bring in recent texture swizzle changes from trunk

This commit is contained in:
Keith Whitwell 2006-09-22 14:18:56 +00:00
parent ceb222798b
commit e3904516bb
2 changed files with 607 additions and 133 deletions

View file

@ -604,6 +604,17 @@ do { \
#endif
/**
* Return 1 if this is a little endian machine, 0 if big endian.
*/
static INLINE GLboolean
_mesa_little_endian(void)
{
const GLuint ui = 1; /* intentionally not static */
return *((const GLubyte *) &ui);
}
/**********************************************************************
* Functions

View file

@ -63,11 +63,21 @@
#include "texformat.h"
#include "teximage.h"
#include "texstore.h"
#include "enums.h"
static const GLint ZERO = 4, ONE = 5;
enum {
ZERO = 4,
ONE = 5
};
static GLboolean can_swizzle(GLenum logicalBaseFormat)
/**
* 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:
@ -76,6 +86,12 @@ static GLboolean can_swizzle(GLenum logicalBaseFormat)
case GL_INTENSITY:
case GL_ALPHA:
case GL_LUMINANCE:
case GL_RED:
case GL_GREEN:
case GL_BLUE:
case GL_BGR:
case GL_BGRA:
case GL_ABGR_EXT:
return GL_TRUE;
default:
return GL_FALSE;
@ -83,89 +99,172 @@ static GLboolean can_swizzle(GLenum logicalBaseFormat)
}
enum {
IDX_LUMINANCE = 0,
IDX_ALPHA,
IDX_INTENSITY,
IDX_LUMINANCE_ALPHA,
IDX_RGB,
IDX_RGBA,
IDX_RED,
IDX_GREEN,
IDX_BLUE,
IDX_BGR,
IDX_BGRA,
IDX_ABGR,
MAX_IDX
};
#define MAP1(x) MAP4(x, ZERO, ZERO, ZERO)
#define MAP2(x,y) MAP4(x, y, ZERO, ZERO)
#define MAP3(x,y,z) MAP4(x, y, z, ZERO)
#define MAP4(x,y,z,w) { x, y, z, w, ZERO, ONE }
static const struct {
GLubyte format_idx;
GLubyte to_rgba[6];
GLubyte from_rgba[6];
} mappings[MAX_IDX] =
{
{
IDX_LUMINANCE,
MAP4(0,0,0,ONE),
MAP1(0)
},
{
IDX_ALPHA,
MAP4(ZERO, ZERO, ZERO, 0),
MAP1(3)
},
{
IDX_INTENSITY,
MAP4(0, 0, 0, 0),
MAP1(0),
},
{
IDX_LUMINANCE_ALPHA,
MAP4(0,0,0,1),
MAP2(0,3)
},
{
IDX_RGB,
MAP4(0,1,2,ONE),
MAP3(0,1,2)
},
{
IDX_RGBA,
MAP4(0,1,2,3),
MAP4(0,1,2,3),
},
{
IDX_RED,
MAP4(0, ZERO, ZERO, ONE),
MAP1(0),
},
{
IDX_GREEN,
MAP4(ZERO, 0, ZERO, ONE),
MAP1(1),
},
{
IDX_BLUE,
MAP4(ZERO, ZERO, 0, ONE),
MAP1(2),
},
{
IDX_BGR,
MAP4(2,1,0,ONE),
MAP3(2,1,0)
},
{
IDX_BGRA,
MAP4(2,1,0,3),
MAP4(2,1,0,3)
},
{
IDX_ABGR,
MAP4(3,2,1,0),
MAP4(3,2,1,0)
},
};
/**
* Convert a GL image format enum to an IDX_* value (see above).
