-/* $Id: teximage.c,v 1.3 1999/10/10 12:56:45 brianp Exp $ */
+/* $Id: teximage.c,v 1.21 2000/03/20 23:40:12 brianp Exp $ */
/*
* Mesa 3-D graphics library
- * Version: 3.1
+ * Version: 3.3
*
- * Copyright (C) 1999 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2000 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"),
*/
-/* $XFree86: xc/lib/GL/mesa/src/teximage.c,v 1.3 1999/04/04 00:20:32 dawes Exp $ */
-
#ifdef PC_HEADER
#include "all.h"
#else
-#ifndef XFree86Server
-#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#else
-#include "GL/xf86glx.h"
-#endif
+#include "glheader.h"
#include "context.h"
#include "image.h"
-#include "macros.h"
+#include "mem.h"
#include "mmath.h"
#include "span.h"
#include "teximage.h"
#include "texstate.h"
#include "types.h"
-#ifdef XFree86Server
-#include "GL/xf86glx.h"
-#endif
#endif
/*
* NOTES:
*
- * The internal texture storage convension is an array of N GLubytes
- * where N = width * height * components. There is no padding.
+ * Mesa's native texture datatype is GLubyte. Native formats are
+ * GL_ALPHA, GL_LUMINANCE, GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, GL_RGBA,
+ * and GL_COLOR_INDEX.
+ * Device drivers are free to implement any internal format they want.
*/
+/*
+ * Default pixel packing of Mesa's internal texture images:
+ */
+static struct gl_pixelstore_attrib DefaultPacking = {
+ 1, /* Alignment */
+ 0, /* RowLength */
+ 0, /* SkipPixels */
+ 0, /* SkipRows */
+ 0, /* ImageHeight */
+ 0, /* SkipImages */
+ GL_FALSE, /* SwapBytes */
+ GL_FALSE /* LsbFirst */
+};
+
/*
* If n isn't an exact power of two return -1.
* If n<0 return -1.
*/
-static int logbase2( int n )
+static int
+logbase2( int n )
{
GLint i = 1;
GLint log2 = 0;
/*
* Given an internal texture format enum or 1, 2, 3, 4 return the
* corresponding _base_ internal format: GL_ALPHA, GL_LUMINANCE,
- * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA. Return -1 if
- * invalid enum.
+ * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA.
+ * Return -1 if invalid enum.
*/
-static GLint decode_internal_format( GLint format )
+static GLint
+decode_internal_format( GLint format )
{
switch (format) {
case GL_ALPHA:
* GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA. Return the
* number of components for the format. Return -1 if invalid enum.
*/
-static GLint components_in_intformat( GLint format )
+static GLint
+components_in_intformat( GLint format )
{
switch (format) {
case GL_ALPHA:
-struct gl_texture_image *gl_alloc_texture_image( void )
-{
- return GL_CALLOC_STRUCT(gl_texture_image);
-}
-
-
-
-void gl_free_texture_image( struct gl_texture_image *teximage )
-{
- if (teximage->Data) {
- GL_FREE( teximage->Data );
- }
- GL_FREE( teximage );
-}
-
-
-
/*
* Examine the texImage->Format field and set the Red, Green, Blue, etc
* texel component sizes to default values.
* These fields are set only here by core Mesa but device drivers may
* overwritting these fields to indicate true texel resolution.
*/
-static void set_teximage_component_sizes( struct gl_texture_image *texImage )
+static void
+set_teximage_component_sizes( struct gl_texture_image *texImage )
{
switch (texImage->Format) {
case GL_ALPHA:
texImage->LuminanceBits = 0;
texImage->IndexBits = 0;
break;
+ case GL_RED:
+ texImage->RedBits = 8;
+ texImage->GreenBits = 0;
+ texImage->BlueBits = 0;
+ texImage->AlphaBits = 0;
+ texImage->IntensityBits = 0;
+ texImage->LuminanceBits = 0;
+ texImage->IndexBits = 0;
+ break;
+ case GL_GREEN:
+ texImage->RedBits = 0;
+ texImage->GreenBits = 8;
+ texImage->BlueBits = 0;
+ texImage->AlphaBits = 0;
+ texImage->IntensityBits = 0;
+ texImage->LuminanceBits = 0;
+ texImage->IndexBits = 0;
+ break;
+ case GL_BLUE:
+ texImage->RedBits = 0;
+ texImage->GreenBits = 0;
+ texImage->BlueBits = 8;
+ texImage->AlphaBits = 0;
+ texImage->IntensityBits = 0;
+ texImage->LuminanceBits = 0;
+ texImage->IndexBits = 0;
+ break;
case GL_RGB:
+ case GL_BGR:
texImage->RedBits = 8;
texImage->GreenBits = 8;
texImage->BlueBits = 8;
texImage->IndexBits = 0;
break;
case GL_RGBA:
+ case GL_BGRA:
+ case GL_ABGR_EXT:
texImage->RedBits = 8;
texImage->GreenBits = 8;
texImage->BlueBits = 8;
}
+
+/*
+ * Return new gl_texture_image struct with all fields initialized to zero.
+ */
+struct gl_texture_image *
+gl_alloc_texture_image( void )
+{
+ return CALLOC_STRUCT(gl_texture_image);
+}
+
+
+
+/*
+ * Return a new gl_texture_image struct with most field initialized.
+ */
+static struct gl_texture_image *
+new_texture_image( GLsizei width, GLsizei height, GLsizei depth,
+ GLint border, GLenum internalFormat )
+{
+ struct gl_texture_image *img = CALLOC_STRUCT(gl_texture_image);
+ if (!img)
+ return NULL;
+
+ img->Format = (GLenum) decode_internal_format(internalFormat);
+ set_teximage_component_sizes( img );
+ img->IntFormat = (GLenum) internalFormat;
+ img->Border = border;
+ img->Width = width;
+ img->Height = height;
+ img->Depth = depth;
+ img->WidthLog2 = logbase2(width - 2 * border);
+ if (height == 1) /* 1-D texture */
+ img->HeightLog2 = 0;
+ else
+ img->HeightLog2 = logbase2(height - 2 * border);
+ if (depth == 1) /* 2-D texture */
+ img->DepthLog2 = 0;
+ else
+ img->DepthLog2 = logbase2(depth - 2 * border);
+ img->Width2 = 1 << img->WidthLog2;
+ img->Height2 = 1 << img->HeightLog2;
+ img->Depth2 = 1 << img->DepthLog2;
+ img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2);
+
+ return img;
+}
+
+
+
+void
+gl_free_texture_image( struct gl_texture_image *teximage )
+{
+ if (teximage->Data) {
+ FREE( teximage->Data );
+ teximage->Data = NULL;
+ }
+ FREE( teximage );
+}
+
+
+
/* Need this to prevent an out-of-bounds memory access when using
* X86 optimized code.
*/
#endif
+
/*
- * Given a gl_image, apply the pixel transfer scale, bias, and mapping
- * to produce a gl_texture_image. Convert image data to GLubytes.
- * Input: image - the incoming gl_image
- * internalFormat - desired format of resultant texture
- * border - texture border width (0 or 1)
- * Return: pointer to a gl_texture_image or NULL if an error occurs.
+ * This is called by glTexImage[123]D in order to build a gl_texture_image
+ * object given the client's parameters and image data.
+ *
+ * NOTES: Width, height and depth should include the border.
+ * All texture image parameters should have already been error checked.
*/
static struct gl_texture_image *
-image_to_texture( GLcontext *ctx, const struct gl_image *image,
- GLint internalFormat, GLint border )
+make_texture_image( GLcontext *ctx, GLint internalFormat,
+ GLint width, GLint height, GLint depth, GLint border,
+ GLenum srcFormat, GLenum srcType, const GLvoid *pixels,
+ const struct gl_pixelstore_attrib *unpacking)
{
- GLint components;
+ GLint components, numPixels;
struct gl_texture_image *texImage;
- GLint numPixels, pixel;
- GLboolean scaleOrBias;
- assert(image);
- assert(image->Width>0);
- assert(image->Height>0);
- assert(image->Depth>0);
+ assert(width > 0);
+ assert(height > 0);
+ assert(depth > 0);
+ assert(border == 0 || border == 1);
+ assert(pixels);
+ assert(unpacking);
- /* internalFormat = decode_internal_format(internalFormat);*/
- components = components_in_intformat(internalFormat);
- numPixels = image->Width * image->Height * image->Depth;
- texImage = gl_alloc_texture_image();
+ /*
+ * Allocate and initialize the texture_image struct
+ */
+ texImage = new_texture_image(width, height, depth, border, internalFormat);
if (!texImage)
return NULL;
- texImage->Format = (GLenum) decode_internal_format(internalFormat);
- set_teximage_component_sizes( texImage );
- texImage->IntFormat = (GLenum) internalFormat;
- texImage->Border = border;
- texImage->Width = image->Width;
- texImage->Height = image->Height;
- texImage->Depth = image->Depth;
- texImage->WidthLog2 = logbase2(image->Width - 2*border);
- if (image->Height==1) /* 1-D texture */
- texImage->HeightLog2 = 0;
- else
- texImage->HeightLog2 = logbase2(image->Height - 2*border);
- if (image->Depth==1) /* 2-D texture */
- texImage->DepthLog2 = 0;
- else
- texImage->DepthLog2 = logbase2(image->Depth - 2*border);
- texImage->Width2 = 1 << texImage->WidthLog2;
- texImage->Height2 = 1 << texImage->HeightLog2;
- texImage->Depth2 = 1 << texImage->DepthLog2;
- texImage->MaxLog2 = MAX2( texImage->WidthLog2, texImage->HeightLog2 );
- texImage->Data = (GLubyte *) GL_ALLOC( numPixels * components + EXTRA_BYTE );
+ components = components_in_intformat(internalFormat);
+ numPixels = texImage->Width * texImage->Height * texImage->Depth;
+
+ texImage->Data = (GLubyte *) MALLOC(numPixels * components + EXTRA_BYTE);
if (!texImage->Data) {
/* out of memory */
- gl_free_texture_image( texImage );
+ gl_free_texture_image(texImage);
return NULL;
}
- /* Determine if scaling and/or biasing is needed */
- if (ctx->Pixel.RedScale!=1.0F || ctx->Pixel.RedBias!=0.0F ||
- ctx->Pixel.GreenScale!=1.0F || ctx->Pixel.GreenBias!=0.0F ||
- ctx->Pixel.BlueScale!=1.0F || ctx->Pixel.BlueBias!=0.0F ||
- ctx->Pixel.AlphaScale!=1.0F || ctx->Pixel.AlphaBias!=0.0F) {
- scaleOrBias = GL_TRUE;
- }
- else {
- scaleOrBias = GL_FALSE;
- }
-
- switch (image->Type) {
- case GL_BITMAP:
- {
- GLint shift = ctx->Pixel.IndexShift;
- GLint offset = ctx->Pixel.IndexOffset;
- /* MapIto[RGBA]Size must be powers of two */
- GLint rMask = ctx->Pixel.MapItoRsize-1;
- GLint gMask = ctx->Pixel.MapItoGsize-1;
- GLint bMask = ctx->Pixel.MapItoBsize-1;
- GLint aMask = ctx->Pixel.MapItoAsize-1;
- GLint i, j;
- GLubyte *srcPtr = (GLubyte *) image->Data;
-
- assert( image->Format==GL_COLOR_INDEX );
-
- for (j=0; j<image->Height; j++) {
- GLubyte bitMask = 128;
- for (i=0; i<image->Width; i++) {
- GLint index;
- GLubyte red, green, blue, alpha;
-
- /* Fetch image color index */
- index = (*srcPtr & bitMask) ? 1 : 0;
- bitMask = bitMask >> 1;
- if (bitMask==0) {
- bitMask = 128;
- srcPtr++;
- }
- /* apply index shift and offset */
- if (shift>=0) {
- index = (index << shift) + offset;
- }
- else {
- index = (index >> -shift) + offset;
- }
- /* convert index to RGBA */
- red = (GLint) (ctx->Pixel.MapItoR[index & rMask] * 255.0F);
- green = (GLint) (ctx->Pixel.MapItoG[index & gMask] * 255.0F);
- blue = (GLint) (ctx->Pixel.MapItoB[index & bMask] * 255.0F);
- alpha = (GLint) (ctx->Pixel.MapItoA[index & aMask] * 255.0F);
-
- /* store texel (components are GLubytes in [0,255]) */
- pixel = j * image->Width + i;
- switch (texImage->Format) {
- case GL_ALPHA:
- texImage->Data[pixel] = alpha;
- break;
- case GL_LUMINANCE:
- texImage->Data[pixel] = red;
- break;
- case GL_LUMINANCE_ALPHA:
- texImage->Data[pixel*2+0] = red;
- texImage->Data[pixel*2+1] = alpha;
- break;
- case GL_INTENSITY:
- texImage->Data[pixel] = red;
- break;
- case GL_RGB:
- texImage->Data[pixel*3+0] = red;
- texImage->Data[pixel*3+1] = green;
- texImage->Data[pixel*3+2] = blue;
- break;
- case GL_RGBA:
- texImage->Data[pixel*4+0] = red;
- texImage->Data[pixel*4+1] = green;
- texImage->Data[pixel*4+2] = blue;
- texImage->Data[pixel*4+3] = alpha;
- break;
- default:
- gl_problem(ctx,"Bad format in image_to_texture");
- return NULL;
- }
- }
- if (bitMask!=128) {
- srcPtr++;
- }
- }
- }
- break;
- case GL_UNSIGNED_BYTE:
- if (image->Format == texImage->Format && !scaleOrBias && !ctx->Pixel.MapColorFlag) {
- switch (image->Format) {
- case GL_COLOR_INDEX:
- if (decode_internal_format(internalFormat)!=GL_COLOR_INDEX) {
- /* convert color index to RGBA */
- for (pixel=0; pixel<numPixels; pixel++) {
- GLint index = ((GLubyte*)image->Data)[pixel];
- index = (GLint) (255.0F * ctx->Pixel.MapItoR[index]);
- texImage->Data[pixel] = index;
- }
- numPixels = 0;
- break;
- }
- case GL_ALPHA:
- case GL_LUMINANCE:
- case GL_INTENSITY:
- MEMCPY(texImage->Data, image->Data, numPixels * 1);
- numPixels = 0;
- break;
- case GL_LUMINANCE_ALPHA:
- MEMCPY(texImage->Data, image->Data, numPixels * 2);
- numPixels = 0;
- break;
- case GL_RGB:
- MEMCPY(texImage->Data, image->Data, numPixels * 3);
- numPixels = 0;
- break;
- case GL_RGBA:
- MEMCPY(texImage->Data, image->Data, numPixels * 4);
- numPixels = 0;
- break;
- default:
- break;
- }
+ /*
+ * OK, the texture image struct has been initialized and the texture
+ * image memory has been allocated.
