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-rw-r--r--mesalib/src/mesa/main/texstore.c3925
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diff --git a/mesalib/src/mesa/main/texstore.c b/mesalib/src/mesa/main/texstore.c
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+/*
+ * Mesa 3-D graphics library
+ * Version: 7.5
+ *
+ * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
+ * Copyright (c) 2008-2009 VMware, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * Authors:
+ * 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"
+#if FEATURE_convolve
+#include "convolve.h"
+#endif
+#include "image.h"
+#include "macros.h"
+#include "mipmap.h"
+#include "imports.h"
+#include "texcompress.h"
+#include "texformat.h"
+#include "teximage.h"
+#include "texstore.h"
+#include "enums.h"
+
+
+enum {
+ ZERO = 4,
+ ONE = 5
+};
+
+
+/**
+ * Return GL_TRUE if the given image format is one that be converted
+ * to another format by swizzling.
+ */
+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:
+ case GL_RED:
+ case GL_GREEN:
+ case GL_BLUE:
+ case GL_BGR:
+ case GL_BGRA:
+ case GL_ABGR_EXT:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
+
+enum {
+ IDX_LUMINANCE = 0,
+ IDX_ALPHA,
+ IDX_INTENSITY,
+ IDX_LUMINANCE_ALPHA,
+ IDX_RGB,
+ IDX_RGBA,
+ IDX_RED,
+ IDX_GREEN,
+ IDX_BLUE,
+ IDX_BGR,
+ IDX_BGRA,
+ IDX_ABGR,
+ MAX_IDX
+};
+
+#define MAP1(x) MAP4(x, ZERO, ZERO, ZERO)
+#define MAP2(x,y) MAP4(x, y, ZERO, ZERO)
+#define MAP3(x,y,z) MAP4(x, y, z, ZERO)
+#define MAP4(x,y,z,w) { x, y, z, w, ZERO, ONE }
+
+
+static const struct {
+ GLubyte format_idx;
+ GLubyte to_rgba[6];
+ GLubyte from_rgba[6];
+} mappings[MAX_IDX] =
+{
+ {
+ IDX_LUMINANCE,
+ MAP4(0,0,0,ONE),
+ MAP1(0)
+ },
+
+ {
+ IDX_ALPHA,
+ MAP4(ZERO, ZERO, ZERO, 0),
+ MAP1(3)
+ },
+
+ {
+ IDX_INTENSITY,
+ MAP4(0, 0, 0, 0),
+ MAP1(0),
+ },
+
+ {
+ IDX_LUMINANCE_ALPHA,
+ MAP4(0,0,0,1),
+ MAP2(0,3)
+ },
+
+ {
+ IDX_RGB,
+ MAP4(0,1,2,ONE),
+ MAP3(0,1,2)
+ },
+
+ {
+ IDX_RGBA,
+ MAP4(0,1,2,3),
+ MAP4(0,1,2,3),
+ },
+
+
+ {
+ IDX_RED,
+ MAP4(0, ZERO, ZERO, ONE),
+ MAP1(0),
+ },
+
+ {
+ IDX_GREEN,
+ MAP4(ZERO, 0, ZERO, ONE),
+ MAP1(1),
+ },
+
+ {
+ IDX_BLUE,
+ MAP4(ZERO, ZERO, 0, ONE),
+ MAP1(2),
+ },
+
+ {
+ IDX_BGR,
+ MAP4(2,1,0,ONE),
+ MAP3(2,1,0)
+ },
+
+ {
+ IDX_BGRA,
+ MAP4(2,1,0,3),
+ MAP4(2,1,0,3)
+ },
+
+ {
+ IDX_ABGR,
+ MAP4(3,2,1,0),
+ MAP4(3,2,1,0)
+ },
+};
+
+
+
+/**
+ * Convert a GL image format enum to an IDX_* value (see above).
+ */
+static int
+get_map_idx(GLenum value)
+{
+ switch (value) {
+ case GL_LUMINANCE: return IDX_LUMINANCE;
+ case GL_ALPHA: return IDX_ALPHA;
+ case GL_INTENSITY: return IDX_INTENSITY;
+ case GL_LUMINANCE_ALPHA: return IDX_LUMINANCE_ALPHA;
+ case GL_RGB: return IDX_RGB;
+ case GL_RGBA: return IDX_RGBA;
+ case GL_RED: return IDX_RED;
+ case GL_GREEN: return IDX_GREEN;
+ case GL_BLUE: return IDX_BLUE;
+ case GL_BGR: return IDX_BGR;
+ case GL_BGRA: return IDX_BGRA;
+ case GL_ABGR_EXT: return IDX_ABGR;
+ default:
+ _mesa_problem(NULL, "Unexpected inFormat");
+ return 0;
+ }
+}
+
+
+/**
+ * When promoting texture formats (see below) we need to compute the
+ * mapping of dest components back to source components.
+ * This function does that.
+ * \param inFormat the incoming format of the texture
+ * \param outFormat the final texture format
+ * \return map[6] a full 6-component map
+ */
+static void
+compute_component_mapping(GLenum inFormat, GLenum outFormat,
+ GLubyte *map)
+{
+ const int inFmt = get_map_idx(inFormat);
+ const int outFmt = get_map_idx(outFormat);
+ const GLubyte *in2rgba = mappings[inFmt].to_rgba;
+ const GLubyte *rgba2out = mappings[outFmt].from_rgba;
+ int i;
+
+ for (i = 0; i < 4; i++)
+ map[i] = in2rgba[rgba2out[i]];
+
+ map[ZERO] = ZERO;
+ map[ONE] = ONE;
+
+/*
+ _mesa_printf("from %x/%s to %x/%s map %d %d %d %d %d %d\n",
+ inFormat, _mesa_lookup_enum_by_nr(inFormat),
+ outFormat, _mesa_lookup_enum_by_nr(outFormat),
+ map[0],
+ map[1],
+ map[2],
+ map[3],
+ map[4],
+ map[5]);
+*/
+}
+
+
+#if !FEATURE_convolve
+static void
+_mesa_adjust_image_for_convolution(GLcontext *ctx, GLuint dims,
+ GLsizei *srcWidth, GLsizei *srcHeight)
+{
+ /* no-op */
+}
+#endif
+
+
+/**
+ * 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;
+ }
+
+ /* size after optional convolution */
+ convWidth = srcWidth;
+ convHeight = srcHeight;
+
+#if FEATURE_convolve
+ /* do convolution */
+ {
+ GLfloat *src = tempImage + img * (srcWidth * srcHeight * 4);
+ 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);
+ }
+ }
+ }
+#endif
+ /* 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,
+ (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 FEATURE_convolve
+ 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;
+ }
+#endif
+
+ /* 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;
+}
+
+
+/**
+ * Copy GLubyte pixels from <src> to <dst> with swizzling.
+ * \param dst destination pixels
+ * \param dstComponents number of color components in destination pixels
+ * \param src source pixels
+ * \param srcComponents number of color components in source pixels
+ * \param map the swizzle mapping. map[X] says where to find the X component
+ * in the source image's pixels. For example, if the source image
+ * is GL_BGRA and X = red, map[0] yields 2.
+ * \param count number of pixels to copy/swizzle.
+ */
+static void
+swizzle_copy(GLubyte *dst, GLuint dstComponents, const GLubyte *src,
+ GLuint srcComponents, const GLubyte *map, GLuint count)
+{
+#define SWZ_CPY(dst, src, count, dstComps, srcComps) \
+ do { \
+ GLuint i; \
+ for (i = 0; i < count; i++) { \
+ GLuint j; \
+ if (srcComps == 4) { \
+ COPY_4UBV(tmp, src); \
+ } \
+ else { \
+ for (j = 0; j < srcComps; j++) { \
+ tmp[j] = src[j]; \
+ } \
+ } \
+ src += srcComps; \
+ for (j = 0; j < dstComps; j++) { \
+ dst[j] = tmp[map[j]]; \
+ } \
+ dst += dstComps; \
+ } \
+ } while (0)
+
+ GLubyte tmp[6];
+
+ tmp[ZERO] = 0x0;
+ tmp[ONE] = 0xff;
+
+ ASSERT(srcComponents <= 4);
+ ASSERT(dstComponents <= 4);
+
+ switch (dstComponents) {
+ case 4:
+ switch (srcComponents) {
+ case 4:
+ SWZ_CPY(dst, src, count, 4, 4);
+ break;
+ case 3:
+ SWZ_CPY(dst, src, count, 4, 3);
+ break;
+ case 2:
+ SWZ_CPY(dst, src, count, 4, 2);
+ break;
+ case 1:
+ SWZ_CPY(dst, src, count, 4, 1);
+ break;
+ default:
+ ;
+ }
+ break;
+ case 3:
+ switch (srcComponents) {
+ case 4:
+ SWZ_CPY(dst, src, count, 3, 4);
+ break;
+ case 3:
+ SWZ_CPY(dst, src, count, 3, 3);
+ break;
+ case 2:
+ SWZ_CPY(dst, src, count, 3, 2);
+ break;
+ case 1:
+ SWZ_CPY(dst, src, count, 3, 1);
+ break;
+ default:
+ ;
+ }
+ break;
+ case 2:
+ switch (srcComponents) {
+ case 4:
+ SWZ_CPY(dst, src, count, 2, 4);
+ break;
+ case 3:
+ SWZ_CPY(dst, src, count, 2, 3);
+ break;
+ case 2:
+ SWZ_CPY(dst, src, count, 2, 2);
+ break;
+ case 1:
+ SWZ_CPY(dst, src, count, 2, 1);
+ break;
+ default:
+ ;
+ }
+ break;
+ case 1:
+ switch (srcComponents) {
+ case 4:
+ SWZ_CPY(dst, src, count, 1, 4);
+ break;
+ case 3:
+ SWZ_CPY(dst, src, count, 1, 3);
+ break;
+ case 2:
+ SWZ_CPY(dst, src, count, 1, 2);
+ break;
+ case 1:
+ SWZ_CPY(dst, src, count, 1, 1);
+ break;
+ default:
+ ;
+ }
+ break;
+ default:
+ ;
+ }
+#undef SWZ_CPY
+}
+
+
+
+static const GLubyte map_identity[6] = { 0, 1, 2, 3, ZERO, ONE };
+static const GLubyte map_3210[6] = { 3, 2, 1, 0, ZERO, ONE };
+
+/* Deal with the _REV input types:
+ */
+static const GLubyte *
+type_mapping( GLenum srcType )
+{
+ switch (srcType) {
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE:
+ return map_identity;
+ case GL_UNSIGNED_INT_8_8_8_8:
+ return _mesa_little_endian() ? map_3210 : map_identity;
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
+ return _mesa_little_endian() ? map_identity : map_3210;
+ default:
+ return NULL;
+ }
+}
+
+/* Mapping required if input type is
+ */
+static const GLubyte *
+byteswap_mapping( GLboolean swapBytes,
+ GLenum srcType )
+{
+ if (!swapBytes)
+ return map_identity;
+
+ switch (srcType) {
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE:
+ return map_identity;
+ case GL_UNSIGNED_INT_8_8_8_8:
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
+ return map_3210;
+ default:
+ return NULL;
+ }
+}
+
+
+
+/**
+ * Transfer a GLubyte texture image with component swizzling.
