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reactos/dll/opengl/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;
* 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");
}
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