+++ /dev/null
-/*
- * 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;
- * etc...
- *
- * Texture image processing is actually kind of complicated. We have to do:
- * Format/type conversions
- * pixel unpacking
- * pixel transfer (scale, bais, lookup, etc)
- *
- * These functions can handle most everything, including processing full
- * images and sub-images.
- */
-
-#include <precomp.h>
-
-enum {
- ZERO = 4,
- ONE = 5
-};
-
-
-/**
- * Texture image storage function.
- */
-typedef GLboolean (*StoreTexImageFunc)(TEXSTORE_PARAMS);
-
-
-/**
- * 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:
- case GL_RG:
- 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,
- IDX_RG,
- 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)
- },
-
- {
- IDX_RG,
- MAP4(0, 1, ZERO, ONE),
- MAP2(0, 1)
- },
-};
-
-
-
-/**
- * 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;
- case GL_RG: return IDX_RG;
- 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;
-
-#if 0
- 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]);
-#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, we 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.
- */
-GLfloat *
-_mesa_make_temp_float_image(struct gl_context *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,
- GLbitfield transferOps)
-{
- GLfloat *tempImage;
- const GLint components = _mesa_components_in_format(logicalBaseFormat);
- const GLint srcStride =
- _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
- GLfloat *dst;
- GLint img, row;
-
- ASSERT(dims >= 1 && dims <= 3);
-
- ASSERT(logicalBaseFormat == GL_RGBA ||
- logicalBaseFormat == GL_RGB ||
- logicalBaseFormat == GL_RG ||
- logicalBaseFormat == GL_RED ||
- logicalBaseFormat == GL_LUMINANCE_ALPHA ||
- logicalBaseFormat == GL_LUMINANCE ||
- logicalBaseFormat == GL_ALPHA ||
- logicalBaseFormat == GL_INTENSITY ||
- logicalBaseFormat == GL_DEPTH_COMPONENT);
-
- ASSERT(textureBaseFormat == GL_RGBA ||
- textureBaseFormat == GL_RGB ||
- textureBaseFormat == GL_RG ||
- textureBaseFormat == GL_RED ||
- textureBaseFormat == GL_LUMINANCE_ALPHA ||
- textureBaseFormat == GL_LUMINANCE ||
- textureBaseFormat == GL_ALPHA ||
- textureBaseFormat == GL_INTENSITY ||
- textureBaseFormat == GL_DEPTH_COMPONENT);
-
- tempImage = (GLfloat *) 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 *) malloc(srcWidth * srcHeight * srcDepth
- * texComponents * sizeof(GLfloat));
- if (!newImage) {
- 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];
- }
- }
-
- free(tempImage);
- tempImage = newImage;
- }
-
- return tempImage;
-}
-
-
-/**
- * Make temporary image with uint pixel values. Used for unsigned
- * integer-valued textures.
- */
-static GLuint *
-make_temp_uint_image(struct gl_context *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 *tempImage;
- const GLint components = _mesa_components_in_format(logicalBaseFormat);
- const GLint srcStride =
- _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
- GLuint *dst;
- GLint img, row;
-
- ASSERT(dims >= 1 && dims <= 3);
-
- ASSERT(logicalBaseFormat == GL_RGBA ||
- logicalBaseFormat == GL_RGB ||
- logicalBaseFormat == GL_RG ||
- logicalBaseFormat == GL_RED ||
- logicalBaseFormat == GL_LUMINANCE_ALPHA ||
- logicalBaseFormat == GL_LUMINANCE ||
- logicalBaseFormat == GL_INTENSITY ||
- logicalBaseFormat == GL_ALPHA);
-
- ASSERT(textureBaseFormat == GL_RGBA ||
- textureBaseFormat == GL_RGB ||
- textureBaseFormat == GL_RG ||
- textureBaseFormat == GL_RED ||
- textureBaseFormat == GL_LUMINANCE_ALPHA ||
- textureBaseFormat == GL_LUMINANCE ||
- textureBaseFormat == GL_INTENSITY ||
- textureBaseFormat == GL_ALPHA);
-
- tempImage = (GLuint *) malloc(srcWidth * srcHeight * srcDepth
- * components * sizeof(GLuint));
- 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_uint(ctx, srcWidth, logicalBaseFormat,
- dst, srcFormat, srcType, src,
- srcPacking);
- dst += srcWidth * components;
- src += srcStride;
- }
- }
-
- if (logicalBaseFormat != textureBaseFormat) {
- /* more work */
- GLint texComponents = _mesa_components_in_format(textureBaseFormat);
- GLint logComponents = _mesa_components_in_format(logicalBaseFormat);
- GLuint *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 = (GLuint *) malloc(srcWidth * srcHeight * srcDepth
- * texComponents * sizeof(GLuint));
- if (!newImage) {
- 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] = 1;
- else
- newImage[i * texComponents + k] = tempImage[i * logComponents + j];
- }
- }
-
- free(tempImage);
- tempImage = newImage;
- }
-
- return tempImage;
-}
-
-
-
-/**
- * Make a temporary (color) texture image with GLubyte 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, we 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 = GLubyte.
- */
-GLubyte *
-_mesa_make_temp_ubyte_image(struct gl_context *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);
- GLint img, row;
- GLubyte *tempImage, *dst;
-
- ASSERT(dims >= 1 && dims <= 3);
-
- ASSERT(logicalBaseFormat == GL_RGBA ||
- logicalBaseFormat == GL_RGB ||
- logicalBaseFormat == GL_RG ||
- logicalBaseFormat == GL_RED ||
- logicalBaseFormat == GL_LUMINANCE_ALPHA ||
- logicalBaseFormat == GL_LUMINANCE ||
- logicalBaseFormat == GL_ALPHA ||
- logicalBaseFormat == GL_INTENSITY);
-
- ASSERT(textureBaseFormat == GL_RGBA ||
- textureBaseFormat == GL_RGB ||
- textureBaseFormat == GL_RG ||
- textureBaseFormat == GL_RED ||
- textureBaseFormat == GL_LUMINANCE_ALPHA ||
- textureBaseFormat == GL_LUMINANCE ||
- textureBaseFormat == GL_ALPHA ||
- textureBaseFormat == GL_INTENSITY);
-
- /* unpack and transfer the source image */
- tempImage = (GLubyte *) malloc(srcWidth * srcHeight * srcDepth
- * components * sizeof(GLubyte));
- 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_ubyte(ctx, srcWidth, logicalBaseFormat, dst,
- srcFormat, srcType, src, srcPacking,
- transferOps);
- dst += srcWidth * components;
- src += srcStride;
- }
- }
-
- if (logicalBaseFormat != textureBaseFormat) {
- /* one more conversion step */
- GLint texComponents = _mesa_components_in_format(textureBaseFormat);
- GLint logComponents = _mesa_components_in_format(logicalBaseFormat);
- GLubyte *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 = (GLubyte *) malloc(srcWidth * srcHeight * srcDepth
- * texComponents * sizeof(GLubyte));
- if (!newImage) {
- 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] = 255;
- else
- newImage[i * texComponents + k] = tempImage[i * logComponents + j];
- }
- }
-
- 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 };
-
-
-/**
- * For 1-byte/pixel formats (or 8_8_8_8 packed formats), return a
- * mapping array depending on endianness.
- */
-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;
- }
-}
-
-
-/**
- * For 1-byte/pixel formats (or 8_8_8_8 packed formats), return a
- * mapping array depending on pixelstore byte swapping state.
- */
-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(struct gl_context *ctx,
- GLuint dimensions,
- GLenum srcFormat,
- GLenum srcType,
-
- GLenum baseInternalFormat,
-
- const GLubyte *rgba2dst,
- GLuint dstComponents,
-
- GLint dstRowStride,
- GLubyte **dstSlices,
-
- 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]]]]];
-
-/* 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 = dstSlices[0];
- 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 = dstSlices[img];
- 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(struct gl_context *ctx,
- GLuint dimensions,
- gl_format dstFormat,
- GLint dstRowStride,
- GLubyte **dstSlices,
- 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 GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
- const GLint bytesPerRow = srcWidth * texelBytes;
-
- if (dstRowStride == srcRowStride &&
- dstRowStride == bytesPerRow) {
- /* memcpy image by image */
- GLint img;
- for (img = 0; img < srcDepth; img++) {
- GLubyte *dstImage = dstSlices[img];
- memcpy(dstImage, srcImage, bytesPerRow * srcHeight);
- srcImage += srcImageStride;
- }
- }
- else {
- /* memcpy row by row */
- GLint img, row;
- for (img = 0; img < srcDepth; img++) {
- const GLubyte *srcRow = srcImage;
- GLubyte *dstRow = dstSlices[img];
- for (row = 0; row < srcHeight; row++) {
- memcpy(dstRow, srcRow, bytesPerRow);
- dstRow += dstRowStride;
- srcRow += srcRowStride;
- }
- srcImage += srcImageStride;
- }
- }
-}
-
-
-
-/**
- * Store a 32-bit integer or float depth component texture image.
- */
-static GLboolean
-_mesa_texstore_z32(TEXSTORE_PARAMS)
-{
- const GLuint depthScale = 0xffffffff;
- GLenum dstType;
- (void) dims;
- ASSERT(dstFormat == MESA_FORMAT_Z32 ||
- dstFormat == MESA_FORMAT_Z32_FLOAT);
- ASSERT(_mesa_get_format_bytes(dstFormat) == sizeof(GLuint));
-
- if (dstFormat == MESA_FORMAT_Z32)
- dstType = GL_UNSIGNED_INT;
- else
- dstType = GL_FLOAT;
-
- if (ctx->Pixel.DepthScale == 1.0f &&
- ctx->Pixel.DepthBias == 0.0f &&
- !srcPacking->SwapBytes &&
- baseInternalFormat == GL_DEPTH_COMPONENT &&
- srcFormat == GL_DEPTH_COMPONENT &&
- srcType == dstType) {
- /* simple memcpy path */
- memcpy_texture(ctx, dims,
- dstFormat,
- dstRowStride, dstSlices,
- srcWidth, srcHeight, srcDepth, srcFormat, srcType,
- srcAddr, srcPacking);
- }
- else {
- /* general path */
- GLint img, row;
- for (img = 0; img < srcDepth; img++) {
- GLubyte *dstRow = dstSlices[img];
- 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,
- dstType, dstRow,
- depthScale, srcType, src, srcPacking);
- dstRow += dstRowStride;
- }
- }
- }
- return GL_TRUE;
-}
-
-
-/**
- * Store a 24-bit integer depth component texture image.
