#endif
+#include "errors.h"
#include "glheader.h"
-#include "colormac.h"
#include "enums.h"
#include "image.h"
-#include "imports.h"
+
#include "macros.h"
#include "mtypes.h"
#include "pack.h"
#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"
/**
_mesa_unpack_polygon_stipple( const GLubyte *pattern, GLuint dest[32],
const struct gl_pixelstore_attrib *unpacking )
{
- GLubyte *ptrn = (GLubyte *) _mesa_unpack_bitmap(32, 32, pattern, unpacking);
+ GLubyte *ptrn = (GLubyte *) _mesa_unpack_image(2, 32, 32, 1, GL_COLOR_INDEX,
+ GL_BITMAP, pattern, unpacking);
if (ptrn) {
/* Convert pattern from GLubytes to GLuints and handle big/little
* endian differences
}
-/*
- * Unpack bitmap data. Resulting data will be in most-significant-bit-first
- * order with row alignment = 1 byte.
- */
-GLvoid *
-_mesa_unpack_bitmap( GLint width, GLint height, const GLubyte *pixels,
- const struct gl_pixelstore_attrib *packing )
-{
- GLint bytes, row, width_in_bytes;
- GLubyte *buffer, *dst;
-
- if (!pixels)
- return NULL;
-
- /* Alloc dest storage */
- bytes = ((width + 7) / 8 * height);
- buffer = malloc( bytes );
- if (!buffer)
- return NULL;
-
- width_in_bytes = CEILING( width, 8 );
- dst = buffer;
- for (row = 0; row < height; row++) {
- const GLubyte *src = (const GLubyte *)
- _mesa_image_address2d(packing, pixels, width, height,
- GL_COLOR_INDEX, GL_BITMAP, row, 0);
- if (!src) {
- free(buffer);
- return NULL;
- }
-
- if ((packing->SkipPixels & 7) == 0) {
- memcpy( dst, src, width_in_bytes );
- if (packing->LsbFirst) {
- flip_bytes( dst, width_in_bytes );
- }
- }
- else {
- /* handling SkipPixels is a bit tricky (no pun intended!) */
- GLint i;
- if (packing->LsbFirst) {
- GLubyte srcMask = 1 << (packing->SkipPixels & 0x7);
- GLubyte dstMask = 128;
- const GLubyte *s = src;
- GLubyte *d = dst;
- *d = 0;
- for (i = 0; i < width; i++) {
- if (*s & srcMask) {
- *d |= dstMask;
- }
- if (srcMask == 128) {
- srcMask = 1;
- s++;
- }
- else {
- srcMask = srcMask << 1;
- }
- if (dstMask == 1) {
- dstMask = 128;
- d++;
- *d = 0;
- }
- else {
- dstMask = dstMask >> 1;
- }
- }
- }
- else {
- GLubyte srcMask = 128 >> (packing->SkipPixels & 0x7);
- GLubyte dstMask = 128;
- const GLubyte *s = src;
- GLubyte *d = dst;
- *d = 0;
- for (i = 0; i < width; i++) {
- if (*s & srcMask) {
- *d |= dstMask;
- }
- if (srcMask == 1) {
- srcMask = 128;
- s++;
- }
- else {
- srcMask = srcMask >> 1;
- }
- if (dstMask == 1) {
- dstMask = 128;
- d++;
- *d = 0;
- }
- else {
- dstMask = dstMask >> 1;
- }
- }
- }
- }
- dst += width_in_bytes;
- }
-
- return buffer;
-}
-
-
/*
* Pack bitmap data.
*/
if (!source)
return;
- width_in_bytes = CEILING( width, 8 );
+ width_in_bytes = DIV_ROUND_UP( width, 8 );
src = source;
for (row = 0; row < height; row++) {
GLubyte *dst = (GLubyte *) _mesa_image_address2d(packing, dest,
}
-/**
- * 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;
- case GL_DU8DV8_ATI:
- case GL_DUDV_ATI:
- *redIndex = 0;
- *greenIndex = 1;
- break;
- default:
- assert(0 && "bad format in get_component_indexes()");
+#define SWAP2BYTE(VALUE) \
+ { \
+ GLubyte *bytes = (GLubyte *) &(VALUE); \
+ GLubyte tmp = bytes[0]; \
+ bytes[0] = bytes[1]; \
+ bytes[1] = tmp; \
}
-}
-
-
-/**
- * For small integer types, return the min and max possible values.
- * Used for clamping floats to unscaled integer types.
- * \return GL_TRUE if type is handled, GL_FALSE otherwise.
- */
-static GLboolean
-get_type_min_max(GLenum type, GLfloat *min, GLfloat *max)
-{
- switch (type) {
- case GL_BYTE:
- *min = -128.0;
- *max = 127.0;
- return GL_TRUE;
- case GL_UNSIGNED_BYTE:
- *min = 0.0;
- *max = 255.0;
- return GL_TRUE;
- case GL_SHORT:
- *min = -32768.0;
- *max = 32767.0;
- return GL_TRUE;
- case GL_UNSIGNED_SHORT:
- *min = 0.0;
- *max = 65535.0;
- return GL_TRUE;
- default:
- return GL_FALSE;
+#define SWAP4BYTE(VALUE) \
+ { \
+ GLubyte *bytes = (GLubyte *) &(VALUE); \
+ GLubyte tmp = bytes[0]; \
+ bytes[0] = bytes[3]; \
+ bytes[3] = tmp; \
+ tmp = bytes[1]; \
+ bytes[1] = bytes[2]; \
+ bytes[2] = tmp; \
}
-}
-
-/* Customization of unsigned integer packing.
- */
-#define SRC_TYPE GLuint
-
-#define DST_TYPE GLuint
-#define SRC_CONVERT(x) (x)
-#define FN_NAME pack_uint_from_uint_rgba
-#include "pack_tmp.h"
-#undef DST_TYPE
-#undef SRC_CONVERT
-#undef FN_NAME
-
-#define DST_TYPE GLint
-#define SRC_CONVERT(x) MIN2(x, 0x7fffffff)
-#define FN_NAME pack_int_from_uint_rgba
-#include "pack_tmp.h"
-#undef DST_TYPE
-#undef SRC_CONVERT
-#undef FN_NAME
-
-#define DST_TYPE GLushort
-#define SRC_CONVERT(x) MIN2(x, 0xffff)
-#define FN_NAME pack_ushort_from_uint_rgba
-#include "pack_tmp.h"
-#undef DST_TYPE
-#undef SRC_CONVERT
-#undef FN_NAME
-#define DST_TYPE GLshort
-#define SRC_CONVERT(x) CLAMP((int)x, -32768, 32767)
-#define FN_NAME pack_short_from_uint_rgba
-#include "pack_tmp.h"
-#undef DST_TYPE
-#undef SRC_CONVERT
-#undef FN_NAME
-
-#define DST_TYPE GLubyte
-#define SRC_CONVERT(x) MIN2(x, 0xff)
-#define FN_NAME pack_ubyte_from_uint_rgba
-#include "pack_tmp.h"
-#undef DST_TYPE
-#undef SRC_CONVERT
-#undef FN_NAME
-
-#define DST_TYPE GLbyte
-#define SRC_CONVERT(x) CLAMP((int)x, -128, 127)
-#define FN_NAME pack_byte_from_uint_rgba
-#include "pack_tmp.h"
-#undef DST_TYPE
-#undef SRC_CONVERT
-#undef FN_NAME
-
-#undef SRC_TYPE
static void
-_pack_rgba_span_from_uints_problem(struct gl_context *ctx,
- GLenum dstFormat, GLenum dstType)
+extract_uint_indexes(GLuint n, GLuint indexes[],
+ GLenum srcFormat, GLenum srcType, const GLvoid *src,
+ const struct gl_pixelstore_attrib *unpack )
{
- _mesa_problem(ctx,
- "Unsupported type (%s) / format (%s) "
- "in _mesa_pack_rgba_span_from_uints",
- _mesa_lookup_enum_by_nr(dstType),
- _mesa_lookup_enum_by_nr(dstFormat));
-}
+ assert(srcFormat == GL_COLOR_INDEX || srcFormat == GL_STENCIL_INDEX);
-void
-_mesa_pack_rgba_span_from_uints(struct gl_context *ctx, GLuint n, GLuint rgba[][4],
- GLenum dstFormat, GLenum dstType,
- GLvoid *dstAddr)
-{
- GLuint i;
+ 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_UNSIGNED_INT_24_8_EXT ||
+ srcType == GL_HALF_FLOAT_ARB ||
+ srcType == GL_HALF_FLOAT_OES ||
+ srcType == GL_FLOAT ||
+ srcType == GL_FLOAT_32_UNSIGNED_INT_24_8_REV);
- switch(dstType) {
- case GL_UNSIGNED_INT:
- pack_uint_from_uint_rgba(ctx, dstAddr, dstFormat, rgba, n);
- break;
- case GL_INT:
- pack_int_from_uint_rgba(ctx, dstAddr, dstFormat, rgba, n);
- break;
- case GL_UNSIGNED_SHORT:
- pack_ushort_from_uint_rgba(ctx, dstAddr, dstFormat, rgba, n);
- break;
- case GL_SHORT:
- pack_short_from_uint_rgba(ctx, dstAddr, dstFormat, rgba, n);
- break;
- case GL_UNSIGNED_BYTE:
- pack_ubyte_from_uint_rgba(ctx, dstAddr, dstFormat, rgba, n);
- break;
- case GL_BYTE:
- pack_byte_from_uint_rgba(ctx, dstAddr, dstFormat, rgba, n);
- break;
- case GL_UNSIGNED_BYTE_3_3_2:
- if ((dstFormat == GL_RGB) || (dstFormat == GL_RGB_INTEGER)) {
- GLubyte *dst = (GLubyte *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (MIN2(rgba[i][RCOMP], 7) << 5)
- | (MIN2(rgba[i][GCOMP], 7) << 2)
- | (MIN2(rgba[i][BCOMP], 3) );
- }
- } else {
- _pack_rgba_span_from_uints_problem(ctx, dstFormat, dstType);
- }
- break;
- case GL_UNSIGNED_BYTE_2_3_3_REV:
- if ((dstFormat == GL_RGB) || (dstFormat == GL_RGB_INTEGER)) {
- GLubyte *dst = (GLubyte *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (MIN2(rgba[i][RCOMP], 7) )
- | (MIN2(rgba[i][GCOMP], 7) << 3)
- | (MIN2(rgba[i][BCOMP], 3) << 6);
- }
- } else {
- _pack_rgba_span_from_uints_problem(ctx, dstFormat, dstType);
- }
- break;
- case GL_UNSIGNED_SHORT_5_6_5:
- if ((dstFormat == GL_RGB) || (dstFormat == GL_RGB_INTEGER)) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (MIN2(rgba[i][RCOMP], 31) << 11)
- | (MIN2(rgba[i][GCOMP], 63) << 5)
- | (MIN2(rgba[i][BCOMP], 31) );
- }
- } else {
- _pack_rgba_span_from_uints_problem(ctx, dstFormat, dstType);
- }
- break;
- case GL_UNSIGNED_SHORT_5_6_5_REV:
- if ((dstFormat == GL_RGB) || (dstFormat == GL_RGB_INTEGER)) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (MIN2(rgba[i][RCOMP], 31) )
- | (MIN2(rgba[i][GCOMP], 63) << 5)
- | (MIN2(rgba[i][BCOMP], 31) << 11);
- }
- } else {
- _pack_rgba_span_from_uints_problem(ctx, dstFormat, dstType);
- }
- break;
- case GL_UNSIGNED_SHORT_4_4_4_4:
- if ((dstFormat == GL_RGBA) || (dstFormat == GL_RGBA_INTEGER_EXT)) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (MIN2(rgba[i][RCOMP], 15) << 12)
- | (MIN2(rgba[i][GCOMP], 15) << 8)
- | (MIN2(rgba[i][BCOMP], 15) << 4)
- | (MIN2(rgba[i][ACOMP], 15) );
+ switch (srcType) {
+ case GL_BITMAP:
+ {
+ GLubyte *ubsrc = (GLubyte *) src;
+ if (unpack->LsbFirst) {
+ GLubyte mask = 1 << (unpack->SkipPixels & 0x7);
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ indexes[i] = (*ubsrc & mask) ? 1 : 0;
+ if (mask == 128) {
+ mask = 1;
+ ubsrc++;
+ }
+ else {
+ mask = mask << 1;
+ }
+ }
+ }
+ else {
+ GLubyte mask = 128 >> (unpack->SkipPixels & 0x7);
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ indexes[i] = (*ubsrc & mask) ? 1 : 0;
+ if (mask == 1) {
+ mask = 128;
+ ubsrc++;
+ }
+ else {
+ mask = mask >> 1;
+ }
+ }
+ }
}
- }
- else if ((dstFormat == GL_BGRA) || (dstFormat == GL_BGRA_INTEGER)) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (MIN2(rgba[i][BCOMP], 15) << 12)
- | (MIN2(rgba[i][GCOMP], 15) << 8)
- | (MIN2(rgba[i][RCOMP], 15) << 4)
- | (MIN2(rgba[i][ACOMP], 15) );
+ break;
+ case GL_UNSIGNED_BYTE:
+ {
+ GLuint i;
+ const GLubyte *s = (const GLubyte *) src;
+ for (i = 0; i < n; i++)
+ indexes[i] = s[i];
}
- }
- else if (dstFormat == GL_ABGR_EXT) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (MIN2(rgba[i][ACOMP], 15) << 12)
- | (MIN2(rgba[i][BCOMP], 15) << 8)
- | (MIN2(rgba[i][GCOMP], 15) << 4)
- | (MIN2(rgba[i][RCOMP], 15) );
+ break;
+ case GL_BYTE:
+ {
+ GLuint i;
+ const GLbyte *s = (const GLbyte *) src;
+ for (i = 0; i < n; i++)
+ indexes[i] = s[i];
}
- } else {
- _pack_rgba_span_from_uints_problem(ctx, dstFormat, dstType);
- }
- break;
- case GL_UNSIGNED_SHORT_4_4_4_4_REV:
- if ((dstFormat == GL_RGBA) || (dstFormat == GL_RGBA_INTEGER_EXT)) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (MIN2(rgba[i][RCOMP], 15) )
- | (MIN2(rgba[i][GCOMP], 15) << 4)
- | (MIN2(rgba[i][BCOMP], 15) << 8)
- | (MIN2(rgba[i][ACOMP], 15) << 12);
+ break;
+ case GL_UNSIGNED_SHORT:
+ {
+ GLuint i;
+ const GLushort *s = (const GLushort *) src;
+ if (unpack->SwapBytes) {
+ for (i = 0; i < n; i++) {
+ GLushort value = s[i];
+ SWAP2BYTE(value);
+ indexes[i] = value;
+ }
+ }
+ else {
+ for (i = 0; i < n; i++)
+ indexes[i] = s[i];
+ }
}
- }
- else if ((dstFormat == GL_BGRA) || (dstFormat == GL_BGRA_INTEGER)) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (MIN2(rgba[i][BCOMP], 15) )
- | (MIN2(rgba[i][GCOMP], 15) << 4)
- | (MIN2(rgba[i][RCOMP], 15) << 8)
- | (MIN2(rgba[i][ACOMP], 15) << 12);
- }
- }
- else if (dstFormat == GL_ABGR_EXT) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (MIN2(rgba[i][ACOMP], 15) )
- | (MIN2(rgba[i][BCOMP], 15) << 4)
- | (MIN2(rgba[i][GCOMP], 15) << 8)
- | (MIN2(rgba[i][RCOMP], 15) << 12);
- }
- } else {
- _pack_rgba_span_from_uints_problem(ctx, dstFormat, dstType);
- }
- break;
- case GL_UNSIGNED_SHORT_5_5_5_1:
- if ((dstFormat == GL_RGBA) || (dstFormat == GL_RGBA_INTEGER_EXT)) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (MIN2(rgba[i][RCOMP], 31) << 11)
- | (MIN2(rgba[i][GCOMP], 31) << 6)
- | (MIN2(rgba[i][BCOMP], 31) << 1)
- | (MIN2(rgba[i][ACOMP], 1) );
- }
- }
- else if ((dstFormat == GL_BGRA) || (dstFormat == GL_BGRA_INTEGER)) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (MIN2(rgba[i][BCOMP], 31) << 11)
- | (MIN2(rgba[i][GCOMP], 31) << 6)
- | (MIN2(rgba[i][RCOMP], 31) << 1)
- | (MIN2(rgba[i][ACOMP], 1) );
- }
- }
- else if (dstFormat == GL_ABGR_EXT) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (MIN2(rgba[i][ACOMP], 31) << 11)
- | (MIN2(rgba[i][BCOMP], 31) << 6)
- | (MIN2(rgba[i][GCOMP], 31) << 1)
- | (MIN2(rgba[i][RCOMP], 1) );
- }
- } else {
- _pack_rgba_span_from_uints_problem(ctx, dstFormat, dstType);
- }
- break;
- case GL_UNSIGNED_SHORT_1_5_5_5_REV:
- if ((dstFormat == GL_RGBA) || (dstFormat == GL_RGBA_INTEGER_EXT)) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (MIN2(rgba[i][RCOMP], 31) )
- | (MIN2(rgba[i][GCOMP], 31) << 5)
- | (MIN2(rgba[i][BCOMP], 31) << 10)
- | (MIN2(rgba[i][ACOMP], 1) << 15);
- }
- }
- else if ((dstFormat == GL_BGRA) || (dstFormat == GL_BGRA_INTEGER)) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (MIN2(rgba[i][BCOMP], 31) )
- | (MIN2(rgba[i][GCOMP], 31) << 5)
- | (MIN2(rgba[i][RCOMP], 31) << 10)
- | (MIN2(rgba[i][ACOMP], 1) << 15);
- }
- }
- else if (dstFormat == GL_ABGR_EXT) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (MIN2(rgba[i][ACOMP], 31) )
- | (MIN2(rgba[i][BCOMP], 31) << 5)
- | (MIN2(rgba[i][GCOMP], 31) << 10)
- | (MIN2(rgba[i][RCOMP], 1) << 15);
- }
- } else {
- _pack_rgba_span_from_uints_problem(ctx, dstFormat, dstType);
- }
- break;
- case GL_UNSIGNED_INT_8_8_8_8:
- if ((dstFormat == GL_RGBA) || (dstFormat == GL_RGBA_INTEGER_EXT)) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (MIN2(rgba[i][RCOMP], 255) << 24)
- | (MIN2(rgba[i][GCOMP], 255) << 16)
- | (MIN2(rgba[i][BCOMP], 255) << 8)
- | (MIN2(rgba[i][ACOMP], 255) );
- }
- }
- else if ((dstFormat == GL_BGRA) || (dstFormat == GL_BGRA_INTEGER)) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (MIN2(rgba[i][BCOMP], 255) << 24)
- | (MIN2(rgba[i][GCOMP], 255) << 16)
- | (MIN2(rgba[i][RCOMP], 255) << 8)
- | (MIN2(rgba[i][ACOMP], 255) );
- }
- }
- else if (dstFormat == GL_ABGR_EXT) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (MIN2(rgba[i][ACOMP], 255) << 24)
- | (MIN2(rgba[i][BCOMP], 255) << 16)
- | (MIN2(rgba[i][GCOMP], 255) << 8)
- | (MIN2(rgba[i][RCOMP], 255) );
- }
- } else {
- _pack_rgba_span_from_uints_problem(ctx, dstFormat, dstType);
- }
- break;
- case GL_UNSIGNED_INT_8_8_8_8_REV:
- if ((dstFormat == GL_RGBA) || (dstFormat == GL_RGBA_INTEGER_EXT)) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (MIN2(rgba[i][RCOMP], 255) )
- | (MIN2(rgba[i][GCOMP], 255) << 8)
- | (MIN2(rgba[i][BCOMP], 255) << 16)
- | (MIN2(rgba[i][ACOMP], 255) << 24);
- }
- }
- else if ((dstFormat == GL_BGRA) || (dstFormat == GL_BGRA_INTEGER)) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (MIN2(rgba[i][BCOMP], 255) )
- | (MIN2(rgba[i][GCOMP], 255) << 8)
- | (MIN2(rgba[i][RCOMP], 255) << 16)
- | (MIN2(rgba[i][ACOMP], 255) << 24);
- }
- }
- else if (dstFormat == GL_ABGR_EXT) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (MIN2(rgba[i][ACOMP], 255) )
- | (MIN2(rgba[i][BCOMP], 255) << 8)
- | (MIN2(rgba[i][GCOMP], 255) << 16)
- | (MIN2(rgba[i][RCOMP], 255) << 24);
- }
- } else {
- _pack_rgba_span_from_uints_problem(ctx, dstFormat, dstType);
- }
- break;
- case GL_UNSIGNED_INT_10_10_10_2:
- if ((dstFormat == GL_RGBA) || (dstFormat == GL_RGBA_INTEGER_EXT)) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (MIN2(rgba[i][RCOMP], 1023) << 22)
- | (MIN2(rgba[i][GCOMP], 1023) << 12)
- | (MIN2(rgba[i][BCOMP], 1023) << 2)
- | (MIN2(rgba[i][ACOMP], 3) );
- }
- }
- else if ((dstFormat == GL_BGRA) || (dstFormat == GL_BGRA_INTEGER)) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (MIN2(rgba[i][BCOMP], 1023) << 22)
- | (MIN2(rgba[i][GCOMP], 1023) << 12)
- | (MIN2(rgba[i][RCOMP], 1023) << 2)
- | (MIN2(rgba[i][ACOMP], 3) );
- }
- }
- else if (dstFormat == GL_ABGR_EXT) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (MIN2(rgba[i][ACOMP], 1023) << 22)
- | (MIN2(rgba[i][BCOMP], 1023) << 12)
- | (MIN2(rgba[i][GCOMP], 1023) << 2)
- | (MIN2(rgba[i][RCOMP], 3) );
- }
- } else {
- _pack_rgba_span_from_uints_problem(ctx, dstFormat, dstType);
- }
- break;
- case GL_UNSIGNED_INT_2_10_10_10_REV:
- if ((dstFormat == GL_RGBA) || (dstFormat == GL_RGBA_INTEGER_EXT)) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (MIN2(rgba[i][RCOMP], 1023) )
- | (MIN2(rgba[i][GCOMP], 1023) << 10)
- | (MIN2(rgba[i][BCOMP], 1023) << 20)
- | (MIN2(rgba[i][ACOMP], 3) << 30);
- }
- }
- else if ((dstFormat == GL_BGRA) || (dstFormat == GL_BGRA_INTEGER)) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (MIN2(rgba[i][BCOMP], 1023) )
- | (MIN2(rgba[i][GCOMP], 1023) << 10)
- | (MIN2(rgba[i][RCOMP], 1023) << 20)
- | (MIN2(rgba[i][ACOMP], 3) << 30);
- }
- }
- else if (dstFormat == GL_ABGR_EXT) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (MIN2(rgba[i][ACOMP], 1023) )
- | (MIN2(rgba[i][BCOMP], 1023) << 10)
- | (MIN2(rgba[i][GCOMP], 1023) << 20)
- | (MIN2(rgba[i][RCOMP], 3) << 30);
- }
- } else {
- _pack_rgba_span_from_uints_problem(ctx, dstFormat, dstType);
- }
- break;
- default:
- _pack_rgba_span_from_uints_problem(ctx, dstFormat, dstType);
- return;
- }
-}
-
-
-/* Customization of signed integer packing.