+ * Now fill in the texture image from the source data.
+ * This includes applying the pixel transfer operations.
+ */
+
+ /* try common 2D texture cases first */
+ if (!ctx->Pixel.ScaleOrBiasRGBA && !ctx->Pixel.MapColorFlag
+ && !ctx->Pixel.IndexOffset && !ctx->Pixel.IndexShift
+ && srcType == GL_UNSIGNED_BYTE && depth == 1) {
+
+ if (srcFormat == internalFormat) {
+ /* This will cover the common GL_RGB, GL_RGBA, GL_ALPHA,
+ * GL_LUMINANCE_ALPHA, etc. texture formats.
+ */
+ const GLubyte *src = (const GLubyte *) gl_pixel_addr_in_image(unpacking,
+ pixels, width, height, srcFormat, srcType, 0, 0, 0);
+ const GLubyte *src1 = (const GLubyte *) gl_pixel_addr_in_image(unpacking,
+ pixels, width, height, srcFormat, srcType, 0, 1, 0);
+ const GLint srcStride = src1 - src;
+ GLubyte *dst = texImage->Data;
+ GLint dstBytesPerRow = width * components * sizeof(GLubyte);
+ if (srcStride == dstBytesPerRow) {
+ MEMCPY(dst, src, height * dstBytesPerRow);
}
- for (pixel=0; pixel<numPixels; pixel++) {
- GLubyte red, green, blue, alpha;
- switch (image->Format) {
- case GL_COLOR_INDEX:
- if (decode_internal_format(internalFormat)==GL_COLOR_INDEX) {
- /* a paletted texture */
- GLint index = ((GLubyte*)image->Data)[pixel];
- red = index;
- }
- else {
- /* convert color index to RGBA */
- GLint index = ((GLubyte*)image->Data)[pixel];
- red = (GLint) (255.0F * ctx->Pixel.MapItoR[index]);
- green = (GLint) (255.0F * ctx->Pixel.MapItoG[index]);
- blue = (GLint) (255.0F * ctx->Pixel.MapItoB[index]);
- alpha = (GLint) (255.0F * ctx->Pixel.MapItoA[index]);
- }
- break;
- case GL_RGB:
- /* Fetch image RGBA values */
- red = ((GLubyte*) image->Data)[pixel*3+0];
- green = ((GLubyte*) image->Data)[pixel*3+1];
- blue = ((GLubyte*) image->Data)[pixel*3+2];
- alpha = 255;
- break;
- case GL_RGBA:
- red = ((GLubyte*) image->Data)[pixel*4+0];
- green = ((GLubyte*) image->Data)[pixel*4+1];
- blue = ((GLubyte*) image->Data)[pixel*4+2];
- alpha = ((GLubyte*) image->Data)[pixel*4+3];
- break;
- case GL_RED:
- red = ((GLubyte*) image->Data)[pixel];
- green = 0;
- blue = 0;
- alpha = 255;
- break;
- case GL_GREEN:
- red = 0;
- green = ((GLubyte*) image->Data)[pixel];
- blue = 0;
- alpha = 255;
- break;
- case GL_BLUE:
- red = 0;
- green = 0;
- blue = ((GLubyte*) image->Data)[pixel];
- alpha = 255;
- break;
- case GL_ALPHA:
- red = 0;
- green = 0;
- blue = 0;
- alpha = ((GLubyte*) image->Data)[pixel];
- break;
- case GL_LUMINANCE:
- red = ((GLubyte*) image->Data)[pixel];
- green = red;
- blue = red;
- alpha = 255;
- break;
- case GL_LUMINANCE_ALPHA:
- red = ((GLubyte*) image->Data)[pixel*2+0];
- green = red;
- blue = red;
- alpha = ((GLubyte*) image->Data)[pixel*2+1];
- break;
- default:
- gl_problem(ctx,"Bad format (2) in image_to_texture");
- return NULL;
- }
-
- if (scaleOrBias || ctx->Pixel.MapColorFlag) {
- /* Apply RGBA scale and bias */
- GLfloat r = UBYTE_COLOR_TO_FLOAT_COLOR(red);
- GLfloat g = UBYTE_COLOR_TO_FLOAT_COLOR(green);
- GLfloat b = UBYTE_COLOR_TO_FLOAT_COLOR(blue);
- GLfloat a = UBYTE_COLOR_TO_FLOAT_COLOR(alpha);
- if (scaleOrBias) {
- /* r,g,b,a now in [0,1] */
- r = r * ctx->Pixel.RedScale + ctx->Pixel.RedBias;
- g = g * ctx->Pixel.GreenScale + ctx->Pixel.GreenBias;
- b = b * ctx->Pixel.BlueScale + ctx->Pixel.BlueBias;
- a = a * ctx->Pixel.AlphaScale + ctx->Pixel.AlphaBias;
- r = CLAMP( r, 0.0F, 1.0F );
- g = CLAMP( g, 0.0F, 1.0F );
- b = CLAMP( b, 0.0F, 1.0F );
- a = CLAMP( a, 0.0F, 1.0F );
- }
- /* Apply pixel maps */
- if (ctx->Pixel.MapColorFlag) {
- GLint ir = (GLint) (r*ctx->Pixel.MapRtoRsize);
- GLint ig = (GLint) (g*ctx->Pixel.MapGtoGsize);
- GLint ib = (GLint) (b*ctx->Pixel.MapBtoBsize);
- GLint ia = (GLint) (a*ctx->Pixel.MapAtoAsize);
- r = ctx->Pixel.MapRtoR[ir];
- g = ctx->Pixel.MapGtoG[ig];
- b = ctx->Pixel.MapBtoB[ib];
- a = ctx->Pixel.MapAtoA[ia];
- }
- red = (GLint) (r * 255.0F);
- green = (GLint) (g * 255.0F);
- blue = (GLint) (b * 255.0F);
- alpha = (GLint) (a * 255.0F);
+ else {
+ GLint i;
+ for (i = 0; i < height; i++) {
+ MEMCPY(dst, src, dstBytesPerRow);
+ src += srcStride;
+ dst += dstBytesPerRow;
}
-
- /* store texel (components are GLubytes in [0,255]) */
- switch (texImage->Format) {
- case GL_COLOR_INDEX:
- texImage->Data[pixel] = red; /* really an index */
- break;
- case GL_ALPHA:
- texImage->Data[pixel] = alpha;
- break;
- case GL_LUMINANCE:
- texImage->Data[pixel] = red;
- break;
- case GL_LUMINANCE_ALPHA:
- texImage->Data[pixel*2+0] = red;
- texImage->Data[pixel*2+1] = alpha;
- break;
- case GL_INTENSITY:
- texImage->Data[pixel] = red;
- break;
- case GL_RGB:
- texImage->Data[pixel*3+0] = red;
- texImage->Data[pixel*3+1] = green;
- texImage->Data[pixel*3+2] = blue;
- break;
- case GL_RGBA:
- texImage->Data[pixel*4+0] = red;
- texImage->Data[pixel*4+1] = green;
- texImage->Data[pixel*4+2] = blue;
- texImage->Data[pixel*4+3] = alpha;
- break;
- default:
- gl_problem(ctx,"Bad format (3) in image_to_texture");
- return NULL;
+ }
+ return texImage; /* all done */
+ }
+ else if (srcFormat == GL_RGBA && internalFormat == GL_RGB) {
+ /* commonly used by Quake */
+ const GLubyte *src = (const GLubyte *) gl_pixel_addr_in_image(unpacking,
+ pixels, width, height, srcFormat, srcType, 0, 0, 0);
+ const GLubyte *src1 = (const GLubyte *) gl_pixel_addr_in_image(unpacking,
+ pixels, width, height, srcFormat, srcType, 0, 1, 0);
+ const GLint srcStride = src1 - src;
+ GLubyte *dst = texImage->Data;
+ GLint i, j;
+ for (i = 0; i < height; i++) {
+ const GLubyte *s = src;
+ for (j = 0; j < width; j++) {
+ *dst++ = *s++; /*red*/
+ *dst++ = *s++; /*green*/
+ *dst++ = *s++; /*blue*/
+ s++; /*alpha*/
}
+ src += srcStride;
}
- break;
+ return texImage; /* all done */
+ }
+ }
- case GL_FLOAT:
- for (pixel=0; pixel<numPixels; pixel++) {
- GLfloat red, green, blue, alpha;
- switch (image->Format) {
- case GL_COLOR_INDEX:
- if (decode_internal_format(internalFormat)==GL_COLOR_INDEX) {
- /* a paletted texture */
- GLint index = (GLint) ((GLfloat*) image->Data)[pixel];
- red = index;
- }
- else {
- GLint shift = ctx->Pixel.IndexShift;
- GLint offset = ctx->Pixel.IndexOffset;
- /* MapIto[RGBA]Size must be powers of two */
- GLint rMask = ctx->Pixel.MapItoRsize-1;
- GLint gMask = ctx->Pixel.MapItoGsize-1;
- GLint bMask = ctx->Pixel.MapItoBsize-1;
- GLint aMask = ctx->Pixel.MapItoAsize-1;
- /* Fetch image color index */
- GLint index = (GLint) ((GLfloat*) image->Data)[pixel];
- /* apply index shift and offset */
- if (shift>=0) {
- index = (index << shift) + offset;
- }
- else {
- index = (index >> -shift) + offset;
- }
- /* convert index to RGBA */
- red = ctx->Pixel.MapItoR[index & rMask];
- green = ctx->Pixel.MapItoG[index & gMask];
- blue = ctx->Pixel.MapItoB[index & bMask];
- alpha = ctx->Pixel.MapItoA[index & aMask];
- }
- break;
- case GL_RGB:
- /* Fetch image RGBA values */
- red = ((GLfloat*) image->Data)[pixel*3+0];
- green = ((GLfloat*) image->Data)[pixel*3+1];
- blue = ((GLfloat*) image->Data)[pixel*3+2];
- alpha = 1.0;
- break;
- case GL_RGBA:
- red = ((GLfloat*) image->Data)[pixel*4+0];
- green = ((GLfloat*) image->Data)[pixel*4+1];
- blue = ((GLfloat*) image->Data)[pixel*4+2];
- alpha = ((GLfloat*) image->Data)[pixel*4+3];
- break;
- case GL_RED:
- red = ((GLfloat*) image->Data)[pixel];
- green = 0.0;
- blue = 0.0;
- alpha = 1.0;
- break;
- case GL_GREEN:
- red = 0.0;
- green = ((GLfloat*) image->Data)[pixel];
- blue = 0.0;
- alpha = 1.0;
- break;
- case GL_BLUE:
- red = 0.0;
- green = 0.0;
- blue = ((GLfloat*) image->Data)[pixel];
- alpha = 1.0;
- break;
- case GL_ALPHA:
- red = 0.0;
- green = 0.0;
- blue = 0.0;
- alpha = ((GLfloat*) image->Data)[pixel];
- break;
- case GL_LUMINANCE:
- red = ((GLfloat*) image->Data)[pixel];
- green = red;
- blue = red;
- alpha = 1.0;
- break;
- case GL_LUMINANCE_ALPHA:
- red = ((GLfloat*) image->Data)[pixel*2+0];
- green = red;
- blue = red;
- alpha = ((GLfloat*) image->Data)[pixel*2+1];
- break;
- default:
- gl_problem(ctx,"Bad format (4) in image_to_texture");
- return NULL;
- }
-
- if (image->Format!=GL_COLOR_INDEX) {
- /* Apply RGBA scale and bias */
- if (scaleOrBias) {
- red = red * ctx->Pixel.RedScale + ctx->Pixel.RedBias;
- green = green * ctx->Pixel.GreenScale + ctx->Pixel.GreenBias;
- blue = blue * ctx->Pixel.BlueScale + ctx->Pixel.BlueBias;
- alpha = alpha * ctx->Pixel.AlphaScale + ctx->Pixel.AlphaBias;
- red = CLAMP( red, 0.0F, 1.0F );
- green = CLAMP( green, 0.0F, 1.0F );
- blue = CLAMP( blue, 0.0F, 1.0F );
- alpha = CLAMP( alpha, 0.0F, 1.0F );
- }
- /* Apply pixel maps */
- if (ctx->Pixel.MapColorFlag) {
- GLint ir = (GLint) (red *ctx->Pixel.MapRtoRsize);
- GLint ig = (GLint) (green*ctx->Pixel.MapGtoGsize);
- GLint ib = (GLint) (blue *ctx->Pixel.MapBtoBsize);
- GLint ia = (GLint) (alpha*ctx->Pixel.MapAtoAsize);
- red = ctx->Pixel.MapRtoR[ir];
- green = ctx->Pixel.MapGtoG[ig];
- blue = ctx->Pixel.MapBtoB[ib];
- alpha = ctx->Pixel.MapAtoA[ia];
- }
- }
- /* store texel (components are GLubytes in [0,255]) */