- */
-static GLboolean
-_mesa_texstore_x8_z24(TEXSTORE_PARAMS)
-{
- const GLuint depthScale = 0xffffff;
-
- (void) dims;
- ASSERT(dstFormat == MESA_FORMAT_X8_Z24);
-
- {
- /* general path */
- GLint img, row;
- for (img = 0; img < srcDepth; img++) {
- GLubyte *dstRow = dstSlices[img];
- 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;
-}
-
-
-/**
- * Store a 24-bit integer depth component texture image.
- */
-static GLboolean
-_mesa_texstore_z24_x8(TEXSTORE_PARAMS)
-{
- const GLuint depthScale = 0xffffff;
-
- (void) dims;
- ASSERT(dstFormat == MESA_FORMAT_Z24_X8);
-
- {
- /* general path */
- GLint img, row;
- for (img = 0; img < srcDepth; img++) {
- GLubyte *dstRow = dstSlices[img];
- for (row = 0; row < srcHeight; row++) {
- const GLvoid *src = _mesa_image_address(dims, srcPacking,
- srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0);
- GLuint *dst = (GLuint *) dstRow;
- GLint i;
- _mesa_unpack_depth_span(ctx, srcWidth,
- GL_UNSIGNED_INT, dst,
- depthScale, srcType, src, srcPacking);
- for (i = 0; i < srcWidth; i++)
- dst[i] <<= 8;
- dstRow += dstRowStride;
- }
- }
- }
- return GL_TRUE;
-}
-
-
-/**
- * Store a 16-bit integer depth component texture image.
- */
-static GLboolean
-_mesa_texstore_z16(TEXSTORE_PARAMS)
-{
- const GLuint depthScale = 0xffff;
- (void) dims;
- ASSERT(dstFormat == MESA_FORMAT_Z16);
- ASSERT(_mesa_get_format_bytes(dstFormat) == 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,
- dstRowStride, dstSlices,
- srcWidth, srcHeight, srcDepth, srcFormat, srcType,
- srcAddr, srcPacking);
- }
- else {
- /* general path */
- GLint img, row;
- for (img = 0; img < srcDepth; img++) {
- GLubyte *dstRow = dstSlices[img];
- 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.
- */
-static GLboolean
-_mesa_texstore_rgb565(TEXSTORE_PARAMS)
-{
- const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
-
- ASSERT(dstFormat == MESA_FORMAT_RGB565 ||
- dstFormat == MESA_FORMAT_RGB565_REV);
- ASSERT(_mesa_get_format_bytes(dstFormat) == 2);
-
- if (!ctx->_ImageTransferState &&
- !srcPacking->SwapBytes &&
- dstFormat == MESA_FORMAT_RGB565 &&
- baseInternalFormat == GL_RGB &&
- srcFormat == GL_RGB &&
- srcType == GL_UNSIGNED_SHORT_5_6_5) {
- /* simple memcpy path */
- memcpy_texture(ctx, dims,
- dstFormat,
- dstRowStride, dstSlices,
- 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 = dstSlices[0];
- 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_FORMAT_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 GLubyte *tempImage = _mesa_make_temp_ubyte_image(ctx, dims,
- baseInternalFormat,
- baseFormat,
- srcWidth, srcHeight, srcDepth,
- srcFormat, srcType, srcAddr,
- srcPacking);
- const GLubyte *src = tempImage;
- GLint img, row, col;
- if (!tempImage)
- return GL_FALSE;
- for (img = 0; img < srcDepth; img++) {
- GLubyte *dstRow = dstSlices[img];
- for (row = 0; row < srcHeight; row++) {
- GLushort *dstUS = (GLushort *) dstRow;
- /* check for byteswapped format */
- if (dstFormat == MESA_FORMAT_RGB565) {
- for (col = 0; col < srcWidth; col++) {
- dstUS[col] = PACK_COLOR_565( src[RCOMP],
- src[GCOMP],
- src[BCOMP] );
- src += 3;
- }
- }
- else {
- for (col = 0; col < srcWidth; col++) {
- dstUS[col] = PACK_COLOR_565_REV( src[RCOMP],
- src[GCOMP],
- src[BCOMP] );
- src += 3;
- }
- }
- dstRow += dstRowStride;
- }
- }
- free((void *) tempImage);
- }
- return GL_TRUE;
-}
-
-
-/**
- * Store a texture in MESA_FORMAT_RGBA8888 or MESA_FORMAT_RGBA8888_REV.
- */
-static GLboolean
-_mesa_texstore_rgba8888(TEXSTORE_PARAMS)
-{
- const GLboolean littleEndian = _mesa_little_endian();
- const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
-
- ASSERT(dstFormat == MESA_FORMAT_RGBA8888 ||
- dstFormat == MESA_FORMAT_RGBA8888_REV ||
- dstFormat == MESA_FORMAT_RGBX8888 ||
- dstFormat == MESA_FORMAT_RGBX8888_REV);
- ASSERT(_mesa_get_format_bytes(dstFormat) == 4);
-
- if (!ctx->_ImageTransferState &&
- !srcPacking->SwapBytes &&
- (dstFormat == MESA_FORMAT_RGBA8888 ||
- dstFormat == MESA_FORMAT_RGBX8888) &&
- 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,
- dstRowStride, dstSlices,
- srcWidth, srcHeight, srcDepth, srcFormat, srcType,
- srcAddr, srcPacking);
- }
- else if (!ctx->_ImageTransferState &&
- !srcPacking->SwapBytes &&
- (dstFormat == MESA_FORMAT_RGBA8888_REV ||
- dstFormat == MESA_FORMAT_RGBX8888_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,
- dstRowStride, dstSlices,
- 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_FORMAT_RGBA8888 ||
- dstFormat == MESA_FORMAT_RGBX8888)) ||
- (!littleEndian && (dstFormat == MESA_FORMAT_RGBA8888_REV ||
- dstFormat == MESA_FORMAT_RGBX8888_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,
- dstRowStride, dstSlices,
- srcWidth, srcHeight, srcDepth, srcAddr,
- srcPacking);
- }
- else {
- /* general path */
- const GLubyte *tempImage = _mesa_make_temp_ubyte_image(ctx, dims,
- baseInternalFormat,
- baseFormat,
- srcWidth, srcHeight, srcDepth,
- srcFormat, srcType, srcAddr,
- srcPacking);
- const GLubyte *src = tempImage;
- GLint img, row, col;
- if (!tempImage)
- return GL_FALSE;
- for (img = 0; img < srcDepth; img++) {
- GLubyte *dstRow = dstSlices[img];
- for (row = 0; row < srcHeight; row++) {
- GLuint *dstUI = (GLuint *) dstRow;
- if (dstFormat == MESA_FORMAT_RGBA8888 ||
- dstFormat == MESA_FORMAT_RGBX8888) {
- for (col = 0; col < srcWidth; col++) {
- dstUI[col] = PACK_COLOR_8888( src[RCOMP],
- src[GCOMP],
- src[BCOMP],
- src[ACOMP] );
- src += 4;
- }
- }
- else {
- for (col = 0; col < srcWidth; col++) {
- dstUI[col] = PACK_COLOR_8888_REV( src[RCOMP],
- src[GCOMP],
- src[BCOMP],
- src[ACOMP] );
- src += 4;
- }
- }
- dstRow += dstRowStride;
- }
- }
- free((void *) tempImage);
- }
- return GL_TRUE;
-}
-
-
-static GLboolean
-_mesa_texstore_argb8888(TEXSTORE_PARAMS)
-{
- const GLboolean littleEndian = _mesa_little_endian();
- const GLenum baseFormat = GL_RGBA;
-
- ASSERT(dstFormat == MESA_FORMAT_ARGB8888 ||
- dstFormat == MESA_FORMAT_ARGB8888_REV ||
- dstFormat == MESA_FORMAT_XRGB8888 ||
- dstFormat == MESA_FORMAT_XRGB8888_REV );
- ASSERT(_mesa_get_format_bytes(dstFormat) == 4);
-
- if (!ctx->_ImageTransferState &&
- !srcPacking->SwapBytes &&
- (dstFormat == MESA_FORMAT_ARGB8888 ||
- dstFormat == MESA_FORMAT_XRGB8888) &&
- 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,
- dstRowStride, dstSlices,
- srcWidth, srcHeight, srcDepth, srcFormat, srcType,
- srcAddr, srcPacking);
- }
- else if (!ctx->_ImageTransferState &&
- !srcPacking->SwapBytes &&
- (dstFormat == MESA_FORMAT_ARGB8888_REV ||
- dstFormat == MESA_FORMAT_XRGB8888_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,
- dstRowStride, dstSlices,
- srcWidth, srcHeight, srcDepth, srcFormat, srcType,
- srcAddr, srcPacking);
- }
- else if (!ctx->_ImageTransferState &&
- !srcPacking->SwapBytes &&
- (dstFormat == MESA_FORMAT_ARGB8888 ||
- dstFormat == MESA_FORMAT_XRGB8888) &&
- 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 = dstSlices[img];
- 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_FORMAT_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 = dstSlices[img];
- 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_FORMAT_ARGB8888) ||
- (littleEndian && dstFormat == MESA_FORMAT_XRGB8888) ||
- (!littleEndian && dstFormat == MESA_FORMAT_ARGB8888_REV) ||
- (!littleEndian && dstFormat == MESA_FORMAT_XRGB8888_REV)) {
- dstmap[3] = 3; /* alpha */
- dstmap[2] = 0; /* red */
- dstmap[1] = 1; /* green */
- dstmap[0] = 2; /* blue */
- }
- else {
- assert((littleEndian && dstFormat == MESA_FORMAT_ARGB8888_REV) ||
- (!littleEndian && dstFormat == MESA_FORMAT_ARGB8888) ||
- (littleEndian && dstFormat == MESA_FORMAT_XRGB8888_REV) ||
- (!littleEndian && dstFormat == MESA_FORMAT_XRGB8888));
- dstmap[3] = 2;
- dstmap[2] = 1;
- dstmap[1] = 0;
- dstmap[0] = 3;
- }
-
- _mesa_swizzle_ubyte_image(ctx, dims,
- srcFormat,
- srcType,
- baseInternalFormat,
- dstmap, 4,
- dstRowStride,
- dstSlices,
- srcWidth, srcHeight, srcDepth, srcAddr,
- srcPacking);
- }
- else {
- /* general path */
- const GLubyte *tempImage = _mesa_make_temp_ubyte_image(ctx, dims,
- baseInternalFormat,
- baseFormat,
- srcWidth, srcHeight, srcDepth,
- srcFormat, srcType, srcAddr,
