*/
+/*
+ * XXX: MSVC takes forever to compile this module for x86_64 unless we disable
+ * this global optimization.
+ *
+ * See also:
+ * - http://msdn.microsoft.com/en-us/library/1yk3ydd7.aspx
+ * - http://msdn.microsoft.com/en-us/library/chh3fb0k.aspx
+ */
+#if defined(_MSC_VER) && defined(_M_X64)
+# pragma optimize( "g", off )
+#endif
+
+
#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"
-
-
-/**
- * NOTE:
- * Normally, BYTE_TO_FLOAT(0) returns 0.00392 That causes problems when
- * we later convert the float to a packed integer value (such as for
- * GL_RGB5_A1) because we'll wind up with a non-zero value.
- *
- * We redefine the macros here so zero is handled correctly.
- */
-#undef BYTE_TO_FLOAT
-#define BYTE_TO_FLOAT(B) ((B) == 0 ? 0.0F : ((2.0F * (B) + 1.0F) * (1.0F/255.0F)))
-
-#undef SHORT_TO_FLOAT
-#define SHORT_TO_FLOAT(S) ((S) == 0 ? 0.0F : ((2.0F * (S) + 1.0F) * (1.0F/65535.0F)))
-
-
-
-/** Compute ceiling of integer quotient of A divided by B. */
-#define CEILING( A, B ) ( (A) % (B) == 0 ? (A)/(B) : (A)/(B)+1 )
+#include "glformats.h"
+#include "../../gallium/auxiliary/util/u_format_rgb9e5.h"
+#include "../../gallium/auxiliary/util/u_format_r11g11b10f.h"
/**
/* Alloc dest storage */
bytes = ((width + 7) / 8 * height);
- buffer = (GLubyte *) malloc( bytes );
+ buffer = malloc( bytes );
if (!buffer)
return NULL;
}
+/**
+ * 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()");
+ }
+}
+
+
/**
* For small integer types, return the min and max possible values.
}
}
+/* 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)
+{
+ _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));
+}
-/**
- * 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)
+_mesa_pack_rgba_span_from_uints(struct gl_context *ctx, GLuint n, GLuint rgba[][4],
+ GLenum dstFormat, GLenum dstType,
+ GLvoid *dstAddr)
{
- GLfloat luminance[MAX_WIDTH];
- const GLint comps = _mesa_components_in_format(dstFormat);
- const GLboolean intDstFormat = _mesa_is_integer_format(dstFormat);
GLuint i;
- /* XXX
- * This test should probably go away. Have the caller set/clear the
- * IMAGE_CLAMP_BIT as needed.
- */
- if (dstType != GL_FLOAT || ctx->Color.ClampReadColor == GL_TRUE) {
- if (!intDstFormat) {
- /* need to clamp to [0, 1] */
- transferOps |= IMAGE_CLAMP_BIT;
+ 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) );
+ }
+ }
+ 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) );
+ }
+ }
+ 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) );
+ }
+ } 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);
+ }
+ }
+ 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;
}
+}
- 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);
+/* 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);
}
- }
- 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);
+ 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);
}
- else {
- for (i = 0; i < n; i++) {
- luminance[i] = rgba[i][RCOMP] + rgba[i][GCOMP] + rgba[i][BCOMP];
+ 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);
}
- }
-
- /*
- * 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++) {
+ 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]);
}
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] = (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] = (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] = (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] = (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] = (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];
if (dstFormat == GL_RGB) {
GLubyte *dst = (GLubyte *) dstAddr;
for (i=0;i<n;i++) {
- dst[i] = (IROUND(rgba[i][RCOMP] * 7.0F) << 5)
- | (IROUND(rgba[i][GCOMP] * 7.0F) << 2)
- | (IROUND(rgba[i][BCOMP] * 3.0F) );
+ 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;
if (dstFormat == GL_RGB) {
GLubyte *dst = (GLubyte *) dstAddr;
for (i=0;i<n;i++) {
- dst[i] = (IROUND(rgba[i][RCOMP] * 7.0F) )
- | (IROUND(rgba[i][GCOMP] * 7.0F) << 3)
- | (IROUND(rgba[i][BCOMP] * 3.0F) << 6);
+ 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;
if (dstFormat == GL_RGB) {
GLushort *dst = (GLushort *) dstAddr;
for (i=0;i<n;i++) {
- dst[i] = (IROUND(rgba[i][RCOMP] * 31.0F) << 11)
- | (IROUND(rgba[i][GCOMP] * 63.0F) << 5)
- | (IROUND(rgba[i][BCOMP] * 31.0F) );
+ 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;