*/
static int
get_map_idx(GLenum value)
{
switch (value) {
case GL_LUMINANCE: return IDX_LUMINANCE;
case GL_ALPHA: return IDX_ALPHA;
case GL_INTENSITY: return IDX_INTENSITY;
case GL_LUMINANCE_ALPHA: return IDX_LUMINANCE_ALPHA;
case GL_RGB: return IDX_RGB;
case GL_RGBA: return IDX_RGBA;
case GL_RED: return IDX_RED;
case GL_GREEN: return IDX_GREEN;
case GL_BLUE: return IDX_BLUE;
case GL_BGR: return IDX_BGR;
case GL_BGRA: return IDX_BGRA;
case GL_ABGR_EXT: return IDX_ABGR;
default:
_mesa_problem(NULL, "Unexpected inFormat");
return 0;
}
}
/**
* When promoting texture formats (see below) we need to compute the
* mapping of dest components back to source components.
* This function does that.
* \param logicalBaseFormat the logical format of the texture
* \param textureBaseFormat the final texture format
* \return map[4] the four mapping values
* \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 logicalBaseFormat, GLenum textureBaseFormat,
GLubyte map[6])
compute_component_mapping(GLenum inFormat, GLenum outFormat,
GLubyte *map)
{
map[ZERO] = ZERO;
map[ONE] = ONE;
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]];
/* compute mapping from dest components back to src components */
switch (textureBaseFormat) {
case GL_RGB:
case GL_RGBA:
switch (logicalBaseFormat) {
case GL_LUMINANCE:
map[0] = map[1] = map[2] = 0;
if (textureBaseFormat == GL_RGBA)
map[3] = ONE;
break;
case GL_ALPHA:
ASSERT(textureBaseFormat == GL_RGBA);
map[0] = map[1] = map[2] = ZERO;
map[3] = 0;
break;
case GL_INTENSITY:
map[0] = map[1] = map[2] = 0;
if (textureBaseFormat == GL_RGBA)
map[3] = 0;
break;
case GL_LUMINANCE_ALPHA:
ASSERT(textureBaseFormat == GL_RGBA);
map[0] = map[1] = map[2] = 0;
map[3] = 1;
break;
case GL_RGB:
ASSERT(textureBaseFormat == GL_RGBA);
map[0] = 0;
map[1] = 1;
map[2] = 2;
map[3] = ONE;
break;
case GL_RGBA:
ASSERT(textureBaseFormat == GL_RGBA);
map[0] = 0;
map[1] = 1;
map[2] = 2;
map[3] = 3;
break;
default:
_mesa_problem(NULL, "Unexpected logicalBaseFormat");
map[0] = map[1] = map[2] = map[3] = 0;
}
break;
case GL_LUMINANCE_ALPHA:
switch (logicalBaseFormat) {
case GL_LUMINANCE:
map[0] = 0;
map[1] = ONE;
break;
case GL_ALPHA:
map[0] = ZERO;
map[1] = 0;
break;
case GL_INTENSITY:
map[0] = 0;
map[1] = 0;
break;
default:
_mesa_problem(NULL, "Unexpected logicalBaseFormat");
map[0] = map[1] = 0;
}
break;
default:
_mesa_problem(NULL, "Unexpected logicalBaseFormat");
map[0] = map[1] = 0;
break;
}
map[ZERO] = ZERO;
map[ONE] = ONE;
/*
_mesa_printf("from %x/%s to %x/%s map %d %d %d %d %d %d\n",
inFormat, _mesa_lookup_enum_by_nr(inFormat),
outFormat, _mesa_lookup_enum_by_nr(outFormat),
map[0],
map[1],
map[2],
map[3],
map[4],
map[5]);
*/
}
@ -552,14 +651,16 @@ _mesa_make_temp_chan_image(GLcontext *ctx, GLuint dims,
* \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
* \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)
{
GLubyte tmp[8];
GLubyte tmp[6];
GLuint i;
tmp[ZERO] = 0x0;
@ -596,10 +697,60 @@ swizzle_copy(GLubyte *dst, GLuint dstComponents, const GLubyte *src,
dst += 2;
}
break;
case 1:
for (i = 0; i < count; i++) {
COPY_4UBV(tmp, src);
src += srcComponents;
dst[0] = tmp[map[0]];
dst += 1;
}
break;
}
}
static const GLubyte map_identity[6] = { 0, 1, 2, 3, ZERO, ONE };
static const GLubyte map_3210[6] = { 3, 2, 1, 0, ZERO, ONE };
/* Deal with the _REV input types:
*/
static const GLubyte *
type_mapping( GLenum srcType )
{
switch (srcType) {
case GL_UNSIGNED_BYTE:
return map_identity;
case GL_UNSIGNED_INT_8_8_8_8:
return map_3210;
case GL_UNSIGNED_INT_8_8_8_8_REV:
return map_identity;
default:
return NULL;
}
}
/* Mapping required if input type is
*/
static const GLubyte *
byteswap_mapping( GLboolean swapBytes,
GLenum srcType )
{
if (!swapBytes)
return map_identity;
switch (srcType) {
case GL_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.