- srcPacking);
- const GLubyte *src = tempImage;
- GLint img, row, col;
- if (!tempImage)
- return GL_FALSE;
- for (img = 0; img < srcDepth; img++) {
- GLubyte *dstRow = dstSlices[img];
- for (row = 0; row < srcHeight; row++) {
- GLuint *dstUI = (GLuint *) dstRow;
- if (dstFormat == MESA_FORMAT_ARGB8888) {
- for (col = 0; col < srcWidth; col++) {
- dstUI[col] = PACK_COLOR_8888( src[ACOMP],
- src[RCOMP],
- src[GCOMP],
- src[BCOMP] );
- src += 4;
- }
- }
- else if (dstFormat == MESA_FORMAT_XRGB8888) {
- for (col = 0; col < srcWidth; col++) {
- dstUI[col] = PACK_COLOR_8888( 0xff,
- src[RCOMP],
- src[GCOMP],
- src[BCOMP] );
- src += 4;
- }
- }
- else {
- for (col = 0; col < srcWidth; col++) {
- dstUI[col] = PACK_COLOR_8888_REV( src[ACOMP],
- src[RCOMP],
- src[GCOMP],
- src[BCOMP] );
- src += 4;
- }
- }
- dstRow += dstRowStride;
- }
- }
- free((void *) tempImage);
- }
- return GL_TRUE;
-}
-
-
-static GLboolean
-_mesa_texstore_rgb888(TEXSTORE_PARAMS)
-{
- const GLboolean littleEndian = _mesa_little_endian();
- const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
-
- ASSERT(dstFormat == MESA_FORMAT_RGB888);
- ASSERT(_mesa_get_format_bytes(dstFormat) == 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,
- dstRowStride, dstSlices,
- 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 = dstSlices[img];
- 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,
- dstRowStride, dstSlices,
- srcWidth, srcHeight, srcDepth, srcAddr,
- srcPacking);
- }
- else {
- /* general path */
- const GLubyte *tempImage = _mesa_make_temp_ubyte_image(ctx, dims,
- baseInternalFormat,
- baseFormat,
- srcWidth, srcHeight, srcDepth,
- srcFormat, srcType, srcAddr,
- srcPacking);
- const GLubyte *src = (const GLubyte *) tempImage;
- GLint img, row, col;
- if (!tempImage)
- return GL_FALSE;
- for (img = 0; img < srcDepth; img++) {
- GLubyte *dstRow = dstSlices[img];
- for (row = 0; row < srcHeight; row++) {
-#if 0
- if (littleEndian) {
- for (col = 0; col < srcWidth; col++) {
- dstRow[col * 3 + 0] = src[RCOMP];
- dstRow[col * 3 + 1] = src[GCOMP];
- dstRow[col * 3 + 2] = 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] = src[BCOMP];
- dstRow[col * 3 + 1] = src[GCOMP];
- dstRow[col * 3 + 2] = src[RCOMP];
- src += 3;
- }
-#endif
- dstRow += dstRowStride;
- }
- }
- free((void *) tempImage);
- }
- return GL_TRUE;
-}
-
-
-static GLboolean
-_mesa_texstore_bgr888(TEXSTORE_PARAMS)
-{
- const GLboolean littleEndian = _mesa_little_endian();
- const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
-
- ASSERT(dstFormat == MESA_FORMAT_BGR888);
- ASSERT(_mesa_get_format_bytes(dstFormat) == 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,
- dstRowStride, dstSlices,
- 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 = dstSlices[img];
- 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,
- dstRowStride, dstSlices,
- srcWidth, srcHeight, srcDepth, srcAddr,
- srcPacking);
- }
- else {
- /* general path */
- const GLubyte *tempImage = _mesa_make_temp_ubyte_image(ctx, dims,
- baseInternalFormat,
- baseFormat,
- srcWidth, srcHeight, srcDepth,
- srcFormat, srcType, srcAddr,
- srcPacking);
- const GLubyte *src = (const GLubyte *) tempImage;
- GLint img, row, col;
- if (!tempImage)
- return GL_FALSE;
- for (img = 0; img < srcDepth; img++) {
- GLubyte *dstRow = dstSlices[img];
- for (row = 0; row < srcHeight; row++) {
- for (col = 0; col < srcWidth; col++) {
- dstRow[col * 3 + 0] = src[RCOMP];
- dstRow[col * 3 + 1] = src[GCOMP];
- dstRow[col * 3 + 2] = src[BCOMP];
- src += 3;
- }
- dstRow += dstRowStride;
- }
- }
- free((void *) tempImage);
- }
- return GL_TRUE;
-}
-
-
-static GLboolean
-_mesa_texstore_argb4444(TEXSTORE_PARAMS)
-{
- const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
-
- ASSERT(dstFormat == MESA_FORMAT_ARGB4444 ||
- dstFormat == MESA_FORMAT_ARGB4444_REV);
- ASSERT(_mesa_get_format_bytes(dstFormat) == 2);
-
- if (!ctx->_ImageTransferState &&
- !srcPacking->SwapBytes &&
- dstFormat == MESA_FORMAT_ARGB4444 &&
- baseInternalFormat == GL_RGBA &&
- srcFormat == GL_BGRA &&
- srcType == GL_UNSIGNED_SHORT_4_4_4_4_REV) {
- /* simple memcpy path */
- memcpy_texture(ctx, dims,
- dstFormat,
- dstRowStride, dstSlices,
- srcWidth, srcHeight, srcDepth, srcFormat, srcType,
- srcAddr, srcPacking);
- }
- else {
- /* general path */
- const GLubyte *tempImage = _mesa_make_temp_ubyte_image(ctx, dims,
- baseInternalFormat,
- baseFormat,
- srcWidth, srcHeight, srcDepth,
- srcFormat, srcType, srcAddr,
- srcPacking);
- const GLubyte *src = tempImage;
- GLint img, row, col;
- if (!tempImage)
- return GL_FALSE;
- for (img = 0; img < srcDepth; img++) {
- GLubyte *dstRow = dstSlices[img];
- for (row = 0; row < srcHeight; row++) {
- GLushort *dstUS = (GLushort *) dstRow;
- if (dstFormat == MESA_FORMAT_ARGB4444) {
- for (col = 0; col < srcWidth; col++) {
- dstUS[col] = PACK_COLOR_4444( src[ACOMP],
- src[RCOMP],
- src[GCOMP],
- src[BCOMP] );
- src += 4;
- }
- }
- else {
- for (col = 0; col < srcWidth; col++) {
- dstUS[col] = PACK_COLOR_4444_REV( src[ACOMP],
- src[RCOMP],
- src[GCOMP],
- src[BCOMP] );
- src += 4;
- }
- }
- dstRow += dstRowStride;
- }
- }
- free((void *) tempImage);
- }
- return GL_TRUE;
-}
-
-static GLboolean
-_mesa_texstore_rgba5551(TEXSTORE_PARAMS)
-{
- const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
-
- ASSERT(dstFormat == MESA_FORMAT_RGBA5551);
- ASSERT(_mesa_get_format_bytes(dstFormat) == 2);
-
- if (!ctx->_ImageTransferState &&
- !srcPacking->SwapBytes &&
- dstFormat == MESA_FORMAT_RGBA5551 &&
- baseInternalFormat == GL_RGBA &&
- srcFormat == GL_RGBA &&
- srcType == GL_UNSIGNED_SHORT_5_5_5_1) {
- /* simple memcpy path */
- memcpy_texture(ctx, dims,
- dstFormat,
- dstRowStride, dstSlices,
- srcWidth, srcHeight, srcDepth, srcFormat, srcType,
- srcAddr, srcPacking);
- }
- else {
- /* general path */
- const GLubyte *tempImage = _mesa_make_temp_ubyte_image(ctx, dims,
- baseInternalFormat,
- baseFormat,
- srcWidth, srcHeight, srcDepth,
- srcFormat, srcType, srcAddr,
- srcPacking);
- const GLubyte *src =tempImage;
- GLint img, row, col;
- if (!tempImage)
- return GL_FALSE;
- for (img = 0; img < srcDepth; img++) {
- GLubyte *dstRow = dstSlices[img];
- for (row = 0; row < srcHeight; row++) {
- GLushort *dstUS = (GLushort *) dstRow;
- for (col = 0; col < srcWidth; col++) {
- dstUS[col] = PACK_COLOR_5551( src[RCOMP],
- src[GCOMP],
- src[BCOMP],
- src[ACOMP] );
- src += 4;
- }
- dstRow += dstRowStride;
- }
- }
- free((void *) tempImage);
- }
- return GL_TRUE;
-}
-
-static GLboolean
-_mesa_texstore_argb1555(TEXSTORE_PARAMS)
-{
- const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
-
- ASSERT(dstFormat == MESA_FORMAT_ARGB1555 ||
- dstFormat == MESA_FORMAT_ARGB1555_REV);
- ASSERT(_mesa_get_format_bytes(dstFormat) == 2);
-
- if (!ctx->_ImageTransferState &&
- !srcPacking->SwapBytes &&
- dstFormat == MESA_FORMAT_ARGB1555 &&
- baseInternalFormat == GL_RGBA &&
- srcFormat == GL_BGRA &&
- srcType == GL_UNSIGNED_SHORT_1_5_5_5_REV) {
- /* simple memcpy path */
- memcpy_texture(ctx, dims,
- dstFormat,
- dstRowStride, dstSlices,
- srcWidth, srcHeight, srcDepth, srcFormat, srcType,
- srcAddr, srcPacking);
- }
- else {
- /* general path */
- const GLubyte *tempImage = _mesa_make_temp_ubyte_image(ctx, dims,
- baseInternalFormat,
- baseFormat,
- srcWidth, srcHeight, srcDepth,
- srcFormat, srcType, srcAddr,
- srcPacking);
- const GLubyte *src =tempImage;
- GLint img, row, col;
- if (!tempImage)
- return GL_FALSE;
- for (img = 0; img < srcDepth; img++) {
- GLubyte *dstRow = dstSlices[img];
- for (row = 0; row < srcHeight; row++) {
- GLushort *dstUS = (GLushort *) dstRow;
- if (dstFormat == MESA_FORMAT_ARGB1555) {
- for (col = 0; col < srcWidth; col++) {
- dstUS[col] = PACK_COLOR_1555( src[ACOMP],
- src[RCOMP],
- src[GCOMP],
- src[BCOMP] );
- src += 4;
- }
- }
- else {
- for (col = 0; col < srcWidth; col++) {
- dstUS[col] = PACK_COLOR_1555_REV( src[ACOMP],
- src[RCOMP],
- src[GCOMP],
- src[BCOMP] );
- src += 4;
- }
- }
- dstRow += dstRowStride;
- }
- }
- free((void *) tempImage);
- }
- return GL_TRUE;
-}
-
-/**
- * Do texstore for 2-channel, 4-bit/channel, unsigned normalized formats.
