#include "pixeltransfer.h"
#include "imports.h"
#include "glformats.h"
-#include "../../gallium/auxiliary/util/u_format_rgb9e5.h"
-#include "../../gallium/auxiliary/util/u_format_r11g11b10f.h"
#include "format_utils.h"
#include "format_pack.h"
}
-/**
- * Get indexes of color components for a basic color format, such as
- * GL_RGBA, GL_RED, GL_LUMINANCE_ALPHA, etc. Return -1 for indexes
- * that do not apply.
- */
-static void
-get_component_indexes(GLenum format,
- GLint *redIndex,
- GLint *greenIndex,
- GLint *blueIndex,
- GLint *alphaIndex,
- GLint *luminanceIndex,
- GLint *intensityIndex)
-{
- *redIndex = -1;
- *greenIndex = -1;
- *blueIndex = -1;
- *alphaIndex = -1;
- *luminanceIndex = -1;
- *intensityIndex = -1;
-
- switch (format) {
- case GL_LUMINANCE:
- case GL_LUMINANCE_INTEGER_EXT:
- *luminanceIndex = 0;
- break;
- case GL_LUMINANCE_ALPHA:
- case GL_LUMINANCE_ALPHA_INTEGER_EXT:
- *luminanceIndex = 0;
- *alphaIndex = 1;
- break;
- case GL_INTENSITY:
- *intensityIndex = 0;
- break;
- case GL_RED:
- case GL_RED_INTEGER_EXT:
- *redIndex = 0;
- break;
- case GL_GREEN:
- case GL_GREEN_INTEGER_EXT:
- *greenIndex = 0;
- break;
- case GL_BLUE:
- case GL_BLUE_INTEGER_EXT:
- *blueIndex = 0;
- break;
- case GL_ALPHA:
- case GL_ALPHA_INTEGER_EXT:
- *alphaIndex = 0;
- break;
- case GL_RG:
- case GL_RG_INTEGER:
- *redIndex = 0;
- *greenIndex = 1;
- break;
- case GL_RGB:
- case GL_RGB_INTEGER_EXT:
- *redIndex = 0;
- *greenIndex = 1;
- *blueIndex = 2;
- break;
- case GL_BGR:
- case GL_BGR_INTEGER_EXT:
- *blueIndex = 0;
- *greenIndex = 1;
- *redIndex = 2;
- break;
- case GL_RGBA:
- case GL_RGBA_INTEGER_EXT:
- *redIndex = 0;
- *greenIndex = 1;
- *blueIndex = 2;
- *alphaIndex = 3;
- break;
- case GL_BGRA:
- case GL_BGRA_INTEGER:
- *redIndex = 2;
- *greenIndex = 1;
- *blueIndex = 0;
- *alphaIndex = 3;
- break;
- case GL_ABGR_EXT:
- *redIndex = 3;
- *greenIndex = 2;
- *blueIndex = 1;
- *alphaIndex = 0;
- break;
- default:
- assert(0 && "bad format in get_component_indexes()");
- }
-}
-
-
-
/**
* For small integer types, return the min and max possible values.
* Used for clamping floats to unscaled integer types.
}
-/**
- * Return source/dest RGBA indexes for unpacking pixels.
- */
-static void
-get_component_mapping(GLenum format,
- GLint *rSrc,
- GLint *gSrc,
- GLint *bSrc,
- GLint *aSrc,
- GLint *rDst,
- GLint *gDst,
- GLint *bDst,
- GLint *aDst)
-{
- switch (format) {
- case GL_RED:
- case GL_RED_INTEGER_EXT:
- *rSrc = 0;
- *gSrc = *bSrc = *aSrc = -1;
- break;
- case GL_GREEN:
- case GL_GREEN_INTEGER_EXT:
- *gSrc = 0;
- *rSrc = *bSrc = *aSrc = -1;
- break;
- case GL_BLUE:
- case GL_BLUE_INTEGER_EXT:
- *bSrc = 0;
- *rSrc = *gSrc = *aSrc = -1;
- break;
- case GL_ALPHA:
- case GL_ALPHA_INTEGER_EXT:
- *rSrc = *gSrc = *bSrc = -1;
- *aSrc = 0;
- break;
- case GL_LUMINANCE:
- case GL_LUMINANCE_INTEGER_EXT:
- *rSrc = *gSrc = *bSrc = 0;
- *aSrc = -1;
- break;
- case GL_LUMINANCE_ALPHA:
- case GL_LUMINANCE_ALPHA_INTEGER_EXT:
- *rSrc = *gSrc = *bSrc = 0;
- *aSrc = 1;
- break;
- case GL_INTENSITY:
- *rSrc = *gSrc = *bSrc = *aSrc = 0;
- break;
- case GL_RG:
- case GL_RG_INTEGER:
- *rSrc = 0;
- *gSrc = 1;
- *bSrc = -1;
- *aSrc = -1;
- *rDst = 0;
- *gDst = 1;
- *bDst = 2;
- *aDst = 3;
- break;
- case GL_RGB:
- case GL_RGB_INTEGER:
