-/* $Id: texstore.c,v 1.37 2002/06/15 03:03:09 brianp Exp $ */
-
/*
* Mesa 3-D graphics library
- * Version: 4.1
+ * Version: 6.3
*
- * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2004 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"),
* Brian Paul
*/
+/*
+ * The GL texture image functions in teximage.c basically just do
+ * error checking and data structure allocation. They in turn call
+ * device driver functions which actually copy/convert/store the user's
+ * texture image data.
+ *
+ * However, most device drivers will be able to use the fallback functions
+ * in this file. That is, most drivers will have the following bit of
+ * code:
+ * ctx->Driver.TexImage1D = _mesa_store_teximage1d;
+ * ctx->Driver.TexImage2D = _mesa_store_teximage2d;
+ * ctx->Driver.TexImage3D = _mesa_store_teximage3d;
+ * etc...
+ *
+ * Texture image processing is actually kind of complicated. We have to do:
+ * Format/type conversions
+ * pixel unpacking
+ * pixel transfer (scale, bais, lookup, convolution!, etc)
+ *
+ * These functions can handle most everything, including processing full
+ * images and sub-images.
+ */
+
+
+#include "glheader.h"
+#include "bufferobj.h"
#include "colormac.h"
#include "context.h"
#include "convolve.h"
#include "image.h"
#include "macros.h"
-#include "mem.h"
+#include "imports.h"
+#include "texcompress.h"
#include "texformat.h"
#include "teximage.h"
#include "texstore.h"
-#include "texutil.h"
-/*
- * 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 the
- * number of components for the format. Return -1 if invalid enum.
- *
- * GH: Do we really need this? We have the number of bytes per texel
- * in the texture format structures, so why don't we just use that?
- */
-static GLint
-components_in_intformat( GLint format )
+static const GLint ZERO = 4, ONE = 5;
+
+static GLboolean can_swizzle(GLenum logicalBaseFormat)
+{
+ switch (logicalBaseFormat) {
+ case GL_RGBA:
+ case GL_RGB:
+ case GL_LUMINANCE_ALPHA:
+ case GL_INTENSITY:
+ case GL_ALPHA:
+ case GL_LUMINANCE:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+/**
+ * When promoting texture formats (see below) we need to compute the
+ * mapping of dest components back to source components.
+ * This function does that.
+ * \param logicalBaseFormat the logical format of the texture
+ * \param textureBaseFormat the final texture format
+ * \return map[4] the four mapping values
+ */
+static void
+compute_component_mapping(GLenum logicalBaseFormat, GLenum textureBaseFormat,
+ GLubyte map[6])
+{
+ map[ZERO] = ZERO;
+ map[ONE] = ONE;
+
+ /* compute mapping from dest components back to src components */
+ switch (textureBaseFormat) {
+ case GL_RGB:
+ case GL_RGBA:
+ switch (logicalBaseFormat) {
+ case GL_LUMINANCE:
+ map[0] = map[1] = map[2] = 0;
+ if (textureBaseFormat == GL_RGBA)
+ map[3] = ONE;
+ break;
+ case GL_ALPHA:
+ ASSERT(textureBaseFormat == GL_RGBA);
+ map[0] = map[1] = map[2] = ZERO;
+ map[3] = 0;
+ break;
+ case GL_INTENSITY:
+ map[0] = map[1] = map[2] = 0;
+ if (textureBaseFormat == GL_RGBA)
+ map[3] = 0;
+ break;
+ case GL_LUMINANCE_ALPHA:
+ ASSERT(textureBaseFormat == GL_RGBA);
+ map[0] = map[1] = map[2] = 0;
+ map[3] = 1;
+ break;
+ case GL_RGB:
+ ASSERT(textureBaseFormat == GL_RGBA);
+ map[0] = 0;
+ map[1] = 1;
+ map[2] = 2;
+ map[3] = ONE;
+ break;
+ case GL_RGBA:
+ ASSERT(textureBaseFormat == GL_RGBA);
+ map[0] = 0;
+ map[1] = 1;
+ map[2] = 2;
+ map[3] = 3;
+ break;
+ default:
+ _mesa_problem(NULL, "Unexpected logicalBaseFormat");
+ map[0] = map[1] = map[2] = map[3] = 0;
+ }
+ break;
+ case GL_LUMINANCE_ALPHA:
+ switch (logicalBaseFormat) {
+ case GL_LUMINANCE:
+ map[0] = 0;
+ map[1] = ONE;
+ break;
+ case GL_ALPHA:
+ map[0] = ZERO;
+ map[1] = 0;
+ break;
+ case GL_INTENSITY:
+ map[0] = 0;
+ map[1] = 0;
+ break;
+ default:
+ _mesa_problem(NULL, "Unexpected logicalBaseFormat");
+ map[0] = map[1] = 0;
+ }
+ break;
+ default:
+ _mesa_problem(NULL, "Unexpected logicalBaseFormat");
+ map[0] = map[1] = 0;
+ break;
+ }
+}
+
+
+/**
+ * Make a temporary (color) texture image with GLfloat components.
+ * Apply all needed pixel unpacking and pixel transfer operations.
+ * Note that there are both logicalBaseFormat and textureBaseFormat parameters.
+ * Suppose the user specifies GL_LUMINANCE as the internal texture format
+ * but the graphics hardware doesn't support luminance textures. So, might
+ * use an RGB hardware format instead.
+ * If logicalBaseFormat != textureBaseFormat we have some extra work to do.
+ *
+ * \param ctx the rendering context
+ * \param dims image dimensions: 1, 2 or 3
+ * \param logicalBaseFormat basic texture derived from the user's
+ * internal texture format value
+ * \param textureBaseFormat the actual basic format of the texture
+ * \param srcWidth source image width
+ * \param srcHeight source image height
+ * \param srcDepth source image depth
+ * \param srcFormat source image format
+ * \param srcType source image type
+ * \param srcAddr source image address
+ * \param srcPacking source image pixel packing
+ * \return resulting image with format = textureBaseFormat and type = GLfloat.
+ */
+static GLfloat *
+make_temp_float_image(GLcontext *ctx, GLuint dims,
+ GLenum logicalBaseFormat,
+ GLenum textureBaseFormat,
+ GLint srcWidth, GLint srcHeight, GLint srcDepth,
+ GLenum srcFormat, GLenum srcType,
+ const GLvoid *srcAddr,
+ const struct gl_pixelstore_attrib *srcPacking)
+{
+ GLuint transferOps = ctx->_ImageTransferState;
+ GLfloat *tempImage;
+
+ ASSERT(dims >= 1 && dims <= 3);
+
+ ASSERT(logicalBaseFormat == GL_RGBA ||
+ logicalBaseFormat == GL_RGB ||
+ logicalBaseFormat == GL_LUMINANCE_ALPHA ||
+ logicalBaseFormat == GL_LUMINANCE ||
+ logicalBaseFormat == GL_ALPHA ||
+ logicalBaseFormat == GL_INTENSITY ||
+ logicalBaseFormat == GL_COLOR_INDEX ||
+ logicalBaseFormat == GL_DEPTH_COMPONENT);
+
+ ASSERT(textureBaseFormat == GL_RGBA ||
+ textureBaseFormat == GL_RGB ||
+ textureBaseFormat == GL_LUMINANCE_ALPHA ||
+ textureBaseFormat == GL_LUMINANCE ||
+ textureBaseFormat == GL_ALPHA ||
+ textureBaseFormat == GL_INTENSITY ||
+ textureBaseFormat == GL_COLOR_INDEX ||
+ textureBaseFormat == GL_DEPTH_COMPONENT);
+
+ /* conventional color image */
+
+ if ((dims == 1 && ctx->Pixel.Convolution1DEnabled) ||
+ (dims >= 2 && ctx->Pixel.Convolution2DEnabled) ||
+ (dims >= 2 && ctx->Pixel.Separable2DEnabled)) {
+ /* need image convolution */
+ const GLuint preConvTransferOps
+ = (transferOps & IMAGE_PRE_CONVOLUTION_BITS) | IMAGE_CLAMP_BIT;
+ const GLuint postConvTransferOps
+ = (transferOps & IMAGE_POST_CONVOLUTION_BITS) | IMAGE_CLAMP_BIT;
+ GLint img, row;
+ GLint convWidth, convHeight;
+ GLfloat *convImage;
+
+ /* pre-convolution image buffer (3D) */
+ tempImage = (GLfloat *) _mesa_malloc(srcWidth * srcHeight * srcDepth
+ * 4 * sizeof(GLfloat));
+ if (!tempImage)
+ return NULL;
+
+ /* post-convolution image buffer (2D) */
+ convImage = (GLfloat *) _mesa_malloc(srcWidth * srcHeight
+ * 4 * sizeof(GLfloat));
+ if (!convImage) {
+ _mesa_free(tempImage);
+ return NULL;
+ }
+
+ /* loop over 3D image slices */
+ for (img = 0; img < srcDepth; img++) {
+ GLfloat *dst = tempImage + img * (srcWidth * srcHeight * 4);
+
+ /* unpack and do transfer ops up to convolution */
+ for (row = 0; row < srcHeight; row++) {
+ const GLvoid *src = _mesa_image_address(dims, srcPacking,
+ srcAddr, srcWidth, srcHeight,
+ srcFormat, srcType, img, row, 0);
+ _mesa_unpack_color_span_float(ctx, srcWidth, GL_RGBA, dst,
+ srcFormat, srcType, src,
+ srcPacking,
+ preConvTransferOps);
+ dst += srcWidth * 4;
+ }
+
+ /* do convolution */
+ {
+ GLfloat *src = tempImage + img * (srcWidth * srcHeight * 4);
+ convWidth = srcWidth;
+ convHeight = srcHeight;
+ if (dims == 1) {
+ ASSERT(ctx->Pixel.Convolution1DEnabled);
+ _mesa_convolve_1d_image(ctx, &convWidth, src, convImage);
+ }
+ else {
+ if (ctx->Pixel.Convolution2DEnabled) {
+ _mesa_convolve_2d_image(ctx, &convWidth, &convHeight,
+ src, convImage);
+ }
+ else {
+ ASSERT(ctx->Pixel.Separable2DEnabled);
+ _mesa_convolve_sep_image(ctx, &convWidth, &convHeight,
+ src, convImage);
+ }
+ }
+ }
+
+ /* do post-convolution transfer and pack into tempImage */
+ {
+ const GLint logComponents
+ = _mesa_components_in_format(logicalBaseFormat);
+ const GLfloat *src = convImage;
+ GLfloat *dst = tempImage + img * (convWidth * convHeight * 4);
+ for (row = 0; row < convHeight; row++) {
+ _mesa_pack_rgba_span_float(ctx, convWidth,
+ (const GLfloat (*)[4]) src,
+ logicalBaseFormat, GL_FLOAT,
+ dst, &ctx->DefaultPacking,
+ postConvTransferOps);
+ src += convWidth * 4;
+ dst += convWidth * logComponents;
+ }
+ }
+ } /* loop over 3D image slices */
+
+ _mesa_free(convImage);
+
+ /* might need these below */
+ srcWidth = convWidth;
+ srcHeight = convHeight;
+ }
+ else {
+ /* no convolution */
+ const GLint components = _mesa_components_in_format(logicalBaseFormat);
+ const GLint srcStride = _mesa_image_row_stride(srcPacking,
+ srcWidth, srcFormat, srcType);
+ GLfloat *dst;
+ GLint img, row;
+
+ tempImage = (GLfloat *) _mesa_malloc(srcWidth * srcHeight * srcDepth
+ * components * sizeof(GLfloat));
+ if (!tempImage)
+ return NULL;
+
+ dst = tempImage;
+ for (img = 0; img < srcDepth; img++) {
+ const GLubyte *src
+ = (const GLubyte *) _mesa_image_address(dims, srcPacking, srcAddr,
+ srcWidth, srcHeight,
+ srcFormat, srcType,
+ img, 0, 0);
+ for (row = 0; row < srcHeight; row++) {
+ _mesa_unpack_color_span_float(ctx, srcWidth, logicalBaseFormat,
+ dst, srcFormat, srcType, src,
+ srcPacking, transferOps);
+ dst += srcWidth * components;
+ src += srcStride;
+ }
+ }
+ }
+
+ if (logicalBaseFormat != textureBaseFormat) {
+ /* more work */
+ GLint texComponents = _mesa_components_in_format(textureBaseFormat);
+ GLint logComponents = _mesa_components_in_format(logicalBaseFormat);
+ GLfloat *newImage;
+ GLint i, n;
+ GLubyte map[6];
+
+ /* we only promote up to RGB, RGBA and LUMINANCE_ALPHA formats for now */
+ ASSERT(textureBaseFormat == GL_RGB || textureBaseFormat == GL_RGBA ||
+ textureBaseFormat == GL_LUMINANCE_ALPHA);
+
+ /* The actual texture format should have at least as many components
+ * as the logical texture format.
+ */
+ ASSERT(texComponents >= logComponents);
+
+ newImage = (GLfloat *) _mesa_malloc(srcWidth * srcHeight * srcDepth
+ * texComponents * sizeof(GLfloat));
+ if (!newImage) {
+ _mesa_free(tempImage);
+ return NULL;
+ }
+
+ compute_component_mapping(logicalBaseFormat, textureBaseFormat, map);
+
+ n = srcWidth * srcHeight * srcDepth;
+ for (i = 0; i < n; i++) {
+ GLint k;
+ for (k = 0; k < texComponents; k++) {
+ GLint j = map[k];
+ if (j == ZERO)
+ newImage[i * texComponents + k] = 0.0F;
+ else if (j == ONE)
+ newImage[i * texComponents + k] = 1.0F;
+ else
+ newImage[i * texComponents + k] = tempImage[i * logComponents + j];
+ }
+ }
+
+ _mesa_free(tempImage);
+ tempImage = newImage;
+ }
+
+ return tempImage;
+}
+
+
+/**
+ * Make a temporary (color) texture image with GLchan components.
+ * Apply all needed pixel unpacking and pixel transfer operations.
+ * Note that there are both logicalBaseFormat and textureBaseFormat parameters.
+ * Suppose the user specifies GL_LUMINANCE as the internal texture format
+ * but the graphics hardware doesn't support luminance textures. So, might
+ * use an RGB hardware format instead.
+ * If logicalBaseFormat != textureBaseFormat we have some extra work to do.
+ *
+ * \param ctx the rendering context
+ * \param dims image dimensions: 1, 2 or 3
+ * \param logicalBaseFormat basic texture derived from the user's
+ * internal texture format value
+ * \param textureBaseFormat the actual basic format of the texture
+ * \param srcWidth source image width
+ * \param srcHeight source image height
+ * \param srcDepth source image depth
+ * \param srcFormat source image format
+ * \param srcType source image type
+ * \param srcAddr source image address
+ * \param srcPacking source image pixel packing
+ * \return resulting image with format = textureBaseFormat and type = GLchan.
+ */
+GLchan *
+_mesa_make_temp_chan_image(GLcontext *ctx, GLuint dims,
+ GLenum logicalBaseFormat,
+ GLenum textureBaseFormat,
+ GLint srcWidth, GLint srcHeight, GLint srcDepth,
+ GLenum srcFormat, GLenum srcType,
+ const GLvoid *srcAddr,
+ const struct gl_pixelstore_attrib *srcPacking)
+{
+ GLuint transferOps = ctx->_ImageTransferState;
+ const GLint components = _mesa_components_in_format(logicalBaseFormat);
+ GLboolean freeSrcImage = GL_FALSE;
+ GLint img, row;
+ GLchan *tempImage, *dst;
+
+ ASSERT(dims >= 1 && dims <= 3);
+
+ ASSERT(logicalBaseFormat == GL_RGBA ||
+ logicalBaseFormat == GL_RGB ||
+ logicalBaseFormat == GL_LUMINANCE_ALPHA ||
+ logicalBaseFormat == GL_LUMINANCE ||
+ logicalBaseFormat == GL_ALPHA ||
+ logicalBaseFormat == GL_INTENSITY);
+
+ ASSERT(textureBaseFormat == GL_RGBA ||
+ textureBaseFormat == GL_RGB ||
+ textureBaseFormat == GL_LUMINANCE_ALPHA ||
+ textureBaseFormat == GL_LUMINANCE ||
+ textureBaseFormat == GL_ALPHA ||
+ textureBaseFormat == GL_INTENSITY);
+
+ if ((dims == 1 && ctx->Pixel.Convolution1DEnabled) ||
+ (dims >= 2 && ctx->Pixel.Convolution2DEnabled) ||
+ (dims >= 2 && ctx->Pixel.Separable2DEnabled)) {
+ /* get convolved image */
+ GLfloat *convImage = make_temp_float_image(ctx, dims,
+ logicalBaseFormat,
+ logicalBaseFormat,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType,
+ srcAddr, srcPacking);
+ if (!convImage)
+ return NULL;
+ /* the convolved image is our new source image */
+ srcAddr = convImage;
+ srcFormat = logicalBaseFormat;
+ srcType = GL_FLOAT;
+ srcPacking = &ctx->DefaultPacking;
+ _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
+ transferOps = 0;
+ freeSrcImage = GL_TRUE;
+ }
+
+ /* unpack and transfer the source image */
+ tempImage = (GLchan *) _mesa_malloc(srcWidth * srcHeight * srcDepth
+ * components * sizeof(GLchan));
+ if (!tempImage)
+ return NULL;
+
+ dst = tempImage;
+ for (img = 0; img < srcDepth; img++) {
+ const GLint srcStride = _mesa_image_row_stride(srcPacking,
+ srcWidth, srcFormat,
+ srcType);
+ const GLubyte *src
+ = (const GLubyte *) _mesa_image_address(dims, srcPacking, srcAddr,
+ srcWidth, srcHeight,
+ srcFormat, srcType,
+ img, 0, 0);
+ for (row = 0; row < srcHeight; row++) {
+ _mesa_unpack_color_span_chan(ctx, srcWidth, logicalBaseFormat, dst,
+ srcFormat, srcType, src, srcPacking,
+ transferOps);
+ dst += srcWidth * components;
+ src += srcStride;
+ }
+ }
+
+ /* If we made a temporary image for convolution, free it here */
+ if (freeSrcImage) {
+ _mesa_free((void *) srcAddr);
+ }
+
+ if (logicalBaseFormat != textureBaseFormat) {
+ /* one more conversion step */
+ GLint texComponents = _mesa_components_in_format(textureBaseFormat);
+ GLint logComponents = _mesa_components_in_format(logicalBaseFormat);
+ GLchan *newImage;
+ GLint i, n;
+ GLubyte map[6];
+
+ /* we only promote up to RGB, RGBA and LUMINANCE_ALPHA formats for now */
+ ASSERT(textureBaseFormat == GL_RGB || textureBaseFormat == GL_RGBA ||
+ textureBaseFormat == GL_LUMINANCE_ALPHA);
+
+ /* The actual texture format should have at least as many components
+ * as the logical texture format.