- */
-#define SRC_TYPE GLint
-
-#define DST_TYPE GLuint
-#define SRC_CONVERT(x) MAX2(x, 0)
-#define FN_NAME pack_uint_from_int_rgba
-#include "pack_tmp.h"
-#undef DST_TYPE
-#undef SRC_CONVERT
-#undef FN_NAME
-
-#define DST_TYPE GLushort
-#define SRC_CONVERT(x) MAX2(x, 0)
-#define FN_NAME pack_ushort_from_int_rgba
-#include "pack_tmp.h"
-#undef DST_TYPE
-#undef SRC_CONVERT
-#undef FN_NAME
-
-#define DST_TYPE GLshort
-#define SRC_CONVERT(x) CLAMP(x, -0x8000, 0x7fff)
-#define FN_NAME pack_short_from_int_rgba
-#include "pack_tmp.h"
-#undef DST_TYPE
-#undef SRC_CONVERT
-#undef FN_NAME
-
-#define DST_TYPE GLubyte
-#define SRC_CONVERT(x) MAX2(x, 0)
-#define FN_NAME pack_ubyte_from_int_rgba
-#include "pack_tmp.h"
-#undef DST_TYPE
-#undef SRC_CONVERT
-#undef FN_NAME
-
-#define DST_TYPE GLbyte
-#define SRC_CONVERT(x) CLAMP(x, -0x80, 0x7f)
-#define FN_NAME pack_byte_from_int_rgba
-#include "pack_tmp.h"
-#undef DST_TYPE
-#undef SRC_CONVERT
-#undef FN_NAME
-
-#undef SRC_TYPE
-
-static void
-_pack_rgba_span_from_ints_problem(struct gl_context *ctx,
- GLenum dstFormat, GLenum dstType)
-{
- _mesa_problem(ctx,
- "Unsupported type (%s) / format (%s) "
- "in _mesa_pack_rgba_span_from_ints",
- _mesa_lookup_enum_by_nr(dstType),
- _mesa_lookup_enum_by_nr(dstFormat));
-}
-
-void
-_mesa_pack_rgba_span_from_ints(struct gl_context *ctx, GLuint n, GLint rgba[][4],
- GLenum dstFormat, GLenum dstType,
- GLvoid *dstAddr)
-{
- GLuint i;
-
- switch(dstType) {
- case GL_UNSIGNED_INT:
- pack_uint_from_int_rgba(ctx, dstAddr, dstFormat, rgba, n);
- break;
- case GL_INT:
- /* No conversion necessary. */
- pack_uint_from_uint_rgba(ctx, dstAddr, dstFormat, (GLuint (*)[4]) rgba, n);
- break;
- case GL_UNSIGNED_SHORT:
- pack_ushort_from_int_rgba(ctx, dstAddr, dstFormat, rgba, n);
- break;
- case GL_SHORT:
- pack_short_from_int_rgba(ctx, dstAddr, dstFormat, rgba, n);
- break;
- case GL_UNSIGNED_BYTE:
- pack_ubyte_from_int_rgba(ctx, dstAddr, dstFormat, rgba, n);
- break;
- case GL_BYTE:
- pack_byte_from_int_rgba(ctx, dstAddr, dstFormat, rgba, n);
- break;
- case GL_UNSIGNED_BYTE_3_3_2:
- if ((dstFormat == GL_RGB) || (dstFormat == GL_RGB_INTEGER)) {
- GLubyte *dst = (GLubyte *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (CLAMP(rgba[i][RCOMP], 0, 7) << 5)
- | (CLAMP(rgba[i][GCOMP], 0, 7) << 2)
- | (CLAMP(rgba[i][BCOMP], 0, 3) );
- }
- } else {
- _pack_rgba_span_from_ints_problem(ctx, dstFormat, dstType);
- }
- break;
- case GL_UNSIGNED_BYTE_2_3_3_REV:
- if ((dstFormat == GL_RGB) || (dstFormat == GL_RGB_INTEGER)) {
- GLubyte *dst = (GLubyte *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (CLAMP(rgba[i][RCOMP], 0, 7) )
- | (CLAMP(rgba[i][GCOMP], 0, 7) << 3)
- | (CLAMP(rgba[i][BCOMP], 0, 3) << 6);
- }
- } else {
- _pack_rgba_span_from_ints_problem(ctx, dstFormat, dstType);
- }
- break;
- case GL_UNSIGNED_SHORT_5_6_5:
- if ((dstFormat == GL_RGB) || (dstFormat == GL_RGB_INTEGER)) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (CLAMP(rgba[i][RCOMP], 0, 31) << 11)
- | (CLAMP(rgba[i][GCOMP], 0, 63) << 5)
- | (CLAMP(rgba[i][BCOMP], 0, 31) );
- }
- } else {
- _pack_rgba_span_from_ints_problem(ctx, dstFormat, dstType);
- }
- break;
- case GL_UNSIGNED_SHORT_5_6_5_REV:
- if ((dstFormat == GL_RGB) || (dstFormat == GL_RGB_INTEGER)) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (CLAMP(rgba[i][RCOMP], 0, 31) )
- | (CLAMP(rgba[i][GCOMP], 0, 63) << 5)
- | (CLAMP(rgba[i][BCOMP], 0, 31) << 11);
- }
- } else {
- _pack_rgba_span_from_ints_problem(ctx, dstFormat, dstType);
- }
- break;
- case GL_UNSIGNED_SHORT_4_4_4_4:
- if ((dstFormat == GL_RGBA) || (dstFormat == GL_RGBA_INTEGER_EXT)) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (CLAMP(rgba[i][RCOMP], 0, 15) << 12)
- | (CLAMP(rgba[i][GCOMP], 0, 15) << 8)
- | (CLAMP(rgba[i][BCOMP], 0, 15) << 4)
- | (CLAMP(rgba[i][ACOMP], 0, 15) );
- }
- }
- else if ((dstFormat == GL_BGRA) || (dstFormat == GL_BGRA_INTEGER)) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (CLAMP(rgba[i][BCOMP], 0, 15) << 12)
- | (CLAMP(rgba[i][GCOMP], 0, 15) << 8)
- | (CLAMP(rgba[i][RCOMP], 0, 15) << 4)
- | (CLAMP(rgba[i][ACOMP], 0, 15) );
- }
- }
- else if (dstFormat == GL_ABGR_EXT) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (CLAMP(rgba[i][ACOMP], 0, 15) << 12)
- | (CLAMP(rgba[i][BCOMP], 0, 15) << 8)
- | (CLAMP(rgba[i][GCOMP], 0, 15) << 4)
- | (CLAMP(rgba[i][RCOMP], 0, 15) );
- }
- } else {
- _pack_rgba_span_from_ints_problem(ctx, dstFormat, dstType);
- }
- break;
- case GL_UNSIGNED_SHORT_4_4_4_4_REV:
- if ((dstFormat == GL_RGBA) || (dstFormat == GL_RGBA_INTEGER_EXT)) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (CLAMP(rgba[i][RCOMP], 0, 15) )
- | (CLAMP(rgba[i][GCOMP], 0, 15) << 4)
- | (CLAMP(rgba[i][BCOMP], 0, 15) << 8)
- | (CLAMP(rgba[i][ACOMP], 0, 15) << 12);
- }
- }
- else if ((dstFormat == GL_BGRA) || (dstFormat == GL_BGRA_INTEGER)) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (CLAMP(rgba[i][BCOMP], 0, 15) )
- | (CLAMP(rgba[i][GCOMP], 0, 15) << 4)
- | (CLAMP(rgba[i][RCOMP], 0, 15) << 8)
- | (CLAMP(rgba[i][ACOMP], 0, 15) << 12);
- }
- }
- else if (dstFormat == GL_ABGR_EXT) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (CLAMP(rgba[i][ACOMP], 0, 15) )
- | (CLAMP(rgba[i][BCOMP], 0, 15) << 4)
- | (CLAMP(rgba[i][GCOMP], 0, 15) << 8)
- | (CLAMP(rgba[i][RCOMP], 0, 15) << 12);
- }
- } else {
- _pack_rgba_span_from_ints_problem(ctx, dstFormat, dstType);
- }
- break;
- case GL_UNSIGNED_SHORT_5_5_5_1:
- if ((dstFormat == GL_RGBA) || (dstFormat == GL_RGBA_INTEGER_EXT)) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (CLAMP(rgba[i][RCOMP], 0, 31) << 11)
- | (CLAMP(rgba[i][GCOMP], 0, 31) << 6)
- | (CLAMP(rgba[i][BCOMP], 0, 31) << 1)
- | (CLAMP(rgba[i][ACOMP], 0, 1) );
- }
- }
- else if ((dstFormat == GL_BGRA) || (dstFormat == GL_BGRA_INTEGER)) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (CLAMP(rgba[i][BCOMP], 0, 31) << 11)
- | (CLAMP(rgba[i][GCOMP], 0, 31) << 6)
- | (CLAMP(rgba[i][RCOMP], 0, 31) << 1)
- | (CLAMP(rgba[i][ACOMP], 0, 1) );
- }
- }
- else if (dstFormat == GL_ABGR_EXT) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (CLAMP(rgba[i][ACOMP], 0, 31) << 11)
- | (CLAMP(rgba[i][BCOMP], 0, 31) << 6)
- | (CLAMP(rgba[i][GCOMP], 0, 31) << 1)
- | (CLAMP(rgba[i][RCOMP], 0, 1) );
- }
- } else {
- _pack_rgba_span_from_ints_problem(ctx, dstFormat, dstType);
- }
- break;
- case GL_UNSIGNED_SHORT_1_5_5_5_REV:
- if ((dstFormat == GL_RGBA) || (dstFormat == GL_RGBA_INTEGER_EXT)) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (CLAMP(rgba[i][RCOMP], 0, 31) )
- | (CLAMP(rgba[i][GCOMP], 0, 31) << 5)
- | (CLAMP(rgba[i][BCOMP], 0, 31) << 10)
- | (CLAMP(rgba[i][ACOMP], 0, 1) << 15);
- }
- }
- else if ((dstFormat == GL_BGRA) || (dstFormat == GL_BGRA_INTEGER)) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (CLAMP(rgba[i][BCOMP], 0, 31) )
- | (CLAMP(rgba[i][GCOMP], 0, 31) << 5)
- | (CLAMP(rgba[i][RCOMP], 0, 31) << 10)
- | (CLAMP(rgba[i][ACOMP], 0, 1) << 15);
- }
- }
- else if (dstFormat == GL_ABGR_EXT) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (CLAMP(rgba[i][ACOMP], 0, 31) )
- | (CLAMP(rgba[i][BCOMP], 0, 31) << 5)
- | (CLAMP(rgba[i][GCOMP], 0, 31) << 10)
- | (CLAMP(rgba[i][RCOMP], 0, 1) << 15);
- }
- } else {
- _pack_rgba_span_from_ints_problem(ctx, dstFormat, dstType);
- }
- break;
- case GL_UNSIGNED_INT_8_8_8_8:
- if ((dstFormat == GL_RGBA) || (dstFormat == GL_RGBA_INTEGER_EXT)) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (CLAMP(rgba[i][RCOMP], 0, 255) << 24)
- | (CLAMP(rgba[i][GCOMP], 0, 255) << 16)
- | (CLAMP(rgba[i][BCOMP], 0, 255) << 8)
- | (CLAMP(rgba[i][ACOMP], 0, 255) );
- }
- }
- else if ((dstFormat == GL_BGRA) || (dstFormat == GL_BGRA_INTEGER)) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (CLAMP(rgba[i][BCOMP], 0, 255) << 24)
- | (CLAMP(rgba[i][GCOMP], 0, 255) << 16)
- | (CLAMP(rgba[i][RCOMP], 0, 255) << 8)
- | (CLAMP(rgba[i][ACOMP], 0, 255) );
- }
- }
- else if (dstFormat == GL_ABGR_EXT) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (CLAMP(rgba[i][ACOMP], 0, 255) << 24)
- | (CLAMP(rgba[i][BCOMP], 0, 255) << 16)
- | (CLAMP(rgba[i][GCOMP], 0, 255) << 8)
- | (CLAMP(rgba[i][RCOMP], 0, 255) );
- }
- } else {
- _pack_rgba_span_from_ints_problem(ctx, dstFormat, dstType);
- }
- break;
- case GL_UNSIGNED_INT_8_8_8_8_REV:
- if ((dstFormat == GL_RGBA) || (dstFormat == GL_RGBA_INTEGER_EXT)) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (CLAMP(rgba[i][RCOMP], 0, 255) )
- | (CLAMP(rgba[i][GCOMP], 0, 255) << 8)
- | (CLAMP(rgba[i][BCOMP], 0, 255) << 16)
- | (CLAMP(rgba[i][ACOMP], 0, 255) << 24);
- }
- }
- else if ((dstFormat == GL_BGRA) || (dstFormat == GL_BGRA_INTEGER)) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (CLAMP(rgba[i][BCOMP], 0, 255) )
- | (CLAMP(rgba[i][GCOMP], 0, 255) << 8)
- | (CLAMP(rgba[i][RCOMP], 0, 255) << 16)
- | (CLAMP(rgba[i][ACOMP], 0, 255) << 24);
- }
- }
- else if (dstFormat == GL_ABGR_EXT) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (CLAMP(rgba[i][ACOMP], 0, 255) )
- | (CLAMP(rgba[i][BCOMP], 0, 255) << 8)
- | (CLAMP(rgba[i][GCOMP], 0, 255) << 16)
- | (CLAMP(rgba[i][RCOMP], 0, 255) << 24);
- }
- } else {
- _pack_rgba_span_from_ints_problem(ctx, dstFormat, dstType);
- }
- break;
- case GL_UNSIGNED_INT_10_10_10_2:
- if ((dstFormat == GL_RGBA) || (dstFormat == GL_RGBA_INTEGER_EXT)) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (CLAMP(rgba[i][RCOMP], 0, 1023) << 22)
- | (CLAMP(rgba[i][GCOMP], 0, 1023) << 12)
- | (CLAMP(rgba[i][BCOMP], 0, 1023) << 2)
- | (CLAMP(rgba[i][ACOMP], 0, 3) );
- }
- }
- else if ((dstFormat == GL_BGRA) || (dstFormat == GL_BGRA_INTEGER)) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (CLAMP(rgba[i][BCOMP], 0, 1023) << 22)
- | (CLAMP(rgba[i][GCOMP], 0, 1023) << 12)
- | (CLAMP(rgba[i][RCOMP], 0, 1023) << 2)
- | (CLAMP(rgba[i][ACOMP], 0, 3) );
- }
- }
- else if (dstFormat == GL_ABGR_EXT) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (CLAMP(rgba[i][ACOMP], 0, 1023) << 22)
- | (CLAMP(rgba[i][BCOMP], 0, 1023) << 12)
- | (CLAMP(rgba[i][GCOMP], 0, 1023) << 2)
- | (CLAMP(rgba[i][RCOMP], 0, 3) );
- }
- } else {
- _pack_rgba_span_from_ints_problem(ctx, dstFormat, dstType);
- }
- break;
- case GL_UNSIGNED_INT_2_10_10_10_REV:
- if ((dstFormat == GL_RGBA) || (dstFormat == GL_RGBA_INTEGER_EXT)) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (CLAMP(rgba[i][RCOMP], 0, 1023) )
- | (CLAMP(rgba[i][GCOMP], 0, 1023) << 10)
- | (CLAMP(rgba[i][BCOMP], 0, 1023) << 20)
- | (CLAMP(rgba[i][ACOMP], 0, 3) << 30);
- }
- }
- else if ((dstFormat == GL_BGRA) || (dstFormat == GL_BGRA_INTEGER)) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (CLAMP(rgba[i][BCOMP], 0, 1023) )
- | (CLAMP(rgba[i][GCOMP], 0, 1023) << 10)
- | (CLAMP(rgba[i][RCOMP], 0, 1023) << 20)
- | (CLAMP(rgba[i][ACOMP], 0, 3) << 30);
- }
- }
- else if (dstFormat == GL_ABGR_EXT) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (CLAMP(rgba[i][ACOMP], 0, 1023) )
- | (CLAMP(rgba[i][BCOMP], 0, 1023) << 10)
- | (CLAMP(rgba[i][GCOMP], 0, 1023) << 20)
- | (CLAMP(rgba[i][RCOMP], 0, 3) << 30);
- }
- } else {
- _pack_rgba_span_from_ints_problem(ctx, dstFormat, dstType);
- }
- break;
- default:
- _pack_rgba_span_from_ints_problem(ctx, dstFormat, dstType);
- return;
- }
-}
-
-
-/**
- * Used to pack an array [][4] of RGBA float colors as specified
- * by the dstFormat, dstType and dstPacking. Used by glReadPixels.