- *rSrc = 0;
- *gSrc = 1;
- *bSrc = 2;
- *aSrc = -1;
- *rDst = 0;
- *gDst = 1;
- *bDst = 2;
- *aDst = 3;
- break;
- case GL_BGR:
- case GL_BGR_INTEGER:
- *rSrc = 2;
- *gSrc = 1;
- *bSrc = 0;
- *aSrc = -1;
- *rDst = 2;
- *gDst = 1;
- *bDst = 0;
- *aDst = 3;
- break;
- case GL_RGBA:
- case GL_RGBA_INTEGER:
- *rSrc = 0;
- *gSrc = 1;
- *bSrc = 2;
- *aSrc = 3;
- *rDst = 0;
- *gDst = 1;
- *bDst = 2;
- *aDst = 3;
- break;
- case GL_BGRA:
- case GL_BGRA_INTEGER:
- *rSrc = 2;
- *gSrc = 1;
- *bSrc = 0;
- *aSrc = 3;
- *rDst = 2;
- *gDst = 1;
- *bDst = 0;
- *aDst = 3;
- break;
- case GL_ABGR_EXT:
- *rSrc = 3;
- *gSrc = 2;
- *bSrc = 1;
- *aSrc = 0;
- *rDst = 3;
- *gDst = 2;
- *bDst = 1;
- *aDst = 0;
- break;
- default:
- _mesa_problem(NULL, "bad srcFormat %s in get_component_mapping",
- _mesa_lookup_enum_by_nr(format));
- return;
- }
-}
-
-
-
-/*
- * This function extracts floating point RGBA values from arbitrary
- * image data. srcFormat and srcType are the format and type parameters
- * passed to glDrawPixels, glTexImage[123]D, glTexSubImage[123]D, etc.
- *
- * Refering to section 3.6.4 of the OpenGL 1.2 spec, this function
- * implements the "Conversion to floating point", "Conversion to RGB",
- * and "Final Expansion to RGBA" operations.
- *
- * Args: n - number of pixels
- * rgba - output colors
- * srcFormat - format of incoming data
- * srcType - data type of incoming data
- * src - source data pointer
- * swapBytes - perform byteswapping of incoming data?
- */
-static void
-extract_float_rgba(GLuint n, GLfloat rgba[][4],
- GLenum srcFormat, GLenum srcType, const GLvoid *src,
- GLboolean swapBytes)
-{
- GLint rSrc, gSrc, bSrc, aSrc;
- GLint stride;
- GLint rDst, bDst, gDst, aDst;
- GLboolean intFormat;
- GLfloat rs = 1.0f, gs = 1.0f, bs = 1.0f, as = 1.0f; /* scale factors */
-
- ASSERT(srcFormat == GL_RED ||
- srcFormat == GL_GREEN ||
- srcFormat == GL_BLUE ||
- srcFormat == GL_ALPHA ||
- srcFormat == GL_LUMINANCE ||
- srcFormat == GL_LUMINANCE_ALPHA ||
- srcFormat == GL_INTENSITY ||
- srcFormat == GL_RG ||
- srcFormat == GL_RGB ||
- srcFormat == GL_BGR ||
- srcFormat == GL_RGBA ||
- srcFormat == GL_BGRA ||
- srcFormat == GL_ABGR_EXT ||
- srcFormat == GL_RED_INTEGER_EXT ||
- srcFormat == GL_GREEN_INTEGER_EXT ||
- srcFormat == GL_BLUE_INTEGER_EXT ||
- srcFormat == GL_ALPHA_INTEGER_EXT ||
- srcFormat == GL_RG_INTEGER ||
- srcFormat == GL_RGB_INTEGER_EXT ||
- srcFormat == GL_RGBA_INTEGER_EXT ||
- srcFormat == GL_BGR_INTEGER_EXT ||
- srcFormat == GL_BGRA_INTEGER_EXT ||
- srcFormat == GL_LUMINANCE_INTEGER_EXT ||
- srcFormat == GL_LUMINANCE_ALPHA_INTEGER_EXT);
-
- ASSERT(srcType == GL_UNSIGNED_BYTE ||
- srcType == GL_BYTE ||
- srcType == GL_UNSIGNED_SHORT ||
- srcType == GL_SHORT ||
- srcType == GL_UNSIGNED_INT ||
- srcType == GL_INT ||
- srcType == GL_HALF_FLOAT_ARB ||
- srcType == GL_FLOAT ||
- srcType == GL_UNSIGNED_BYTE_3_3_2 ||
- srcType == GL_UNSIGNED_BYTE_2_3_3_REV ||
- srcType == GL_UNSIGNED_SHORT_5_6_5 ||
- srcType == GL_UNSIGNED_SHORT_5_6_5_REV ||
- srcType == GL_UNSIGNED_SHORT_4_4_4_4 ||
- srcType == GL_UNSIGNED_SHORT_4_4_4_4_REV ||
- srcType == GL_UNSIGNED_SHORT_5_5_5_1 ||
- srcType == GL_UNSIGNED_SHORT_1_5_5_5_REV ||
- srcType == GL_UNSIGNED_INT_8_8_8_8 ||
- srcType == GL_UNSIGNED_INT_8_8_8_8_REV ||