+ */
+ ASSERT(texComponents >= logComponents);
+
+ newImage = (GLchan *) _mesa_malloc(srcWidth * srcHeight * srcDepth
+ * texComponents * sizeof(GLchan));
+ if (!newImage) {
+ _mesa_free(tempImage);
+ return NULL;
+ }
+
+ compute_component_mapping(logicalBaseFormat, textureBaseFormat, map);
+
+ n = srcWidth * srcHeight * srcDepth;
+ for (i = 0; i < n; i++) {
+ GLint k;
+ for (k = 0; k < texComponents; k++) {
+ GLint j = map[k];
+ if (j == ZERO)
+ newImage[i * texComponents + k] = 0;
+ else if (j == ONE)
+ newImage[i * texComponents + k] = CHAN_MAX;
+ else
+ newImage[i * texComponents + k] = tempImage[i * logComponents + j];
+ }
+ }
+
+ _mesa_free(tempImage);
+ tempImage = newImage;
+ }
+
+ return tempImage;
+}
+
+
+static void swizzle_copy(GLubyte *dst,
+ GLuint dstComponents,
+ const GLubyte *src,
+ GLuint srcComponents,
+ GLubyte *map,
+ GLuint count)
+{
+ GLubyte tmp[8];
+ GLint i;
+
+ tmp[ZERO] = 0x0;
+ tmp[ONE] = 0xff;
+
+ switch (dstComponents) {
+ case 4:
+ for (i = 0; i < count; i++) {
+ COPY_4UBV(tmp, src);
+ src += srcComponents;
+ dst[0] = tmp[map[0]];
+ dst[1] = tmp[map[1]];
+ dst[2] = tmp[map[2]];
+ dst[3] = tmp[map[3]];
+ dst += 4;
+ }
+ break;
+ case 3:
+ for (i = 0; i < count; i++) {
+ COPY_4UBV(tmp, src);
+ src += srcComponents;
+ dst[0] = tmp[map[0]];
+ dst[1] = tmp[map[1]];
+ dst[2] = tmp[map[2]];
+ dst += 3;
+ }
+ break;
+ case 2:
+ for (i = 0; i < count; i++) {
+ COPY_4UBV(tmp, src);
+ src += srcComponents;
+ dst[0] = tmp[map[0]];
+ dst[1] = tmp[map[1]];
+ dst += 2;
+ }
+ break;
+ }
+}
+
+
+static void
+_mesa_swizzle_ubyte_image(GLcontext *ctx,
+ GLuint dimensions,
+ GLenum srcFormat,
+ const GLubyte *dstmap, GLint dstComponents,
+
+ GLvoid *dstAddr,
+ GLint dstXoffset, GLint dstYoffset, GLint dstZoffset,
+ GLint dstRowStride, GLint dstImageStride,
+
+ GLint srcWidth, GLint srcHeight, GLint srcDepth,
+ const GLvoid *srcAddr,
+ const struct gl_pixelstore_attrib *srcPacking )
+{
+ GLint srcComponents = _mesa_components_in_format(srcFormat);
+ GLubyte srcmap[6], map[4];
+ GLint i;
+
+ const GLint srcRowStride = _mesa_image_row_stride(srcPacking, srcWidth,
+ srcFormat, GL_UNSIGNED_BYTE);
+ const GLint srcImageStride = _mesa_image_image_stride(srcPacking,
+ srcWidth, srcHeight, srcFormat, GL_UNSIGNED_BYTE);
+ const GLubyte *srcImage = (const GLubyte *) _mesa_image_address(dimensions,
+ srcPacking, srcAddr, srcWidth, srcHeight, srcFormat, GL_UNSIGNED_BYTE, 0, 0, 0);
+
+ GLubyte *dstImage = (GLubyte *) dstAddr
+ + dstZoffset * dstImageStride
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstComponents;
+
+ compute_component_mapping(srcFormat, GL_RGBA, srcmap);
+
+ for (i = 0; i < 4; i++)
+ map[i] = srcmap[dstmap[i]];
+
+ if (srcRowStride == srcWidth * srcComponents &&
+ (srcImageStride == srcWidth * srcHeight * srcComponents ||
+ srcDepth == 1)) {
+ swizzle_copy(dstImage, dstComponents, srcImage, srcComponents, map,
+ srcWidth * srcHeight * srcDepth);
+ }
+ else {
+ GLint img, row;
+ for (img = 0; img < srcDepth; img++) {
+ const GLubyte *srcRow = srcImage;
+ GLubyte *dstRow = dstImage;
+ for (row = 0; row < srcHeight; row++) {
+ swizzle_copy(dstRow, dstComponents, srcRow, srcComponents, map, srcWidth);
+ dstRow += dstRowStride;
+ srcRow += srcRowStride;
+ }
+ srcImage += srcImageStride;
+ dstImage += dstImageStride;
+ }
+ }
+}
+
+
+
+
+
+/**
+ * Teximage storage routine for when a simple memcpy will do.
+ * No pixel transfer operations or special texel encodings allowed.
+ * 1D, 2D and 3D images supported.
+ */
+static void
+memcpy_texture(GLuint dimensions,
+ const struct gl_texture_format *dstFormat,
+ GLvoid *dstAddr,
+ GLint dstXoffset, GLint dstYoffset, GLint dstZoffset,
+ GLint dstRowStride, GLint dstImageStride,
+ GLint srcWidth, GLint srcHeight, GLint srcDepth,
+ GLenum srcFormat, GLenum srcType,
+ const GLvoid *srcAddr,
+ const struct gl_pixelstore_attrib *srcPacking)
+{
+ const GLint srcRowStride = _mesa_image_row_stride(srcPacking, srcWidth,
+ srcFormat, srcType);
+ const GLint srcImageStride = _mesa_image_image_stride(srcPacking,
+ srcWidth, srcHeight, srcFormat, srcType);
+ const GLubyte *srcImage = (const GLubyte *) _mesa_image_address(dimensions,
+ srcPacking, srcAddr, srcWidth, srcHeight, srcFormat, srcType, 0, 0, 0);
+ const GLint bytesPerRow = srcWidth * dstFormat->TexelBytes;
+ const GLint bytesPerImage = srcHeight * bytesPerRow;
+ const GLint bytesPerTexture = srcDepth * bytesPerImage;
+ GLubyte *dstImage = (GLubyte *) dstAddr
+ + dstZoffset * dstImageStride
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+
+ if (dstRowStride == srcRowStride &&
+ dstRowStride == bytesPerRow &&
+ ((dstImageStride == srcImageStride &&
+ dstImageStride == bytesPerImage) ||
+ (srcDepth == 1))) {
+ /* one big memcpy */
+ _mesa_memcpy(dstImage, srcImage, bytesPerTexture);
+ }
+ else {
+ GLint img, row;
+ for (img = 0; img < srcDepth; img++) {
+ const GLubyte *srcRow = srcImage;
+ GLubyte *dstRow = dstImage;
+ for (row = 0; row < srcHeight; row++) {
+ _mesa_memcpy(dstRow, srcRow, bytesPerRow);
+ dstRow += dstRowStride;
+ srcRow += srcRowStride;
+ }
+ srcImage += srcImageStride;
+ dstImage += dstImageStride;
+ }
+ }
+}
+
+
+
+/**
+ * Store an image in any of the formats:
+ * _mesa_texformat_rgba
+ * _mesa_texformat_rgb
+ * _mesa_texformat_alpha
+ * _mesa_texformat_luminance
+ * _mesa_texformat_luminance_alpha
+ * _mesa_texformat_intensity
+ *
+ * \param dims either 1 or 2 or 3
+ * \param baseInternalFormat user-specified base internal format
+ * \param dstFormat destination Mesa texture format
+ * \param dstAddr destination image address
+ * \param dstX/Y/Zoffset destination x/y/z offset (ala TexSubImage), in texels
+ * \param dstRowStride destination image row stride, in bytes
+ * \param dstImageStride destination image layer stride, in bytes
+ * \param srcWidth/Height/Depth source image size, in pixels
+ * \param srcFormat incoming image format
+ * \param srcType incoming image data type
+ * \param srcAddr source image address
+ * \param srcPacking source image packing parameters
+ */
+GLboolean
+_mesa_texstore_rgba(GLcontext *ctx, GLuint dims,
+ GLenum baseInternalFormat,
+ const struct gl_texture_format *dstFormat,
+ GLvoid *dstAddr,
+ GLint dstXoffset, GLint dstYoffset, GLint dstZoffset,
+ GLint dstRowStride, GLint dstImageStride,
+ GLint srcWidth, GLint srcHeight, GLint srcDepth,
+ GLenum srcFormat, GLenum srcType,
+ const GLvoid *srcAddr,
+ const struct gl_pixelstore_attrib *srcPacking)
+{
+ const GLint components = _mesa_components_in_format(baseInternalFormat);
+
+ ASSERT(dstFormat == &_mesa_texformat_rgba ||
+ dstFormat == &_mesa_texformat_rgb ||
+ dstFormat == &_mesa_texformat_alpha ||
+ dstFormat == &_mesa_texformat_luminance ||
+ dstFormat == &_mesa_texformat_luminance_alpha ||
+ dstFormat == &_mesa_texformat_intensity);
+ ASSERT(baseInternalFormat == GL_RGBA ||
+ baseInternalFormat == GL_RGB ||
+ baseInternalFormat == GL_ALPHA ||
+ baseInternalFormat == GL_LUMINANCE ||
+ baseInternalFormat == GL_LUMINANCE_ALPHA ||
+ baseInternalFormat == GL_INTENSITY);
+ ASSERT(dstFormat->TexelBytes == components * sizeof(GLchan));
+
+ if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ baseInternalFormat == srcFormat &&
+ srcType == CHAN_TYPE) {
+ /* simple memcpy path */
+ memcpy_texture(dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageStride,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+ else if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ dstFormat == &_mesa_texformat_rgb &&
+ srcFormat == GL_RGBA &&
+ srcType == CHAN_TYPE) {
+ /* extract RGB from RGBA */
+ int img, row, col;
+ GLchan *dstImage = (GLchan *) (GLubyte *) dstAddr
+ + dstZoffset * dstImageStride
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ for (img = 0; img < srcDepth; img++) {
+ const GLint srcRowStride = _mesa_image_row_stride(srcPacking,
+ srcWidth, srcFormat, srcType);
+ GLchan *srcRow = (GLchan *) _mesa_image_address(dims, srcPacking,
+ srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, 0, 0);
+ GLchan *dstRow = dstImage;
+ for (row = 0; row < srcHeight; row++) {
+ for (col = 0; col < srcWidth; col++) {
+ dstRow[col * 3 + RCOMP] = srcRow[col * 4 + RCOMP];
+ dstRow[col * 3 + GCOMP] = srcRow[col * 4 + GCOMP];
+ dstRow[col * 3 + BCOMP] = srcRow[col * 4 + BCOMP];
+ }
+ dstRow += dstRowStride;
+ srcRow = (GLchan *) ((GLubyte *) srcRow + srcRowStride);
+ }
+ dstImage += dstImageStride;
+ }
+ }
+ else {
+ /* general path */
+ const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
+ baseInternalFormat,
+ dstFormat->BaseFormat,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking);
+ const GLchan *src = tempImage;
+ GLint bytesPerRow;
+ GLubyte *dstImage = (GLubyte *) dstAddr
+ + dstZoffset * dstImageStride
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ GLint img, row;
+ if (!tempImage)
+ return GL_FALSE;
+ _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
+ bytesPerRow = srcWidth * components * sizeof(GLchan);
+ for (img = 0; img < srcDepth; img++) {
+ GLubyte *dstRow = dstImage;
+ for (row = 0; row < srcHeight; row++) {
+ _mesa_memcpy(dstRow, src, bytesPerRow);
+ dstRow += dstRowStride;
+ src += srcWidth * components;
+ }
+ dstImage += dstImageStride;
+ }
+
+ _mesa_free((void *) tempImage);
+ }
+ return GL_TRUE;
+}
+
+
+/**
+ * Store a floating point depth component texture image.
+ */
+GLboolean
+_mesa_texstore_depth_component_float32(STORE_PARAMS)
+{
+ (void) dims;
+ ASSERT(dstFormat == &_mesa_texformat_depth_component_float32);
+ ASSERT(dstFormat->TexelBytes == sizeof(GLfloat));
+
+ if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ baseInternalFormat == GL_DEPTH_COMPONENT &&
+ srcFormat == GL_DEPTH_COMPONENT &&
+ srcType == GL_FLOAT) {
+ /* simple memcpy path */
+ memcpy_texture(dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageStride,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+ else {
+ /* general path */
+ GLubyte *dstImage = (GLubyte *) dstAddr
+ + dstZoffset * dstImageStride
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ GLint img, row;
+ for (img = 0; img < srcDepth; img++) {
+ GLubyte *dstRow = dstImage;
+ for (row = 0; row < srcHeight; row++) {
+ const GLvoid *src = _mesa_image_address(dims, srcPacking,
+ srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0);
+ _mesa_unpack_depth_span(ctx, srcWidth, (GLfloat *) dstRow,
+ srcType, src, srcPacking);
+ dstRow += dstRowStride;
+ }
+ dstImage += dstImageStride;
+ }
+ }
+ return GL_TRUE;
+}
+
+
+/**
+ * Store a 16-bit integer depth component texture image.
+ */
+GLboolean
+_mesa_texstore_depth_component16(STORE_PARAMS)
+{
+ (void) dims;
+ ASSERT(dstFormat == &_mesa_texformat_depth_component16);
+ ASSERT(dstFormat->TexelBytes == sizeof(GLushort));
+
+ if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ baseInternalFormat == GL_DEPTH_COMPONENT &&
+ srcFormat == GL_DEPTH_COMPONENT &&
+ srcType == GL_UNSIGNED_SHORT) {
+ /* simple memcpy path */
+ memcpy_texture(dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageStride,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+ else {
+ /* general path */
+ GLubyte *dstImage = (GLubyte *) dstAddr
+ + dstZoffset * dstImageStride
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ GLint img, row, col;
+ for (img = 0; img < srcDepth; img++) {
+ GLubyte *dstRow = dstImage;
+ for (row = 0; row < srcHeight; row++) {
+ GLfloat depthTemp[MAX_WIDTH];
+ const GLvoid *src = _mesa_image_address(dims, srcPacking,
+ srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0);
+ GLushort *dst16 = (GLushort *) dstRow;
+ _mesa_unpack_depth_span(ctx, srcWidth, depthTemp,
+ srcType, src, srcPacking);
+ for (col = 0; col < srcWidth; col++) {
+ dst16[col] = (GLushort) (depthTemp[col] * 65535.0F);
+ }
+ dstRow += dstRowStride;
+ }
+ dstImage += dstImageStride;
+ }
+ }
+ return GL_TRUE;
+}
+
+
+/**
+ * Store an rgb565 or rgb565_rev texture image.