- */
-static GLboolean
-_mesa_texstore_unorm44(TEXSTORE_PARAMS)
-{
- const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
-
- ASSERT(dstFormat == MESA_FORMAT_AL44);
- ASSERT(_mesa_get_format_bytes(dstFormat) == 1);
-
- {
- /* general path */
- const GLubyte *tempImage = _mesa_make_temp_ubyte_image(ctx, dims,
- baseInternalFormat,
- baseFormat,
- srcWidth, srcHeight, srcDepth,
- srcFormat, srcType, srcAddr,
- srcPacking);
- const GLubyte *src = tempImage;
- GLint img, row, col;
- if (!tempImage)
- return GL_FALSE;
- for (img = 0; img < srcDepth; img++) {
- GLubyte *dstRow = dstSlices[img];
- for (row = 0; row < srcHeight; row++) {
- GLubyte *dstUS = (GLubyte *) dstRow;
- for (col = 0; col < srcWidth; col++) {
- /* src[0] is luminance, src[1] is alpha */
- dstUS[col] = PACK_COLOR_44( src[1],
- src[0] );
- src += 2;
- }
- dstRow += dstRowStride;
- }
- }
- free((void *) tempImage);
- }
- return GL_TRUE;
-}
-
-
-/**
- * Do texstore for 2-channel, 8-bit/channel, unsigned normalized formats.
- */
-static GLboolean
-_mesa_texstore_unorm88(TEXSTORE_PARAMS)
-{
- const GLboolean littleEndian = _mesa_little_endian();
- const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
-
- ASSERT(dstFormat == MESA_FORMAT_AL88 ||
- dstFormat == MESA_FORMAT_AL88_REV);
- ASSERT(_mesa_get_format_bytes(dstFormat) == 2);
-
- if (!ctx->_ImageTransferState &&
- !srcPacking->SwapBytes &&
- (dstFormat == MESA_FORMAT_AL88 &&
- baseInternalFormat == GL_LUMINANCE_ALPHA &&
- srcFormat == GL_LUMINANCE_ALPHA) &&
- srcType == GL_UNSIGNED_BYTE &&
- littleEndian) {
- /* simple memcpy path */
- memcpy_texture(ctx, dims,
- dstFormat,
- dstRowStride, dstSlices,
- 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 (dstFormat == MESA_FORMAT_AL88 || dstFormat == MESA_FORMAT_AL88_REV) {
- if ((littleEndian && dstFormat == MESA_FORMAT_AL88) ||
- (!littleEndian && dstFormat == MESA_FORMAT_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,
- dstRowStride, dstSlices,
- srcWidth, srcHeight, srcDepth, srcAddr,
- srcPacking);
- }
- else {
- /* general path */
- const GLubyte *tempImage = _mesa_make_temp_ubyte_image(ctx, dims,
- baseInternalFormat,
- baseFormat,
- srcWidth, srcHeight, srcDepth,
- srcFormat, srcType, srcAddr,
- srcPacking);
- const GLubyte *src = tempImage;
- GLint img, row, col;
- if (!tempImage)
- return GL_FALSE;
- for (img = 0; img < srcDepth; img++) {
- GLubyte *dstRow = dstSlices[img];
- for (row = 0; row < srcHeight; row++) {
- GLushort *dstUS = (GLushort *) dstRow;
- if (dstFormat == MESA_FORMAT_AL88) {
- for (col = 0; col < srcWidth; col++) {
- /* src[0] is luminance (or R), src[1] is alpha (or G) */
- dstUS[col] = PACK_COLOR_88( src[1],
- src[0] );
- src += 2;
- }
- }
- else {
- for (col = 0; col < srcWidth; col++) {
- /* src[0] is luminance (or R), src[1] is alpha (or G) */
- dstUS[col] = PACK_COLOR_88_REV( src[1],
- src[0] );
- src += 2;
- }
- }
- dstRow += dstRowStride;
- }
- }
- free((void *) tempImage);
- }
- return GL_TRUE;
-}
-
-
-/**
- * Do texstore for 2-channel, 16-bit/channel, unsigned normalized formats.
- */
-static GLboolean
-_mesa_texstore_unorm1616(TEXSTORE_PARAMS)
-{
- const GLboolean littleEndian = _mesa_little_endian();
- const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
-
- ASSERT(dstFormat == MESA_FORMAT_AL1616 ||
- dstFormat == MESA_FORMAT_AL1616_REV ||
- dstFormat == MESA_FORMAT_RG1616 ||
- dstFormat == MESA_FORMAT_RG1616_REV);
- ASSERT(_mesa_get_format_bytes(dstFormat) == 4);
-
- if (!ctx->_ImageTransferState &&
- !srcPacking->SwapBytes &&
- (dstFormat == MESA_FORMAT_AL1616 &&
- baseInternalFormat == GL_LUMINANCE_ALPHA &&
- srcFormat == GL_LUMINANCE_ALPHA) &&
- srcType == GL_UNSIGNED_SHORT &&
- littleEndian) {
- /* simple memcpy path */
- memcpy_texture(ctx, dims,
- dstFormat,
- dstRowStride, dstSlices,
- srcWidth, srcHeight, srcDepth, srcFormat, srcType,
- srcAddr, srcPacking);
- }
- else {
- /* general path */
- const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
- baseInternalFormat,
- baseFormat,
- srcWidth, srcHeight, srcDepth,
- srcFormat, srcType, srcAddr,
- srcPacking,
- ctx->_ImageTransferState);
- const GLfloat *src = tempImage;
- GLint img, row, col;
- if (!tempImage)
- return GL_FALSE;
- for (img = 0; img < srcDepth; img++) {
- GLubyte *dstRow = dstSlices[img];
- for (row = 0; row < srcHeight; row++) {
- GLuint *dstUI = (GLuint *) dstRow;
- if (dstFormat == MESA_FORMAT_AL1616) {
- for (col = 0; col < srcWidth; col++) {
- GLushort l, a;
-
- UNCLAMPED_FLOAT_TO_USHORT(l, src[0]);
- UNCLAMPED_FLOAT_TO_USHORT(a, src[1]);
- dstUI[col] = PACK_COLOR_1616(a, l);
- src += 2;
- }
- }
- else {
- for (col = 0; col < srcWidth; col++) {
- GLushort l, a;
-
- UNCLAMPED_FLOAT_TO_USHORT(l, src[0]);
- UNCLAMPED_FLOAT_TO_USHORT(a, src[1]);
- dstUI[col] = PACK_COLOR_1616_REV(a, l);
- src += 2;
- }
- }
- dstRow += dstRowStride;
- }
- }
- free((void *) tempImage);
- }
- return GL_TRUE;
-}
-
-
-/* Texstore for R16, A16, L16, I16. */
-static GLboolean
-_mesa_texstore_unorm16(TEXSTORE_PARAMS)
-{
- const GLboolean littleEndian = _mesa_little_endian();
- const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
-
- ASSERT(dstFormat == MESA_FORMAT_R16 ||
- dstFormat == MESA_FORMAT_A16 ||
- dstFormat == MESA_FORMAT_L16 ||
- dstFormat == MESA_FORMAT_I16);
- ASSERT(_mesa_get_format_bytes(dstFormat) == 2);
-
- if (!ctx->_ImageTransferState &&
- !srcPacking->SwapBytes &&
- baseInternalFormat == srcFormat &&
- srcType == GL_UNSIGNED_SHORT &&
- littleEndian) {
- /* simple memcpy path */
- memcpy_texture(ctx, dims,
- dstFormat,
- dstRowStride, dstSlices,
- srcWidth, srcHeight, srcDepth, srcFormat, srcType,
- srcAddr, srcPacking);
- }
- else {
- /* general path */
- const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
- baseInternalFormat,
- baseFormat,
- srcWidth, srcHeight, srcDepth,
- srcFormat, srcType, srcAddr,
- srcPacking,
- ctx->_ImageTransferState);
- const GLfloat *src = tempImage;
- GLint img, row, col;
- if (!tempImage)
- return GL_FALSE;
- for (img = 0; img < srcDepth; img++) {
- GLubyte *dstRow = dstSlices[img];
- for (row = 0; row < srcHeight; row++) {
- GLushort *dstUS = (GLushort *) dstRow;
- for (col = 0; col < srcWidth; col++) {
- GLushort r;
-
- UNCLAMPED_FLOAT_TO_USHORT(r, src[0]);
- dstUS[col] = r;
- src += 1;
- }
- dstRow += dstRowStride;
- }
- }
- free((void *) tempImage);
- }
- return GL_TRUE;
-}
-
-
-static GLboolean
-_mesa_texstore_rgba_16(TEXSTORE_PARAMS)
-{
- const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
-
- ASSERT(dstFormat == MESA_FORMAT_RGBA_16);
- ASSERT(_mesa_get_format_bytes(dstFormat) == 8);
-
- if (!ctx->_ImageTransferState &&
- !srcPacking->SwapBytes &&
- baseInternalFormat == GL_RGBA &&
- srcFormat == GL_RGBA &&
- srcType == GL_UNSIGNED_SHORT) {
- /* simple memcpy path */
- memcpy_texture(ctx, dims,
- dstFormat,
- dstRowStride, dstSlices,
- srcWidth, srcHeight, srcDepth, srcFormat, srcType,
- srcAddr, srcPacking);
- }
- else {
- /* general path */
- const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
- baseInternalFormat,
- baseFormat,
- srcWidth, srcHeight, srcDepth,
- srcFormat, srcType, srcAddr,
- srcPacking,
- ctx->_ImageTransferState);
- const GLfloat *src = tempImage;
- GLint img, row, col;
- if (!tempImage)
- return GL_FALSE;
- for (img = 0; img < srcDepth; img++) {
- GLubyte *dstRow = dstSlices[img];
- for (row = 0; row < srcHeight; row++) {
- GLushort *dstUS = (GLushort *) dstRow;
- for (col = 0; col < srcWidth; col++) {
- GLushort r, g, b, a;
-
- UNCLAMPED_FLOAT_TO_USHORT(r, src[0]);
- UNCLAMPED_FLOAT_TO_USHORT(g, src[1]);
- UNCLAMPED_FLOAT_TO_USHORT(b, src[2]);
- UNCLAMPED_FLOAT_TO_USHORT(a, src[3]);
- dstUS[col*4+0] = r;
- dstUS[col*4+1] = g;
- dstUS[col*4+2] = b;
- dstUS[col*4+3] = a;
- src += 4;
- }
- dstRow += dstRowStride;
- }
- }
- free((void *) tempImage);
- }
- return GL_TRUE;
-}
-
-
-static GLboolean
-_mesa_texstore_signed_rgba_16(TEXSTORE_PARAMS)
-{
- const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
-
- ASSERT(dstFormat == MESA_FORMAT_SIGNED_RGB_16 ||
- dstFormat == MESA_FORMAT_SIGNED_RGBA_16);
-
- if (!ctx->_ImageTransferState &&
- !srcPacking->SwapBytes &&
- baseInternalFormat == GL_RGBA &&
- dstFormat == MESA_FORMAT_SIGNED_RGBA_16 &&
- srcFormat == GL_RGBA &&
- srcType == GL_SHORT) {
- /* simple memcpy path */
- memcpy_texture(ctx, dims,
- dstFormat,
- dstRowStride, dstSlices,
- srcWidth, srcHeight, srcDepth, srcFormat, srcType,
- srcAddr, srcPacking);
- }
- else {
- /* general path */
- const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
- baseInternalFormat,
- baseFormat,
- srcWidth, srcHeight, srcDepth,
- srcFormat, srcType, srcAddr,
- srcPacking,
- ctx->_ImageTransferState);
- const GLfloat *src = tempImage;
- const GLuint comps = _mesa_get_format_bytes(dstFormat) / 2;
- GLint img, row, col;
-
- if (!tempImage)
- return GL_FALSE;
-
- /* Note: tempImage is always float[4] / RGBA. We convert to 1, 2,
- * 3 or 4 components/pixel here.