- srcType == GL_UNSIGNED_INT_10_10_10_2 ||
- srcType == GL_UNSIGNED_INT_2_10_10_10_REV ||
- srcType == GL_UNSIGNED_INT_5_9_9_9_REV ||
- srcType == GL_UNSIGNED_INT_10F_11F_11F_REV);
-
- get_component_mapping(srcFormat,
- &rSrc, &gSrc, &bSrc, &aSrc,
- &rDst, &gDst, &bDst, &aDst);
-
- stride = _mesa_components_in_format(srcFormat);
-
- intFormat = _mesa_is_enum_format_integer(srcFormat);
-
-#define PROCESS(SRC_INDEX, DST_INDEX, DEFAULT_FLT, DEFAULT_INT, TYPE, CONVERSION) \
- if ((SRC_INDEX) < 0) { \
- GLuint i; \
- if (intFormat) { \
- for (i = 0; i < n; i++) { \
- rgba[i][DST_INDEX] = DEFAULT_INT; \
- } \
- } \
- else { \
- for (i = 0; i < n; i++) { \
- rgba[i][DST_INDEX] = DEFAULT_FLT; \
- } \
- } \
- } \
- else if (swapBytes) { \
- const TYPE *s = (const TYPE *) src; \
- GLuint i; \
- for (i = 0; i < n; i++) { \
- TYPE value = s[SRC_INDEX]; \
- if (sizeof(TYPE) == 2) { \
- SWAP2BYTE(value); \
- } \
- else if (sizeof(TYPE) == 4) { \
- SWAP4BYTE(value); \
- } \
- if (intFormat) \
- rgba[i][DST_INDEX] = (GLfloat) value; \
- else \
- rgba[i][DST_INDEX] = (GLfloat) CONVERSION(value); \
- s += stride; \
- } \
- } \
- else { \
- const TYPE *s = (const TYPE *) src; \
- GLuint i; \
- if (intFormat) { \
- for (i = 0; i < n; i++) { \
- rgba[i][DST_INDEX] = (GLfloat) s[SRC_INDEX]; \
- s += stride; \
- } \
- } \
- else { \
- for (i = 0; i < n; i++) { \
- rgba[i][DST_INDEX] = (GLfloat) CONVERSION(s[SRC_INDEX]); \
- s += stride; \
- } \
- } \
- }
-
- switch (srcType) {
- case GL_UNSIGNED_BYTE:
- PROCESS(rSrc, RCOMP, 0.0F, 0, GLubyte, UBYTE_TO_FLOAT);
- PROCESS(gSrc, GCOMP, 0.0F, 0, GLubyte, UBYTE_TO_FLOAT);
- PROCESS(bSrc, BCOMP, 0.0F, 0, GLubyte, UBYTE_TO_FLOAT);
- PROCESS(aSrc, ACOMP, 1.0F, 255, GLubyte, UBYTE_TO_FLOAT);
- break;
- case GL_BYTE:
- PROCESS(rSrc, RCOMP, 0.0F, 0, GLbyte, BYTE_TO_FLOAT_TEX);
- PROCESS(gSrc, GCOMP, 0.0F, 0, GLbyte, BYTE_TO_FLOAT_TEX);
- PROCESS(bSrc, BCOMP, 0.0F, 0, GLbyte, BYTE_TO_FLOAT_TEX);
- PROCESS(aSrc, ACOMP, 1.0F, 127, GLbyte, BYTE_TO_FLOAT_TEX);
- break;
- case GL_UNSIGNED_SHORT:
- PROCESS(rSrc, RCOMP, 0.0F, 0, GLushort, USHORT_TO_FLOAT);
- PROCESS(gSrc, GCOMP, 0.0F, 0, GLushort, USHORT_TO_FLOAT);
- PROCESS(bSrc, BCOMP, 0.0F, 0, GLushort, USHORT_TO_FLOAT);
- PROCESS(aSrc, ACOMP, 1.0F, 0xffff, GLushort, USHORT_TO_FLOAT);
- break;
- case GL_SHORT:
- PROCESS(rSrc, RCOMP, 0.0F, 0, GLshort, SHORT_TO_FLOAT_TEX);
- PROCESS(gSrc, GCOMP, 0.0F, 0, GLshort, SHORT_TO_FLOAT_TEX);
- PROCESS(bSrc, BCOMP, 0.0F, 0, GLshort, SHORT_TO_FLOAT_TEX);
- PROCESS(aSrc, ACOMP, 1.0F, 32767, GLshort, SHORT_TO_FLOAT_TEX);
- break;
- case GL_UNSIGNED_INT:
- PROCESS(rSrc, RCOMP, 0.0F, 0, GLuint, UINT_TO_FLOAT);
- PROCESS(gSrc, GCOMP, 0.0F, 0, GLuint, UINT_TO_FLOAT);
- PROCESS(bSrc, BCOMP, 0.0F, 0, GLuint, UINT_TO_FLOAT);
- PROCESS(aSrc, ACOMP, 1.0F, 0xffffffff, GLuint, UINT_TO_FLOAT);
- break;
- case GL_INT:
- PROCESS(rSrc, RCOMP, 0.0F, 0, GLint, INT_TO_FLOAT);
- PROCESS(gSrc, GCOMP, 0.0F, 0, GLint, INT_TO_FLOAT);
- PROCESS(bSrc, BCOMP, 0.0F, 0, GLint, INT_TO_FLOAT);
- PROCESS(aSrc, ACOMP, 1.0F, 2147483647, GLint, INT_TO_FLOAT);
- break;
- case GL_FLOAT:
- PROCESS(rSrc, RCOMP, 0.0F, 0.0F, GLfloat, (GLfloat));
- PROCESS(gSrc, GCOMP, 0.0F, 0.0F, GLfloat, (GLfloat));