- * Historically, the RGBA values were in [0,1] and rescaled to fit
- * into GLubytes, etc. But with new integer formats, the RGBA values
- * may have any value and we don't always rescale when converting to
- * integers.
- *
- * Note: the rgba values will be modified by this function when any pixel
- * transfer ops are enabled.
- */
-void
-_mesa_pack_rgba_span_float(struct gl_context *ctx, GLuint n, GLfloat rgba[][4],
- GLenum dstFormat, GLenum dstType,
- GLvoid *dstAddr,
- const struct gl_pixelstore_attrib *dstPacking,
- GLbitfield transferOps)
-{
- GLfloat *luminance;
- const GLint comps = _mesa_components_in_format(dstFormat);
- const GLboolean intDstFormat = _mesa_is_enum_format_integer(dstFormat);
- GLuint i;
-
- if (dstFormat == GL_LUMINANCE ||
- dstFormat == GL_LUMINANCE_ALPHA ||
- dstFormat == GL_LUMINANCE_INTEGER_EXT ||
- dstFormat == GL_LUMINANCE_ALPHA_INTEGER_EXT) {
- luminance = malloc(n * sizeof(GLfloat));
- if (!luminance) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel packing");
- return;
- }
- }
- else {
- luminance = NULL;
- }
-
- /* EXT_texture_integer specifies no transfer ops on integer
- * types in the resolved issues section. Just set them to 0
- * for integer surfaces.
- */
- if (intDstFormat)
- transferOps = 0;
-
- if (transferOps) {
- _mesa_apply_rgba_transfer_ops(ctx, transferOps, n, rgba);
- }
-
- /*
- * Component clamping (besides clamping to [0,1] in
- * _mesa_apply_rgba_transfer_ops()).
- */
- if (intDstFormat) {
- /* clamping to dest type's min/max values */
- GLfloat min, max;
- if (get_type_min_max(dstType, &min, &max)) {
- for (i = 0; i < n; i++) {
- rgba[i][RCOMP] = CLAMP(rgba[i][RCOMP], min, max);
- rgba[i][GCOMP] = CLAMP(rgba[i][GCOMP], min, max);
- rgba[i][BCOMP] = CLAMP(rgba[i][BCOMP], min, max);
- rgba[i][ACOMP] = CLAMP(rgba[i][ACOMP], min, max);
- }
- }
- }
- else if (dstFormat == GL_LUMINANCE || dstFormat == GL_LUMINANCE_ALPHA) {
- /* compute luminance values */
- if (transferOps & IMAGE_CLAMP_BIT) {
- for (i = 0; i < n; i++) {
- GLfloat sum = rgba[i][RCOMP] + rgba[i][GCOMP] + rgba[i][BCOMP];
- luminance[i] = CLAMP(sum, 0.0F, 1.0F);
- }
- }
- else {
- for (i = 0; i < n; i++) {
- luminance[i] = rgba[i][RCOMP] + rgba[i][GCOMP] + rgba[i][BCOMP];
- }
- }
- }
-
- /*
- * Pack/store the pixels. Ugh! Lots of cases!!!
- */
- switch (dstType) {
- case GL_UNSIGNED_BYTE:
- {
- GLubyte *dst = (GLubyte *) dstAddr;
- switch (dstFormat) {
- case GL_RED:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_UBYTE(rgba[i][RCOMP]);
- break;
- case GL_GREEN:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_UBYTE(rgba[i][GCOMP]);
- break;
- case GL_BLUE:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_UBYTE(rgba[i][BCOMP]);
- break;
- case GL_ALPHA:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_UBYTE(rgba[i][ACOMP]);
- break;
- case GL_LUMINANCE:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_UBYTE(luminance[i]);
- break;
- case GL_LUMINANCE_ALPHA:
- for (i=0;i<n;i++) {
- dst[i*2+0] = FLOAT_TO_UBYTE(luminance[i]);
- dst[i*2+1] = FLOAT_TO_UBYTE(rgba[i][ACOMP]);
- }
- break;
- case GL_RG:
- for (i=0;i<n;i++) {
- dst[i*2+0] = FLOAT_TO_UBYTE(rgba[i][RCOMP]);
- dst[i*2+1] = FLOAT_TO_UBYTE(rgba[i][GCOMP]);
- }
- break;
- case GL_RGB:
- for (i=0;i<n;i++) {
- dst[i*3+0] = FLOAT_TO_UBYTE(rgba[i][RCOMP]);
- dst[i*3+1] = FLOAT_TO_UBYTE(rgba[i][GCOMP]);
- dst[i*3+2] = FLOAT_TO_UBYTE(rgba[i][BCOMP]);
- }
- break;
- case GL_RGBA:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_UBYTE(rgba[i][RCOMP]);
- dst[i*4+1] = FLOAT_TO_UBYTE(rgba[i][GCOMP]);
- dst[i*4+2] = FLOAT_TO_UBYTE(rgba[i][BCOMP]);
- dst[i*4+3] = FLOAT_TO_UBYTE(rgba[i][ACOMP]);
- }
- break;
- case GL_BGR:
- for (i=0;i<n;i++) {
- dst[i*3+0] = FLOAT_TO_UBYTE(rgba[i][BCOMP]);
- dst[i*3+1] = FLOAT_TO_UBYTE(rgba[i][GCOMP]);
- dst[i*3+2] = FLOAT_TO_UBYTE(rgba[i][RCOMP]);
- }
- break;
- case GL_BGRA:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_UBYTE(rgba[i][BCOMP]);
- dst[i*4+1] = FLOAT_TO_UBYTE(rgba[i][GCOMP]);
- dst[i*4+2] = FLOAT_TO_UBYTE(rgba[i][RCOMP]);
- dst[i*4+3] = FLOAT_TO_UBYTE(rgba[i][ACOMP]);
- }
- break;
- case GL_ABGR_EXT:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_UBYTE(rgba[i][ACOMP]);
- dst[i*4+1] = FLOAT_TO_UBYTE(rgba[i][BCOMP]);
- dst[i*4+2] = FLOAT_TO_UBYTE(rgba[i][GCOMP]);
- dst[i*4+3] = FLOAT_TO_UBYTE(rgba[i][RCOMP]);
- }
- break;
- case GL_RED_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i] = (GLubyte) rgba[i][RCOMP];
- }
- break;
- case GL_GREEN_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i] = (GLubyte) rgba[i][GCOMP];
- }
- break;
- case GL_BLUE_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i] = (GLubyte) rgba[i][BCOMP];
- }
- break;
- case GL_ALPHA_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i] = (GLubyte) rgba[i][ACOMP];
- }
- break;
- case GL_RG_INTEGER:
- for (i=0;i<n;i++) {
- dst[i*2+0] = (GLubyte) rgba[i][RCOMP];
- dst[i*2+1] = (GLubyte) rgba[i][GCOMP];
- }
- break;
- case GL_RGB_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i*3+0] = (GLubyte) rgba[i][RCOMP];
- dst[i*3+1] = (GLubyte) rgba[i][GCOMP];
- dst[i*3+2] = (GLubyte) rgba[i][BCOMP];
- }
- break;
- case GL_RGBA_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i*4+0] = (GLubyte) rgba[i][RCOMP];
- dst[i*4+1] = (GLubyte) rgba[i][GCOMP];
- dst[i*4+2] = (GLubyte) rgba[i][BCOMP];
- dst[i*4+3] = (GLubyte) rgba[i][ACOMP];
- }
- break;
- case GL_BGR_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i*3+0] = (GLubyte) rgba[i][BCOMP];
- dst[i*3+1] = (GLubyte) rgba[i][GCOMP];
- dst[i*3+2] = (GLubyte) rgba[i][RCOMP];
- }
- break;
- case GL_BGRA_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i*4+0] = (GLubyte) rgba[i][BCOMP];
- dst[i*4+1] = (GLubyte) rgba[i][GCOMP];
- dst[i*4+2] = (GLubyte) rgba[i][RCOMP];
- dst[i*4+3] = (GLubyte) rgba[i][ACOMP];
- }
- break;
- case GL_LUMINANCE_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i*2+0] = (GLubyte) (rgba[i][RCOMP] +
- rgba[i][GCOMP] +
- rgba[i][BCOMP]);
- dst[i*2+1] = (GLubyte) rgba[i][ACOMP];
- }
- break;
- case GL_LUMINANCE_ALPHA_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i] = (GLubyte) (rgba[i][RCOMP] +
- rgba[i][GCOMP] +
- rgba[i][BCOMP]);
- }
- break;
- case GL_DUDV_ATI:
- case GL_DU8DV8_ATI:
- for (i=0;i<n;i++) {
- dst[i*2+0] = FLOAT_TO_UBYTE(rgba[i][RCOMP]);
- dst[i*2+1] = FLOAT_TO_UBYTE(rgba[i][GCOMP]);
- }
- break;
- default:
- _mesa_problem(ctx, "bad format in _mesa_pack_rgba_span\n");
- }
- }
- break;
- case GL_BYTE:
- {
- GLbyte *dst = (GLbyte *) dstAddr;
- switch (dstFormat) {
- case GL_RED:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_BYTE(rgba[i][RCOMP]);
- break;
- case GL_GREEN:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_BYTE(rgba[i][GCOMP]);
- break;
- case GL_BLUE:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_BYTE(rgba[i][BCOMP]);
- break;
- case GL_ALPHA:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_BYTE(rgba[i][ACOMP]);
- break;
- case GL_LUMINANCE:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_BYTE(luminance[i]);
- break;
- case GL_LUMINANCE_ALPHA:
- for (i=0;i<n;i++) {
- dst[i*2+0] = FLOAT_TO_BYTE(luminance[i]);
- dst[i*2+1] = FLOAT_TO_BYTE(rgba[i][ACOMP]);
- }
- break;
- case GL_RG:
- for (i=0;i<n;i++) {
- dst[i*2+0] = FLOAT_TO_BYTE(rgba[i][RCOMP]);
- dst[i*2+1] = FLOAT_TO_BYTE(rgba[i][GCOMP]);
- }
- break;
- case GL_RGB:
- for (i=0;i<n;i++) {
- dst[i*3+0] = FLOAT_TO_BYTE(rgba[i][RCOMP]);
- dst[i*3+1] = FLOAT_TO_BYTE(rgba[i][GCOMP]);
- dst[i*3+2] = FLOAT_TO_BYTE(rgba[i][BCOMP]);
- }
- break;
- case GL_RGBA:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_BYTE(rgba[i][RCOMP]);
- dst[i*4+1] = FLOAT_TO_BYTE(rgba[i][GCOMP]);
- dst[i*4+2] = FLOAT_TO_BYTE(rgba[i][BCOMP]);
- dst[i*4+3] = FLOAT_TO_BYTE(rgba[i][ACOMP]);
- }
- break;
- case GL_BGR:
- for (i=0;i<n;i++) {
- dst[i*3+0] = FLOAT_TO_BYTE(rgba[i][BCOMP]);
- dst[i*3+1] = FLOAT_TO_BYTE(rgba[i][GCOMP]);
- dst[i*3+2] = FLOAT_TO_BYTE(rgba[i][RCOMP]);
- }
- break;
- case GL_BGRA:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_BYTE(rgba[i][BCOMP]);
- dst[i*4+1] = FLOAT_TO_BYTE(rgba[i][GCOMP]);
- dst[i*4+2] = FLOAT_TO_BYTE(rgba[i][RCOMP]);
- dst[i*4+3] = FLOAT_TO_BYTE(rgba[i][ACOMP]);
- }
- break;
- case GL_ABGR_EXT:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_BYTE(rgba[i][ACOMP]);
- dst[i*4+1] = FLOAT_TO_BYTE(rgba[i][BCOMP]);
- dst[i*4+2] = FLOAT_TO_BYTE(rgba[i][GCOMP]);
- dst[i*4+3] = FLOAT_TO_BYTE(rgba[i][RCOMP]);
- }
- break;
- case GL_RED_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i] = (GLbyte) rgba[i][RCOMP];
- }
- break;
- case GL_GREEN_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i] = (GLbyte) rgba[i][GCOMP];
- }
- break;
- case GL_BLUE_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i] = (GLbyte) rgba[i][BCOMP];
- }
- break;
- case GL_ALPHA_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i] = (GLbyte) rgba[i][ACOMP];
- }
- break;
- case GL_RG_INTEGER:
- for (i=0;i<n;i++) {
- dst[i*2+0] = (GLbyte) rgba[i][RCOMP];
- dst[i*2+1] = (GLbyte) rgba[i][GCOMP];
- }
- break;
- case GL_RGB_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i*3+0] = (GLbyte) rgba[i][RCOMP];
- dst[i*3+1] = (GLbyte) rgba[i][GCOMP];
- dst[i*3+2] = (GLbyte) rgba[i][BCOMP];
- }
- break;
- case GL_RGBA_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i*4+0] = (GLbyte) rgba[i][RCOMP];
- dst[i*4+1] = (GLbyte) rgba[i][GCOMP];
- dst[i*4+2] = (GLbyte) rgba[i][BCOMP];
- dst[i*4+3] = (GLbyte) rgba[i][ACOMP];
- }
- break;
- case GL_BGR_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i*3+0] = (GLbyte) rgba[i][BCOMP];
- dst[i*3+1] = (GLbyte) rgba[i][GCOMP];
- dst[i*3+2] = (GLbyte) rgba[i][RCOMP];
- }
- break;
- case GL_BGRA_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i*4+0] = (GLbyte) rgba[i][BCOMP];
- dst[i*4+1] = (GLbyte) rgba[i][GCOMP];
- dst[i*4+2] = (GLbyte) rgba[i][RCOMP];
- dst[i*4+3] = (GLbyte) rgba[i][ACOMP];
- }
- break;
- case GL_LUMINANCE_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i*2+0] = (GLbyte) (rgba[i][RCOMP] +
- rgba[i][GCOMP] +
- rgba[i][BCOMP]);
- dst[i*2+1] = (GLbyte) rgba[i][ACOMP];
- }
- break;
- case GL_LUMINANCE_ALPHA_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i] = (GLbyte) (rgba[i][RCOMP] +
- rgba[i][GCOMP] +
- rgba[i][BCOMP]);
- }
- break;
- case GL_DUDV_ATI:
- case GL_DU8DV8_ATI:
- for (i=0;i<n;i++) {
- dst[i*2+0] = FLOAT_TO_BYTE(rgba[i][RCOMP]);
- dst[i*2+1] = FLOAT_TO_BYTE(rgba[i][GCOMP]);
- }
- break;
- default:
- _mesa_problem(ctx, "bad format in _mesa_pack_rgba_span\n");
- }
- }
- break;
- case GL_UNSIGNED_SHORT:
- {
- GLushort *dst = (GLushort *) dstAddr;
- switch (dstFormat) {
- case GL_RED:
- for (i=0;i<n;i++)
- CLAMPED_FLOAT_TO_USHORT(dst[i], rgba[i][RCOMP]);
- break;
- case GL_GREEN:
- for (i=0;i<n;i++)
- CLAMPED_FLOAT_TO_USHORT(dst[i], rgba[i][GCOMP]);
- break;
- case GL_BLUE:
- for (i=0;i<n;i++)
- CLAMPED_FLOAT_TO_USHORT(dst[i], rgba[i][BCOMP]);
- break;
- case GL_ALPHA:
- for (i=0;i<n;i++)
- CLAMPED_FLOAT_TO_USHORT(dst[i], rgba[i][ACOMP]);
- break;
- case GL_LUMINANCE:
- for (i=0;i<n;i++)
- UNCLAMPED_FLOAT_TO_USHORT(dst[i], luminance[i]);
- break;
- case GL_LUMINANCE_ALPHA:
- for (i=0;i<n;i++) {
- UNCLAMPED_FLOAT_TO_USHORT(dst[i*2+0], luminance[i]);
- CLAMPED_FLOAT_TO_USHORT(dst[i*2+1], rgba[i][ACOMP]);
- }
- break;
- case GL_RG:
- for (i=0;i<n;i++) {
- CLAMPED_FLOAT_TO_USHORT(dst[i*2+0], rgba[i][RCOMP]);
- CLAMPED_FLOAT_TO_USHORT(dst[i*2+1], rgba[i][GCOMP]);
- }
- break;
- case GL_RGB:
- for (i=0;i<n;i++) {
- CLAMPED_FLOAT_TO_USHORT(dst[i*3+0], rgba[i][RCOMP]);
- CLAMPED_FLOAT_TO_USHORT(dst[i*3+1], rgba[i][GCOMP]);
- CLAMPED_FLOAT_TO_USHORT(dst[i*3+2], rgba[i][BCOMP]);
- }
- break;
- case GL_RGBA:
- for (i=0;i<n;i++) {
- CLAMPED_FLOAT_TO_USHORT(dst[i*4+0], rgba[i][RCOMP]);
- CLAMPED_FLOAT_TO_USHORT(dst[i*4+1], rgba[i][GCOMP]);
- CLAMPED_FLOAT_TO_USHORT(dst[i*4+2], rgba[i][BCOMP]);
- CLAMPED_FLOAT_TO_USHORT(dst[i*4+3], rgba[i][ACOMP]);
- }
- break;
- case GL_BGR:
- for (i=0;i<n;i++) {
- CLAMPED_FLOAT_TO_USHORT(dst[i*3+0], rgba[i][BCOMP]);
- CLAMPED_FLOAT_TO_USHORT(dst[i*3+1], rgba[i][GCOMP]);
- CLAMPED_FLOAT_TO_USHORT(dst[i*3+2], rgba[i][RCOMP]);
- }
- break;
- case GL_BGRA:
- for (i=0;i<n;i++) {
- CLAMPED_FLOAT_TO_USHORT(dst[i*4+0], rgba[i][BCOMP]);
- CLAMPED_FLOAT_TO_USHORT(dst[i*4+1], rgba[i][GCOMP]);
- CLAMPED_FLOAT_TO_USHORT(dst[i*4+2], rgba[i][RCOMP]);
- CLAMPED_FLOAT_TO_USHORT(dst[i*4+3], rgba[i][ACOMP]);
- }
- break;
- case GL_ABGR_EXT:
- for (i=0;i<n;i++) {
- CLAMPED_FLOAT_TO_USHORT(dst[i*4+0], rgba[i][ACOMP]);
- CLAMPED_FLOAT_TO_USHORT(dst[i*4+1], rgba[i][BCOMP]);
- CLAMPED_FLOAT_TO_USHORT(dst[i*4+2], rgba[i][GCOMP]);
- CLAMPED_FLOAT_TO_USHORT(dst[i*4+3], rgba[i][RCOMP]);
- }
- break;
- case GL_RED_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i] = (GLushort) rgba[i][RCOMP];
- }
- break;
- case GL_GREEN_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i] = (GLushort) rgba[i][GCOMP];
- }
- break;
- case GL_BLUE_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i] = (GLushort) rgba[i][BCOMP];
- }
- break;
- case GL_ALPHA_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i] = (GLushort) rgba[i][ACOMP];
- }
- break;
- case GL_RG_INTEGER:
- for (i=0;i<n;i++) {
- dst[i*2+0] = (GLushort) rgba[i][RCOMP];
- dst[i*2+1] = (GLushort) rgba[i][GCOMP];
- }
- break;
- case GL_RGB_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i*3+0] = (GLushort) rgba[i][RCOMP];
- dst[i*3+1] = (GLushort) rgba[i][GCOMP];
- dst[i*3+2] = (GLushort) rgba[i][BCOMP];
- }
- break;
- case GL_RGBA_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i*4+0] = (GLushort) rgba[i][RCOMP];
- dst[i*4+1] = (GLushort) rgba[i][GCOMP];
- dst[i*4+2] = (GLushort) rgba[i][BCOMP];
- dst[i*4+3] = (GLushort) rgba[i][ACOMP];
- }
- break;