- switch (texImage->Format) {
- case GL_COLOR_INDEX:
- /* a paletted texture */
- texImage->Data[pixel] = (GLint) (red * 255.0F);
- break;
- case GL_ALPHA:
- texImage->Data[pixel] = (GLint) (alpha * 255.0F);
- break;
- case GL_LUMINANCE:
- texImage->Data[pixel] = (GLint) (red * 255.0F);
- break;
- case GL_LUMINANCE_ALPHA:
- texImage->Data[pixel*2+0] = (GLint) (red * 255.0F);
- texImage->Data[pixel*2+1] = (GLint) (alpha * 255.0F);
- break;
- case GL_INTENSITY:
- texImage->Data[pixel] = (GLint) (red * 255.0F);
- break;
- case GL_RGB:
- texImage->Data[pixel*3+0] = (GLint) (red * 255.0F);
- texImage->Data[pixel*3+1] = (GLint) (green * 255.0F);
- texImage->Data[pixel*3+2] = (GLint) (blue * 255.0F);
- break;
- case GL_RGBA:
- texImage->Data[pixel*4+0] = (GLint) (red * 255.0F);
- texImage->Data[pixel*4+1] = (GLint) (green * 255.0F);
- texImage->Data[pixel*4+2] = (GLint) (blue * 255.0F);
- texImage->Data[pixel*4+3] = (GLint) (alpha * 255.0F);
- break;
- default:
- gl_problem(ctx,"Bad format (5) in image_to_texture");
- return NULL;
- }
+ /*
+ * General case solutions
+ */
+ if (texImage->Format == GL_COLOR_INDEX) {
+ /* color index texture */
+ const GLint destBytesPerRow = width * components * sizeof(GLubyte);
+ const GLenum dstType = GL_UNSIGNED_BYTE;
+ GLubyte *dest = texImage->Data;
+ GLint img, row;
+ for (img = 0; img < depth; img++) {
+ for (row = 0; row < height; row++) {
+ const GLvoid *source = gl_pixel_addr_in_image(unpacking,
+ pixels, width, height, srcFormat, srcType, img, row, 0);
+ _mesa_unpack_index_span(ctx, width, dstType, dest,
+ srcType, source, unpacking, GL_TRUE);
+ dest += destBytesPerRow;
}
- break;
-
- default:
- gl_problem(ctx, "Bad image type in image_to_texture");
- return NULL;
+ }
+ }
+ else {
+ /* regular, color texture */
+ const GLint destBytesPerRow = width * components * sizeof(GLubyte);
+ const GLenum dstFormat = texImage->Format;
+ GLubyte *dest = texImage->Data;
+ GLint img, row;
+ for (img = 0; img < depth; img++) {
+ for (row = 0; row < height; row++) {
+ const GLvoid *source = gl_pixel_addr_in_image(unpacking,
+ pixels, width, height, srcFormat, srcType, img, row, 0);
+ _mesa_unpack_ubyte_color_span(ctx, width, dstFormat, dest,
+ srcFormat, srcType, source, unpacking, GL_TRUE);
+ dest += destBytesPerRow;
+ }
+ }
}
- return texImage;
+ return texImage; /* All done! */
}
components = components_in_intformat(internalFormat);
numPixels = width * height * depth;
- texImage = gl_alloc_texture_image();
- if (!texImage)
- return NULL;
-
- texImage->Format = (GLenum) decode_internal_format(internalFormat);
- set_teximage_component_sizes( texImage );
- texImage->IntFormat = internalFormat;
- texImage->Border = border;
- texImage->Width = width;
- texImage->Height = height;
- texImage->Depth = depth;
- texImage->WidthLog2 = logbase2(width - 2*border);
- if (height==1) /* 1-D texture */
- texImage->HeightLog2 = 0;
- else
- texImage->HeightLog2 = logbase2(height - 2*border);
- if (depth==1) /* 2-D texture */
- texImage->DepthLog2 = 0;
- else
- texImage->DepthLog2 = logbase2(depth - 2*border);
- texImage->Width2 = 1 << texImage->WidthLog2;
- texImage->Height2 = 1 << texImage->HeightLog2;
- texImage->Depth2 = 1 << texImage->DepthLog2;
- texImage->MaxLog2 = MAX2( texImage->WidthLog2, texImage->HeightLog2 );
-
- /* XXX should we really allocate memory for the image or let it be NULL? */
- /*texImage->Data = NULL;*/
+ texImage = new_texture_image(width, height, depth, border, internalFormat);
- texImage->Data = (GLubyte *) GL_ALLOC( numPixels * components + EXTRA_BYTE );
+ /* It's easier later if we really do have a texture image, rather than
+ * a NULL image pointer.
+ */
+ texImage->Data = (GLubyte *) MALLOC( numPixels * components + EXTRA_BYTE );
/*
* Let's see if anyone finds this. If glTexImage2D() is called with
* interesting instead of leaving it indeterminate.
*/
if (texImage->Data) {
- char message[8][32] = {
+ static const char message[8][32] = {
" X X XXXXX XXX X ",
" XX XX X X X X X ",
" X X X X X X X ",
GLint srcRow = 7 - i % 8;
for (j=0;j<width;j++) {
GLint srcCol = j % 32;
- GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70;
+ GLint texel = (message[srcRow][srcCol]=='X') ? 255 : 70;
for (k=0;k<components;k++) {
- *imgPtr++ = texel;
+ *imgPtr++ = (GLubyte) texel;
}
}
}
/*
- * Test glTexImage() parameters for errors.
+ * Test glTexImage[123]D() parameters for errors.
* Input:
* dimensions - must be 1 or 2 or 3
* Return: GL_TRUE = an error was detected, GL_FALSE = no errors
*/
-static GLboolean texture_error_check( GLcontext *ctx, GLenum target,
- GLint level, GLint internalFormat,
- GLenum format, GLenum type,
- GLint dimensions,
- GLint width, GLint height,
- GLint depth, GLint border )
+static GLboolean
+texture_error_check( GLcontext *ctx, GLenum target,
+ GLint level, GLint internalFormat,
+ GLenum format, GLenum type,
+ GLuint dimensions,
+ GLint width, GLint height,
+ GLint depth, GLint border )
{
GLboolean isProxy;
GLint iformat;
if (dimensions == 1) {
- isProxy = (target == GL_PROXY_TEXTURE_1D);
+ isProxy = (GLboolean) (target == GL_PROXY_TEXTURE_1D);
if (target != GL_TEXTURE_1D && !isProxy) {
gl_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" );
return GL_TRUE;
}
}
else if (dimensions == 2) {
- isProxy = (target == GL_PROXY_TEXTURE_2D);
+ isProxy = (GLboolean) (target == GL_PROXY_TEXTURE_2D);
if (target != GL_TEXTURE_2D && !isProxy) {
gl_error( ctx, GL_INVALID_ENUM, "glTexImage2D(target)" );
return GL_TRUE;
}
}
else if (dimensions == 3) {
- isProxy = (target == GL_PROXY_TEXTURE_3D);
+ isProxy = (GLboolean) (target == GL_PROXY_TEXTURE_3D);
if (target != GL_TEXTURE_3D && !isProxy) {
gl_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" );
return GL_TRUE;
/* Border */
if (border!=0 && border!=1) {
if (!isProxy) {
- if (dimensions == 1)
- gl_error( ctx, GL_INVALID_VALUE, "glTexImage1D(border)" );
- else if (dimensions == 2)
- gl_error( ctx, GL_INVALID_VALUE, "glTexImage2D(border)" );
- else if (dimensions == 3)
- gl_error( ctx, GL_INVALID_VALUE, "glTexImage3D(border)" );
+ char message[100];
+ sprintf(message, "glTexImage%dD(border)", dimensions);
+ gl_error(ctx, GL_INVALID_VALUE, message);
}
return GL_TRUE;
}
if (width < 2 * border || width > 2 + ctx->Const.MaxTextureSize
|| logbase2( width - 2 * border ) < 0) {
if (!isProxy) {
- if (dimensions == 1)
- gl_error( ctx, GL_INVALID_VALUE, "glTexImage1D(width)" );
- else if (dimensions == 2)
- gl_error( ctx, GL_INVALID_VALUE, "glTexImage2D(width)" );
- else if (dimensions == 3)
- gl_error( ctx, GL_INVALID_VALUE, "glTexImage3D(width)" );
+ char message[100];
+ sprintf(message, "glTexImage%dD(width)", dimensions);
+ gl_error(ctx, GL_INVALID_VALUE, message);
}
return GL_TRUE;
}
if (height < 2 * border || height > 2 + ctx->Const.MaxTextureSize
|| logbase2( height - 2 * border ) < 0) {
if (!isProxy) {
- if (dimensions == 2)
- gl_error( ctx, GL_INVALID_VALUE, "glTexImage2D(height)" );
- else if (dimensions == 3)
- gl_error( ctx, GL_INVALID_VALUE, "glTexImage3D(height)" );
- return GL_TRUE;
+ char message[100];
+ sprintf(message, "glTexImage%dD(height)", dimensions);
+ gl_error(ctx, GL_INVALID_VALUE, message);
}
+ return GL_TRUE;
}
}
/* Level */
if (level<0 || level>=ctx->Const.MaxTextureLevels) {
- if (dimensions == 1)
- gl_error( ctx, GL_INVALID_VALUE, "glTexImage1D(level)" );
- else if (dimensions == 2)
- gl_error( ctx, GL_INVALID_VALUE, "glTexImage2D(level)" );
- else if (dimensions == 3)
- gl_error( ctx, GL_INVALID_VALUE, "glTexImage3D(level)" );
+ if (!isProxy) {
+ char message[100];
+ sprintf(message, "glTexImage%dD(level)", dimensions);
+ gl_error(ctx, GL_INVALID_VALUE, message);
+ }
return GL_TRUE;
}
iformat = decode_internal_format( internalFormat );
if (iformat < 0) {
- if (dimensions == 1)
- gl_error( ctx, GL_INVALID_VALUE, "glTexImage1D(internalFormat)" );
- else if (dimensions == 2)
- gl_error( ctx, GL_INVALID_VALUE, "glTexImage2D(internalFormat)" );
- else if (dimensions == 3)
- gl_error( ctx, GL_INVALID_VALUE, "glTexImage3D(internalFormat)" );
+ if (!isProxy) {
+ char message[100];
+ sprintf(message, "glTexImage%dD(internalFormat)", dimensions);
+ gl_error(ctx, GL_INVALID_VALUE, message);
+ }
return GL_TRUE;
}
if (!gl_is_legal_format_and_type( format, type )) {
- if (dimensions == 1)
- gl_error( ctx, GL_INVALID_ENUM, "glTexImage1D(format or type)");
- else if (dimensions == 2)
- gl_error( ctx, GL_INVALID_ENUM, "glTexImage2D(format or type)");
- else if (dimensions == 3)
- gl_error( ctx, GL_INVALID_ENUM, "glTexImage3D(format or type)");
+ /* Yes, generate GL_INVALID_OPERATION, not GL_INVALID_ENUM, if there
+ * is a type/format mismatch. See 1.2 spec page 94, sec 3.6.4.
+ */
+ if (!isProxy) {
+ char message[100];
+ sprintf(message, "glTexImage%dD(format or type)", dimensions);
+ gl_error(ctx, GL_INVALID_OPERATION, message);
+ }
return GL_TRUE;
}
/*
- * Called from the API. Note that width includes the border.
+ * Test glTexSubImage[123]D() parameters for errors.