- */
- for (img = 0; img < srcDepth; img++) {
- GLubyte *dstRow = dstSlices[img];
- for (row = 0; row < srcHeight; row++) {
- GLshort *dstRowS = (GLshort *) dstRow;
- if (dstFormat == MESA_FORMAT_SIGNED_RGBA_16) {
- for (col = 0; col < srcWidth; col++) {
- GLuint c;
- for (c = 0; c < comps; c++) {
- GLshort p;
- UNCLAMPED_FLOAT_TO_SHORT(p, src[col * 4 + c]);
- dstRowS[col * comps + c] = p;
- }
- }
- dstRow += dstRowStride;
- src += 4 * srcWidth;
- } else {
- for (col = 0; col < srcWidth; col++) {
- GLuint c;
- for (c = 0; c < comps; c++) {
- GLshort p;
- UNCLAMPED_FLOAT_TO_SHORT(p, src[col * 3 + c]);
- dstRowS[col * comps + c] = p;
- }
- }
- dstRow += dstRowStride;
- src += 3 * srcWidth;
- }
- }
- }
- free((void *) tempImage);
- }
- return GL_TRUE;
-}
-
-
-static GLboolean
-_mesa_texstore_rgb332(TEXSTORE_PARAMS)
-{
- const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
-
- ASSERT(dstFormat == MESA_FORMAT_RGB332);
- ASSERT(_mesa_get_format_bytes(dstFormat) == 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,
- dstRowStride, dstSlices,
- srcWidth, srcHeight, srcDepth, srcFormat, srcType,
- srcAddr, srcPacking);
- }
- else {
- /* general path */
- const GLubyte *tempImage = _mesa_make_temp_ubyte_image(ctx, dims,
- baseInternalFormat,
- baseFormat,
- srcWidth, srcHeight, srcDepth,
- srcFormat, srcType, srcAddr,
- srcPacking);
- const GLubyte *src = tempImage;
- GLint img, row, col;
- if (!tempImage)
- return GL_FALSE;
- for (img = 0; img < srcDepth; img++) {
- GLubyte *dstRow = dstSlices[img];
- for (row = 0; row < srcHeight; row++) {
- for (col = 0; col < srcWidth; col++) {
- dstRow[col] = PACK_COLOR_332( src[RCOMP],
- src[GCOMP],
- src[BCOMP] );
- src += 3;
- }
- dstRow += dstRowStride;
- }
- }
- free((void *) tempImage);
- }
- return GL_TRUE;
-}
-
-
-/**
- * Texstore for _mesa_texformat_a8, _mesa_texformat_l8, _mesa_texformat_i8.
- */
-static GLboolean
-_mesa_texstore_unorm8(TEXSTORE_PARAMS)
-{
- const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
-
- ASSERT(dstFormat == MESA_FORMAT_A8 ||
- dstFormat == MESA_FORMAT_L8 ||
- dstFormat == MESA_FORMAT_I8 ||
- dstFormat == MESA_FORMAT_R8);
- ASSERT(_mesa_get_format_bytes(dstFormat) == 1);
-
- if (!ctx->_ImageTransferState &&
- !srcPacking->SwapBytes &&
- baseInternalFormat == srcFormat &&
- srcType == GL_UNSIGNED_BYTE) {
- /* simple memcpy path */
- memcpy_texture(ctx, dims,
- dstFormat,
- dstRowStride, dstSlices,
- 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_FORMAT_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,
- dstRowStride, dstSlices,
- srcWidth, srcHeight, srcDepth, srcAddr,
- srcPacking);
- }
- else {
- /* general path */
- const GLubyte *tempImage = _mesa_make_temp_ubyte_image(ctx, dims,
- baseInternalFormat,
- baseFormat,
- srcWidth, srcHeight, srcDepth,
- srcFormat, srcType, srcAddr,
- srcPacking);
- const GLubyte *src = tempImage;
- GLint img, row, col;
- if (!tempImage)
- return GL_FALSE;
- for (img = 0; img < srcDepth; img++) {
- GLubyte *dstRow = dstSlices[img];
- for (row = 0; row < srcHeight; row++) {
- for (col = 0; col < srcWidth; col++) {
- dstRow[col] = src[col];
- }
- dstRow += dstRowStride;
- src += srcWidth;
- }
- }
- free((void *) tempImage);
- }
- return GL_TRUE;
-}
-
-
-
-/**
- * Texstore for _mesa_texformat_ycbcr or _mesa_texformat_ycbcr_REV.
- */
-static GLboolean
-_mesa_texstore_ycbcr(TEXSTORE_PARAMS)
-{
- const GLboolean littleEndian = _mesa_little_endian();
-
- (void) ctx; (void) dims; (void) baseInternalFormat;
-
- ASSERT((dstFormat == MESA_FORMAT_YCBCR) ||
- (dstFormat == MESA_FORMAT_YCBCR_REV));
- ASSERT(_mesa_get_format_bytes(dstFormat) == 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,
- dstRowStride, dstSlices,
- 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_FORMAT_YCBCR_REV) ^
- !littleEndian) {
- GLint img, row;
- for (img = 0; img < srcDepth; img++) {
- GLubyte *dstRow = dstSlices[img];
- for (row = 0; row < srcHeight; row++) {
- _mesa_swap2((GLushort *) dstRow, srcWidth);
- dstRow += dstRowStride;
- }
- }
- }
- return GL_TRUE;
-}
-
-/**
- * Store simple 8-bit/value stencil texture data.
- */
-static GLboolean
-_mesa_texstore_s8(TEXSTORE_PARAMS)
-{
- ASSERT(dstFormat == MESA_FORMAT_S8);
- ASSERT(srcFormat == GL_STENCIL_INDEX);
-
- if (!ctx->_ImageTransferState &&
- !srcPacking->SwapBytes &&
- baseInternalFormat == srcFormat &&
- srcType == GL_UNSIGNED_BYTE) {
- /* simple memcpy path */
- memcpy_texture(ctx, dims,
- dstFormat,
- dstRowStride, dstSlices,
- srcWidth, srcHeight, srcDepth, srcFormat, srcType,
- srcAddr, srcPacking);
- }
- else {
- const GLint srcRowStride
- = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
- GLint img, row;
-
- for (img = 0; img < srcDepth; img++) {
- GLubyte *dstRow = dstSlices[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++) {
- GLubyte stencil[MAX_WIDTH];
- GLint i;
-
- /* 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(GLubyte);
- }
- }
-
- }
-
- return GL_TRUE;
-}
-
-
-/* non-normalized, signed int8 */
-static GLboolean
-_mesa_texstore_rgba_int8(TEXSTORE_PARAMS)
-{
- const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
- const GLint components = _mesa_components_in_format(baseFormat);
-
- ASSERT(dstFormat == MESA_FORMAT_R_INT8 ||
- dstFormat == MESA_FORMAT_RG_INT8 ||
- dstFormat == MESA_FORMAT_RGB_INT8 ||
- dstFormat == MESA_FORMAT_RGBA_INT8 ||
- dstFormat == MESA_FORMAT_ALPHA_INT8 ||
- dstFormat == MESA_FORMAT_INTENSITY_INT8 ||
- dstFormat == MESA_FORMAT_LUMINANCE_INT8 ||
- dstFormat == MESA_FORMAT_LUMINANCE_ALPHA_INT8);
- ASSERT(baseInternalFormat == GL_RGBA ||
- baseInternalFormat == GL_RGB ||
- baseInternalFormat == GL_RG ||
- baseInternalFormat == GL_RED ||
- baseInternalFormat == GL_ALPHA ||
- baseInternalFormat == GL_LUMINANCE ||
- baseInternalFormat == GL_LUMINANCE_ALPHA ||
- baseInternalFormat == GL_INTENSITY);
- ASSERT(_mesa_get_format_bytes(dstFormat) == components * sizeof(GLbyte));
-
- /* Note: Pixel transfer ops (scale, bias, table lookup) do not apply
- * to integer formats.