- case GL_BGR_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i*3+0] = (GLushort) rgba[i][BCOMP];
- dst[i*3+1] = (GLushort) rgba[i][GCOMP];
- dst[i*3+2] = (GLushort) rgba[i][RCOMP];
- }
- break;
- case GL_BGRA_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i*4+0] = (GLushort) rgba[i][BCOMP];
- dst[i*4+1] = (GLushort) rgba[i][GCOMP];
- dst[i*4+2] = (GLushort) rgba[i][RCOMP];
- dst[i*4+3] = (GLushort) rgba[i][ACOMP];
- }
- break;
- case GL_LUMINANCE_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i*2+0] = (GLushort) (rgba[i][RCOMP] +
- rgba[i][GCOMP] +
- rgba[i][BCOMP]);
- dst[i*2+1] = (GLushort) rgba[i][ACOMP];
- }
- break;
- case GL_LUMINANCE_ALPHA_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i] = (GLushort) (rgba[i][RCOMP] +
- rgba[i][GCOMP] +
- rgba[i][BCOMP]);
- }
- break;
- case GL_DUDV_ATI:
- case GL_DU8DV8_ATI:
- for (i=0;i<n;i++) {
- dst[i*2+0] = FLOAT_TO_USHORT(rgba[i][RCOMP]);
- dst[i*2+1] = FLOAT_TO_USHORT(rgba[i][GCOMP]);
- }
- break;
- default:
- _mesa_problem(ctx, "bad format in _mesa_pack_rgba_span\n");
- }
- }
- break;
- case GL_SHORT:
- {
- GLshort *dst = (GLshort *) dstAddr;
- switch (dstFormat) {
- case GL_RED:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_SHORT(rgba[i][RCOMP]);
- break;
- case GL_GREEN:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_SHORT(rgba[i][GCOMP]);
- break;
- case GL_BLUE:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_SHORT(rgba[i][BCOMP]);
- break;
- case GL_ALPHA:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_SHORT(rgba[i][ACOMP]);
- break;
- case GL_LUMINANCE:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_SHORT(luminance[i]);
- break;
- case GL_LUMINANCE_ALPHA:
- for (i=0;i<n;i++) {
- dst[i*2+0] = FLOAT_TO_SHORT(luminance[i]);
- dst[i*2+1] = FLOAT_TO_SHORT(rgba[i][ACOMP]);
- }
- break;
- case GL_RG:
- for (i=0;i<n;i++) {
- dst[i*2+0] = FLOAT_TO_SHORT(rgba[i][RCOMP]);
- dst[i*2+1] = FLOAT_TO_SHORT(rgba[i][GCOMP]);
- }
- break;
- case GL_RGB:
- for (i=0;i<n;i++) {
- dst[i*3+0] = FLOAT_TO_SHORT(rgba[i][RCOMP]);
- dst[i*3+1] = FLOAT_TO_SHORT(rgba[i][GCOMP]);
- dst[i*3+2] = FLOAT_TO_SHORT(rgba[i][BCOMP]);
- }
- break;
- case GL_RGBA:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_SHORT(rgba[i][RCOMP]);
- dst[i*4+1] = FLOAT_TO_SHORT(rgba[i][GCOMP]);
- dst[i*4+2] = FLOAT_TO_SHORT(rgba[i][BCOMP]);
- dst[i*4+3] = FLOAT_TO_SHORT(rgba[i][ACOMP]);
- }
- break;
- case GL_BGR:
- for (i=0;i<n;i++) {
- dst[i*3+0] = FLOAT_TO_SHORT(rgba[i][BCOMP]);
- dst[i*3+1] = FLOAT_TO_SHORT(rgba[i][GCOMP]);
- dst[i*3+2] = FLOAT_TO_SHORT(rgba[i][RCOMP]);
- }
- break;
- case GL_BGRA:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_SHORT(rgba[i][BCOMP]);
- dst[i*4+1] = FLOAT_TO_SHORT(rgba[i][GCOMP]);
- dst[i*4+2] = FLOAT_TO_SHORT(rgba[i][RCOMP]);
- dst[i*4+3] = FLOAT_TO_SHORT(rgba[i][ACOMP]);
- }
- break;
- case GL_ABGR_EXT:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_SHORT(rgba[i][ACOMP]);
- dst[i*4+1] = FLOAT_TO_SHORT(rgba[i][BCOMP]);
- dst[i*4+2] = FLOAT_TO_SHORT(rgba[i][GCOMP]);
- dst[i*4+3] = FLOAT_TO_SHORT(rgba[i][RCOMP]);
- }
- break;
- case GL_RED_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i] = (GLshort) rgba[i][RCOMP];
- }
- break;
- case GL_GREEN_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i] = (GLshort) rgba[i][GCOMP];
- }
- break;
- case GL_BLUE_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i] = (GLshort) rgba[i][BCOMP];
- }
- break;
- case GL_ALPHA_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i] = (GLshort) rgba[i][ACOMP];
- }
- break;
- case GL_RG_INTEGER:
- for (i=0;i<n;i++) {
- dst[i*2+0] = (GLshort) rgba[i][RCOMP];
- dst[i*2+1] = (GLshort) rgba[i][GCOMP];
- }
- break;
- case GL_RGB_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i*3+0] = (GLshort) rgba[i][RCOMP];
- dst[i*3+1] = (GLshort) rgba[i][GCOMP];
- dst[i*3+2] = (GLshort) rgba[i][BCOMP];
- }
- break;
- case GL_RGBA_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i*4+0] = (GLshort) rgba[i][RCOMP];
- dst[i*4+1] = (GLshort) rgba[i][GCOMP];
- dst[i*4+2] = (GLshort) rgba[i][BCOMP];
- dst[i*4+3] = (GLshort) rgba[i][ACOMP];
- }
- break;
- case GL_BGR_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i*3+0] = (GLshort) rgba[i][BCOMP];
- dst[i*3+1] = (GLshort) rgba[i][GCOMP];
- dst[i*3+2] = (GLshort) rgba[i][RCOMP];
- }
- break;
- case GL_BGRA_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i*4+0] = (GLshort) rgba[i][BCOMP];
- dst[i*4+1] = (GLshort) rgba[i][GCOMP];
- dst[i*4+2] = (GLshort) rgba[i][RCOMP];
- dst[i*4+3] = (GLshort) rgba[i][ACOMP];
- }
- break;
- case GL_LUMINANCE_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i*2+0] = (GLshort) (rgba[i][RCOMP] +
- rgba[i][GCOMP] +
- rgba[i][BCOMP]);
- dst[i*2+1] = (GLshort) rgba[i][ACOMP];
- }
- break;
- case GL_LUMINANCE_ALPHA_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i] = (GLshort) (rgba[i][RCOMP] +
- rgba[i][GCOMP] +
- rgba[i][BCOMP]);
- }
- break;
- case GL_DUDV_ATI:
- case GL_DU8DV8_ATI:
- for (i=0;i<n;i++) {
- dst[i*2+0] = FLOAT_TO_SHORT(rgba[i][RCOMP]);
- dst[i*2+1] = FLOAT_TO_SHORT(rgba[i][GCOMP]);
- }
- break;
- default:
- _mesa_problem(ctx, "bad format in _mesa_pack_rgba_span\n");
- }
- }
- break;
- case GL_UNSIGNED_INT:
- {
- GLuint *dst = (GLuint *) dstAddr;
- switch (dstFormat) {
- case GL_RED:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_UINT(rgba[i][RCOMP]);
- break;
- case GL_GREEN:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_UINT(rgba[i][GCOMP]);
- break;
- case GL_BLUE:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_UINT(rgba[i][BCOMP]);
- break;
- case GL_ALPHA:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_UINT(rgba[i][ACOMP]);
- break;
- case GL_LUMINANCE:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_UINT(luminance[i]);
- break;
- case GL_LUMINANCE_ALPHA:
- for (i=0;i<n;i++) {
- dst[i*2+0] = FLOAT_TO_UINT(luminance[i]);
- dst[i*2+1] = FLOAT_TO_UINT(rgba[i][ACOMP]);
- }
- break;
- case GL_RG:
- for (i=0;i<n;i++) {
- dst[i*2+0] = FLOAT_TO_UINT(rgba[i][RCOMP]);
- dst[i*2+1] = FLOAT_TO_UINT(rgba[i][GCOMP]);
- }
- break;
- case GL_RGB:
- for (i=0;i<n;i++) {
- dst[i*3+0] = FLOAT_TO_UINT(rgba[i][RCOMP]);
- dst[i*3+1] = FLOAT_TO_UINT(rgba[i][GCOMP]);
- dst[i*3+2] = FLOAT_TO_UINT(rgba[i][BCOMP]);
- }
- break;
- case GL_RGBA:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_UINT(rgba[i][RCOMP]);
- dst[i*4+1] = FLOAT_TO_UINT(rgba[i][GCOMP]);
- dst[i*4+2] = FLOAT_TO_UINT(rgba[i][BCOMP]);
- dst[i*4+3] = FLOAT_TO_UINT(rgba[i][ACOMP]);
- }
- break;
- case GL_BGR:
- for (i=0;i<n;i++) {
- dst[i*3+0] = FLOAT_TO_UINT(rgba[i][BCOMP]);
- dst[i*3+1] = FLOAT_TO_UINT(rgba[i][GCOMP]);
- dst[i*3+2] = FLOAT_TO_UINT(rgba[i][RCOMP]);
- }
- break;
- case GL_BGRA:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_UINT(rgba[i][BCOMP]);
- dst[i*4+1] = FLOAT_TO_UINT(rgba[i][GCOMP]);
- dst[i*4+2] = FLOAT_TO_UINT(rgba[i][RCOMP]);
- dst[i*4+3] = FLOAT_TO_UINT(rgba[i][ACOMP]);
- }
- break;
- case GL_ABGR_EXT:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_UINT(rgba[i][ACOMP]);
- dst[i*4+1] = FLOAT_TO_UINT(rgba[i][BCOMP]);
- dst[i*4+2] = FLOAT_TO_UINT(rgba[i][GCOMP]);
- dst[i*4+3] = FLOAT_TO_UINT(rgba[i][RCOMP]);
- }
- break;
- case GL_RED_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i] = (GLuint) rgba[i][RCOMP];
- }
- break;
- case GL_GREEN_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i] = (GLuint) rgba[i][GCOMP];
- }
- break;
- case GL_BLUE_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i] = (GLuint) rgba[i][BCOMP];
- }
- break;
- case GL_ALPHA_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i] = (GLuint) rgba[i][ACOMP];
- }
- break;
- case GL_RG_INTEGER:
- for (i=0;i<n;i++) {
- dst[i*2+0] = (GLuint) rgba[i][RCOMP];
- dst[i*2+1] = (GLuint) rgba[i][GCOMP];
- }
- break;
- case GL_RGB_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i*3+0] = (GLuint) rgba[i][RCOMP];
- dst[i*3+1] = (GLuint) rgba[i][GCOMP];
- dst[i*3+2] = (GLuint) rgba[i][BCOMP];
- }
- break;
- case GL_RGBA_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i*4+0] = (GLuint) rgba[i][RCOMP];
- dst[i*4+1] = (GLuint) rgba[i][GCOMP];
- dst[i*4+2] = (GLuint) rgba[i][BCOMP];
- dst[i*4+3] = (GLuint) rgba[i][ACOMP];
- }
- break;
- case GL_BGR_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i*3+0] = (GLuint) rgba[i][BCOMP];
- dst[i*3+1] = (GLuint) rgba[i][GCOMP];
- dst[i*3+2] = (GLuint) rgba[i][RCOMP];
- }
- break;
- case GL_BGRA_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i*4+0] = (GLuint) rgba[i][BCOMP];
- dst[i*4+1] = (GLuint) rgba[i][GCOMP];
- dst[i*4+2] = (GLuint) rgba[i][RCOMP];
- dst[i*4+3] = (GLuint) rgba[i][ACOMP];
- }
- break;
- case GL_LUMINANCE_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i*2+0] = (GLuint) (rgba[i][RCOMP] +
- rgba[i][GCOMP] +
- rgba[i][BCOMP]);
- dst[i*2+1] = (GLuint) rgba[i][ACOMP];
- }
- break;
- case GL_LUMINANCE_ALPHA_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i] = (GLuint) (rgba[i][RCOMP] +
- rgba[i][GCOMP] +
- rgba[i][BCOMP]);
- }
- break;
- case GL_DUDV_ATI:
- case GL_DU8DV8_ATI:
- for (i=0;i<n;i++) {
- dst[i*2+0] = FLOAT_TO_UINT(rgba[i][RCOMP]);
- dst[i*2+1] = FLOAT_TO_UINT(rgba[i][GCOMP]);
- }
- break;
- default:
- _mesa_problem(ctx, "bad format in _mesa_pack_rgba_span\n");
- }
- }
- break;
- case GL_INT:
- {
- GLint *dst = (GLint *) dstAddr;
- switch (dstFormat) {
- case GL_RED:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_INT(rgba[i][RCOMP]);
- break;
- case GL_GREEN:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_INT(rgba[i][GCOMP]);
- break;
- case GL_BLUE:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_INT(rgba[i][BCOMP]);
- break;
- case GL_ALPHA:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_INT(rgba[i][ACOMP]);
- break;
- case GL_LUMINANCE:
- for (i=0;i<n;i++)
- dst[i] = FLOAT_TO_INT(luminance[i]);
- break;
- case GL_LUMINANCE_ALPHA:
- for (i=0;i<n;i++) {
- dst[i*2+0] = FLOAT_TO_INT(luminance[i]);
- dst[i*2+1] = FLOAT_TO_INT(rgba[i][ACOMP]);
- }
- break;
- case GL_RG:
- for (i=0;i<n;i++) {
- dst[i*2+0] = FLOAT_TO_INT(rgba[i][RCOMP]);
- dst[i*2+1] = FLOAT_TO_INT(rgba[i][GCOMP]);
- }
- break;
- case GL_RGB:
- for (i=0;i<n;i++) {
- dst[i*3+0] = FLOAT_TO_INT(rgba[i][RCOMP]);
- dst[i*3+1] = FLOAT_TO_INT(rgba[i][GCOMP]);
- dst[i*3+2] = FLOAT_TO_INT(rgba[i][BCOMP]);
- }
- break;
- case GL_RGBA:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_INT(rgba[i][RCOMP]);
- dst[i*4+1] = FLOAT_TO_INT(rgba[i][GCOMP]);
- dst[i*4+2] = FLOAT_TO_INT(rgba[i][BCOMP]);
- dst[i*4+3] = FLOAT_TO_INT(rgba[i][ACOMP]);
- }
- break;
- case GL_BGR:
- for (i=0;i<n;i++) {
- dst[i*3+0] = FLOAT_TO_INT(rgba[i][BCOMP]);
- dst[i*3+1] = FLOAT_TO_INT(rgba[i][GCOMP]);
- dst[i*3+2] = FLOAT_TO_INT(rgba[i][RCOMP]);
- }
- break;
- case GL_BGRA:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_INT(rgba[i][BCOMP]);
- dst[i*4+1] = FLOAT_TO_INT(rgba[i][GCOMP]);
- dst[i*4+2] = FLOAT_TO_INT(rgba[i][RCOMP]);
- dst[i*4+3] = FLOAT_TO_INT(rgba[i][ACOMP]);
- }
- break;
- case GL_ABGR_EXT:
- for (i=0;i<n;i++) {
- dst[i*4+0] = FLOAT_TO_INT(rgba[i][ACOMP]);
- dst[i*4+1] = FLOAT_TO_INT(rgba[i][BCOMP]);
- dst[i*4+2] = FLOAT_TO_INT(rgba[i][GCOMP]);
- dst[i*4+3] = FLOAT_TO_INT(rgba[i][RCOMP]);
- }
- break;
- case GL_DUDV_ATI:
- case GL_DU8DV8_ATI:
- for (i=0;i<n;i++) {
- dst[i*2+0] = FLOAT_TO_INT(rgba[i][RCOMP]);
- dst[i*2+1] = FLOAT_TO_INT(rgba[i][GCOMP]);
- }
- break;
- case GL_RED_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i] = (GLint) rgba[i][RCOMP];
- }
- break;
- case GL_GREEN_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i] = (GLint) rgba[i][GCOMP];
- }
- break;
- case GL_BLUE_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i] = (GLint) rgba[i][BCOMP];
- }
- break;
- case GL_ALPHA_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i] = (GLint) rgba[i][ACOMP];
- }
- break;
- case GL_RG_INTEGER:
- for (i=0;i<n;i++) {
- dst[i*2+0] = (GLint) rgba[i][RCOMP];
- dst[i*2+1] = (GLint) rgba[i][GCOMP];
- }
- break;
- case GL_RGB_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i*3+0] = (GLint) rgba[i][RCOMP];
- dst[i*3+1] = (GLint) rgba[i][GCOMP];
- dst[i*3+2] = (GLint) rgba[i][BCOMP];
- }
- break;
- case GL_RGBA_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i*4+0] = (GLint) rgba[i][RCOMP];
- dst[i*4+1] = (GLint) rgba[i][GCOMP];
- dst[i*4+2] = (GLint) rgba[i][BCOMP];
- dst[i*4+3] = (GLint) rgba[i][ACOMP];
- }
- break;
- case GL_BGR_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i*3+0] = (GLint) rgba[i][BCOMP];
- dst[i*3+1] = (GLint) rgba[i][GCOMP];
- dst[i*3+2] = (GLint) rgba[i][RCOMP];
- }
- break;
- case GL_BGRA_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i*4+0] = (GLint) rgba[i][BCOMP];
- dst[i*4+1] = (GLint) rgba[i][GCOMP];
- dst[i*4+2] = (GLint) rgba[i][RCOMP];
- dst[i*4+3] = (GLint) rgba[i][ACOMP];
- }
- break;
- case GL_LUMINANCE_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i*2+0] = (GLint) (rgba[i][RCOMP] +
- rgba[i][GCOMP] +
- rgba[i][BCOMP]);
- dst[i*2+1] = (GLint) rgba[i][ACOMP];
- }
- break;
- case GL_LUMINANCE_ALPHA_INTEGER_EXT:
- for (i=0;i<n;i++) {
- dst[i] = (GLint) (rgba[i][RCOMP] +
- rgba[i][GCOMP] +
- rgba[i][BCOMP]);
- }
- break;
- default:
- _mesa_problem(ctx, "bad format in _mesa_pack_rgba_span\n");
- }
- }
- break;
- case GL_FLOAT:
- {
- GLfloat *dst = (GLfloat *) dstAddr;
- switch (dstFormat) {
- case GL_RED:
- for (i=0;i<n;i++)
- dst[i] = rgba[i][RCOMP];
- break;
- case GL_GREEN:
- for (i=0;i<n;i++)
- dst[i] = rgba[i][GCOMP];
- break;
- case GL_BLUE:
- for (i=0;i<n;i++)
- dst[i] = rgba[i][BCOMP];
- break;
- case GL_ALPHA:
- for (i=0;i<n;i++)
- dst[i] = rgba[i][ACOMP];
- break;
- case GL_LUMINANCE:
- for (i=0;i<n;i++)
- dst[i] = luminance[i];
- break;
- case GL_LUMINANCE_ALPHA:
- for (i=0;i<n;i++) {