- PROCESS(bSrc, BCOMP, 0.0F, 0.0F, GLfloat, (GLfloat));
- PROCESS(aSrc, ACOMP, 1.0F, 1.0F, GLfloat, (GLfloat));
- break;
- case GL_HALF_FLOAT_ARB:
- PROCESS(rSrc, RCOMP, 0.0F, 0.0F, GLhalfARB, _mesa_half_to_float);
- PROCESS(gSrc, GCOMP, 0.0F, 0.0F, GLhalfARB, _mesa_half_to_float);
- PROCESS(bSrc, BCOMP, 0.0F, 0.0F, GLhalfARB, _mesa_half_to_float);
- PROCESS(aSrc, ACOMP, 1.0F, 1.0F, GLhalfARB, _mesa_half_to_float);
- break;
- case GL_UNSIGNED_BYTE_3_3_2:
- {
- const GLubyte *ubsrc = (const GLubyte *) src;
- GLuint i;
- if (!intFormat) {
- rs = 1.0F / 7.0F;
- gs = 1.0F / 7.0F;
- bs = 1.0F / 3.0F;
- }
- for (i = 0; i < n; i ++) {
- GLubyte p = ubsrc[i];
- rgba[i][rDst] = ((p >> 5) ) * rs;
- rgba[i][gDst] = ((p >> 2) & 0x7) * gs;
- rgba[i][bDst] = ((p ) & 0x3) * bs;
- rgba[i][aDst] = 1.0F;
- }
- }
- break;
- case GL_UNSIGNED_BYTE_2_3_3_REV:
- {
- const GLubyte *ubsrc = (const GLubyte *) src;
- GLuint i;
- if (!intFormat) {
- rs = 1.0F / 7.0F;
- gs = 1.0F / 7.0F;
- bs = 1.0F / 3.0F;
- }
- for (i = 0; i < n; i ++) {
- GLubyte p = ubsrc[i];
- rgba[i][rDst] = ((p ) & 0x7) * rs;
- rgba[i][gDst] = ((p >> 3) & 0x7) * gs;
- rgba[i][bDst] = ((p >> 6) ) * bs;
- rgba[i][aDst] = 1.0F;
- }
- }
- break;
- case GL_UNSIGNED_SHORT_5_6_5:
- if (!intFormat) {
- rs = 1.0F / 31.0F;
- gs = 1.0F / 63.0F;
- bs = 1.0F / 31.0F;
- }
- if (swapBytes) {
- const GLushort *ussrc = (const GLushort *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLushort p = ussrc[i];
- SWAP2BYTE(p);
- rgba[i][rDst] = ((p >> 11) ) * rs;
- rgba[i][gDst] = ((p >> 5) & 0x3f) * gs;
- rgba[i][bDst] = ((p ) & 0x1f) * bs;
- rgba[i][aDst] = 1.0F;
- }
- }
- else {
- const GLushort *ussrc = (const GLushort *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLushort p = ussrc[i];
- rgba[i][rDst] = ((p >> 11) ) * rs;
- rgba[i][gDst] = ((p >> 5) & 0x3f) * gs;
- rgba[i][bDst] = ((p ) & 0x1f) * bs;
- rgba[i][aDst] = 1.0F;
- }
- }
- break;
- case GL_UNSIGNED_SHORT_5_6_5_REV:
- if (!intFormat) {
- rs = 1.0F / 31.0F;
- gs = 1.0F / 63.0F;
- bs = 1.0F / 31.0F;
- }
- if (swapBytes) {
- const GLushort *ussrc = (const GLushort *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLushort p = ussrc[i];
- SWAP2BYTE(p);
- rgba[i][rDst] = ((p ) & 0x1f) * rs;
- rgba[i][gDst] = ((p >> 5) & 0x3f) * gs;
- rgba[i][bDst] = ((p >> 11) ) * bs;
- rgba[i][aDst] = 1.0F;
- }
- }
- else {
- const GLushort *ussrc = (const GLushort *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLushort p = ussrc[i];
- rgba[i][rDst] = ((p ) & 0x1f) * rs;
- rgba[i][gDst] = ((p >> 5) & 0x3f) * gs;
- rgba[i][bDst] = ((p >> 11) ) * bs;
- rgba[i][aDst] = 1.0F;
- }
- }
- break;
- case GL_UNSIGNED_SHORT_4_4_4_4:
- if (!intFormat) {
- rs = gs = bs = as = 1.0F / 15.0F;
- }
- if (swapBytes) {
- const GLushort *ussrc = (const GLushort *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLushort p = ussrc[i];
- SWAP2BYTE(p);
- rgba[i][rDst] = ((p >> 12) ) * rs;
- rgba[i][gDst] = ((p >> 8) & 0xf) * gs;
- rgba[i][bDst] = ((p >> 4) & 0xf) * bs;
- rgba[i][aDst] = ((p ) & 0xf) * as;
- }
- }
- else {
- const GLushort *ussrc = (const GLushort *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLushort p = ussrc[i];
- rgba[i][rDst] = ((p >> 12) ) * rs;
- rgba[i][gDst] = ((p >> 8) & 0xf) * gs;
- rgba[i][bDst] = ((p >> 4) & 0xf) * bs;