+ */
+static void
+_mesa_swizzle_ubyte_image(GLcontext *ctx,
+ GLuint dimensions,
+ GLenum srcFormat,
+ GLenum srcType,
+
+ GLenum baseInternalFormat,
+
+ const GLubyte *rgba2dst,
+ GLuint dstComponents,
+
+ GLvoid *dstAddr,
+ GLint dstXoffset, GLint dstYoffset, GLint dstZoffset,
+ GLint dstRowStride,
+ const GLuint *dstImageOffsets,
+
+ GLint srcWidth, GLint srcHeight, GLint srcDepth,
+ const GLvoid *srcAddr,
+ const struct gl_pixelstore_attrib *srcPacking )
+{
+ GLint srcComponents = _mesa_components_in_format(srcFormat);
+ const GLubyte *srctype2ubyte, *swap;
+ GLubyte map[4], src2base[6], base2rgba[6];
+ 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);
+
+ (void) ctx;
+
+ /* Translate from src->baseInternal->GL_RGBA->dst. This will
+ * correctly deal with RGBA->RGB->RGBA conversions where the final
+ * A value must be 0xff regardless of the incoming alpha values.
+ */
+ compute_component_mapping(srcFormat, baseInternalFormat, src2base);
+ compute_component_mapping(baseInternalFormat, GL_RGBA, base2rgba);
+ swap = byteswap_mapping(srcPacking->SwapBytes, srcType);
+ srctype2ubyte = type_mapping(srcType);
+
+
+ for (i = 0; i < 4; i++)
+ map[i] = srctype2ubyte[swap[src2base[base2rgba[rgba2dst[i]]]]];
+
+/* _mesa_printf("map %d %d %d %d\n", map[0], map[1], map[2], map[3]); */
+
+ if (srcComponents == dstComponents &&
+ srcRowStride == dstRowStride &&
+ srcRowStride == srcWidth * srcComponents &&
+ dimensions < 3) {
+ /* 1 and 2D images only */
+ GLubyte *dstImage = (GLubyte *) dstAddr
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstComponents;
+ swizzle_copy(dstImage, dstComponents, srcImage, srcComponents, map,
+ srcWidth * srcHeight);
+ }
+ else {
+ GLint img, row;
+ for (img = 0; img < srcDepth; img++) {
+ const GLubyte *srcRow = srcImage;
+ GLubyte *dstRow = (GLubyte *) dstAddr
+ + dstImageOffsets[dstZoffset + img] * dstComponents
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstComponents;
+ for (row = 0; row < srcHeight; row++) {
+ swizzle_copy(dstRow, dstComponents, srcRow, srcComponents, map, srcWidth);
+ dstRow += dstRowStride;
+ srcRow += srcRowStride;
+ }
+ srcImage += srcImageStride;
+ }
+ }
+}
+
+
+/**
+ * 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(GLcontext *ctx,
+ GLuint dimensions,
+ const struct gl_texture_format *dstFormat,
+ GLvoid *dstAddr,
+ GLint dstXoffset, GLint dstYoffset, GLint dstZoffset,
+ GLint dstRowStride,
+ const GLuint *dstImageOffsets,
+ 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;
+
+#if 0
+ /* XXX update/re-enable for dstImageOffsets array */
+ 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 */
+ ctx->Driver.TextureMemCpy(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++) {
+ ctx->Driver.TextureMemCpy(dstRow, srcRow, bytesPerRow);
+ dstRow += dstRowStride;
+ srcRow += srcRowStride;
+ }
+ srcImage += srcImageStride;
+ dstImage += dstImageStride;
+ }
+ }
+#endif
+
+ GLint img, row;
+ for (img = 0; img < srcDepth; img++) {
+ const GLubyte *srcRow = srcImage;
+ GLubyte *dstRow = (GLubyte *) dstAddr
+ + dstImageOffsets[dstZoffset + img] * dstFormat->TexelBytes
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ for (row = 0; row < srcHeight; row++) {
+ ctx->Driver.TextureMemCpy(dstRow, srcRow, bytesPerRow);
+ dstRow += dstRowStride;
+ srcRow += srcRowStride;
+ }
+ srcImage += srcImageStride;
+ }
+}
+
+
+
+/**
+ * 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
+ *
+ */
+GLboolean
+_mesa_texstore_rgba(TEXSTORE_PARAMS)
+{
+ 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(ctx, dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride,
+ dstImageOffsets,
+ 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 */
+ GLint img, row, col;
+ for (img = 0; img < srcDepth; img++) {
+ GLchan *dstImage = (GLchan *)
+ ((GLubyte *) dstAddr
+ + dstImageOffsets[dstZoffset + img] * dstFormat->TexelBytes
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes);
+
+ 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 / sizeof(GLchan);
+ srcRow = (GLchan *) ((GLubyte *) srcRow + srcRowStride);
+ }
+ }
+ }
+ else if (!ctx->_ImageTransferState &&
+ CHAN_TYPE == GL_UNSIGNED_BYTE &&
+ (srcType == GL_UNSIGNED_BYTE ||
+ srcType == GL_UNSIGNED_INT_8_8_8_8 ||
+ srcType == GL_UNSIGNED_INT_8_8_8_8_REV) &&
+ can_swizzle(baseInternalFormat) &&
+ can_swizzle(srcFormat)) {
+
+ const GLubyte *dstmap;
+ GLuint components;
+
+ /* dstmap - how to swizzle from RGBA to dst format:
+ */
+ if (dstFormat == &_mesa_texformat_rgba) {
+ dstmap = mappings[IDX_RGBA].from_rgba;
+ components = 4;
+ }
+ else if (dstFormat == &_mesa_texformat_rgb) {
+ dstmap = mappings[IDX_RGB].from_rgba;
+ components = 3;
+ }
+ else if (dstFormat == &_mesa_texformat_alpha) {
+ dstmap = mappings[IDX_ALPHA].from_rgba;
+ components = 1;
+ }
+ else if (dstFormat == &_mesa_texformat_luminance) {
+ dstmap = mappings[IDX_LUMINANCE].from_rgba;
+ components = 1;
+ }
+ else if (dstFormat == &_mesa_texformat_luminance_alpha) {
+ dstmap = mappings[IDX_LUMINANCE_ALPHA].from_rgba;
+ components = 2;
+ }
+ else if (dstFormat == &_mesa_texformat_intensity) {
+ dstmap = mappings[IDX_INTENSITY].from_rgba;
+ components = 1;
+ }
+ else {
+ _mesa_problem(ctx, "Unexpected dstFormat in _mesa_texstore_rgba");
+ return GL_FALSE;
+ }
+
+ _mesa_swizzle_ubyte_image(ctx, dims,
+ srcFormat,
+ srcType,
+ baseInternalFormat,
+ dstmap, components,
+ dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageOffsets,
+ 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;
+ GLint bytesPerRow;
+ 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 = (GLubyte *) dstAddr
+ + dstImageOffsets[dstZoffset + img] * dstFormat->TexelBytes
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ for (row = 0; row < srcHeight; row++) {
+ _mesa_memcpy(dstRow, src, bytesPerRow);
+ dstRow += dstRowStride;
+ src += srcWidth * components;
+ }
+ }
+
+ _mesa_free((void *) tempImage);
+ }
+ return GL_TRUE;
+}
+
+
+/**
+ * Store a 32-bit integer depth component texture image.
+ */
+GLboolean
+_mesa_texstore_z32(TEXSTORE_PARAMS)
+{
+ const GLuint depthScale = 0xffffffff;
+ (void) dims;
+ ASSERT(dstFormat == &_mesa_texformat_z32);
+ ASSERT(dstFormat->TexelBytes == sizeof(GLuint));
+
+ if (ctx->Pixel.DepthScale == 1.0f &&
+ ctx->Pixel.DepthBias == 0.0f &&
+ !srcPacking->SwapBytes &&
+ baseInternalFormat == GL_DEPTH_COMPONENT &&
+ srcFormat == GL_DEPTH_COMPONENT &&
+ srcType == GL_UNSIGNED_INT) {
+ /* simple memcpy path */
+ memcpy_texture(ctx, dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride,
+ dstImageOffsets,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+ else {
+ /* general path */
+ GLint img, row;
+ for (img = 0; img < srcDepth; img++) {
+ GLubyte *dstRow = (GLubyte *) dstAddr
+ + dstImageOffsets[dstZoffset + img] * dstFormat->TexelBytes
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ 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,
+ GL_UNSIGNED_INT, (GLuint *) dstRow,
+ depthScale, srcType, src, srcPacking);
+ dstRow += dstRowStride;
+ }
+ }
+ }
+ return GL_TRUE;
+}
+
+#define STRIDE_3D 0
+
+/**
+ * Store a 16-bit integer depth component texture image.