+ * Input:
+ * dimensions - must be 1 or 2 or 3
+ * Return: GL_TRUE = an error was detected, GL_FALSE = no errors
*/
-void gl_TexImage1D( GLcontext *ctx,
- GLenum target, GLint level, GLint internalformat,
- GLsizei width, GLint border, GLenum format,
- GLenum type, struct gl_image *image )
+static GLboolean
+subtexture_error_check( GLcontext *ctx, GLuint dimensions,
+ GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLint width, GLint height, GLint depth,
+ GLenum format, GLenum type )
{
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glTexImage1D");
-
- if (target==GL_TEXTURE_1D) {
- struct gl_texture_image *teximage;
- if (texture_error_check( ctx, target, level, internalformat,
- format, type, 1, width, 1, 1, border )) {
- /* error in texture image was detected */
- return;
- }
+ struct gl_texture_image *destTex;
- /* free current texture image, if any */
- if (texUnit->CurrentD[1]->Image[level]) {
- gl_free_texture_image( texUnit->CurrentD[1]->Image[level] );
+ if (dimensions == 1) {
+ if (target != GL_TEXTURE_1D) {
+ gl_error( ctx, GL_INVALID_ENUM, "glTexSubImage1D(target)" );
+ return GL_TRUE;
}
-
- /* make new texture from source image */
- if (image) {
- teximage = image_to_texture(ctx, image, internalformat, border);
+ }
+ else if (dimensions == 2) {
+ if (target != GL_TEXTURE_2D) {
+ gl_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
+ return GL_TRUE;
}
- else {
- teximage = make_null_texture(ctx, (GLenum) internalformat,
- width, 1, 1, border);
+ }
+ else if (dimensions == 3) {
+ if (target != GL_TEXTURE_3D) {
+ gl_error( ctx, GL_INVALID_ENUM, "glTexSubImage3D(target)" );
+ return GL_TRUE;
}
+ }
+ else {
+ gl_problem( ctx, "bad dims in texture_error_check" );
+ return GL_TRUE;
+ }
- /* install new texture image */
-
- texUnit->CurrentD[1]->Image[level] = teximage;
- gl_put_texobj_on_dirty_list( ctx, texUnit->CurrentD[1] );
- ctx->NewState |= NEW_TEXTURING;
+ if (level < 0 || level >= ctx->Const.MaxTextureLevels) {
+ gl_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level)");
+ return GL_TRUE;
+ }
- /* free the source image */
- if (image && image->RefCount==0) {
- /* if RefCount>0 then image must be in a display list */
- gl_free_image(image);
- }
+ if (width < 0) {
+ char message[100];
+ sprintf(message, "glTexSubImage%dD(width)", dimensions);
+ gl_error(ctx, GL_INVALID_VALUE, message);
+ return GL_TRUE;
+ }
+ if (height < 0 && dimensions > 1) {
+ char message[100];
+ sprintf(message, "glTexSubImage%dD(height)", dimensions);
+ gl_error(ctx, GL_INVALID_VALUE, message);
+ return GL_TRUE;
+ }
+ if (depth < 0 && dimensions > 2) {
+ char message[100];
+ sprintf(message, "glTexSubImage%dD(depth)", dimensions);
+ gl_error(ctx, GL_INVALID_VALUE, message);
+ return GL_TRUE;
+ }
+
+ destTex = texUnit->CurrentD[2]->Image[level];
+ if (!destTex) {
+ gl_error(ctx, GL_INVALID_OPERATION, "glTexSubImage2D");
+ return GL_TRUE;
+ }
+
+ if (xoffset < -((GLint)destTex->Border)) {
+ gl_error(ctx, GL_INVALID_VALUE, "glTexSubImage1/2/3D(xoffset)");
+ return GL_TRUE;
+ }
+ if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) {
+ gl_error(ctx, GL_INVALID_VALUE, "glTexSubImage1/2/3D(xoffset+width)");
+ return GL_TRUE;
+ }
+ if (dimensions > 1) {
+ if (yoffset < -((GLint)destTex->Border)) {
+ gl_error(ctx, GL_INVALID_VALUE, "glTexSubImage2/3D(yoffset)");
+ return GL_TRUE;
+ }
+ if (yoffset + height > (GLint) (destTex->Height + destTex->Border)) {
+ gl_error(ctx, GL_INVALID_VALUE, "glTexSubImage2/3D(yoffset+height)");
+ return GL_TRUE;
+ }
+ }
+ if (dimensions > 2) {
+ if (zoffset < -((GLint)destTex->Border)) {
+ gl_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)");
+ return GL_TRUE;
+ }
+ if (zoffset + depth > (GLint) (destTex->Depth+destTex->Border)) {
+ gl_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)");
+ return GL_TRUE;
+ }
+ }
+
+ if (!gl_is_legal_format_and_type(format, type)) {
+ char message[100];
+ sprintf(message, "glTexSubImage%dD(format or type)", dimensions);
+ gl_error(ctx, GL_INVALID_ENUM, message);
+ return GL_TRUE;
+ }
+
+ return GL_FALSE;
+}
+
+
+/*
+ * Test glCopyTexImage[12]D() parameters for errors.
+ * Input: dimensions - must be 1 or 2 or 3
+ * Return: GL_TRUE = an error was detected, GL_FALSE = no errors
+ */
+static GLboolean
+copytexture_error_check( GLcontext *ctx, GLuint dimensions,
+ GLenum target, GLint level, GLint internalFormat,
+ GLint width, GLint height, GLint border )
+{
+ GLint iformat;
+
+ if (target != GL_TEXTURE_1D && target != GL_TEXTURE_2D) {
+ gl_error( ctx, GL_INVALID_ENUM, "glCopyTexImage1/2D(target)" );
+ return GL_TRUE;
+ }
+
+ if (dimensions == 1 && target != GL_TEXTURE_1D) {
+ gl_error( ctx, GL_INVALID_ENUM, "glCopyTexImage1D(target)" );
+ return GL_TRUE;
+ }
+ else if (dimensions == 2 && target != GL_TEXTURE_2D) {
+ gl_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
+ return GL_TRUE;
+ }
+
+ /* Border */
+ if (border!=0 && border!=1) {
+ char message[100];
+ sprintf(message, "glCopyTexImage%dD(border)", dimensions);
+ gl_error(ctx, GL_INVALID_VALUE, message);
+ return GL_TRUE;
+ }
+
+ /* Width */
+ if (width < 2 * border || width > 2 + ctx->Const.MaxTextureSize
+ || logbase2( width - 2 * border ) < 0) {
+ char message[100];
+ sprintf(message, "glCopyTexImage%dD(width)", dimensions);
+ gl_error(ctx, GL_INVALID_VALUE, message);
+ return GL_TRUE;
+ }
+
+ /* Height */
+ if (dimensions >= 2) {
+ if (height < 2 * border || height > 2 + ctx->Const.MaxTextureSize
+ || logbase2( height - 2 * border ) < 0) {
+ char message[100];
+ sprintf(message, "glCopyTexImage%dD(height)", dimensions);
+ gl_error(ctx, GL_INVALID_VALUE, message);
+ return GL_TRUE;
+ }
+ }
+
+ /* Level */
+ if (level<0 || level>=ctx->Const.MaxTextureLevels) {
+ char message[100];
+ sprintf(message, "glCopyTexImage%dD(level)", dimensions);
+ gl_error(ctx, GL_INVALID_VALUE, message);
+ return GL_TRUE;
+ }
+
+ iformat = decode_internal_format( internalFormat );
+ if (iformat < 0) {
+ char message[100];
+ sprintf(message, "glCopyTexImage%dD(internalFormat)", dimensions);
+ gl_error(ctx, GL_INVALID_VALUE, message);
+ return GL_TRUE;
+ }
+
+ /* if we get here, the parameters are OK */
+ return GL_FALSE;
+}
+
+
+static GLboolean
+copytexsubimage_error_check( GLcontext *ctx, GLuint dimensions,
+ GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height )
+{
+ struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ struct gl_texture_image *teximage;
+
+ if (dimensions == 1 && target != GL_TEXTURE_1D) {
+ gl_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage1D(target)" );
+ return GL_TRUE;
+ }
+ else if (dimensions == 2 && target != GL_TEXTURE_2D) {
+ gl_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
+ return GL_TRUE;
+ }
+ else if (dimensions == 3 && target != GL_TEXTURE_3D) {
+ gl_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage3D(target)" );
+ return GL_TRUE;
+ }
+
+ if (level < 0 || level >= ctx->Const.MaxTextureLevels) {
+ char message[100];
+ sprintf(message, "glCopyTexSubImage%dD(level)", dimensions);
+ gl_error(ctx, GL_INVALID_VALUE, message);
+ return GL_TRUE;
+ }
+
+ if (width < 0) {
+ char message[100];
+ sprintf(message, "glCopyTexSubImage%dD(width)", dimensions );
+ gl_error(ctx, GL_INVALID_VALUE, message);
+ return GL_TRUE;
+ }
+ if (dimensions > 1 && height < 0) {
+ char message[100];
+ sprintf(message, "glCopyTexSubImage%dD(height)", dimensions );
+ gl_error(ctx, GL_INVALID_VALUE, message);
+ return GL_TRUE;
+ }
+
+ teximage = texUnit->CurrentD[dimensions]->Image[level];
+ if (!teximage) {
+ char message[100];
+ sprintf(message, "glCopyTexSubImage%dD(undefined texture)", dimensions);
+ gl_error(ctx, GL_INVALID_OPERATION, message);
+ return GL_TRUE;
+ }
+
+ if (xoffset < -((GLint)teximage->Border)) {
+ char message[100];
+ sprintf(message, "glCopyTexSubImage%dD(xoffset)", dimensions);
+ gl_error(ctx, GL_INVALID_VALUE, message);
+ return GL_TRUE;
+ }
+ if (xoffset+width > (GLint) (teximage->Width+teximage->Border)) {
+ char message[100];
+ sprintf(message, "glCopyTexSubImage%dD(xoffset+width)", dimensions);
+ gl_error(ctx, GL_INVALID_VALUE, message);
+ return GL_TRUE;
+ }
+ if (dimensions > 1) {
+ if (yoffset < -((GLint)teximage->Border)) {
+ char message[100];
+ sprintf(message, "glCopyTexSubImage%dD(yoffset)", dimensions);
+ gl_error(ctx, GL_INVALID_VALUE, message);
+ return GL_TRUE;
+ }
+ /* NOTE: we're adding the border here, not subtracting! */
+ if (yoffset+height > (GLint) (teximage->Height+teximage->Border)) {
+ char message[100];
+ sprintf(message, "glCopyTexSubImage%dD(yoffset+height)", dimensions);
+ gl_error(ctx, GL_INVALID_VALUE, message);
+ return GL_TRUE;
+ }
+ }
+
+ if (dimensions > 2) {
+ if (zoffset < -((GLint)teximage->Border)) {
+ char message[100];
+ sprintf(message, "glCopyTexSubImage%dD(zoffset)", dimensions);
+ gl_error(ctx, GL_INVALID_VALUE, message);
+ return GL_TRUE;
+ }
+ if (zoffset > (GLint) (teximage->Depth+teximage->Border)) {
+ char message[100];
+ sprintf(message, "glCopyTexSubImage%dD(zoffset+depth)", dimensions);
+ gl_error(ctx, GL_INVALID_VALUE, message);
+ return GL_TRUE;
+ }
+ }
+
+ /* if we get here, the parameters are OK */
+ return GL_FALSE;
+}
+
+
+
+
+/*
+ * Called from the API. Note that width includes the border.
+ */
+void
+_mesa_TexImage1D( GLenum target, GLint level, GLint internalformat,
+ GLsizei width, GLint border, GLenum format,
+ GLenum type, const GLvoid *pixels )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glTexImage1D");
+
+ if (target==GL_TEXTURE_1D) {
+ struct gl_texture_unit *texUnit;
+ struct gl_texture_image *teximage;
+
+ if (texture_error_check( ctx, target, level, internalformat,
+ format, type, 1, width, 1, 1, border )) {
+ return; /* error in texture image was detected */
+ }
+
+ texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+
+ /* free current texture image, if any */
+ if (texUnit->CurrentD[1]->Image[level]) {
+ gl_free_texture_image( texUnit->CurrentD[1]->Image[level] );
+ }
+
+ /* make new texture from source image */
+ if (pixels) {
+ teximage = make_texture_image(ctx, internalformat, width, 1, 1,
+ border, format, type, pixels, &ctx->Unpack);
+ }
+ else {
+ teximage = make_null_texture(ctx, (GLenum) internalformat,
+ width, 1, 1, border);
+ }
+
+ /* install new texture image */
+ texUnit->CurrentD[1]->Image[level] = teximage;
+ gl_put_texobj_on_dirty_list( ctx, texUnit->CurrentD[1] );
+ ctx->NewState |= NEW_TEXTURING;
/* tell driver about change */
if (ctx->Driver.TexImage) {
ctx->Texture.Proxy1D->Image[level]->Height = 1;
ctx->Texture.Proxy1D->Image[level]->Depth = 1;
}
- if (image && image->RefCount==0) {
- /* if RefCount>0 then image must be in a display list */
- gl_free_image(image);
- }
}
else {
gl_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" );
}
-
-
-/*
- * Called by the API or display list executor.
- * Note that width and height include the border.
- */
-void gl_TexImage2D( GLcontext *ctx,
- GLenum target, GLint level, GLint internalformat,
- GLsizei width, GLsizei height, GLint border,
- GLenum format, GLenum type,
- struct gl_image *image )
+void
+_mesa_TexImage2D( GLenum target, GLint level, GLint internalformat,
+ GLsizei width, GLsizei height, GLint border,
+ GLenum format, GLenum type,
+ const GLvoid *pixels )
{
- struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glTexImage2D");
if (target==GL_TEXTURE_2D) {
+ struct gl_texture_unit *texUnit;
struct gl_texture_image *teximage;
+
if (texture_error_check( ctx, target, level, internalformat,
format, type, 2, width, height, 1, border )) {
- /* error in texture image was detected */
- return;
+ return; /* error in texture image was detected */
}
+ texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+
/* free current texture image, if any */
if (texUnit->CurrentD[2]->Image[level]) {
gl_free_texture_image( texUnit->CurrentD[2]->Image[level] );
}
/* make new texture from source image */
- if (image) {
- teximage = image_to_texture(ctx, image, internalformat, border);
+ if (pixels) {
+ teximage = make_texture_image(ctx, internalformat, width, height, 1,
+ border, format, type, pixels, &ctx->Unpack);
}
else {
teximage = make_null_texture(ctx, (GLenum) internalformat,
gl_put_texobj_on_dirty_list( ctx, texUnit->CurrentD[2] );
ctx->NewState |= NEW_TEXTURING;
- /* free the source image */
- if (image && image->RefCount==0) {
- /* if RefCount>0 then image must be in a display list */
- gl_free_image(image);
- }
-
/* tell driver about change */
if (ctx->Driver.TexImage) {
(*ctx->Driver.TexImage)( ctx, GL_TEXTURE_2D,
ctx->Texture.Proxy2D->Image[level]->Height = height;
ctx->Texture.Proxy2D->Image[level]->Depth = 1;
}
- if (image && image->RefCount==0) {
- /* if RefCount>0 then image must be in a display list */
- gl_free_image(image);
- }
}
else {
gl_error( ctx, GL_INVALID_ENUM, "glTexImage2D(target)" );
* Called by the API or display list executor.
* Note that width and height include the border.