if (dstFormat == GL_RGB) {
GLushort *dst = (GLushort *) dstAddr;
for (i=0;i<n;i++) {
- dst[i] = (IROUND(rgba[i][RCOMP] * 31.0F) )
- | (IROUND(rgba[i][GCOMP] * 63.0F) << 5)
- | (IROUND(rgba[i][BCOMP] * 31.0F) << 11);
+ 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;
if (dstFormat == GL_RGBA) {
GLushort *dst = (GLushort *) dstAddr;
for (i=0;i<n;i++) {
- dst[i] = (IROUND(rgba[i][RCOMP] * 15.0F) << 12)
- | (IROUND(rgba[i][GCOMP] * 15.0F) << 8)
- | (IROUND(rgba[i][BCOMP] * 15.0F) << 4)
- | (IROUND(rgba[i][ACOMP] * 15.0F) );
+ 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] = (IROUND(rgba[i][BCOMP] * 15.0F) << 12)
- | (IROUND(rgba[i][GCOMP] * 15.0F) << 8)
- | (IROUND(rgba[i][RCOMP] * 15.0F) << 4)
- | (IROUND(rgba[i][ACOMP] * 15.0F) );
+ 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] = (IROUND(rgba[i][ACOMP] * 15.0F) << 12)
- | (IROUND(rgba[i][BCOMP] * 15.0F) << 8)
- | (IROUND(rgba[i][GCOMP] * 15.0F) << 4)
- | (IROUND(rgba[i][RCOMP] * 15.0F) );
+ 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;
if (dstFormat == GL_RGBA) {
GLushort *dst = (GLushort *) dstAddr;
for (i=0;i<n;i++) {
- dst[i] = (IROUND(rgba[i][RCOMP] * 15.0F) )
- | (IROUND(rgba[i][GCOMP] * 15.0F) << 4)
- | (IROUND(rgba[i][BCOMP] * 15.0F) << 8)
- | (IROUND(rgba[i][ACOMP] * 15.0F) << 12);
+ 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] = (IROUND(rgba[i][BCOMP] * 15.0F) )
- | (IROUND(rgba[i][GCOMP] * 15.0F) << 4)
- | (IROUND(rgba[i][RCOMP] * 15.0F) << 8)
- | (IROUND(rgba[i][ACOMP] * 15.0F) << 12);
+ 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] = (IROUND(rgba[i][ACOMP] * 15.0F) )
- | (IROUND(rgba[i][BCOMP] * 15.0F) << 4)
- | (IROUND(rgba[i][GCOMP] * 15.0F) << 8)
- | (IROUND(rgba[i][RCOMP] * 15.0F) << 12);
+ 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;
if (dstFormat == GL_RGBA) {
GLushort *dst = (GLushort *) dstAddr;
for (i=0;i<n;i++) {
- dst[i] = (IROUND(rgba[i][RCOMP] * 31.0F) << 11)
- | (IROUND(rgba[i][GCOMP] * 31.0F) << 6)
- | (IROUND(rgba[i][BCOMP] * 31.0F) << 1)
- | (IROUND(rgba[i][ACOMP] * 1.0F) );
+ 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] = (IROUND(rgba[i][BCOMP] * 31.0F) << 11)
- | (IROUND(rgba[i][GCOMP] * 31.0F) << 6)
- | (IROUND(rgba[i][RCOMP] * 31.0F) << 1)
- | (IROUND(rgba[i][ACOMP] * 1.0F) );
+ 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] = (IROUND(rgba[i][ACOMP] * 31.0F) << 11)
- | (IROUND(rgba[i][BCOMP] * 31.0F) << 6)
- | (IROUND(rgba[i][GCOMP] * 31.0F) << 1)
- | (IROUND(rgba[i][RCOMP] * 1.0F) );
+ 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;
if (dstFormat == GL_RGBA) {
GLushort *dst = (GLushort *) dstAddr;
for (i=0;i<n;i++) {
- dst[i] = (IROUND(rgba[i][RCOMP] * 31.0F) )
- | (IROUND(rgba[i][GCOMP] * 31.0F) << 5)
- | (IROUND(rgba[i][BCOMP] * 31.0F) << 10)
- | (IROUND(rgba[i][ACOMP] * 1.0F) << 15);
+ 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] = (IROUND(rgba[i][BCOMP] * 31.0F) )
- | (IROUND(rgba[i][GCOMP] * 31.0F) << 5)
- | (IROUND(rgba[i][RCOMP] * 31.0F) << 10)
- | (IROUND(rgba[i][ACOMP] * 1.0F) << 15);
+ 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] = (IROUND(rgba[i][ACOMP] * 31.0F) )
- | (IROUND(rgba[i][BCOMP] * 31.0F) << 5)
- | (IROUND(rgba[i][GCOMP] * 31.0F) << 10)
- | (IROUND(rgba[i][RCOMP] * 1.0F) << 15);
+ 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;
if (dstFormat == GL_RGBA) {
GLuint *dst = (GLuint *) dstAddr;
for (i=0;i<n;i++) {
- dst[i] = (IROUND(rgba[i][RCOMP] * 255.F) << 24)
- | (IROUND(rgba[i][GCOMP] * 255.F) << 16)
- | (IROUND(rgba[i][BCOMP] * 255.F) << 8)
- | (IROUND(rgba[i][ACOMP] * 255.F) );
+ 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] = (IROUND(rgba[i][BCOMP] * 255.F) << 24)
- | (IROUND(rgba[i][GCOMP] * 255.F) << 16)
- | (IROUND(rgba[i][RCOMP] * 255.F) << 8)
- | (IROUND(rgba[i][ACOMP] * 255.F) );
+ 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] = (IROUND(rgba[i][ACOMP] * 255.F) << 24)
- | (IROUND(rgba[i][BCOMP] * 255.F) << 16)
- | (IROUND(rgba[i][GCOMP] * 255.F) << 8)
- | (IROUND(rgba[i][RCOMP] * 255.F) );
+ 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;
if (dstFormat == GL_RGBA) {
GLuint *dst = (GLuint *) dstAddr;
for (i=0;i<n;i++) {
- dst[i] = (IROUND(rgba[i][RCOMP] * 255.0F) )
- | (IROUND(rgba[i][GCOMP] * 255.0F) << 8)
- | (IROUND(rgba[i][BCOMP] * 255.0F) << 16)
