRAM_BIT) {
+ _mesa_update_histogram(ctx, n, (CONST GLfloat (*)[4]) rgba);
+ }
+ /* min/max here */
+ if (transferOps & IMAGE_MIN_MAX_BIT) {
+ _mesa_update_minmax(ctx, n, (CONST GLfloat (*)[4]) rgba);
+ }
+ }
+
+ /* clamp to [0,1] */
+#if CHAN_TYPE != GL_FLOAT
+ {
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ rgba[i][RCOMP] = CLAMP(rgba[i][RCOMP], 0.0F, 1.0F);
+ rgba[i][GCOMP] = CLAMP(rgba[i][GCOMP], 0.0F, 1.0F);
+ rgba[i][BCOMP] = CLAMP(rgba[i][BCOMP], 0.0F, 1.0F);
+ rgba[i][ACOMP] = CLAMP(rgba[i][ACOMP], 0.0F, 1.0F);
+ }
+ }
+#endif
+
+ /* Now determine which color channels we need to produce.
+ * And determine the dest index (offset) within each color tuple.
+ */
+ switch (dstFormat) {
+ case GL_ALPHA:
+ dstAlphaIndex = 0;
+ dstRedIndex = dstGreenIndex = dstBlueIndex = -1;
+ dstLuminanceIndex = dstIntensityIndex = -1;
+ break;
+ case GL_LUMINANCE:
+ dstLuminanceIndex = 0;
+ dstRedIndex = dstGreenIndex = dstBlueIndex = dstAlphaIndex = -1;
+ dstIntensityIndex = -1;
+ break;
+ case GL_LUMINANCE_ALPHA:
+ dstLuminanceIndex = 0;
+ dstAlphaIndex = 1;
+ dstRedIndex = dstGreenIndex = dstBlueIndex = -1;
+ dstIntensityIndex = -1;
+ break;
+ case GL_INTENSITY:
+ dstIntensityIndex = 0;
+ dstRedIndex = dstGreenIndex = dstBlueIndex = dstAlphaIndex = -1;
+ dstLuminanceIndex = -1;
+ break;
+ case GL_RGB:
+ dstRedIndex = 0;
+ dstGreenIndex = 1;
+ dstBlueIndex = 2;
+ dstAlphaIndex = dstLuminanceIndex = dstIntensityIndex = -1;
+ break;
+ case GL_RGBA:
+ dstRedIndex = 0;
+ dstGreenIndex = 1;
+ dstBlueIndex = 2;
+ dstAlphaIndex = 3;
+ dstLuminanceIndex = dstIntensityIndex = -1;
+ break;
+ default:
+ _mesa_problem(ctx, "bad dstFormat in _mesa_unpack_chan_span()");
+ UNDEFARRAY(rgba); /* mac 32k limitation */
+ return;
+ }
+
+
+ /* Now return the GLchan data in the requested dstFormat */
+
+ if (dstRedIndex >= 0) {
+ GLchan *dst = dest;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ CLAMPED_FLOAT_TO_CHAN(dst[dstRedIndex], rgba[i][RCOMP]);
+ dst += dstComponents;
+ }
+ }
+
+ if (dstGreenIndex >= 0) {
+ GLchan *dst = dest;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ CLAMPED_FLOAT_TO_CHAN(dst[dstGreenIndex], rgba[i][GCOMP]);
+ dst += dstComponents;
+ }
+ }
+
+ if (dstBlueIndex >= 0) {
+ GLchan *dst = dest;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ CLAMPED_FLOAT_TO_CHAN(dst[dstBlueIndex], rgba[i][BCOMP]);
+ dst += dstComponents;
+ }
+ }
+
+ if (dstAlphaIndex >= 0) {
+ GLchan *dst = dest;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ CLAMPED_FLOAT_TO_CHAN(dst[dstAlphaIndex], rgba[i][ACOMP]);
+ dst += dstComponents;
}
- break;
- case GL_UNSIGNED_INT_2_10_10_10_REV:
- if (swapBytes) {
- const GLuint *uisrc = (const GLuint *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLuint p = uisrc[i];
- SWAP4BYTE(p);
- rgba[i][rComp] = ((p ) & 0x3ff) * (1.0F / 1023.0F);
- rgba[i][gComp] = ((p >> 10) & 0x3ff) * (1.0F / 1023.0F);
- rgba[i][bComp] = ((p >> 20) & 0x3ff) * (1.0F / 1023.0F);
- rgba[i][aComp] = ((p >> 30) ) * (1.0F / 3.0F);
- }
+ }
+
+ if (dstIntensityIndex >= 0) {
+ GLchan *dst = dest;
+ GLuint i;
+ assert(dstIntensityIndex == 0);
+ assert(dstComponents == 1);
+ for (i = 0; i < n; i++) {
+ /* Intensity comes from red channel */
+ CLAMPED_FLOAT_TO_CHAN(dst[i], rgba[i][RCOMP]);
}
- else {
- const GLuint *uisrc = (const GLuint *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLuint p = uisrc[i];
- rgba[i][rComp] = ((p ) & 0x3ff) * (1.0F / 1023.0F);
- rgba[i][gComp] = ((p >> 10) & 0x3ff) * (1.0F / 1023.0F);
- rgba[i][bComp] = ((p >> 20) & 0x3ff) * (1.0F / 1023.0F);
- rgba[i][aComp] = ((p >> 30) ) * (1.0F / 3.0F);
- }
+ }
+
+ if (dstLuminanceIndex >= 0) {
+ GLchan *dst = dest;
+ GLuint i;
+ assert(dstLuminanceIndex == 0);
+ for (i = 0; i < n; i++) {
+ /* Luminance comes from red channel */
+ CLAMPED_FLOAT_TO_CHAN(dst[0], rgba[i][RCOMP]);
+ dst += dstComponents;
}
- break;
- default:
- gl_problem(NULL, "bad srcType in extract float data");
- break;
+ }
+ UNDEFARRAY(rgba); /* mac 32k limitation */
}
}
-
-/*
- * Unpack a row of color image data from a client buffer according to
- * the pixel unpacking parameters. Apply any enabled pixel transfer
- * ops (PixelMap, scale/bias) if the applyTransferOps flag is enabled.