*/
-void gl_TexImage3DEXT( GLcontext *ctx,
- GLenum target, GLint level, GLint internalformat,
- GLsizei width, GLsizei height, GLsizei depth,
- GLint border, GLenum format, GLenum type,
- struct gl_image *image )
+void
+_mesa_TexImage3D( GLenum target, GLint level, GLint internalformat,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLint border, GLenum format, GLenum type,
+ const GLvoid *pixels )
{
- struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glTexImage3DEXT");
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glTexImage3D");
if (target==GL_TEXTURE_3D_EXT) {
+ struct gl_texture_unit *texUnit;
struct gl_texture_image *teximage;
if (texture_error_check( ctx, target, level, internalformat,
format, type, 3, width, height, depth,
border )) {
- /* error in texture image was detected */
- return;
+ return; /* error in texture image was detected */
}
+ texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+
/* free current texture image, if any */
if (texUnit->CurrentD[3]->Image[level]) {
gl_free_texture_image( texUnit->CurrentD[3]->Image[level] );
}
/* make new texture from source image */
- if (image) {
- teximage = image_to_texture(ctx, image, internalformat, border);
+ if (pixels) {
+ teximage = make_texture_image(ctx, internalformat, width, height,
+ depth, border, format, type, pixels, &ctx->Unpack);
}
else {
teximage = make_null_texture(ctx, (GLenum) internalformat,
gl_put_texobj_on_dirty_list( ctx, texUnit->CurrentD[3] );
ctx->NewState |= NEW_TEXTURING;
- /* free the source image */
- if (image && image->RefCount==0) {
- /* if RefCount>0 then image must be in a display list */
- gl_free_image(image);
- }
-
/* tell driver about change */
if (ctx->Driver.TexImage) {
(*ctx->Driver.TexImage)( ctx, GL_TEXTURE_3D_EXT,
ctx->Texture.Proxy3D->Image[level]->Height = height;
ctx->Texture.Proxy3D->Image[level]->Depth = depth;
}
- if (image && image->RefCount==0) {
- /* if RefCount>0 then image must be in a display list */
- gl_free_image(image);
- }
}
else {
- gl_error( ctx, GL_INVALID_ENUM, "glTexImage3DEXT(target)" );
+ gl_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" );
return;
}
}
+void
+_mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalformat,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLint border, GLenum format, GLenum type,
+ const GLvoid *pixels )
+{
+ _mesa_TexImage3D(target, level, (GLint) internalformat, width, height,
+ depth, border, format, type, pixels);
+}
+
+
+/*
+ * Fetch a texture image from the device driver.
+ * Store the results in the given texture object at the given mipmap level.
+ */
+static void
+get_teximage_from_driver( GLcontext *ctx, GLenum target, GLint level,
+ const struct gl_texture_object *texObj )
+{
+ GLvoid *image;
+ GLenum imgFormat, imgType;
+ GLboolean freeImage;
+ struct gl_texture_image *texImage;
+ GLint destComponents, numPixels, srcBytesPerTexel;
+
+ if (!ctx->Driver.GetTexImage)
+ return;
+
+ image = (*ctx->Driver.GetTexImage)( ctx, target, level,
+ &imgFormat, &imgType, &freeImage);
+ if (!image)
+ return;
+
+ texImage = texObj->Image[level];
+ ASSERT(texImage);
+ if (!texImage)
+ return;
+
+ destComponents = components_in_intformat(texImage->Format);
+ assert(destComponents > 0);
+ numPixels = texImage->Width * texImage->Height * texImage->Depth;
+ assert(numPixels > 0);
+ srcBytesPerTexel = gl_bytes_per_pixel(imgFormat, imgType);
+ assert(srcBytesPerTexel > 0);
+
+ if (!texImage->Data) {
+ /* Allocate memory for the texture image data */
+ texImage->Data = (GLubyte *) MALLOC(numPixels * destComponents + EXTRA_BYTE);
+ }
+
+ if (imgFormat == texImage->Format && imgType == GL_UNSIGNED_BYTE) {
+ /* We got lucky! The driver's format and type match Mesa's format. */
+ if (texImage->Data) {
+ MEMCPY(texImage->Data, image, numPixels * destComponents);
+ }
+ }
+ else {
+ /* Convert the texture image from the driver's format to Mesa's
+ * internal format.
+ */
+ const GLint width = texImage->Width;
+ const GLint height = texImage->Height;
+ const GLint depth = texImage->Depth;
+ const GLint destBytesPerRow = width * destComponents * sizeof(GLchan);
+ const GLint srcBytesPerRow = width * srcBytesPerTexel;
+ const GLenum dstType = GL_UNSIGNED_BYTE;
+ const GLenum dstFormat = texImage->Format;
+ const GLubyte *srcPtr = (const GLubyte *) image;
+ GLubyte *destPtr = texImage->Data;
+
+ if (texImage->Format == GL_COLOR_INDEX) {
+ /* color index texture */
+ GLint img, row;
+ assert(imgFormat == GL_COLOR_INDEX);
+ for (img = 0; img < depth; img++) {
+ for (row = 0; row < height; row++) {
+ _mesa_unpack_index_span(ctx, width, dstType, destPtr,
+ imgType, srcPtr, &DefaultPacking, GL_FALSE);
+ destPtr += destBytesPerRow;
+ srcPtr += srcBytesPerRow;
+ }
+ }
+ }
+ else {
+ /* color texture */
+ GLint img, row;
+ for (img = 0; img < depth; img++) {
+ for (row = 0; row < height; row++) {
+ _mesa_unpack_ubyte_color_span(ctx, width, dstFormat, destPtr,
+ imgFormat, imgType, srcPtr, &DefaultPacking, GL_FALSE);
+ destPtr += destBytesPerRow;
+ srcPtr += srcBytesPerRow;
+ }
+ }
+ }
+ }
+
+ if (freeImage)
+ FREE(image);
+}
+
-void gl_GetTexImage( GLcontext *ctx, GLenum target, GLint level, GLenum format,
- GLenum type, GLvoid *pixels )
+void
+_mesa_GetTexImage( GLenum target, GLint level, GLenum format,
+ GLenum type, GLvoid *pixels )
{
+ GET_CURRENT_CONTEXT(ctx);
const struct gl_texture_object *texObj;
+ struct gl_texture_image *texImage;
+ GLboolean discardImage;
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glGetTexImage");
}
if (!pixels)
- return; /* XXX generate an error??? */
+ return;
switch (target) {
case GL_TEXTURE_1D:
return;
}
- if (texObj->Image[level] && texObj->Image[level]->Data) {
- const struct gl_texture_image *texImage = texObj->Image[level];
+ texImage = texObj->Image[level];
+ if (!texImage) {
+ /* invalid mipmap level */
+ return;
+ }
+
+ if (!texImage->Data) {
+ /* try to get the texture image from the device driver */
+ get_teximage_from_driver(ctx, target, level, texObj);
+ discardImage = GL_TRUE;
+ }
+ else {
+ discardImage = GL_FALSE;
+ }
+
+ if (texImage->Data) {
GLint width = texImage->Width;
GLint height = texImage->Height;
GLint row;
assert(dest);
if (texImage->Format == GL_RGBA) {
const GLubyte *src = texImage->Data + row * width * 4 * sizeof(GLubyte);
- gl_pack_rgba_span( ctx, width, (void *) src, format, type, dest,
+ gl_pack_rgba_span( ctx, width, (CONST GLubyte (*)[4]) src,
+ format, type, dest,
&ctx->Pack, GL_TRUE );
}
else {
format, type, dest, &ctx->Pack, GL_TRUE );
}
}
+
+ /* if we got the teximage from the device driver we'll discard it now */
+ if (discardImage) {
+ FREE(texImage->Data);
+ texImage->Data = NULL;
+ }
}
}
-/*
- * Unpack the image data given to glTexSubImage[12]D.
- * This function is just a wrapper for gl_unpack_image() but it does
- * some extra error checking.
- */
-struct gl_image *
-gl_unpack_texsubimage( GLcontext *ctx, GLint width, GLint height,
- GLenum format, GLenum type, const GLvoid *pixels )
+void
+_mesa_TexSubImage1D( GLenum target, GLint level,
+ GLint xoffset, GLsizei width,
+ GLenum format, GLenum type,
+ const GLvoid *pixels )
{
- if (type==GL_BITMAP && format!=GL_COLOR_INDEX) {
- return NULL;
- }
+ GET_CURRENT_CONTEXT(ctx);
+ struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ struct gl_texture_image *destTex;
- if (format==GL_STENCIL_INDEX || format==GL_DEPTH_COMPONENT){
- return NULL;
+ if (subtexture_error_check(ctx, 1, target, level, xoffset, 0, 0,
+ width, 1, 1, format, type)) {
+ return; /* error was detected */
}
- if (gl_sizeof_type(type)<=0) {
- return NULL;
- }
+ destTex = texUnit->CurrentD[1]->Image[level];
+ assert(destTex);
- return gl_unpack_image3D( ctx, width, height, 1, format, type, pixels, &ctx->Unpack );
-}
+ if (width == 0 || !pixels)
+ return; /* no-op, not an error */
-/*
- * Unpack the image data given to glTexSubImage3D.
- * This function is just a wrapper for gl_unpack_image() but it does
- * some extra error checking.
- */
-struct gl_image *
-gl_unpack_texsubimage3D( GLcontext *ctx, GLint width, GLint height,
- GLint depth, GLenum format, GLenum type,
- const GLvoid *pixels )
-{
- if (type==GL_BITMAP && format!=GL_COLOR_INDEX) {
- return NULL;
+ /*
+ * Replace the texture subimage
+ */
+ {
+ const GLint texComponents = components_in_intformat(destTex->Format);
+ const GLenum texFormat = destTex->Format;
+ const GLint xoffsetb = xoffset + destTex->Border;
+ GLubyte *dst = destTex->Data + xoffsetb * texComponents;
+ if (texFormat == GL_COLOR_INDEX) {
+ /* color index texture */
+ const GLvoid *src = gl_pixel_addr_in_image(&ctx->Unpack, pixels,
+ width, 1, format, type, 0, 0, 0);
+ _mesa_unpack_index_span(ctx, width, GL_UNSIGNED_BYTE, dst,
+ type, src, &ctx->Unpack, GL_TRUE);
+ }
+ else {
+ /* color texture */
+ const GLvoid *src = gl_pixel_addr_in_image(&ctx->Unpack, pixels,
+ width, 1, format, type, 0, 0, 0);
+ _mesa_unpack_ubyte_color_span(ctx, width, texFormat, dst,
+ format, type, src, &ctx->Unpack, GL_TRUE);
+ }
}
- if (format==GL_STENCIL_INDEX || format==GL_DEPTH_COMPONENT){
- return NULL;
- }
+ gl_put_texobj_on_dirty_list( ctx, texUnit->CurrentD[1] );
- if (gl_sizeof_type(type)<=0) {
- return NULL;
- }
-
- return gl_unpack_image3D( ctx, width, height, depth, format, type, pixels,
- &ctx->Unpack );
-}
-
-
-
-void gl_TexSubImage1D( GLcontext *ctx,
- GLenum target, GLint level, GLint xoffset,
- GLsizei width, GLenum format, GLenum type,
- struct gl_image *image )
-{
- struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
- struct gl_texture_image *destTex;
-
- if (target!=GL_TEXTURE_1D) {
- gl_error( ctx, GL_INVALID_ENUM, "glTexSubImage1D(target)" );
- return;
- }
- if (level<0 || level>=ctx->Const.MaxTextureLevels) {
- gl_error( ctx, GL_INVALID_ENUM, "glTexSubImage1D(level)" );
- return;
- }
-
- destTex = texUnit->CurrentD[1]->Image[level];
- if (!destTex) {
- gl_error( ctx, GL_INVALID_OPERATION, "glTexSubImage1D" );
- return;
- }
-
- if (xoffset < -((GLint)destTex->Border)) {
- gl_error( ctx, GL_INVALID_VALUE, "glTexSubImage1D(xoffset)" );
- return;
- }
- if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) {
- gl_error( ctx, GL_INVALID_VALUE, "glTexSubImage1D(xoffset+width)" );
- return;
- }
-
- if (image) {
- /* unpacking must have been error-free */
- GLint texcomponents = components_in_intformat(destTex->Format);
-
- if (image->Type==GL_UNSIGNED_BYTE && texcomponents==image->Components) {
- /* Simple case, just byte copy image data into texture image */
- /* row by row. */
- GLubyte *dst = destTex->Data + texcomponents * xoffset;
- GLubyte *src = (GLubyte *) image->Data;
- MEMCPY( dst, src, width * texcomponents );
- }
- else {
- /* General case, convert image pixels into texels, scale, bias, etc */
- struct gl_texture_image *subTexImg = image_to_texture(ctx, image,
- destTex->IntFormat, destTex->Border);
- GLubyte *dst = destTex->Data + texcomponents * xoffset;
- GLubyte *src = subTexImg->Data;
- MEMCPY( dst, src, width * texcomponents );
- gl_free_texture_image(subTexImg);
- }
-
- /* if the image's reference count is zero, delete it now */
- if (image->RefCount==0) {
- gl_free_image(image);
- }
-
- gl_put_texobj_on_dirty_list( ctx, texUnit->CurrentD[1] );
-
- /* tell driver about change */
- if (ctx->Driver.TexSubImage) {
- (*ctx->Driver.TexSubImage)( ctx, GL_TEXTURE_1D,
- texUnit->CurrentD[1], level,
- xoffset,0,width,1,
- texUnit->CurrentD[1]->Image[level]->IntFormat,
- destTex );
- }
- else {
- if (ctx->Driver.TexImage) {
- (*ctx->Driver.TexImage)( ctx, GL_TEXTURE_1D, texUnit->CurrentD[1], level,
- texUnit->CurrentD[1]->Image[level]->IntFormat,
- destTex );
- }
- }
+ /*
+ * Inform device driver of texture image change.