- | (IROUND(rgba[i][ACOMP] * 255.0F) << 24);
+ 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] = (IROUND(rgba[i][BCOMP] * 255.0F) )
- | (IROUND(rgba[i][GCOMP] * 255.0F) << 8)
- | (IROUND(rgba[i][RCOMP] * 255.0F) << 16)
- | (IROUND(rgba[i][ACOMP] * 255.0F) << 24);
+ 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] = (IROUND(rgba[i][ACOMP] * 255.0F) )
- | (IROUND(rgba[i][BCOMP] * 255.0F) << 8)
- | (IROUND(rgba[i][GCOMP] * 255.0F) << 16)
- | (IROUND(rgba[i][RCOMP] * 255.0F) << 24);
+ 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;
if (dstFormat == GL_RGBA) {
GLuint *dst = (GLuint *) dstAddr;
for (i=0;i<n;i++) {
- dst[i] = (IROUND(rgba[i][RCOMP] * 1023.0F) << 22)
- | (IROUND(rgba[i][GCOMP] * 1023.0F) << 12)
- | (IROUND(rgba[i][BCOMP] * 1023.0F) << 2)
- | (IROUND(rgba[i][ACOMP] * 3.0F) );
+ 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] = (IROUND(rgba[i][BCOMP] * 1023.0F) << 22)
- | (IROUND(rgba[i][GCOMP] * 1023.0F) << 12)
- | (IROUND(rgba[i][RCOMP] * 1023.0F) << 2)
- | (IROUND(rgba[i][ACOMP] * 3.0F) );
+ 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] = (IROUND(rgba[i][ACOMP] * 1023.0F) << 22)
- | (IROUND(rgba[i][BCOMP] * 1023.0F) << 12)
- | (IROUND(rgba[i][GCOMP] * 1023.0F) << 2)
- | (IROUND(rgba[i][RCOMP] * 3.0F) );
+ 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;
if (dstFormat == GL_RGBA) {
GLuint *dst = (GLuint *) dstAddr;
for (i=0;i<n;i++) {
- dst[i] = (IROUND(rgba[i][RCOMP] * 1023.0F) )
- | (IROUND(rgba[i][GCOMP] * 1023.0F) << 10)
- | (IROUND(rgba[i][BCOMP] * 1023.0F) << 20)
- | (IROUND(rgba[i][ACOMP] * 3.0F) << 30);
+ 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] = (IROUND(rgba[i][BCOMP] * 1023.0F) )
- | (IROUND(rgba[i][GCOMP] * 1023.0F) << 10)
- | (IROUND(rgba[i][RCOMP] * 1023.0F) << 20)
- | (IROUND(rgba[i][ACOMP] * 3.0F) << 30);
+ 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] = (IROUND(rgba[i][ACOMP] * 1023.0F) )
- | (IROUND(rgba[i][BCOMP] * 1023.0F) << 10)
- | (IROUND(rgba[i][GCOMP] * 1023.0F) << 20)
- | (IROUND(rgba[i][RCOMP] * 3.0F) << 30);
+ 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) {
- if (dstPacking->SwapBytes) {
- _mesa_swap2((GLushort *) dstAddr, n * comps);
- }
+ _mesa_swap2((GLushort *) dstAddr, n * comps);
}
else if (swapSize == 4) {
- if (dstPacking->SwapBytes) {
- _mesa_swap4((GLuint *) dstAddr, n * comps);
- }
+ _mesa_swap4((GLuint *) dstAddr, n * comps);
}
}
+
+ free(luminance);
}
srcType == GL_INT ||
srcType == GL_UNSIGNED_INT_24_8_EXT ||
srcType == GL_HALF_FLOAT_ARB ||
- srcType == GL_FLOAT);
+ srcType == GL_FLOAT ||
+ srcType == GL_FLOAT_32_UNSIGNED_INT_24_8_REV);
switch (srcType) {
case GL_BITMAP:
}
}
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");
}
-/*
- * 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?
+/**
+ * Return source/dest RGBA indexes for unpacking pixels.
*/
static void
-extract_float_rgba(GLuint n, GLfloat rgba[][4],
- GLenum srcFormat, GLenum srcType, const GLvoid *src,
- GLboolean swapBytes)
+get_component_mapping(GLenum format,
+ GLint *rSrc,
+ GLint *gSrc,
+ GLint *bSrc,
+ GLint *aSrc,
+ GLint *rDst,
+ GLint *gDst,
+ GLint *bDst,
+ GLint *aDst)
{
- GLint redIndex, greenIndex, blueIndex, alphaIndex;
- GLint stride;
- GLint rComp, bComp, gComp, aComp;
+ 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 */
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 ||
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_2_10_10_10_REV ||
+ srcType == GL_UNSIGNED_INT_5_9_9_9_REV ||
+ srcType == GL_UNSIGNED_INT_10F_11F_11F_REV);
- rComp = gComp = bComp = aComp = -1;
+ get_component_mapping(srcFormat,
+ &rSrc, &gSrc, &bSrc, &aSrc,
+ &rDst, &gDst, &bDst, &aDst);
- switch (srcFormat) {
- case GL_RED:
- case GL_RED_INTEGER_EXT:
- redIndex = 0;
- greenIndex = blueIndex = alphaIndex = -1;
- stride = 1;
- break;
- case GL_GREEN:
- case GL_GREEN_INTEGER_EXT:
- greenIndex = 0;
- redIndex = blueIndex = alphaIndex = -1;
- stride = 1;
- break;
- case GL_BLUE:
- case GL_BLUE_INTEGER_EXT:
- blueIndex = 0;
- redIndex = greenIndex = alphaIndex = -1;
- stride = 1;
- break;
- case GL_ALPHA:
- case GL_ALPHA_INTEGER_EXT:
- redIndex = greenIndex = blueIndex = -1;
- alphaIndex = 0;
- stride = 1;
- break;
- case GL_LUMINANCE:
- case GL_LUMINANCE_INTEGER_EXT:
- redIndex = greenIndex = blueIndex = 0;
- alphaIndex = -1;
- stride = 1;
- break;