+ */
+GLboolean
+_mesa_texstore_z16(TEXSTORE_PARAMS)
+{
+ const GLuint depthScale = 0xffff;
+ (void) dims;
+ ASSERT(dstFormat == &_mesa_texformat_z16);
+ ASSERT(dstFormat->TexelBytes == sizeof(GLushort));
+
+ if (ctx->Pixel.DepthScale == 1.0f &&
+ ctx->Pixel.DepthBias == 0.0f &&
+ !srcPacking->SwapBytes &&
+ baseInternalFormat == GL_DEPTH_COMPONENT &&
+ srcFormat == GL_DEPTH_COMPONENT &&
+ srcType == GL_UNSIGNED_SHORT) {
+ /* simple memcpy path */
+ memcpy_texture(ctx, dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride,
+ dstImageOffsets,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+ else {
+ /* general path */
+ GLint img, row;
+ for (img = 0; img < srcDepth; img++) {
+ GLubyte *dstRow = (GLubyte *) dstAddr
+ + dstImageOffsets[dstZoffset + img] * dstFormat->TexelBytes
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ for (row = 0; row < srcHeight; row++) {
+ 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,
+ GL_UNSIGNED_SHORT, dst16, depthScale,
+ srcType, src, srcPacking);
+ dstRow += dstRowStride;
+ }
+ }
+ }
+ return GL_TRUE;
+}
+
+
+/**
+ * Store an rgb565 or rgb565_rev texture image.
+ */
+GLboolean
+_mesa_texstore_rgb565(TEXSTORE_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(ctx, dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride,
+ dstImageOffsets,
+ 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
+ + 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;
+ 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 = (GLubyte *) dstAddr
+ + dstImageOffsets[dstZoffset + img] * dstFormat->TexelBytes
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ 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;
+ }
+ }
+ _mesa_free((void *) tempImage);
+ }
+ return GL_TRUE;
+}
+
+
+/**
+ * Store a texture in MESA_FORMAT_RGBA8888 or MESA_FORMAT_RGBA8888_REV.
+ */
+GLboolean
+_mesa_texstore_rgba8888(TEXSTORE_PARAMS)
+{
+ const GLboolean littleEndian = _mesa_little_endian();
+
+ 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_RGBA && srcType == GL_UNSIGNED_BYTE && !littleEndian) ||
+ (srcFormat == GL_ABGR_EXT && srcType == GL_UNSIGNED_INT_8_8_8_8_REV) ||
+ (srcFormat == GL_ABGR_EXT && srcType == GL_UNSIGNED_BYTE && littleEndian))) {
+ /* simple memcpy path */
+ memcpy_texture(ctx, dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride,
+ dstImageOffsets,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+ else if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ dstFormat == &_mesa_texformat_rgba8888_rev &&
+ baseInternalFormat == GL_RGBA &&
+ ((srcFormat == GL_RGBA && srcType == GL_UNSIGNED_INT_8_8_8_8_REV) ||
+ (srcFormat == GL_RGBA && srcType == GL_UNSIGNED_BYTE && littleEndian) ||
+ (srcFormat == GL_ABGR_EXT && srcType == GL_UNSIGNED_INT_8_8_8_8) ||
+ (srcFormat == GL_ABGR_EXT && srcType == GL_UNSIGNED_BYTE && !littleEndian))) {
+ /* simple memcpy path */
+ memcpy_texture(ctx, dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride,
+ dstImageOffsets,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+ else if (!ctx->_ImageTransferState &&
+ (srcType == GL_UNSIGNED_BYTE ||
+ srcType == GL_UNSIGNED_INT_8_8_8_8 ||
+ srcType == GL_UNSIGNED_INT_8_8_8_8_REV) &&
+ can_swizzle(baseInternalFormat) &&
+ can_swizzle(srcFormat)) {
+
+ GLubyte dstmap[4];
+
+ /* dstmap - how to swizzle from RGBA to dst format:
+ */
+ if ((littleEndian && dstFormat == &_mesa_texformat_rgba8888) ||
+ (!littleEndian && dstFormat == &_mesa_texformat_rgba8888_rev)) {
+ dstmap[3] = 0;
+ dstmap[2] = 1;
+ dstmap[1] = 2;
+ dstmap[0] = 3;
+ }
+ else {
+ dstmap[3] = 3;
+ dstmap[2] = 2;
+ dstmap[1] = 1;
+ dstmap[0] = 0;
+ }
+
+ _mesa_swizzle_ubyte_image(ctx, dims,
+ srcFormat,
+ srcType,
+ baseInternalFormat,
+ dstmap, 4,
+ dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageOffsets,
+ 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;
+ 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 = (GLubyte *) dstAddr
+ + dstImageOffsets[dstZoffset + img] * dstFormat->TexelBytes
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ 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;
+ }
+ }
+ _mesa_free((void *) tempImage);
+ }
+ return GL_TRUE;
+}
+
+
+GLboolean
+_mesa_texstore_argb8888(TEXSTORE_PARAMS)
+{
+ const GLboolean littleEndian = _mesa_little_endian();
+
+ 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(ctx, dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride,
+ dstImageOffsets,
+ 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(ctx, dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride,
+ dstImageOffsets,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+ else if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ dstFormat == &_mesa_texformat_argb8888 &&
+ srcFormat == GL_RGB &&
+ (baseInternalFormat == GL_RGBA ||
+ baseInternalFormat == GL_RGB) &&
+ srcType == GL_UNSIGNED_BYTE) {
+ int img, row, col;
+ 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 = (GLubyte *) dstAddr
+ + dstImageOffsets[dstZoffset + img] * dstFormat->TexelBytes
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ for (row = 0; row < srcHeight; row++) {
+ GLuint *d4 = (GLuint *) dstRow;
+ for (col = 0; col < srcWidth; col++) {
+ d4[col] = PACK_COLOR_8888(0xff,
+ srcRow[col * 3 + RCOMP],
+ srcRow[col * 3 + GCOMP],
+ srcRow[col * 3 + BCOMP]);
+ }
+ dstRow += dstRowStride;
+ srcRow += srcRowStride;
+ }
+ }
+ }
+ else if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ dstFormat == &_mesa_texformat_argb8888 &&
+ srcFormat == GL_RGBA &&
+ baseInternalFormat == GL_RGBA &&
+ srcType == GL_UNSIGNED_BYTE) {
+ /* same as above case, but src data has alpha too */
+ GLint img, row, col;
+ /* For some reason, streaming copies to write-combined regions
+ * are extremely sensitive to the characteristics of how the
+ * source data is retrieved. By reordering the source reads to
+ * be in-order, the speed of this operation increases by half.
+ * Strangely the same isn't required for the RGB path, above.