+ */
+ if (ctx->Driver.TexSubImage) {
+ (*ctx->Driver.TexSubImage)(ctx, GL_TEXTURE_1D, texUnit->CurrentD[1],
+ level, xoffset, 0, width, 1,
+ texUnit->CurrentD[1]->Image[level]->IntFormat,
+ destTex );
}
else {
- /* if no image, an error must have occured, do more testing now */
- GLint components, size;
-
- if (width<0) {
- gl_error( ctx, GL_INVALID_VALUE, "glTexSubImage1D(width)" );
- return;
- }
- if (type==GL_BITMAP && format!=GL_COLOR_INDEX) {
- gl_error( ctx, GL_INVALID_ENUM, "glTexSubImage1D(format)" );
- return;
- }
- components = components_in_intformat( format );
- if (components<0 || format==GL_STENCIL_INDEX
- || format==GL_DEPTH_COMPONENT){
- gl_error( ctx, GL_INVALID_ENUM, "glTexSubImage1D(format)" );
- return;
- }
- size = gl_sizeof_type( type );
- if (size<=0) {
- gl_error( ctx, GL_INVALID_ENUM, "glTexSubImage1D(type)" );
- return;
+ if (ctx->Driver.TexImage) {
+ (*ctx->Driver.TexImage)(ctx, GL_TEXTURE_1D, texUnit->CurrentD[1],
+ level,
+ texUnit->CurrentD[1]->Image[level]->IntFormat,
+ destTex );
}
- /* if we get here, probably ran out of memory during unpacking */
- gl_error( ctx, GL_OUT_OF_MEMORY, "glTexSubImage1D" );
}
}
-
-void gl_TexSubImage2D( GLcontext *ctx,
- GLenum target, GLint level,
- GLint xoffset, GLint yoffset,
- GLsizei width, GLsizei height,
- GLenum format, GLenum type,
- struct gl_image *image )
+void
+_mesa_TexSubImage2D( GLenum target, GLint level,
+ GLint xoffset, GLint yoffset,
+ GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
+ const GLvoid *pixels )
{
+ GET_CURRENT_CONTEXT(ctx);
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
struct gl_texture_image *destTex;
- if (target!=GL_TEXTURE_2D) {
- gl_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
- return;
- }
- if (level<0 || level>=ctx->Const.MaxTextureLevels) {
- gl_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(level)" );
- return;
+ if (subtexture_error_check(ctx, 2, target, level, xoffset, yoffset, 0,
+ width, height, 1, format, type)) {
+ return; /* error was detected */
}
destTex = texUnit->CurrentD[2]->Image[level];
- if (!destTex) {
- gl_error( ctx, GL_INVALID_OPERATION, "glTexSubImage2D" );
- return;
- }
+ assert(destTex);
+
+ if (width == 0 || height == 0 || !pixels)
+ return; /* no-op, not an error */
- if (xoffset < -((GLint)destTex->Border)) {
- gl_error( ctx, GL_INVALID_VALUE, "glTexSubImage2D(xoffset)" );
- return;
- }
- if (yoffset < -((GLint)destTex->Border)) {
- gl_error( ctx, GL_INVALID_VALUE, "glTexSubImage2D(yoffset)" );
- return;
- }
- if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) {
- gl_error( ctx, GL_INVALID_VALUE, "glTexSubImage2D(xoffset+width)" );
- return;
- }
- if (yoffset + height > (GLint) (destTex->Height + destTex->Border)) {
- gl_error( ctx, GL_INVALID_VALUE, "glTexSubImage2D(yoffset+height)" );
- return;
- }
- if (image) {
- /* unpacking must have been error-free */
- GLint texcomponents = components_in_intformat(destTex->Format);
-
- if (image->Type==GL_UNSIGNED_BYTE && texcomponents==image->Components) {
- /* Simple case, just byte copy image data into texture image */
- /* row by row. */
- GLubyte *dst = destTex->Data
- + (yoffset * destTex->Width + xoffset) * texcomponents;
- GLubyte *src = (GLubyte *) image->Data;
- GLint j;
- for (j=0;j<height;j++) {
- MEMCPY( dst, src, width * texcomponents );
- dst += destTex->Width * texcomponents * sizeof(GLubyte);
- src += width * texcomponents * sizeof(GLubyte);
+ /*
+ * Replace the texture subimage
+ */
+ {
+ const GLint texComponents = components_in_intformat(destTex->Format);
+ const GLenum texFormat = destTex->Format;
+ const GLint xoffsetb = xoffset + destTex->Border;
+ const GLint yoffsetb = yoffset + destTex->Border;
+ GLubyte *dst = destTex->Data
+ + (yoffsetb * destTex->Width + xoffsetb) * texComponents;
+ if (texFormat == GL_COLOR_INDEX) {
+ /* color index texture */
+ const GLint stride = destTex->Width * sizeof(GLubyte);
+ GLint row;
+ for (row = 0; row < height; row++) {
+ const GLvoid *src = gl_pixel_addr_in_image(&ctx->Unpack, pixels,
+ width, height, format, type, 0, row, 0);
+ _mesa_unpack_index_span(ctx, width, GL_UNSIGNED_BYTE, dst,
+ type, src, &ctx->Unpack, GL_TRUE);
+ dst += stride;
}
}
else {
- /* General case, convert image pixels into texels, scale, bias, etc */
- struct gl_texture_image *subTexImg = image_to_texture(ctx, image,
- destTex->IntFormat, destTex->Border);
- GLubyte *dst = destTex->Data
- + (yoffset * destTex->Width + xoffset) * texcomponents;
- GLubyte *src = subTexImg->Data;
- GLint j;
- for (j=0;j<height;j++) {
- MEMCPY( dst, src, width * texcomponents );
- dst += destTex->Width * texcomponents * sizeof(GLubyte);
- src += width * texcomponents * sizeof(GLubyte);
+ /* color texture */
+ const GLint stride = destTex->Width * texComponents * sizeof(GLubyte);
+ GLint row;
+ for (row = 0; row < height; row++) {
+ const GLvoid *src = gl_pixel_addr_in_image(&ctx->Unpack, pixels,
+ width, height, format, type, 0, row, 0);
+ _mesa_unpack_ubyte_color_span(ctx, width, texFormat, dst,
+ format, type, src, &ctx->Unpack, GL_TRUE);
+ dst += stride;
}
- gl_free_texture_image(subTexImg);
- }
-
- /* if the image's reference count is zero, delete it now */
- if (image->RefCount==0) {
- gl_free_image(image);
}
+ }
- gl_put_texobj_on_dirty_list( ctx, texUnit->CurrentD[2] );
+ gl_put_texobj_on_dirty_list( ctx, texUnit->CurrentD[2] );
- /* tell driver about change */
- if (ctx->Driver.TexSubImage) {
- (*ctx->Driver.TexSubImage)( ctx, GL_TEXTURE_2D, texUnit->CurrentD[2], level,
- xoffset, yoffset, width, height,
- texUnit->CurrentD[2]->Image[level]->IntFormat,
- destTex );
- }
- else {
- if (ctx->Driver.TexImage) {
- (*ctx->Driver.TexImage)( ctx, GL_TEXTURE_2D, texUnit->CurrentD[2], level,
- texUnit->CurrentD[2]->Image[level]->IntFormat,
- destTex );
- }
- }
+ /*
+ * Inform device driver of texture image change.
+ */
+ if (ctx->Driver.TexSubImage) {
+ (*ctx->Driver.TexSubImage)(ctx, GL_TEXTURE_2D, texUnit->CurrentD[2],
+ level, xoffset, yoffset, width, height,
+ texUnit->CurrentD[2]->Image[level]->IntFormat,
+ destTex );
}
else {
- /* if no image, an error must have occured, do more testing now */
- GLint components, size;
-
- if (width<0) {
- gl_error( ctx, GL_INVALID_VALUE, "glTexSubImage2D(width)" );
- return;
- }
- if (height<0) {
- gl_error( ctx, GL_INVALID_VALUE, "glTexSubImage2D(height)" );
- return;
- }
- if (type==GL_BITMAP && format!=GL_COLOR_INDEX) {
- gl_error( ctx, GL_INVALID_ENUM, "glTexSubImage1D(format)" );
- return;
- }
- components = gl_components_in_format( format );
- if (components<0 || format==GL_STENCIL_INDEX
- || format==GL_DEPTH_COMPONENT){
- gl_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(format)" );
- return;
- }
- size = gl_sizeof_packed_type( type );
- if (size<=0) {
- gl_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(type)" );
- return;
+ if (ctx->Driver.TexImage) {
+ (*ctx->Driver.TexImage)(ctx, GL_TEXTURE_2D, texUnit->CurrentD[2],
+ level,
+ texUnit->CurrentD[2]->Image[level]->IntFormat,
+ destTex );
}
- /* if we get here, probably ran out of memory during unpacking */
- gl_error( ctx, GL_OUT_OF_MEMORY, "glTexSubImage2D" );
}
}
-void gl_TexSubImage3DEXT( GLcontext *ctx,
- GLenum target, GLint level,
- GLint xoffset, GLint yoffset, GLint zoffset,
- GLsizei width, GLsizei height, GLsizei depth,
- GLenum format, GLenum type,
- struct gl_image *image )
+void
+_mesa_TexSubImage3D( GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLenum format, GLenum type,
+ const GLvoid *pixels )
{
+ GET_CURRENT_CONTEXT(ctx);
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
struct gl_texture_image *destTex;
- if (target!=GL_TEXTURE_3D_EXT) {
- gl_error( ctx, GL_INVALID_ENUM, "glTexSubImage3DEXT(target)" );
- return;
- }
- if (level<0 || level>=ctx->Const.MaxTextureLevels) {
- gl_error( ctx, GL_INVALID_ENUM, "glTexSubImage3DEXT(level)" );
- return;
+ if (subtexture_error_check(ctx, 3, target, level, xoffset, yoffset, zoffset,
+ width, height, depth, format, type)) {
+ return; /* error was detected */
}
destTex = texUnit->CurrentD[3]->Image[level];
- if (!destTex) {
- gl_error( ctx, GL_INVALID_OPERATION, "glTexSubImage3DEXT" );
- return;
- }
+ assert(destTex);
- if (xoffset < -((GLint)destTex->Border)) {
- gl_error( ctx, GL_INVALID_VALUE, "glTexSubImage3DEXT(xoffset)" );
- return;
- }
- if (yoffset < -((GLint)destTex->Border)) {
- gl_error( ctx, GL_INVALID_VALUE, "glTexSubImage3DEXT(yoffset)" );
- return;
- }
- if (zoffset < -((GLint)destTex->Border)) {
- gl_error( ctx, GL_INVALID_VALUE, "glTexSubImage3DEXT(zoffset)" );
- return;
- }
- if (xoffset + width > (GLint) (destTex->Width+destTex->Border)) {
- gl_error( ctx, GL_INVALID_VALUE, "glTexSubImage3DEXT(xoffset+width)" );
- return;
- }
- if (yoffset + height > (GLint) (destTex->Height+destTex->Border)) {
- gl_error( ctx, GL_INVALID_VALUE, "glTexSubImage3DEXT(yoffset+height)" );
- return;
- }
- if (zoffset + depth > (GLint) (destTex->Depth+destTex->Border)) {
- gl_error( ctx, GL_INVALID_VALUE, "glTexSubImage3DEXT(zoffset+depth)" );
- return;
- }
+ if (width == 0 || height == 0 || height == 0 || !pixels)
+ return; /* no-op, not an error */
- if (image) {
- /* unpacking must have been error-free */
- GLint texcomponents = components_in_intformat(destTex->Format);
+ /*
+ * Replace the texture subimage
+ */
+ {
+ const GLint texComponents = components_in_intformat(destTex->Format);
+ const GLenum texFormat = destTex->Format;
+ const GLint xoffsetb = xoffset + destTex->Border;
+ const GLint yoffsetb = yoffset + destTex->Border;
+ const GLint zoffsetb = zoffset + destTex->Border;
GLint dstRectArea = destTex->Width * destTex->Height;
- GLint srcRectArea = width * height;
-
- if (image->Type==GL_UNSIGNED_BYTE && texcomponents==image->Components) {
- /* Simple case, just byte copy image data into texture image */
- /* row by row. */
- GLubyte *dst = destTex->Data
- + (zoffset * dstRectArea + yoffset * destTex->Width + xoffset)
- * texcomponents;
- GLubyte *src = (GLubyte *) image->Data;
- GLint j, k;
- for(k=0;k<depth; k++) {
- for (j=0;j<height;j++) {
- MEMCPY( dst, src, width * texcomponents );
- dst += destTex->Width * texcomponents;
- src += width * texcomponents;
- }
- dst += dstRectArea * texcomponents * sizeof(GLubyte);
- src += srcRectArea * texcomponents * sizeof(GLubyte);
+ GLubyte *dst = destTex->Data
+ + (zoffsetb * dstRectArea + yoffsetb * destTex->Width + xoffsetb)
+ * texComponents;
+
+ if (texFormat == GL_COLOR_INDEX) {
+ /* color index texture */
+ const GLint stride = destTex->Width * sizeof(GLubyte);
+ GLint img, row;
+ for (img = 0; img < depth; img++) {
+ for (row = 0; row < height; row++) {
+ const GLvoid *src = gl_pixel_addr_in_image(&ctx->Unpack, pixels,
+ width, height, format, type, img, row, 0);
+ _mesa_unpack_index_span(ctx, width, GL_UNSIGNED_BYTE, dst,
+ type, src, &ctx->Unpack, GL_TRUE);
+ dst += stride;
+ }
}
}
else {
- /* General case, convert image pixels into texels, scale, bias, etc */
- struct gl_texture_image *subTexImg = image_to_texture(ctx, image,
- destTex->IntFormat, destTex->Border);
- GLubyte *dst = destTex->Data
- + (zoffset * dstRectArea + yoffset * destTex->Width + xoffset)
- * texcomponents;
- GLubyte *src = subTexImg->Data;
- GLint j, k;
- for(k=0;k<depth; k++) {
- for (j=0;j<height;j++) {
- MEMCPY( dst, src, width * texcomponents );
- dst += destTex->Width * texcomponents;
- src += width * texcomponents;
- }
- dst += dstRectArea * texcomponents * sizeof(GLubyte);
- src += srcRectArea * texcomponents * sizeof(GLubyte);
+ /* color texture */
+ const GLint stride = destTex->Width * texComponents * sizeof(GLubyte);
+ GLint img, row;
+ for (img = 0; img < depth; img++) {
+ for (row = 0; row < height; row++) {
+ const GLvoid *src = gl_pixel_addr_in_image(&ctx->Unpack, pixels,
+ width, height, format, type, img, row, 0);
+ _mesa_unpack_ubyte_color_span(ctx, width, texFormat, dst,
+ format, type, src, &ctx->Unpack, GL_TRUE);
+ dst += stride;
+ }
}
- gl_free_texture_image(subTexImg);
- }
- /* if the image's reference count is zero, delete it now */
- if (image->RefCount==0) {
- gl_free_image(image);
- }
-
- gl_put_texobj_on_dirty_list( ctx, texUnit->CurrentD[3] );
-
- /* tell driver about change */
- if (ctx->Driver.TexImage) {
- (*ctx->Driver.TexImage)( ctx, GL_TEXTURE_3D_EXT, texUnit->CurrentD[3],
- level, texUnit->CurrentD[3]->Image[level]->IntFormat,
- destTex );
}
}
- else {
- /* if no image, an error must have occured, do more testing now */
- GLint components, size;
- if (width<0) {
- gl_error( ctx, GL_INVALID_VALUE, "glTexSubImage3DEXT(width)" );
- return;
- }
- if (height<0) {
- gl_error( ctx, GL_INVALID_VALUE, "glTexSubImage3DEXT(height)" );
- return;
- }
- if (depth<0) {
- gl_error( ctx, GL_INVALID_VALUE, "glTexSubImage3DEXT(depth)" );
- return;
- }
- if (type==GL_BITMAP && format!=GL_COLOR_INDEX) {
- gl_error( ctx, GL_INVALID_ENUM, "glTexSubImage3DEXT(format)" );
- return;
- }
- components = components_in_intformat( format );
- if (components<0 || format==GL_STENCIL_INDEX
- || format==GL_DEPTH_COMPONENT){
- gl_error( ctx, GL_INVALID_ENUM, "glTexSubImage3DEXT(format)" );
- return;
- }
- size = gl_sizeof_type( type );
- if (size<=0) {
- gl_error( ctx, GL_INVALID_ENUM, "glTexSubImage3DEXT(type)" );
- return;
- }
- /* if we get here, probably ran out of memory during unpacking */
- gl_error( ctx, GL_OUT_OF_MEMORY, "glTexSubImage3DEXT" );
- }
+ gl_put_texobj_on_dirty_list( ctx, texUnit->CurrentD[1] );
+
+ /*
+ * Inform device driver of texture image change.