- * Return GLubyte values in the specified dest image format.
- * This is (or will be) used by glDrawPixels and glTexImage?D().
- * Input: ctx - the context
- * n - number of pixels in the span
- * dstFormat - format of destination color array
- * dest - the destination color array
- * srcFormat - source image format
- * srcType - source image datatype
- * source - source image pointer
- * unpacking - pixel unpacking parameters
- * applyTransferOps - apply scale/bias/lookup-table ops?
- *
- * XXX perhaps expand this to process whole images someday.
- */
void
-_mesa_unpack_ubyte_color_span( const GLcontext *ctx,
- GLuint n, GLenum dstFormat, GLubyte dest[],
+_mesa_unpack_float_color_span( GLcontext *ctx,
+ GLuint n, GLenum dstFormat, GLfloat dest[],
GLenum srcFormat, GLenum srcType,
const GLvoid *source,
- const struct gl_pixelstore_attrib *unpacking,
- GLboolean applyTransferOps )
+ const struct gl_pixelstore_attrib *srcPacking,
+ GLuint transferOps, GLboolean clamp )
{
ASSERT(dstFormat == GL_ALPHA ||
- dstFormat == GL_LUMINANCE ||
+ dstFormat == GL_LUMINANCE ||
dstFormat == GL_LUMINANCE_ALPHA ||
dstFormat == GL_INTENSITY ||
dstFormat == GL_RGB ||
srcType == GL_SHORT ||
srcType == GL_UNSIGNED_INT ||
srcType == GL_INT ||
+ srcType == GL_HALF_FLOAT_NV ||
srcType == GL_FLOAT ||
srcType == GL_UNSIGNED_BYTE_3_3_2 ||
srcType == GL_UNSIGNED_BYTE_2_3_3_REV ||
srcType == GL_UNSIGNED_INT_10_10_10_2 ||
srcType == GL_UNSIGNED_INT_2_10_10_10_REV);
- /* this is intended for RGBA mode */
- ASSERT(ctx->Visual->RGBAflag);
-
- applyTransferOps &= (ctx->Pixel.ScaleOrBiasRGBA ||
- ctx->Pixel.MapColorFlag);
-
- /* Try simple cases first */
- if (!applyTransferOps && srcType == GL_UNSIGNED_BYTE) {
- if (dstFormat == GL_RGBA) {
- if (srcFormat == GL_RGBA) {
- MEMCPY( dest, source, n * 4 * sizeof(GLubyte) );
- return;
- }
- else if (srcFormat == GL_RGB) {
- GLuint i;
- const GLubyte *src = (const GLubyte *) source;
- GLubyte *dst = dest;
- for (i = 0; i < n; i++) {
- dst[0] = src[0];
- dst[1] = src[1];
- dst[2] = src[2];
- dst[3] = 255;
- src += 3;
- dst += 4;
- }
- return;
- }
- }
- else if (dstFormat == GL_RGB) {
- if (srcFormat == GL_RGB) {
- MEMCPY( dest, source, n * 3 * sizeof(GLubyte) );
- return;
- }
- else if (srcFormat == GL_RGBA) {
- GLuint i;
- const GLubyte *src = (const GLubyte *) source;
- GLubyte *dst = dest;
- for (i = 0; i < n; i++) {
- dst[0] = src[0];
- dst[1] = src[1];
- dst[2] = src[2];
- src += 4;
- dst += 3;
- }
- return;
- }
- }
- else if (dstFormat == srcFormat) {
- GLint comps = gl_components_in_format(srcFormat);
- assert(comps > 0);
- MEMCPY( dest, source, n * comps * sizeof(GLubyte) );
- return;
- }
- }
-
-
+ /* general solution, no special cases, yet */
{
- /* general solution */
- GLfloat rgba[MAX_WIDTH][4];
GLint dstComponents;
GLint dstRedIndex, dstGreenIndex, dstBlueIndex, dstAlphaIndex;
GLint dstLuminanceIndex, dstIntensityIndex;
+ DEFMARRAY(GLfloat, rgba, MAX_WIDTH, 4); /* mac 32k limitation */
+ CHECKARRAY(rgba, return); /* mac 32k limitation */
- dstComponents = gl_components_in_format( dstFormat );
+ dstComponents = _mesa_components_in_format( dstFormat );
/* source & dest image formats should have been error checked by now */
assert(dstComponents > 0);
if (srcFormat == GL_COLOR_INDEX) {
GLuint indexes[MAX_WIDTH];
extract_uint_indexes(n, indexes, srcFormat, srcType, source,
- unpacking);
+ srcPacking);
- /* shift and offset indexes */
- gl_shift_and_offset_ci(ctx, n, indexes);
+ if (dstFormat == GL_COLOR_INDEX
+ && (transferOps & IMAGE_MAP_COLOR_BIT)) {