- rgba[i][aDst] = ((p ) & 0xf) * as;
- }
- }
- break;
- case GL_UNSIGNED_SHORT_4_4_4_4_REV:
- if (!intFormat) {
- rs = gs = bs = as = 1.0F / 15.0F;
- }
- if (swapBytes) {
- const GLushort *ussrc = (const GLushort *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLushort p = ussrc[i];
- SWAP2BYTE(p);
- rgba[i][rDst] = ((p ) & 0xf) * rs;
- rgba[i][gDst] = ((p >> 4) & 0xf) * gs;
- rgba[i][bDst] = ((p >> 8) & 0xf) * bs;
- rgba[i][aDst] = ((p >> 12) ) * as;
- }
- }
- else {
- const GLushort *ussrc = (const GLushort *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLushort p = ussrc[i];
- rgba[i][rDst] = ((p ) & 0xf) * rs;
- rgba[i][gDst] = ((p >> 4) & 0xf) * gs;
- rgba[i][bDst] = ((p >> 8) & 0xf) * bs;
- rgba[i][aDst] = ((p >> 12) ) * as;
- }
- }
- break;
- case GL_UNSIGNED_SHORT_5_5_5_1:
- if (!intFormat) {
- rs = gs = bs = 1.0F / 31.0F;
- }
- if (swapBytes) {
- const GLushort *ussrc = (const GLushort *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLushort p = ussrc[i];
- SWAP2BYTE(p);
- rgba[i][rDst] = ((p >> 11) ) * rs;
- rgba[i][gDst] = ((p >> 6) & 0x1f) * gs;
- rgba[i][bDst] = ((p >> 1) & 0x1f) * bs;
- rgba[i][aDst] = ((p ) & 0x1) * as;
- }
- }
- else {
- const GLushort *ussrc = (const GLushort *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLushort p = ussrc[i];
- rgba[i][rDst] = ((p >> 11) ) * rs;
- rgba[i][gDst] = ((p >> 6) & 0x1f) * gs;
- rgba[i][bDst] = ((p >> 1) & 0x1f) * bs;
- rgba[i][aDst] = ((p ) & 0x1) * as;
- }
- }
- break;
- case GL_UNSIGNED_SHORT_1_5_5_5_REV:
- if (!intFormat) {
- rs = gs = bs = 1.0F / 31.0F;
- }
- if (swapBytes) {
- const GLushort *ussrc = (const GLushort *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLushort p = ussrc[i];
- SWAP2BYTE(p);
- rgba[i][rDst] = ((p ) & 0x1f) * rs;
- rgba[i][gDst] = ((p >> 5) & 0x1f) * gs;
- rgba[i][bDst] = ((p >> 10) & 0x1f) * bs;
- rgba[i][aDst] = ((p >> 15) ) * as;
- }
- }
- else {
- const GLushort *ussrc = (const GLushort *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLushort p = ussrc[i];
- rgba[i][rDst] = ((p ) & 0x1f) * rs;
- rgba[i][gDst] = ((p >> 5) & 0x1f) * gs;
- rgba[i][bDst] = ((p >> 10) & 0x1f) * bs;
- rgba[i][aDst] = ((p >> 15) ) * as;
- }
- }
- break;
- case GL_UNSIGNED_INT_8_8_8_8:
- if (swapBytes) {
- const GLuint *uisrc = (const GLuint *) src;
- GLuint i;
- if (intFormat) {
- for (i = 0; i < n; i ++) {
- GLuint p = uisrc[i];
- rgba[i][rDst] = (GLfloat) ((p ) & 0xff);
- rgba[i][gDst] = (GLfloat) ((p >> 8) & 0xff);
- rgba[i][bDst] = (GLfloat) ((p >> 16) & 0xff);
- rgba[i][aDst] = (GLfloat) ((p >> 24) );
- }
- }
- else {
- for (i = 0; i < n; i ++) {
- GLuint p = uisrc[i];
- rgba[i][rDst] = UBYTE_TO_FLOAT((p ) & 0xff);
- rgba[i][gDst] = UBYTE_TO_FLOAT((p >> 8) & 0xff);
- rgba[i][bDst] = UBYTE_TO_FLOAT((p >> 16) & 0xff);
- rgba[i][aDst] = UBYTE_TO_FLOAT((p >> 24) );
- }
- }
- }
- else {
- const GLuint *uisrc = (const GLuint *) src;
- GLuint i;
- if (intFormat) {
- for (i = 0; i < n; i ++) {
- GLuint p = uisrc[i];
- rgba[i][rDst] = (GLfloat) ((p >> 24) );
- rgba[i][gDst] = (GLfloat) ((p >> 16) & 0xff);
- rgba[i][bDst] = (GLfloat) ((p >> 8) & 0xff);
- rgba[i][aDst] = (GLfloat) ((p ) & 0xff);
- }
- }
- else {
- for (i = 0; i < n; i ++) {
- GLuint p = uisrc[i];
- rgba[i][rDst] = UBYTE_TO_FLOAT((p >> 24) );