+ */
+GLboolean
+_mesa_texstore_rgb565(STORE_PARAMS)
+{
+ ASSERT(dstFormat == &_mesa_texformat_rgb565 ||
+ dstFormat == &_mesa_texformat_rgb565_rev);
+ ASSERT(dstFormat->TexelBytes == 2);
+
+ if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ dstFormat == &_mesa_texformat_rgb565 &&
+ baseInternalFormat == GL_RGB &&
+ srcFormat == GL_RGB &&
+ srcType == GL_UNSIGNED_SHORT_5_6_5) {
+ /* simple memcpy path */
+ memcpy_texture(dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageStride,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+ else if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ baseInternalFormat == GL_RGB &&
+ srcFormat == GL_RGB &&
+ srcType == GL_UNSIGNED_BYTE &&
+ dims == 2) {
+ /* do optimized tex store */
+ const GLint srcRowStride = _mesa_image_row_stride(srcPacking, srcWidth,
+ srcFormat, srcType);
+ const GLubyte *src = (const GLubyte *)
+ _mesa_image_address(dims, srcPacking, srcAddr, srcWidth, srcHeight,
+ srcFormat, srcType, 0, 0, 0);
+ GLubyte *dst = (GLubyte *) dstAddr
+ + dstZoffset * dstImageStride
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ GLint row, col;
+ for (row = 0; row < srcHeight; row++) {
+ const GLubyte *srcUB = (const GLubyte *) src;
+ GLushort *dstUS = (GLushort *) dst;
+ /* check for byteswapped format */
+ if (dstFormat == &_mesa_texformat_rgb565) {
+ for (col = 0; col < srcWidth; col++) {
+ dstUS[col] = PACK_COLOR_565( srcUB[0], srcUB[1], srcUB[2] );
+ srcUB += 3;
+ }
+ }
+ else {
+ for (col = 0; col < srcWidth; col++) {
+ dstUS[col] = PACK_COLOR_565_REV( srcUB[0], srcUB[1], srcUB[2] );
+ srcUB += 3;
+ }
+ }
+ dst += dstRowStride;
+ src += srcRowStride;
+ }
+ }
+ else {
+ /* general path */
+ const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
+ baseInternalFormat,
+ dstFormat->BaseFormat,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking);
+ const GLchan *src = tempImage;
+ GLubyte *dstImage = (GLubyte *) dstAddr
+ + dstZoffset * dstImageStride
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ GLint img, row, col;
+ if (!tempImage)
+ return GL_FALSE;
+ _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
+ for (img = 0; img < srcDepth; img++) {
+ GLubyte *dstRow = dstImage;
+ for (row = 0; row < srcHeight; row++) {
+ GLushort *dstUS = (GLushort *) dstRow;
+ /* check for byteswapped format */
+ if (dstFormat == &_mesa_texformat_rgb565) {
+ for (col = 0; col < srcWidth; col++) {
+ dstUS[col] = PACK_COLOR_565( CHAN_TO_UBYTE(src[RCOMP]),
+ CHAN_TO_UBYTE(src[GCOMP]),
+ CHAN_TO_UBYTE(src[BCOMP]) );
+ src += 3;
+ }
+ }
+ else {
+ for (col = 0; col < srcWidth; col++) {
+ dstUS[col] = PACK_COLOR_565_REV( CHAN_TO_UBYTE(src[RCOMP]),
+ CHAN_TO_UBYTE(src[GCOMP]),
+ CHAN_TO_UBYTE(src[BCOMP]) );
+ src += 3;
+ }
+ }
+ dstRow += dstRowStride;
+ }
+ dstImage += dstImageStride;
+ }
+ _mesa_free((void *) tempImage);
+ }
+ return GL_TRUE;
+}
+
+
+GLboolean
+_mesa_texstore_rgba8888(STORE_PARAMS)
+{
+ const GLuint ui = 1;
+ const GLubyte littleEndian = *((const GLubyte *) &ui);
+
+ (void)littleEndian;
+ ASSERT(dstFormat == &_mesa_texformat_rgba8888 ||
+ dstFormat == &_mesa_texformat_rgba8888_rev);
+ ASSERT(dstFormat->TexelBytes == 4);
+
+ if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ dstFormat == &_mesa_texformat_rgba8888 &&
+ baseInternalFormat == GL_RGBA &&
+ ((srcFormat == GL_RGBA && srcType == GL_UNSIGNED_INT_8_8_8_8) ||
+ (srcFormat == GL_ABGR_EXT && srcType == GL_UNSIGNED_INT_8_8_8_8_REV))) {
+ /* simple memcpy path */
+ memcpy_texture(dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageStride,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+#if 0
+ else if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ srcType == GL_UNSIGNED_BYTE &&
+ dstFormat == &_mesa_texformat_rgba8888 &&
+ littleEndian &&
+ can_swizzle(srcFormat)) {
+ GLubyte dstmap[4];
+
+ /* dstmap - how to swizzle from GL_RGBA to dst format:
+ *
+ * FIXME - add !litteEndian and _rev varients:
+ */
+ dstmap[3] = 0;
+ dstmap[2] = 1;
+ dstmap[1] = 2;
+ dstmap[0] = 3;
+
+ _mesa_swizzle_ubyte_image(ctx, dims,
+ srcFormat,
+ dstmap, 4,
+ dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageStride,
+ srcWidth, srcHeight, srcDepth, srcAddr,
+ srcPacking);
+ }
+#endif
+ else {
+ /* general path */
+ const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
+ baseInternalFormat,
+ dstFormat->BaseFormat,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking);
+ const GLchan *src = tempImage;
+ GLubyte *dstImage = (GLubyte *) dstAddr
+ + dstZoffset * dstImageStride
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ GLint img, row, col;
+ if (!tempImage)
+ return GL_FALSE;
+ _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
+ for (img = 0; img < srcDepth; img++) {
+ GLubyte *dstRow = dstImage;
+ for (row = 0; row < srcHeight; row++) {
+ GLuint *dstUI = (GLuint *) dstRow;
+ if (dstFormat == &_mesa_texformat_rgba8888) {
+ for (col = 0; col < srcWidth; col++) {
+ dstUI[col] = PACK_COLOR_8888( CHAN_TO_UBYTE(src[RCOMP]),
+ CHAN_TO_UBYTE(src[GCOMP]),
+ CHAN_TO_UBYTE(src[BCOMP]),
+ CHAN_TO_UBYTE(src[ACOMP]) );
+ src += 4;
+ }
+ }
+ else {
+ for (col = 0; col < srcWidth; col++) {
+ dstUI[col] = PACK_COLOR_8888_REV( CHAN_TO_UBYTE(src[RCOMP]),
+ CHAN_TO_UBYTE(src[GCOMP]),
+ CHAN_TO_UBYTE(src[BCOMP]),
+ CHAN_TO_UBYTE(src[ACOMP]) );
+ src += 4;
+ }
+ }
+ dstRow += dstRowStride;
+ }
+ dstImage += dstImageStride;
+ }
+ _mesa_free((void *) tempImage);
+ }
+ return GL_TRUE;
+}
+
+
+GLboolean
+_mesa_texstore_argb8888(STORE_PARAMS)
+{
+ const GLuint ui = 1;
+ const GLubyte littleEndian = *((const GLubyte *) &ui);
+
+ ASSERT(dstFormat == &_mesa_texformat_argb8888 ||
+ dstFormat == &_mesa_texformat_argb8888_rev);
+ ASSERT(dstFormat->TexelBytes == 4);
+
+ if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ dstFormat == &_mesa_texformat_argb8888 &&
+ baseInternalFormat == GL_RGBA &&
+ srcFormat == GL_BGRA &&
+ ((srcType == GL_UNSIGNED_BYTE && littleEndian) ||
+ srcType == GL_UNSIGNED_INT_8_8_8_8_REV)) {
+ /* simple memcpy path (little endian) */
+ memcpy_texture(dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageStride,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+ else if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ dstFormat == &_mesa_texformat_argb8888_rev &&
+ baseInternalFormat == GL_RGBA &&
+ srcFormat == GL_BGRA &&
+ ((srcType == GL_UNSIGNED_BYTE && !littleEndian) ||
+ srcType == GL_UNSIGNED_INT_8_8_8_8)) {
+ /* simple memcpy path (big endian) */
+ memcpy_texture(dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageStride,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+ else if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ dstFormat == &_mesa_texformat_argb8888 &&
+ srcFormat == GL_RGB &&
+ srcType == GL_UNSIGNED_BYTE) {
+
+ int img, row, col;
+ GLubyte *dstImage = (GLubyte *) dstAddr
+ + dstZoffset * dstImageStride
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ for (img = 0; img < srcDepth; img++) {
+ const GLint srcRowStride = _mesa_image_row_stride(srcPacking,
+ srcWidth, srcFormat, srcType);
+ GLubyte *srcRow = (GLubyte *) _mesa_image_address(dims, srcPacking,
+ srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, 0, 0);
+ GLubyte *dstRow = dstImage;
+ for (row = 0; row < srcHeight; row++) {
+ for (col = 0; col < srcWidth; col++) {
+ dstRow[col * 4 + 0] = srcRow[col * 3 + BCOMP];
+ dstRow[col * 4 + 1] = srcRow[col * 3 + GCOMP];
+ dstRow[col * 4 + 2] = srcRow[col * 3 + RCOMP];
+ dstRow[col * 4 + 3] = 0xff;
+ }
+ dstRow += dstRowStride;
+ srcRow += srcRowStride;
+ }
+ dstImage += dstImageStride;
+ }
+ }
+ else if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ dstFormat == &_mesa_texformat_argb8888 &&
+ srcFormat == GL_RGBA &&
+ srcType == GL_UNSIGNED_BYTE) {
+
+ int img, row, col;
+ GLubyte *dstImage = (GLubyte *) dstAddr
+ + dstZoffset * dstImageStride
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ for (img = 0; img < srcDepth; img++) {
+ const GLint srcRowStride = _mesa_image_row_stride(srcPacking,
+ srcWidth, srcFormat, srcType);
+ GLubyte *srcRow = (GLubyte *) _mesa_image_address(dims, srcPacking,
+ srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, 0, 0);
+ GLubyte *dstRow = dstImage;
+ for (row = 0; row < srcHeight; row++) {
+ for (col = 0; col < srcWidth; col++) {
+ dstRow[col * 4 + 0] = srcRow[col * 4 + BCOMP];
+ dstRow[col * 4 + 1] = srcRow[col * 4 + GCOMP];
+ dstRow[col * 4 + 2] = srcRow[col * 4 + RCOMP];
+ dstRow[col * 4 + 3] = srcRow[col * 4 + ACOMP];
+ }
+ dstRow += dstRowStride;
+ srcRow += srcRowStride;
+ }
+ dstImage += dstImageStride;
+ }
+ }
+ else if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ dstFormat == &_mesa_texformat_argb8888 &&
+ srcType == GL_UNSIGNED_BYTE &&
+ littleEndian &&
+ can_swizzle(srcFormat)) {
+
+ GLubyte dstmap[4];
+
+ /* dstmap - how to swizzle from GL_RGBA to dst format:
+ */
+ dstmap[3] = 3; /* alpha */
+ dstmap[2] = 0; /* red */
+ dstmap[1] = 1; /* green */
+ dstmap[0] = 2; /* blue */
+
+ _mesa_swizzle_ubyte_image(ctx, dims,
+ srcFormat,
+ dstmap, 4,
+ dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageStride,
+ srcWidth, srcHeight, srcDepth, srcAddr,
+ srcPacking);
+ }
+ else {
+ /* general path */
+ const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
+ baseInternalFormat,
+ dstFormat->BaseFormat,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking);
+ const GLchan *src = tempImage;
+ GLubyte *dstImage = (GLubyte *) dstAddr
+ + dstZoffset * dstImageStride
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ GLint img, row, col;
+ if (!tempImage)
+ return GL_FALSE;
+ _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
+ for (img = 0; img < srcDepth; img++) {
+ GLubyte *dstRow = dstImage;
+ for (row = 0; row < srcHeight; row++) {
+ GLuint *dstUI = (GLuint *) dstRow;
+ if (dstFormat == &_mesa_texformat_argb8888) {
+ for (col = 0; col < srcWidth; col++) {
+ dstUI[col] = PACK_COLOR_8888( CHAN_TO_UBYTE(src[ACOMP]),
+ CHAN_TO_UBYTE(src[RCOMP]),
+ CHAN_TO_UBYTE(src[GCOMP]),
+ CHAN_TO_UBYTE(src[BCOMP]) );
+ src += 4;
+ }
+ }
+ else {
+ for (col = 0; col < srcWidth; col++) {
+ dstUI[col] = PACK_COLOR_8888_REV( CHAN_TO_UBYTE(src[ACOMP]),
+ CHAN_TO_UBYTE(src[RCOMP]),
+ CHAN_TO_UBYTE(src[GCOMP]),
+ CHAN_TO_UBYTE(src[BCOMP]) );
+ src += 4;
+ }
+ }
+ dstRow += dstRowStride;
+ }
+ dstImage += dstImageStride;
+ }
+ _mesa_free((void *) tempImage);
+ }
+ return GL_TRUE;
+}
+
+
+GLboolean
+_mesa_texstore_rgb888(STORE_PARAMS)
+{
+ const GLuint ui = 1;
+ const GLubyte littleEndian = *((const GLubyte *) &ui);
+
+ ASSERT(dstFormat == &_mesa_texformat_rgb888);
+ ASSERT(dstFormat->TexelBytes == 3);
+
+ if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ baseInternalFormat == GL_RGB &&
+ srcFormat == GL_BGR &&
+ srcType == GL_UNSIGNED_BYTE &&
+ littleEndian) {
+ /* simple memcpy path */
+ memcpy_texture(dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageStride,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+ else if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ srcFormat == GL_RGBA &&
+ srcType == GL_UNSIGNED_BYTE) {
+ /* extract RGB from RGBA */
+ int img, row, col;
+ GLubyte *dstImage = (GLubyte *) dstAddr
+ + dstZoffset * dstImageStride
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ for (img = 0; img < srcDepth; img++) {
+ const GLint srcRowStride = _mesa_image_row_stride(srcPacking,
+ srcWidth, srcFormat, srcType);
+ GLubyte *srcRow = (GLubyte *) _mesa_image_address(dims, srcPacking,
+ srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, 0, 0);
+ GLubyte *dstRow = dstImage;
+ for (row = 0; row < srcHeight; row++) {
+ for (col = 0; col < srcWidth; col++) {
+ dstRow[col * 3 + 0] = srcRow[col * 4 + BCOMP];
+ dstRow[col * 3 + 1] = srcRow[col * 4 + GCOMP];
+ dstRow[col * 3 + 2] = srcRow[col * 4 + RCOMP];
+ }
+ dstRow += dstRowStride;
+ srcRow += srcRowStride;
+ }
+ dstImage += dstImageStride;
+ }
+ }
+ else {
+ /* general path */
+ const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
+ baseInternalFormat,
+ dstFormat->BaseFormat,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking);
+ const GLchan *src = (const GLchan *) tempImage;
+ GLubyte *dstImage = (GLubyte *) dstAddr
+ + dstZoffset * dstImageStride
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ GLint img, row, col;
+ if (!tempImage)
+ return GL_FALSE;
+ _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
+ for (img = 0; img < srcDepth; img++) {
+ GLubyte *dstRow = dstImage;
+ for (row = 0; row < srcHeight; row++) {
+#if 0
+ if (littleEndian) {
+ for (col = 0; col < srcWidth; col++) {
+ dstRow[col * 3 + 0] = CHAN_TO_UBYTE(src[RCOMP]);
+ dstRow[col * 3 + 1] = CHAN_TO_UBYTE(src[GCOMP]);
+ dstRow[col * 3 + 2] = CHAN_TO_UBYTE(src[BCOMP]);
+ srcUB += 3;
+ }
+ }
+ else {
+ for (col = 0; col < srcWidth; col++) {
+ dstRow[col * 3 + 0] = srcUB[BCOMP];
+ dstRow[col * 3 + 1] = srcUB[GCOMP];
+ dstRow[col * 3 + 2] = srcUB[RCOMP];
+ srcUB += 3;
+ }
+ }
+#else
+ for (col = 0; col < srcWidth; col++) {
+ dstRow[col * 3 + 0] = CHAN_TO_UBYTE(src[BCOMP]);
+ dstRow[col * 3 + 1] = CHAN_TO_UBYTE(src[GCOMP]);
+ dstRow[col * 3 + 2] = CHAN_TO_UBYTE(src[RCOMP]);
+ src += 3;
+ }
+#endif
+ dstRow += dstRowStride;
+ }
+ dstImage += dstImageStride;
+ }
+ _mesa_free((void *) tempImage);
+ }
+ return GL_TRUE;
+}
+
+
+GLboolean
+_mesa_texstore_bgr888(STORE_PARAMS)
+{
+ const GLuint ui = 1;
+ const GLubyte littleEndian = *((const GLubyte *) &ui);
+
+ ASSERT(dstFormat == &_mesa_texformat_bgr888);
+ ASSERT(dstFormat->TexelBytes == 3);
+
+ if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ baseInternalFormat == GL_RGB &&
+ srcFormat == GL_RGB &&
+ srcType == GL_UNSIGNED_BYTE &&
+ littleEndian) {
+ /* simple memcpy path */
+ memcpy_texture(dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageStride,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+ else if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ srcFormat == GL_RGBA &&
+ srcType == GL_UNSIGNED_BYTE) {
+ /* extract BGR from RGBA */
+ int img, row, col;
+ GLubyte *dstImage = (GLubyte *) dstAddr
+ + dstZoffset * dstImageStride
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ for (img = 0; img < srcDepth; img++) {
+ const GLint srcRowStride = _mesa_image_row_stride(srcPacking,
+ srcWidth, srcFormat, srcType);
+ GLubyte *srcRow = (GLubyte *) _mesa_image_address(dims, srcPacking,
+ srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, 0, 0);
+ GLubyte *dstRow = dstImage;
+ for (row = 0; row < srcHeight; row++) {
+ for (col = 0; col < srcWidth; col++) {
+ dstRow[col * 3 + 0] = srcRow[col * 4 + RCOMP];
+ dstRow[col * 3 + 1] = srcRow[col * 4 + GCOMP];
+ dstRow[col * 3 + 2] = srcRow[col * 4 + BCOMP];
+ }
+ dstRow += dstRowStride;
+ srcRow += srcRowStride;
+ }
+ dstImage += dstImageStride;
+ }
+ }
+ else {
+ /* general path */
+ const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
+ baseInternalFormat,
+ dstFormat->BaseFormat,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking);
+ const GLchan *src = (const GLchan *) tempImage;
+ GLubyte *dstImage = (GLubyte *) dstAddr
+ + dstZoffset * dstImageStride
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ GLint img, row, col;
+ if (!tempImage)
+ return GL_FALSE;
+ _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
+ for (img = 0; img < srcDepth; img++) {
+ GLubyte *dstRow = dstImage;
+ for (row = 0; row < srcHeight; row++) {
+ for (col = 0; col < srcWidth; col++) {
+ dstRow[col * 3 + 0] = CHAN_TO_UBYTE(src[RCOMP]);
+ dstRow[col * 3 + 1] = CHAN_TO_UBYTE(src[GCOMP]);
+ dstRow[col * 3 + 2] = CHAN_TO_UBYTE(src[BCOMP]);
+ src += 3;
+ }
+ dstRow += dstRowStride;
+ }
+ dstImage += dstImageStride;
+ }
+ _mesa_free((void *) tempImage);
+ }
+ return GL_TRUE;
+}
+
+
+GLboolean
+_mesa_texstore_argb4444(STORE_PARAMS)
+{
+ ASSERT(dstFormat == &_mesa_texformat_argb4444 ||
+ dstFormat == &_mesa_texformat_argb4444_rev);
+ ASSERT(dstFormat->TexelBytes == 2);
+
+ if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ dstFormat == &_mesa_texformat_argb4444 &&
+ baseInternalFormat == GL_RGBA &&
+ srcFormat == GL_BGRA &&
+ srcType == GL_UNSIGNED_SHORT_4_4_4_4_REV) {
+ /* simple memcpy path */
+ memcpy_texture(dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageStride,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+ else {
+ /* general path */
+ const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
+ baseInternalFormat,
+ dstFormat->BaseFormat,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking);
+ const GLchan *src = tempImage;
+ GLubyte *dstImage = (GLubyte *) dstAddr
+ + dstZoffset * dstImageStride
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ GLint img, row, col;
+ if (!tempImage)
+ return GL_FALSE;
+ _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
+ for (img = 0; img < srcDepth; img++) {
+ GLubyte *dstRow = dstImage;
+ for (row = 0; row < srcHeight; row++) {
+ GLushort *dstUS = (GLushort *) dstRow;
+ if (dstFormat == &_mesa_texformat_argb4444) {
+ for (col = 0; col < srcWidth; col++) {
+ dstUS[col] = PACK_COLOR_4444( CHAN_TO_UBYTE(src[ACOMP]),
+ CHAN_TO_UBYTE(src[RCOMP]),
+ CHAN_TO_UBYTE(src[GCOMP]),
+ CHAN_TO_UBYTE(src[BCOMP]) );
+ src += 4;
+ }
+ }
+ else {
+ for (col = 0; col < srcWidth; col++) {
+ dstUS[col] = PACK_COLOR_4444_REV( CHAN_TO_UBYTE(src[ACOMP]),
+ CHAN_TO_UBYTE(src[RCOMP]),
+ CHAN_TO_UBYTE(src[GCOMP]),
+ CHAN_TO_UBYTE(src[BCOMP]) );
+ src += 4;
+ }
+ }
+ dstRow += dstRowStride;
+ }
+ dstImage += dstImageStride;
+ }
+ _mesa_free((void *) tempImage);
+ }
+ return GL_TRUE;
+}
+
+
+
+GLboolean
+_mesa_texstore_argb1555(STORE_PARAMS)
+{
+ ASSERT(dstFormat == &_mesa_texformat_argb1555 ||
+ dstFormat == &_mesa_texformat_argb1555_rev);
+ ASSERT(dstFormat->TexelBytes == 2);
+
+ if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ dstFormat == &_mesa_texformat_argb1555 &&
+ baseInternalFormat == GL_RGBA &&
+ srcFormat == GL_BGRA &&
+ srcType == GL_UNSIGNED_SHORT_1_5_5_5_REV) {
+ /* simple memcpy path */
+ memcpy_texture(dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageStride,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+ else {
+ /* general path */
+ const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
+ baseInternalFormat,
+ dstFormat->BaseFormat,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking);
+ const GLchan *src =tempImage;
+ GLubyte *dstImage = (GLubyte *) dstAddr
+ + dstZoffset * dstImageStride
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ GLint img, row, col;
+ if (!tempImage)
+ return GL_FALSE;
+ _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
+ for (img = 0; img < srcDepth; img++) {
+ GLubyte *dstRow = dstImage;
+ for (row = 0; row < srcHeight; row++) {
+ GLushort *dstUS = (GLushort *) dstRow;
+ if (dstFormat == &_mesa_texformat_argb1555) {
+ for (col = 0; col < srcWidth; col++) {
+ dstUS[col] = PACK_COLOR_1555( CHAN_TO_UBYTE(src[ACOMP]),
+ CHAN_TO_UBYTE(src[RCOMP]),
+ CHAN_TO_UBYTE(src[GCOMP]),
+ CHAN_TO_UBYTE(src[BCOMP]) );
+ src += 4;
+ }
+ }
+ else {
+ for (col = 0; col < srcWidth; col++) {
+ dstUS[col] = PACK_COLOR_1555_REV( CHAN_TO_UBYTE(src[ACOMP]),
+ CHAN_TO_UBYTE(src[RCOMP]),
+ CHAN_TO_UBYTE(src[GCOMP]),
+ CHAN_TO_UBYTE(src[BCOMP]) );
+ src += 4;
+ }
+ }
+ dstRow += dstRowStride;
+ }
+ dstImage += dstImageStride;
+ }
+ _mesa_free((void *) tempImage);
+ }
+ return GL_TRUE;
+}
+
+
+GLboolean
+_mesa_texstore_al88(STORE_PARAMS)
{
- switch (format) {
- case GL_ALPHA:
- case GL_ALPHA4:
- case GL_ALPHA8:
- case GL_ALPHA12:
- case GL_ALPHA16:
- return 1;
- case 1:
- case GL_LUMINANCE:
- case GL_LUMINANCE4:
- case GL_LUMINANCE8:
- case GL_LUMINANCE12:
- case GL_LUMINANCE16:
- return 1;
- case 2:
- case GL_LUMINANCE_ALPHA:
- case GL_LUMINANCE4_ALPHA4:
- case GL_LUMINANCE6_ALPHA2:
- case GL_LUMINANCE8_ALPHA8:
- case GL_LUMINANCE12_ALPHA4:
- case GL_LUMINANCE12_ALPHA12:
- case GL_LUMINANCE16_ALPHA16:
- return 2;
- case GL_INTENSITY:
- case GL_INTENSITY4:
- case GL_INTENSITY8:
- case GL_INTENSITY12:
- case GL_INTENSITY16:
- return 1;
- case 3:
- case GL_RGB:
- case GL_R3_G3_B2:
- case GL_RGB4:
- case GL_RGB5:
- case GL_RGB8:
- case GL_RGB10:
- case GL_RGB12:
- case GL_RGB16:
- return 3;
- case 4:
- case GL_RGBA:
- case GL_RGBA2:
- case GL_RGBA4:
- case GL_RGB5_A1:
- case GL_RGBA8:
- case GL_RGB10_A2:
- case GL_RGBA12:
- case GL_RGBA16:
- return 4;
- case GL_COLOR_INDEX:
- case GL_COLOR_INDEX1_EXT:
- case GL_COLOR_INDEX2_EXT:
- case GL_COLOR_INDEX4_EXT:
- case GL_COLOR_INDEX8_EXT:
- case GL_COLOR_INDEX12_EXT:
- case GL_COLOR_INDEX16_EXT:
- return 1;
- case GL_DEPTH_COMPONENT:
- case GL_DEPTH_COMPONENT16_SGIX:
- case GL_DEPTH_COMPONENT24_SGIX:
- case GL_DEPTH_COMPONENT32_SGIX:
- return 1;
- default:
- return -1; /* error */
+ const GLuint ui = 1;
+ const GLubyte littleEndian = *((const GLubyte *) &ui);
+
+ ASSERT(dstFormat == &_mesa_texformat_al88 ||
+ dstFormat == &_mesa_texformat_al88_rev);
+ ASSERT(dstFormat->TexelBytes == 2);
+
+ if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ dstFormat == &_mesa_texformat_al88 &&
+ baseInternalFormat == GL_LUMINANCE_ALPHA &&
+ srcFormat == GL_LUMINANCE_ALPHA &&
+ srcType == GL_UNSIGNED_BYTE &&
+ littleEndian) {
+ /* simple memcpy path */
+ memcpy_texture(dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageStride,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+ else {
+ /* general path */
+ const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
+ baseInternalFormat,
+ dstFormat->BaseFormat,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking);
+ const GLchan *src = tempImage;
+ GLubyte *dstImage = (GLubyte *) dstAddr
+ + dstZoffset * dstImageStride
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ GLint img, row, col;
+ if (!tempImage)
+ return GL_FALSE;
+ _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
+ for (img = 0; img < srcDepth; img++) {
+ GLubyte *dstRow = dstImage;
+ for (row = 0; row < srcHeight; row++) {
+ GLushort *dstUS = (GLushort *) dstRow;
+ if (dstFormat == &_mesa_texformat_al88) {
+ for (col = 0; col < srcWidth; col++) {
+ /* src[0] is luminance, src[1] is alpha */
+ dstUS[col] = PACK_COLOR_88( CHAN_TO_UBYTE(src[1]),
+ CHAN_TO_UBYTE(src[0]) );
+ src += 2;
+ }
+ }
+ else {
+ for (col = 0; col < srcWidth; col++) {
+ /* src[0] is luminance, src[1] is alpha */
+ dstUS[col] = PACK_COLOR_88_REV( CHAN_TO_UBYTE(src[1]),
+ CHAN_TO_UBYTE(src[0]) );
+ src += 2;
+ }
+ }
+ dstRow += dstRowStride;
+ }
+ dstImage += dstImageStride;
+ }
+ _mesa_free((void *) tempImage);
}
+ return GL_TRUE;
}
-/*
- * This function is used to transfer the user's image data into a texture
- * image buffer. We handle both full texture images and subtexture images.