*/
@ -607,7 +758,12 @@ static void
_mesa_swizzle_ubyte_image(GLcontext *ctx,
GLuint dimensions,
GLenum srcFormat,
const GLubyte *dstmap, GLint dstComponents,
GLenum srcType,
GLenum baseInternalFormat,
const GLubyte *rgba2dst,
GLuint dstComponents,
GLvoid *dstAddr,
GLint dstXoffset, GLint dstYoffset, GLint dstZoffset,
@ -619,9 +775,9 @@ _mesa_swizzle_ubyte_image(GLcontext *ctx,
const struct gl_pixelstore_attrib *srcPacking )
{
GLint srcComponents = _mesa_components_in_format(srcFormat);
GLubyte srcmap[6], map[4];
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);
@ -635,10 +791,20 @@ _mesa_swizzle_ubyte_image(GLcontext *ctx,
(void) ctx;
compute_component_mapping(srcFormat, GL_RGBA, srcmap);
/* 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] = srcmap[dstmap[i]];
map[i] = srctype2ubyte[swap[src2base[base2rgba[rgba2dst[i]]]]];
/* _mesa_printf("map %d %d %d %d\n", map[0], map[1], map[2], map[3]); */
if (srcRowStride == srcWidth * srcComponents &&
dimensions < 3) {
@ -817,6 +983,59 @@ _mesa_texstore_rgba(TEXSTORE_PARAMS)
}
}
}
else if (!ctx->_ImageTransferState &&
_mesa_little_endian() &&
CHAN_TYPE == GL_UNSIGNED_BYTE &&
(srcType == GL_UNSIGNED_BYTE ||
srcType == GL_UNSIGNED_INT_8_8_8_8 ||
srcType == GL_UNSIGNED_INT_8_8_8_8_REV) &&
can_swizzle(baseInternalFormat) &&
can_swizzle(srcFormat)) {
const GLubyte *dstmap;
GLuint components;
/* dstmap - how to swizzle from RGBA to dst format:
*/
if (dstFormat == &_mesa_texformat_rgba) {
dstmap = mappings[IDX_RGBA].from_rgba;
components = 4;
}
else if (dstFormat == &_mesa_texformat_rgb) {
dstmap = mappings[IDX_RGB].from_rgba;
components = 3;
}
else if (dstFormat == &_mesa_texformat_alpha) {
dstmap = mappings[IDX_ALPHA].from_rgba;
components = 1;
}
else if (dstFormat == &_mesa_texformat_luminance) {
dstmap = mappings[IDX_LUMINANCE].from_rgba;
components = 1;
}
else if (dstFormat == &_mesa_texformat_luminance_alpha) {
dstmap = mappings[IDX_LUMINANCE_ALPHA].from_rgba;
components = 2;
}
else if (dstFormat == &_mesa_texformat_intensity) {
dstmap = mappings[IDX_INTENSITY].from_rgba;
components = 1;
}
else {
_mesa_problem(ctx, "Unexpected dstFormat in _mesa_texstore_rgba");
return GL_FALSE;
}
_mesa_swizzle_ubyte_image(ctx, dims,
srcFormat,
srcType,
baseInternalFormat,
dstmap, components,
dstAddr, dstXoffset, dstYoffset, dstZoffset,
dstRowStride, dstImageOffsets,
srcWidth, srcHeight, srcDepth, srcAddr,
srcPacking);
}
else {
/* general path */
const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
@ -1050,13 +1269,14 @@ _mesa_texstore_rgb565(TEXSTORE_PARAMS)
}
/**
* Store a texture in MESA_FORMAT_RGBA8888 or MESA_FORMAT_RGBA8888_REV.