+ */
+ /* XXX todo */
}
/*
* Read an RGBA image from the frame buffer.
+ * This is used by glCopyTexSubImage[12]D().
* Input: ctx - the context
* x, y - lower left corner
* width, height - size of region to read
- * format - one of GL_RED, GL_RGB, GL_LUMINANCE, etc.
- * Return: gl_image pointer or NULL if out of memory
+ * Return: pointer to block of GL_RGBA, GLubyte data.
*/
-static struct gl_image *read_color_image( GLcontext *ctx, GLint x, GLint y,
- GLsizei width, GLsizei height,
- GLenum format )
+static GLubyte *
+read_color_image( GLcontext *ctx, GLint x, GLint y,
+ GLsizei width, GLsizei height )
{
- struct gl_image *image;
- GLubyte *imgptr;
- GLint components;
- GLint i, j;
-
- components = components_in_intformat( format );
+ GLint stride, i;
+ GLubyte *image, *dst;
- /*
- * Allocate image struct and image data buffer
- */
- image = GL_ALLOC_STRUCT( gl_image );
- if (image) {
- image->Width = width;
- image->Height = height;
- image->Depth = 1;
- image->Components = components;
- image->Format = format;
- image->Type = GL_UNSIGNED_BYTE;
- image->RefCount = 0;
- image->Data = (GLubyte *) GL_ALLOC( width * height * components );
- if (!image->Data) {
- GL_FREE(image);
- return NULL;
- }
- }
- else {
+ image = (GLubyte *) MALLOC(width * height * 4 * sizeof(GLubyte));
+ if (!image)
return NULL;
- }
-
- imgptr = (GLubyte *) image->Data;
/* Select buffer to read from */
- (void) (*ctx->Driver.SetBuffer)( ctx, ctx->Pixel.DriverReadBuffer );
-
- for (j=0;j<height;j++) {
- GLubyte rgba[MAX_WIDTH][4];
- gl_read_rgba_span( ctx, width, x, y+j, rgba );
+ (*ctx->Driver.SetReadBuffer)( ctx, ctx->ReadBuffer,
+ ctx->Pixel.DriverReadBuffer );
- switch (format) {
- case GL_ALPHA:
- for (i=0;i<width;i++) {
- *imgptr++ = rgba[i][ACOMP];
- }
- break;
- case GL_LUMINANCE:
- for (i=0;i<width;i++) {
- *imgptr++ = rgba[i][RCOMP];
- }
- break;
- case GL_LUMINANCE_ALPHA:
- for (i=0;i<width;i++) {
- *imgptr++ = rgba[i][RCOMP];
- *imgptr++ = rgba[i][ACOMP];
- }
- break;
- case GL_INTENSITY:
- for (i=0;i<width;i++) {
- *imgptr++ = rgba[i][RCOMP];
- }
- break;
- case GL_RGB:
- for (i=0;i<width;i++) {
- *imgptr++ = rgba[i][RCOMP];
- *imgptr++ = rgba[i][GCOMP];
- *imgptr++ = rgba[i][BCOMP];
- }
- break;
- case GL_RGBA:
- for (i=0;i<width;i++) {
- *imgptr++ = rgba[i][RCOMP];
- *imgptr++ = rgba[i][GCOMP];
- *imgptr++ = rgba[i][BCOMP];
- *imgptr++ = rgba[i][ACOMP];
- }
- break;
- default:
- gl_problem(ctx, "Bad format in read_color_image");
- break;
- } /*switch*/
-
- } /*for*/
+ dst = image;
+ stride = width * 4 * sizeof(GLubyte);
+ for (i = 0; i < height; i++) {
+ gl_read_rgba_span( ctx, ctx->ReadBuffer, width, x, y + i,
+ (GLubyte (*)[4]) dst );
+ dst += stride;
+ }
- /* Restore drawing buffer */
- (void) (*ctx->Driver.SetBuffer)( ctx, ctx->Color.DriverDrawBuffer );
+ /* Read from draw buffer (the default) */
+ (*ctx->Driver.SetReadBuffer)( ctx, ctx->DrawBuffer,
+ ctx->Color.DriverDrawBuffer );
return image;
}
-
-void gl_CopyTexImage1D( GLcontext *ctx,
- GLenum target, GLint level,
- GLenum internalformat,
- GLint x, GLint y,
- GLsizei width, GLint border )
+void
+_mesa_CopyTexImage1D( GLenum target, GLint level,
+ GLenum internalFormat,
+ GLint x, GLint y,
+ GLsizei width, GLint border )
{
- GLint format;
- struct gl_image *teximage;
-
+ GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glCopyTexImage1D");
- if (target!=GL_TEXTURE_1D) {
- gl_error( ctx, GL_INVALID_ENUM, "glCopyTexImage1D(target)" );
- return;
- }
- if (level<0 || level>=ctx->Const.MaxTextureLevels) {
- gl_error( ctx, GL_INVALID_VALUE, "glCopyTexImage1D(level)" );
- return;
- }
- if (border!=0 && border!=1) {
- gl_error( ctx, GL_INVALID_VALUE, "glCopyTexImage1D(border)" );
- return;
- }
- if (width < 2*border || width > 2 + ctx->Const.MaxTextureSize || width<0) {
- gl_error( ctx, GL_INVALID_VALUE, "glCopyTexImage1D(width)" );
- return;
- }
- format = decode_internal_format( internalformat );
- if (format<0 || (internalformat>=1 && internalformat<=4)) {
- gl_error( ctx, GL_INVALID_VALUE, "glCopyTexImage1D(format)" );
- return;
- }
- teximage = read_color_image( ctx, x, y, width, 1, (GLenum) format );
- if (!teximage) {
- gl_error( ctx, GL_OUT_OF_MEMORY, "glCopyTexImage1D" );
+ if (copytexture_error_check(ctx, 1, target, level, internalFormat,
+ width, 1, border))
return;
- }
-
- gl_TexImage1D( ctx, target, level, internalformat, width,
- border, GL_RGBA, GL_UNSIGNED_BYTE, teximage );
- /* teximage was freed in gl_TexImage1D */
+ if (ctx->Pixel.MapColorFlag || ctx->Pixel.ScaleOrBiasRGBA
+ || !ctx->Driver.CopyTexImage1D
+ || !(*ctx->Driver.CopyTexImage1D)(ctx, target, level,
+ internalFormat, x, y, width, border))
+ {
+ GLubyte *image = read_color_image( ctx, x, y, width, 1 );
+ if (!image) {
+ gl_error( ctx, GL_OUT_OF_MEMORY, "glCopyTexImage1D" );
+ return;
+ }
+ (*ctx->Exec->TexImage1D)( target, level, internalFormat, width,
+ border, GL_RGBA, GL_UNSIGNED_BYTE, image );
+ FREE(image);
+ }
}
-void gl_CopyTexImage2D( GLcontext *ctx,
- GLenum target, GLint level, GLenum internalformat,
- GLint x, GLint y, GLsizei width, GLsizei height,
- GLint border )
+void
+_mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat,
+ GLint x, GLint y, GLsizei width, GLsizei height,
+ GLint border )
{
- GLint format;
- struct gl_image *teximage;
-
+ GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glCopyTexImage2D");
- if (target!=GL_TEXTURE_2D) {
- gl_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
- return;
- }
- if (level<0 || level>=ctx->Const.MaxTextureLevels) {
- gl_error( ctx, GL_INVALID_VALUE, "glCopyTexImage2D(level)" );
- return;
- }
- if (border!=0 && border!=1) {
- gl_error( ctx, GL_INVALID_VALUE, "glCopyTexImage2D(border)" );
- return;
- }
- if (width<2*border || width>2+ctx->Const.MaxTextureSize || width<0) {
- gl_error( ctx, GL_INVALID_VALUE, "glCopyTexImage2D(width)" );
- return;
- }
- if (height<2*border || height>2+ctx->Const.MaxTextureSize || height<0) {
- gl_error( ctx, GL_INVALID_VALUE, "glCopyTexImage2D(height)" );
- return;
- }
- format = decode_internal_format( internalformat );
- if (format<0 || (internalformat>=1 && internalformat<=4)) {
- gl_error( ctx, GL_INVALID_VALUE, "glCopyTexImage2D(format)" );
- return;
- }
- teximage = read_color_image( ctx, x, y, width, height, (GLenum) format );
- if (!teximage) {
- gl_error( ctx, GL_OUT_OF_MEMORY, "glCopyTexImage2D" );
+ if (copytexture_error_check(ctx, 2, target, level, internalFormat,
+ width, height, border))
return;
- }
- gl_TexImage2D( ctx, target, level, internalformat, width, height,
- border, GL_RGBA, GL_UNSIGNED_BYTE, teximage );
-
- /* teximage was freed in gl_TexImage2D */
+ if (ctx->Pixel.MapColorFlag || ctx->Pixel.ScaleOrBiasRGBA
+ || !ctx->Driver.CopyTexImage2D
+ || !(*ctx->Driver.CopyTexImage2D)(ctx, target, level,
+ internalFormat, x, y, width, height, border))
+ {
+ GLubyte *image = read_color_image( ctx, x, y, width, height );
+ if (!image) {
+ gl_error( ctx, GL_OUT_OF_MEMORY, "glCopyTexImage2D" );
+ return;
+ }
+ (ctx->Exec->TexImage2D)( target, level, internalFormat, width,
+ height, border, GL_RGBA, GL_UNSIGNED_BYTE, image );
+ FREE(image);
+ }
}
-
/*
* Do the work of glCopyTexSubImage[123]D.
- * TODO: apply pixel bias scale and mapping.