- * We also take care of all image transfer operations here, including
- * convolution, scale/bias, colortables, etc.
- *
- * The destination texel channel type is always GLchan.
- *
- * A hardware driver may use this as a helper routine to unpack and
- * apply pixel transfer ops into a temporary image buffer. Then,
- * convert the temporary image into the special hardware format.
- *
- * Input:
- * dimensions - 1, 2, or 3
- * texFormat - GL_LUMINANCE, GL_INTENSITY, GL_LUMINANCE_ALPHA, GL_ALPHA,
- * GL_RGB or GL_RGBA
- * texDestAddr - destination image address
- * srcWidth, srcHeight, srcDepth - size (in pixels) of src and dest images
- * dstXoffset, dstYoffset, dstZoffset - position to store the image within
- * the destination 3D texture
- * dstRowStride, dstImageStride - dest image strides in bytes
- * srcFormat - source image format (GL_ALPHA, GL_RED, GL_RGB, etc)
- * srcType - GL_UNSIGNED_BYTE, GL_UNSIGNED_SHORT_5_6_5, GL_FLOAT, etc
- * srcPacking - describes packing of incoming image.
- * transferOps - mask of pixel transfer operations
- */
-static void
-transfer_teximage(GLcontext *ctx, GLuint dimensions,
- GLenum texDestFormat, GLvoid *texDestAddr,
- GLint srcWidth, GLint srcHeight, GLint srcDepth,
- GLint dstXoffset, GLint dstYoffset, GLint dstZoffset,
- GLint dstRowStride, GLint dstImageStride,
- GLenum srcFormat, GLenum srcType,
- const GLvoid *srcAddr,
- const struct gl_pixelstore_attrib *srcPacking,
- GLuint transferOps)
+GLboolean
+_mesa_texstore_rgb332(STORE_PARAMS)
{
- GLint texComponents;
-
- ASSERT(ctx);
- ASSERT(dimensions >= 1 && dimensions <= 3);
- ASSERT(texDestAddr);
- ASSERT(srcWidth >= 1);
- ASSERT(srcHeight >= 1);
- ASSERT(srcDepth >= 1);
- ASSERT(dstXoffset >= 0);
- ASSERT(dstYoffset >= 0);
- ASSERT(dstZoffset >= 0);
- ASSERT(dstRowStride >= 0);
- ASSERT(dstImageStride >= 0);
- ASSERT(srcAddr);
- ASSERT(srcPacking);
-
- texComponents = components_in_intformat(texDestFormat);
-
- /* try common 2D texture cases first */
- if (!transferOps && dimensions == 2 && srcType == CHAN_TYPE) {
-
- if (srcFormat == texDestFormat) {
- /* This will cover the common GL_RGB, GL_RGBA, GL_ALPHA,
- * GL_LUMINANCE_ALPHA, etc. texture formats. Use memcpy().
- */
- const GLchan *src = (const GLchan *) _mesa_image_address(
- srcPacking, srcAddr, srcWidth, srcHeight,
- srcFormat, srcType, 0, 0, 0);
- const GLint srcRowStride = _mesa_image_row_stride(srcPacking,
- srcWidth, srcFormat, srcType);
- const GLint widthInBytes = srcWidth * texComponents * sizeof(GLchan);
- GLchan *dst = (GLchan *) texDestAddr
- + dstYoffset * (dstRowStride / sizeof(GLchan))
- + dstXoffset * texComponents;
- if (srcRowStride == widthInBytes && dstRowStride == widthInBytes) {
- MEMCPY(dst, src, srcHeight * widthInBytes);
- }
- else {
- GLint i;
- for (i = 0; i < srcHeight; i++) {
- MEMCPY(dst, src, widthInBytes);
- src += (srcRowStride / sizeof(GLchan));
- dst += (dstRowStride / sizeof(GLchan));
+ ASSERT(dstFormat == &_mesa_texformat_rgb332);
+ ASSERT(dstFormat->TexelBytes == 1);
+
+ if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ baseInternalFormat == GL_RGB &&
+ srcFormat == GL_RGB && srcType == GL_UNSIGNED_BYTE_3_3_2) {
+ /* simple memcpy path */
+ memcpy_texture(dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageStride,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+ else {
+ /* general path */
+ const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
+ baseInternalFormat,
+ dstFormat->BaseFormat,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking);
+ const GLchan *src = tempImage;
+ GLubyte *dstImage = (GLubyte *) dstAddr
+ + dstZoffset * dstImageStride
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ GLint img, row, col;
+ if (!tempImage)
+ return GL_FALSE;
+ _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
+ for (img = 0; img < srcDepth; img++) {
+ GLubyte *dstRow = dstImage;
+ for (row = 0; row < srcHeight; row++) {
+ for (col = 0; col < srcWidth; col++) {
+ dstRow[col] = PACK_COLOR_332( CHAN_TO_UBYTE(src[RCOMP]),
+ CHAN_TO_UBYTE(src[GCOMP]),
+ CHAN_TO_UBYTE(src[BCOMP]) );
+ src += 3;
}
+ dstRow += dstRowStride;
}
- return; /* all done */
+ dstImage += dstImageStride;
}
- else if (srcFormat == GL_RGBA && texDestFormat == GL_RGB) {
- /* commonly used by Quake */
- const GLchan *src = (const GLchan *) _mesa_image_address(
- srcPacking, srcAddr, srcWidth, srcHeight,
- srcFormat, srcType, 0, 0, 0);
- const GLint srcRowStride = _mesa_image_row_stride(srcPacking,
- srcWidth, srcFormat, srcType);
- GLchan *dst = (GLchan *) texDestAddr
- + dstYoffset * (dstRowStride / sizeof(GLchan))
- + dstXoffset * texComponents;
- GLint i, j;
- for (i = 0; i < srcHeight; i++) {
- const GLchan *s = src;
- GLchan *d = dst;
- for (j = 0; j < srcWidth; j++) {
- *d++ = *s++; /*red*/
- *d++ = *s++; /*green*/
- *d++ = *s++; /*blue*/
- s++; /*alpha*/
+ _mesa_free((void *) tempImage);
+ }
+ return GL_TRUE;
+}
+
+
+/**
+ * Texstore for _mesa_texformat_a8, _mesa_texformat_l8, _mesa_texformat_i8.
+ */
+GLboolean
+_mesa_texstore_a8(STORE_PARAMS)
+{
+ ASSERT(dstFormat == &_mesa_texformat_a8 ||
+ dstFormat == &_mesa_texformat_l8 ||
+ dstFormat == &_mesa_texformat_i8);
+ ASSERT(dstFormat->TexelBytes == 1);
+
+ if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ baseInternalFormat == srcFormat &&
+ srcType == GL_UNSIGNED_BYTE) {
+ /* simple memcpy path */
+ memcpy_texture(dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageStride,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+ else {
+ /* general path */
+ const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
+ baseInternalFormat,
+ dstFormat->BaseFormat,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking);
+ const GLchan *src = tempImage;
+ GLubyte *dstImage = (GLubyte *) dstAddr
+ + dstZoffset * dstImageStride
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ GLint img, row, col;
+ if (!tempImage)
+ return GL_FALSE;
+ _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
+ for (img = 0; img < srcDepth; img++) {
+ GLubyte *dstRow = dstImage;
+ for (row = 0; row < srcHeight; row++) {
+ for (col = 0; col < srcWidth; col++) {
+ dstRow[col] = CHAN_TO_UBYTE(src[col]);
}
- src += (srcRowStride / sizeof(GLchan));
- dst += (dstRowStride / sizeof(GLchan));
+ dstRow += dstRowStride;
+ src += srcWidth;
}
- return; /* all done */
+ dstImage += dstImageStride;
}
+ _mesa_free((void *) tempImage);
}
+ return GL_TRUE;
+}
- /*
- * General case solutions
- */
- if (texDestFormat == GL_COLOR_INDEX) {
- /* color index texture */
- const GLenum texType = CHAN_TYPE;
+
+
+GLboolean
+_mesa_texstore_ci8(STORE_PARAMS)
+{
+ (void) dims; (void) baseInternalFormat;
+ ASSERT(dstFormat == &_mesa_texformat_ci8);
+ ASSERT(dstFormat->TexelBytes == 1);
+ ASSERT(baseInternalFormat == GL_COLOR_INDEX);
+
+ if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ srcFormat == GL_COLOR_INDEX &&
+ srcType == GL_UNSIGNED_BYTE) {
+ /* simple memcpy path */
+ memcpy_texture(dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageStride,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+ else {
+ /* general path */
+ GLubyte *dstImage = (GLubyte *) dstAddr
+ + dstZoffset * dstImageStride
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
GLint img, row;
- GLchan *dest = (GLchan *) texDestAddr
- + dstZoffset * (dstImageStride / sizeof(GLchan))
- + dstYoffset * (dstRowStride / sizeof(GLchan))
- + dstXoffset * texComponents;
for (img = 0; img < srcDepth; img++) {
- GLchan *destRow = dest;
+ GLubyte *dstRow = dstImage;
for (row = 0; row < srcHeight; row++) {
- const GLvoid *src = _mesa_image_address(srcPacking,
+ const GLvoid *src = _mesa_image_address(dims, srcPacking,
srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0);
- _mesa_unpack_index_span(ctx, srcWidth, texType, destRow,
- srcType, src, srcPacking, transferOps);
- destRow += (dstRowStride / sizeof(GLchan));
+ _mesa_unpack_index_span(ctx, srcWidth, GL_UNSIGNED_BYTE, dstRow,
+ srcType, src, srcPacking,
+ ctx->_ImageTransferState);
+ dstRow += dstRowStride;
}
- dest += dstImageStride;
+ dstImage += dstImageStride;
}
}
- else if (texDestFormat == GL_DEPTH_COMPONENT) {
- /* Depth texture (shadow maps) */
+ return GL_TRUE;
+}
+
+
+/**
+ * Texstore for _mesa_texformat_ycbcr or _mesa_texformat_ycbcr_rev.