*/
GLboolean
_mesa_texstore_rgba8888(TEXSTORE_PARAMS)
{
const GLuint ui = 1;
const GLubyte littleEndian = *((const GLubyte *) &ui);
const GLboolean littleEndian = _mesa_little_endian();
(void)littleEndian;
ASSERT(dstFormat == &_mesa_texformat_rgba8888 ||
dstFormat == &_mesa_texformat_rgba8888_rev);
ASSERT(dstFormat->TexelBytes == 4);
@ -1066,7 +1286,25 @@ _mesa_texstore_rgba8888(TEXSTORE_PARAMS)
dstFormat == &_mesa_texformat_rgba8888 &&
baseInternalFormat == GL_RGBA &&
((srcFormat == GL_RGBA && srcType == GL_UNSIGNED_INT_8_8_8_8) ||
(srcFormat == GL_ABGR_EXT && srcType == GL_UNSIGNED_INT_8_8_8_8_REV))) {
(srcFormat == GL_RGBA && srcType == GL_UNSIGNED_BYTE && !littleEndian) ||
(srcFormat == GL_ABGR_EXT && srcType == GL_UNSIGNED_INT_8_8_8_8_REV) ||
(srcFormat == GL_ABGR_EXT && srcType == GL_UNSIGNED_BYTE && littleEndian))) {
/* simple memcpy path */
memcpy_texture(ctx, dims,
dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
dstRowStride,
dstImageOffsets,
srcWidth, srcHeight, srcDepth, srcFormat, srcType,
srcAddr, srcPacking);
}
else if (!ctx->_ImageTransferState &&
!srcPacking->SwapBytes &&
dstFormat == &_mesa_texformat_rgba8888_rev &&
baseInternalFormat == GL_RGBA &&
((srcFormat == GL_RGBA && srcType == GL_UNSIGNED_INT_8_8_8_8_REV) ||
(srcFormat == GL_RGBA && srcType == GL_UNSIGNED_BYTE && littleEndian) ||
(srcFormat == GL_ABGR_EXT && srcType == GL_UNSIGNED_INT_8_8_8_8) ||
(srcFormat == GL_ABGR_EXT && srcType == GL_UNSIGNED_BYTE && !littleEndian))) {
/* simple memcpy path */
memcpy_texture(ctx, dims,
dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
@ -1075,40 +1313,41 @@ _mesa_texstore_rgba8888(TEXSTORE_PARAMS)
srcWidth, srcHeight, srcDepth, srcFormat, srcType,
srcAddr, srcPacking);
}
#if 0
/* broken? */
else if (!ctx->_ImageTransferState &&
!srcPacking->SwapBytes &&
srcType == GL_UNSIGNED_BYTE &&
dstFormat == &_mesa_texformat_rgba8888 &&
littleEndian &&
/* Three texture formats involved: srcFormat,
* baseInternalFormat and destFormat (GL_RGBA). Only two
* may differ. _mesa_swizzle_ubyte_image can't handle two
* propagations at once correctly. */
(srcFormat == baseInternalFormat ||
baseInternalFormat == GL_RGBA) &&
littleEndian &&
(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 GL_RGBA to dst format:
*
* FIXME - add !litteEndian and _rev varients:
/* dstmap - how to swizzle from RGBA to dst format:
*/
dstmap[3] = 0;
dstmap[2] = 1;
dstmap[1] = 2;
dstmap[0] = 3;
if (dstFormat == &_mesa_texformat_rgba8888) {
dstmap[3] = 0;
dstmap[2] = 1;
dstmap[1] = 2;
dstmap[0] = 3;
}
else {
dstmap[3] = 3;
dstmap[2] = 2;
dstmap[1] = 1;
dstmap[0] = 0;
}
_mesa_swizzle_ubyte_image(ctx, dims,
srcFormat,
srcType,
baseInternalFormat,
dstmap, 4,
dstAddr, dstXoffset, dstYoffset, dstZoffset,
dstRowStride, dstImageStride,
dstRowStride, dstImageOffsets,
srcWidth, srcHeight, srcDepth, srcAddr,
srcPacking);
}
#endif
else {