- rgba[i][gDst] = UBYTE_TO_FLOAT((p >> 16) & 0xff);
- rgba[i][bDst] = UBYTE_TO_FLOAT((p >> 8) & 0xff);
- rgba[i][aDst] = UBYTE_TO_FLOAT((p ) & 0xff);
- }
- }
- }
- break;
- case GL_UNSIGNED_INT_8_8_8_8_REV:
- if (swapBytes) {
- const GLuint *uisrc = (const GLuint *) src;
- GLuint i;
- if (intFormat) {
- for (i = 0; i < n; i ++) {
- GLuint p = uisrc[i];
- rgba[i][rDst] = (GLfloat) ((p >> 24) );
- rgba[i][gDst] = (GLfloat) ((p >> 16) & 0xff);
- rgba[i][bDst] = (GLfloat) ((p >> 8) & 0xff);
- rgba[i][aDst] = (GLfloat) ((p ) & 0xff);
- }
- }
- else {
- for (i = 0; i < n; i ++) {
- GLuint p = uisrc[i];
- rgba[i][rDst] = UBYTE_TO_FLOAT((p >> 24) );
- rgba[i][gDst] = UBYTE_TO_FLOAT((p >> 16) & 0xff);
- rgba[i][bDst] = UBYTE_TO_FLOAT((p >> 8) & 0xff);
- rgba[i][aDst] = UBYTE_TO_FLOAT((p ) & 0xff);
- }
- }
- }
- else {
- const GLuint *uisrc = (const GLuint *) src;
- GLuint i;
- if (intFormat) {
- for (i = 0; i < n; i ++) {
- GLuint p = uisrc[i];
- rgba[i][rDst] = (GLfloat) ((p ) & 0xff);
- rgba[i][gDst] = (GLfloat) ((p >> 8) & 0xff);
- rgba[i][bDst] = (GLfloat) ((p >> 16) & 0xff);
- rgba[i][aDst] = (GLfloat) ((p >> 24) );
- }
- }
- else {
- for (i = 0; i < n; i ++) {
- GLuint p = uisrc[i];
- rgba[i][rDst] = UBYTE_TO_FLOAT((p ) & 0xff);
- rgba[i][gDst] = UBYTE_TO_FLOAT((p >> 8) & 0xff);
- rgba[i][bDst] = UBYTE_TO_FLOAT((p >> 16) & 0xff);
- rgba[i][aDst] = UBYTE_TO_FLOAT((p >> 24) );
- }
- }
- }
- break;
- case GL_UNSIGNED_INT_10_10_10_2:
- if (!intFormat) {
- rs = 1.0F / 1023.0F;
- gs = 1.0F / 1023.0F;
- bs = 1.0F / 1023.0F;
- as = 1.0F / 3.0F;
- }
- if (swapBytes) {
- const GLuint *uisrc = (const GLuint *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLuint p = uisrc[i];
- SWAP4BYTE(p);
- rgba[i][rDst] = ((p >> 22) ) * rs;
- rgba[i][gDst] = ((p >> 12) & 0x3ff) * gs;
- rgba[i][bDst] = ((p >> 2) & 0x3ff) * bs;
- rgba[i][aDst] = ((p ) & 0x3 ) * as;
- }
- }
- else {
- const GLuint *uisrc = (const GLuint *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLuint p = uisrc[i];
- rgba[i][rDst] = ((p >> 22) ) * rs;
- rgba[i][gDst] = ((p >> 12) & 0x3ff) * gs;
- rgba[i][bDst] = ((p >> 2) & 0x3ff) * bs;
- rgba[i][aDst] = ((p ) & 0x3 ) * as;
- }
- }
- break;
- case GL_UNSIGNED_INT_2_10_10_10_REV:
- if (!intFormat) {
- rs = 1.0F / 1023.0F;
- gs = 1.0F / 1023.0F;
- bs = 1.0F / 1023.0F;
- as = 1.0F / 3.0F;
- }
- if (swapBytes) {
- const GLuint *uisrc = (const GLuint *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLuint p = uisrc[i];
- SWAP4BYTE(p);
- rgba[i][rDst] = ((p ) & 0x3ff) * rs;
- rgba[i][gDst] = ((p >> 10) & 0x3ff) * gs;
- rgba[i][bDst] = ((p >> 20) & 0x3ff) * bs;
- if (aSrc < 0) {
- rgba[i][aDst] = 1.0F;
- } else {
- rgba[i][aDst] = (p >> 30) * as;
- }
- }
- }
- else {
- const GLuint *uisrc = (const GLuint *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLuint p = uisrc[i];
- rgba[i][rDst] = ((p ) & 0x3ff) * rs;
- rgba[i][gDst] = ((p >> 10) & 0x3ff) * gs;
- rgba[i][bDst] = ((p >> 20) & 0x3ff) * bs;
- if (aSrc < 0) {
- rgba[i][aDst] = 1.0F;
- } else {
- rgba[i][aDst] = (p >> 30) * as;
- }
- }
- }
- break;
- case GL_UNSIGNED_INT_5_9_9_9_REV:
- if (swapBytes) {
- const GLuint *uisrc = (const GLuint *) src;
- GLuint i;
- GLfloat f[3];
- for (i = 0; i < n; i ++) {
- GLuint p = uisrc[i];