+ */
+ 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 = (GLubyte *) dstAddr
+ + dstImageOffsets[dstZoffset + img] * dstFormat->TexelBytes
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ for (row = 0; row < srcHeight; row++) {
+ GLuint *d4 = (GLuint *) dstRow;
+ for (col = 0; col < srcWidth; col++) {
+ d4[col] = PACK_COLOR_8888(srcRow[col * 4 + ACOMP],
+ srcRow[col * 4 + RCOMP],
+ srcRow[col * 4 + GCOMP],
+ srcRow[col * 4 + BCOMP]);
+ }
+ dstRow += dstRowStride;
+ srcRow += srcRowStride;
+ }
+ }
+ }
+ else if (!ctx->_ImageTransferState &&
+ (srcType == GL_UNSIGNED_BYTE ||
+ srcType == GL_UNSIGNED_INT_8_8_8_8 ||
+ srcType == GL_UNSIGNED_INT_8_8_8_8_REV) &&
+ can_swizzle(baseInternalFormat) &&
+ can_swizzle(srcFormat)) {
+
+ GLubyte dstmap[4];
+
+ /* dstmap - how to swizzle from RGBA to dst format:
+ */
+ if ((littleEndian && dstFormat == &_mesa_texformat_argb8888) ||
+ (!littleEndian && dstFormat == &_mesa_texformat_argb8888_rev)) {
+ dstmap[3] = 3; /* alpha */
+ dstmap[2] = 0; /* red */
+ dstmap[1] = 1; /* green */
+ dstmap[0] = 2; /* blue */
+ }
+ else {
+ assert((littleEndian && dstFormat == &_mesa_texformat_argb8888_rev) ||
+ (!littleEndian && dstFormat == &_mesa_texformat_argb8888));
+ dstmap[3] = 2;
+ dstmap[2] = 1;
+ dstmap[1] = 0;
+ dstmap[0] = 3;
+ }
+
+ _mesa_swizzle_ubyte_image(ctx, dims,
+ srcFormat,
+ srcType,
+
+ baseInternalFormat,
+ dstmap, 4,
+ dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride,
+ dstImageOffsets,
+ 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;
+ 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 = (GLubyte *) dstAddr
+ + dstImageOffsets[dstZoffset + img] * dstFormat->TexelBytes
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ 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;
+ }
+ }
+ _mesa_free((void *) tempImage);
+ }
+ return GL_TRUE;
+}
+
+
+GLboolean
+_mesa_texstore_rgb888(TEXSTORE_PARAMS)
+{
+ const GLboolean littleEndian = _mesa_little_endian();
+
+ 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(ctx, dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride,
+ dstImageOffsets,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+ else if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ srcFormat == GL_RGBA &&
+ srcType == GL_UNSIGNED_BYTE) {
+ /* extract RGB from RGBA */
+ GLint img, row, col;
+ 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 = (GLubyte *) dstAddr
+ + dstImageOffsets[dstZoffset + img] * dstFormat->TexelBytes
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ 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;
+ }
+ }
+ }
+ else if (!ctx->_ImageTransferState &&
+ srcType == GL_UNSIGNED_BYTE &&
+ can_swizzle(baseInternalFormat) &&
+ can_swizzle(srcFormat)) {
+
+ GLubyte dstmap[4];
+
+ /* dstmap - how to swizzle from RGBA to dst format:
+ */
+ dstmap[0] = 2;
+ dstmap[1] = 1;
+ dstmap[2] = 0;
+ dstmap[3] = ONE; /* ? */
+
+ _mesa_swizzle_ubyte_image(ctx, dims,
+ srcFormat,
+ srcType,
+ baseInternalFormat,
+ dstmap, 3,
+ dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageOffsets,
+ 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 = (const GLchan *) tempImage;
+ 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 = (GLubyte *) dstAddr
+ + dstImageOffsets[dstZoffset + img] * dstFormat->TexelBytes
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ 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;
+ }
+ }
+ _mesa_free((void *) tempImage);
+ }
+ return GL_TRUE;
+}
+
+
+GLboolean
+_mesa_texstore_bgr888(TEXSTORE_PARAMS)
+{
+ const GLboolean littleEndian = _mesa_little_endian();
+
+ 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(ctx, dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride,
+ dstImageOffsets,
+ 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;
+ 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 = (GLubyte *) dstAddr
+ + dstImageOffsets[dstZoffset + img] * dstFormat->TexelBytes
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ 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;
+ }
+ }
+ }
+ else if (!ctx->_ImageTransferState &&
+ srcType == GL_UNSIGNED_BYTE &&
+ can_swizzle(baseInternalFormat) &&
+ can_swizzle(srcFormat)) {
+
+ GLubyte dstmap[4];
+
+ /* dstmap - how to swizzle from RGBA to dst format:
+ */
+ dstmap[0] = 0;
+ dstmap[1] = 1;
+ dstmap[2] = 2;
+ dstmap[3] = ONE; /* ? */
+
+ _mesa_swizzle_ubyte_image(ctx, dims,
+ srcFormat,
+ srcType,
+ baseInternalFormat,
+ dstmap, 3,
+ dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageOffsets,
+ 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 = (const GLchan *) tempImage;
+ 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 = (GLubyte *) dstAddr
+ + dstImageOffsets[dstZoffset + img] * dstFormat->TexelBytes
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ 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;
+ }
+ }
+ _mesa_free((void *) tempImage);
+ }
+ return GL_TRUE;
+}
+
+GLboolean
+_mesa_texstore_rgba4444(TEXSTORE_PARAMS)
+{
+ ASSERT(dstFormat == &_mesa_texformat_rgba4444);
+ ASSERT(dstFormat->TexelBytes == 2);
+
+ if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ dstFormat == &_mesa_texformat_rgba4444 &&
+ baseInternalFormat == GL_RGBA &&
+ srcFormat == GL_RGBA &&
+ srcType == GL_UNSIGNED_SHORT_4_4_4_4){
+ /* simple memcpy path */
+ memcpy_texture(ctx, dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride,
+ dstImageOffsets,
+ 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;
+ 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 = (GLubyte *) dstAddr
+ + dstImageOffsets[dstZoffset + img] * dstFormat->TexelBytes
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ for (row = 0; row < srcHeight; row++) {
+ GLushort *dstUS = (GLushort *) dstRow;
+ for (col = 0; col < srcWidth; col++) {
+ dstUS[col] = PACK_COLOR_4444( CHAN_TO_UBYTE(src[RCOMP]),
+ CHAN_TO_UBYTE(src[GCOMP]),
+ CHAN_TO_UBYTE(src[BCOMP]),
+ CHAN_TO_UBYTE(src[ACOMP]) );
+ src += 4;
+ }
+ dstRow += dstRowStride;
+ }
+ }
+ _mesa_free((void *) tempImage);
+ }
+ return GL_TRUE;
+}
+
+GLboolean
+_mesa_texstore_argb4444(TEXSTORE_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(ctx, dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride,
+ dstImageOffsets,
+ 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;
+ 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 = (GLubyte *) dstAddr
+ + dstImageOffsets[dstZoffset + img] * dstFormat->TexelBytes
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ 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;
+ }
+ }
+ _mesa_free((void *) tempImage);
+ }
+ return GL_TRUE;
+}
+
+GLboolean
+_mesa_texstore_rgba5551(TEXSTORE_PARAMS)
+{
+ ASSERT(dstFormat == &_mesa_texformat_rgba5551);
+ ASSERT(dstFormat->TexelBytes == 2);
+
+ if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ dstFormat == &_mesa_texformat_rgba5551 &&
+ baseInternalFormat == GL_RGBA &&
+ srcFormat == GL_RGBA &&
+ srcType == GL_UNSIGNED_SHORT_5_5_5_1) {
+ /* simple memcpy path */
+ memcpy_texture(ctx, dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride,
+ dstImageOffsets,
+ 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;
+ 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 = (GLubyte *) dstAddr
+ + dstImageOffsets[dstZoffset + img] * dstFormat->TexelBytes
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ for (row = 0; row < srcHeight; row++) {
+ GLushort *dstUS = (GLushort *) dstRow;
+ for (col = 0; col < srcWidth; col++) {
+ dstUS[col] = PACK_COLOR_5551( CHAN_TO_UBYTE(src[RCOMP]),
+ CHAN_TO_UBYTE(src[GCOMP]),
+ CHAN_TO_UBYTE(src[BCOMP]),
+ CHAN_TO_UBYTE(src[ACOMP]) );
+ src += 4;
+ }
+ dstRow += dstRowStride;
+ }
+ }
+ _mesa_free((void *) tempImage);
+ }
+ return GL_TRUE;
+}
+
+GLboolean
+_mesa_texstore_argb1555(TEXSTORE_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(ctx, dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride,
+ dstImageOffsets,
+ 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;
+ 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 = (GLubyte *) dstAddr
+ + dstImageOffsets[dstZoffset + img] * dstFormat->TexelBytes
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ 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;
+ }
+ }
+ _mesa_free((void *) tempImage);
+ }
+ return GL_TRUE;
+}
+
+
+GLboolean
+_mesa_texstore_al88(TEXSTORE_PARAMS)
+{
+ const GLboolean littleEndian = _mesa_little_endian();
+
+ 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(ctx, dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride,
+ dstImageOffsets,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+ else if (!ctx->_ImageTransferState &&
+ littleEndian &&
+ srcType == GL_UNSIGNED_BYTE &&
+ can_swizzle(baseInternalFormat) &&
+ can_swizzle(srcFormat)) {
+
+ GLubyte dstmap[4];
+
+ /* dstmap - how to swizzle from RGBA to dst format:
+ */
+ if ((littleEndian && dstFormat == &_mesa_texformat_al88) ||
+ (!littleEndian && dstFormat == &_mesa_texformat_al88_rev)) {
+ dstmap[0] = 0;
+ dstmap[1] = 3;
+ }
+ else {
+ dstmap[0] = 3;
+ dstmap[1] = 0;
+ }
+ dstmap[2] = ZERO; /* ? */
+ dstmap[3] = ONE; /* ? */
+
+ _mesa_swizzle_ubyte_image(ctx, dims,
+ srcFormat,
+ srcType,
+ baseInternalFormat,
+ dstmap, 2,
+ dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageOffsets,
+ 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;
+ 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 = (GLubyte *) dstAddr
+ + dstImageOffsets[dstZoffset + img] * dstFormat->TexelBytes
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ 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;
+ }
+ }
+ _mesa_free((void *) tempImage);
+ }
+ return GL_TRUE;
+}
+
+
+GLboolean
+_mesa_texstore_rgb332(TEXSTORE_PARAMS)
+{
+ 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(ctx, dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride,
+ dstImageOffsets,
+ 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;
+ 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 = (GLubyte *) dstAddr
+ + dstImageOffsets[dstZoffset + img] * dstFormat->TexelBytes
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ 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;
+ }
+ }
+ _mesa_free((void *) tempImage);
+ }
+ return GL_TRUE;
+}
+
+
+/**
+ * Texstore for _mesa_texformat_a8, _mesa_texformat_l8, _mesa_texformat_i8.
+ */
+GLboolean
+_mesa_texstore_a8(TEXSTORE_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(ctx, dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride,
+ dstImageOffsets,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+ else if (!ctx->_ImageTransferState &&
+ srcType == GL_UNSIGNED_BYTE &&
+ can_swizzle(baseInternalFormat) &&
+ can_swizzle(srcFormat)) {
+
+ GLubyte dstmap[4];
+
+ /* dstmap - how to swizzle from RGBA to dst format:
+ */
+ if (dstFormat == &_mesa_texformat_a8) {
+ dstmap[0] = 3;
+ }
+ else {
+ dstmap[0] = 0;
+ }
+ dstmap[1] = ZERO; /* ? */
+ dstmap[2] = ZERO; /* ? */
+ dstmap[3] = ONE; /* ? */
+
+ _mesa_swizzle_ubyte_image(ctx, dims,
+ srcFormat,
+ srcType,
+ baseInternalFormat,
+ dstmap, 1,
+ dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageOffsets,
+ 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;
+ 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 = (GLubyte *) dstAddr
+ + dstImageOffsets[dstZoffset + img] * dstFormat->TexelBytes
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ for (row = 0; row < srcHeight; row++) {
+ for (col = 0; col < srcWidth; col++) {
+ dstRow[col] = CHAN_TO_UBYTE(src[col]);
+ }
+ dstRow += dstRowStride;
+ src += srcWidth;
+ }
+ }
+ _mesa_free((void *) tempImage);
+ }
+ return GL_TRUE;
+}
+
+
+
+GLboolean
+_mesa_texstore_ci8(TEXSTORE_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(ctx, dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride,
+ dstImageOffsets,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+ else {
+ /* general path */
+ GLint img, row;
+ for (img = 0; img < srcDepth; img++) {
+ GLubyte *dstRow = (GLubyte *) dstAddr
+ + dstImageOffsets[dstZoffset + img] * dstFormat->TexelBytes
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ for (row = 0; row < srcHeight; row++) {
+ const GLvoid *src = _mesa_image_address(dims, srcPacking,
+ srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0);
+ _mesa_unpack_index_span(ctx, srcWidth, GL_UNSIGNED_BYTE, dstRow,
+ srcType, src, srcPacking,
+ ctx->_ImageTransferState);
+ dstRow += dstRowStride;
+ }
+ }
+ }
+ return GL_TRUE;
+}
+
+
+/**
+ * Texstore for _mesa_texformat_ycbcr or _mesa_texformat_ycbcr_rev.