- case GL_LUMINANCE_ALPHA:
- case GL_LUMINANCE_ALPHA_INTEGER_EXT:
- redIndex = greenIndex = blueIndex = 0;
- alphaIndex = 1;
- stride = 2;
- break;
- case GL_INTENSITY:
- redIndex = greenIndex = blueIndex = alphaIndex = 0;
- stride = 1;
- break;
- case GL_RG:
- case GL_RG_INTEGER:
- redIndex = 0;
- greenIndex = 1;
- blueIndex = -1;
- alphaIndex = -1;
- rComp = 0;
- gComp = 1;
- bComp = 2;
- aComp = 3;
- stride = 2;
- break;
- case GL_RGB:
- case GL_RGB_INTEGER:
- redIndex = 0;
- greenIndex = 1;
- blueIndex = 2;
- alphaIndex = -1;
- rComp = 0;
- gComp = 1;
- bComp = 2;
- aComp = 3;
- stride = 3;
- break;
- case GL_BGR:
- redIndex = 2;
- greenIndex = 1;
- blueIndex = 0;
- alphaIndex = -1;
- rComp = 2;
- gComp = 1;
- bComp = 0;
- aComp = 3;
- stride = 3;
- break;
- case GL_RGBA:
- case GL_RGBA_INTEGER:
- redIndex = 0;
- greenIndex = 1;
- blueIndex = 2;
- alphaIndex = 3;
- rComp = 0;
- gComp = 1;
- bComp = 2;
- aComp = 3;
- stride = 4;
- break;
- case GL_BGRA:
- redIndex = 2;
- greenIndex = 1;
- blueIndex = 0;
- alphaIndex = 3;
- rComp = 2;
- gComp = 1;
- bComp = 0;
- aComp = 3;
- stride = 4;
- break;
- case GL_ABGR_EXT:
- redIndex = 3;
- greenIndex = 2;
- blueIndex = 1;
- alphaIndex = 0;
- rComp = 3;
- gComp = 2;
- bComp = 1;
- aComp = 0;
- stride = 4;
- break;
- case GL_DU8DV8_ATI:
- case GL_DUDV_ATI:
- redIndex = 0;
- greenIndex = 1;
- blueIndex = -1;
- alphaIndex = -1;
- stride = 2;
- break;
- default:
- _mesa_problem(NULL, "bad srcFormat %s in extract float data",
- _mesa_lookup_enum_by_nr(srcFormat));
- return;
- }
+ stride = _mesa_components_in_format(srcFormat);
- intFormat = _mesa_is_integer_format(srcFormat);
+ intFormat = _mesa_is_enum_format_integer(srcFormat);
-#define PROCESS(INDEX, CHANNEL, DEFAULT, DEFAULT_INT, TYPE, CONVERSION) \
- if ((INDEX) < 0) { \
+#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][CHANNEL] = DEFAULT_INT; \
+ rgba[i][DST_INDEX] = DEFAULT_INT; \
} \
} \
else { \
for (i = 0; i < n; i++) { \
- rgba[i][CHANNEL] = DEFAULT; \
+ rgba[i][DST_INDEX] = DEFAULT_FLT; \
} \
} \
} \
const TYPE *s = (const TYPE *) src; \
GLuint i; \
for (i = 0; i < n; i++) { \
- TYPE value = s[INDEX]; \
+ TYPE value = s[SRC_INDEX]; \
if (sizeof(TYPE) == 2) { \
SWAP2BYTE(value); \
} \
SWAP4BYTE(value); \
} \
if (intFormat) \
- rgba[i][CHANNEL] = (GLfloat) value; \
+ rgba[i][DST_INDEX] = (GLfloat) value; \
else \
- rgba[i][CHANNEL] = (GLfloat) CONVERSION(value); \
+ rgba[i][DST_INDEX] = (GLfloat) CONVERSION(value); \
s += stride; \
} \
} \
GLuint i; \
if (intFormat) { \
for (i = 0; i < n; i++) { \
- rgba[i][CHANNEL] = (GLfloat) s[INDEX]; \
+ rgba[i][DST_INDEX] = (GLfloat) s[SRC_INDEX]; \
s += stride; \
} \
} \
else { \
for (i = 0; i < n; i++) { \
- rgba[i][CHANNEL] = (GLfloat) CONVERSION(s[INDEX]); \
+ rgba[i][DST_INDEX] = (GLfloat) CONVERSION(s[SRC_INDEX]); \
s += stride; \
} \
} \
switch (srcType) {
case GL_UNSIGNED_BYTE:
- PROCESS(redIndex, RCOMP, 0.0F, 0, GLubyte, UBYTE_TO_FLOAT);
- PROCESS(greenIndex, GCOMP, 0.0F, 0, GLubyte, UBYTE_TO_FLOAT);
- PROCESS(blueIndex, BCOMP, 0.0F, 0, GLubyte, UBYTE_TO_FLOAT);
- PROCESS(alphaIndex, ACOMP, 1.0F, 255, GLubyte, UBYTE_TO_FLOAT);
+ 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(redIndex, RCOMP, 0.0F, 0, GLbyte, BYTE_TO_FLOAT);
- PROCESS(greenIndex, GCOMP, 0.0F, 0, GLbyte, BYTE_TO_FLOAT);
- PROCESS(blueIndex, BCOMP, 0.0F, 0, GLbyte, BYTE_TO_FLOAT);
- PROCESS(alphaIndex, ACOMP, 1.0F, 127, GLbyte, BYTE_TO_FLOAT);
+ 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(redIndex, RCOMP, 0.0F, 0, GLushort, USHORT_TO_FLOAT);
- PROCESS(greenIndex, GCOMP, 0.0F, 0, GLushort, USHORT_TO_FLOAT);
- PROCESS(blueIndex, BCOMP, 0.0F, 0, GLushort, USHORT_TO_FLOAT);
- PROCESS(alphaIndex, ACOMP, 1.0F, 0xffff, GLushort, USHORT_TO_FLOAT);
+ 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(redIndex, RCOMP, 0.0F, 0, GLshort, SHORT_TO_FLOAT);
- PROCESS(greenIndex, GCOMP, 0.0F, 0, GLshort, SHORT_TO_FLOAT);
- PROCESS(blueIndex, BCOMP, 0.0F, 0, GLshort, SHORT_TO_FLOAT);
- PROCESS(alphaIndex, ACOMP, 1.0F, 32767, GLshort, SHORT_TO_FLOAT);
+ 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(redIndex, RCOMP, 0.0F, 0, GLuint, UINT_TO_FLOAT);
- PROCESS(greenIndex, GCOMP, 0.0F, 0, GLuint, UINT_TO_FLOAT);
- PROCESS(blueIndex, BCOMP, 0.0F, 0, GLuint, UINT_TO_FLOAT);