- */
- if (!srcPacking->SwapBytes &&
- baseInternalFormat == srcFormat &&
- srcType == GL_BYTE) {
- /* simple memcpy path */
- memcpy_texture(ctx, dims,
- dstFormat,
- dstRowStride, dstSlices,
- srcWidth, srcHeight, srcDepth, srcFormat, srcType,
- srcAddr, srcPacking);
- }
- else {
- /* general path */
- const GLuint *tempImage = make_temp_uint_image(ctx, dims,
- baseInternalFormat,
- baseFormat,
- srcWidth, srcHeight, srcDepth,
- srcFormat, srcType,
- srcAddr,
- srcPacking);
- const GLuint *src = tempImage;
- GLint img, row;
- if (!tempImage)
- return GL_FALSE;
- for (img = 0; img < srcDepth; img++) {
- GLubyte *dstRow = dstSlices[img];
- for (row = 0; row < srcHeight; row++) {
- GLbyte *dstTexel = (GLbyte *) dstRow;
- GLint i;
- for (i = 0; i < srcWidth * components; i++) {
- dstTexel[i] = (GLbyte) src[i];
- }
- dstRow += dstRowStride;
- src += srcWidth * components;
- }
- }
-
- free((void *) tempImage);
- }
- return GL_TRUE;
-}
-
-
-/* non-normalized, signed int16 */
-static GLboolean
-_mesa_texstore_rgba_int16(TEXSTORE_PARAMS)
-{
- const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
- const GLint components = _mesa_components_in_format(baseFormat);
-
- ASSERT(dstFormat == MESA_FORMAT_R_INT16 ||
- dstFormat == MESA_FORMAT_RG_INT16 ||
- dstFormat == MESA_FORMAT_RGB_INT16 ||
- dstFormat == MESA_FORMAT_RGBA_INT16 ||
- dstFormat == MESA_FORMAT_ALPHA_INT16 ||
- dstFormat == MESA_FORMAT_LUMINANCE_INT16 ||
- dstFormat == MESA_FORMAT_INTENSITY_INT16 ||
- dstFormat == MESA_FORMAT_LUMINANCE_ALPHA_INT16);
- ASSERT(baseInternalFormat == GL_RGBA ||
- baseInternalFormat == GL_RGB ||
- baseInternalFormat == GL_RG ||
- baseInternalFormat == GL_RED ||
- baseInternalFormat == GL_ALPHA ||
- baseInternalFormat == GL_LUMINANCE ||
- baseInternalFormat == GL_LUMINANCE_ALPHA ||
- baseInternalFormat == GL_INTENSITY);
- ASSERT(_mesa_get_format_bytes(dstFormat) == components * sizeof(GLshort));
-
- /* Note: Pixel transfer ops (scale, bias, table lookup) do not apply
- * to integer formats.
- */
- if (!srcPacking->SwapBytes &&
- baseInternalFormat == srcFormat &&
- srcType == GL_SHORT) {
- /* simple memcpy path */
- memcpy_texture(ctx, dims,
- dstFormat,
- dstRowStride, dstSlices,
- srcWidth, srcHeight, srcDepth, srcFormat, srcType,
- srcAddr, srcPacking);
- }
- else {
- /* general path */
- const GLuint *tempImage = make_temp_uint_image(ctx, dims,
- baseInternalFormat,
- baseFormat,
- srcWidth, srcHeight, srcDepth,
- srcFormat, srcType,
- srcAddr,
- srcPacking);
- const GLuint *src = tempImage;
- GLint img, row;
- if (!tempImage)
- return GL_FALSE;
- for (img = 0; img < srcDepth; img++) {
- GLubyte *dstRow = dstSlices[img];
- for (row = 0; row < srcHeight; row++) {
- GLshort *dstTexel = (GLshort *) dstRow;
- GLint i;
- for (i = 0; i < srcWidth * components; i++) {
- dstTexel[i] = (GLint) src[i];
- }
- dstRow += dstRowStride;
- src += srcWidth * components;
- }
- }
-
- free((void *) tempImage);
- }
- return GL_TRUE;
-}
-
-
-/* non-normalized, signed int32 */
-static GLboolean
-_mesa_texstore_rgba_int32(TEXSTORE_PARAMS)
-{
- const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
- const GLint components = _mesa_components_in_format(baseFormat);
-
- ASSERT(dstFormat == MESA_FORMAT_R_INT32 ||
- dstFormat == MESA_FORMAT_RG_INT32 ||
- dstFormat == MESA_FORMAT_RGB_INT32 ||
- dstFormat == MESA_FORMAT_RGBA_INT32 ||
- dstFormat == MESA_FORMAT_ALPHA_INT32 ||
- dstFormat == MESA_FORMAT_INTENSITY_INT32 ||
- dstFormat == MESA_FORMAT_LUMINANCE_INT32 ||
- dstFormat == MESA_FORMAT_LUMINANCE_ALPHA_INT32);
- ASSERT(baseInternalFormat == GL_RGBA ||
- baseInternalFormat == GL_RGB ||
- baseInternalFormat == GL_RG ||
- baseInternalFormat == GL_RED ||
- baseInternalFormat == GL_ALPHA ||
- baseInternalFormat == GL_LUMINANCE ||
- baseInternalFormat == GL_LUMINANCE_ALPHA ||
- baseInternalFormat == GL_INTENSITY);
- ASSERT(_mesa_get_format_bytes(dstFormat) == components * sizeof(GLint));
-
- /* Note: Pixel transfer ops (scale, bias, table lookup) do not apply
- * to integer formats.
- */
- if (!srcPacking->SwapBytes &&
- baseInternalFormat == srcFormat &&
- srcType == GL_INT) {
- /* simple memcpy path */
- memcpy_texture(ctx, dims,
- dstFormat,
- dstRowStride, dstSlices,
- srcWidth, srcHeight, srcDepth, srcFormat, srcType,
- srcAddr, srcPacking);
- }
- else {
- /* general path */
- const GLuint *tempImage = make_temp_uint_image(ctx, dims,
- baseInternalFormat,
- baseFormat,
- srcWidth, srcHeight, srcDepth,
- srcFormat, srcType,
- srcAddr,
- srcPacking);
- const GLuint *src = tempImage;
- GLint img, row;
- if (!tempImage)
- return GL_FALSE;
- for (img = 0; img < srcDepth; img++) {
- GLubyte *dstRow = dstSlices[img];
- for (row = 0; row < srcHeight; row++) {
- GLint *dstTexel = (GLint *) dstRow;
- GLint i;
- for (i = 0; i < srcWidth * components; i++) {
- dstTexel[i] = (GLint) src[i];
- }
- dstRow += dstRowStride;
- src += srcWidth * components;
- }
- }
-
- free((void *) tempImage);
- }
- return GL_TRUE;
-}
-
-
-/* non-normalized, unsigned int8 */
-static GLboolean
-_mesa_texstore_rgba_uint8(TEXSTORE_PARAMS)
-{
- const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
- const GLint components = _mesa_components_in_format(baseFormat);
-
- ASSERT(dstFormat == MESA_FORMAT_R_UINT8 ||
- dstFormat == MESA_FORMAT_RG_UINT8 ||
- dstFormat == MESA_FORMAT_RGB_UINT8 ||
- dstFormat == MESA_FORMAT_RGBA_UINT8 ||
- dstFormat == MESA_FORMAT_ALPHA_UINT8 ||
- dstFormat == MESA_FORMAT_INTENSITY_UINT8 ||
- dstFormat == MESA_FORMAT_LUMINANCE_UINT8 ||
- dstFormat == MESA_FORMAT_LUMINANCE_ALPHA_UINT8);
- ASSERT(baseInternalFormat == GL_RGBA ||
- baseInternalFormat == GL_RGB ||
- baseInternalFormat == GL_RG ||
- baseInternalFormat == GL_RED ||
- baseInternalFormat == GL_ALPHA ||
- baseInternalFormat == GL_LUMINANCE ||
- baseInternalFormat == GL_LUMINANCE_ALPHA ||
- baseInternalFormat == GL_INTENSITY);
- ASSERT(_mesa_get_format_bytes(dstFormat) == components * sizeof(GLubyte));
-
- /* Note: Pixel transfer ops (scale, bias, table lookup) do not apply
- * to integer formats.