+ */
+GLboolean
+_mesa_texstore_ycbcr(TEXSTORE_PARAMS)
+{
+ const GLboolean littleEndian = _mesa_little_endian();
+ (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(ctx, dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride,
+ dstImageOffsets,
+ 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) {
+ GLint img, row;
+ for (img = 0; img < srcDepth; img++) {
+ GLubyte *dstRow = (GLubyte *) dstAddr
+ + dstImageOffsets[dstZoffset + img] * dstFormat->TexelBytes
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ for (row = 0; row < srcHeight; row++) {
+ _mesa_swap2((GLushort *) dstRow, srcWidth);
+ dstRow += dstRowStride;
+ }
+ }
+ }
+ return GL_TRUE;
+}
+
+GLboolean
+_mesa_texstore_dudv8(TEXSTORE_PARAMS)
+{
+ const GLboolean littleEndian = _mesa_little_endian();
+
+ ASSERT(dstFormat == &_mesa_texformat_dudv8);
+ ASSERT(dstFormat->TexelBytes == 2);
+ ASSERT(ctx->Extensions.ATI_envmap_bumpmap);
+ ASSERT((srcFormat == GL_DU8DV8_ATI) ||
+ (srcFormat == GL_DUDV_ATI));
+ ASSERT(baseInternalFormat == GL_DUDV_ATI);
+
+ if (!srcPacking->SwapBytes && srcType == GL_BYTE &&
+ littleEndian) {
+ /* simple memcpy path */
+ memcpy_texture(ctx, dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride,
+ dstImageOffsets,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+ else if (srcType == GL_BYTE) {
+
+ GLubyte dstmap[4];
+
+ /* dstmap - how to swizzle from RGBA to dst format:
+ */
+ if (littleEndian) {
+ dstmap[0] = 0;
+ dstmap[1] = 3;
+ }
+ else {
+ dstmap[0] = 3;
+ dstmap[1] = 0;
+ }
+ dstmap[2] = ZERO; /* ? */
+ dstmap[3] = ONE; /* ? */
+
+ _mesa_swizzle_ubyte_image(ctx, dims,
+ GL_LUMINANCE_ALPHA, /* hack */
+ GL_UNSIGNED_BYTE, /* hack */
+ GL_LUMINANCE_ALPHA, /* hack */
+ dstmap, 2,
+ dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageOffsets,
+ srcWidth, srcHeight, srcDepth, srcAddr,
+ srcPacking);
+ }
+ else {
+ /* general path - note this is defined for 2d textures only */
+ const GLint components = _mesa_components_in_format(baseInternalFormat);
+ const GLint srcStride = _mesa_image_row_stride(srcPacking,
+ srcWidth, srcFormat, srcType);
+ GLbyte *tempImage, *dst, *src;
+ GLint row;
+
+ tempImage = (GLbyte *) _mesa_malloc(srcWidth * srcHeight * srcDepth
+ * components * sizeof(GLbyte));
+ if (!tempImage)
+ return GL_FALSE;
+
+ src = (GLbyte *) _mesa_image_address(dims, srcPacking, srcAddr,
+ srcWidth, srcHeight,
+ srcFormat, srcType,
+ 0, 0, 0);
+
+ dst = tempImage;
+ for (row = 0; row < srcHeight; row++) {
+ _mesa_unpack_dudv_span_byte(ctx, srcWidth, baseInternalFormat,
+ dst, srcFormat, srcType, src,
+ srcPacking, 0);
+ dst += srcWidth * components;
+ src += srcStride;
+ }
+
+ src = tempImage;
+ dst = (GLbyte *) dstAddr
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ for (row = 0; row < srcHeight; row++) {
+ memcpy(dst, src, srcWidth * dstFormat->TexelBytes);
+ dst += dstRowStride;
+ src += srcWidth * dstFormat->TexelBytes;
+ }
+ _mesa_free((void *) tempImage);
+ }
+ return GL_TRUE;
+}
+
+/**
+ * Store a texture in MESA_FORMAT_SIGNED_RGBA8888 or MESA_FORMAT_SIGNED_RGBA8888_REV
+ */
+GLboolean
+_mesa_texstore_signed_rgba8888(TEXSTORE_PARAMS)
+{
+ const GLboolean littleEndian = _mesa_little_endian();
+
+ ASSERT(dstFormat == &_mesa_texformat_signed_rgba8888 ||
+ dstFormat == &_mesa_texformat_signed_rgba8888_rev);
+ ASSERT(dstFormat->TexelBytes == 4);
+
+ if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ dstFormat == &_mesa_texformat_signed_rgba8888 &&
+ baseInternalFormat == GL_RGBA &&
+ ((srcFormat == GL_RGBA && srcType == GL_BYTE && !littleEndian) ||
+ (srcFormat == GL_ABGR_EXT && srcType == GL_BYTE && littleEndian))) {
+ /* simple memcpy path */
+ memcpy_texture(ctx, dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride,
+ dstImageOffsets,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+ else if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ dstFormat == &_mesa_texformat_signed_rgba8888_rev &&
+ baseInternalFormat == GL_RGBA &&
+ ((srcFormat == GL_RGBA && srcType == GL_BYTE && littleEndian) ||
+ (srcFormat == GL_ABGR_EXT && srcType == GL_BYTE && !littleEndian))) {
+ /* simple memcpy path */
+ memcpy_texture(ctx, dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride,
+ dstImageOffsets,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+ else if (!ctx->_ImageTransferState &&
+ (srcType == GL_BYTE) &&
+ can_swizzle(baseInternalFormat) &&
+ can_swizzle(srcFormat)) {
+
+ GLubyte dstmap[4];
+
+ /* dstmap - how to swizzle from RGBA to dst format:
+ */
+ if ((littleEndian && dstFormat == &_mesa_texformat_signed_rgba8888) ||
+ (!littleEndian && dstFormat == &_mesa_texformat_signed_rgba8888_rev)) {
+ dstmap[3] = 0;
+ dstmap[2] = 1;
+ dstmap[1] = 2;
+ dstmap[0] = 3;
+ }
+ else {
+ dstmap[3] = 3;
+ dstmap[2] = 2;
+ dstmap[1] = 1;
+ dstmap[0] = 0;
+ }
+
+ _mesa_swizzle_ubyte_image(ctx, dims,
+ srcFormat,
+ srcType,
+ baseInternalFormat,
+ dstmap, 4,
+ dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageOffsets,
+ srcWidth, srcHeight, srcDepth, 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 *srcRow = tempImage;
+ 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 = (GLubyte *) dstAddr
+ + dstImageOffsets[dstZoffset + img] * dstFormat->TexelBytes
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ for (row = 0; row < srcHeight; row++) {
+ GLuint *dstUI = (GLuint *) dstRow;
+ if (dstFormat == &_mesa_texformat_signed_rgba8888) {
+ for (col = 0; col < srcWidth; col++) {
+ dstUI[col] = PACK_COLOR_8888( FLOAT_TO_BYTE_TEX(srcRow[RCOMP]),
+ FLOAT_TO_BYTE_TEX(srcRow[GCOMP]),
+ FLOAT_TO_BYTE_TEX(srcRow[BCOMP]),
+ FLOAT_TO_BYTE_TEX(srcRow[ACOMP]) );
+ srcRow += 4;
+ }
+ }
+ else {
+ for (col = 0; col < srcWidth; col++) {
+ dstUI[col] = PACK_COLOR_8888_REV( FLOAT_TO_BYTE_TEX(srcRow[RCOMP]),
+ FLOAT_TO_BYTE_TEX(srcRow[GCOMP]),
+ FLOAT_TO_BYTE_TEX(srcRow[BCOMP]),
+ FLOAT_TO_BYTE_TEX(srcRow[ACOMP]) );
+ srcRow += 4;
+ }
+ }
+ dstRow += dstRowStride;
+ }
+ }
+ _mesa_free((void *) tempImage);
+ }
+ return GL_TRUE;
+}
+
+/**
+ * Store a combined depth/stencil texture image.