- PROCESS(alphaIndex, ACOMP, 1.0F, 0xffffffff, GLuint, UINT_TO_FLOAT);
+ 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(redIndex, RCOMP, 0.0F, 0, GLint, INT_TO_FLOAT);
- PROCESS(greenIndex, GCOMP, 0.0F, 0, GLint, INT_TO_FLOAT);
- PROCESS(blueIndex, BCOMP, 0.0F, 0, GLint, INT_TO_FLOAT);
- PROCESS(alphaIndex, ACOMP, 1.0F, 2147483647, GLint, INT_TO_FLOAT);
+ 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(redIndex, RCOMP, 0.0F, 0.0F, GLfloat, (GLfloat));
- PROCESS(greenIndex, GCOMP, 0.0F, 0.0F, GLfloat, (GLfloat));
- PROCESS(blueIndex, BCOMP, 0.0F, 0.0F, GLfloat, (GLfloat));
- PROCESS(alphaIndex, ACOMP, 1.0F, 1.0F, GLfloat, (GLfloat));
+ 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(redIndex, RCOMP, 0.0F, 0.0F, GLhalfARB, _mesa_half_to_float);
- PROCESS(greenIndex, GCOMP, 0.0F, 0.0F, GLhalfARB, _mesa_half_to_float);
- PROCESS(blueIndex, BCOMP, 0.0F, 0.0F, GLhalfARB, _mesa_half_to_float);
- PROCESS(alphaIndex, ACOMP, 1.0F, 1.0F, GLhalfARB, _mesa_half_to_float);
+ 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:
{
}
for (i = 0; i < n; i ++) {
GLubyte p = ubsrc[i];
- rgba[i][rComp] = ((p >> 5) ) * rs;
- rgba[i][gComp] = ((p >> 2) & 0x7) * gs;
- rgba[i][bComp] = ((p ) & 0x3) * bs;
- rgba[i][aComp] = 1.0F;
+ 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;
}
for (i = 0; i < n; i ++) {
GLubyte p = ubsrc[i];
- rgba[i][rComp] = ((p ) & 0x7) * rs;
- rgba[i][gComp] = ((p >> 3) & 0x7) * gs;
- rgba[i][bComp] = ((p >> 6) ) * bs;
- rgba[i][aComp] = 1.0F;
+ 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;
for (i = 0; i < n; i ++) {
GLushort p = ussrc[i];
SWAP2BYTE(p);
- rgba[i][rComp] = ((p >> 11) ) * rs;
- rgba[i][gComp] = ((p >> 5) & 0x3f) * gs;
- rgba[i][bComp] = ((p ) & 0x1f) * bs;
- rgba[i][aComp] = 1.0F;
+ 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 {
GLuint i;
for (i = 0; i < n; i ++) {
GLushort p = ussrc[i];
- rgba[i][rComp] = ((p >> 11) ) * rs;
- rgba[i][gComp] = ((p >> 5) & 0x3f) * gs;
- rgba[i][bComp] = ((p ) & 0x1f) * bs;
- rgba[i][aComp] = 1.0F;
+ 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;
for (i = 0; i < n; i ++) {
GLushort p = ussrc[i];
SWAP2BYTE(p);
- rgba[i][rComp] = ((p ) & 0x1f) * rs;
- rgba[i][gComp] = ((p >> 5) & 0x3f) * gs;
- rgba[i][bComp] = ((p >> 11) ) * bs;
- rgba[i][aComp] = 1.0F;
+ 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 {
GLuint i;
for (i = 0; i < n; i ++) {
GLushort p = ussrc[i];
- rgba[i][rComp] = ((p ) & 0x1f) * rs;
- rgba[i][gComp] = ((p >> 5) & 0x3f) * gs;
- rgba[i][bComp] = ((p >> 11) ) * bs;
- rgba[i][aComp] = 1.0F;
+ 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;
for (i = 0; i < n; i ++) {
GLushort p = ussrc[i];
SWAP2BYTE(p);
- rgba[i][rComp] = ((p >> 12) ) * rs;
- rgba[i][gComp] = ((p >> 8) & 0xf) * gs;
- rgba[i][bComp] = ((p >> 4) & 0xf) * bs;
- rgba[i][aComp] = ((p ) & 0xf) * as;
+ 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 {
GLuint i;
for (i = 0; i < n; i ++) {
GLushort p = ussrc[i];
- rgba[i][rComp] = ((p >> 12) ) * rs;
- rgba[i][gComp] = ((p >> 8) & 0xf) * gs;
- rgba[i][bComp] = ((p >> 4) & 0xf) * bs;
- rgba[i][aComp] = ((p ) & 0xf) * as;
+ 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;
for (i = 0; i < n; i ++) {
GLushort p = ussrc[i];
SWAP2BYTE(p);
- rgba[i][rComp] = ((p ) & 0xf) * rs;
- rgba[i][gComp] = ((p >> 4) & 0xf) * gs;
- rgba[i][bComp] = ((p >> 8) & 0xf) * bs;
- rgba[i][aComp] = ((p >> 12) ) * as;
+ 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 {
GLuint i;
for (i = 0; i < n; i ++) {
GLushort p = ussrc[i];
- rgba[i][rComp] = ((p ) & 0xf) * rs;
- rgba[i][gComp] = ((p >> 4) & 0xf) * gs;
- rgba[i][bComp] = ((p >> 8) & 0xf) * bs;
- rgba[i][aComp] = ((p >> 12) ) * as;
+ 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;
for (i = 0; i < n; i ++) {
GLushort p = ussrc[i];
SWAP2BYTE(p);
- rgba[i][rComp] = ((p >> 11) ) * rs;
- rgba[i][gComp] = ((p >> 6) & 0x1f) * gs;
- rgba[i][bComp] = ((p >> 1) & 0x1f) * bs;
- rgba[i][aComp] = ((p ) & 0x1) * as;
+ 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 {
GLuint i;
for (i = 0; i < n; i ++) {
GLushort p = ussrc[i];
- rgba[i][rComp] = ((p >> 11) ) * rs;
- rgba[i][gComp] = ((p >> 6) & 0x1f) * gs;
- rgba[i][bComp] = ((p >> 1) & 0x1f) * bs;
- rgba[i][aComp] = ((p ) & 0x1) * as;
+ 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;
for (i = 0; i < n; i ++) {
GLushort p = ussrc[i];