- dst[i*2+0] = luminance[i];
- dst[i*2+1] = rgba[i][ACOMP];
- }
- break;
- case GL_RG:
- for (i=0;i<n;i++) {
- dst[i*2+0] = rgba[i][RCOMP];
- dst[i*2+1] = rgba[i][GCOMP];
- }
- break;
- case GL_RGB:
- for (i=0;i<n;i++) {
- dst[i*3+0] = rgba[i][RCOMP];
- dst[i*3+1] = rgba[i][GCOMP];
- dst[i*3+2] = rgba[i][BCOMP];
- }
- break;
- case GL_RGBA:
- for (i=0;i<n;i++) {
- dst[i*4+0] = rgba[i][RCOMP];
- dst[i*4+1] = rgba[i][GCOMP];
- dst[i*4+2] = rgba[i][BCOMP];
- dst[i*4+3] = rgba[i][ACOMP];
- }
- break;
- case GL_BGR:
- for (i=0;i<n;i++) {
- dst[i*3+0] = rgba[i][BCOMP];
- dst[i*3+1] = rgba[i][GCOMP];
- dst[i*3+2] = rgba[i][RCOMP];
- }
- break;
- case GL_BGRA:
- for (i=0;i<n;i++) {
- dst[i*4+0] = rgba[i][BCOMP];
- dst[i*4+1] = rgba[i][GCOMP];
- dst[i*4+2] = rgba[i][RCOMP];
- dst[i*4+3] = rgba[i][ACOMP];
- }
- break;
- case GL_ABGR_EXT:
- for (i=0;i<n;i++) {
- dst[i*4+0] = rgba[i][ACOMP];
- dst[i*4+1] = rgba[i][BCOMP];
- dst[i*4+2] = rgba[i][GCOMP];
- dst[i*4+3] = rgba[i][RCOMP];
- }
- break;
- case GL_DUDV_ATI:
- case GL_DU8DV8_ATI:
- for (i=0;i<n;i++) {
- dst[i*2+0] = rgba[i][RCOMP];
- dst[i*2+1] = rgba[i][GCOMP];
- }
- break;
- default:
- _mesa_problem(ctx, "bad format in _mesa_pack_rgba_span\n");
- }
- }
- break;
- case GL_HALF_FLOAT_ARB:
- {
- GLhalfARB *dst = (GLhalfARB *) dstAddr;
- switch (dstFormat) {
- case GL_RED:
- for (i=0;i<n;i++)
- dst[i] = _mesa_float_to_half(rgba[i][RCOMP]);
- break;
- case GL_GREEN:
- for (i=0;i<n;i++)
- dst[i] = _mesa_float_to_half(rgba[i][GCOMP]);
- break;
- case GL_BLUE:
- for (i=0;i<n;i++)
- dst[i] = _mesa_float_to_half(rgba[i][BCOMP]);
- break;
- case GL_ALPHA:
- for (i=0;i<n;i++)
- dst[i] = _mesa_float_to_half(rgba[i][ACOMP]);
- break;
- case GL_LUMINANCE:
- for (i=0;i<n;i++)
- dst[i] = _mesa_float_to_half(luminance[i]);
- break;
- case GL_LUMINANCE_ALPHA:
- for (i=0;i<n;i++) {
- dst[i*2+0] = _mesa_float_to_half(luminance[i]);
- dst[i*2+1] = _mesa_float_to_half(rgba[i][ACOMP]);
- }
- break;
- case GL_RG:
- for (i=0;i<n;i++) {
- dst[i*2+0] = _mesa_float_to_half(rgba[i][RCOMP]);
- dst[i*2+1] = _mesa_float_to_half(rgba[i][GCOMP]);
- }
- break;
- case GL_RGB:
- for (i=0;i<n;i++) {
- dst[i*3+0] = _mesa_float_to_half(rgba[i][RCOMP]);
- dst[i*3+1] = _mesa_float_to_half(rgba[i][GCOMP]);
- dst[i*3+2] = _mesa_float_to_half(rgba[i][BCOMP]);
- }
- break;
- case GL_RGBA:
- for (i=0;i<n;i++) {
- dst[i*4+0] = _mesa_float_to_half(rgba[i][RCOMP]);
- dst[i*4+1] = _mesa_float_to_half(rgba[i][GCOMP]);
- dst[i*4+2] = _mesa_float_to_half(rgba[i][BCOMP]);
- dst[i*4+3] = _mesa_float_to_half(rgba[i][ACOMP]);
- }
- break;
- case GL_BGR:
- for (i=0;i<n;i++) {
- dst[i*3+0] = _mesa_float_to_half(rgba[i][BCOMP]);
- dst[i*3+1] = _mesa_float_to_half(rgba[i][GCOMP]);
- dst[i*3+2] = _mesa_float_to_half(rgba[i][RCOMP]);
- }
- break;
- case GL_BGRA:
- for (i=0;i<n;i++) {
- dst[i*4+0] = _mesa_float_to_half(rgba[i][BCOMP]);
- dst[i*4+1] = _mesa_float_to_half(rgba[i][GCOMP]);
- dst[i*4+2] = _mesa_float_to_half(rgba[i][RCOMP]);
- dst[i*4+3] = _mesa_float_to_half(rgba[i][ACOMP]);
- }
- break;
- case GL_ABGR_EXT:
- for (i=0;i<n;i++) {
- dst[i*4+0] = _mesa_float_to_half(rgba[i][ACOMP]);
- dst[i*4+1] = _mesa_float_to_half(rgba[i][BCOMP]);
- dst[i*4+2] = _mesa_float_to_half(rgba[i][GCOMP]);
- dst[i*4+3] = _mesa_float_to_half(rgba[i][RCOMP]);
- }
- break;
- case GL_DUDV_ATI:
- case GL_DU8DV8_ATI:
- for (i=0;i<n;i++) {
- dst[i*2+0] = _mesa_float_to_half(rgba[i][RCOMP]);
- dst[i*2+1] = _mesa_float_to_half(rgba[i][GCOMP]);
- }
- break;
- default:
- _mesa_problem(ctx, "bad format in _mesa_pack_rgba_span\n");
- }
- }
- break;
- case GL_UNSIGNED_BYTE_3_3_2:
- if (dstFormat == GL_RGB) {
- GLubyte *dst = (GLubyte *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (F_TO_I(rgba[i][RCOMP] * 7.0F) << 5)
- | (F_TO_I(rgba[i][GCOMP] * 7.0F) << 2)
- | (F_TO_I(rgba[i][BCOMP] * 3.0F) );
- }
- }
- break;
- case GL_UNSIGNED_BYTE_2_3_3_REV:
- if (dstFormat == GL_RGB) {
- GLubyte *dst = (GLubyte *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (F_TO_I(rgba[i][RCOMP] * 7.0F) )
- | (F_TO_I(rgba[i][GCOMP] * 7.0F) << 3)
- | (F_TO_I(rgba[i][BCOMP] * 3.0F) << 6);
- }
- }
- break;
- case GL_UNSIGNED_SHORT_5_6_5:
- if (dstFormat == GL_RGB) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (F_TO_I(rgba[i][RCOMP] * 31.0F) << 11)
- | (F_TO_I(rgba[i][GCOMP] * 63.0F) << 5)
- | (F_TO_I(rgba[i][BCOMP] * 31.0F) );
- }
- }
- break;
- case GL_UNSIGNED_SHORT_5_6_5_REV:
- if (dstFormat == GL_RGB) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (F_TO_I(rgba[i][RCOMP] * 31.0F) )
- | (F_TO_I(rgba[i][GCOMP] * 63.0F) << 5)
- | (F_TO_I(rgba[i][BCOMP] * 31.0F) << 11);
- }
- }
- break;
- case GL_UNSIGNED_SHORT_4_4_4_4:
- if (dstFormat == GL_RGBA) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (F_TO_I(rgba[i][RCOMP] * 15.0F) << 12)
- | (F_TO_I(rgba[i][GCOMP] * 15.0F) << 8)
- | (F_TO_I(rgba[i][BCOMP] * 15.0F) << 4)
- | (F_TO_I(rgba[i][ACOMP] * 15.0F) );
- }
- }
- else if (dstFormat == GL_BGRA) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (F_TO_I(rgba[i][BCOMP] * 15.0F) << 12)
- | (F_TO_I(rgba[i][GCOMP] * 15.0F) << 8)
- | (F_TO_I(rgba[i][RCOMP] * 15.0F) << 4)
- | (F_TO_I(rgba[i][ACOMP] * 15.0F) );
- }
- }
- else if (dstFormat == GL_ABGR_EXT) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (F_TO_I(rgba[i][ACOMP] * 15.0F) << 12)
- | (F_TO_I(rgba[i][BCOMP] * 15.0F) << 8)
- | (F_TO_I(rgba[i][GCOMP] * 15.0F) << 4)
- | (F_TO_I(rgba[i][RCOMP] * 15.0F) );
- }
- }
- break;
- case GL_UNSIGNED_SHORT_4_4_4_4_REV:
- if (dstFormat == GL_RGBA) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (F_TO_I(rgba[i][RCOMP] * 15.0F) )
- | (F_TO_I(rgba[i][GCOMP] * 15.0F) << 4)
- | (F_TO_I(rgba[i][BCOMP] * 15.0F) << 8)
- | (F_TO_I(rgba[i][ACOMP] * 15.0F) << 12);
- }
- }
- else if (dstFormat == GL_BGRA) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (F_TO_I(rgba[i][BCOMP] * 15.0F) )
- | (F_TO_I(rgba[i][GCOMP] * 15.0F) << 4)
- | (F_TO_I(rgba[i][RCOMP] * 15.0F) << 8)
- | (F_TO_I(rgba[i][ACOMP] * 15.0F) << 12);
- }
- }
- else if (dstFormat == GL_ABGR_EXT) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (F_TO_I(rgba[i][ACOMP] * 15.0F) )
- | (F_TO_I(rgba[i][BCOMP] * 15.0F) << 4)
- | (F_TO_I(rgba[i][GCOMP] * 15.0F) << 8)
- | (F_TO_I(rgba[i][RCOMP] * 15.0F) << 12);
- }
- }
- break;
- case GL_UNSIGNED_SHORT_5_5_5_1:
- if (dstFormat == GL_RGBA) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (F_TO_I(rgba[i][RCOMP] * 31.0F) << 11)
- | (F_TO_I(rgba[i][GCOMP] * 31.0F) << 6)
- | (F_TO_I(rgba[i][BCOMP] * 31.0F) << 1)
- | (F_TO_I(rgba[i][ACOMP] * 1.0F) );
- }
- }
- else if (dstFormat == GL_BGRA) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (F_TO_I(rgba[i][BCOMP] * 31.0F) << 11)
- | (F_TO_I(rgba[i][GCOMP] * 31.0F) << 6)
- | (F_TO_I(rgba[i][RCOMP] * 31.0F) << 1)
- | (F_TO_I(rgba[i][ACOMP] * 1.0F) );
- }
- }
- else if (dstFormat == GL_ABGR_EXT) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (F_TO_I(rgba[i][ACOMP] * 31.0F) << 11)
- | (F_TO_I(rgba[i][BCOMP] * 31.0F) << 6)
- | (F_TO_I(rgba[i][GCOMP] * 31.0F) << 1)
- | (F_TO_I(rgba[i][RCOMP] * 1.0F) );
- }
- }
- break;
- case GL_UNSIGNED_SHORT_1_5_5_5_REV:
- if (dstFormat == GL_RGBA) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (F_TO_I(rgba[i][RCOMP] * 31.0F) )
- | (F_TO_I(rgba[i][GCOMP] * 31.0F) << 5)
- | (F_TO_I(rgba[i][BCOMP] * 31.0F) << 10)
- | (F_TO_I(rgba[i][ACOMP] * 1.0F) << 15);
- }
- }
- else if (dstFormat == GL_BGRA) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (F_TO_I(rgba[i][BCOMP] * 31.0F) )
- | (F_TO_I(rgba[i][GCOMP] * 31.0F) << 5)
- | (F_TO_I(rgba[i][RCOMP] * 31.0F) << 10)
- | (F_TO_I(rgba[i][ACOMP] * 1.0F) << 15);
- }
- }
- else if (dstFormat == GL_ABGR_EXT) {
- GLushort *dst = (GLushort *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (F_TO_I(rgba[i][ACOMP] * 31.0F) )
- | (F_TO_I(rgba[i][BCOMP] * 31.0F) << 5)
- | (F_TO_I(rgba[i][GCOMP] * 31.0F) << 10)
- | (F_TO_I(rgba[i][RCOMP] * 1.0F) << 15);
- }
- }
- break;
- case GL_UNSIGNED_INT_8_8_8_8:
- if (dstFormat == GL_RGBA) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (F_TO_I(rgba[i][RCOMP] * 255.F) << 24)
- | (F_TO_I(rgba[i][GCOMP] * 255.F) << 16)
- | (F_TO_I(rgba[i][BCOMP] * 255.F) << 8)
- | (F_TO_I(rgba[i][ACOMP] * 255.F) );
- }
- }
- else if (dstFormat == GL_BGRA) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (F_TO_I(rgba[i][BCOMP] * 255.F) << 24)
- | (F_TO_I(rgba[i][GCOMP] * 255.F) << 16)
- | (F_TO_I(rgba[i][RCOMP] * 255.F) << 8)
- | (F_TO_I(rgba[i][ACOMP] * 255.F) );
- }
- }
- else if (dstFormat == GL_ABGR_EXT) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (F_TO_I(rgba[i][ACOMP] * 255.F) << 24)
- | (F_TO_I(rgba[i][BCOMP] * 255.F) << 16)
- | (F_TO_I(rgba[i][GCOMP] * 255.F) << 8)
- | (F_TO_I(rgba[i][RCOMP] * 255.F) );
- }
- }
- break;
- case GL_UNSIGNED_INT_8_8_8_8_REV:
- if (dstFormat == GL_RGBA) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (F_TO_I(rgba[i][RCOMP] * 255.0F) )
- | (F_TO_I(rgba[i][GCOMP] * 255.0F) << 8)
- | (F_TO_I(rgba[i][BCOMP] * 255.0F) << 16)
- | (F_TO_I(rgba[i][ACOMP] * 255.0F) << 24);
- }
- }
- else if (dstFormat == GL_BGRA) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (F_TO_I(rgba[i][BCOMP] * 255.0F) )
- | (F_TO_I(rgba[i][GCOMP] * 255.0F) << 8)
- | (F_TO_I(rgba[i][RCOMP] * 255.0F) << 16)
- | (F_TO_I(rgba[i][ACOMP] * 255.0F) << 24);
- }
- }
- else if (dstFormat == GL_ABGR_EXT) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (F_TO_I(rgba[i][ACOMP] * 255.0F) )
- | (F_TO_I(rgba[i][BCOMP] * 255.0F) << 8)
- | (F_TO_I(rgba[i][GCOMP] * 255.0F) << 16)
- | (F_TO_I(rgba[i][RCOMP] * 255.0F) << 24);
- }
- }
- break;
- case GL_UNSIGNED_INT_10_10_10_2:
- if (dstFormat == GL_RGBA) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (F_TO_I(rgba[i][RCOMP] * 1023.0F) << 22)
- | (F_TO_I(rgba[i][GCOMP] * 1023.0F) << 12)
- | (F_TO_I(rgba[i][BCOMP] * 1023.0F) << 2)
- | (F_TO_I(rgba[i][ACOMP] * 3.0F) );
- }
- }
- else if (dstFormat == GL_BGRA) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (F_TO_I(rgba[i][BCOMP] * 1023.0F) << 22)
- | (F_TO_I(rgba[i][GCOMP] * 1023.0F) << 12)
- | (F_TO_I(rgba[i][RCOMP] * 1023.0F) << 2)
- | (F_TO_I(rgba[i][ACOMP] * 3.0F) );
- }
- }
- else if (dstFormat == GL_ABGR_EXT) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (F_TO_I(rgba[i][ACOMP] * 1023.0F) << 22)
- | (F_TO_I(rgba[i][BCOMP] * 1023.0F) << 12)
- | (F_TO_I(rgba[i][GCOMP] * 1023.0F) << 2)
- | (F_TO_I(rgba[i][RCOMP] * 3.0F) );
- }
- }
- break;
- case GL_UNSIGNED_INT_2_10_10_10_REV:
- if (dstFormat == GL_RGBA) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (F_TO_I(rgba[i][RCOMP] * 1023.0F) )
- | (F_TO_I(rgba[i][GCOMP] * 1023.0F) << 10)
- | (F_TO_I(rgba[i][BCOMP] * 1023.0F) << 20)
- | (F_TO_I(rgba[i][ACOMP] * 3.0F) << 30);
- }
- }
- else if (dstFormat == GL_BGRA) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (F_TO_I(rgba[i][BCOMP] * 1023.0F) )
- | (F_TO_I(rgba[i][GCOMP] * 1023.0F) << 10)
- | (F_TO_I(rgba[i][RCOMP] * 1023.0F) << 20)
- | (F_TO_I(rgba[i][ACOMP] * 3.0F) << 30);
- }
- }
- else if (dstFormat == GL_ABGR_EXT) {
- GLuint *dst = (GLuint *) dstAddr;
- for (i=0;i<n;i++) {
- dst[i] = (F_TO_I(rgba[i][ACOMP] * 1023.0F) )
- | (F_TO_I(rgba[i][BCOMP] * 1023.0F) << 10)
- | (F_TO_I(rgba[i][GCOMP] * 1023.0F) << 20)
- | (F_TO_I(rgba[i][RCOMP] * 3.0F) << 30);
- }
- }
- break;
- case GL_UNSIGNED_INT_5_9_9_9_REV:
- {
- GLuint *dst = (GLuint *) dstAddr;
- for (i = 0; i < n; i++) {
- dst[i] = float3_to_rgb9e5(rgba[i]);
- }
- }
- break;
- case GL_UNSIGNED_INT_10F_11F_11F_REV:
- {
- GLuint *dst = (GLuint *) dstAddr;
- for (i = 0; i < n; i++) {
- dst[i] = float3_to_r11g11b10f(rgba[i]);
- }
- }
- break;
- default:
- _mesa_problem(ctx, "bad type in _mesa_pack_rgba_span_float");
- free(luminance);
- return;
- }
-
- if (dstPacking->SwapBytes) {
- GLint swapSize = _mesa_sizeof_packed_type(dstType);
- if (swapSize == 2) {
- _mesa_swap2((GLushort *) dstAddr, n * comps);
- }
- else if (swapSize == 4) {
- _mesa_swap4((GLuint *) dstAddr, n * comps);
- }
- }
-
- free(luminance);
-}
-
-
-
-#define SWAP2BYTE(VALUE) \
- { \
- GLubyte *bytes = (GLubyte *) &(VALUE); \
- GLubyte tmp = bytes[0]; \
- bytes[0] = bytes[1]; \
- bytes[1] = tmp; \
- }
-
-#define SWAP4BYTE(VALUE) \
- { \
- GLubyte *bytes = (GLubyte *) &(VALUE); \
- GLubyte tmp = bytes[0]; \
- bytes[0] = bytes[3]; \
- bytes[3] = tmp; \
- tmp = bytes[1]; \
- bytes[1] = bytes[2]; \
- bytes[2] = tmp; \
- }
-
-
-static void
-extract_uint_indexes(GLuint n, GLuint indexes[],
- GLenum srcFormat, GLenum srcType, const GLvoid *src,
- const struct gl_pixelstore_attrib *unpack )
-{
- ASSERT(srcFormat == GL_COLOR_INDEX || srcFormat == GL_STENCIL_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_UNSIGNED_INT_24_8_EXT ||
- srcType == GL_HALF_FLOAT_ARB ||
- srcType == GL_FLOAT ||
- srcType == GL_FLOAT_32_UNSIGNED_INT_24_8_REV);
-
- switch (srcType) {
- case GL_BITMAP:
- {
- GLubyte *ubsrc = (GLubyte *) src;
- if (unpack->LsbFirst) {
- GLubyte mask = 1 << (unpack->SkipPixels & 0x7);
- GLuint i;
- for (i = 0; i < n; i++) {
- indexes[i] = (*ubsrc & mask) ? 1 : 0;
- if (mask == 128) {
- mask = 1;
- ubsrc++;
- }
- else {
- mask = mask << 1;
- }
- }
- }
- else {
- GLubyte mask = 128 >> (unpack->SkipPixels & 0x7);
- GLuint i;
- for (i = 0; i < n; i++) {
- indexes[i] = (*ubsrc & mask) ? 1 : 0;
- if (mask == 1) {
- mask = 128;
- ubsrc++;
- }
- else {
- mask = mask >> 1;
- }
- }
- }
- }
- break;
- case GL_UNSIGNED_BYTE:
- {
- GLuint i;
- const GLubyte *s = (const GLubyte *) src;
- for (i = 0; i < n; i++)
- indexes[i] = s[i];
- }
- break;
- case GL_BYTE:
- {
- GLuint i;
- const GLbyte *s = (const GLbyte *) src;
- for (i = 0; i < n; i++)
- indexes[i] = s[i];
- }
- break;
- case GL_UNSIGNED_SHORT:
- {
- GLuint i;
- const GLushort *s = (const GLushort *) src;
- if (unpack->SwapBytes) {