+ */
+GLboolean
+_mesa_texstore_z24_s8(TEXSTORE_PARAMS)
+{
+ const GLfloat depthScale = (GLfloat) 0xffffff;
+ const GLint srcRowStride
+ = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType)
+ / sizeof(GLuint);
+ GLint img, row;
+
+ ASSERT(dstFormat == &_mesa_texformat_z24_s8);
+ ASSERT(srcFormat == GL_DEPTH_STENCIL_EXT || srcFormat == GL_DEPTH_COMPONENT);
+ ASSERT(srcFormat != GL_DEPTH_STENCIL_EXT || srcType == GL_UNSIGNED_INT_24_8_EXT);
+
+ /* In case we only upload depth we need to preserve the stencil */
+ if (srcFormat == GL_DEPTH_COMPONENT) {
+ for (img = 0; img < srcDepth; img++) {
+ GLuint *dstRow = (GLuint *) dstAddr
+ + dstImageOffsets[dstZoffset + img]
+ + dstYoffset * dstRowStride / sizeof(GLuint)
+ + dstXoffset;
+ const GLuint *src
+ = (const GLuint *) _mesa_image_address(dims, srcPacking, srcAddr,
+ srcWidth, srcHeight,
+ srcFormat, srcType,
+ img, 0, 0);
+ for (row = 0; row < srcHeight; row++) {
+ GLuint depth[MAX_WIDTH];
+ GLint i;
+ _mesa_unpack_depth_span(ctx, srcWidth,
+ GL_UNSIGNED_INT, /* dst type */
+ depth, /* dst addr */
+ depthScale,
+ srcType, src, srcPacking);
+
+ for (i = 0; i < srcWidth; i++)
+ dstRow[i] = depth[i] << 8 | (dstRow[i] & 0x000000FF);
+
+ src += srcRowStride;
+ dstRow += dstRowStride / sizeof(GLuint);
+ }
+ }
+ }
+ else if (ctx->Pixel.DepthScale == 1.0f &&
+ ctx->Pixel.DepthBias == 0.0f &&
+ !srcPacking->SwapBytes) {
+ /* simple path */
+ memcpy_texture(ctx, dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride,
+ dstImageOffsets,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+ else {
+ /* general path */
+ const GLint srcRowStride
+ = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType)
+ / sizeof(GLuint);
+ GLint img, row;
+
+ for (img = 0; img < srcDepth; img++) {
+ GLuint *dstRow = (GLuint *) dstAddr
+ + dstImageOffsets[dstZoffset + img]
+ + dstYoffset * dstRowStride / sizeof(GLuint)
+ + dstXoffset;
+ const GLuint *src
+ = (const GLuint *) _mesa_image_address(dims, srcPacking, srcAddr,
+ srcWidth, srcHeight,
+ srcFormat, srcType,
+ img, 0, 0);
+ for (row = 0; row < srcHeight; row++) {
+ GLubyte stencil[MAX_WIDTH];
+ GLint i;
+ /* the 24 depth bits will be in the high position: */
+ _mesa_unpack_depth_span(ctx, srcWidth,
+ GL_UNSIGNED_INT_24_8_EXT, /* dst type */
+ dstRow, /* dst addr */
+ (GLuint) depthScale,
+ srcType, src, srcPacking);
+ /* get the 8-bit stencil values */
+ _mesa_unpack_stencil_span(ctx, srcWidth,
+ GL_UNSIGNED_BYTE, /* dst type */
+ stencil, /* dst addr */
+ srcType, src, srcPacking,
+ ctx->_ImageTransferState);
+ /* merge stencil values into depth values */
+ for (i = 0; i < srcWidth; i++)
+ dstRow[i] |= stencil[i];
+
+ src += srcRowStride;
+ dstRow += dstRowStride / sizeof(GLuint);
+ }
+ }
+ }
+ return GL_TRUE;
+}
+
+
+/**
+ * Store a combined depth/stencil texture image.
+ */
+GLboolean
+_mesa_texstore_s8_z24(TEXSTORE_PARAMS)
+{
+ const GLuint depthScale = 0xffffff;
+ const GLint srcRowStride
+ = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType)
+ / sizeof(GLuint);
+ GLint img, row;
+
+ ASSERT(dstFormat == &_mesa_texformat_s8_z24);
+ ASSERT(srcFormat == GL_DEPTH_STENCIL_EXT || srcFormat == GL_DEPTH_COMPONENT);
+ ASSERT(srcFormat != GL_DEPTH_STENCIL_EXT || srcType == GL_UNSIGNED_INT_24_8_EXT);
+
+ /* In case we only upload depth we need to preserve the stencil */
+ if (srcFormat == GL_DEPTH_COMPONENT) {
+ for (img = 0; img < srcDepth; img++) {
+ GLuint *dstRow = (GLuint *) dstAddr
+ + dstImageOffsets[dstZoffset + img]
+ + dstYoffset * dstRowStride / sizeof(GLuint)
+ + dstXoffset;
+ const GLuint *src
+ = (const GLuint *) _mesa_image_address(dims, srcPacking, srcAddr,
+ srcWidth, srcHeight,
+ srcFormat, srcType,
+ img, 0, 0);
+ for (row = 0; row < srcHeight; row++) {
+ GLuint depth[MAX_WIDTH];
+ GLint i;
+ _mesa_unpack_depth_span(ctx, srcWidth,
+ GL_UNSIGNED_INT, /* dst type */
+ depth, /* dst addr */
+ depthScale,
+ srcType, src, srcPacking);
+
+ for (i = 0; i < srcWidth; i++)
+ dstRow[i] = depth[i] | (dstRow[i] & 0xFF000000);
+
+ src += srcRowStride;
+ dstRow += dstRowStride / sizeof(GLuint);
+ }
+ }
+ }
+ else {
+ for (img = 0; img < srcDepth; img++) {
+ GLuint *dstRow = (GLuint *) dstAddr
+ + dstImageOffsets[dstZoffset + img]
+ + dstYoffset * dstRowStride / sizeof(GLuint)
+ + dstXoffset;
+ const GLuint *src
+ = (const GLuint *) _mesa_image_address(dims, srcPacking, srcAddr,
+ srcWidth, srcHeight,
+ srcFormat, srcType,
+ img, 0, 0);
+ for (row = 0; row < srcHeight; row++) {
+ GLubyte stencil[MAX_WIDTH];
+ GLint i;
+ /* the 24 depth bits will be in the low position: */
+ _mesa_unpack_depth_span(ctx, srcWidth,
+ GL_UNSIGNED_INT, /* dst type */
+ dstRow, /* dst addr */
+ depthScale,
+ srcType, src, srcPacking);
+ /* get the 8-bit stencil values */
+ _mesa_unpack_stencil_span(ctx, srcWidth,
+ GL_UNSIGNED_BYTE, /* dst type */
+ stencil, /* dst addr */
+ srcType, src, srcPacking,
+ ctx->_ImageTransferState);
+ /* merge stencil values into depth values */
+ for (i = 0; i < srcWidth; i++)
+ dstRow[i] |= stencil[i] << 24;
+
+ src += srcRowStride;
+ dstRow += dstRowStride / sizeof(GLuint);
+ }
+ }
+ }
+ return GL_TRUE;
+}
+
+/**
+ * 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(TEXSTORE_PARAMS)
+{
+ const GLint components = _mesa_components_in_format(dstFormat->BaseFormat);
+
+ 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(ctx, dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride,
+ dstImageOffsets,
+ 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 *srcRow = tempImage;
+ GLint bytesPerRow;
+ 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 *dstRow = (GLubyte *) dstAddr
+ + dstImageOffsets[dstZoffset + img] * dstFormat->TexelBytes
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ for (row = 0; row < srcHeight; row++) {
+ _mesa_memcpy(dstRow, srcRow, bytesPerRow);
+ dstRow += dstRowStride;
+ srcRow += srcWidth * components;
+ }
+ }
+
+ _mesa_free((void *) tempImage);
+ }
+ return GL_TRUE;
+}
+
+
+/**
+ * As above, but store 16-bit floats.
+ */
+GLboolean
+_mesa_texstore_rgba_float16(TEXSTORE_PARAMS)
+{
+ const GLint components = _mesa_components_in_format(dstFormat->BaseFormat);
+
+ 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(ctx, dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride,
+ dstImageOffsets,
+ 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 img, row;
+ if (!tempImage)
+ return GL_FALSE;
+ _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
+ for (img = 0; img < srcDepth; img++) {
+ GLubyte *dstRow = (GLubyte *) dstAddr
+ + dstImageOffsets[dstZoffset + img] * dstFormat->TexelBytes
+ + dstYoffset * dstRowStride
+ + dstXoffset * dstFormat->TexelBytes;
+ 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]);
+ }
+ dstRow += dstRowStride;
+ src += srcWidth * components;
+ }
+ }
+
+ _mesa_free((void *) tempImage);
+ }
+ return GL_TRUE;
+}
+
+
+#if FEATURE_EXT_texture_sRGB
+GLboolean
+_mesa_texstore_srgb8(TEXSTORE_PARAMS)
+{
+ const struct gl_texture_format *newDstFormat;
+ StoreTexImageFunc store;
+ GLboolean k;
+
+ ASSERT(dstFormat == &_mesa_texformat_srgb8);
+
+ /* reuse normal rgb texstore code */
+ newDstFormat = &_mesa_texformat_rgb888;
+ store = _mesa_texstore_rgb888;
+
+ k = store(ctx, dims, baseInternalFormat,
+ newDstFormat, dstAddr,
+ dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageOffsets,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType,
+ srcAddr, srcPacking);
+ return k;
+}
+
+
+GLboolean
+_mesa_texstore_srgba8(TEXSTORE_PARAMS)
+{
+ const struct gl_texture_format *newDstFormat;
+ GLboolean k;
+
+ ASSERT(dstFormat == &_mesa_texformat_srgba8);
+
+ /* reuse normal rgba texstore code */
+ newDstFormat = &_mesa_texformat_rgba8888;
+
+ k = _mesa_texstore_rgba8888(ctx, dims, baseInternalFormat,
+ newDstFormat, dstAddr,
+ dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageOffsets,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType,
+ srcAddr, srcPacking);
+ return k;
+}
+
+
+GLboolean
+_mesa_texstore_sargb8(TEXSTORE_PARAMS)
+{
+ const struct gl_texture_format *newDstFormat;
+ GLboolean k;
+
+ ASSERT(dstFormat == &_mesa_texformat_sargb8);
+
+ /* reuse normal rgba texstore code */
+ newDstFormat = &_mesa_texformat_argb8888;
+
+ k = _mesa_texstore_argb8888(ctx, dims, baseInternalFormat,
+ newDstFormat, dstAddr,
+ dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageOffsets,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType,
+ srcAddr, srcPacking);
+ return k;
+}
+
+
+GLboolean
+_mesa_texstore_sl8(TEXSTORE_PARAMS)
+{
+ const struct gl_texture_format *newDstFormat;
+ GLboolean k;
+
+ ASSERT(dstFormat == &_mesa_texformat_sl8);
+
+ newDstFormat = &_mesa_texformat_l8;
+
+ /* _mesa_textore_a8 handles luminance8 too */
+ k = _mesa_texstore_a8(ctx, dims, baseInternalFormat,
+ newDstFormat, dstAddr,
+ dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageOffsets,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType,
+ srcAddr, srcPacking);
+ return k;
+}
+
+
+GLboolean
+_mesa_texstore_sla8(TEXSTORE_PARAMS)
+{
+ const struct gl_texture_format *newDstFormat;
+ GLboolean k;
+
+ ASSERT(dstFormat == &_mesa_texformat_sla8);
+
+ /* reuse normal luminance/alpha texstore code */
+ newDstFormat = &_mesa_texformat_al88;
+
+ k = _mesa_texstore_al88(ctx, dims, baseInternalFormat,
+ newDstFormat, dstAddr,
+ dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageOffsets,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType,
+ srcAddr, srcPacking);
+ return k;
+}
+
+#endif /* FEATURE_EXT_texture_sRGB */
+
+
+/**
+ * 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!