SWAP2BYTE(p);
- rgba[i][rComp] = ((p ) & 0x1f) * rs;
- rgba[i][gComp] = ((p >> 5) & 0x1f) * gs;
- rgba[i][bComp] = ((p >> 10) & 0x1f) * bs;
- rgba[i][aComp] = ((p >> 15) ) * as;
+ 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 {
GLuint i;
for (i = 0; i < n; i ++) {
GLushort p = ussrc[i];
- rgba[i][rComp] = ((p ) & 0x1f) * rs;
- rgba[i][gComp] = ((p >> 5) & 0x1f) * gs;
- rgba[i][bComp] = ((p >> 10) & 0x1f) * bs;
- rgba[i][aComp] = ((p >> 15) ) * as;
+ 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;
if (intFormat) {
for (i = 0; i < n; i ++) {
GLuint p = uisrc[i];
- rgba[i][rComp] = (GLfloat) ((p ) & 0xff);
- rgba[i][gComp] = (GLfloat) ((p >> 8) & 0xff);
- rgba[i][bComp] = (GLfloat) ((p >> 16) & 0xff);
- rgba[i][aComp] = (GLfloat) ((p >> 24) );
+ 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][rComp] = UBYTE_TO_FLOAT((p ) & 0xff);
- rgba[i][gComp] = UBYTE_TO_FLOAT((p >> 8) & 0xff);
- rgba[i][bComp] = UBYTE_TO_FLOAT((p >> 16) & 0xff);
- rgba[i][aComp] = UBYTE_TO_FLOAT((p >> 24) );
+ 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) );
}
}
}
if (intFormat) {
for (i = 0; i < n; i ++) {
GLuint p = uisrc[i];
- rgba[i][rComp] = (GLfloat) ((p >> 24) );
- rgba[i][gComp] = (GLfloat) ((p >> 16) & 0xff);
- rgba[i][bComp] = (GLfloat) ((p >> 8) & 0xff);
- rgba[i][aComp] = (GLfloat) ((p ) & 0xff);
+ 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][rComp] = UBYTE_TO_FLOAT((p >> 24) );
- rgba[i][gComp] = UBYTE_TO_FLOAT((p >> 16) & 0xff);
- rgba[i][bComp] = UBYTE_TO_FLOAT((p >> 8) & 0xff);
- rgba[i][aComp] = UBYTE_TO_FLOAT((p ) & 0xff);
+ 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);
}
}
}
if (intFormat) {
for (i = 0; i < n; i ++) {
GLuint p = uisrc[i];
- rgba[i][rComp] = (GLfloat) ((p >> 24) );
- rgba[i][gComp] = (GLfloat) ((p >> 16) & 0xff);
- rgba[i][bComp] = (GLfloat) ((p >> 8) & 0xff);
- rgba[i][aComp] = (GLfloat) ((p ) & 0xff);
+ 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][rComp] = UBYTE_TO_FLOAT((p >> 24) );
- rgba[i][gComp] = UBYTE_TO_FLOAT((p >> 16) & 0xff);
- rgba[i][bComp] = UBYTE_TO_FLOAT((p >> 8) & 0xff);
- rgba[i][aComp] = UBYTE_TO_FLOAT((p ) & 0xff);
+ 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);
}
}
}
if (intFormat) {
for (i = 0; i < n; i ++) {
GLuint p = uisrc[i];
- rgba[i][rComp] = (GLfloat) ((p ) & 0xff);
- rgba[i][gComp] = (GLfloat) ((p >> 8) & 0xff);
- rgba[i][bComp] = (GLfloat) ((p >> 16) & 0xff);
- rgba[i][aComp] = (GLfloat) ((p >> 24) );
+ 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][rComp] = UBYTE_TO_FLOAT((p ) & 0xff);
- rgba[i][gComp] = UBYTE_TO_FLOAT((p >> 8) & 0xff);
- rgba[i][bComp] = UBYTE_TO_FLOAT((p >> 16) & 0xff);
- rgba[i][aComp] = UBYTE_TO_FLOAT((p >> 24) );
+ 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) );
}
}
}
for (i = 0; i < n; i ++) {
GLuint p = uisrc[i];
SWAP4BYTE(p);
- rgba[i][rComp] = ((p >> 22) ) * rs;
- rgba[i][gComp] = ((p >> 12) & 0x3ff) * gs;
- rgba[i][bComp] = ((p >> 2) & 0x3ff) * bs;
- rgba[i][aComp] = ((p ) & 0x3 ) * as;
+ 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 {
GLuint i;
for (i = 0; i < n; i ++) {
GLuint p = uisrc[i];
- rgba[i][rComp] = ((p >> 22) ) * rs;
- rgba[i][gComp] = ((p >> 12) & 0x3ff) * gs;
- rgba[i][bComp] = ((p >> 2) & 0x3ff) * bs;
- rgba[i][aComp] = ((p ) & 0x3 ) * as;
+ 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;
for (i = 0; i < n; i ++) {
GLuint p = uisrc[i];
SWAP4BYTE(p);
- rgba[i][rComp] = ((p ) & 0x3ff) * rs;
- rgba[i][gComp] = ((p >> 10) & 0x3ff) * gs;
- rgba[i][bComp] = ((p >> 20) & 0x3ff) * bs;
- rgba[i][aComp] = ((p >> 30) ) * as;
+ rgba[i][rDst] = ((p ) & 0x3ff) * rs;
+ rgba[i][gDst] = ((p >> 10) & 0x3ff) * gs;
+ rgba[i][bDst] = ((p >> 20) & 0x3ff) * bs;
+ 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;
+ 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];
- rgba[i][rComp] = ((p ) & 0x3ff) * rs;
- rgba[i][gComp] = ((p >> 10) & 0x3ff) * gs;
- rgba[i][bComp] = ((p >> 20) & 0x3ff) * bs;
- rgba[i][aComp] = ((p >> 30) ) * as;
+ 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;
_mesa_problem(NULL, "bad srcType in extract float data");
break;
}
+#undef PROCESS
}
-/*
- * Unpack a row of color image data from a client buffer according to
- * the pixel unpacking parameters.
- * Return GLchan 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.