+ _mesa_map_ci(ctx, n, indexes);
+ }
+ if (transferOps & IMAGE_SHIFT_OFFSET_BIT) {
+ _mesa_shift_and_offset_ci(ctx, n, indexes);
+ }
if (dstFormat == GL_COLOR_INDEX) {
- if (applyTransferOps) {
- if (ctx->Pixel.MapColorFlag) {
- /* Apply lookup table */
- gl_map_ci(ctx, n, indexes);
- }
-
- if (ctx->Pixel.IndexShift || ctx->Pixel.IndexOffset) {
-
- }
- }
-
- /* convert to GLubyte and return */
- {
- GLuint i;
- for (i = 0; i < n; i++) {
- dest[i] = (GLubyte) (indexes[i] & 0xff);
- }
+ /* convert to GLchan and return */
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ dest[i] = (GLchan) (indexes[i] & 0xff);
}
+ UNDEFARRAY(rgba); /* mac 32k limitation */
+ return;
}
else {
/* Convert indexes to RGBA */
- gl_map_ci_to_rgba_float(ctx, n, indexes, rgba);
+ _mesa_map_ci_to_rgba(ctx, n, indexes, rgba);
}
}
else {
extract_float_rgba(n, rgba, srcFormat, srcType, source,
- unpacking->SwapBytes);
-
- if (applyTransferOps) {
- /* scale and bias colors */
- gl_scale_and_bias_rgba_float(ctx, n, rgba);
-
- /* color table lookup */
- if (ctx->Pixel.MapColorFlag) {
- gl_map_rgba_float(ctx, n, rgba);
- }
+ srcPacking->SwapBytes);
+
+ /* scale and bias colors */
+ if (transferOps & IMAGE_SCALE_BIAS_BIT) {
+ _mesa_scale_and_bias_rgba(ctx, n, rgba,
+ ctx->Pixel.RedScale, ctx->Pixel.GreenScale,
+ ctx->Pixel.BlueScale, ctx->Pixel.AlphaScale,
+ ctx->Pixel.RedBias, ctx->Pixel.GreenBias,
+ ctx->Pixel.BlueBias, ctx->Pixel.AlphaBias);
+ }
+ /* color map lookup */
+ if (transferOps & IMAGE_MAP_COLOR_BIT) {
+ _mesa_map_rgba(ctx, n, rgba);
}
}
-
- /*
- * XXX This is where more color table lookups, convolution,
- * histograms, minmax, color matrix, etc would take place if
- * implemented.
- * See figure 3.7 in the OpenGL 1.2 specification for more info.
- */
-
+ if (transferOps) {
+ /* GL_COLOR_TABLE lookup */
+ if (transferOps & IMAGE_COLOR_TABLE_BIT) {
+ _mesa_lookup_rgba(&ctx->ColorTable, n, rgba);
+ }
+ /* convolution */
+ if (transferOps & IMAGE_CONVOLUTION_BIT) {
+ /* XXX to do */
+ }
+ /* GL_POST_CONVOLUTION_RED/GREEN/BLUE/ALPHA_SCALE/BIAS */
+ if (transferOps & IMAGE_POST_CONVOLUTION_SCALE_BIAS) {
+ _mesa_scale_and_bias_rgba(ctx, n, rgba,
+ ctx->Pixel.PostConvolutionScale[RCOMP],
+ ctx->Pixel.PostConvolutionScale[GCOMP],
+ ctx->Pixel.PostConvolutionScale[BCOMP],
+ ctx->Pixel.PostConvolutionScale[ACOMP],
+ ctx->Pixel.PostConvolutionBias[RCOMP],
+ ctx->Pixel.PostConvolutionBias[GCOMP],
+ ctx->Pixel.PostConvolutionBias[BCOMP],
+ ctx->Pixel.PostConvolutionBias[ACOMP]);
+ }
+ /* GL_POST_CONVOLUTION_COLOR_TABLE lookup */
+ if (transferOps & IMAGE_POST_CONVOLUTION_COLOR_TABLE_BIT) {
+ _mesa_lookup_rgba(&ctx->PostConvolutionColorTable, n, rgba);
+ }
+ /* color matrix transform */
+ if (transferOps & IMAGE_COLOR_MATRIX_BIT) {
+ _mesa_transform_rgba(ctx, n, rgba);
+ }
+ /* GL_POST_COLOR_MATRIX_COLOR_TABLE lookup */
+ if (transferOps & IMAGE_POST_COLOR_MATRIX_COLOR_TABLE_BIT) {
+ _mesa_lookup_rgba(&ctx->PostColorMatrixColorTable, n, rgba);
+ }
+ /* update histogram count */
+ if (transferOps & IMAGE_HISTOGRAM_BIT) {
+ _mesa_update_histogram(ctx, n, (CONST GLfloat (*)[4]) rgba);
+ }
+ /* min/max here */
+ if (transferOps & IMAGE_MIN_MAX_BIT) {
+ _mesa_update_minmax(ctx, n, (CONST GLfloat (*)[4]) rgba);
+ }
+ }
/* clamp to [0,1] */
- {
+#if CHAN_TYPE != GL_FLOAT
+ if (clamp) {
GLuint i;
for (i = 0; i < n; i++) {
rgba[i][RCOMP] = CLAMP(rgba[i][RCOMP], 0.0F, 1.0F);
rgba[i][ACOMP] = CLAMP(rgba[i][ACOMP], 0.0F, 1.0F);
}
}
+#endif
/* Now determine which color channels we need to produce.