/* general path */
const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
@ -1159,8 +1398,7 @@ _mesa_texstore_rgba8888(TEXSTORE_PARAMS)
GLboolean
_mesa_texstore_argb8888(TEXSTORE_PARAMS)
{
const GLuint ui = 1;
const GLubyte littleEndian = *((const GLubyte *) &ui);
const GLboolean littleEndian = _mesa_little_endian();
ASSERT(dstFormat == &_mesa_texformat_argb8888 ||
dstFormat == &_mesa_texformat_argb8888_rev);
@ -1200,6 +1438,8 @@ _mesa_texstore_argb8888(TEXSTORE_PARAMS)
!srcPacking->SwapBytes &&
dstFormat == &_mesa_texformat_argb8888 &&
srcFormat == GL_RGB &&
(baseInternalFormat == GL_RGBA ||
baseInternalFormat == GL_RGB) &&
srcType == GL_UNSIGNED_BYTE) {
int img, row, col;
@ -1228,6 +1468,7 @@ _mesa_texstore_argb8888(TEXSTORE_PARAMS)
!srcPacking->SwapBytes &&
dstFormat == &_mesa_texformat_argb8888 &&
srcFormat == GL_RGBA &&
baseInternalFormat == GL_RGBA &&
(srcType == GL_UNSIGNED_BYTE && littleEndian)) {
GLint img, row, col;
/* For some reason, streaming copies to write-combined regions
@ -1262,6 +1503,7 @@ _mesa_texstore_argb8888(TEXSTORE_PARAMS)
!srcPacking->SwapBytes &&
dstFormat == &_mesa_texformat_argb8888 &&
srcFormat == GL_RGBA &&
baseInternalFormat == GL_RGBA &&
srcType == GL_UNSIGNED_BYTE) {
GLint img, row, col;
@ -1287,29 +1529,36 @@ _mesa_texstore_argb8888(TEXSTORE_PARAMS)
}
}
else if (!ctx->_ImageTransferState &&
!srcPacking->SwapBytes &&
dstFormat == &_mesa_texformat_argb8888 &&
srcType == GL_UNSIGNED_BYTE &&
littleEndian &&
/* Three texture formats involved: srcFormat,
* baseInternalFormat and destFormat (GL_RGBA). Only two
* may differ. _mesa_swizzle_ubyte_image can't handle two
* propagations at once correctly. */
(srcFormat == baseInternalFormat ||
baseInternalFormat == GL_RGBA) &&
(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 GL_RGBA to dst format:
/* dstmap - how to swizzle from RGBA to dst format:
*/
dstmap[3] = 3; /* alpha */
dstmap[2] = 0; /* red */
dstmap[1] = 1; /* green */
dstmap[0] = 2; /* blue */
if (dstFormat == &_mesa_texformat_argb8888) {
dstmap[3] = 3; /* alpha */
dstmap[2] = 0; /* red */
dstmap[1] = 1; /* green */
dstmap[0] = 2; /* blue */
}
else {
assert(dstFormat == &_mesa_texformat_argb8888_rev);
dstmap[3] = 2;
dstmap[2] = 1;
dstmap[1] = 0;
dstmap[0] = 3;
}
_mesa_swizzle_ubyte_image(ctx, dims,
srcFormat,
srcType,
baseInternalFormat,
dstmap, 4,
dstAddr, dstXoffset, dstYoffset, dstZoffset,
dstRowStride,
@ -1367,8 +1616,7 @@ _mesa_texstore_argb8888(TEXSTORE_PARAMS)
GLboolean
_mesa_texstore_rgb888(TEXSTORE_PARAMS)
{
const GLuint ui = 1;
const GLubyte littleEndian = *((const GLubyte *) &ui);
const GLboolean littleEndian = _mesa_little_endian();
ASSERT(dstFormat == &_mesa_texformat_rgb888);
ASSERT(dstFormat->TexelBytes == 3);
@ -1413,6 +1661,31 @@ _mesa_texstore_rgb888(TEXSTORE_PARAMS)
}
}
}
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:
*/
dstmap[0] = 2;
dstmap[1] = 1;