+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()
*/
-void
-_mesa_unpack_color_span_chan( struct gl_context *ctx,
- GLuint n, GLenum dstFormat, GLchan dest[],
- GLenum srcFormat, GLenum srcType,
- const GLvoid *source,
- const struct gl_pixelstore_attrib *srcPacking,
- GLbitfield transferOps )
+static void
+extract_uint_rgba(GLuint n, GLuint rgba[][4],
+ GLenum srcFormat, GLenum srcType, const GLvoid *src,
+ GLboolean swapBytes)
{
- 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 ||
- dstFormat == GL_COLOR_INDEX);
+ GLint rSrc, gSrc, bSrc, aSrc;
+ GLint stride;
+ GLint rDst, bDst, gDst, aDst;
ASSERT(srcFormat == GL_RED ||
srcFormat == GL_GREEN ||
srcFormat == GL_RGBA ||
srcFormat == GL_BGRA ||
srcFormat == GL_ABGR_EXT ||
- srcFormat == GL_COLOR_INDEX);
+ 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_BITMAP ||
- srcType == GL_UNSIGNED_BYTE ||
+ ASSERT(srcType == GL_UNSIGNED_BYTE ||
srcType == GL_BYTE ||
srcType == GL_UNSIGNED_SHORT ||
srcType == GL_SHORT ||
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_2_10_10_10_REV ||
+ srcType == GL_UNSIGNED_INT_5_9_9_9_REV ||
+ srcType == GL_UNSIGNED_INT_10F_11F_11F_REV);
- /* Try simple cases first */
- if (transferOps == 0) {
- if (srcType == CHAN_TYPE) {
- if (dstFormat == GL_RGBA) {
- if (srcFormat == GL_RGBA) {
- memcpy( dest, source, n * 4 * sizeof(GLchan) );
- return;
- }
- else if (srcFormat == GL_RGB) {
- GLuint i;
- const GLchan *src = (const GLchan *) source;
- GLchan *dst = dest;
- for (i = 0; i < n; i++) {
- dst[0] = src[0];
- dst[1] = src[1];
- dst[2] = src[2];
- dst[3] = CHAN_MAX;
- src += 3;
- dst += 4;
- }
- return;
+ 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;
}
}
- else if (dstFormat == GL_RGB) {
- if (srcFormat == GL_RGB) {
- memcpy( dest, source, n * 3 * sizeof(GLchan) );
- return;
+ 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;
}
- else if (srcFormat == GL_RGBA) {
- GLuint i;
- const GLchan *src = (const GLchan *) source;
- GLchan *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;
+ }
+ 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 if (dstFormat == srcFormat) {
- GLint comps = _mesa_components_in_format(srcFormat);
- assert(comps > 0);
- memcpy( dest, source, n * comps * sizeof(GLchan) );
- return;
+ 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;
+ }
}
- }
- /*
- * Common situation, loading 8bit RGBA/RGB source images
- * into 16/32 bit destination. (OSMesa16/32)
- */
- else if (srcType == GL_UNSIGNED_BYTE) {
- if (dstFormat == GL_RGBA) {
- if (srcFormat == GL_RGB) {
- GLuint i;
- const GLubyte *src = (const GLubyte *) source;
- GLchan *dst = dest;
- for (i = 0; i < n; i++) {
- dst[0] = UBYTE_TO_CHAN(src[0]);
- dst[1] = UBYTE_TO_CHAN(src[1]);
- dst[2] = UBYTE_TO_CHAN(src[2]);
- dst[3] = CHAN_MAX;
- src += 3;
- dst += 4;
- }
+ 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_RGBA) {
+ else if (srcFormat == GL_RGB) {
GLuint i;
const GLubyte *src = (const GLubyte *) source;
- GLchan *dst = dest;
+ GLubyte *dst = dest;
for (i = 0; i < n; i++) {
- dst[0] = UBYTE_TO_CHAN(src[0]);
- dst[1] = UBYTE_TO_CHAN(src[1]);
- dst[2] = UBYTE_TO_CHAN(src[2]);
- dst[3] = UBYTE_TO_CHAN(src[3]);
- src += 4;
+ 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) {
- GLuint i;
- const GLubyte *src = (const GLubyte *) source;
- GLchan *dst = dest;
- for (i = 0; i < n; i++) {
- dst[0] = UBYTE_TO_CHAN(src[0]);
- dst[1] = UBYTE_TO_CHAN(src[1]);
- dst[2] = UBYTE_TO_CHAN(src[2]);
- src += 3;
- dst += 3;
- }
+ memcpy( dest, source, n * 3 * sizeof(GLubyte) );
return;
}
else if (srcFormat == GL_RGBA) {
GLuint i;
const GLubyte *src = (const GLubyte *) source;
- GLchan *dst = dest;
+ GLubyte *dst = dest;
for (i = 0; i < n; i++) {
- dst[0] = UBYTE_TO_CHAN(src[0]);
- dst[1] = UBYTE_TO_CHAN(src[1]);
- dst[2] = UBYTE_TO_CHAN(src[2]);
+ 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 */
+ /* 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 dstRedIndex, dstGreenIndex, dstBlueIndex, dstAlphaIndex;
- GLint dstLuminanceIndex, dstIntensityIndex;
- GLfloat rgba[MAX_WIDTH][4];
+ 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
*/
- assert(n <= MAX_WIDTH);
if (srcFormat == GL_COLOR_INDEX) {
- GLuint indexes[MAX_WIDTH];
- extract_uint_indexes(n, indexes, srcFormat, srcType, source,
- srcPacking);
+ GLuint *indexes = malloc(n * sizeof(GLuint));
- if (dstFormat == GL_COLOR_INDEX) {
- GLuint i;
- _mesa_apply_ci_transfer_ops(ctx, transferOps, n, indexes);
- /* convert to GLchan and return */
- for (i = 0; i < n; i++) {
- dest[i] = (GLchan) (indexes[i] & 0xff);
- }
+ if (!indexes) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel unpacking");
+ free(rgba);
return;
}
- else {
- /* 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);
- }
+
+ 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 */
srcPacking->SwapBytes);
}
- /* Need to clamp if returning GLubytes or GLushorts */
-#if CHAN_TYPE != GL_FLOAT
- transferOps |= IMAGE_CLAMP_BIT;
-#endif
-
if (transferOps) {
_mesa_apply_rgba_transfer_ops(ctx, transferOps, n, rgba);
}
- /* Now determine which color channels we need to produce.
- * And determine the dest index (offset) within each color tuple.