* And determine the dest index (offset) within each color tuple.
dstRedIndex = dstGreenIndex = dstBlueIndex = -1;
dstLuminanceIndex = dstIntensityIndex = -1;
break;
- case GL_LUMINANCE:
+ case GL_LUMINANCE:
dstLuminanceIndex = 0;
dstRedIndex = dstGreenIndex = dstBlueIndex = dstAlphaIndex = -1;
dstIntensityIndex = -1;
dstAlphaIndex = 3;
dstLuminanceIndex = dstIntensityIndex = -1;
break;
- case GL_COLOR_INDEX:
- assert(0);
+ default:
+ _mesa_problem(ctx, "bad dstFormat in _mesa_unpack_float_color_span()");
+ UNDEFARRAY(rgba); /* mac 32k limitation */
+ return;
+ }
+
+ /* Now pack results in the requested dstFormat */
+ if (dstRedIndex >= 0) {
+ GLfloat *dst = dest;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ dst[dstRedIndex] = rgba[i][RCOMP];
+ dst += dstComponents;
+ }
+ }
+
+ if (dstGreenIndex >= 0) {
+ GLfloat *dst = dest;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ dst[dstGreenIndex] = rgba[i][GCOMP];
+ dst += dstComponents;
+ }
+ }
+
+ if (dstBlueIndex >= 0) {
+ GLfloat *dst = dest;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ dst[dstBlueIndex] = rgba[i][BCOMP];
+ dst += dstComponents;
+ }
+ }
+
+ if (dstAlphaIndex >= 0) {
+ GLfloat *dst = dest;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ dst[dstAlphaIndex] = rgba[i][ACOMP];
+ dst += dstComponents;
+ }
+ }
+
+ if (dstIntensityIndex >= 0) {
+ GLfloat *dst = dest;
+ GLuint i;
+ assert(dstIntensityIndex == 0);
+ assert(dstComponents == 1);
+ for (i = 0; i < n; i++) {
+ /* Intensity comes from red channel */
+ dst[i] = rgba[i][RCOMP];
+ }
+ }
+
+ if (dstLuminanceIndex >= 0) {
+ GLfloat *dst = dest;
+ GLuint i;
+ assert(dstLuminanceIndex == 0);
+ for (i = 0; i < n; i++) {
+ /* Luminance comes from red channel */
+ dst[0] = rgba[i][RCOMP];
+ dst += dstComponents;
+ }
+ }
+ UNDEFARRAY(rgba); /* mac 32k limitation */
+ }
+}
+
+
+/*
+ * Unpack a row of color index data from a client buffer according to
+ * the pixel unpacking parameters.
+ * This is (or will be) used by glDrawPixels, glTexImage[123]D, etc.
+ *
+ * Args: ctx - the context
+ * n - number of pixels
+ * dstType - destination data type
+ * dest - destination array
+ * srcType - source pixel type
+ * source - source data pointer
+ * srcPacking - pixel unpacking parameters
+ * transferOps - the pixel transfer operations to apply
+ */
+void
+_mesa_unpack_index_span( const GLcontext *ctx, GLuint n,
+ GLenum dstType, GLvoid *dest,
+ GLenum srcType, const GLvoid *source,
+ const struct gl_pixelstore_attrib *srcPacking,
+ GLuint transferOps )
+{
+ ASSERT(srcType == GL_BITMAP ||
+ srcType == GL_UNSIGNED_BYTE ||
+ srcType == GL_BYTE ||
+ srcType == GL_UNSIGNED_SHORT ||
+ srcType == GL_SHORT ||
+ srcType == GL_UNSIGNED_INT ||
+ srcType == GL_INT ||
+ srcType == GL_HALF_FLOAT_NV ||
+ srcType == GL_FLOAT);
+
+ ASSERT(dstType == GL_UNSIGNED_BYTE ||
+ dstType == GL_UNSIGNED_SHORT ||
+ dstType == GL_UNSIGNED_INT);
+
+
+ transferOps &= (IMAGE_MAP_COLOR_BIT | IMAGE_SHIFT_OFFSET_BIT);
+
+ /*
+ * Try simple cases first
+ */
+ if (transferOps == 0 && srcType == GL_UNSIGNED_BYTE
+ && dstType == GL_UNSIGNED_BYTE) {
+ MEMCPY(dest, source, n * sizeof(GLubyte));
+ }
+ else if (transferOps == 0 && srcType == GL_UNSIGNED_INT
+ && dstType == GL_UNSIGNED_INT && !srcPacking->SwapBytes) {
+ MEMCPY(dest, source, n * sizeof(GLuint));
+ }
+ else {
+ /*
+ * general solution
+ */
+ GLuint indexes[MAX_WIDTH];
+ assert(n <= MAX_WIDTH);
+
+ extract_uint_indexes(n, indexes, GL_COLOR_INDEX, srcType, source,
+ srcPacking);
+
+ if (transferOps & IMAGE_SHIFT_OFFSET_BIT) {
+ /* shift and offset indexes */
+ _mesa_shift_and_offset_ci(ctx, n, indexes);
+ }
+ if (transferOps & IMAGE_MAP_COLOR_BIT) {
+ /* Apply lookup table */
+ _mesa_map_ci(ctx, n, indexes);
+ }
+
+ /* convert to dest type */
+ switch (dstType) {
+ case GL_UNSIGNED_BYTE:
+ {
+ GLubyte *dst = (GLubyte *) dest;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ dst[i] = (GLubyte) (indexes[i] & 0xff);
+ }
+ }
+ break;