+ */
+GLboolean
+_mesa_texstore_ycbcr(STORE_PARAMS)
+{
+ const GLuint ui = 1;
+ const GLubyte littleEndian = *((const GLubyte *) &ui);
+ (void) ctx; (void) dims; (void) baseInternalFormat;
+
+ ASSERT((dstFormat == &_mesa_texformat_ycbcr) ||
+ (dstFormat == &_mesa_texformat_ycbcr_rev));
+ ASSERT(dstFormat->TexelBytes == 2);
+ ASSERT(ctx->Extensions.MESA_ycbcr_texture);
+ ASSERT(srcFormat == GL_YCBCR_MESA);
+ ASSERT((srcType == GL_UNSIGNED_SHORT_8_8_MESA) ||
+ (srcType == GL_UNSIGNED_SHORT_8_8_REV_MESA));
+ ASSERT(baseInternalFormat == GL_YCBCR_MESA);
+
+ /* always just memcpy since no pixel transfer ops apply */
+ memcpy_texture(dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageStride,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+
+ /* Check if we need byte swapping */
+ /* XXX the logic here _might_ be wrong */
+ if (srcPacking->SwapBytes ^
+ (srcType == GL_UNSIGNED_SHORT_8_8_REV_MESA) ^
+ (dstFormat == &_mesa_texformat_ycbcr_rev) ^
+ !littleEndian) {
+ GLushort *pImage = (GLushort *) ((GLubyte *) dstAddr
+ + dstZoffset * dstImageStride
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes);
GLint img, row;
- GLubyte *dest = (GLubyte *) texDestAddr
- + dstZoffset * dstImageStride
- + dstYoffset * (dstRowStride / sizeof(GLchan))
- + dstXoffset * texComponents;
for (img = 0; img < srcDepth; img++) {
- GLubyte *destRow = dest;
+ GLushort *pRow = pImage;
for (row = 0; row < srcHeight; row++) {
- const GLvoid *src = _mesa_image_address(srcPacking,
- srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0);
- _mesa_unpack_depth_span(ctx, srcWidth, (GLfloat *) destRow,
- srcType, src, srcPacking);
- destRow += (dstRowStride / sizeof(GLchan));
+ _mesa_swap2(pRow, srcWidth);
+ pRow += dstRowStride;
}
- dest += dstImageStride;
+ pImage += dstImageStride;
}
}
- else {
- /* regular, color texture */
- if ((dimensions == 1 && ctx->Pixel.Convolution1DEnabled) ||
- (dimensions >= 2 && ctx->Pixel.Convolution2DEnabled) ||
- (dimensions >= 2 && ctx->Pixel.Separable2DEnabled)) {
- /*
- * Fill texture image with convolution
- */
- GLint img, row;
- GLint convWidth = srcWidth, convHeight = srcHeight;
- GLfloat *tmpImage, *convImage;
- tmpImage = (GLfloat *) MALLOC(srcWidth * srcHeight * 4 * sizeof(GLfloat));
- if (!tmpImage) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
- return;
- }
- convImage = (GLfloat *) MALLOC(srcWidth * srcHeight * 4 * sizeof(GLfloat));
- if (!convImage) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
- FREE(tmpImage);
- return;
- }
+ return GL_TRUE;
+}
- for (img = 0; img < srcDepth; img++) {
- const GLfloat *srcf;
- GLfloat *dstf = tmpImage;
- GLchan *dest;
- /* unpack and do transfer ops up to convolution */
- for (row = 0; row < srcHeight; row++) {
- const GLvoid *src = _mesa_image_address(srcPacking,
- srcAddr, srcWidth, srcHeight,
- srcFormat, srcType, img, row, 0);
- _mesa_unpack_float_color_span(ctx, srcWidth, GL_RGBA, dstf,
- srcFormat, srcType, src, srcPacking,
- transferOps & IMAGE_PRE_CONVOLUTION_BITS,
- GL_TRUE);
- dstf += srcWidth * 4;
- }
- /* convolve */
- if (dimensions == 1) {
- ASSERT(ctx->Pixel.Convolution1DEnabled);
- _mesa_convolve_1d_image(ctx, &convWidth, tmpImage, convImage);
- }
- else {
- if (ctx->Pixel.Convolution2DEnabled) {
- _mesa_convolve_2d_image(ctx, &convWidth, &convHeight,
- tmpImage, convImage);
- }
- else {
- ASSERT(ctx->Pixel.Separable2DEnabled);
- _mesa_convolve_sep_image(ctx, &convWidth, &convHeight,
- tmpImage, convImage);
- }
- }
- /* packing and transfer ops after convolution */
- srcf = convImage;
- dest = (GLchan *) texDestAddr
- + (dstZoffset + img) * (dstImageStride / sizeof(GLchan))
- + dstYoffset * (dstRowStride / sizeof(GLchan));
- for (row = 0; row < convHeight; row++) {
- _mesa_pack_float_rgba_span(ctx, convWidth,
- (const GLfloat (*)[4]) srcf,
- texDestFormat, CHAN_TYPE,
- dest, &_mesa_native_packing,
- transferOps
- & IMAGE_POST_CONVOLUTION_BITS);
- srcf += convWidth * 4;
- dest += (dstRowStride / sizeof(GLchan));
- }
+/**
+ * Store an image in any of the formats:
+ * _mesa_texformat_rgba_float32
+ * _mesa_texformat_rgb_float32
+ * _mesa_texformat_alpha_float32
+ * _mesa_texformat_luminance_float32
+ * _mesa_texformat_luminance_alpha_float32
+ * _mesa_texformat_intensity_float32
+ */
+GLboolean
+_mesa_texstore_rgba_float32(STORE_PARAMS)
+{
+ const GLint components = _mesa_components_in_format(baseInternalFormat);
+
+ ASSERT(dstFormat == &_mesa_texformat_rgba_float32 ||
+ dstFormat == &_mesa_texformat_rgb_float32 ||
+ dstFormat == &_mesa_texformat_alpha_float32 ||
+ dstFormat == &_mesa_texformat_luminance_float32 ||
+ dstFormat == &_mesa_texformat_luminance_alpha_float32 ||
+ dstFormat == &_mesa_texformat_intensity_float32);
+ ASSERT(baseInternalFormat == GL_RGBA ||
+ baseInternalFormat == GL_RGB ||
+ baseInternalFormat == GL_ALPHA ||
+ baseInternalFormat == GL_LUMINANCE ||
+ baseInternalFormat == GL_LUMINANCE_ALPHA ||
+ baseInternalFormat == GL_INTENSITY);
+ ASSERT(dstFormat->TexelBytes == components * sizeof(GLfloat));
+
+ if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ baseInternalFormat == srcFormat &&
+ srcType == GL_FLOAT) {
+ /* simple memcpy path */
+ memcpy_texture(dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageStride,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+ else {
+ /* general path */
+ const GLfloat *tempImage = make_temp_float_image(ctx, dims,
+ baseInternalFormat,
+ dstFormat->BaseFormat,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking);
+ const GLfloat *src = tempImage;
+ GLint bytesPerRow;
+ GLubyte *dstImage = (GLubyte *) dstAddr
+ + dstZoffset * dstImageStride
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ GLint img, row;
+ if (!tempImage)
+ return GL_FALSE;
+ _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
+ bytesPerRow = srcWidth * components * sizeof(GLfloat);
+ for (img = 0; img < srcDepth; img++) {
+ GLubyte *dst = dstImage;
+ for (row = 0; row < srcHeight; row++) {
+ _mesa_memcpy(dst, src, bytesPerRow);
+ dst += dstRowStride;
+ src += srcWidth * components;
}
-
- FREE(convImage);
- FREE(tmpImage);
+ dstImage += dstImageStride;
}
- else {
- /*
- * no convolution
- */
- GLint img, row;
- GLchan *dest = (GLchan *) texDestAddr
- + dstZoffset * (dstImageStride / sizeof(GLchan))
- + dstYoffset * (dstRowStride / sizeof(GLchan))
- + dstXoffset * texComponents;
- for (img = 0; img < srcDepth; img++) {
- GLchan *destRow = dest;
- for (row = 0; row < srcHeight; row++) {
- const GLvoid *srcRow = _mesa_image_address(srcPacking,
- srcAddr, srcWidth, srcHeight,
- srcFormat, srcType, img, row, 0);
- _mesa_unpack_chan_color_span(ctx, srcWidth, texDestFormat,
- destRow, srcFormat, srcType, srcRow,
- srcPacking, transferOps);
- destRow += (dstRowStride / sizeof(GLchan));
+
+ _mesa_free((void *) tempImage);
+ }
+ return GL_TRUE;
+}
+
+
+/**
+ * As above, but store 16-bit floats.
+ */
+GLboolean
+_mesa_texstore_rgba_float16(STORE_PARAMS)
+{
+ const GLint components = _mesa_components_in_format(baseInternalFormat);
+
+ ASSERT(dstFormat == &_mesa_texformat_rgba_float16 ||
+ dstFormat == &_mesa_texformat_rgb_float16 ||
+ dstFormat == &_mesa_texformat_alpha_float16 ||
+ dstFormat == &_mesa_texformat_luminance_float16 ||
+ dstFormat == &_mesa_texformat_luminance_alpha_float16 ||
+ dstFormat == &_mesa_texformat_intensity_float16);
+ ASSERT(baseInternalFormat == GL_RGBA ||
+ baseInternalFormat == GL_RGB ||
+ baseInternalFormat == GL_ALPHA ||
+ baseInternalFormat == GL_LUMINANCE ||
+ baseInternalFormat == GL_LUMINANCE_ALPHA ||
+ baseInternalFormat == GL_INTENSITY);
+ ASSERT(dstFormat->TexelBytes == components * sizeof(GLhalfARB));
+
+ if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ baseInternalFormat == srcFormat &&
+ srcType == GL_HALF_FLOAT_ARB) {
+ /* simple memcpy path */
+ memcpy_texture(dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageStride,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+ else {
+ /* general path */
+ const GLfloat *tempImage = make_temp_float_image(ctx, dims,
+ baseInternalFormat,
+ dstFormat->BaseFormat,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking);
+ const GLfloat *src = tempImage;
+ GLubyte *dstImage = (GLubyte *) dstAddr
+ + dstZoffset * dstImageStride
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ GLint img, row;
+ if (!tempImage)
+ return GL_FALSE;
+ _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
+ for (img = 0; img < srcDepth; img++) {
+ GLubyte *dstRow = dstImage;
+ for (row = 0; row < srcHeight; row++) {
+ GLhalfARB *dstTexel = (GLhalfARB *) dstRow;
+ GLint i;
+ for (i = 0; i < srcWidth * components; i++) {
+ dstTexel[i] = _mesa_float_to_half(src[i]);
}
- dest += dstImageStride / sizeof(GLchan);
+ dstRow += dstRowStride;
+ src += srcWidth * components;
}
+ dstImage += dstImageStride;
}
+
+ _mesa_free((void *) tempImage);
}
+ return GL_TRUE;
}
-/*
- * Transfer a texture image from user space to <destAddr> applying all
- * needed image transfer operations and storing the result in the format
- * specified by <dstFormat>. <dstFormat> may be any format from texformat.h.
- * Input:
- * dimensions - 1, 2 or 3
- * baseInternalFormat - base format of the internal texture format
- * specified by the user. This is very important, see below.
- * dstFormat - destination image format
- * dstAddr - destination address
- * srcWidth, srcHeight, srcDepth - size of source iamge
- * dstX/Y/Zoffset - as specified by glTexSubImage
- * dstRowStride - stride between dest rows in bytes
- * dstImageStride - stride between dest images in bytes
- * srcFormat, srcType - incoming image format and datatype
- * srcAddr - source image address
- * srcPacking - packing params of source image
- *
- * XXX this function is a bit more complicated than it should be. If
- * _mesa_convert_texsubimage[123]d could handle any dest/source formats
- * or if transfer_teximage() could store in any MESA_FORMAT_* format, we
- * could simplify things here.
+/**
+ * Check if an unpack PBO is active prior to fetching a texture image.
+ * If so, do bounds checking and map the buffer into main memory.
+ * Any errors detected will be recorded.
+ * The caller _must_ call _mesa_unmap_teximage_pbo() too!
*/
-void
-_mesa_transfer_teximage(GLcontext *ctx, GLuint dimensions,
- GLenum baseInternalFormat,
- const struct gl_texture_format *dstFormat,
- GLvoid *dstAddr,
- GLint srcWidth, GLint srcHeight, GLint srcDepth,
- GLint dstXoffset, GLint dstYoffset, GLint dstZoffset,
- GLint dstRowStride, GLint dstImageStride,
- GLenum srcFormat, GLenum srcType,
- const GLvoid *srcAddr,
- const struct gl_pixelstore_attrib *srcPacking)
+const GLvoid *
+_mesa_validate_pbo_teximage(GLcontext *ctx, GLuint dimensions,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLenum format, GLenum type, const GLvoid *pixels,
+ const struct gl_pixelstore_attrib *unpack,
+ const char *funcName)
{
- const GLint dstRowStridePixels = dstRowStride / dstFormat->TexelBytes;
- const GLint dstImageStridePixels = dstImageStride / dstFormat->TexelBytes;
- GLboolean makeTemp;
- GLuint transferOps = ctx->_ImageTransferState;
- GLboolean freeSourceData = GL_FALSE;
- GLint postConvWidth = srcWidth, postConvHeight = srcHeight;
+ GLubyte *buf;
- assert(baseInternalFormat > 0);
-
- if (transferOps & IMAGE_CONVOLUTION_BIT) {
- _mesa_adjust_image_for_convolution(ctx, dimensions, &postConvWidth,
- &postConvHeight);
+ if (unpack->BufferObj->Name == 0) {
+ /* no PBO */
+ return pixels;
+ }
+ if (!_mesa_validate_pbo_access(dimensions, unpack, width, height, depth,
+ format, type, pixels)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, funcName, "(invalid PBO access");
+ return NULL;
}
- /*
- * Consider this scenario: The user's source image is GL_RGB and the
- * requested internal format is GL_LUMINANCE. Now suppose the device
- * driver doesn't support GL_LUMINANCE and instead uses RGB16 as the
- * texture format. In that case we still need to do an intermediate
- * conversion to luminance format so that the incoming red channel gets
- * replicated into the dest red, green and blue channels. The following
- * code takes care of that.
- */
- if (dstFormat->BaseFormat != baseInternalFormat) {
- /* Allocate storage for temporary image in the baseInternalFormat */
- const GLint texelSize = _mesa_components_in_format(baseInternalFormat)
- * sizeof(GLchan);
- const GLint bytes = texelSize * postConvWidth * postConvHeight *srcDepth;
- const GLint tmpRowStride = texelSize * postConvWidth;
- const GLint tmpImgStride = texelSize * postConvWidth * postConvHeight;
- GLvoid *tmpImage = MALLOC(bytes);
- if (!tmpImage)
- return;
- transfer_teximage(ctx, dimensions, baseInternalFormat, tmpImage,
- srcWidth, srcHeight, srcDepth,
- 0, 0, 0, /* x/y/zoffset */
- tmpRowStride, tmpImgStride,
- srcFormat, srcType, srcAddr, srcPacking, transferOps);
-
- /* this is our new source image */
- srcWidth = postConvWidth;
- srcHeight = postConvHeight;
- srcFormat = baseInternalFormat;
- srcType = CHAN_TYPE;
- srcAddr = tmpImage;
- srcPacking = &_mesa_native_packing;
- freeSourceData = GL_TRUE;
- transferOps = 0; /* image transfer ops were completed */
- }
-
- /* Let the optimized tex conversion functions take a crack at the
- * image conversion if the dest format is a h/w format.
- */
- if (_mesa_is_hardware_tex_format(dstFormat)) {
- if (transferOps) {
- makeTemp = GL_TRUE;
- }
- else {
- if (dimensions == 1) {
- makeTemp = !_mesa_convert_texsubimage1d(dstFormat->MesaFormat,
- dstXoffset,
- srcWidth,
- srcFormat, srcType,
- srcPacking, srcAddr,
- dstAddr);
- }
- else if (dimensions == 2) {
- makeTemp = !_mesa_convert_texsubimage2d(dstFormat->MesaFormat,
- dstXoffset, dstYoffset,
- srcWidth, srcHeight,
- dstRowStridePixels,
- srcFormat, srcType,
- srcPacking, srcAddr,
- dstAddr);
- }
- else {
- assert(dimensions == 3);
- makeTemp = !_mesa_convert_texsubimage3d(dstFormat->MesaFormat,
- dstXoffset, dstYoffset, dstZoffset,
- srcWidth, srcHeight, srcDepth,
- dstRowStridePixels, dstImageStridePixels,
- srcFormat, srcType,
- srcPacking, srcAddr, dstAddr);
- }
- if (!makeTemp) {
- /* all done! */
- if (freeSourceData)
- FREE((void *) srcAddr);
- return;
- }
- }
+ buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
+ GL_READ_ONLY_ARB, unpack->BufferObj);
+ if (!buf) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, funcName, "(PBO is mapped");
+ return NULL;
}
- else {
- /* software texture format */
- makeTemp = GL_FALSE;
- }
-
- if (makeTemp) {
- GLint postConvWidth = srcWidth, postConvHeight = srcHeight;
- GLenum tmpFormat;
- GLuint tmpComps, tmpTexelSize;
- GLint tmpRowStride, tmpImageStride;
- GLubyte *tmpImage;
-
- if (transferOps & IMAGE_CONVOLUTION_BIT) {
- _mesa_adjust_image_for_convolution(ctx, dimensions, &postConvWidth,
- &postConvHeight);
- }
-
- tmpFormat = dstFormat->BaseFormat;
- tmpComps = _mesa_components_in_format(tmpFormat);
- tmpTexelSize = tmpComps * sizeof(GLchan);
- tmpRowStride = postConvWidth * tmpTexelSize;
- tmpImageStride = postConvWidth * postConvHeight * tmpTexelSize;
- tmpImage = (GLubyte *) MALLOC(postConvWidth * postConvHeight *
- srcDepth * tmpTexelSize);
- if (!tmpImage) {
- if (freeSourceData)
- FREE((void *) srcAddr);
- return;
- }
- transfer_teximage(ctx, dimensions, tmpFormat, tmpImage,
- srcWidth, srcHeight, srcDepth,
- 0, 0, 0, /* x/y/zoffset */
- tmpRowStride, tmpImageStride,
- srcFormat, srcType, srcAddr, srcPacking, transferOps);
-
- if (freeSourceData)
- FREE((void *) srcAddr);
-
- /* the temp image is our new source image */
- srcWidth = postConvWidth;
- srcHeight = postConvHeight;
- srcFormat = tmpFormat;
- srcType = CHAN_TYPE;
- srcAddr = tmpImage;
- srcPacking = &_mesa_native_packing;
- freeSourceData = GL_TRUE;
- }
-
- if (_mesa_is_hardware_tex_format(dstFormat)) {
- assert(makeTemp);
- if (dimensions == 1) {
- GLboolean b;
- b = _mesa_convert_texsubimage1d(dstFormat->MesaFormat,
- dstXoffset,
- srcWidth,
- srcFormat, srcType,
- srcPacking, srcAddr,
- dstAddr);
- assert(b);
- }
- else if (dimensions == 2) {
- GLboolean b;
- b = _mesa_convert_texsubimage2d(dstFormat->MesaFormat,
- dstXoffset, dstYoffset,
- srcWidth, srcHeight,
- dstRowStridePixels,
- srcFormat, srcType,
- srcPacking, srcAddr,
- dstAddr);
- assert(b);
- }
- else {
- GLboolean b;
- b = _mesa_convert_texsubimage3d(dstFormat->MesaFormat,
- dstXoffset, dstYoffset, dstZoffset,
- srcWidth, srcHeight, srcDepth,
- dstRowStridePixels, dstImageStridePixels,
- srcFormat, srcType,
- srcPacking, srcAddr, dstAddr);
- assert(b);
- }
+ return ADD_POINTERS(buf, pixels);
+}
+
+
+/**
+ * Check if an unpack PBO is active prior to fetching a compressed texture
+ * image.
+ * If so, do bounds checking and map the buffer into main memory.
+ * Any errors detected will be recorded.
+ * The caller _must_ call _mesa_unmap_teximage_pbo() too!
+ */
+const GLvoid *
+_mesa_validate_pbo_compressed_teximage(GLcontext *ctx,
+ GLsizei imageSize, const GLvoid *pixels,
+ const struct gl_pixelstore_attrib *packing,
+ const char *funcName)
+{
+ GLubyte *buf;
+
+ if (packing->BufferObj->Name == 0) {
+ /* not using a PBO - return pointer unchanged */
+ return pixels;
}
- else {
- /* software format */
- assert(!makeTemp);
- transfer_teximage(ctx, dimensions, dstFormat->BaseFormat, dstAddr,
- srcWidth, srcHeight, srcDepth,
- dstXoffset, dstYoffset, dstZoffset,
- dstRowStride, dstImageStride,
- srcFormat, srcType, srcAddr, srcPacking, transferOps);
+ if ((const GLubyte *) pixels + imageSize >
+ (const GLubyte *) packing->BufferObj->Size) {
+ /* out of bounds read! */
+ _mesa_error(ctx, GL_INVALID_OPERATION, funcName, "(invalid PBO access");
+ return NULL;
+ }
+
+ buf = (GLubyte*) ctx->Driver.MapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
+ GL_READ_ONLY_ARB, packing->BufferObj);
+ if (!buf) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, funcName, "(PBO is mapped");
+ return NULL;
}
- if (freeSourceData)
- FREE((void *) srcAddr); /* the temp image */
+ return ADD_POINTERS(buf, pixels);
+}
+
+
+/**
+ * This function must be called after either of the validate_pbo_*_teximage()
+ * functions. It unmaps the PBO buffer if it was mapped earlier.
+ */
+void
+_mesa_unmap_teximage_pbo(GLcontext *ctx, const struct gl_pixelstore_attrib *unpack)
+{
+ if (unpack->BufferObj->Name) {
+ ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
+ unpack->BufferObj);
+ }
}
/*
- * This is the software fallback for Driver.TexImage1D().
- * The texture image type will be GLchan.
- * The texture image format will be GL_COLOR_INDEX, GL_INTENSITY,
- * GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_ALPHA, GL_RGB or GL_RGBA.
- *
+ * This is the software fallback for Driver.TexImage1D()
+ * and Driver.CopyTexImage1D().