dstmap[2] = 0;
dstmap[3] = ONE; /* ? */
_mesa_swizzle_ubyte_image(ctx, dims,
srcFormat,
srcType,
baseInternalFormat,
dstmap, 3,
dstAddr, dstXoffset, dstYoffset, dstZoffset,
dstRowStride, dstImageOffsets,
srcWidth, srcHeight, srcDepth, srcAddr,
srcPacking);
}
else {
/* general path */
const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
@ -1469,8 +1742,7 @@ _mesa_texstore_rgb888(TEXSTORE_PARAMS)
GLboolean
_mesa_texstore_bgr888(TEXSTORE_PARAMS)
{
const GLuint ui = 1;
const GLubyte littleEndian = *((const GLubyte *) &ui);
const GLboolean littleEndian = _mesa_little_endian();
ASSERT(dstFormat == &_mesa_texformat_bgr888);
ASSERT(dstFormat->TexelBytes == 3);
@ -1515,6 +1787,31 @@ _mesa_texstore_bgr888(TEXSTORE_PARAMS)
}
}
}
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:
*/
dstmap[0] = 0;
dstmap[1] = 1;
dstmap[2] = 2;
dstmap[3] = ONE; /* ? */
_mesa_swizzle_ubyte_image(ctx, dims,
srcFormat,
srcType,
baseInternalFormat,
dstmap, 3,
dstAddr, dstXoffset, dstYoffset, dstZoffset,
dstRowStride, dstImageOffsets,
srcWidth, srcHeight, srcDepth, srcAddr,
srcPacking);
}
else {
/* general path */
const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
@ -1689,8 +1986,7 @@ _mesa_texstore_argb1555(TEXSTORE_PARAMS)
GLboolean
_mesa_texstore_al88(TEXSTORE_PARAMS)
{
const GLuint ui = 1;
const GLubyte littleEndian = *((const GLubyte *) &ui);
const GLboolean littleEndian = _mesa_little_endian();
ASSERT(dstFormat == &_mesa_texformat_al88 ||
dstFormat == &_mesa_texformat_al88_rev);
@ -1711,6 +2007,37 @@ _mesa_texstore_al88(TEXSTORE_PARAMS)
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_texformat_al88) {
dstmap[0] = 0;
dstmap[1] = 3;
}
else {
dstmap[0] = 3;
dstmap[1] = 0;
}
dstmap[2] = ZERO; /* ? */
dstmap[3] = ONE; /* ? */
_mesa_swizzle_ubyte_image(ctx, dims,
srcFormat,
srcType,
baseInternalFormat,
dstmap, 2,
dstAddr, dstXoffset, dstYoffset, dstZoffset,
dstRowStride, dstImageOffsets,
srcWidth, srcHeight, srcDepth, srcAddr,
srcPacking);
}
else {
/* general path */
const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
@ -1831,6 +2158,36 @@ _mesa_texstore_a8(TEXSTORE_PARAMS)
srcWidth, srcHeight, srcDepth, srcFormat, srcType,
srcAddr, srcPacking);
}
else if (!ctx->_ImageTransferState &&
_mesa_little_endian() &&
srcType == GL_UNSIGNED_BYTE &&
can_swizzle(baseInternalFormat) &&
can_swizzle(srcFormat)) {
GLubyte dstmap[4];
/* dstmap - how to swizzle from RGBA to dst format:
*/
if (dstFormat == &_mesa_texformat_a8) {
dstmap[0] = 3;
}
else {
dstmap[0] = 0;
}
dstmap[1] = ZERO; /* ? */
dstmap[2] = ZERO; /* ? */
dstmap[3] = ONE; /* ? */
_mesa_swizzle_ubyte_image(ctx, dims,
srcFormat,
srcType,
baseInternalFormat,
dstmap, 1,
dstAddr, dstXoffset, dstYoffset, dstZoffset,
dstRowStride, dstImageOffsets,
srcWidth, srcHeight, srcDepth, srcAddr,
srcPacking);
}
else {
/* general path */
const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