+ case GL_UNSIGNED_SHORT:
+ {
+ GLuint *dst = (GLuint *) dest;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ dst[i] = (GLushort) (indexes[i] & 0xffff);
+ }
+ }
+ break;
+ case GL_UNSIGNED_INT:
+ MEMCPY(dest, indexes, n * sizeof(GLuint));
break;
default:
- gl_problem(ctx, "bad dstFormat in _mesa_unpack_ubyte_span()");
+ _mesa_problem(ctx, "bad dstType in _mesa_unpack_index_span");
+ }
+ }
+}
+
+
+void
+_mesa_pack_index_span( const GLcontext *ctx, GLuint n,
+ GLenum dstType, GLvoid *dest, const GLuint *source,
+ const struct gl_pixelstore_attrib *dstPacking,
+ GLuint transferOps )
+{
+ GLuint indexes[MAX_WIDTH];
+
+ ASSERT(n <= MAX_WIDTH);
+
+ transferOps &= (IMAGE_MAP_COLOR_BIT | IMAGE_SHIFT_OFFSET_BIT);
+
+ if (transferOps & (IMAGE_MAP_COLOR_BIT | IMAGE_SHIFT_OFFSET_BIT)) {
+ /* make a copy of input */
+ MEMCPY(indexes, source, n * sizeof(GLuint));
+ if (transferOps & IMAGE_SHIFT_OFFSET_BIT) {
+ _mesa_shift_and_offset_ci( ctx, n, indexes);
+ }
+ if (transferOps & IMAGE_MAP_COLOR_BIT) {
+ _mesa_map_ci(ctx, n, indexes);
}
+ source = indexes;
+ }
-
- /* Now return the GLubyte data in the requested dstFormat */
- if (dstRedIndex >= 0) {
- GLubyte *dst = dest;
+ switch (dstType) {
+ case GL_UNSIGNED_BYTE:
+ {
+ GLubyte *dst = (GLubyte *) dest;
GLuint i;
for (i = 0; i < n; i++) {
- dst[dstRedIndex] = FLOAT_TO_UBYTE(rgba[i][RCOMP]);
- dst += dstComponents;
+ *dst++ = (GLubyte) source[i];
}
}
-
- if (dstGreenIndex >= 0) {
- GLubyte *dst = dest;
+ break;
+ case GL_BYTE:
+ {
+ GLbyte *dst = (GLbyte *) dest;
GLuint i;
for (i = 0; i < n; i++) {
- dst[dstGreenIndex] = FLOAT_TO_UBYTE(rgba[i][GCOMP]);
- dst += dstComponents;
+ dst[i] = (GLbyte) source[i];
}
}
-
- if (dstBlueIndex >= 0) {
- GLubyte *dst = dest;
+ break;
+ case GL_UNSIGNED_SHORT:
+ {
+ GLushort *dst = (GLushort *) dest;
GLuint i;
for (i = 0; i < n; i++) {
- dst[dstBlueIndex] = FLOAT_TO_UBYTE(rgba[i][BCOMP]);
- dst += dstComponents;
+ dst[i] = (GLushort) source[i];
+ }
+ if (dstPacking->SwapBytes) {
+ _mesa_swap2( (GLushort *) dst, n );
}
}
-
- if (dstAlphaIndex >= 0) {
- GLubyte *dst = dest;
+ break;
+ case GL_SHORT:
+ {
+ GLshort *dst = (GLshort *) dest;
GLuint i;
for (i = 0; i < n; i++) {
- dst[dstAlphaIndex] = FLOAT_TO_UBYTE(rgba[i][ACOMP]);
- dst += dstComponents;
+ dst[i] = (GLshort) source[i];
+ }
+ if (dstPacking->SwapBytes) {
+ _mesa_swap2( (GLushort *) dst, n );
}
}
-
- if (dstIntensityIndex >= 0) {
- GLubyte *dst = dest;
+ break;
+ case GL_UNSIGNED_INT:
+ {
+ GLuint *dst = (GLuint *) dest;
GLuint i;
- assert(dstIntensityIndex == 0);
- assert(dstComponents == 1);
for (i = 0; i < n; i++) {
- /* Intensity comes from red channel */
- dst[i] = FLOAT_TO_UBYTE(rgba[i][RCOMP]);
+ dst[i] = (GLuint) source[i];
+ }
+ if (dstPacking->SwapBytes) {
+ _mesa_swap4( (GLuint *) dst, n );
}
}
-
- if (dstLuminanceIndex >= 0) {
- GLubyte *dst = dest;
+ break;
+ case GL_INT:
+ {
+ GLint *dst = (GLint *) dest;
GLuint i;
- assert(dstLuminanceIndex == 0);
for (i = 0; i < n; i++) {
- /* Luminance comes from red channel */
- dst[0] = FLOAT_TO_UBYTE(rgba[i][RCOMP]);
- dst += dstComponents;
+ dst[i] = (GLint) source[i];
+ }
+ if (dstPacking->SwapBytes) {
+ _mesa_swap4( (GLuint *) dst, n );
+ }
+ }
+ break;
+ case GL_FLOAT:
+ {
+ GLfloat *dst = (GLfloat *) dest;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ dst[i] = (GLfloat) source[i];
+ }
+ if (dstPacking->SwapBytes) {
+ _mesa_swap4( (GLuint *) dst, n );
+ }
+ }
+ break;
+ case GL_HALF_FLOAT_NV:
+ {
+ GLhalfNV *dst = (GLhalfNV *) dest;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ dst[i] = _mesa_float_to_half((GLfloat) source[i]);
+ }
+ if (dstPacking->SwapBytes) {
+ _mesa_swap2( (GLushort *) dst, n );
}
}
+ break;
+ default:
+ _mesa_problem(ctx, "bad type in _mesa_pack_index_span");
}
}
-
/*
- * Unpack a row of color index data from a client buffer according to
- * the pixel unpacking parameters. Apply pixel transfer ops if enabled
- * and applyTransferOps is true.