*/
-static void copy_tex_sub_image( GLcontext *ctx, struct gl_texture_image *dest,
- GLint width, GLint height,
- GLint srcx, GLint srcy,
- GLint dstx, GLint dsty, GLint zoffset )
+static void
+copy_tex_sub_image( GLcontext *ctx, struct gl_texture_image *dest,
+ GLint width, GLint height,
+ GLint srcx, GLint srcy,
+ GLint dstx, GLint dsty, GLint dstz )
{
- GLint i, j;
+ static struct gl_pixelstore_attrib packing = {
+ 1, /* Alignment */
+ 0, /* RowLength */
+ 0, /* SkipPixels */
+ 0, /* SkipRows */
+ 0, /* ImageHeight */
+ 0, /* SkipImages */
+ GL_FALSE, /* SwapBytes */
+ GL_FALSE /* LsbFirst */
+ };
+
+ GLint i;
GLint format, components, rectarea;
- GLint texwidth, texheight;
+ GLint texwidth, texheight, zoffset;
+ /* dst[xyz] may be negative if we have a texture border! */
+ dstx += dest->Border;
+ dsty += dest->Border;
+ dstz += dest->Border;
texwidth = dest->Width;
texheight = dest->Height;
rectarea = texwidth * texheight;
- zoffset *= rectarea;
+ zoffset = dstz * rectarea;
format = dest->Format;
components = components_in_intformat( format );
/* Select buffer to read from */
- (void) (*ctx->Driver.SetBuffer)( ctx, ctx->Pixel.DriverReadBuffer );
+ (*ctx->Driver.SetReadBuffer)( ctx, ctx->ReadBuffer,
+ ctx->Pixel.DriverReadBuffer );
- for (j=0;j<height;j++) {
+ for (i = 0;i < height; i++) {
GLubyte rgba[MAX_WIDTH][4];
- GLubyte *texptr;
-
- gl_read_rgba_span( ctx, width, srcx, srcy+j, rgba );
-
- texptr = dest->Data + ( zoffset + (dsty+j) * texwidth + dstx) * components;
-
- switch (format) {
- case GL_ALPHA:
- for (i=0;i<width;i++) {
- *texptr++ = rgba[i][ACOMP];
- }
- break;
- case GL_LUMINANCE:
- for (i=0;i<width;i++) {
- *texptr++ = rgba[i][RCOMP];
- }
- break;
- case GL_LUMINANCE_ALPHA:
- for (i=0;i<width;i++) {
- *texptr++ = rgba[i][RCOMP];
- *texptr++ = rgba[i][ACOMP];
- }
- break;
- case GL_INTENSITY:
- for (i=0;i<width;i++) {
- *texptr++ = rgba[i][RCOMP];
- }
- break;
- case GL_RGB:
- for (i=0;i<width;i++) {
- *texptr++ = rgba[i][RCOMP];
- *texptr++ = rgba[i][GCOMP];
- *texptr++ = rgba[i][BCOMP];
- }
- break;
- case GL_RGBA:
- for (i=0;i<width;i++) {
- *texptr++ = rgba[i][RCOMP];
- *texptr++ = rgba[i][GCOMP];
- *texptr++ = rgba[i][BCOMP];
- *texptr++ = rgba[i][ACOMP];
- }
- break;
- } /*switch*/
- } /*for*/
-
+ GLubyte *dst;
+ gl_read_rgba_span( ctx, ctx->ReadBuffer, width, srcx, srcy + i, rgba );
+ dst = dest->Data + ( zoffset + (dsty+i) * texwidth + dstx) * components;
+ _mesa_unpack_ubyte_color_span(ctx, width, format, dst,
+ GL_RGBA, GL_UNSIGNED_BYTE, rgba,
+ &packing, GL_TRUE);
+ }
- /* Restore drawing buffer */
- (void) (*ctx->Driver.SetBuffer)( ctx, ctx->Color.DriverDrawBuffer );
+ /* Read from draw buffer (the default) */
+ (*ctx->Driver.SetReadBuffer)( ctx, ctx->DrawBuffer,
+ ctx->Color.DriverDrawBuffer );
}
-void gl_CopyTexSubImage1D( GLcontext *ctx,
- GLenum target, GLint level,
- GLint xoffset, GLint x, GLint y, GLsizei width )
+void
+_mesa_CopyTexSubImage1D( GLenum target, GLint level,
+ GLint xoffset, GLint x, GLint y, GLsizei width )
{
- struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
- struct gl_texture_image *teximage;
-
+ GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glCopyTexSubImage1D");
- if (target!=GL_TEXTURE_1D) {
- gl_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage1D(target)" );
- return;
- }
- if (level<0 || level>=ctx->Const.MaxTextureLevels) {
- gl_error( ctx, GL_INVALID_VALUE, "glCopyTexSubImage1D(level)" );
- return;
- }
- if (width<0) {
- gl_error( ctx, GL_INVALID_VALUE, "glCopyTexSubImage1D(width)" );
- return;
- }
- teximage = texUnit->CurrentD[1]->Image[level];
+ if (copytexsubimage_error_check(ctx, 1, target, level,
+ xoffset, 0, 0, width, 1))
+ return;
- if (teximage) {
- if (xoffset < -((GLint)teximage->Border)) {
- gl_error( ctx, GL_INVALID_VALUE, "glCopyTexSubImage1D(xoffset)" );
- return;
- }
- /* NOTE: we're adding the border here, not subtracting! */
- if (xoffset+width > (GLint) (teximage->Width+teximage->Border)) {
- gl_error( ctx, GL_INVALID_VALUE,
- "glCopyTexSubImage1D(xoffset+width)" );
- return;
- }
+ if (ctx->Pixel.MapColorFlag || ctx->Pixel.ScaleOrBiasRGBA
+ || !ctx->Driver.CopyTexSubImage1D
+ || !(*ctx->Driver.CopyTexSubImage1D)(ctx, target, level,
+ xoffset, x, y, width)) {
+ struct gl_texture_unit *texUnit;
+ struct gl_texture_image *teximage;
+ texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ teximage = texUnit->CurrentD[1]->Image[level];
+ assert(teximage);
if (teximage->Data) {
- copy_tex_sub_image( ctx, teximage, width, 1, x, y, xoffset, 0, 0 );
-
- /* tell driver about change */
- if (ctx->Driver.TexSubImage) {
- (*ctx->Driver.TexSubImage)( ctx, GL_TEXTURE_1D,
- texUnit->CurrentD[1], level,
- xoffset,0,width,1,
- teximage->IntFormat,
- teximage );
- }
- else {
- if (ctx->Driver.TexImage) {
- (*ctx->Driver.TexImage)( ctx, GL_TEXTURE_1D, texUnit->CurrentD[1], level,
- teximage->IntFormat,
- teximage );
- }
- }
+ copy_tex_sub_image(ctx, teximage, width, 1, x, y, xoffset, 0, 0);
+ /* tell driver about the change */
+ if (ctx->Driver.TexImage) {
+ (*ctx->Driver.TexImage)( ctx, GL_TEXTURE_1D,
+ texUnit->CurrentD[1],
+ level, teximage->IntFormat, teximage );
+ }
}
}
- else {
- gl_error( ctx, GL_INVALID_OPERATION, "glCopyTexSubImage1D" );
- }
}
-void gl_CopyTexSubImage2D( GLcontext *ctx,
- GLenum target, GLint level,
- GLint xoffset, GLint yoffset,
- GLint x, GLint y, GLsizei width, GLsizei height )
+void
+_mesa_CopyTexSubImage2D( GLenum target, GLint level,
+ GLint xoffset, GLint yoffset,
+ GLint x, GLint y, GLsizei width, GLsizei height )
{
- struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
- struct gl_texture_image *teximage;
-
+ GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glCopyTexSubImage2D");
- if (target!=GL_TEXTURE_2D) {
- gl_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
- return;
- }
- if (level<0 || level>=ctx->Const.MaxTextureLevels) {
- gl_error( ctx, GL_INVALID_VALUE, "glCopyTexSubImage2D(level)" );
- return;
- }
- if (width<0) {
- gl_error( ctx, GL_INVALID_VALUE, "glCopyTexSubImage2D(width)" );
- return;
- }
- if (height<0) {
- gl_error( ctx, GL_INVALID_VALUE, "glCopyTexSubImage2D(height)" );
- return;
- }
- teximage = texUnit->CurrentD[2]->Image[level];
-
- if (teximage) {
- if (xoffset < -((GLint)teximage->Border)) {
- gl_error( ctx, GL_INVALID_VALUE, "glCopyTexSubImage2D(xoffset)" );
- return;
- }
- if (yoffset < -((GLint)teximage->Border)) {
- gl_error( ctx, GL_INVALID_VALUE, "glCopyTexSubImage2D(yoffset)" );
- return;
- }
- /* NOTE: we're adding the border here, not subtracting! */
- if (xoffset+width > (GLint) (teximage->Width+teximage->Border)) {
- gl_error( ctx, GL_INVALID_VALUE,
- "glCopyTexSubImage2D(xoffset+width)" );
- return;
- }
- if (yoffset+height > (GLint) (teximage->Height+teximage->Border)) {
- gl_error( ctx, GL_INVALID_VALUE,
- "glCopyTexSubImage2D(yoffset+height)" );
- return;
- }
+ if (copytexsubimage_error_check(ctx, 2, target, level,
+ xoffset, yoffset, 0, width, height))
+ return;
+ if (ctx->Pixel.MapColorFlag || ctx->Pixel.ScaleOrBiasRGBA
+ || !ctx->Driver.CopyTexSubImage2D
+ || !(*ctx->Driver.CopyTexSubImage2D)(ctx, target, level,
+ xoffset, yoffset, x, y, width, height )) {
+ struct gl_texture_unit *texUnit;
+ struct gl_texture_image *teximage;
+ texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ teximage = texUnit->CurrentD[2]->Image[level];
+ assert(teximage);
if (teximage->Data) {
- copy_tex_sub_image( ctx, teximage, width, height,
- x, y, xoffset, yoffset, 0 );
- /* tell driver about change */
- if (ctx->Driver.TexSubImage) {
- (*ctx->Driver.TexSubImage)( ctx, GL_TEXTURE_2D, texUnit->CurrentD[2], level,
- xoffset, yoffset, width, height,
- teximage->IntFormat,
- teximage );
- }
- else {
- if (ctx->Driver.TexImage) {
- (*ctx->Driver.TexImage)( ctx, GL_TEXTURE_2D, texUnit->CurrentD[2], level,
- teximage->IntFormat,
- teximage );
- }
+ copy_tex_sub_image(ctx, teximage, width, height,
+ x, y, xoffset, yoffset, 0);
+ /* tell driver about the change */
+ if (ctx->Driver.TexImage) {
+ (*ctx->Driver.TexImage)( ctx, GL_TEXTURE_2D,
+ texUnit->CurrentD[2],
+ level, teximage->IntFormat, teximage );
}
}
}
- else {
- gl_error( ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D" );
- }
}
-void gl_CopyTexSubImage3DEXT( GLcontext *ctx,
- GLenum target, GLint level,
- GLint xoffset, GLint yoffset, GLint zoffset,
- GLint x, GLint y, GLsizei width, GLsizei height )
+void
+_mesa_CopyTexSubImage3D( GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLint x, GLint y, GLsizei width, GLsizei height )
{
- struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
- struct gl_texture_image *teximage;
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glCopyTexSubImage3D");
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glCopyTexSubImage3DEXT");
- if (target!=GL_TEXTURE_2D) {
- gl_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage3DEXT(target)" );
- return;
- }
- if (level<0 || level>=ctx->Const.MaxTextureLevels) {
- gl_error( ctx, GL_INVALID_VALUE, "glCopyTexSubImage3DEXT(level)" );
- return;
- }
- if (width<0) {
- gl_error( ctx, GL_INVALID_VALUE, "glCopyTexSubImage3DEXT(width)" );
+ if (copytexsubimage_error_check(ctx, 3, target, level,
+ xoffset, yoffset, zoffset, width, height))
return;
- }
- if (height<0) {
- gl_error( ctx, GL_INVALID_VALUE, "glCopyTexSubImage3DEXT(height)" );
- return;
- }
- teximage = texUnit->CurrentD[3]->Image[level];
- if (teximage) {
- if (xoffset < -((GLint)teximage->Border)) {
- gl_error( ctx, GL_INVALID_VALUE, "glCopyTexSubImage3DEXT(xoffset)" );
- return;
- }
- if (yoffset < -((GLint)teximage->Border)) {
- gl_error( ctx, GL_INVALID_VALUE, "glCopyTexSubImage3DEXT(yoffset)" );
- return;
- }
- if (zoffset < -((GLint)teximage->Border)) {
- gl_error( ctx, GL_INVALID_VALUE, "glCopyTexSubImage3DEXT(zoffset)" );
- return;
- }
- /* NOTE: we're adding the border here, not subtracting! */
- if (xoffset+width > (GLint) (teximage->Width+teximage->Border)) {
- gl_error( ctx, GL_INVALID_VALUE,
- "glCopyTexSubImage3DEXT(xoffset+width)" );
- return;
- }
- if (yoffset+height > (GLint) (teximage->Height+teximage->Border)) {
- gl_error( ctx, GL_INVALID_VALUE,
- "glCopyTexSubImage3DEXT(yoffset+height)" );
- return;
- }
- if (zoffset > (GLint) (teximage->Depth+teximage->Border)) {
- gl_error( ctx, GL_INVALID_VALUE,
- "glCopyTexSubImage3DEXT(zoffset+depth)" );
- return;
- }
-
- if (teximage->Data) {
- copy_tex_sub_image( ctx, teximage, width, height,
- x, y, xoffset, yoffset, zoffset);
-
- /* tell driver about change */
- if (ctx->Driver.TexImage) {
- (*ctx->Driver.TexImage)( ctx, GL_TEXTURE_3D_EXT, texUnit->CurrentD[3],
- level, teximage->IntFormat,
- teximage );
- }
+ if (ctx->Pixel.MapColorFlag || ctx->Pixel.ScaleOrBiasRGBA
+ || !ctx->Driver.CopyTexSubImage3D
+ || !(*ctx->Driver.CopyTexSubImage3D)(ctx, target, level,
+ xoffset, yoffset, zoffset, x, y, width, height )) {
+ struct gl_texture_unit *texUnit;
+ struct gl_texture_image *teximage;
+ texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ teximage = texUnit->CurrentD[3]->Image[level];
+ assert(teximage);
+ if (teximage->Data) {
+ copy_tex_sub_image(ctx, teximage, width, height,
+ x, y, xoffset, yoffset, zoffset);
+ /* tell driver about the change */
+ if (ctx->Driver.TexImage) {
+ (*ctx->Driver.TexImage)( ctx, GL_TEXTURE_3D,
+ texUnit->CurrentD[3],
+ level, teximage->IntFormat, teximage );
+ }
}
}
- else {
- gl_error( ctx, GL_INVALID_OPERATION, "glCopyTexSubImage3DEXT" );
- }
}
-
projects / mesa.git / blobdiff