+ * \sa _mesa_store_teximage2d()
*/
void
_mesa_store_teximage1d(GLcontext *ctx, GLenum target, GLint level,
struct gl_texture_image *texImage)
{
GLint postConvWidth = width;
- GLint texelBytes, sizeInBytes;
+ GLint sizeInBytes;
+ (void) border;
if (ctx->_ImageTransferState & IMAGE_CONVOLUTION_BIT) {
_mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
/* choose the texture format */
assert(ctx->Driver.ChooseTextureFormat);
- texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
- internalFormat, format, type);
+ texImage->TexFormat = ctx->Driver.ChooseTextureFormat(ctx, internalFormat,
+ format, type);
assert(texImage->TexFormat);
- texImage->FetchTexel = texImage->TexFormat->FetchTexel1D;
-
- texelBytes = texImage->TexFormat->TexelBytes;
-
- /* Compute image size, in bytes */
- if (texImage->IsCompressed) {
- assert(ctx->Driver.CompressedTextureSize);
- sizeInBytes = ctx->Driver.CompressedTextureSize(ctx, texImage);
- assert(sizeInBytes > 0);
- texImage->CompressedSize = sizeInBytes;
- }
- else {
- sizeInBytes = postConvWidth * texelBytes;
- }
+ texImage->FetchTexelc = texImage->TexFormat->FetchTexel1D;
+ texImage->FetchTexelf = texImage->TexFormat->FetchTexel1Df;
/* allocate memory */
+ if (texImage->IsCompressed)
+ sizeInBytes = texImage->CompressedSize;
+ else
+ sizeInBytes = postConvWidth * texImage->TexFormat->TexelBytes;
texImage->Data = MESA_PBUFFER_ALLOC(sizeInBytes);
if (!texImage->Data) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D");
return;
}
- if (pixels) {
- /* unpack image, apply transfer ops and store in texImage->Data */
- _mesa_transfer_teximage(ctx, 1,
- _mesa_base_tex_format(ctx, internalFormat),
- texImage->TexFormat, texImage->Data,
- width, 1, 1, 0, 0, 0,
- 0, /* dstRowStride */
- 0, /* dstImageStride */
- format, type, pixels, packing);
-
- /* GL_SGIS_generate_mipmap */
- if (level == texObj->BaseLevel && texObj->GenerateMipmap) {
- _mesa_generate_mipmap(ctx,
- &ctx->Texture.Unit[ctx->Texture.CurrentUnit],
- texObj);
+ pixels = _mesa_validate_pbo_teximage(ctx, 1, width, 1, 1, format, type, pixels,
+ packing, "glTexImage1D");
+ if (!pixels) {
+ /* Note: we check for a NULL image pointer here, _after_ we allocated
+ * memory for the texture. That's what the GL spec calls for.
+ */
+ return;
+ }
+ else {
+ const GLint dstRowStride = 0, dstImageStride = 0;
+ GLboolean success;
+ ASSERT(texImage->TexFormat->StoreImage);
+ success = texImage->TexFormat->StoreImage(ctx, 1, texImage->Format,
+ texImage->TexFormat,
+ texImage->Data,
+ 0, 0, 0, /* dstX/Y/Zoffset */
+ dstRowStride, dstImageStride,
+ width, 1, 1,
+ format, type, pixels, packing);
+ if (!success) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D");
}
}
+
+ /* GL_SGIS_generate_mipmap */
+ if (level == texObj->BaseLevel && texObj->GenerateMipmap) {
+ _mesa_generate_mipmap(ctx, target,
+ &ctx->Texture.Unit[ctx->Texture.CurrentUnit],
+ texObj);
+ }
+
+ _mesa_unmap_teximage_pbo(ctx, packing);
}
-/*
- * This is the software fallback for Driver.TexImage2D().
- * The texture image type will be GLchan.
- * The texture image format will be GL_COLOR_INDEX, GL_INTENSITY,
- * GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_ALPHA, GL_RGB or GL_RGBA.
+/**
+ * This is the software fallback for Driver.TexImage2D()
+ * and Driver.CopyTexImage2D().
+ * We store the image in heap memory. We know nothing about on-board
+ * VRAM here. But since most DRI drivers rely on keeping a copy of all
+ * textures in main memory, this routine will typically be used by
+ * hardware drivers too.
*
- * NOTE: if real texture compression is supported, this whole function
- * will need to be overridden.
+ * Reasons why a driver might override this function:
+ * - Special memory allocation needs (VRAM, AGP, etc)
+ * - Unusual row/image strides or padding
+ * - Special housekeeping
+ * - Using VRAM-based Pixel Buffer Objects
*/
void
_mesa_store_teximage2d(GLcontext *ctx, GLenum target, GLint level,
{
GLint postConvWidth = width, postConvHeight = height;
GLint texelBytes, sizeInBytes;
+ (void) border;
if (ctx->_ImageTransferState & IMAGE_CONVOLUTION_BIT) {
_mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
internalFormat, format, type);
assert(texImage->TexFormat);
- texImage->FetchTexel = texImage->TexFormat->FetchTexel2D;
+ texImage->FetchTexelc = texImage->TexFormat->FetchTexel2D;
+ texImage->FetchTexelf = texImage->TexFormat->FetchTexel2Df;
texelBytes = texImage->TexFormat->TexelBytes;
- /* Compute image size, in bytes */
- if (texImage->IsCompressed) {
- assert(ctx->Driver.CompressedTextureSize);
- sizeInBytes = ctx->Driver.CompressedTextureSize(ctx, texImage);
- assert(sizeInBytes > 0);
- texImage->CompressedSize = sizeInBytes;
- }
- else {
- sizeInBytes = postConvWidth * postConvHeight * texelBytes;
- }
-
/* allocate memory */
+ if (texImage->IsCompressed)
+ sizeInBytes = texImage->CompressedSize;
+ else
+ sizeInBytes = postConvWidth * postConvHeight * texelBytes;
texImage->Data = MESA_PBUFFER_ALLOC(sizeInBytes);
if (!texImage->Data) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
return;
}
- if (pixels) {
- /* unpack image, apply transfer ops and store in texImage->Data */
- _mesa_transfer_teximage(ctx, 2,
- _mesa_base_tex_format(ctx, internalFormat),
- texImage->TexFormat, texImage->Data,
- width, height, 1, 0, 0, 0,
- texImage->Width * texelBytes,
- 0, /* dstImageStride */
- format, type, pixels, packing);
-
- /* GL_SGIS_generate_mipmap */
- if (level == texObj->BaseLevel && texObj->GenerateMipmap) {
- _mesa_generate_mipmap(ctx,
- &ctx->Texture.Unit[ctx->Texture.CurrentUnit],
- texObj);
+ pixels = _mesa_validate_pbo_teximage(ctx, 2, width, height, 1, format, type,
+ pixels, packing, "glTexImage2D");
+ if (!pixels) {
+ /* Note: we check for a NULL image pointer here, _after_ we allocated
+ * memory for the texture. That's what the GL spec calls for.
+ */
+ return;
+ }
+ else {
+ GLint dstRowStride, dstImageStride = 0;
+ GLboolean success;
+ if (texImage->IsCompressed) {
+ dstRowStride = _mesa_compressed_row_stride(texImage->IntFormat,width);
}
+ else {
+ dstRowStride = postConvWidth * texImage->TexFormat->TexelBytes;
+ }
+ ASSERT(texImage->TexFormat->StoreImage);
+ success = texImage->TexFormat->StoreImage(ctx, 2, texImage->Format,
+ texImage->TexFormat,
+ texImage->Data,
+ 0, 0, 0, /* dstX/Y/Zoffset */
+ dstRowStride, dstImageStride,
+ width, height, 1,
+ format, type, pixels, packing);
+ if (!success) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
+ }
+ }
+
+ /* GL_SGIS_generate_mipmap */
+ if (level == texObj->BaseLevel && texObj->GenerateMipmap) {
+ _mesa_generate_mipmap(ctx, target,
+ &ctx->Texture.Unit[ctx->Texture.CurrentUnit],
+ texObj);
}
+
+ _mesa_unmap_teximage_pbo(ctx, packing);
}
-/*
- * This is the software fallback for Driver.TexImage3D().
- * The texture image type will be GLchan.
- * The texture image format will be GL_COLOR_INDEX, GL_INTENSITY,
- * GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_ALPHA, GL_RGB or GL_RGBA.
- *
+/**
+ * This is the software fallback for Driver.TexImage3D()
+ * and Driver.CopyTexImage3D().
+ * \sa _mesa_store_teximage2d()
*/
void
_mesa_store_teximage3d(GLcontext *ctx, GLenum target, GLint level,
struct gl_texture_image *texImage)
{
GLint texelBytes, sizeInBytes;
+ (void) border;
/* choose the texture format */
assert(ctx->Driver.ChooseTextureFormat);
texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
internalFormat, format, type);
assert(texImage->TexFormat);
- texImage->FetchTexel = texImage->TexFormat->FetchTexel3D;
+ texImage->FetchTexelc = texImage->TexFormat->FetchTexel3D;
+ texImage->FetchTexelf = texImage->TexFormat->FetchTexel3Df;
texelBytes = texImage->TexFormat->TexelBytes;
- /* Compute image size, in bytes */
- if (texImage->IsCompressed) {
- assert(ctx->Driver.CompressedTextureSize);
- sizeInBytes = ctx->Driver.CompressedTextureSize(ctx, texImage);
- assert(sizeInBytes > 0);
- texImage->CompressedSize = sizeInBytes;
- }
- else {
- sizeInBytes = width * height * depth * texelBytes;
- }
-
/* allocate memory */
+ if (texImage->IsCompressed)
+ sizeInBytes = texImage->CompressedSize;
+ else
+ sizeInBytes = width * height * depth * texelBytes;
texImage->Data = MESA_PBUFFER_ALLOC(sizeInBytes);
if (!texImage->Data) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage3D");
return;
}
- if (pixels) {
- /* unpack image, apply transfer ops and store in texImage->Data */
- _mesa_transfer_teximage(ctx, 3,
- _mesa_base_tex_format(ctx, internalFormat),
- texImage->TexFormat, texImage->Data,
- width, height, depth, 0, 0, 0,
- texImage->Width * texelBytes,
- texImage->Width * texImage->Height * texelBytes,
- format, type, pixels, packing);
-
- /* GL_SGIS_generate_mipmap */
- if (level == texObj->BaseLevel && texObj->GenerateMipmap) {
- _mesa_generate_mipmap(ctx,
- &ctx->Texture.Unit[ctx->Texture.CurrentUnit],
- texObj);
+ pixels = _mesa_validate_pbo_teximage(ctx, 3, width, height, depth, format, type,
+ pixels, packing, "glTexImage3D");
+ if (!pixels) {
+ /* Note: we check for a NULL image pointer here, _after_ we allocated
+ * memory for the texture. That's what the GL spec calls for.
+ */
+ return;
+ }
+ else {
+ GLint dstRowStride, dstImageStride;
+ GLboolean success;
+ if (texImage->IsCompressed) {
+ dstRowStride = _mesa_compressed_row_stride(texImage->IntFormat,width);
+ dstImageStride = 0;
+ }
+ else {
+ dstRowStride = width * texImage->TexFormat->TexelBytes;
+ dstImageStride = dstRowStride * height;
}
+ ASSERT(texImage->TexFormat->StoreImage);
+ success = texImage->TexFormat->StoreImage(ctx, 3, texImage->Format,
+ texImage->TexFormat,
+ texImage->Data,
+ 0, 0, 0, /* dstX/Y/Zoffset */
+ dstRowStride, dstImageStride,
+ width, height, depth,
+ format, type, pixels, packing);
+ if (!success) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage3D");
+ }
+ }
+
+ /* GL_SGIS_generate_mipmap */
+ if (level == texObj->BaseLevel && texObj->GenerateMipmap) {
+ _mesa_generate_mipmap(ctx, target,
+ &ctx->Texture.Unit[ctx->Texture.CurrentUnit],
+ texObj);
}
+
+ _mesa_unmap_teximage_pbo(ctx, packing);
}
/*
- * This is the software fallback for Driver.TexSubImage1D().
+ * This is the software fallback for Driver.TexSubImage1D()
+ * and Driver.CopyTexSubImage1D().
*/
void
_mesa_store_texsubimage1d(GLcontext *ctx, GLenum target, GLint level,
struct gl_texture_object *texObj,
struct gl_texture_image *texImage)
{
- _mesa_transfer_teximage(ctx, 1,
- _mesa_base_tex_format(ctx, texImage->IntFormat),
- texImage->TexFormat, texImage->Data,
- width, 1, 1, /* src size */
- xoffset, 0, 0, /* dest offsets */
- 0, /* dstRowStride */
- 0, /* dstImageStride */
- format, type, pixels, packing);
+ pixels = _mesa_validate_pbo_teximage(ctx, 1, width, 1, 1, format, type, pixels,
+ packing, "glTexSubImage1D");
+ if (!pixels)
+ return;
+
+ {
+ const GLint dstRowStride = 0, dstImageStride = 0;
+ GLboolean success;
+ ASSERT(texImage->TexFormat->StoreImage);
+ success = texImage->TexFormat->StoreImage(ctx, 1, texImage->Format,
+ texImage->TexFormat,
+ texImage->Data,
+ xoffset, 0, 0, /* offsets */
+ dstRowStride, dstImageStride,
+ width, 1, 1,
+ format, type, pixels, packing);
+ if (!success) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage1D");
+ }
+ }
/* GL_SGIS_generate_mipmap */
if (level == texObj->BaseLevel && texObj->GenerateMipmap) {
- _mesa_generate_mipmap(ctx, &ctx->Texture.Unit[ctx->Texture.CurrentUnit],
+ _mesa_generate_mipmap(ctx, target,
+ &ctx->Texture.Unit[ctx->Texture.CurrentUnit],
texObj);
}
+
+ _mesa_unmap_teximage_pbo(ctx, packing);
}
-/*
- * This is the software fallback for Driver.TexSubImage2D().
+
+/**
+ * This is the software fallback for Driver.TexSubImage2D()
+ * and Driver.CopyTexSubImage2D().
*/
void
_mesa_store_texsubimage2d(GLcontext *ctx, GLenum target, GLint level,
struct gl_texture_object *texObj,
struct gl_texture_image *texImage)
{
- _mesa_transfer_teximage(ctx, 2,
- _mesa_base_tex_format(ctx, texImage->IntFormat),
- texImage->TexFormat, texImage->Data,
- width, height, 1, /* src size */
- xoffset, yoffset, 0, /* dest offsets */
- texImage->Width * texImage->TexFormat->TexelBytes,
- 0, /* dstImageStride */
- format, type, pixels, packing);
+ pixels = _mesa_validate_pbo_teximage(ctx, 2, width, height, 1, format, type,
+ pixels, packing, "glTexSubImage2D");
+ if (!pixels)
+ return;
+
+ {
+ GLint dstRowStride = 0, dstImageStride = 0;
+ GLboolean success;
+ if (texImage->IsCompressed) {
+ dstRowStride = _mesa_compressed_row_stride(texImage->IntFormat,
+ texImage->Width);
+ }
+ else {
+ dstRowStride = texImage->Width * texImage->TexFormat->TexelBytes;
+ }
+ ASSERT(texImage->TexFormat->StoreImage);
+ success = texImage->TexFormat->StoreImage(ctx, 2, texImage->Format,
+ texImage->TexFormat,
+ texImage->Data,
+ xoffset, yoffset, 0,
+ dstRowStride, dstImageStride,
+ width, height, 1,
+ format, type, pixels, packing);
+ if (!success) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage2D");
+ }
+ }
/* GL_SGIS_generate_mipmap */
if (level == texObj->BaseLevel && texObj->GenerateMipmap) {
- _mesa_generate_mipmap(ctx, &ctx->Texture.Unit[ctx->Texture.CurrentUnit],
+ _mesa_generate_mipmap(ctx, target,
+ &ctx->Texture.Unit[ctx->Texture.CurrentUnit],
texObj);
}
+
+ _mesa_unmap_teximage_pbo(ctx, packing);
}
/*
* This is the software fallback for Driver.TexSubImage3D().
+ * and Driver.CopyTexSubImage3D().
*/
void
_mesa_store_texsubimage3d(GLcontext *ctx, GLenum target, GLint level,
struct gl_texture_object *texObj,
struct gl_texture_image *texImage)
{
- const GLint texelBytes = texImage->TexFormat->TexelBytes;
- _mesa_transfer_teximage(ctx, 3,
- _mesa_base_tex_format(ctx, texImage->IntFormat),
- texImage->TexFormat, texImage->Data,
- width, height, depth, /* src size */
- xoffset, yoffset, xoffset, /* dest offsets */
- texImage->Width * texelBytes,
- texImage->Width * texImage->Height * texelBytes,
- format, type, pixels, packing);
+ pixels = _mesa_validate_pbo_teximage(ctx, 3, width, height, depth, format, type,
+ pixels, packing, "glTexSubImage3D");
+ if (!pixels)
+ return;
+
+ {
+ GLint dstRowStride, dstImageStride;
+ GLboolean success;
+ if (texImage->IsCompressed) {
+ dstRowStride = _mesa_compressed_row_stride(texImage->IntFormat,
+ texImage->Width);
+ dstImageStride = 0; /* XXX fix */
+ }
+ else {
+ dstRowStride = texImage->Width * texImage->TexFormat->TexelBytes;
+ dstImageStride = dstRowStride * texImage->Height;
+ }
+ ASSERT(texImage->TexFormat->StoreImage);
+ success = texImage->TexFormat->StoreImage(ctx, 3, texImage->Format,
+ texImage->TexFormat,
+ texImage->Data,
+ xoffset, yoffset, zoffset,
+ dstRowStride, dstImageStride,
+ width, height, depth,
+ format, type, pixels, packing);
+ if (!success) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage3D");
+ }
+ }
+
/* GL_SGIS_generate_mipmap */
if (level == texObj->BaseLevel && texObj->GenerateMipmap) {
- _mesa_generate_mipmap(ctx, &ctx->Texture.Unit[ctx->Texture.CurrentUnit],
+ _mesa_generate_mipmap(ctx, target,
+ &ctx->Texture.Unit[ctx->Texture.CurrentUnit],
texObj);
}
-}
-
+ _mesa_unmap_teximage_pbo(ctx, packing);
+}
/*
struct gl_texture_object *texObj,
struct gl_texture_image *texImage)
{
- /* Nothing here.
- * The device driver has to do it all.
- */
+ /* this space intentionally left blank */
+ (void) ctx;
+ (void) target; (void) level;
+ (void) internalFormat;
+ (void) width; (void) border;
+ (void) imageSize; (void) data;
+ (void) texObj;
+ (void) texImage;
}
struct gl_texture_object *texObj,
struct gl_texture_image *texImage)
{
- /* Nothing here.
- * The device driver has to do it all.
+ (void) width; (void) height; (void) border;
+
+ /* This is pretty simple, basically just do a memcpy without worrying
+ * about the usual image unpacking or image transfer operations.
*/
+ ASSERT(texObj);
+ ASSERT(texImage);
+ ASSERT(texImage->Width > 0);
+ ASSERT(texImage->Height > 0);
+ ASSERT(texImage->Depth == 1);
+ ASSERT(texImage->Data == NULL); /* was freed in glCompressedTexImage2DARB */
+
+ /* choose the texture format */
+ assert(ctx->Driver.ChooseTextureFormat);
+ texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
+ internalFormat, 0, 0);
+ assert(texImage->TexFormat);
+ texImage->FetchTexelc = texImage->TexFormat->FetchTexel2D;
+ texImage->FetchTexelf = texImage->TexFormat->FetchTexel2Df;
+
+ /* allocate storage */
+ texImage->Data = MESA_PBUFFER_ALLOC(imageSize);
+ if (!texImage->Data) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage2DARB");
+ return;
+ }
+
+ data = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, data, &ctx->Unpack,
+ "glCompressedTexImage2D");
+ if (!data)
+ return;
+
+ /* copy the data */
+ ASSERT(texImage->CompressedSize == (GLuint) imageSize);
+ MEMCPY(texImage->Data, data, imageSize);
+
+ /* GL_SGIS_generate_mipmap */
+ if (level == texObj->BaseLevel && texObj->GenerateMipmap) {
+ _mesa_generate_mipmap(ctx, target,
+ &ctx->Texture.Unit[ctx->Texture.CurrentUnit],
+ texObj);
+ }
+
+ _mesa_unmap_teximage_pbo(ctx, &ctx->Unpack);
}
struct gl_texture_object *texObj,
struct gl_texture_image *texImage)
{
- /* Nothing here.