@ -1912,8 +2269,7 @@ _mesa_texstore_ci8(TEXSTORE_PARAMS)
GLboolean
_mesa_texstore_ycbcr(TEXSTORE_PARAMS)
{
const GLuint ui = 1;
const GLubyte littleEndian = *((const GLubyte *) &ui);
const GLboolean littleEndian = _mesa_little_endian();
(void) ctx; (void) dims; (void) baseInternalFormat;
ASSERT((dstFormat == &_mesa_texformat_ycbcr) ||
@ -2164,6 +2520,113 @@ _mesa_texstore_rgba_float16(TEXSTORE_PARAMS)
}
#if FEATURE_EXT_texture_sRGB
GLboolean
_mesa_texstore_srgb8(TEXSTORE_PARAMS)
{
const GLboolean littleEndian = _mesa_little_endian();
const struct gl_texture_format *newDstFormat;
StoreTexImageFunc store;
GLboolean k;
ASSERT(dstFormat == &_mesa_texformat_srgb8);
/* reuse normal rgb texstore code */
if (littleEndian) {
newDstFormat = &_mesa_texformat_bgr888;
store = _mesa_texstore_bgr888;
}
else {
newDstFormat = &_mesa_texformat_rgb888;
store = _mesa_texstore_rgb888;
}
k = store(ctx, dims, baseInternalFormat,
newDstFormat, dstAddr,
dstXoffset, dstYoffset, dstZoffset,
dstRowStride, dstImageOffsets,
srcWidth, srcHeight, srcDepth,
srcFormat, srcType,
srcAddr, srcPacking);
return k;
}
GLboolean
_mesa_texstore_srgba8(TEXSTORE_PARAMS)
{
const GLboolean littleEndian = _mesa_little_endian();
const struct gl_texture_format *newDstFormat;
GLboolean k;
ASSERT(dstFormat == &_mesa_texformat_srgba8);
/* reuse normal rgba texstore code */
if (littleEndian)
newDstFormat = &_mesa_texformat_rgba8888_rev;
else
newDstFormat = &_mesa_texformat_rgba8888;
k = _mesa_texstore_rgba8888(ctx, dims, baseInternalFormat,
newDstFormat, dstAddr,
dstXoffset, dstYoffset, dstZoffset,
dstRowStride, dstImageOffsets,
srcWidth, srcHeight, srcDepth,
srcFormat, srcType,
srcAddr, srcPacking);
return k;
}
GLboolean
_mesa_texstore_sl8(TEXSTORE_PARAMS)
{
const struct gl_texture_format *newDstFormat;
GLboolean k;
ASSERT(dstFormat == &_mesa_texformat_sl8);
newDstFormat = &_mesa_texformat_l8;
/* _mesa_textore_a8 handles luminance8 too */
k = _mesa_texstore_a8(ctx, dims, baseInternalFormat,
newDstFormat, dstAddr,
dstXoffset, dstYoffset, dstZoffset,
dstRowStride, dstImageOffsets,
srcWidth, srcHeight, srcDepth,
srcFormat, srcType,
srcAddr, srcPacking);
return k;
}
GLboolean
_mesa_texstore_sla8(TEXSTORE_PARAMS)
{
const GLboolean littleEndian = _mesa_little_endian();
const struct gl_texture_format *newDstFormat;
GLboolean k;
ASSERT(dstFormat == &_mesa_texformat_sla8);
/* reuse normal luminance/alpha texstore code */
if (littleEndian)
newDstFormat = &_mesa_texformat_al88;
else
newDstFormat = &_mesa_texformat_al88_rev;
k = _mesa_texstore_al88(ctx, dims, baseInternalFormat,
newDstFormat, dstAddr,
dstXoffset, dstYoffset, dstZoffset,
dstRowStride, dstImageOffsets,
srcWidth, srcHeight, srcDepth,
srcFormat, srcType,
srcAddr, srcPacking);
return k;
}
#endif /* FEATURE_EXT_texture_sRGB */
/**
* Check if an unpack PBO is active prior to fetching a texture image.