- for (i = 0; i < n; i++) {
- GLushort value = s[i];
- SWAP2BYTE(value);
- indexes[i] = value;
- }
- }
- else {
- for (i = 0; i < n; i++)
- indexes[i] = s[i];
- }
- }
- break;
- case GL_SHORT:
- {
- GLuint i;
- const GLshort *s = (const GLshort *) src;
- if (unpack->SwapBytes) {
- for (i = 0; i < n; i++) {
- GLshort value = s[i];
- SWAP2BYTE(value);
- indexes[i] = value;
- }
- }
- else {
- for (i = 0; i < n; i++)
- indexes[i] = s[i];
- }
- }
- break;
- case GL_UNSIGNED_INT:
- {
- GLuint i;
- const GLuint *s = (const GLuint *) src;
- if (unpack->SwapBytes) {
- for (i = 0; i < n; i++) {
- GLuint value = s[i];
- SWAP4BYTE(value);
- indexes[i] = value;
- }
- }
- else {
- for (i = 0; i < n; i++)
- indexes[i] = s[i];
- }
- }
- break;
- case GL_INT:
- {
- GLuint i;
- const GLint *s = (const GLint *) src;
- if (unpack->SwapBytes) {
- for (i = 0; i < n; i++) {
- GLint value = s[i];
- SWAP4BYTE(value);
- indexes[i] = value;
- }
- }
- else {
- for (i = 0; i < n; i++)
- indexes[i] = s[i];
- }
- }
- break;
- case GL_FLOAT:
- {
- GLuint i;
- const GLfloat *s = (const GLfloat *) src;
- if (unpack->SwapBytes) {
- for (i = 0; i < n; i++) {
- GLfloat value = s[i];
- SWAP4BYTE(value);
- indexes[i] = (GLuint) value;
- }
- }
- else {
- for (i = 0; i < n; i++)
- indexes[i] = (GLuint) s[i];
- }
- }
- break;
- case GL_HALF_FLOAT_ARB:
- {
- GLuint i;
- const GLhalfARB *s = (const GLhalfARB *) src;
- if (unpack->SwapBytes) {
- for (i = 0; i < n; i++) {
- GLhalfARB value = s[i];
- SWAP2BYTE(value);
- indexes[i] = (GLuint) _mesa_half_to_float(value);
- }
- }
- else {
- for (i = 0; i < n; i++)
- indexes[i] = (GLuint) _mesa_half_to_float(s[i]);
- }
- }
- break;
- case GL_UNSIGNED_INT_24_8_EXT:
- {
- GLuint i;
- const GLuint *s = (const GLuint *) src;
- if (unpack->SwapBytes) {
- for (i = 0; i < n; i++) {
- GLuint value = s[i];
- SWAP4BYTE(value);
- indexes[i] = value & 0xff; /* lower 8 bits */
- }
- }
- else {
- for (i = 0; i < n; i++)
- indexes[i] = s[i] & 0xff; /* lower 8 bits */
- }
- }
- break;
- case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
- {
- GLuint i;
- const GLuint *s = (const GLuint *) src;
- if (unpack->SwapBytes) {
- for (i = 0; i < n; i++) {
- GLuint value = s[i*2+1];
- SWAP4BYTE(value);
- indexes[i] = value & 0xff; /* lower 8 bits */
- }
- }
- else {
- for (i = 0; i < n; i++)
- indexes[i] = s[i*2+1] & 0xff; /* lower 8 bits */
- }
- }
- break;
-
- default:
- _mesa_problem(NULL, "bad srcType in extract_uint_indexes");
- return;
- }
-}
-
-
-/**
- * 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;
- case GL_DU8DV8_ATI:
- case GL_DUDV_ATI:
- *rSrc = 0;
- *gSrc = 1;
- *bSrc = -1;
- *aSrc = -1;
- 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_DU8DV8_ATI ||
- srcFormat == GL_DUDV_ATI ||
- 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_FLOATZ);
- PROCESS(gSrc, GCOMP, 0.0F, 0, GLbyte, BYTE_TO_FLOATZ);
- PROCESS(bSrc, BCOMP, 0.0F, 0, GLbyte, BYTE_TO_FLOATZ);
- PROCESS(aSrc, ACOMP, 1.0F, 127, GLbyte, BYTE_TO_FLOATZ);
- 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_FLOATZ);
- PROCESS(gSrc, GCOMP, 0.0F, 0, GLshort, SHORT_TO_FLOATZ);
- PROCESS(bSrc, BCOMP, 0.0F, 0, GLshort, SHORT_TO_FLOATZ);
- PROCESS(aSrc, ACOMP, 1.0F, 32767, GLshort, SHORT_TO_FLOATZ);
- 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)
-{
- return f < 0.0F ? 0 : F_TO_I(f);
-}
-
-
-static inline GLuint
-clamp_half_to_uint(GLhalfARB h)
-{
- GLfloat f = _mesa_half_to_float(h);
- return f < 0.0F ? 0 : F_TO_I(f);
-}
-
-
-/**
- * \sa extract_float_rgba()
- */
-static void
-extract_uint_rgba(GLuint n, GLuint rgba[][4],
- GLenum srcFormat, GLenum srcType, const GLvoid *src,
- GLboolean swapBytes)
-{
- GLint rSrc, gSrc, bSrc, aSrc;
- GLint stride;
- GLint rDst, bDst, gDst, aDst;
-
- 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_DU8DV8_ATI ||
- srcFormat == GL_DUDV_ATI ||
- srcFormat == GL_RED_INTEGER_EXT ||
- srcFormat == GL_RG_INTEGER ||
- srcFormat == GL_GREEN_INTEGER_EXT ||
- srcFormat == GL_BLUE_INTEGER_EXT ||
- srcFormat == GL_ALPHA_INTEGER_EXT ||
- 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);
-
-#define PROCESS(SRC_INDEX, DST_INDEX, DEFAULT, TYPE, CONVERSION) \
- if ((SRC_INDEX) < 0) { \
- GLuint i; \
- for (i = 0; i < n; i++) { \
- rgba[i][DST_INDEX] = DEFAULT; \
- } \
- } \
- 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); \
- } \
- rgba[i][DST_INDEX] = CONVERSION(value); \
- s += stride; \
- } \
- } \
- else { \
- const TYPE *s = (const TYPE *) src; \
- GLuint i; \
- for (i = 0; i < n; i++) { \
- rgba[i][DST_INDEX] = CONVERSION(s[SRC_INDEX]); \
- s += stride; \
- } \
- }
-
- switch (srcType) {
- case GL_UNSIGNED_BYTE:
- PROCESS(rSrc, RCOMP, 0, GLubyte, (GLuint));
- PROCESS(gSrc, GCOMP, 0, GLubyte, (GLuint));
- PROCESS(bSrc, BCOMP, 0, GLubyte, (GLuint));
- PROCESS(aSrc, ACOMP, 1, GLubyte, (GLuint));
- break;
- case GL_BYTE:
- PROCESS(rSrc, RCOMP, 0, GLbyte, (GLuint));
- PROCESS(gSrc, GCOMP, 0, GLbyte, (GLuint));
- PROCESS(bSrc, BCOMP, 0, GLbyte, (GLuint));
- PROCESS(aSrc, ACOMP, 1, GLbyte, (GLuint));
- break;
- case GL_UNSIGNED_SHORT:
- PROCESS(rSrc, RCOMP, 0, GLushort, (GLuint));
- PROCESS(gSrc, GCOMP, 0, GLushort, (GLuint));
- PROCESS(bSrc, BCOMP, 0, GLushort, (GLuint));
- PROCESS(aSrc, ACOMP, 1, GLushort, (GLuint));
- break;
- case GL_SHORT:
- PROCESS(rSrc, RCOMP, 0, GLshort, (GLuint));
- PROCESS(gSrc, GCOMP, 0, GLshort, (GLuint));
- PROCESS(bSrc, BCOMP, 0, GLshort, (GLuint));
- PROCESS(aSrc, ACOMP, 1, GLshort, (GLuint));
- break;
- case GL_UNSIGNED_INT:
- PROCESS(rSrc, RCOMP, 0, GLuint, (GLuint));
- PROCESS(gSrc, GCOMP, 0, GLuint, (GLuint));
- PROCESS(bSrc, BCOMP, 0, GLuint, (GLuint));
- PROCESS(aSrc, ACOMP, 1, GLuint, (GLuint));
- break;
- case GL_INT:
- PROCESS(rSrc, RCOMP, 0, GLint, (GLuint));
- PROCESS(gSrc, GCOMP, 0, GLint, (GLuint));
- PROCESS(bSrc, BCOMP, 0, GLint, (GLuint));
- PROCESS(aSrc, ACOMP, 1, GLint, (GLuint));
- break;
- case GL_FLOAT:
- PROCESS(rSrc, RCOMP, 0, GLfloat, clamp_float_to_uint);
- PROCESS(gSrc, GCOMP, 0, GLfloat, clamp_float_to_uint);
- PROCESS(bSrc, BCOMP, 0, GLfloat, clamp_float_to_uint);
- PROCESS(aSrc, ACOMP, 1, GLfloat, clamp_float_to_uint);
- break;
- case GL_HALF_FLOAT_ARB:
- PROCESS(rSrc, RCOMP, 0, GLhalfARB, clamp_half_to_uint);
- PROCESS(gSrc, GCOMP, 0, GLhalfARB, clamp_half_to_uint);
- PROCESS(bSrc, BCOMP, 0, GLhalfARB, clamp_half_to_uint);
- PROCESS(aSrc, ACOMP, 1, GLhalfARB, clamp_half_to_uint);
- break;
- case GL_UNSIGNED_BYTE_3_3_2:
- {
- const GLubyte *ubsrc = (const GLubyte *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLubyte p = ubsrc[i];
- rgba[i][rDst] = ((p >> 5) );
- rgba[i][gDst] = ((p >> 2) & 0x7);
- rgba[i][bDst] = ((p ) & 0x3);
- rgba[i][aDst] = 1;
- }
- }
- break;
- case GL_UNSIGNED_BYTE_2_3_3_REV:
- {
- const GLubyte *ubsrc = (const GLubyte *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLubyte p = ubsrc[i];
- rgba[i][rDst] = ((p ) & 0x7);
- rgba[i][gDst] = ((p >> 3) & 0x7);
- rgba[i][bDst] = ((p >> 6) );
- rgba[i][aDst] = 1;
- }
- }
- break;
- case GL_UNSIGNED_SHORT_5_6_5:
- 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) );
- rgba[i][gDst] = ((p >> 5) & 0x3f);
- rgba[i][bDst] = ((p ) & 0x1f);
- rgba[i][aDst] = 1;
- }
- }
- else {
- const GLushort *ussrc = (const GLushort *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLushort p = ussrc[i];
- rgba[i][rDst] = ((p >> 11) );
- rgba[i][gDst] = ((p >> 5) & 0x3f);
- rgba[i][bDst] = ((p ) & 0x1f);
- rgba[i][aDst] = 1;
- }
- }
- break;
- case GL_UNSIGNED_SHORT_5_6_5_REV:
- 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);
- rgba[i][gDst] = ((p >> 5) & 0x3f);
- rgba[i][bDst] = ((p >> 11) );
- rgba[i][aDst] = 1;
- }
- }
- else {
- const GLushort *ussrc = (const GLushort *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLushort p = ussrc[i];
- rgba[i][rDst] = ((p ) & 0x1f);
- rgba[i][gDst] = ((p >> 5) & 0x3f);
- rgba[i][bDst] = ((p >> 11) );
- rgba[i][aDst] = 1;
- }
- }
- break;
- case GL_UNSIGNED_SHORT_4_4_4_4:
- 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) );
- rgba[i][gDst] = ((p >> 8) & 0xf);
- rgba[i][bDst] = ((p >> 4) & 0xf);
- rgba[i][aDst] = ((p ) & 0xf);
- }
- }
- else {
- const GLushort *ussrc = (const GLushort *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLushort p = ussrc[i];
- rgba[i][rDst] = ((p >> 12) );
- rgba[i][gDst] = ((p >> 8) & 0xf);
- rgba[i][bDst] = ((p >> 4) & 0xf);
- rgba[i][aDst] = ((p ) & 0xf);
- }
- }
- break;
- case GL_UNSIGNED_SHORT_4_4_4_4_REV:
- 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);
- rgba[i][gDst] = ((p >> 4) & 0xf);
- rgba[i][bDst] = ((p >> 8) & 0xf);
- rgba[i][aDst] = ((p >> 12) );
- }
- }
- else {
- const GLushort *ussrc = (const GLushort *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLushort p = ussrc[i];
- rgba[i][rDst] = ((p ) & 0xf);
- rgba[i][gDst] = ((p >> 4) & 0xf);
- rgba[i][bDst] = ((p >> 8) & 0xf);
- rgba[i][aDst] = ((p >> 12) );
- }
- }
- break;
- case GL_UNSIGNED_SHORT_5_5_5_1:
- 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) );
- rgba[i][gDst] = ((p >> 6) & 0x1f);
- rgba[i][bDst] = ((p >> 1) & 0x1f);
- rgba[i][aDst] = ((p ) & 0x1 );
- }
- }
- else {
- const GLushort *ussrc = (const GLushort *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLushort p = ussrc[i];
- rgba[i][rDst] = ((p >> 11) );
- rgba[i][gDst] = ((p >> 6) & 0x1f);
- rgba[i][bDst] = ((p >> 1) & 0x1f);
- rgba[i][aDst] = ((p ) & 0x1 );
- }
- }
- break;
- case GL_UNSIGNED_SHORT_1_5_5_5_REV:
- 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);
- rgba[i][gDst] = ((p >> 5) & 0x1f);
- rgba[i][bDst] = ((p >> 10) & 0x1f);
- rgba[i][aDst] = ((p >> 15) );
- }
- }
- else {
- const GLushort *ussrc = (const GLushort *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLushort p = ussrc[i];
- rgba[i][rDst] = ((p ) & 0x1f);
- rgba[i][gDst] = ((p >> 5) & 0x1f);
- rgba[i][bDst] = ((p >> 10) & 0x1f);
- rgba[i][aDst] = ((p >> 15) );
- }
- }
- break;
- case GL_UNSIGNED_INT_8_8_8_8:
- if (swapBytes) {
- const GLuint *uisrc = (const GLuint *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLuint p = uisrc[i];
- rgba[i][rDst] = ((p ) & 0xff);
- rgba[i][gDst] = ((p >> 8) & 0xff);
- rgba[i][bDst] = ((p >> 16) & 0xff);
- rgba[i][aDst] = ((p >> 24) );
- }
- }
- else {
- const GLuint *uisrc = (const GLuint *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLuint p = uisrc[i];
- rgba[i][rDst] = ((p >> 24) );
- rgba[i][gDst] = ((p >> 16) & 0xff);
- rgba[i][bDst] = ((p >> 8) & 0xff);
- rgba[i][aDst] = ((p ) & 0xff);
- }
- }
- break;
- case GL_UNSIGNED_INT_8_8_8_8_REV:
- if (swapBytes) {
- const GLuint *uisrc = (const GLuint *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLuint p = uisrc[i];
- rgba[i][rDst] = ((p >> 24) );
- rgba[i][gDst] = ((p >> 16) & 0xff);
- rgba[i][bDst] = ((p >> 8) & 0xff);
- rgba[i][aDst] = ((p ) & 0xff);
- }
- }
- else {
- const GLuint *uisrc = (const GLuint *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLuint p = uisrc[i];
- rgba[i][rDst] = ((p ) & 0xff);
- rgba[i][gDst] = ((p >> 8) & 0xff);
- rgba[i][bDst] = ((p >> 16) & 0xff);
- rgba[i][aDst] = ((p >> 24) );
- }
- }
- break;
- case GL_UNSIGNED_INT_10_10_10_2:
- 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) );
- rgba[i][gDst] = ((p >> 12) & 0x3ff);
- rgba[i][bDst] = ((p >> 2) & 0x3ff);
- rgba[i][aDst] = ((p ) & 0x3 );
- }
- }
- else {
- const GLuint *uisrc = (const GLuint *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLuint p = uisrc[i];
- rgba[i][rDst] = ((p >> 22) );
- rgba[i][gDst] = ((p >> 12) & 0x3ff);
- rgba[i][bDst] = ((p >> 2) & 0x3ff);
- rgba[i][aDst] = ((p ) & 0x3 );
- }
- }
- break;
- case GL_UNSIGNED_INT_2_10_10_10_REV:
- 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);
- rgba[i][gDst] = ((p >> 10) & 0x3ff);
- rgba[i][bDst] = ((p >> 20) & 0x3ff);
- rgba[i][aDst] = ((p >> 30) );
- }
- }
- else {
- const GLuint *uisrc = (const GLuint *) src;
- GLuint i;
- for (i = 0; i < n; i ++) {
- GLuint p = uisrc[i];
- rgba[i][rDst] = ((p ) & 0x3ff);
- rgba[i][gDst] = ((p >> 10) & 0x3ff);
- rgba[i][bDst] = ((p >> 20) & 0x3ff);
- rgba[i][aDst] = ((p >> 30) );
- }
- }
- break;
- case GL_UNSIGNED_INT_5_9_9_9_REV:
- if (swapBytes) {
- const GLuint *uisrc = (const GLuint *) src;
- GLuint i;
- float f[3];
- for (i = 0; i < n; i ++) {
- GLuint p = uisrc[i];
- SWAP4BYTE(p);
- rgb9e5_to_float3(p, f);
- rgba[i][rDst] = clamp_float_to_uint(f[0]);
- rgba[i][gDst] = clamp_float_to_uint(f[1]);
- rgba[i][bDst] = clamp_float_to_uint(f[2]);
- rgba[i][aDst] = 1;
- }
- }
- else {
- const GLuint *uisrc = (const GLuint *) src;
- GLuint i;
- float f[3];
- for (i = 0; i < n; i ++) {
- GLuint p = uisrc[i];
- rgb9e5_to_float3(p, f);
- rgba[i][rDst] = clamp_float_to_uint(f[0]);
- rgba[i][gDst] = clamp_float_to_uint(f[1]);
- rgba[i][bDst] = clamp_float_to_uint(f[2]);
- rgba[i][aDst] = 1;
- }
- }
- break;
- case GL_UNSIGNED_INT_10F_11F_11F_REV:
- if (swapBytes) {
- const GLuint *uisrc = (const GLuint *) src;
- GLuint i;
- float f[3];
- for (i = 0; i < n; i ++) {
- GLuint p = uisrc[i];
- SWAP4BYTE(p);
- r11g11b10f_to_float3(p, f);
- rgba[i][rDst] = clamp_float_to_uint(f[0]);
- rgba[i][gDst] = clamp_float_to_uint(f[1]);
- rgba[i][bDst] = clamp_float_to_uint(f[2]);
- rgba[i][aDst] = 1;
- }
- }
- else {
- const GLuint *uisrc = (const GLuint *) src;
- GLuint i;
- float f[3];
- for (i = 0; i < n; i ++) {
- GLuint p = uisrc[i];
- r11g11b10f_to_float3(p, f);
- rgba[i][rDst] = clamp_float_to_uint(f[0]);
- rgba[i][gDst] = clamp_float_to_uint(f[1]);
- rgba[i][bDst] = clamp_float_to_uint(f[2]);
- rgba[i][aDst] = 1;
- }
- }
- break;
- default:
- _mesa_problem(NULL, "bad srcType in extract uint data");
- break;
- }
-#undef PROCESS
-}
-
-
-
-/*
- * Unpack a row of color image data from a client buffer according to
- * the pixel unpacking parameters.