- * This is (or will be) used by glDrawPixels, glTexImage[123]D, etc.
+ * Unpack a row of stencil data from a client buffer according to
+ * the pixel unpacking parameters.
+ * This is (or will be) used by glDrawPixels
*
* Args: ctx - the context
* n - number of pixels
- * dstType - destination datatype
+ * dstType - destination data type
* dest - destination array
* srcType - source pixel type
* source - source data pointer
- * unpacking - pixel unpacking parameters
- * applyTransferOps - apply offset/bias/lookup ops?
+ * srcPacking - pixel unpacking parameters
+ * transferOps - apply offset/bias/lookup ops?
*/
void
-_mesa_unpack_index_span( const GLcontext *ctx, GLuint n,
- GLenum dstType, GLvoid *dest,
- GLenum srcType, const GLvoid *source,
- const struct gl_pixelstore_attrib *unpacking,
- GLboolean applyTransferOps )
+_mesa_unpack_stencil_span( const GLcontext *ctx, GLuint n,
+ GLenum dstType, GLvoid *dest,
+ GLenum srcType, const GLvoid *source,
+ const struct gl_pixelstore_attrib *srcPacking,
+ GLuint transferOps )
{
ASSERT(srcType == GL_BITMAP ||
srcType == GL_UNSIGNED_BYTE ||
srcType == GL_SHORT ||
srcType == GL_UNSIGNED_INT ||
srcType == GL_INT ||
+ srcType == GL_HALF_FLOAT_NV ||
srcType == GL_FLOAT);
ASSERT(dstType == GL_UNSIGNED_BYTE ||
dstType == GL_UNSIGNED_SHORT ||
dstType == GL_UNSIGNED_INT);
- applyTransferOps &= (ctx->Pixel.IndexShift || ctx->Pixel.IndexOffset || ctx->Pixel.MapColorFlag);
+ /* only shift and offset apply to stencil */
+ transferOps &= IMAGE_SHIFT_OFFSET_BIT;
/*
* Try simple cases first
*/
- if (!applyTransferOps && srcType == GL_UNSIGNED_BYTE
- && dstType == GL_UNSIGNED_BYTE) {
+ if (transferOps == 0 &&
+ srcType == GL_UNSIGNED_BYTE &&
+ dstType == GL_UNSIGNED_BYTE) {
MEMCPY(dest, source, n * sizeof(GLubyte));
}
- else if (!applyTransferOps && srcType == GL_UNSIGNED_INT
- && dstType == GL_UNSIGNED_INT && !unpacking->SwapBytes) {
+ else if (transferOps == 0 &&
+ srcType == GL_UNSIGNED_INT &&
+ dstType == GL_UNSIGNED_INT &&
+ !srcPacking->SwapBytes) {
MEMCPY(dest, source, n * sizeof(GLuint));
}
else {
assert(n <= MAX_WIDTH);
extract_uint_indexes(n, indexes, GL_COLOR_INDEX, srcType, source,
- unpacking);
+ srcPacking);
- if (applyTransferOps) {
- if (ctx->Pixel.IndexShift || ctx->Pixel.IndexOffset) {
+ if (transferOps) {
+ if (transferOps & IMAGE_SHIFT_OFFSET_BIT) {
/* shift and offset indexes */
- gl_shift_and_offset_ci(ctx, n, indexes);
+ _mesa_shift_and_offset_ci(ctx, n, indexes);
}
- if (ctx->Pixel.MapColorFlag) {
- /* Apply lookup table */
- gl_map_ci(ctx, n, indexes);
+ if (ctx->Pixel.MapStencilFlag) {
+ /* Apply stencil lookup table */
+ GLuint mask = ctx->Pixel.MapStoSsize - 1;
+ GLuint i;
+ for (i=0;i<n;i++) {
+ indexes[i] = ctx->Pixel.MapStoS[ indexes[i] & mask ];
+ }
}
}
MEMCPY(dest, indexes, n * sizeof(GLuint));
break;
default:
- gl_problem(ctx, "bad dstType in _mesa_unpack_index_span");
+ _mesa_problem(ctx, "bad dstType in _mesa_unpack_stencil_span");
+ }
+ }
+}
+
+
+void
+_mesa_pack_stencil_span( const GLcontext *ctx, GLuint n,
+ GLenum dstType, GLvoid *dest, const GLstencil *source,
+ const struct gl_pixelstore_attrib *dstPacking )
+{
+ GLstencil stencil[MAX_WIDTH];
+
+ ASSERT(n <= MAX_WIDTH);
+
+ if (ctx->Pixel.IndexShift || ctx->Pixel.IndexOffset ||
+ ctx->Pixel.MapStencilFlag) {
+ /* make a copy of input */
+ MEMCPY(stencil, source, n * sizeof(GLstencil));
+ if (ctx->Pixel.IndexShift || ctx->Pixel.IndexOffset) {
+ _mesa_shift_and_offset_stencil( ctx, n, stencil );
+ }
+ if (ctx->Pixel.MapStencilFlag) {
+ _mesa_map_stencil( ctx, n, stencil );
+ }
+ source = stencil;
+ }
+
+ switch (dstType) {
+ case GL_UNSIGNED_BYTE:
+ if (sizeof(GLstencil) == 8) {
+ MEMCPY( dest, source, n );
+ }
+ else {
+ GLubyte *dst = (GLubyte *) dest;
+ GLuint i;
+ for (i=0;i<n;i++) {
+ dst[i] = (GLubyte) source[i];
+ }
+ }
+ break;
+ case GL_BYTE:
+ if (sizeof(GLstencil) == 8) {
+ MEMCPY( dest, source, n );
+ }
+ else {