- * The device driver has to do it all.
- */
+ /* this space intentionally left blank */
+ (void) ctx;
+ (void) target; (void) level;
+ (void) internalFormat;
+ (void) width; (void) height; (void) depth;
+ (void) border;
+ (void) imageSize; (void) data;
+ (void) texObj;
+ (void) texImage;
}
-/*
- * Fallback for Driver.GetCompressedTexImage3D()
- * This will probably work find for hardware drivers. That is, hardware
- * drivers won't have to override this function, unless the compressed
- * texture must first be fetched from the TRAM.
+/**
+ * Fallback for Driver.CompressedTexSubImage1D()
*/
void
-_mesa_get_compressed_teximage(GLcontext *ctx, GLenum target,
- GLint level, void *image,
- const struct gl_texture_object *texObj,
- struct gl_texture_image *texImage)
+_mesa_store_compressed_texsubimage1d(GLcontext *ctx, GLenum target,
+ GLint level,
+ GLint xoffset, GLsizei width,
+ GLenum format,
+ GLsizei imageSize, const GLvoid *data,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
{
- assert(texImage->IsCompressed);
- assert(texImage->CompressedSize > 0);
- MEMCPY(image, texImage->Data, texImage->CompressedSize);
+ /* this space intentionally left blank */
+ (void) ctx;
+ (void) target; (void) level;
+ (void) xoffset; (void) width;
+ (void) format;
+ (void) imageSize; (void) data;
+ (void) texObj;
+ (void) texImage;
}
-
-/*
- * This is the fallback for Driver.TestProxyTexImage().
+/**
+ * Fallback for Driver.CompressedTexSubImage2D()
*/
-GLboolean
-_mesa_test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level,
- GLint internalFormat, GLenum format, GLenum type,
- GLint width, GLint height, GLint depth, GLint border)
+void
+_mesa_store_compressed_texsubimage2d(GLcontext *ctx, GLenum target,
+ GLint level,
+ GLint xoffset, GLint yoffset,
+ GLsizei width, GLsizei height,
+ GLenum format,
+ GLsizei imageSize, const GLvoid *data,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
{
- struct gl_texture_unit *texUnit;
- struct gl_texture_object *texObj;
- struct gl_texture_image *texImage;
-
+ GLint bytesPerRow, destRowStride, srcRowStride;
+ GLint i, rows;
+ GLubyte *dest;
+ const GLubyte *src;
(void) format;
- (void) type;
- texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
- texObj = _mesa_select_tex_object(ctx, texUnit, target);
- texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
+ /* these should have been caught sooner */
+ ASSERT((width & 3) == 0 || width == 2 || width == 1);
+ ASSERT((height & 3) == 0 || height == 2 || height == 1);
+ ASSERT((xoffset & 3) == 0);
+ ASSERT((yoffset & 3) == 0);
- /* We always pass.
- * The core Mesa code will have already tested the image size, etc.
- * If a driver has more stringent texture limits to enforce it will
- * have to override this function.
- */
- /* choose the texture format */
- assert(ctx->Driver.ChooseTextureFormat);
- texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
- internalFormat, format, type);
- assert(texImage->TexFormat);
+ data = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, data, &ctx->Unpack,
+ "glCompressedTexSubImage2D");
+ if (!data)
+ return;
- return GL_TRUE;
+ srcRowStride = _mesa_compressed_row_stride(texImage->IntFormat, width);
+ src = (const GLubyte *) data;
+
+ destRowStride = _mesa_compressed_row_stride(texImage->IntFormat,
+ texImage->Width);
+ dest = _mesa_compressed_image_address(xoffset, yoffset, 0,
+ texImage->IntFormat,
+ texImage->Width,
+ (GLubyte*) texImage->Data);
+
+ bytesPerRow = srcRowStride;
+ rows = height / 4;
+
+ for (i = 0; i < rows; i++) {
+ MEMCPY(dest, src, bytesPerRow);
+ dest += destRowStride;
+ src += srcRowStride;
+ }
+
+ /* GL_SGIS_generate_mipmap */
+ if (level == texObj->BaseLevel && texObj->GenerateMipmap) {
+ _mesa_generate_mipmap(ctx, target,
+ &ctx->Texture.Unit[ctx->Texture.CurrentUnit],
+ texObj);
+ }
+
+ _mesa_unmap_teximage_pbo(ctx, &ctx->Unpack);
}
+/**
+ * Fallback for Driver.CompressedTexSubImage3D()
+ */
+void
+_mesa_store_compressed_texsubimage3d(GLcontext *ctx, GLenum target,
+ GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLenum format,
+ GLsizei imageSize, const GLvoid *data,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ /* this space intentionally left blank */
+ (void) ctx;
+ (void) target; (void) level;
+ (void) xoffset; (void) yoffset; (void) zoffset;
+ (void) width; (void) height; (void) depth;
+ (void) format;
+ (void) imageSize; (void) data;
+ (void) texObj;
+ (void) texImage;
+}
+
/*
* Average together two rows of a source image to produce a single new
const GLuint k0 = (srcWidth == dstWidth) ? 0 : 1;
const GLuint colStride = (srcWidth == dstWidth) ? 1 : 2;
+ /* This assertion is no longer valid with non-power-of-2 textures
assert(srcWidth == dstWidth || srcWidth == 2 * dstWidth);
+ */
switch (format->MesaFormat) {
case MESA_FORMAT_RGBA:
case MESA_FORMAT_ALPHA:
case MESA_FORMAT_LUMINANCE:
case MESA_FORMAT_INTENSITY:
- case MESA_FORMAT_COLOR_INDEX:
{
GLuint i, j, k;
const GLchan *rowA = (const GLchan *) srcRowA;
}
}
return;
- case MESA_FORMAT_DEPTH_COMPONENT:
+ case MESA_FORMAT_DEPTH_COMPONENT_FLOAT32:
{
GLuint i, j, k;
const GLfloat *rowA = (const GLfloat *) srcRowA;
}
}
return;
+ case MESA_FORMAT_DEPTH_COMPONENT16:
+ {
+ GLuint i, j, k;
+ const GLushort *rowA = (const GLushort *) srcRowA;
+ const GLushort *rowB = (const GLushort *) srcRowB;
+ GLushort *dst = (GLushort *) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) / 4;
+ }
+ }
+ return;
/* Begin hardware formats */
case MESA_FORMAT_RGBA8888:
+ case MESA_FORMAT_RGBA8888_REV:
case MESA_FORMAT_ARGB8888:
+ case MESA_FORMAT_ARGB8888_REV:
{
GLuint i, j, k;
const GLubyte (*rowA)[4] = (const GLubyte (*)[4]) srcRowA;
}
return;
case MESA_FORMAT_RGB888:
+ case MESA_FORMAT_BGR888:
{
GLuint i, j, k;
const GLubyte (*rowA)[3] = (const GLubyte (*)[3]) srcRowA;
}
return;
case MESA_FORMAT_RGB565:
+ case MESA_FORMAT_RGB565_REV:
{
GLuint i, j, k;
const GLushort *rowA = (const GLushort *) srcRowA;
const GLint rowAb1 = (rowA[k] >> 11) & 0x1f;
const GLint rowBb0 = (rowB[j] >> 11) & 0x1f;
const GLint rowBb1 = (rowB[k] >> 11) & 0x1f;
- const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 4;
- const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 4;
- const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 4;
+ const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2;
+ const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2;
+ const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2;
dst[i] = (blue << 11) | (green << 5) | red;
}
}
return;
case MESA_FORMAT_ARGB4444:
+ case MESA_FORMAT_ARGB4444_REV:
{
GLuint i, j, k;
const GLushort *rowA = (const GLushort *) srcRowA;
const GLint rowAa1 = (rowA[k] >> 12) & 0xf;
const GLint rowBa0 = (rowB[j] >> 12) & 0xf;
const GLint rowBa1 = (rowB[k] >> 12) & 0xf;
- const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 4;
- const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 4;
- const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 4;
- const GLint alpha = (rowAa0 + rowAa1 + rowBa0 + rowBa1) >> 4;
+ const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2;
+ const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2;
+ const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2;
+ const GLint alpha = (rowAa0 + rowAa1 + rowBa0 + rowBa1) >> 2;
dst[i] = (alpha << 12) | (blue << 8) | (green << 4) | red;
}
}
return;
case MESA_FORMAT_ARGB1555:
+ case MESA_FORMAT_ARGB1555_REV: /* XXX broken? */
{
GLuint i, j, k;
const GLushort *rowA = (const GLushort *) srcRowA;
const GLint rowAa1 = (rowA[k] >> 15) & 0x1;
const GLint rowBa0 = (rowB[j] >> 15) & 0x1;
const GLint rowBa1 = (rowB[k] >> 15) & 0x1;
- const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 4;
- const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 4;
- const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 4;
- const GLint alpha = (rowAa0 + rowAa1 + rowBa0 + rowBa1) >> 4;
+ const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2;
+ const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2;
+ const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2;
+ const GLint alpha = (rowAa0 + rowAa1 + rowBa0 + rowBa1) >> 2;
dst[i] = (alpha << 15) | (blue << 10) | (green << 5) | red;
}
}
return;
case MESA_FORMAT_AL88:
+ case MESA_FORMAT_AL88_REV:
{
GLuint i, j, k;
const GLubyte (*rowA)[2] = (const GLubyte (*)[2]) srcRowA;
const GLint rowAb1 = (rowA[k] >> 5) & 0x7;
const GLint rowBb0 = (rowB[j] >> 5) & 0x7;
const GLint rowBb1 = (rowB[k] >> 5) & 0x7;
- const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 4;
- const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 4;
- const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 4;
+ const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2;
+ const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2;
+ const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2;
dst[i] = (blue << 5) | (green << 2) | red;
}
}
}
}
return;
+ case MESA_FORMAT_RGBA_FLOAT32:
+ {
+ GLuint i, j, k;
+ const GLfloat (*rowA)[4] = (const GLfloat (*)[4]) srcRowA;
+ const GLfloat (*rowB)[4] = (const GLfloat (*)[4]) srcRowB;
+ GLfloat (*dst)[4] = (GLfloat (*)[4]) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ dst[i][0] = (rowA[j][0] + rowA[k][0] +
+ rowB[j][0] + rowB[k][0]) * 0.25F;
+ dst[i][1] = (rowA[j][1] + rowA[k][1] +
+ rowB[j][1] + rowB[k][1]) * 0.25F;
+ dst[i][2] = (rowA[j][2] + rowA[k][2] +
+ rowB[j][2] + rowB[k][2]) * 0.25F;
+ dst[i][3] = (rowA[j][3] + rowA[k][3] +
+ rowB[j][3] + rowB[k][3]) * 0.25F;
+ }
+ }
+ return;
+ case MESA_FORMAT_RGBA_FLOAT16:
+ {
+ GLuint i, j, k, comp;
+ const GLhalfARB (*rowA)[4] = (const GLhalfARB (*)[4]) srcRowA;
+ const GLhalfARB (*rowB)[4] = (const GLhalfARB (*)[4]) srcRowB;
+ GLhalfARB (*dst)[4] = (GLhalfARB (*)[4]) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ for (comp = 0; comp < 4; comp++) {
+ GLfloat aj, ak, bj, bk;
+ aj = _mesa_half_to_float(rowA[j][comp]);
+ ak = _mesa_half_to_float(rowA[k][comp]);
+ bj = _mesa_half_to_float(rowB[j][comp]);
+ bk = _mesa_half_to_float(rowB[k][comp]);
+ dst[i][comp] = _mesa_float_to_half((aj + ak + bj + bk) * 0.25F);
+ }
+ }
+ }
+ return;
+ case MESA_FORMAT_RGB_FLOAT32:
+ {
+ GLuint i, j, k;
+ const GLfloat (*rowA)[3] = (const GLfloat (*)[3]) srcRowA;
+ const GLfloat (*rowB)[3] = (const GLfloat (*)[3]) srcRowB;
+ GLfloat (*dst)[3] = (GLfloat (*)[3]) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ dst[i][0] = (rowA[j][0] + rowA[k][0] +
+ rowB[j][0] + rowB[k][0]) * 0.25F;
+ dst[i][1] = (rowA[j][1] + rowA[k][1] +
+ rowB[j][1] + rowB[k][1]) * 0.25F;
+ dst[i][2] = (rowA[j][2] + rowA[k][2] +
+ rowB[j][2] + rowB[k][2]) * 0.25F;
+ }
+ }
+ return;
+ case MESA_FORMAT_RGB_FLOAT16:
+ {
+ GLuint i, j, k, comp;
+ const GLhalfARB (*rowA)[3] = (const GLhalfARB (*)[3]) srcRowA;
+ const GLhalfARB (*rowB)[3] = (const GLhalfARB (*)[3]) srcRowB;
+ GLhalfARB (*dst)[3] = (GLhalfARB (*)[3]) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ for (comp = 0; comp < 3; comp++) {
+ GLfloat aj, ak, bj, bk;
+ aj = _mesa_half_to_float(rowA[j][comp]);
+ ak = _mesa_half_to_float(rowA[k][comp]);
+ bj = _mesa_half_to_float(rowB[j][comp]);
+ bk = _mesa_half_to_float(rowB[k][comp]);
+ dst[i][comp] = _mesa_float_to_half((aj + ak + bj + bk) * 0.25F);
+ }
+ }
+ }
+ return;
+ case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32:
+ {
+ GLuint i, j, k;
+ const GLfloat (*rowA)[2] = (const GLfloat (*)[2]) srcRowA;
+ const GLfloat (*rowB)[2] = (const GLfloat (*)[2]) srcRowB;
+ GLfloat (*dst)[2] = (GLfloat (*)[2]) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ dst[i][0] = (rowA[j][0] + rowA[k][0] +
+ rowB[j][0] + rowB[k][0]) * 0.25F;
+ dst[i][1] = (rowA[j][1] + rowA[k][1] +
+ rowB[j][1] + rowB[k][1]) * 0.25F;
+ }
+ }
+ return;
+ case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16:
+ {
+ GLuint i, j, k, comp;
+ const GLhalfARB (*rowA)[2] = (const GLhalfARB (*)[2]) srcRowA;
+ const GLhalfARB (*rowB)[2] = (const GLhalfARB (*)[2]) srcRowB;
+ GLhalfARB (*dst)[2] = (GLhalfARB (*)[2]) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ for (comp = 0; comp < 2; comp++) {
+ GLfloat aj, ak, bj, bk;
+ aj = _mesa_half_to_float(rowA[j][comp]);
+ ak = _mesa_half_to_float(rowA[k][comp]);
+ bj = _mesa_half_to_float(rowB[j][comp]);
+ bk = _mesa_half_to_float(rowB[k][comp]);
+ dst[i][comp] = _mesa_float_to_half((aj + ak + bj + bk) * 0.25F);
+ }
+ }
+ }
+ return;
+ case MESA_FORMAT_ALPHA_FLOAT32:
+ case MESA_FORMAT_LUMINANCE_FLOAT32:
+ case MESA_FORMAT_INTENSITY_FLOAT32:
+ {
+ GLuint i, j, k;
+ const GLfloat *rowA = (const GLfloat *) srcRowA;
+ const GLfloat *rowB = (const GLfloat *) srcRowB;
+ GLfloat *dst = (GLfloat *) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) * 0.25F;
+ }
+ }
+ return;
+ case MESA_FORMAT_ALPHA_FLOAT16:
+ case MESA_FORMAT_LUMINANCE_FLOAT16:
+ case MESA_FORMAT_INTENSITY_FLOAT16:
+ {
+ GLuint i, j, k;
+ const GLhalfARB *rowA = (const GLhalfARB *) srcRowA;
+ const GLhalfARB *rowB = (const GLhalfARB *) srcRowB;
+ GLhalfARB *dst = (GLhalfARB *) dstRow;
+ for (i = j = 0, k = k0; i < (GLuint) dstWidth;
+ i++, j += colStride, k += colStride) {
+ GLfloat aj, ak, bj, bk;
+ aj = _mesa_half_to_float(rowA[j]);
+ ak = _mesa_half_to_float(rowA[k]);
+ bj = _mesa_half_to_float(rowB[j]);
+ bk = _mesa_half_to_float(rowB[k]);
+ dst[i] = _mesa_float_to_half((aj + ak + bj + bk) * 0.25F);
+ }
+ }
+ return;
+
default:
_mesa_problem(NULL, "bad format in do_row()");
}
const GLint dstRowStride = bpt * dstWidth;
const GLubyte *srcA, *srcB;
GLubyte *dst;
- GLint row, colStride;
-
- colStride = (srcWidth == dstWidth) ? 1 : 2;
+ GLint row;
/* Compute src and dst pointers, skipping any border */
srcA = srcPtr + border * ((srcWidth + 1) * bpt);
*/
/*
- printf("mip3d %d x %d x %d -> %d x %d x %d\n",
+ _mesa_printf("mip3d %d x %d x %d -> %d x %d x %d\n",
srcWidth, srcHeight, srcDepth, dstWidth, dstHeight, dstDepth);
*/
* Stop at texObj's MaxLevel or when we get to the 1x1 texture.