- SWAP4BYTE(p);
- rgb9e5_to_float3(p, f);
- rgba[i][rDst] = f[0];
- rgba[i][gDst] = f[1];
- rgba[i][bDst] = f[2];
- rgba[i][aDst] = 1.0F;
- }
- }
- else {
- const GLuint *uisrc = (const GLuint *) src;
- GLuint i;
- GLfloat f[3];
- for (i = 0; i < n; i ++) {
- rgb9e5_to_float3(uisrc[i], f);
- rgba[i][rDst] = f[0];
- rgba[i][gDst] = f[1];
- rgba[i][bDst] = f[2];
- rgba[i][aDst] = 1.0F;
- }
- }
- break;
- case GL_UNSIGNED_INT_10F_11F_11F_REV:
- if (swapBytes) {
- const GLuint *uisrc = (const GLuint *) src;
- GLuint i;
- GLfloat f[3];
- for (i = 0; i < n; i ++) {
- GLuint p = uisrc[i];
- SWAP4BYTE(p);
- r11g11b10f_to_float3(p, f);
- rgba[i][rDst] = f[0];
- rgba[i][gDst] = f[1];
- rgba[i][bDst] = f[2];
- rgba[i][aDst] = 1.0F;
- }
- }
- else {
- const GLuint *uisrc = (const GLuint *) src;
- GLuint i;
- GLfloat f[3];
- for (i = 0; i < n; i ++) {
- r11g11b10f_to_float3(uisrc[i], f);
- rgba[i][rDst] = f[0];
- rgba[i][gDst] = f[1];
- rgba[i][bDst] = f[2];
- rgba[i][aDst] = 1.0F;
- }
- }
- break;
- default:
- _mesa_problem(NULL, "bad srcType in extract float data");
- break;
- }
-#undef PROCESS
-}
-
-
static inline GLuint
clamp_float_to_uint(GLfloat f)
{
}
-/**
- * Same as _mesa_unpack_color_span_ubyte(), but return GLfloat data
- * instead of GLubyte.
- */
-void
-_mesa_unpack_color_span_float( struct gl_context *ctx,
- GLuint n, GLenum dstFormat, GLfloat dest[],
- GLenum srcFormat, GLenum srcType,
- const GLvoid *source,
- const struct gl_pixelstore_attrib *srcPacking,
- GLbitfield transferOps )
-{
- ASSERT(dstFormat == GL_ALPHA ||
- dstFormat == GL_LUMINANCE ||
- dstFormat == GL_LUMINANCE_ALPHA ||
- dstFormat == GL_INTENSITY ||
- dstFormat == GL_RED ||
- dstFormat == GL_RG ||
- dstFormat == GL_RGB ||
- dstFormat == GL_RGBA);
-
- ASSERT(srcFormat == GL_RED ||
- srcFormat == GL_GREEN ||
- srcFormat == GL_BLUE ||
- srcFormat == GL_ALPHA ||
- srcFormat == GL_LUMINANCE ||
- srcFormat == GL_LUMINANCE_ALPHA ||
- srcFormat == GL_INTENSITY ||
- srcFormat == GL_RG ||
- srcFormat == GL_RGB ||
- srcFormat == GL_BGR ||
- srcFormat == GL_RGBA ||
- srcFormat == GL_BGRA ||
- srcFormat == GL_ABGR_EXT ||
- srcFormat == GL_RED_INTEGER_EXT ||
- srcFormat == GL_GREEN_INTEGER_EXT ||
- srcFormat == GL_BLUE_INTEGER_EXT ||
- srcFormat == GL_ALPHA_INTEGER_EXT ||
- srcFormat == GL_RG_INTEGER ||
- srcFormat == GL_RGB_INTEGER_EXT ||
- srcFormat == GL_RGBA_INTEGER_EXT ||
- srcFormat == GL_BGR_INTEGER_EXT ||
- srcFormat == GL_BGRA_INTEGER_EXT ||
- srcFormat == GL_LUMINANCE_INTEGER_EXT ||
- srcFormat == GL_LUMINANCE_ALPHA_INTEGER_EXT ||
- srcFormat == GL_COLOR_INDEX);
-
- ASSERT(srcType == GL_BITMAP ||
- srcType == GL_UNSIGNED_BYTE ||
- srcType == GL_BYTE ||
- srcType == GL_UNSIGNED_SHORT ||
- srcType == GL_SHORT ||
- srcType == GL_UNSIGNED_INT ||
- srcType == GL_INT ||
- srcType == GL_HALF_FLOAT_ARB ||
- srcType == GL_FLOAT ||
- srcType == GL_UNSIGNED_BYTE_3_3_2 ||
- srcType == GL_UNSIGNED_BYTE_2_3_3_REV ||
- srcType == GL_UNSIGNED_SHORT_5_6_5 ||
- srcType == GL_UNSIGNED_SHORT_5_6_5_REV ||
- srcType == GL_UNSIGNED_SHORT_4_4_4_4 ||
- srcType == GL_UNSIGNED_SHORT_4_4_4_4_REV ||
- srcType == GL_UNSIGNED_SHORT_5_5_5_1 ||
- srcType == GL_UNSIGNED_SHORT_1_5_5_5_REV ||
- srcType == GL_UNSIGNED_INT_8_8_8_8 ||
- srcType == GL_UNSIGNED_INT_8_8_8_8_REV ||