+ GLbyte *dst = (GLbyte *) dest;
+ GLuint i;
+ for (i=0;i<n;i++) {
+ dst[i] = (GLbyte) source[i];
+ }
+ }
+ break;
+ case GL_UNSIGNED_SHORT:
+ {
+ GLushort *dst = (GLushort *) dest;
+ GLuint i;
+ for (i=0;i<n;i++) {
+ dst[i] = (GLushort) source[i];
+ }
+ if (dstPacking->SwapBytes) {
+ _mesa_swap2( (GLushort *) dst, n );
+ }
+ }
+ break;
+ case GL_SHORT:
+ {
+ GLshort *dst = (GLshort *) dest;
+ GLuint i;
+ for (i=0;i<n;i++) {
+ dst[i] = (GLshort) source[i];
+ }
+ if (dstPacking->SwapBytes) {
+ _mesa_swap2( (GLushort *) dst, n );
+ }
+ }
+ break;
+ case GL_UNSIGNED_INT:
+ {
+ GLuint *dst = (GLuint *) dest;
+ GLuint i;
+ for (i=0;i<n;i++) {
+ dst[i] = (GLuint) source[i];
+ }
+ if (dstPacking->SwapBytes) {
+ _mesa_swap4( (GLuint *) dst, n );
+ }
+ }
+ break;
+ case GL_INT:
+ {
+ GLint *dst = (GLint *) dest;
+ GLuint i;
+ for (i=0;i<n;i++) {
+ *dst++ = (GLint) source[i];
+ }
+ if (dstPacking->SwapBytes) {
+ _mesa_swap4( (GLuint *) dst, n );
+ }
+ }
+ break;
+ case GL_FLOAT:
+ {
+ GLfloat *dst = (GLfloat *) dest;
+ GLuint i;
+ for (i=0;i<n;i++) {
+ dst[i] = (GLfloat) source[i];
+ }
+ if (dstPacking->SwapBytes) {
+ _mesa_swap4( (GLuint *) dst, n );
+ }
+ }
+ break;
+ case GL_HALF_FLOAT_NV:
+ {
+ GLhalfNV *dst = (GLhalfNV *) dest;
+ GLuint i;
+ for (i=0;i<n;i++) {
+ dst[i] = _mesa_float_to_half( (float) source[i] );
+ }
+ if (dstPacking->SwapBytes) {
+ _mesa_swap2( (GLushort *) dst, n );
+ }
+ }
+ break;
+ case GL_BITMAP:
+ if (dstPacking->LsbFirst) {
+ GLubyte *dst = (GLubyte *) dest;
+ GLint shift = 0;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ if (shift == 0)
+ *dst = 0;
+ *dst |= ((source[i] != 0) << shift);
+ shift++;
+ if (shift == 8) {
+ shift = 0;
+ dst++;
+ }
+ }
+ }
+ else {
+ GLubyte *dst = (GLubyte *) dest;
+ GLint shift = 7;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ if (shift == 7)
+ *dst = 0;
+ *dst |= ((source[i] != 0) << shift);
+ shift--;
+ if (shift < 0) {
+ shift = 7;
+ dst++;
+ }
+ }
+ }
+ break;
+ default:
+ _mesa_problem(ctx, "bad type in _mesa_pack_index_span");
+ }
+}
+
+
+void
+_mesa_unpack_depth_span( const GLcontext *ctx, GLuint n, GLfloat *dest,
+ GLenum srcType, const GLvoid *source,
+ const struct gl_pixelstore_attrib *srcPacking )
+{
+ switch (srcType) {
+ case GL_BYTE:
+ {
+ GLuint i;
+ const GLubyte *src = (const GLubyte *) source;
+ for (i = 0; i < n; i++) {
+ dest[i] = BYTE_TO_FLOAT(src[i]);
+ }
+ }
+ break;
+ case GL_UNSIGNED_BYTE:
+ {
+ GLuint i;
+ const GLubyte *src = (const GLubyte *) source;
+ for (i = 0; i < n; i++) {
+ dest[i] = UBYTE_TO_FLOAT(src[i]);
+ }
+ }
+ break;
+ case GL_SHORT:
+ {
+ GLuint i;
+ const GLshort *src = (const GLshort *) source;
+ for (i = 0; i < n; i++) {
+ dest[i] = SHORT_TO_FLOAT(src[i]);
+ }
+ }
+ break;
+ case GL_UNSIGNED_SHORT:
+ {
+ GLuint i;
+ const GLushort *src = (const GLushort *) source;
+ for (i = 0; i < n; i++) {
+ dest[i] = USHORT_TO_FLOAT(src[i]);
+ }
+ }
+ break;
+ case GL_INT:
+ {
+ GLuint i;
+ const GLint *src = (const GLint *) source;
+ for (i = 0; i < n; i++) {
+ dest[i] = INT_TO_FLOAT(src[i]);
+ }
+ }
+ break;
+ case GL_UNSIGNED_INT:
+ {
+ GLuint i;
+ const GLuint *src = (const GLuint *) source;
+ for (i = 0; i < n; i++) {
+ dest[i] = UINT_TO_FLOAT(src[i]);
+ }
+ }
+ break;
+ case GL_FLOAT:
+ MEMCPY(dest, source, n * sizeof(GLfloat));
+ break;
+ case GL_HALF_FLOAT_NV:
+ {
+ GLuint i;
+ const GLhalfNV *src = (const GLhalfNV *) source;
+ for (i = 0; i < n; i++) {
+ dest[i] = _mesa_half_to_float(src[i]);
+ }
+ }
+ break;
+ default:
+ _mesa_problem(NULL, "bad type in _mesa_unpack_depth_span()");
+ return;
+ }
+
+
+ /* apply depth scale and bias and clamp to [0,1] */
+ if (ctx->Pixel.DepthScale != 1.0 || ctx->Pixel.DepthBias != 0.0) {
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ GLfloat d = dest[i] * ctx->Pixel.DepthScale + ctx->Pixel.DepthBias;
+ dest[i] = CLAMP(d, 0.0F, 1.0F);
+ }
+ }
+}
+
+
+/*
+ * Pack an array of depth values. The values are floats in [0,1].