*/
void
-_mesa_generate_mipmap(GLcontext *ctx,
+_mesa_generate_mipmap(GLcontext *ctx, GLenum target,
const struct gl_texture_unit *texUnit,
struct gl_texture_object *texObj)
{
- const GLenum targets1D[] = { GL_TEXTURE_1D, 0 };
- const GLenum targets2D[] = { GL_TEXTURE_2D, 0 };
- const GLenum targets3D[] = { GL_TEXTURE_3D, 0 };
- const GLenum targetsCube[] = { GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB,
- GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB,
- GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB,
- GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB,
- GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB,
- GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB,
- 0 };
- const GLenum targetsRect[] = { GL_TEXTURE_RECTANGLE_NV, 0 };
- const GLenum *targets;
- GLint level;
- GLint maxLevels = 0;
+ const struct gl_texture_image *srcImage;
+ const struct gl_texture_format *convertFormat;
+ const GLubyte *srcData = NULL;
+ GLubyte *dstData = NULL;
+ GLint level, maxLevels;
ASSERT(texObj);
- ASSERT(texObj->Image[texObj->BaseLevel]);
+ srcImage = texObj->Image[0][texObj->BaseLevel];
+ ASSERT(srcImage);
- switch (texObj->Target) {
- case GL_TEXTURE_1D:
- targets = targets1D;
- maxLevels = ctx->Const.MaxTextureLevels;
- break;
- case GL_TEXTURE_2D:
- targets = targets2D;
- maxLevels = ctx->Const.MaxTextureLevels;
- break;
- case GL_TEXTURE_3D:
- targets = targets3D;
- maxLevels = ctx->Const.Max3DTextureLevels;
- break;
- case GL_TEXTURE_CUBE_MAP_ARB:
- targets = targetsCube;
- maxLevels = ctx->Const.MaxCubeTextureLevels;
- break;
- case GL_TEXTURE_RECTANGLE_NV:
- targets = targetsRect;
- maxLevels = 1;
- break;
- default:
- _mesa_problem(ctx,
- "Bad texture object dimension in _mesa_generate_mipmaps");
- return;
+ maxLevels = _mesa_max_texture_levels(ctx, texObj->Target);
+ ASSERT(maxLevels > 0); /* bad target */
+
+ /* Find convertFormat - the format that do_row() will process */
+ if (srcImage->IsCompressed) {
+ /* setup for compressed textures */
+ GLuint row;
+ GLint components, size;
+ GLchan *dst;
+
+ assert(texObj->Target == GL_TEXTURE_2D);
+
+ if (srcImage->Format == GL_RGB) {
+ convertFormat = &_mesa_texformat_rgb;
+ components = 3;
+ }
+ else if (srcImage->Format == GL_RGBA) {
+ convertFormat = &_mesa_texformat_rgba;
+ components = 4;
+ }
+ else {
+ _mesa_problem(ctx, "bad srcImage->Format in _mesa_generate_mipmaps");
+ return;
+ }
+
+ /* allocate storage for uncompressed GL_RGB or GL_RGBA images */
+ size = _mesa_bytes_per_pixel(srcImage->Format, CHAN_TYPE)
+ * srcImage->Width * srcImage->Height * srcImage->Depth + 20;
+ /* 20 extra bytes, just be safe when calling last FetchTexel */
+ srcData = (GLubyte *) MALLOC(size);
+ if (!srcData) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "generate mipmaps");
+ return;
+ }
+ dstData = (GLubyte *) MALLOC(size / 2); /* 1/4 would probably be OK */
+ if (!dstData) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "generate mipmaps");
+ FREE((void *) srcData);
+ return;
+ }
+
+ /* decompress base image here */
+ dst = (GLchan *) srcData;
+ for (row = 0; row < srcImage->Height; row++) {
+ GLuint col;
+ for (col = 0; col < srcImage->Width; col++) {
+ srcImage->FetchTexelc(srcImage, col, row, 0, dst);
+ dst += components;
+ }
+ }
+ }
+ else {
+ /* uncompressed */
+ convertFormat = srcImage->TexFormat;
}
for (level = texObj->BaseLevel; level < texObj->MaxLevel
GLint srcWidth, srcHeight, srcDepth;
GLint dstWidth, dstHeight, dstDepth;
GLint border, bytesPerTexel;
- GLint t;
- srcImage = texObj->Image[level];
+ /* get src image parameters */
+ srcImage = _mesa_select_tex_image(ctx, texUnit, target, level);
ASSERT(srcImage);
srcWidth = srcImage->Width;
srcHeight = srcImage->Height;
srcDepth = srcImage->Depth;
border = srcImage->Border;
- bytesPerTexel = srcImage->TexFormat->TexelBytes;
/* compute next (level+1) image size */
if (srcWidth - 2 * border > 1) {
dstHeight == srcHeight &&
dstDepth == srcDepth) {
/* all done */
+ if (srcImage->IsCompressed) {
+ FREE((void *) srcData);
+ FREE(dstData);
+ }
return;
}
- /* Need this loop just because of cubemaps */
- for (t = 0; targets[t]; t++) {
- ASSERT(t < 6);
+ /* get dest gl_texture_image */
+ dstImage = _mesa_get_tex_image(ctx, texUnit, target, level + 1);
+ if (!dstImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "generating mipmaps");
+ return;
+ }
- dstImage = _mesa_select_tex_image(ctx, texUnit, targets[t], level+1);
- if (!dstImage) {
- dstImage = _mesa_alloc_texture_image();
- if (!dstImage) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "generating mipmaps");
- return;
- }
- _mesa_set_tex_image(texObj, targets[t], level + 1, dstImage);
+ /* Free old image data */
+ if (dstImage->Data)
+ MESA_PBUFFER_FREE(dstImage->Data);
+
+ /* initialize new image */
+ _mesa_init_teximage_fields(ctx, target, dstImage, dstWidth, dstHeight,
+ dstDepth, border, srcImage->IntFormat);
+ dstImage->DriverData = NULL;
+ dstImage->TexFormat = srcImage->TexFormat;
+ dstImage->FetchTexelc = srcImage->FetchTexelc;
+ dstImage->FetchTexelf = srcImage->FetchTexelf;
+ ASSERT(dstImage->TexFormat);
+ ASSERT(dstImage->FetchTexelc);
+ ASSERT(dstImage->FetchTexelf);
+
+ /* Alloc new teximage data buffer.
+ * Setup src and dest data pointers.
+ */
+ if (dstImage->IsCompressed) {
+ ASSERT(dstImage->CompressedSize > 0); /* set by init_teximage_fields*/
+ dstImage->Data = MESA_PBUFFER_ALLOC(dstImage->CompressedSize);
+ if (!dstImage->Data) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "generating mipmaps");
+ return;
}
-
- /* Free old image data */
- if (dstImage->Data)
- MESA_PBUFFER_FREE(dstImage->Data);
-
- /* initialize new image */
- _mesa_init_teximage_fields(ctx, t, dstImage, dstWidth, dstHeight,
- dstDepth, border, srcImage->Format);
- dstImage->DriverData = NULL;
- dstImage->TexFormat = srcImage->TexFormat;
- dstImage->FetchTexel = srcImage->FetchTexel;
- ASSERT(dstImage->TexFormat);
- ASSERT(dstImage->FetchTexel);
-
+ /* srcData and dstData are already set */
+ ASSERT(srcData);
+ ASSERT(dstData);
+ }
+ else {
+ bytesPerTexel = srcImage->TexFormat->TexelBytes;
ASSERT(dstWidth * dstHeight * dstDepth * bytesPerTexel > 0);
-
- /* alloc new image buffer */
dstImage->Data = MESA_PBUFFER_ALLOC(dstWidth * dstHeight * dstDepth
- * bytesPerTexel);
+ * bytesPerTexel);
if (!dstImage->Data) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "generating mipmaps");
return;
}
+ srcData = (const GLubyte *) srcImage->Data;
+ dstData = (GLubyte *) dstImage->Data;
+ }
- /*
- * We use simple 2x2 averaging to compute the next mipmap level.
- */
- switch (texObj->Target) {
+ /*
+ * We use simple 2x2 averaging to compute the next mipmap level.
+ */
+ switch (target) {
case GL_TEXTURE_1D:
- make_1d_mipmap(srcImage->TexFormat, border,
- srcWidth, (const GLubyte *) srcImage->Data,
- dstWidth, (GLubyte *) dstImage->Data);
+ make_1d_mipmap(convertFormat, border,
+ srcWidth, srcData,
+ dstWidth, dstData);
break;
case GL_TEXTURE_2D:
- case GL_TEXTURE_CUBE_MAP_ARB:
- make_2d_mipmap(srcImage->TexFormat, border,
- srcWidth, srcHeight, (const GLubyte *) srcImage->Data,
- dstWidth, dstHeight, (GLubyte *) dstImage->Data);
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
+ make_2d_mipmap(convertFormat, border,
+ srcWidth, srcHeight, srcData,
+ dstWidth, dstHeight, dstData);
break;
case GL_TEXTURE_3D:
- make_3d_mipmap(srcImage->TexFormat, border,
- srcWidth, srcHeight, srcDepth, (const GLubyte *) srcImage->Data,
- dstWidth, dstHeight, dstDepth, (GLubyte *) dstImage->Data);
+ make_3d_mipmap(convertFormat, border,
+ srcWidth, srcHeight, srcDepth, srcData,
+ dstWidth, dstHeight, dstDepth, dstData);
break;
case GL_TEXTURE_RECTANGLE_NV:
/* no mipmaps, do nothing */
default:
_mesa_problem(ctx, "bad dimensions in _mesa_generate_mipmaps");
return;
+ }
+
+ if (dstImage->IsCompressed) {
+ GLubyte *temp;
+ /* compress image from dstData into dstImage->Data */
+ const GLenum srcFormat = convertFormat->BaseFormat;
+ GLint dstRowStride = _mesa_compressed_row_stride(srcImage->IntFormat,
+ dstWidth);
+ ASSERT(srcFormat == GL_RGB || srcFormat == GL_RGBA);
+ dstImage->TexFormat->StoreImage(ctx, 2, dstImage->Format,
+ dstImage->TexFormat,
+ dstImage->Data,
+ 0, 0, 0, /* dstX/Y/Zoffset */
+ dstRowStride, 0, /* strides */
+ dstWidth, dstHeight, 1, /* size */
+ srcFormat, CHAN_TYPE,
+ dstData, /* src data, actually */
+ &ctx->DefaultPacking);
+ /* swap src and dest pointers */
+ temp = (GLubyte *) srcData;
+ srcData = dstData;
+ dstData = temp;
+ }
+
+ } /* loop over mipmap levels */
+}
+
+
+/**
+ * Helper function for drivers which need to rescale texture images to
+ * certain aspect ratios.
+ * Nearest filtering only (for broken hardware that can't support
+ * all aspect ratios). This can be made a lot faster, but I don't
+ * really care enough...
+ */
+void
+_mesa_rescale_teximage2d (GLuint bytesPerPixel,
+ GLuint srcStrideInPixels,
+ GLuint dstRowStride,
+ GLint srcWidth, GLint srcHeight,
+ GLint dstWidth, GLint dstHeight,
+ const GLvoid *srcImage, GLvoid *dstImage)
+{
+ GLint row, col;
+
+#define INNER_LOOP( TYPE, HOP, WOP ) \
+ for ( row = 0 ; row < dstHeight ; row++ ) { \
+ GLint srcRow = row HOP hScale; \
+ for ( col = 0 ; col < dstWidth ; col++ ) { \
+ GLint srcCol = col WOP wScale; \
+ dst[col] = src[srcRow * srcStrideInPixels + srcCol]; \
+ } \
+ dst = (TYPE *) ((GLubyte *) dst + dstRowStride); \
+ } \
+
+#define RESCALE_IMAGE( TYPE ) \
+do { \
+ const TYPE *src = (const TYPE *)srcImage; \
+ TYPE *dst = (TYPE *)dstImage; \
+ \
+ if ( srcHeight < dstHeight ) { \
+ const GLint hScale = dstHeight / srcHeight; \
+ if ( srcWidth < dstWidth ) { \
+ const GLint wScale = dstWidth / srcWidth; \
+ INNER_LOOP( TYPE, /, / ); \
+ } \
+ else { \
+ const GLint wScale = srcWidth / dstWidth; \
+ INNER_LOOP( TYPE, /, * ); \
+ } \
+ } \
+ else { \
+ const GLint hScale = srcHeight / dstHeight; \
+ if ( srcWidth < dstWidth ) { \
+ const GLint wScale = dstWidth / srcWidth; \
+ INNER_LOOP( TYPE, *, / ); \
+ } \
+ else { \
+ const GLint wScale = srcWidth / dstWidth; \
+ INNER_LOOP( TYPE, *, * ); \
+ } \
+ } \
+} while (0)
+
+ switch ( bytesPerPixel ) {
+ case 4:
+ RESCALE_IMAGE( GLuint );
+ break;
+
+ case 2:
+ RESCALE_IMAGE( GLushort );
+ break;
+
+ case 1:
+ RESCALE_IMAGE( GLubyte );
+ break;
+ default:
+ _mesa_problem(NULL,"unexpected bytes/pixel in _mesa_rescale_teximage2d");
+ }
+}
+
+
+/**
+ * Upscale an image by replication, not (typical) stretching.
+ * We use this when the image width or height is less than a
+ * certain size (4, 8) and we need to upscale an image.
+ */
+void
+_mesa_upscale_teximage2d (GLsizei inWidth, GLsizei inHeight,
+ GLsizei outWidth, GLsizei outHeight,
+ GLint comps, const GLchan *src, GLint srcRowStride,
+ GLchan *dest )
+{
+ GLint i, j, k;
+
+ ASSERT(outWidth >= inWidth);
+ ASSERT(outHeight >= inHeight);
+#if 0
+ ASSERT(inWidth == 1 || inWidth == 2 || inHeight == 1 || inHeight == 2);
+ ASSERT((outWidth & 3) == 0);
+ ASSERT((outHeight & 3) == 0);
+#endif
+
+ for (i = 0; i < outHeight; i++) {
+ const GLint ii = i % inHeight;
+ for (j = 0; j < outWidth; j++) {
+ const GLint jj = j % inWidth;
+ for (k = 0; k < comps; k++) {
+ dest[(i * outWidth + j) * comps + k]
+ = src[ii * srcRowStride + jj * comps + k];
}
- } /* loop over tex image targets */
- } /* loop over tex levels */
+ }
+ }
+}
+
+
+
+/**
+ * This is the software fallback for Driver.GetTexImage().
+ * All error checking will have been done before this routine is called.
+ */
+void
+_mesa_get_teximage(GLcontext *ctx, GLenum target, GLint level,
+ GLenum format, GLenum type, GLvoid *pixels,
+ const struct gl_texture_object *texObj,
+ const struct gl_texture_image *texImage)
+{
+ GLuint dimensions = (target == GL_TEXTURE_3D) ? 3 : 2;
+
+ if (ctx->Pack.BufferObj->Name) {
+ /* pack texture image into a PBO */
+ GLubyte *buf;
+ if (!_mesa_validate_pbo_access(dimensions, &ctx->Pack, texImage->Width,
+ texImage->Height, texImage->Depth,
+ format, type, pixels)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glGetTexImage(invalid PBO access)");
+ return;
+ }
+ buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT,
+ GL_WRITE_ONLY_ARB,
+ ctx->Pack.BufferObj);
+ if (!buf) {
+ /* buffer is already mapped - that's an error */
+ _mesa_error(ctx, GL_INVALID_OPERATION,"glGetTexImage(PBO is mapped)");
+ return;
+ }
+ pixels = ADD_POINTERS(buf, pixels);
+ }
+ else if (!pixels) {
+ /* not an error */
+ return;
+ }
+
+ {
+ const GLint width = texImage->Width;
+ const GLint height = texImage->Height;
+ const GLint depth = texImage->Depth;
+ GLint img, row;
+ for (img = 0; img < depth; img++) {
+ for (row = 0; row < height; row++) {
+ /* compute destination address in client memory */
+ GLvoid *dest = _mesa_image_address( dimensions, &ctx->Pack, pixels,
+ width, height, format, type,
+ img, row, 0);
+ assert(dest);
+
+ if (format == GL_COLOR_INDEX) {
+ GLuint indexRow[MAX_WIDTH];
+ GLint col;
+ /* Can't use FetchTexel here because that returns RGBA */
+ if (texImage->TexFormat->IndexBits == 8) {
+ const GLubyte *src = (const GLubyte *) texImage->Data;
+ for (col = 0; col < width; col++) {
+ indexRow[col] = src[texImage->Width *
+ (img * texImage->Height + row) + col];
+ }
+ }
+ else if (texImage->TexFormat->IndexBits == 16) {
+ const GLushort *src = (const GLushort *) texImage->Data;
+ for (col = 0; col < width; col++) {
+ indexRow[col] = src[texImage->Width *
+ (img * texImage->Height + row) + col];
+ }
+ }
+ else {
+ _mesa_problem(ctx,
+ "Color index problem in _mesa_GetTexImage");
+ }
+ _mesa_pack_index_span(ctx, width, type, dest,
+ indexRow, &ctx->Pack,
+ 0 /* no image transfer */);
+ }
+ else if (format == GL_DEPTH_COMPONENT) {
+ GLfloat depthRow[MAX_WIDTH];
+ GLint col;
+ for (col = 0; col < width; col++) {
+ (*texImage->FetchTexelf)(texImage, col, row, img,
+ depthRow + col);
+ }
+ _mesa_pack_depth_span(ctx, width, dest, type,
+ depthRow, &ctx->Pack);
+ }
+ else if (format == GL_YCBCR_MESA) {
+ /* No pixel transfer */
+ const GLint rowstride = texImage->RowStride;
+ MEMCPY(dest,
+ (const GLushort *) texImage->Data + row * rowstride,
+ width * sizeof(GLushort));
+ /* check for byte swapping */
+ if ((texImage->TexFormat->MesaFormat == MESA_FORMAT_YCBCR
+ && type == GL_UNSIGNED_SHORT_8_8_REV_MESA) ||
+ (texImage->TexFormat->MesaFormat == MESA_FORMAT_YCBCR_REV
+ && type == GL_UNSIGNED_SHORT_8_8_MESA)) {
+ if (!ctx->Pack.SwapBytes)
+ _mesa_swap2((GLushort *) dest, width);
+ }
+ else if (ctx->Pack.SwapBytes) {
+ _mesa_swap2((GLushort *) dest, width);
+ }
+ }
+ else {
+ /* general case: convert row to RGBA format */
+ GLfloat rgba[MAX_WIDTH][4];
+ GLint col;
+ for (col = 0; col < width; col++) {
+ (*texImage->FetchTexelf)(texImage, col, row, img, rgba[col]);
+ }
+ _mesa_pack_rgba_span_float(ctx, width,
+ (const GLfloat (*)[4]) rgba,
+ format, type, dest, &ctx->Pack,
+ 0 /* no image transfer */);
+ } /* format */
+ } /* row */
+ } /* img */
+ }
+
+ if (ctx->Pack.BufferObj->Name) {
+ ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT,
+ ctx->Pack.BufferObj);
+ }
+}
+
+
+
+/**
+ * This is the software fallback for Driver.GetCompressedTexImage().
+ * All error checking will have been done before this routine is called.
+ */
+void
+_mesa_get_compressed_teximage(GLcontext *ctx, GLenum target, GLint level,
+ GLvoid *img,
+ const struct gl_texture_object *texObj,
+ const struct gl_texture_image *texImage)
+{
+ if (ctx->Pack.BufferObj->Name) {
+ /* pack texture image into a PBO */
+ GLubyte *buf;
+ if ((const GLubyte *) img + texImage->CompressedSize >
+ (const GLubyte *) ctx->Pack.BufferObj->Size) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glGetCompressedTexImage(invalid PBO access)");
+ return;
+ }
+ buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT,
+ GL_WRITE_ONLY_ARB,
+ ctx->Pack.BufferObj);
+ if (!buf) {
+ /* buffer is already mapped - that's an error */
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glGetCompressedTexImage(PBO is mapped)");
+ return;
+ }
+ img = ADD_POINTERS(buf, img);
+ }
+ else if (!img) {
+ /* not an error */
+ return;
+ }
+
+ /* just memcpy, no pixelstore or pixel transfer */
+ MEMCPY(img, texImage->Data, texImage->CompressedSize);
+
+ if (ctx->Pack.BufferObj->Name) {
+ ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT,
+ ctx->Pack.BufferObj);
+ }
}
projects / mesa.git / blobdiff