+ */
+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)
+{
+ GLubyte *buf;
+
+ if (!_mesa_is_bufferobj(unpack->BufferObj)) {
+ /* 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;
+ }
+
+ 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;
+ }
+
+ 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 (!_mesa_is_bufferobj(packing->BufferObj)) {
+ /* not using a PBO - return pointer unchanged */
+ return pixels;
+ }
+ if ((const GLubyte *) pixels + imageSize >
+ ((const GLubyte *) 0) + 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;
+ }
+
+ 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 (_mesa_is_bufferobj(unpack->BufferObj)) {
+ ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
+ unpack->BufferObj);
+ }
+}
+
+
+
+/**
+ * Adaptor for fetching a GLchan texel from a float-valued texture.
+ */
+static void
+fetch_texel_float_to_chan(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLchan *texelOut)
+{
+ GLfloat temp[4];
+ ASSERT(texImage->FetchTexelf);
+ texImage->FetchTexelf(texImage, i, j, k, temp);
+ if (texImage->TexFormat->BaseFormat == GL_DEPTH_COMPONENT ||
+ texImage->TexFormat->BaseFormat == GL_DEPTH_STENCIL_EXT) {
+ /* just one channel */
+ UNCLAMPED_FLOAT_TO_CHAN(texelOut[0], temp[0]);
+ }
+ else {
+ /* four channels */
+ UNCLAMPED_FLOAT_TO_CHAN(texelOut[0], temp[0]);
+ UNCLAMPED_FLOAT_TO_CHAN(texelOut[1], temp[1]);
+ UNCLAMPED_FLOAT_TO_CHAN(texelOut[2], temp[2]);
+ UNCLAMPED_FLOAT_TO_CHAN(texelOut[3], temp[3]);
+ }
+}
+
+
+/**
+ * Adaptor for fetching a float texel from a GLchan-valued texture.
+ */
+static void
+fetch_texel_chan_to_float(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texelOut)
+{
+ GLchan temp[4];
+ ASSERT(texImage->FetchTexelc);
+ texImage->FetchTexelc(texImage, i, j, k, temp);
+ if (texImage->TexFormat->BaseFormat == GL_DEPTH_COMPONENT ||
+ texImage->TexFormat->BaseFormat == GL_DEPTH_STENCIL_EXT) {
+ /* just one channel */
+ texelOut[0] = CHAN_TO_FLOAT(temp[0]);
+ }
+ else {
+ /* four channels */
+ texelOut[0] = CHAN_TO_FLOAT(temp[0]);
+ texelOut[1] = CHAN_TO_FLOAT(temp[1]);
+ texelOut[2] = CHAN_TO_FLOAT(temp[2]);
+ texelOut[3] = CHAN_TO_FLOAT(temp[3]);
+ }
+}
+
+
+/**
+ * Initialize the texture image's FetchTexelc and FetchTexelf methods.
+ */
+void
+_mesa_set_fetch_functions(struct gl_texture_image *texImage, GLuint dims)
+{
+ ASSERT(dims == 1 || dims == 2 || dims == 3);
+ ASSERT(texImage->TexFormat);
+
+ switch (dims) {
+ case 1:
+ texImage->FetchTexelc = texImage->TexFormat->FetchTexel1D;
+ texImage->FetchTexelf = texImage->TexFormat->FetchTexel1Df;
+ break;
+ case 2:
+ texImage->FetchTexelc = texImage->TexFormat->FetchTexel2D;
+ texImage->FetchTexelf = texImage->TexFormat->FetchTexel2Df;
+ break;
+ case 3:
+ texImage->FetchTexelc = texImage->TexFormat->FetchTexel3D;
+ texImage->FetchTexelf = texImage->TexFormat->FetchTexel3Df;
+ break;
+ default:
+ ;
+ }
+
+ /* now check if we need to use a float/chan adaptor */
+ if (!texImage->FetchTexelc) {
+ texImage->FetchTexelc = fetch_texel_float_to_chan;
+ }
+ else if (!texImage->FetchTexelf) {
+ texImage->FetchTexelf = fetch_texel_chan_to_float;
+ }
+
+
+ ASSERT(texImage->FetchTexelc);
+ ASSERT(texImage->FetchTexelf);
+}
+
+
+/**
+ * Choose the actual storage format for a new texture image.
+ * Mainly, this is a wrapper for the driver's ChooseTextureFormat() function.
+ * Also set some other texImage fields related to texture compression, etc.
+ * \param ctx rendering context
+ * \param texImage the gl_texture_image
+ * \param dims texture dimensions (1, 2 or 3)
+ * \param format the user-specified format parameter
+ * \param type the user-specified type parameter
+ * \param internalFormat the user-specified internal format hint
+ */
+static void
+choose_texture_format(GLcontext *ctx, struct gl_texture_image *texImage,
+ GLuint dims,
+ GLenum format, GLenum type, GLint internalFormat)
+{
+ ASSERT(dims == 1 || dims == 2 || dims == 3);
+ ASSERT(ctx->Driver.ChooseTextureFormat);
+
+ texImage->TexFormat
+ = ctx->Driver.ChooseTextureFormat(ctx, internalFormat, format, type);
+
+ ASSERT(texImage->TexFormat);
+
+ _mesa_set_fetch_functions(texImage, dims);
+
+ if (texImage->TexFormat->TexelBytes == 0) {
+ /* must be a compressed format */
+ texImage->IsCompressed = GL_TRUE;
+ texImage->CompressedSize =
+ ctx->Driver.CompressedTextureSize(ctx, texImage->Width,
+ texImage->Height, texImage->Depth,
+ texImage->TexFormat->MesaFormat);
+ }
+ else {
+ /* non-compressed format */
+ texImage->IsCompressed = GL_FALSE;
+ texImage->CompressedSize = 0;
+ }
+}
+
+
+
+/**
+ * This is the software fallback for Driver.TexImage1D()
+ * and Driver.CopyTexImage1D().
+ * \sa _mesa_store_teximage2d()
+ * Note that the width may not be the actual texture width since it may
+ * be changed by convolution w/ GL_REDUCE. The texImage->Width field will
+ * have the actual texture size.
+ */
+void
+_mesa_store_teximage1d(GLcontext *ctx, GLenum target, GLint level,
+ GLint internalFormat,
+ GLint width, GLint border,
+ GLenum format, GLenum type, const GLvoid *pixels,
+ const struct gl_pixelstore_attrib *packing,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ GLint sizeInBytes;
+ (void) border;
+
+ choose_texture_format(ctx, texImage, 1, format, type, internalFormat);
+
+ /* allocate memory */
+ if (texImage->IsCompressed)
+ sizeInBytes = texImage->CompressedSize;
+ else
+ sizeInBytes = texImage->Width * texImage->TexFormat->TexelBytes;
+ texImage->Data = _mesa_alloc_texmemory(sizeInBytes);
+ if (!texImage->Data) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D");
+ return;
+ }
+
+ 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;
+ GLboolean success;
+ ASSERT(texImage->TexFormat->StoreImage);
+ success = texImage->TexFormat->StoreImage(ctx, 1, texImage->_BaseFormat,
+ texImage->TexFormat,
+ texImage->Data,
+ 0, 0, 0, /* dstX/Y/Zoffset */
+ dstRowStride,
+ texImage->ImageOffsets,
+ 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) {
+ ctx->Driver.GenerateMipmap(ctx, target, texObj);
+ }
+
+ _mesa_unmap_teximage_pbo(ctx, packing);
+}
+
+
+/**
+ * This is the software fallback for Driver.TexImage2D()
+ * and Driver.CopyTexImage2D().
+ *
+ * This function is oriented toward storing images in main memory, rather
+ * than VRAM. Device driver's can easily plug in their own replacement.
+ *
+ * Note: width and height may be pre-convolved dimensions, but
+ * texImage->Width and texImage->Height will be post-convolved dimensions.