- */
- if (!srcPacking->SwapBytes &&
- baseInternalFormat == srcFormat &&
- srcType == GL_UNSIGNED_BYTE) {
- /* simple memcpy path */
- memcpy_texture(ctx, dims,
- dstFormat,
- dstRowStride, dstSlices,
- srcWidth, srcHeight, srcDepth, srcFormat, srcType,
- srcAddr, srcPacking);
- }
- else {
- /* general path */
- const GLuint *tempImage =
- make_temp_uint_image(ctx, dims, baseInternalFormat, baseFormat,
- srcWidth, srcHeight, srcDepth,
- srcFormat, srcType, srcAddr, srcPacking);
- const GLuint *src = tempImage;
- GLint img, row;
- if (!tempImage)
- return GL_FALSE;
- for (img = 0; img < srcDepth; img++) {
- GLubyte *dstRow = dstSlices[img];
- for (row = 0; row < srcHeight; row++) {
- GLubyte *dstTexel = (GLubyte *) dstRow;
- GLint i;
- for (i = 0; i < srcWidth * components; i++) {
- dstTexel[i] = (GLubyte) CLAMP(src[i], 0, 0xff);
- }
- dstRow += dstRowStride;
- src += srcWidth * components;
- }
- }
-
- free((void *) tempImage);
- }
- return GL_TRUE;
-}
-
-
-/* non-normalized, unsigned int16 */
-static GLboolean
-_mesa_texstore_rgba_uint16(TEXSTORE_PARAMS)
-{
- const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
- const GLint components = _mesa_components_in_format(baseFormat);
-
- ASSERT(dstFormat == MESA_FORMAT_R_UINT16 ||
- dstFormat == MESA_FORMAT_RG_UINT16 ||
- dstFormat == MESA_FORMAT_RGB_UINT16 ||
- dstFormat == MESA_FORMAT_RGBA_UINT16 ||
- dstFormat == MESA_FORMAT_ALPHA_UINT16 ||
- dstFormat == MESA_FORMAT_INTENSITY_UINT16 ||
- dstFormat == MESA_FORMAT_LUMINANCE_UINT16 ||
- dstFormat == MESA_FORMAT_LUMINANCE_ALPHA_UINT16);
- ASSERT(baseInternalFormat == GL_RGBA ||
- baseInternalFormat == GL_RGB ||
- baseInternalFormat == GL_RG ||
- baseInternalFormat == GL_RED ||
- baseInternalFormat == GL_ALPHA ||
- baseInternalFormat == GL_LUMINANCE ||
- baseInternalFormat == GL_LUMINANCE_ALPHA ||
- baseInternalFormat == GL_INTENSITY);
- ASSERT(_mesa_get_format_bytes(dstFormat) == components * sizeof(GLushort));
-
- /* Note: Pixel transfer ops (scale, bias, table lookup) do not apply
- * to integer formats.
- */
- if (!srcPacking->SwapBytes &&
- baseInternalFormat == srcFormat &&
- srcType == GL_UNSIGNED_SHORT) {
- /* simple memcpy path */
- memcpy_texture(ctx, dims,
- dstFormat,
- dstRowStride, dstSlices,
- srcWidth, srcHeight, srcDepth, srcFormat, srcType,
- srcAddr, srcPacking);
- }
- else {
- /* general path */
- const GLuint *tempImage =
- make_temp_uint_image(ctx, dims, baseInternalFormat, baseFormat,
- srcWidth, srcHeight, srcDepth,
- srcFormat, srcType, srcAddr, srcPacking);
- const GLuint *src = tempImage;
- GLint img, row;
- if (!tempImage)
- return GL_FALSE;
- for (img = 0; img < srcDepth; img++) {
- GLubyte *dstRow = dstSlices[img];
- for (row = 0; row < srcHeight; row++) {
- GLushort *dstTexel = (GLushort *) dstRow;
- GLint i;
- for (i = 0; i < srcWidth * components; i++) {
- dstTexel[i] = (GLushort) CLAMP(src[i], 0, 0xffff);
- }
- dstRow += dstRowStride;
- src += srcWidth * components;
- }
- }
-
- free((void *) tempImage);
- }
- return GL_TRUE;
-}
-
-
-/* non-normalized, unsigned int32 */
-static GLboolean
-_mesa_texstore_rgba_uint32(TEXSTORE_PARAMS)
-{
- const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
- const GLint components = _mesa_components_in_format(baseFormat);
-
- ASSERT(dstFormat == MESA_FORMAT_R_UINT32 ||
- dstFormat == MESA_FORMAT_RG_UINT32 ||
- dstFormat == MESA_FORMAT_RGB_UINT32 ||
- dstFormat == MESA_FORMAT_RGBA_UINT32 ||
- dstFormat == MESA_FORMAT_ALPHA_UINT32 ||
- dstFormat == MESA_FORMAT_INTENSITY_UINT32 ||
- dstFormat == MESA_FORMAT_LUMINANCE_UINT32 ||
- dstFormat == MESA_FORMAT_LUMINANCE_ALPHA_UINT32);
- ASSERT(baseInternalFormat == GL_RGBA ||
- baseInternalFormat == GL_RGB ||
- baseInternalFormat == GL_RG ||
- baseInternalFormat == GL_RED ||
- baseInternalFormat == GL_ALPHA ||
- baseInternalFormat == GL_LUMINANCE ||
- baseInternalFormat == GL_LUMINANCE_ALPHA ||
- baseInternalFormat == GL_INTENSITY);
- ASSERT(_mesa_get_format_bytes(dstFormat) == components * sizeof(GLuint));
-
- /* Note: Pixel transfer ops (scale, bias, table lookup) do not apply
- * to integer formats.
- */
- if (!srcPacking->SwapBytes &&
- baseInternalFormat == srcFormat &&
- srcType == GL_UNSIGNED_INT) {
- /* simple memcpy path */
- memcpy_texture(ctx, dims,
- dstFormat,
- dstRowStride, dstSlices,
- srcWidth, srcHeight, srcDepth, srcFormat, srcType,
- srcAddr, srcPacking);
- }
- else {
- /* general path */
- const GLuint *tempImage =
- make_temp_uint_image(ctx, dims, baseInternalFormat, baseFormat,
- srcWidth, srcHeight, srcDepth,
- srcFormat, srcType, srcAddr, srcPacking);
- const GLuint *src = tempImage;
- GLint img, row;
- if (!tempImage)
- return GL_FALSE;
- for (img = 0; img < srcDepth; img++) {
- GLubyte *dstRow = dstSlices[img];
- for (row = 0; row < srcHeight; row++) {
- GLuint *dstTexel = (GLuint *) dstRow;
- GLint i;
- for (i = 0; i < srcWidth * components; i++) {
- dstTexel[i] = src[i];
- }
- dstRow += dstRowStride;
- src += srcWidth * components;
- }
- }
-
- free((void *) tempImage);
- }
- return GL_TRUE;
-}
-
-static GLboolean
-_mesa_texstore_null(TEXSTORE_PARAMS)
-{
- (void) ctx; (void) dims;
- (void) baseInternalFormat;
- (void) dstFormat;
- (void) dstRowStride; (void) dstSlices,
- (void) srcWidth; (void) srcHeight; (void) srcDepth;
- (void) srcFormat; (void) srcType;
- (void) srcAddr;
- (void) srcPacking;
-
- /* should never happen */
- _mesa_problem(NULL, "_mesa_texstore_null() is called");
- return GL_FALSE;
-}
-
-
-/**
- * Return the StoreTexImageFunc pointer to store an image in the given format.
- */
-static StoreTexImageFunc
-_mesa_get_texstore_func(gl_format format)
-{
- static StoreTexImageFunc table[MESA_FORMAT_COUNT];
- static GLboolean initialized = GL_FALSE;
-
- if (!initialized) {
- table[MESA_FORMAT_NONE] = _mesa_texstore_null;
-
- table[MESA_FORMAT_RGBA8888] = _mesa_texstore_rgba8888;
- table[MESA_FORMAT_RGBA8888_REV] = _mesa_texstore_rgba8888;
- table[MESA_FORMAT_ARGB8888] = _mesa_texstore_argb8888;
- table[MESA_FORMAT_ARGB8888_REV] = _mesa_texstore_argb8888;
- table[MESA_FORMAT_RGBX8888] = _mesa_texstore_rgba8888;
- table[MESA_FORMAT_RGBX8888_REV] = _mesa_texstore_rgba8888;
- table[MESA_FORMAT_XRGB8888] = _mesa_texstore_argb8888;
- table[MESA_FORMAT_XRGB8888_REV] = _mesa_texstore_argb8888;
- table[MESA_FORMAT_RGB888] = _mesa_texstore_rgb888;
- table[MESA_FORMAT_BGR888] = _mesa_texstore_bgr888;
- table[MESA_FORMAT_RGB565] = _mesa_texstore_rgb565;
- table[MESA_FORMAT_RGB565_REV] = _mesa_texstore_rgb565;
- table[MESA_FORMAT_ARGB4444] = _mesa_texstore_argb4444;
- table[MESA_FORMAT_ARGB4444_REV] = _mesa_texstore_argb4444;
- table[MESA_FORMAT_RGBA5551] = _mesa_texstore_rgba5551;
- table[MESA_FORMAT_ARGB1555] = _mesa_texstore_argb1555;
- table[MESA_FORMAT_ARGB1555_REV] = _mesa_texstore_argb1555;
- table[MESA_FORMAT_AL44] = _mesa_texstore_unorm44;
- table[MESA_FORMAT_AL88] = _mesa_texstore_unorm88;
- table[MESA_FORMAT_AL88_REV] = _mesa_texstore_unorm88;
- table[MESA_FORMAT_AL1616] = _mesa_texstore_unorm1616;
- table[MESA_FORMAT_AL1616_REV] = _mesa_texstore_unorm1616;
- table[MESA_FORMAT_RGB332] = _mesa_texstore_rgb332;
- table[MESA_FORMAT_A8] = _mesa_texstore_unorm8;
- table[MESA_FORMAT_A16] = _mesa_texstore_unorm16;
- table[MESA_FORMAT_L8] = _mesa_texstore_unorm8;
- table[MESA_FORMAT_L16] = _mesa_texstore_unorm16;
- table[MESA_FORMAT_I8] = _mesa_texstore_unorm8;
- table[MESA_FORMAT_I16] = _mesa_texstore_unorm16;
- table[MESA_FORMAT_YCBCR] = _mesa_texstore_ycbcr;
- table[MESA_FORMAT_YCBCR_REV] = _mesa_texstore_ycbcr;
- table[MESA_FORMAT_Z16] = _mesa_texstore_z16;
- table[MESA_FORMAT_X8_Z24] = _mesa_texstore_x8_z24;
- table[MESA_FORMAT_Z24_X8] = _mesa_texstore_z24_x8;
- table[MESA_FORMAT_Z32] = _mesa_texstore_z32;
- table[MESA_FORMAT_S8] = _mesa_texstore_s8;
- table[MESA_FORMAT_SIGNED_RGBA_16] = _mesa_texstore_signed_rgba_16;
- table[MESA_FORMAT_RGBA_16] = _mesa_texstore_rgba_16;
-
- table[MESA_FORMAT_ALPHA_UINT8] = _mesa_texstore_rgba_uint8;
- table[MESA_FORMAT_ALPHA_UINT16] = _mesa_texstore_rgba_uint16;