- * Return GLubyte values in the specified dest image format.
- * This is used by glDrawPixels and glTexImage?D().
- * \param ctx - the context
- * n - number of pixels in the span
- * dstFormat - format of destination color array
- * dest - the destination color array
- * srcFormat - source image format
- * srcType - source image data type
- * source - source image pointer
- * srcPacking - pixel unpacking parameters
- * transferOps - bitmask of IMAGE_*_BIT values of operations to apply
- *
- * XXX perhaps expand this to process whole images someday.
- */
-void
-_mesa_unpack_color_span_ubyte(struct gl_context *ctx,
- GLuint n, GLenum dstFormat, GLubyte dest[],
- GLenum srcFormat, GLenum srcType,
- const GLvoid *source,
- const struct gl_pixelstore_attrib *srcPacking,
- GLbitfield transferOps )
-{
- GLboolean intFormat = _mesa_is_enum_format_integer(srcFormat);
- 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_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);
-
- /* 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;
-
- /* Try simple cases first */
- if (transferOps == 0) {
- if (srcType == GL_UNSIGNED_BYTE) {
- if (dstFormat == GL_RGBA) {
- if (srcFormat == GL_RGBA) {
- memcpy( dest, source, n * 4 * sizeof(GLubyte) );
- return;
- }
- else if (srcFormat == GL_RGB) {
- GLuint i;
- const GLubyte *src = (const GLubyte *) source;
- GLubyte *dst = dest;
- for (i = 0; i < n; i++) {
- dst[0] = src[0];
- dst[1] = src[1];
- dst[2] = src[2];
- dst[3] = 255;
- src += 3;
- dst += 4;
- }
- return;
- }
- }
- else if (dstFormat == GL_RGB) {
- if (srcFormat == GL_RGB) {
- memcpy( dest, source, n * 3 * sizeof(GLubyte) );
- return;
- }
- else if (srcFormat == GL_RGBA) {
- GLuint i;
- const GLubyte *src = (const GLubyte *) source;
- GLubyte *dst = dest;
- for (i = 0; i < n; i++) {
- dst[0] = src[0];
- dst[1] = src[1];
- dst[2] = src[2];
- src += 4;
- dst += 3;
- }
- return;
- }
- }
- else if (dstFormat == srcFormat) {
- GLint comps = _mesa_components_in_format(srcFormat);
- assert(comps > 0);
- memcpy( dest, source, n * comps * sizeof(GLubyte) );
- return;
- }
- }
- }
-
-
- /* general solution begins here */
- {
- GLint dstComponents;
- GLint rDst, gDst, bDst, aDst, lDst, iDst;
- GLfloat (*rgba)[4] = malloc(4 * n * sizeof(GLfloat));
-
- 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);
-
- /*
- * 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);
- }
-
- /* Need to clamp if returning GLubytes */
- transferOps |= IMAGE_CLAMP_BIT;
-
- if (transferOps) {
- _mesa_apply_rgba_transfer_ops(ctx, transferOps, n, rgba);
- }
-
- get_component_indexes(dstFormat,
- &rDst, &gDst, &bDst, &aDst, &lDst, &iDst);
-
- /* Now return the GLubyte data in the requested dstFormat */
- if (rDst >= 0) {
- GLubyte *dst = dest;
- GLuint i;
- for (i = 0; i < n; i++) {
- CLAMPED_FLOAT_TO_UBYTE(dst[rDst], rgba[i][RCOMP]);
- dst += dstComponents;
- }
- }
-
- if (gDst >= 0) {
- GLubyte *dst = dest;
- GLuint i;
- for (i = 0; i < n; i++) {
- CLAMPED_FLOAT_TO_UBYTE(dst[gDst], rgba[i][GCOMP]);
- dst += dstComponents;
- }
- }
-
- if (bDst >= 0) {
- GLubyte *dst = dest;
- GLuint i;
- for (i = 0; i < n; i++) {
- CLAMPED_FLOAT_TO_UBYTE(dst[bDst], rgba[i][BCOMP]);
- dst += dstComponents;
- }
- }
-
- if (aDst >= 0) {
- GLubyte *dst = dest;
- GLuint i;
- for (i = 0; i < n; i++) {
- CLAMPED_FLOAT_TO_UBYTE(dst[aDst], rgba[i][ACOMP]);
- dst += dstComponents;
- }
- }
-
- if (iDst >= 0) {
- GLubyte *dst = dest;
- GLuint i;
- assert(iDst == 0);
- assert(dstComponents == 1);
- for (i = 0; i < n; i++) {
- /* Intensity comes from red channel */
- CLAMPED_FLOAT_TO_UBYTE(dst[i], rgba[i][RCOMP]);
- }
- }
-
- if (lDst >= 0) {
- GLubyte *dst = dest;
- GLuint i;
- assert(lDst == 0);
- for (i = 0; i < n; i++) {
- /* Luminance comes from red channel */
- CLAMPED_FLOAT_TO_UBYTE(dst[0], rgba[i][RCOMP]);
- dst += dstComponents;
- }
- }
-
- free(rgba);
- }
-}
-
-
-/**
- * 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);
- }
-}
-
-
-/**
- * Same as _mesa_unpack_color_span_ubyte(), but return GLuint data
- * instead of GLubyte.
- * No pixel transfer ops are applied.
- */
-void
-_mesa_unpack_color_span_uint(struct gl_context *ctx,
- GLuint n, GLenum dstFormat, GLuint *dest,
- GLenum srcFormat, GLenum srcType,
- const GLvoid *source,
- const struct gl_pixelstore_attrib *srcPacking)
-{
- GLuint (*rgba)[4] = malloc(n * 4 * sizeof(GLfloat));
-
- if (!rgba) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel unpacking");
- return;
- }
-
- 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);
-
- 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);
-
-
- /* Extract image data as uint[4] pixels */
- extract_uint_rgba(n, rgba, srcFormat, srcType, source,
- srcPacking->SwapBytes);
-
- if (dstFormat == GL_RGBA) {
- /* simple case */
- memcpy(dest, rgba, 4 * sizeof(GLuint) * n);
- }
- else {
- /* general case */
- GLint rDst, gDst, bDst, aDst, lDst, iDst;
- GLint dstComponents = _mesa_components_in_format( dstFormat );
-
- assert(dstComponents > 0);
-
- get_component_indexes(dstFormat,
- &rDst, &gDst, &bDst, &aDst, &lDst, &iDst);
-
- /* Now pack values in the requested dest format */
- if (rDst >= 0) {
- GLuint *dst = dest;
- GLuint i;
- for (i = 0; i < n; i++) {
- dst[rDst] = rgba[i][RCOMP];
- dst += dstComponents;
- }
- }
-
- if (gDst >= 0) {
- GLuint *dst = dest;
- GLuint i;
- for (i = 0; i < n; i++) {
- dst[gDst] = rgba[i][GCOMP];
- dst += dstComponents;
- }
- }
-
- if (bDst >= 0) {
- GLuint *dst = dest;
- GLuint i;
- for (i = 0; i < n; i++) {
- dst[bDst] = rgba[i][BCOMP];
- dst += dstComponents;
- }
- }
-
- if (aDst >= 0) {
- GLuint *dst = dest;
- GLuint i;
- for (i = 0; i < n; i++) {
- dst[aDst] = rgba[i][ACOMP];
- dst += dstComponents;
- }
- }
-
- if (iDst >= 0) {
- GLuint *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) {
- GLuint *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);
-}
-
-
-
-/**
- * Similar to _mesa_unpack_color_span_float(), but for dudv data instead of rgba,
- * directly return GLbyte data, no transfer ops apply.
- */
-void
-_mesa_unpack_dudv_span_byte( struct gl_context *ctx,
- GLuint n, GLenum dstFormat, GLbyte dest[],
- GLenum srcFormat, GLenum srcType,
- const GLvoid *source,
- const struct gl_pixelstore_attrib *srcPacking,
- GLbitfield transferOps )
-{
- ASSERT(dstFormat == GL_DUDV_ATI);
- ASSERT(srcFormat == GL_DUDV_ATI ||
- srcFormat == GL_DU8DV8_ATI);
-
- 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);
-
- /* general solution */
- {
- GLint dstComponents;
- GLbyte *dst = dest;
- GLuint i;
- GLfloat (*rgba)[4] = malloc(4 * n * sizeof(GLfloat));
-
- 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);
-
- /*
- * Extract image data and convert to RGBA floats
- */
- extract_float_rgba(n, rgba, srcFormat, srcType, source,
- srcPacking->SwapBytes);
-
-
- /* Now determine which color channels we need to produce.
- * And determine the dest index (offset) within each color tuple.
- */
-
- /* Now pack results in the requested dstFormat */
- for (i = 0; i < n; i++) {
- /* not sure - need clamp[-1,1] here? */
- dst[0] = FLOAT_TO_BYTE(rgba[i][RCOMP]);
- dst[1] = FLOAT_TO_BYTE(rgba[i][GCOMP]);
- dst += dstComponents;
- }
-
- free(rgba);
- }
-}
-
-/*
- * Unpack a row of color index data from a client buffer according to
- * the pixel unpacking parameters.
- * This is (or will be) used by glDrawPixels, glTexImage[123]D, etc.
- *
- * Args: ctx - the context
- * n - number of pixels
- * dstType - destination data type
- * dest - destination array
- * srcType - source pixel type
- * source - source data pointer
- * srcPacking - pixel unpacking parameters
- * transferOps - the pixel transfer operations to apply
- */
-void
-_mesa_unpack_index_span( struct gl_context *ctx, GLuint n,
- GLenum dstType, GLvoid *dest,
- GLenum srcType, const GLvoid *source,
- const struct gl_pixelstore_attrib *srcPacking,
- GLbitfield transferOps )
-{
- 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);
-
- ASSERT(dstType == GL_UNSIGNED_BYTE ||
- dstType == GL_UNSIGNED_SHORT ||
- dstType == GL_UNSIGNED_INT);
-
-
- transferOps &= (IMAGE_MAP_COLOR_BIT | IMAGE_SHIFT_OFFSET_BIT);
-
- /*
- * Try simple cases first
- */
- if (transferOps == 0 && srcType == GL_UNSIGNED_BYTE
- && dstType == GL_UNSIGNED_BYTE) {
- memcpy(dest, source, n * sizeof(GLubyte));
- }
- else if (transferOps == 0 && srcType == GL_UNSIGNED_INT
- && dstType == GL_UNSIGNED_INT && !srcPacking->SwapBytes) {
- memcpy(dest, source, n * sizeof(GLuint));
- }
- else {
- /*
- * general solution
- */
- GLuint *indexes = malloc(n * sizeof(GLuint));
-
- if (!indexes) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel unpacking");
- return;
- }
-
- extract_uint_indexes(n, indexes, GL_COLOR_INDEX, srcType, source,
- srcPacking);
-
- if (transferOps)
- _mesa_apply_ci_transfer_ops(ctx, transferOps, n, indexes);
-
- /* convert to dest type */
- switch (dstType) {
- case GL_UNSIGNED_BYTE:
- {
- GLubyte *dst = (GLubyte *) dest;
- GLuint i;
+ break;
+ case GL_SHORT:
+ {
+ GLuint i;
+ const GLshort *s = (const GLshort *) src;
+ if (unpack->SwapBytes) {
for (i = 0; i < n; i++) {
- dst[i] = (GLubyte) (indexes[i] & 0xff);
+ GLshort value = s[i];
+ SWAP2BYTE(value);
+ indexes[i] = value;
}
}
- break;
- case GL_UNSIGNED_SHORT:
- {
- GLuint *dst = (GLuint *) dest;
- GLuint i;
+ else {
+ for (i = 0; i < n; i++)
+ indexes[i] = s[i];
+ }
+ }
+ break;
+ case GL_UNSIGNED_INT:
+ {
+ GLuint i;
+ const GLuint *s = (const GLuint *) src;
+ if (unpack->SwapBytes) {
for (i = 0; i < n; i++) {
- dst[i] = (GLushort) (indexes[i] & 0xffff);
+ GLuint value = s[i];
+ SWAP4BYTE(value);
+ indexes[i] = value;
}
}
- break;
- case GL_UNSIGNED_INT:
- memcpy(dest, indexes, n * sizeof(GLuint));
- break;
- default:
- _mesa_problem(ctx, "bad dstType in _mesa_unpack_index_span");
- }
-
- free(indexes);
- }
-}
-
-
-void
-_mesa_pack_index_span( struct gl_context *ctx, GLuint n,
- GLenum dstType, GLvoid *dest, const GLuint *source,
- const struct gl_pixelstore_attrib *dstPacking,
- GLbitfield transferOps )
-{
- GLuint *indexes = malloc(n * sizeof(GLuint));
-
- if (!indexes) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel packing");
- return;
- }
-
- transferOps &= (IMAGE_MAP_COLOR_BIT | IMAGE_SHIFT_OFFSET_BIT);
-
- if (transferOps & (IMAGE_MAP_COLOR_BIT | IMAGE_SHIFT_OFFSET_BIT)) {
- /* make a copy of input */
- memcpy(indexes, source, n * sizeof(GLuint));
- _mesa_apply_ci_transfer_ops(ctx, transferOps, n, indexes);
- source = indexes;
- }
-
- switch (dstType) {
- case GL_UNSIGNED_BYTE:
- {
- GLubyte *dst = (GLubyte *) dest;
- GLuint i;
- for (i = 0; i < n; i++) {
- *dst++ = (GLubyte) source[i];
- }
- }
- break;
- case GL_BYTE:
- {
- GLbyte *dst = (GLbyte *) dest;
- GLuint i;
- for (i = 0; i < n; i++) {
- dst[i] = (GLbyte) source[i];
- }
- }
- break;
- case GL_UNSIGNED_SHORT:
- {
- GLushort *dst = (GLushort *) dest;
- GLuint i;
- for (i = 0; i < n; i++) {
- dst[i] = (GLushort) source[i];
- }
- if (dstPacking->SwapBytes) {
- _mesa_swap2( (GLushort *) dst, n );
- }
- }
- break;
- case GL_SHORT:
- {
- GLshort *dst = (GLshort *) dest;
- GLuint i;
- for (i = 0; i < n; i++) {
- dst[i] = (GLshort) source[i];
- }
- if (dstPacking->SwapBytes) {
- _mesa_swap2( (GLushort *) dst, n );
- }
- }
- break;
- case GL_UNSIGNED_INT:
- {
- GLuint *dst = (GLuint *) dest;
- GLuint i;
- for (i = 0; i < n; i++) {
- dst[i] = (GLuint) source[i];
- }
- if (dstPacking->SwapBytes) {
- _mesa_swap4( (GLuint *) dst, n );
- }
- }
- break;
- case GL_INT:
- {
- GLint *dst = (GLint *) dest;
- GLuint i;
- for (i = 0; i < n; i++) {
- dst[i] = (GLint) source[i];
+ else {
+ for (i = 0; i < n; i++)
+ indexes[i] = s[i];
+ }
}
- if (dstPacking->SwapBytes) {
- _mesa_swap4( (GLuint *) dst, n );
+ break;
+ case GL_INT:
+ {
+ GLuint i;
+ const GLint *s = (const GLint *) src;
+ if (unpack->SwapBytes) {
+ for (i = 0; i < n; i++) {
+ GLint value = s[i];
+ SWAP4BYTE(value);
+ indexes[i] = value;
+ }
+ }
+ else {
+ for (i = 0; i < n; i++)
+ indexes[i] = s[i];
+ }
}
- }
- break;
- case GL_FLOAT:
- {
- GLfloat *dst = (GLfloat *) dest;
- GLuint i;
- for (i = 0; i < n; i++) {
- dst[i] = (GLfloat) source[i];
+ break;
+ case GL_FLOAT:
+ {
+ GLuint i;
+ const GLfloat *s = (const GLfloat *) src;
+ if (unpack->SwapBytes) {
+ for (i = 0; i < n; i++) {
+ GLfloat value = s[i];
+ SWAP4BYTE(value);
+ indexes[i] = (GLuint) value;
+ }
+ }
+ else {
+ for (i = 0; i < n; i++)
+ indexes[i] = (GLuint) s[i];
+ }
}
- if (dstPacking->SwapBytes) {
- _mesa_swap4( (GLuint *) dst, n );
+ break;
+ case GL_HALF_FLOAT_ARB:
+ case GL_HALF_FLOAT_OES:
+ {
+ GLuint i;
+ const GLhalfARB *s = (const GLhalfARB *) src;
+ if (unpack->SwapBytes) {
+ for (i = 0; i < n; i++) {
+ GLhalfARB value = s[i];
+ SWAP2BYTE(value);
+ indexes[i] = (GLuint) _mesa_half_to_float(value);
+ }
+ }
+ else {
+ for (i = 0; i < n; i++)
+ indexes[i] = (GLuint) _mesa_half_to_float(s[i]);
+ }
}
- }
- break;
- case GL_HALF_FLOAT_ARB:
- {
- GLhalfARB *dst = (GLhalfARB *) dest;
- GLuint i;
- for (i = 0; i < n; i++) {
- dst[i] = _mesa_float_to_half((GLfloat) source[i]);
+ break;
+ case GL_UNSIGNED_INT_24_8_EXT:
+ {
+ GLuint i;
+ const GLuint *s = (const GLuint *) src;
+ if (unpack->SwapBytes) {
+ for (i = 0; i < n; i++) {
+ GLuint value = s[i];
+ SWAP4BYTE(value);
+ indexes[i] = value & 0xff; /* lower 8 bits */
+ }
+ }
+ else {
+ for (i = 0; i < n; i++)
+ indexes[i] = s[i] & 0xff; /* lower 8 bits */
+ }
}
- if (dstPacking->SwapBytes) {
- _mesa_swap2( (GLushort *) dst, n );
+ break;
+ case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
+ {
+ GLuint i;
+ const GLuint *s = (const GLuint *) src;
+ if (unpack->SwapBytes) {
+ for (i = 0; i < n; i++) {
+ GLuint value = s[i*2+1];
+ SWAP4BYTE(value);
+ indexes[i] = value & 0xff; /* lower 8 bits */
+ }
+ }
+ else {
+ for (i = 0; i < n; i++)
+ indexes[i] = s[i*2+1] & 0xff; /* lower 8 bits */
+ }
}
- }
- break;
- default:
- _mesa_problem(ctx, "bad type in _mesa_pack_index_span");
- }
+ break;
- free(indexes);
+ default:
+ unreachable("bad srcType in extract_uint_indexes");
+ }
}
const struct gl_pixelstore_attrib *srcPacking,
GLbitfield transferOps )
{
- ASSERT(srcType == GL_BITMAP ||
+ assert(srcType == GL_BITMAP ||
srcType == GL_UNSIGNED_BYTE ||
srcType == GL_BYTE ||
srcType == GL_UNSIGNED_SHORT ||
srcType == GL_INT ||
srcType == GL_UNSIGNED_INT_24_8_EXT ||
srcType == GL_HALF_FLOAT_ARB ||
+ srcType == GL_HALF_FLOAT_OES ||
srcType == GL_FLOAT ||
srcType == GL_FLOAT_32_UNSIGNED_INT_24_8_REV);
- ASSERT(dstType == GL_UNSIGNED_BYTE ||
+ assert(dstType == GL_UNSIGNED_BYTE ||
dstType == GL_UNSIGNED_SHORT ||
dstType == GL_UNSIGNED_INT ||
dstType == GL_FLOAT_32_UNSIGNED_INT_24_8_REV);
}
break;
default:
- _mesa_problem(ctx, "bad dstType in _mesa_unpack_stencil_span");
+ unreachable("bad dstType in _mesa_unpack_stencil_span");
}
free(indexes);
}
break;
case GL_HALF_FLOAT_ARB:
+ case GL_HALF_FLOAT_OES:
{
GLhalfARB *dst = (GLhalfARB *) dest;
GLuint i;
}
break;
default:
- _mesa_problem(ctx, "bad type in _mesa_pack_index_span");
+ unreachable("bad type in _mesa_pack_index_span");
}
free(stencil);
* back to an int type can introduce errors that will show up as
* artifacts in things like depth peeling which uses glCopyTexImage.