+ */
+void
+_mesa_pack_depth_span( const GLcontext *ctx, GLuint n, GLvoid *dest,
+ GLenum dstType, const GLfloat *depthSpan,
+ const struct gl_pixelstore_attrib *dstPacking )
+{
+ GLfloat depthCopy[MAX_WIDTH];
+ const GLboolean bias_or_scale = ctx->Pixel.DepthBias != 0.0 ||
+ ctx->Pixel.DepthScale != 1.0;
+
+ ASSERT(n <= MAX_WIDTH);
+
+ if (bias_or_scale) {
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ GLfloat d;
+ d = depthSpan[i] * ctx->Pixel.DepthScale + ctx->Pixel.DepthBias;
+ depthCopy[i] = CLAMP(d, 0.0F, 1.0F);
+ }
+ depthSpan = depthCopy;
+ }
+
+ switch (dstType) {
+ case GL_UNSIGNED_BYTE:
+ {
+ GLubyte *dst = (GLubyte *) dest;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ dst[i] = FLOAT_TO_UBYTE( depthSpan[i] );
+ }
+ }
+ break;
+ case GL_BYTE:
+ {
+ GLbyte *dst = (GLbyte *) dest;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ dst[i] = FLOAT_TO_BYTE( depthSpan[i] );
+ }
+ }
+ break;
+ case GL_UNSIGNED_SHORT:
+ {
+ GLushort *dst = (GLushort *) dest;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ dst[i] = FLOAT_TO_USHORT( depthSpan[i] );
+ }
+ if (dstPacking->SwapBytes) {
+ _mesa_swap2( (GLushort *) dst, n );
+ }
}
+ break;
+ case GL_SHORT:
+ {
+ GLshort *dst = (GLshort *) dest;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ dst[i] = FLOAT_TO_SHORT( depthSpan[i] );
+ }
+ if (dstPacking->SwapBytes) {
+ _mesa_swap2( (GLushort *) dst, n );
+ }
+ }
+ break;
+ case GL_UNSIGNED_INT:
+ {
+ GLuint *dst = (GLuint *) dest;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ dst[i] = FLOAT_TO_UINT( depthSpan[i] );
+ }
+ if (dstPacking->SwapBytes) {
+ _mesa_swap4( (GLuint *) dst, n );
+ }
+ }
+ break;
+ case GL_INT:
+ {
+ GLint *dst = (GLint *) dest;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ dst[i] = FLOAT_TO_INT( depthSpan[i] );
+ }
+ if (dstPacking->SwapBytes) {
+ _mesa_swap4( (GLuint *) dst, n );
+ }
+ }
+ break;
+ case GL_FLOAT:
+ {
+ GLfloat *dst = (GLfloat *) dest;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ dst[i] = depthSpan[i];
+ }
+ if (dstPacking->SwapBytes) {
+ _mesa_swap4( (GLuint *) dst, n );
+ }
+ }
+ break;
+ case GL_HALF_FLOAT_NV:
+ {
+ GLhalfNV *dst = (GLhalfNV *) dest;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ dst[i] = _mesa_float_to_half(depthSpan[i]);
+ }
+ if (dstPacking->SwapBytes) {
+ _mesa_swap2( (GLushort *) dst, n );
+ }
+ }
+ break;
+ default:
+ _mesa_problem(ctx, "bad type in _mesa_pack_depth_span");
}
}
compsPerRow = 0;
}
else {
- const GLint bytesPerPixel = gl_bytes_per_pixel(format, type);
- const GLint components = gl_components_in_format(format);
+ const GLint bytesPerPixel = _mesa_bytes_per_pixel(format, type);
+ const GLint components = _mesa_components_in_format(format);
GLint bytesPerComp;
if (bytesPerPixel <= 0 || components <= 0)
return NULL; /* bad format or type. generate error later */
}
{
- GLubyte *destBuffer = MALLOC(bytesPerRow * height * depth);
+ GLubyte *destBuffer = (GLubyte *) MALLOC(bytesPerRow * height * depth);
GLubyte *dst;
GLint img, row;
if (!destBuffer)
dst = destBuffer;
for (img = 0; img < depth; img++) {
for (row = 0; row < height; row++) {
- const GLvoid *src = gl_pixel_addr_in_image(unpack, pixels,
+ const GLvoid *src = _mesa_image_address(unpack, pixels,
width, height, format, type, img, row, 0);
MEMCPY(dst, src, bytesPerRow);
/* byte flipping/swapping */
if (flipBytes) {
- gl_flip_bytes((GLubyte *) dst, bytesPerRow);
+ flip_bytes((GLubyte *) dst, bytesPerRow);
}
else if (swap2) {
- gl_swap2((GLushort*) dst, compsPerRow);
+ _mesa_swap2((GLushort*) dst, compsPerRow);
}
else if (swap4) {
- gl_swap4((GLuint*) dst, compsPerRow);
+ _mesa_swap4((GLuint*) dst, compsPerRow);
}
dst += bytesPerRow;
}
return destBuffer;
}
}
+
+#endif