- table[MESA_FORMAT_ALPHA_UINT32] = _mesa_texstore_rgba_uint32;
- table[MESA_FORMAT_ALPHA_INT8] = _mesa_texstore_rgba_int8;
- table[MESA_FORMAT_ALPHA_INT16] = _mesa_texstore_rgba_int16;
- table[MESA_FORMAT_ALPHA_INT32] = _mesa_texstore_rgba_int32;
-
- table[MESA_FORMAT_INTENSITY_UINT8] = _mesa_texstore_rgba_uint8;
- table[MESA_FORMAT_INTENSITY_UINT16] = _mesa_texstore_rgba_uint16;
- table[MESA_FORMAT_INTENSITY_UINT32] = _mesa_texstore_rgba_uint32;
- table[MESA_FORMAT_INTENSITY_INT8] = _mesa_texstore_rgba_int8;
- table[MESA_FORMAT_INTENSITY_INT16] = _mesa_texstore_rgba_int16;
- table[MESA_FORMAT_INTENSITY_INT32] = _mesa_texstore_rgba_int32;
-
- table[MESA_FORMAT_LUMINANCE_UINT8] = _mesa_texstore_rgba_uint8;
- table[MESA_FORMAT_LUMINANCE_UINT16] = _mesa_texstore_rgba_uint16;
- table[MESA_FORMAT_LUMINANCE_UINT32] = _mesa_texstore_rgba_uint32;
- table[MESA_FORMAT_LUMINANCE_INT8] = _mesa_texstore_rgba_int8;
- table[MESA_FORMAT_LUMINANCE_INT16] = _mesa_texstore_rgba_int16;
- table[MESA_FORMAT_LUMINANCE_INT32] = _mesa_texstore_rgba_int32;
-
- table[MESA_FORMAT_LUMINANCE_ALPHA_UINT8] = _mesa_texstore_rgba_uint8;
- table[MESA_FORMAT_LUMINANCE_ALPHA_UINT16] = _mesa_texstore_rgba_uint16;
- table[MESA_FORMAT_LUMINANCE_ALPHA_UINT32] = _mesa_texstore_rgba_uint32;
- table[MESA_FORMAT_LUMINANCE_ALPHA_INT8] = _mesa_texstore_rgba_int8;
- table[MESA_FORMAT_LUMINANCE_ALPHA_INT16] = _mesa_texstore_rgba_int16;
- table[MESA_FORMAT_LUMINANCE_ALPHA_INT32] = _mesa_texstore_rgba_int32;
-
- table[MESA_FORMAT_RGB_INT8] = _mesa_texstore_rgba_int8;
- table[MESA_FORMAT_RGBA_INT8] = _mesa_texstore_rgba_int8;
- table[MESA_FORMAT_RGB_INT16] = _mesa_texstore_rgba_int16;
- table[MESA_FORMAT_RGBA_INT16] = _mesa_texstore_rgba_int16;
- table[MESA_FORMAT_RGB_INT32] = _mesa_texstore_rgba_int32;
- table[MESA_FORMAT_RGBA_INT32] = _mesa_texstore_rgba_int32;
-
- table[MESA_FORMAT_RGB_UINT8] = _mesa_texstore_rgba_uint8;
- table[MESA_FORMAT_RGBA_UINT8] = _mesa_texstore_rgba_uint8;
- table[MESA_FORMAT_RGB_UINT16] = _mesa_texstore_rgba_uint16;
- table[MESA_FORMAT_RGBA_UINT16] = _mesa_texstore_rgba_uint16;
- table[MESA_FORMAT_RGB_UINT32] = _mesa_texstore_rgba_uint32;
- table[MESA_FORMAT_RGBA_UINT32] = _mesa_texstore_rgba_uint32;
-
- initialized = GL_TRUE;
- }
-
- ASSERT(table[format]);
- return table[format];
-}
-
-
-/**
- * Store user data into texture memory.
- * Called via glTex[Sub]Image1/2/3D()
- */
-GLboolean
-_mesa_texstore(TEXSTORE_PARAMS)
-{
- StoreTexImageFunc storeImage;
- GLboolean success;
-
- storeImage = _mesa_get_texstore_func(dstFormat);
-
- success = storeImage(ctx, dims, baseInternalFormat,
- dstFormat,
- dstRowStride, dstSlices,
- srcWidth, srcHeight, srcDepth,
- srcFormat, srcType, srcAddr, srcPacking);
- return success;
-}
-
-
-/**
- * Normally, we'll only _write_ texel data to a texture when we map it.
- * But if the user is providing depth or stencil values and the texture
- * image is a combined depth/stencil format, we'll actually read from
- * the texture buffer too (in order to insert the depth or stencil values.
- * \param userFormat the user-provided image format
- * \param texFormat the destination texture format
- */
-static GLbitfield
-get_read_write_mode(GLenum userFormat, gl_format texFormat)
-{
- return GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_RANGE_BIT;
-}
-
-
-/**
- * Helper function for storing 1D, 2D, 3D whole and subimages into texture
- * memory.
- * The source of the image data may be user memory or a PBO. In the later
- * case, we'll map the PBO, copy from it, then unmap it.
- */
-static void
-store_texsubimage(struct gl_context *ctx,
- struct gl_texture_image *texImage,
- GLint xoffset, GLint yoffset, GLint zoffset,
- GLint width, GLint height, GLint depth,
- GLenum format, GLenum type, const GLvoid *pixels,
- const struct gl_pixelstore_attrib *packing,
- const char *caller)
-
-{
- const GLbitfield mapMode = get_read_write_mode(format, texImage->TexFormat);
- const GLenum target = texImage->TexObject->Target;
- GLboolean success = GL_FALSE;
- GLuint dims, slice, numSlices = 1, sliceOffset = 0;
- GLint srcImageStride = 0;
- const GLubyte *src;
-
- assert(xoffset + width <= texImage->Width);
- assert(yoffset + height <= texImage->Height);
- assert(zoffset + depth <= texImage->Depth);
-
- switch (target) {
- case GL_TEXTURE_1D:
- dims = 1;
- break;
- default:
- dims = 2;
- }
-
- /* get pointer to src pixels (may be in a pbo which we'll map here) */
- src = (const GLubyte *)pixels;
- if (!src)
- return;
-
- /* compute slice info (and do some sanity checks) */
- switch (target) {
- case GL_TEXTURE_2D:
- case GL_TEXTURE_CUBE_MAP:
- /* one image slice, nothing special needs to be done */
- break;
- case GL_TEXTURE_1D:
- assert(height == 1);
- assert(depth == 1);
- assert(yoffset == 0);
- assert(zoffset == 0);
- break;
- default:
- _mesa_warning(ctx, "Unexpected target 0x%x in store_texsubimage()", target);
- return;
- }
-
- assert(numSlices == 1 || srcImageStride != 0);
-
- for (slice = 0; slice < numSlices; slice++) {
- GLubyte *dstMap;
- GLint dstRowStride;
-
- ctx->Driver.MapTextureImage(ctx, texImage,
- slice + sliceOffset,
- xoffset, yoffset, width, height,
- mapMode, &dstMap, &dstRowStride);
- if (dstMap) {
- /* Note: we're only storing a 2D (or 1D) slice at a time but we need
- * to pass the right 'dims' value so that GL_UNPACK_SKIP_IMAGES is
- * used for 3D images.
- */
- success = _mesa_texstore(ctx, dims, texImage->_BaseFormat,
- texImage->TexFormat,
- dstRowStride,
- &dstMap,
- width, height, 1, /* w, h, d */
- format, type, src, packing);
-
- ctx->Driver.UnmapTextureImage(ctx, texImage, slice + sliceOffset);
- }
-
- src += srcImageStride;
-
- if (!success)
- break;
- }
-
- if (!success)
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "%s", caller);
-}
-
-
-
-/**
- * This is the fallback for Driver.TexImage1D().
- */
-void
-_mesa_store_teximage1d(struct gl_context *ctx,
- struct gl_texture_image *texImage,
- GLint internalFormat,
- GLint width, GLint border,
- GLenum format, GLenum type, const GLvoid *pixels,
- const struct gl_pixelstore_attrib *packing)
-{
- if (width == 0)
- return;
-
- /* allocate storage for texture data */
- if (!ctx->Driver.AllocTextureImageBuffer(ctx, texImage, texImage->TexFormat,
- width, 1, 1)) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D");
- return;
- }
-
- store_texsubimage(ctx, texImage,
- 0, 0, 0, width, 1, 1,
- format, type, pixels, packing, "glTexImage1D");
-}
-
-
-/**
- * This is the fallback for Driver.TexImage2D().
- */
-void
-_mesa_store_teximage2d(struct gl_context *ctx,
- struct gl_texture_image *texImage,
- GLint internalFormat,
- GLint width, GLint height, GLint border,
- GLenum format, GLenum type, const void *pixels,
- const struct gl_pixelstore_attrib *packing)
-{
- if (width == 0 || height == 0)
- return;
-
- /* allocate storage for texture data */
- if (!ctx->Driver.AllocTextureImageBuffer(ctx, texImage, texImage->TexFormat,
- width, height, 1)) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
- return;
- }
-
- store_texsubimage(ctx, texImage,
- 0, 0, 0, width, height, 1,
- format, type, pixels, packing, "glTexImage2D");
-}
-
-
-
-
-/*
- * This is the fallback for Driver.TexSubImage1D().
- */
-void
-_mesa_store_texsubimage1d(struct gl_context *ctx,
- struct gl_texture_image *texImage,
- GLint xoffset, GLint width,
- GLenum format, GLenum type, const void *pixels,
- const struct gl_pixelstore_attrib *packing)
-{
- store_texsubimage(ctx, texImage,
- xoffset, 0, 0, width, 1, 1,
- format, type, pixels, packing, "glTexSubImage1D");
-}
-
-
-
-/**
- * This is the fallback for Driver.TexSubImage2D().
- */
-void
-_mesa_store_texsubimage2d(struct gl_context *ctx,
- struct gl_texture_image *texImage,
- GLint xoffset, GLint yoffset,
- GLint width, GLint height,
- GLenum format, GLenum type, const void *pixels,
- const struct gl_pixelstore_attrib *packing)
-{
- store_texsubimage(ctx, texImage,
- xoffset, yoffset, 0, width, height, 1,
- format, type, pixels, packing, "glTexSubImage2D");
-}
projects / reactos.git / blobdiff