*/
- if (ctx->Pixel.DepthScale == 1.0 && ctx->Pixel.DepthBias == 0.0) {
+ if (ctx->Pixel.DepthScale == 1.0F && ctx->Pixel.DepthBias == 0.0F) {
if (srcType == GL_UNSIGNED_INT && dstType == GL_UNSIGNED_SHORT) {
const GLuint *src = (const GLuint *) source;
GLushort *dst = (GLushort *) dest;
case GL_UNSIGNED_INT_24_8_EXT: /* GL_EXT_packed_depth_stencil */
if (dstType == GL_UNSIGNED_INT_24_8_EXT &&
depthMax == 0xffffff &&
- ctx->Pixel.DepthScale == 1.0 &&
- ctx->Pixel.DepthBias == 0.0) {
+ ctx->Pixel.DepthScale == 1.0F &&
+ ctx->Pixel.DepthBias == 0.0F) {
const GLuint *src = (const GLuint *) source;
GLuint *zValues = (GLuint *) dest;
GLuint i;
needClamp = GL_TRUE;
break;
case GL_HALF_FLOAT_ARB:
+ case GL_HALF_FLOAT_OES:
{
GLuint i;
const GLhalfARB *src = (const GLhalfARB *) source;
{
const GLfloat scale = ctx->Pixel.DepthScale;
const GLfloat bias = ctx->Pixel.DepthBias;
- if (scale != 1.0 || bias != 0.0) {
+ if (scale != 1.0F || bias != 0.0F) {
GLuint i;
for (i = 0; i < n; i++) {
depthValues[i] = depthValues[i] * scale + bias;
if (needClamp) {
GLuint i;
for (i = 0; i < n; i++) {
- depthValues[i] = (GLfloat)CLAMP(depthValues[i], 0.0, 1.0);
+ depthValues[i] = CLAMP(depthValues[i], 0.0F, 1.0F);
}
}
else if (dstType == GL_UNSIGNED_SHORT) {
GLushort *zValues = (GLushort *) dest;
GLuint i;
- ASSERT(depthMax <= 0xffff);
+ assert(depthMax <= 0xffff);
for (i = 0; i < n; i++) {
zValues[i] = (GLushort) (depthValues[i] * (GLfloat) depthMax);
}
}
}
else {
- ASSERT(0);
+ assert(0);
}
free(depthTemp);
return;
}
- if (ctx->Pixel.DepthScale != 1.0 || ctx->Pixel.DepthBias != 0.0) {
+ if (ctx->Pixel.DepthScale != 1.0F || ctx->Pixel.DepthBias != 0.0F) {
memcpy(depthCopy, depthSpan, n * sizeof(GLfloat));
_mesa_scale_and_bias_depth(ctx, n, depthCopy);
depthSpan = depthCopy;
}
}
break;
+ case GL_UNSIGNED_INT_24_8:
+ {
+ const GLdouble scale = (GLdouble) 0xffffff;
+ GLuint *dst = (GLuint *) dest;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ GLuint z = (GLuint) (depthSpan[i] * scale);
+ assert(z <= 0xffffff);
+ dst[i] = (z << 8);
+ }
+ if (dstPacking->SwapBytes) {
+ _mesa_swap4( (GLuint *) dst, n );
+ }
+ break;
+ }
case GL_UNSIGNED_INT:
{
GLuint *dst = (GLuint *) dest;
}
break;
case GL_HALF_FLOAT_ARB:
+ case GL_HALF_FLOAT_OES:
{
GLhalfARB *dst = (GLhalfARB *) dest;
GLuint i;
}
break;
default:
- _mesa_problem(ctx, "bad type in _mesa_pack_depth_span");
+ unreachable("bad type in _mesa_pack_depth_span()");
}
free(depthCopy);
return;
}
- if (ctx->Pixel.DepthScale != 1.0 || ctx->Pixel.DepthBias != 0.0) {
+ if (ctx->Pixel.DepthScale != 1.0F || ctx->Pixel.DepthBias != 0.0F) {
memcpy(depthCopy, depthVals, n * sizeof(GLfloat));
_mesa_scale_and_bias_depth(ctx, n, depthCopy);
depthVals = depthCopy;
-
/**
* Unpack image data. Apply byte swapping, byte flipping (bitmap).
* Return all image data in a contiguous block. This is used when we
for (i = 0; i < width; i++) {
if (*s & srcMask) {
*d |= dstMask;
- }
+ }
if (srcMask == 128) {
srcMask = 1;
s++;
}
else {
dstMask = dstMask >> 1;
- }
+ }
}
}
}
}
}
-
-
-/**
- * If we unpack colors from a luminance surface, we'll get pixel colors
- * such as (l, l, l, a).
- * When we call _mesa_pack_rgba_span_float(format=GL_LUMINANCE), that
- * function will compute L=R+G+B before packing. The net effect is we'll
- * accidentally store luminance values = 3*l.
- * This function compensates for that by converting (aka rebasing) (l,l,l,a)
- * to be (l,0,0,a).
- * It's a similar story for other formats such as LUMINANCE_ALPHA, ALPHA
- * and INTENSITY.
- *
- * Finally, we also need to do this when the actual surface format does
- * not match the logical surface format. For example, suppose the user
- * requests a GL_LUMINANCE texture but the driver stores it as RGBA.
- * Again, we'll get pixel values like (l,l,l,a).
- */
void
-_mesa_rebase_rgba_float(GLuint n, GLfloat rgba[][4], GLenum baseFormat)
+_mesa_pack_luminance_from_rgba_float(GLuint n, GLfloat rgba[][4],
+ GLvoid *dstAddr, GLenum dst_format,
+ GLbitfield transferOps)
{
- GLuint i;
+ int i;
+ GLfloat *dst = (GLfloat *) dstAddr;
- switch (baseFormat) {
- case GL_ALPHA:
- for (i = 0; i < n; i++) {
- rgba[i][RCOMP] = 0.0F;
- rgba[i][GCOMP] = 0.0F;
- rgba[i][BCOMP] = 0.0F;
- }
- break;
- case GL_INTENSITY:
- /* fall-through */
+ switch (dst_format) {
case GL_LUMINANCE:
- for (i = 0; i < n; i++) {
- rgba[i][GCOMP] = 0.0F;
- rgba[i][BCOMP] = 0.0F;
- rgba[i][ACOMP] = 1.0F;
+ if (transferOps & IMAGE_CLAMP_BIT) {
+ for (i = 0; i < n; i++) {
+ GLfloat sum = rgba[i][RCOMP] + rgba[i][GCOMP] + rgba[i][BCOMP];
+ dst[i] = CLAMP(sum, 0.0F, 1.0F);
+ }
+ } else {
+ for (i = 0; i < n; i++) {
+ dst[i] = rgba[i][RCOMP] + rgba[i][GCOMP] + rgba[i][BCOMP];
+ }
}
- break;
+ return;
case GL_LUMINANCE_ALPHA:
- for (i = 0; i < n; i++) {
- rgba[i][GCOMP] = 0.0F;
- rgba[i][BCOMP] = 0.0F;
- }
- break;
- case GL_RGB:
- for (i = 0; i < n; i++) {
- rgba[i][ACOMP] = 1.0F;
- }
- break;
- case GL_RG:
- for (i = 0; i < n; i++) {
- rgba[i][BCOMP] = 0.0F;
- rgba[i][ACOMP] = 1.0F;
- }
- break;
- case GL_RED:
- for (i = 0; i < n; i++) {
- rgba[i][GCOMP] = 0.0F;
- rgba[i][BCOMP] = 0.0F;
- rgba[i][ACOMP] = 1.0F;
+ if (transferOps & IMAGE_CLAMP_BIT) {
+ for (i = 0; i < n; i++) {
+ GLfloat sum = rgba[i][RCOMP] + rgba[i][GCOMP] + rgba[i][BCOMP];
+ dst[2*i] = CLAMP(sum, 0.0F, 1.0F);
+ dst[2*i+1] = rgba[i][ACOMP];
+ }
+ } else {
+ for (i = 0; i < n; i++) {
+ dst[2*i] = rgba[i][RCOMP] + rgba[i][GCOMP] + rgba[i][BCOMP];
+ dst[2*i+1] = rgba[i][ACOMP];
+ }
}
- break;
-
+ return;
default:
- /* no-op */
- ;
+ assert(!"Unsupported format");
+ }
+}
+
+static int32_t
+clamp_sint64_to_sint32(int64_t src)
+{
+ return CLAMP(src, INT32_MIN, INT32_MAX);
+}
+
+static int32_t
+clamp_sint64_to_uint32(int64_t src)
+{
+ return CLAMP(src, 0, UINT32_MAX);
+}
+
+static int32_t
+clamp_uint64_to_uint32(uint64_t src)
+{
+ return MIN2(src, UINT32_MAX);
+}
+
+static int32_t
+clamp_uint64_to_sint32(uint64_t src)
+{
+ return MIN2(src, INT32_MAX);
+}
+
+static int32_t
+convert_integer_luminance64(int64_t src64, int bits,
+ bool dst_is_signed, bool src_is_signed)
+{
+ int32_t src32;
+
+ /* Clamp Luminance value from 64-bit to 32-bit. Consider if we need
+ * any signed<->unsigned conversion too.
+ */
+ if (src_is_signed && dst_is_signed)
+ src32 = clamp_sint64_to_sint32(src64);
+ else if (src_is_signed && !dst_is_signed)
+ src32 = clamp_sint64_to_uint32(src64);
+ else if (!src_is_signed && dst_is_signed)
+ src32 = clamp_uint64_to_sint32(src64);
+ else
+ src32 = clamp_uint64_to_uint32(src64);
+
+ /* If the dst type is < 32-bit, we need an extra clamp */
+ if (bits == 32) {
+ return src32;
+ } else {
+ if (dst_is_signed)
+ return _mesa_signed_to_signed(src32, bits);
+ else
+ return _mesa_unsigned_to_unsigned(src32, bits);
}
}
+static int32_t
+convert_integer(int32_t src, int bits, bool dst_is_signed, bool src_is_signed)
+{
+ if (src_is_signed && dst_is_signed)
+ return _mesa_signed_to_signed(src, bits);
+ else if (src_is_signed && !dst_is_signed)
+ return _mesa_signed_to_unsigned(src, bits);
+ else if (!src_is_signed && dst_is_signed)
+ return _mesa_unsigned_to_signed(src, bits);
+ else
+ return _mesa_unsigned_to_unsigned(src, bits);
+}
-/**
- * As above, but GLuint components.
- */
void
-_mesa_rebase_rgba_uint(GLuint n, GLuint rgba[][4], GLenum baseFormat)
+_mesa_pack_luminance_from_rgba_integer(GLuint n,
+ GLuint rgba[][4], bool rgba_is_signed,
+ GLvoid *dstAddr,
+ GLenum dst_format,
+ GLenum dst_type)
{
- GLuint i;
+ int i;
+ int64_t lum64;
+ int32_t lum32, alpha;
+ bool dst_is_signed;
+ int dst_bits;
+
+ assert(dst_format == GL_LUMINANCE_INTEGER_EXT ||
+ dst_format == GL_LUMINANCE_ALPHA_INTEGER_EXT);
+
+ /* We first compute luminance values as a 64-bit addition of the
+ * 32-bit R,G,B components, then we clamp the result to the dst type size.
+ *
+ * Notice that this operation involves casting the 32-bit R,G,B components
+ * to 64-bit before the addition. Since rgba is defined as a GLuint array
+ * we need to be careful when rgba packs signed data and make sure
+ * that we cast to a 32-bit signed integer values before casting them to
+ * 64-bit signed integers.
+ */
+ dst_is_signed = (dst_type == GL_BYTE || dst_type == GL_SHORT ||
+ dst_type == GL_INT);
- switch (baseFormat) {
- case GL_ALPHA:
- for (i = 0; i < n; i++) {
- rgba[i][RCOMP] = 0;
- rgba[i][GCOMP] = 0;
- rgba[i][BCOMP] = 0;
- }
- break;
- case GL_INTENSITY:
- /* fall-through */
- case GL_LUMINANCE:
- for (i = 0; i < n; i++) {
- rgba[i][GCOMP] = 0;
- rgba[i][BCOMP] = 0;
- rgba[i][ACOMP] = 1;
- }
- break;
- case GL_LUMINANCE_ALPHA:
- for (i = 0; i < n; i++) {
- rgba[i][GCOMP] = 0;
- rgba[i][BCOMP] = 0;
- }
- break;
- case GL_RGB:
- for (i = 0; i < n; i++) {
- rgba[i][ACOMP] = 1;
- }
- break;
- case GL_RG:
+ dst_bits = _mesa_sizeof_type(dst_type) * 8;
+ assert(dst_bits > 0);
+
+ switch (dst_format) {
+ case GL_LUMINANCE_INTEGER_EXT:
for (i = 0; i < n; i++) {
- rgba[i][BCOMP] = 0;
- rgba[i][ACOMP] = 1;
+ if (!rgba_is_signed) {
+ lum64 = (uint64_t) rgba[i][RCOMP] +
+ (uint64_t) rgba[i][GCOMP] +
+ (uint64_t) rgba[i][BCOMP];
+ } else {
+ lum64 = (int64_t) ((int32_t) rgba[i][RCOMP]) +
+ (int64_t) ((int32_t) rgba[i][GCOMP]) +
+ (int64_t) ((int32_t) rgba[i][BCOMP]);
+ }
+ lum32 = convert_integer_luminance64(lum64, dst_bits,
+ dst_is_signed, rgba_is_signed);
+ switch (dst_type) {
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE: {
+ GLbyte *dst = (GLbyte *) dstAddr;
+ dst[i] = lum32;
+ break;
+ }
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT: {
+ GLshort *dst = (GLshort *) dstAddr;
+ dst[i] = lum32;
+ break;
+ }
+ case GL_INT:
+ case GL_UNSIGNED_INT: {
+ GLint *dst = (GLint *) dstAddr;
+ dst[i] = lum32;
+ break;
+ }
+ }
}
- break;
- case GL_RED:
+ return;
+ case GL_LUMINANCE_ALPHA_INTEGER_EXT:
for (i = 0; i < n; i++) {
- rgba[i][GCOMP] = 0;
- rgba[i][BCOMP] = 0;
- rgba[i][ACOMP] = 1;
+ if (!rgba_is_signed) {
+ lum64 = (uint64_t) rgba[i][RCOMP] +
+ (uint64_t) rgba[i][GCOMP] +
+ (uint64_t) rgba[i][BCOMP];
+ } else {
+ lum64 = (int64_t) ((int32_t) rgba[i][RCOMP]) +
+ (int64_t) ((int32_t) rgba[i][GCOMP]) +
+ (int64_t) ((int32_t) rgba[i][BCOMP]);
+ }
+ lum32 = convert_integer_luminance64(lum64, dst_bits,
+ dst_is_signed, rgba_is_signed);
+ alpha = convert_integer(rgba[i][ACOMP], dst_bits,
+ dst_is_signed, rgba_is_signed);
+ switch (dst_type) {
+ case GL_BYTE:
+ case GL_UNSIGNED_BYTE: {
+ GLbyte *dst = (GLbyte *) dstAddr;
+ dst[2*i] = lum32;
+ dst[2*i+1] = alpha;
+ break;
+ }
+ case GL_SHORT:
+ case GL_UNSIGNED_SHORT: {
+ GLshort *dst = (GLshort *) dstAddr;
+ dst[i] = lum32;
+ dst[2*i+1] = alpha;
+ break;
+ }
+ case GL_INT:
+ case GL_UNSIGNED_INT: {
+ GLint *dst = (GLint *) dstAddr;
+ dst[i] = lum32;
+ dst[2*i+1] = alpha;
+ break;
+ }
+ }
}
- default:
- /* no-op */
- ;
+ return;
}
}
+GLfloat *
+_mesa_unpack_color_index_to_rgba_float(struct gl_context *ctx, GLuint dims,
+ const void *src, GLenum srcFormat, GLenum srcType,
+ int srcWidth, int srcHeight, int srcDepth,
+ const struct gl_pixelstore_attrib *srcPacking,
+ GLbitfield transferOps)
+{
+ int count, img;
+ GLuint *indexes;
+ GLfloat *rgba, *dstPtr;
+
+ count = srcWidth * srcHeight;
+ indexes = malloc(count * sizeof(GLuint));
+ if (!indexes) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel unpacking");
+ return NULL;
+ }
+
+ rgba = malloc(4 * count * srcDepth * sizeof(GLfloat));
+ if (!rgba) {
+ free(indexes);
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel unpacking");
+ return NULL;
+ }
+
+ /* Convert indexes to RGBA float */
+ dstPtr = rgba;
+ for (img = 0; img < srcDepth; img++) {
+ const GLubyte *srcPtr =
+ (const GLubyte *) _mesa_image_address(dims, srcPacking, src,
+ srcWidth, srcHeight,
+ srcFormat, srcType,
+ img, 0, 0);
+
+ extract_uint_indexes(count, indexes, srcFormat, srcType, srcPtr, srcPacking);
+
+ if (transferOps & IMAGE_SHIFT_OFFSET_BIT)
+ _mesa_shift_and_offset_ci(ctx, count, indexes);
+
+ _mesa_map_ci_to_rgba(ctx, count, indexes, (float (*)[4])dstPtr);
+ /* Don't do RGBA scale/bias or RGBA->RGBA mapping if starting
+ * with color indexes.
+ */
+ transferOps &= ~(IMAGE_SCALE_BIAS_BIT | IMAGE_MAP_COLOR_BIT);
+ _mesa_apply_rgba_transfer_ops(ctx, transferOps, count, (float (*)[4])dstPtr);
+
+ dstPtr += srcHeight * srcWidth * 4;
+ }
+
+ free(indexes);
+
+ return rgba;
+}
+
+GLubyte *
+_mesa_unpack_color_index_to_rgba_ubyte(struct gl_context *ctx, GLuint dims,
+ const void *src, GLenum srcFormat, GLenum srcType,
+ int srcWidth, int srcHeight, int srcDepth,
+ const struct gl_pixelstore_attrib *srcPacking,
+ GLbitfield transferOps)
+{
+ GLfloat *rgba;
+ GLubyte *dst;
+ int count, i;
+
+ transferOps |= IMAGE_CLAMP_BIT;
+ rgba = _mesa_unpack_color_index_to_rgba_float(ctx, dims,
+ src, srcFormat, srcType,
+ srcWidth, srcHeight, srcDepth,
+ srcPacking, transferOps);
+
+ count = srcWidth * srcHeight * srcDepth;
+ dst = malloc(count * 4 * sizeof(GLubyte));
+ for (i = 0; i < count; i++) {
+ CLAMPED_FLOAT_TO_UBYTE(dst[i * 4 + 0], rgba[i * 4 + 0]);
+ CLAMPED_FLOAT_TO_UBYTE(dst[i * 4 + 1], rgba[i * 4 + 1]);
+ CLAMPED_FLOAT_TO_UBYTE(dst[i * 4 + 2], rgba[i * 4 + 2]);
+ CLAMPED_FLOAT_TO_UBYTE(dst[i * 4 + 3], rgba[i * 4 + 3]);
+ }
+
+ free(rgba);
+
+ return dst;
+}
projects / mesa.git / blobdiff