- srcType == GL_UNSIGNED_INT_10_10_10_2 ||
- srcType == GL_UNSIGNED_INT_2_10_10_10_REV ||
- srcType == GL_UNSIGNED_INT_5_9_9_9_REV ||
- srcType == GL_UNSIGNED_INT_10F_11F_11F_REV);
-
- /* general solution, no special cases, yet */
- {
- GLint dstComponents;
- GLint rDst, gDst, bDst, aDst, lDst, iDst;
- GLfloat (*rgba)[4] = malloc(4 * n * sizeof(GLfloat));
- GLboolean intFormat = _mesa_is_enum_format_integer(srcFormat);
-
- if (!rgba) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel unpacking");
- return;
- }
-
- dstComponents = _mesa_components_in_format( dstFormat );
- /* source & dest image formats should have been error checked by now */
- assert(dstComponents > 0);
-
- /* EXT_texture_integer specifies no transfer ops on integer
- * types in the resolved issues section. Just set them to 0
- * for integer surfaces.
- */
- if (intFormat)
- transferOps = 0;
-
- /*
- * Extract image data and convert to RGBA floats
- */
- if (srcFormat == GL_COLOR_INDEX) {
- GLuint *indexes = malloc(n * sizeof(GLuint));
-
- if (!indexes) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel unpacking");
- free(rgba);
- return;
- }
-
- extract_uint_indexes(n, indexes, srcFormat, srcType, source,
- srcPacking);
-
- /* Convert indexes to RGBA */
- if (transferOps & IMAGE_SHIFT_OFFSET_BIT) {
- _mesa_shift_and_offset_ci(ctx, n, indexes);
- }
- _mesa_map_ci_to_rgba(ctx, n, indexes, rgba);
-
- /* Don't do RGBA scale/bias or RGBA->RGBA mapping if starting
- * with color indexes.
- */
- transferOps &= ~(IMAGE_SCALE_BIAS_BIT | IMAGE_MAP_COLOR_BIT);
-
- free(indexes);
- }
- else {
- /* non-color index data */
- extract_float_rgba(n, rgba, srcFormat, srcType, source,
- srcPacking->SwapBytes);
- }
-
- if (transferOps) {
- _mesa_apply_rgba_transfer_ops(ctx, transferOps, n, rgba);
- }
-
- get_component_indexes(dstFormat,
- &rDst, &gDst, &bDst, &aDst, &lDst, &iDst);
-
- /* Now pack results in the requested dstFormat */
- if (rDst >= 0) {
- GLfloat *dst = dest;
- GLuint i;
- for (i = 0; i < n; i++) {
- dst[rDst] = rgba[i][RCOMP];
- dst += dstComponents;
- }
- }
-
- if (gDst >= 0) {
- GLfloat *dst = dest;
- GLuint i;
- for (i = 0; i < n; i++) {
- dst[gDst] = rgba[i][GCOMP];
- dst += dstComponents;
- }
- }
-
- if (bDst >= 0) {
- GLfloat *dst = dest;
- GLuint i;
- for (i = 0; i < n; i++) {
- dst[bDst] = rgba[i][BCOMP];
- dst += dstComponents;
- }
- }
-
- if (aDst >= 0) {
- GLfloat *dst = dest;
- GLuint i;
- for (i = 0; i < n; i++) {
- dst[aDst] = rgba[i][ACOMP];
- dst += dstComponents;
- }
- }
-
- if (iDst >= 0) {
- GLfloat *dst = dest;
- GLuint i;
- assert(iDst == 0);
- assert(dstComponents == 1);
- for (i = 0; i < n; i++) {
- /* Intensity comes from red channel */
- dst[i] = rgba[i][RCOMP];
- }
- }
-
- if (lDst >= 0) {
- GLfloat *dst = dest;
- GLuint i;
- assert(lDst == 0);
- for (i = 0; i < n; i++) {
- /* Luminance comes from red channel */
- dst[0] = rgba[i][RCOMP];
- dst += dstComponents;
- }
- }
-
- free(rgba);
- }
-}
-
-
/*
* Unpack a row of color index data from a client buffer according to
* the pixel unpacking parameters.
-
/**
* Unpack image data. Apply byte swapping, byte flipping (bitmap).
* Return all image data in a contiguous block. This is used when we
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