+ */
+void
+_mesa_store_teximage2d(GLcontext *ctx, GLenum target, GLint level,
+ GLint internalFormat,
+ GLint width, GLint height, GLint border,
+ GLenum format, GLenum type, const void *pixels,
+ const struct gl_pixelstore_attrib *packing,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ GLint texelBytes, sizeInBytes;
+ (void) border;
+
+ choose_texture_format(ctx, texImage, 2, format, type, internalFormat);
+
+ texelBytes = texImage->TexFormat->TexelBytes;
+
+ /* allocate memory */
+ if (texImage->IsCompressed)
+ sizeInBytes = texImage->CompressedSize;
+ else
+ sizeInBytes = texImage->Width * texImage->Height * texelBytes;
+ texImage->Data = _mesa_alloc_texmemory(sizeInBytes);
+ if (!texImage->Data) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
+ return;
+ }
+
+ 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;
+ GLboolean success;
+ if (texImage->IsCompressed) {
+ dstRowStride
+ = _mesa_compressed_row_stride(texImage->TexFormat->MesaFormat, width);
+ }
+ else {
+ dstRowStride = texImage->RowStride * texImage->TexFormat->TexelBytes;
+ }
+ ASSERT(texImage->TexFormat->StoreImage);
+ success = texImage->TexFormat->StoreImage(ctx, 2, texImage->_BaseFormat,
+ texImage->TexFormat,
+ texImage->Data,
+ 0, 0, 0, /* dstX/Y/Zoffset */
+ dstRowStride,
+ texImage->ImageOffsets,
+ 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) {
+ ctx->Driver.GenerateMipmap(ctx, target, texObj);
+ }
+
+ _mesa_unmap_teximage_pbo(ctx, packing);
+}
+
+
+
+/**
+ * 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,
+ GLint internalFormat,
+ GLint width, GLint height, GLint depth, GLint border,
+ GLenum format, GLenum type, const void *pixels,
+ const struct gl_pixelstore_attrib *packing,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ GLint texelBytes, sizeInBytes;
+ (void) border;
+
+ choose_texture_format(ctx, texImage, 3, format, type, internalFormat);
+
+ texelBytes = texImage->TexFormat->TexelBytes;
+
+ /* allocate memory */
+ if (texImage->IsCompressed)
+ sizeInBytes = texImage->CompressedSize;
+ else
+ sizeInBytes = width * height * depth * texelBytes;
+ texImage->Data = _mesa_alloc_texmemory(sizeInBytes);
+ if (!texImage->Data) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage3D");
+ return;
+ }
+
+ 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;
+ GLboolean success;
+ if (texImage->IsCompressed) {
+ dstRowStride
+ = _mesa_compressed_row_stride(texImage->TexFormat->MesaFormat, width);
+ }
+ else {
+ dstRowStride = texImage->RowStride * texImage->TexFormat->TexelBytes;
+ }
+ ASSERT(texImage->TexFormat->StoreImage);
+ success = texImage->TexFormat->StoreImage(ctx, 3, texImage->_BaseFormat,
+ texImage->TexFormat,
+ texImage->Data,
+ 0, 0, 0, /* dstX/Y/Zoffset */
+ dstRowStride,
+ texImage->ImageOffsets,
+ 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) {
+ ctx->Driver.GenerateMipmap(ctx, target, texObj);
+ }
+
+ _mesa_unmap_teximage_pbo(ctx, packing);
+}
+
+
+
+
+/*
+ * This is the software fallback for Driver.TexSubImage1D()
+ * and Driver.CopyTexSubImage1D().
+ */
+void
+_mesa_store_texsubimage1d(GLcontext *ctx, GLenum target, GLint level,
+ GLint xoffset, GLint width,
+ GLenum format, GLenum type, const void *pixels,
+ const struct gl_pixelstore_attrib *packing,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ /* get pointer to src pixels (may be in a pbo which we'll map here) */
+ pixels = _mesa_validate_pbo_teximage(ctx, 1, width, 1, 1, format, type,
+ pixels, packing, "glTexSubImage1D");
+ if (!pixels)
+ return;
+
+ {
+ const GLint dstRowStride = 0;
+ GLboolean success;
+ ASSERT(texImage->TexFormat->StoreImage);
+ success = texImage->TexFormat->StoreImage(ctx, 1, texImage->_BaseFormat,
+ texImage->TexFormat,
+ texImage->Data,
+ xoffset, 0, 0, /* offsets */
+ dstRowStride,
+ texImage->ImageOffsets,
+ 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) {
+ ctx->Driver.GenerateMipmap(ctx, target, texObj);
+ }
+
+ _mesa_unmap_teximage_pbo(ctx, packing);
+}
+
+
+
+/**
+ * This is the software fallback for Driver.TexSubImage2D()
+ * and Driver.CopyTexSubImage2D().
+ */
+void
+_mesa_store_texsubimage2d(GLcontext *ctx, GLenum target, GLint level,
+ GLint xoffset, GLint yoffset,
+ GLint width, GLint height,
+ GLenum format, GLenum type, const void *pixels,
+ const struct gl_pixelstore_attrib *packing,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ /* get pointer to src pixels (may be in a pbo which we'll map here) */
+ pixels = _mesa_validate_pbo_teximage(ctx, 2, width, height, 1, format, type,
+ pixels, packing, "glTexSubImage2D");
+ if (!pixels)
+ return;
+
+ {
+ GLint dstRowStride = 0;
+ GLboolean success;
+ if (texImage->IsCompressed) {
+ dstRowStride = _mesa_compressed_row_stride(texImage->TexFormat->MesaFormat,
+ texImage->Width);
+ }
+ else {
+ dstRowStride = texImage->RowStride * texImage->TexFormat->TexelBytes;
+ }
+ ASSERT(texImage->TexFormat->StoreImage);
+ success = texImage->TexFormat->StoreImage(ctx, 2, texImage->_BaseFormat,
+ texImage->TexFormat,
+ texImage->Data,
+ xoffset, yoffset, 0,
+ dstRowStride,
+ texImage->ImageOffsets,
+ 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) {
+ ctx->Driver.GenerateMipmap(ctx, target, 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,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLint width, GLint height, GLint depth,
+ GLenum format, GLenum type, const void *pixels,
+ const struct gl_pixelstore_attrib *packing,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ /* get pointer to src pixels (may be in a pbo which we'll map here) */
+ pixels = _mesa_validate_pbo_teximage(ctx, 3, width, height, depth, format,
+ type, pixels, packing,
+ "glTexSubImage3D");
+ if (!pixels)
+ return;
+
+ {
+ GLint dstRowStride;
+ GLboolean success;
+ if (texImage->IsCompressed) {
+ dstRowStride = _mesa_compressed_row_stride(texImage->TexFormat->MesaFormat,
+ texImage->Width);
+ }
+ else {
+ dstRowStride = texImage->RowStride * texImage->TexFormat->TexelBytes;
+ }
+ ASSERT(texImage->TexFormat->StoreImage);
+ success = texImage->TexFormat->StoreImage(ctx, 3, texImage->_BaseFormat,
+ texImage->TexFormat,
+ texImage->Data,
+ xoffset, yoffset, zoffset,
+ dstRowStride,
+ texImage->ImageOffsets,
+ 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) {
+ ctx->Driver.GenerateMipmap(ctx, target, texObj);
+ }
+
+ _mesa_unmap_teximage_pbo(ctx, packing);
+}
+
+
+/*
+ * Fallback for Driver.CompressedTexImage1D()
+ */
+void
+_mesa_store_compressed_teximage1d(GLcontext *ctx, GLenum target, GLint level,
+ GLint internalFormat,
+ GLint width, GLint border,
+ 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) internalFormat;
+ (void) width; (void) border;
+ (void) imageSize; (void) data;
+ (void) texObj;
+ (void) texImage;
+}
+
+
+
+/**
+ * Fallback for Driver.CompressedTexImage2D()
+ */
+void
+_mesa_store_compressed_teximage2d(GLcontext *ctx, GLenum target, GLint level,
+ GLint internalFormat,
+ GLint width, GLint height, GLint border,
+ GLsizei imageSize, const GLvoid *data,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ (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_texture_format(ctx, texImage, 2, 0, 0, internalFormat);
+
+ /* allocate storage */
+ texImage->Data = _mesa_alloc_texmemory(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) {
+ ctx->Driver.GenerateMipmap(ctx, target, texObj);
+ }
+
+ _mesa_unmap_teximage_pbo(ctx, &ctx->Unpack);
+}
+
+
+
+/*
+ * Fallback for Driver.CompressedTexImage3D()
+ */
+void
+_mesa_store_compressed_teximage3d(GLcontext *ctx, GLenum target, GLint level,
+ GLint internalFormat,
+ GLint width, GLint height, GLint depth,
+ GLint border,
+ 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) internalFormat;
+ (void) width; (void) height; (void) depth;
+ (void) border;
+ (void) imageSize; (void) data;
+ (void) texObj;
+ (void) texImage;
+}
+
+
+
+/**
+ * Fallback for Driver.CompressedTexSubImage1D()
+ */
+void
+_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)
+{
+ /* there are no compressed 1D texture formats yet */
+ (void) ctx;
+ (void) target; (void) level;
+ (void) xoffset; (void) width;
+ (void) format;
+ (void) imageSize; (void) data;
+ (void) texObj;
+ (void) texImage;
+}
+
+
+/**
+ * Fallback for Driver.CompressedTexSubImage2D()
+ */
+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)
+{
+ GLint bytesPerRow, destRowStride, srcRowStride;
+ GLint i, rows;
+ GLubyte *dest;
+ const GLubyte *src;
+ const GLuint mesaFormat = texImage->TexFormat->MesaFormat;
+
+ (void) format;
+
+ /* 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);
+
+ /* get pointer to src pixels (may be in a pbo which we'll map here) */
+ data = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, data,
+ &ctx->Unpack,
+ "glCompressedTexSubImage2D");
+ if (!data)
+ return;
+
+ srcRowStride = _mesa_compressed_row_stride(mesaFormat, width);
+ src = (const GLubyte *) data;
+
+ destRowStride = _mesa_compressed_row_stride(mesaFormat, texImage->Width);
+ dest = _mesa_compressed_image_address(xoffset, yoffset, 0,
+ texImage->TexFormat->MesaFormat,
+ 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) {
+ ctx->Driver.GenerateMipmap(ctx, target, 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)
+{
+ /* there are no compressed 3D texture formats yet */
+ (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;
+}