- */
- switch (dstFormat) {
- case GL_ALPHA:
- dstAlphaIndex = 0;
- dstRedIndex = dstGreenIndex = dstBlueIndex = -1;
- dstLuminanceIndex = dstIntensityIndex = -1;
- break;
- case GL_LUMINANCE:
- dstLuminanceIndex = 0;
- dstRedIndex = dstGreenIndex = dstBlueIndex = dstAlphaIndex = -1;
- dstIntensityIndex = -1;
- break;
- case GL_LUMINANCE_ALPHA:
- dstLuminanceIndex = 0;
- dstAlphaIndex = 1;
- dstRedIndex = dstGreenIndex = dstBlueIndex = -1;
- dstIntensityIndex = -1;
- break;
- case GL_INTENSITY:
- dstIntensityIndex = 0;
- dstRedIndex = dstGreenIndex = dstBlueIndex = dstAlphaIndex = -1;
- dstLuminanceIndex = -1;
- break;
- case GL_RED:
- dstRedIndex = 0;
- dstGreenIndex = dstBlueIndex = -1;
- dstAlphaIndex = dstLuminanceIndex = dstIntensityIndex = -1;
- break;
- case GL_RG:
- dstRedIndex = 0;
- dstGreenIndex = 1;
- dstBlueIndex = -1;
- dstAlphaIndex = dstLuminanceIndex = dstIntensityIndex = -1;
- break;
- case GL_RGB:
- dstRedIndex = 0;
- dstGreenIndex = 1;
- dstBlueIndex = 2;
- dstAlphaIndex = dstLuminanceIndex = dstIntensityIndex = -1;
- break;
- case GL_RGBA:
- dstRedIndex = 0;
- dstGreenIndex = 1;
- dstBlueIndex = 2;
- dstAlphaIndex = 3;
- dstLuminanceIndex = dstIntensityIndex = -1;
- break;
- default:
- _mesa_problem(ctx, "bad dstFormat in _mesa_unpack_chan_span()");
- return;
- }
-
-
- /* Now return the GLchan data in the requested dstFormat */
+ get_component_indexes(dstFormat,
+ &rDst, &gDst, &bDst, &aDst, &lDst, &iDst);
- if (dstRedIndex >= 0) {
- GLchan *dst = dest;
+ /* Now pack results in the requested dstFormat */
+ if (rDst >= 0) {
+ GLfloat *dst = dest;
GLuint i;
for (i = 0; i < n; i++) {
- CLAMPED_FLOAT_TO_CHAN(dst[dstRedIndex], rgba[i][RCOMP]);
+ dst[rDst] = rgba[i][RCOMP];
dst += dstComponents;
}
}
- if (dstGreenIndex >= 0) {
- GLchan *dst = dest;
+ if (gDst >= 0) {
+ GLfloat *dst = dest;
GLuint i;
for (i = 0; i < n; i++) {
- CLAMPED_FLOAT_TO_CHAN(dst[dstGreenIndex], rgba[i][GCOMP]);
+ dst[gDst] = rgba[i][GCOMP];
dst += dstComponents;
}
}
- if (dstBlueIndex >= 0) {
- GLchan *dst = dest;
+ if (bDst >= 0) {
+ GLfloat *dst = dest;
GLuint i;
for (i = 0; i < n; i++) {
- CLAMPED_FLOAT_TO_CHAN(dst[dstBlueIndex], rgba[i][BCOMP]);
+ dst[bDst] = rgba[i][BCOMP];
dst += dstComponents;
}
}
- if (dstAlphaIndex >= 0) {
- GLchan *dst = dest;
+ if (aDst >= 0) {
+ GLfloat *dst = dest;
GLuint i;
for (i = 0; i < n; i++) {
- CLAMPED_FLOAT_TO_CHAN(dst[dstAlphaIndex], rgba[i][ACOMP]);
+ dst[aDst] = rgba[i][ACOMP];
dst += dstComponents;
}
}
- if (dstIntensityIndex >= 0) {
- GLchan *dst = dest;
+ if (iDst >= 0) {
+ GLfloat *dst = dest;
GLuint i;
- assert(dstIntensityIndex == 0);
+ assert(iDst == 0);
assert(dstComponents == 1);
for (i = 0; i < n; i++) {
/* Intensity comes from red channel */
- CLAMPED_FLOAT_TO_CHAN(dst[i], rgba[i][RCOMP]);
+ dst[i] = rgba[i][RCOMP];
}
}
- if (dstLuminanceIndex >= 0) {
- GLchan *dst = dest;
+ if (lDst >= 0) {
+ GLfloat *dst = dest;
GLuint i;
- assert(dstLuminanceIndex == 0);
+ assert(lDst == 0);
for (i = 0; i < n; i++) {
/* Luminance comes from red channel */
- CLAMPED_FLOAT_TO_CHAN(dst[0], rgba[i][RCOMP]);
+ dst[0] = rgba[i][RCOMP];
dst += dstComponents;
}
}
+
+ free(rgba);
}
}
/**
- * Same as _mesa_unpack_color_span_chan(), but return GLfloat data
- * instead of GLchan.
+ * 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_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 )
+_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_RED ||
dstFormat == GL_RG ||
dstFormat == GL_RGB ||
- dstFormat == GL_RGBA ||
- dstFormat == GL_COLOR_INDEX);
+ dstFormat == GL_RGBA);
ASSERT(srcFormat == GL_RED ||
srcFormat == GL_GREEN ||
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);
+ srcFormat == GL_LUMINANCE_ALPHA_INTEGER_EXT);
- ASSERT(srcType == GL_BITMAP ||
- srcType == GL_UNSIGNED_BYTE ||
+ ASSERT(srcType == GL_UNSIGNED_BYTE ||
srcType == GL_BYTE ||
srcType == GL_UNSIGNED_SHORT ||
srcType == GL_SHORT ||
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);
-
- /* general solution, no special cases, yet */
- {
- GLint dstComponents;
- GLint dstRedIndex, dstGreenIndex, dstBlueIndex, dstAlphaIndex;
- GLint dstLuminanceIndex, dstIntensityIndex;
- GLfloat rgba[MAX_WIDTH][4];
-
- dstComponents = _mesa_components_in_format( dstFormat );
- /* source & dest image formats should have been error checked by now */
- assert(dstComponents > 0);
+ 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 and convert to RGBA floats
- */
- assert(n <= MAX_WIDTH);
- if (srcFormat == GL_COLOR_INDEX) {
- GLuint indexes[MAX_WIDTH];
- extract_uint_indexes(n, indexes, srcFormat, srcType, source,
- srcPacking);
- if (dstFormat == GL_COLOR_INDEX) {
- GLuint i;
- _mesa_apply_ci_transfer_ops(ctx, transferOps, n, indexes);
- /* convert to GLchan and return */
- for (i = 0; i < n; i++) {
- dest[i] = (GLchan) (indexes[i] & 0xff);
- }
- return;
- }
- else {
- /* 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);
- }
+ /* Extract image data as uint[4] pixels */
+ extract_uint_rgba(n, rgba, srcFormat, srcType, source,
+ srcPacking->SwapBytes);
- /* Don't do RGBA scale/bias or RGBA->RGBA mapping if starting
- * with color indexes.
- */
- transferOps &= ~(IMAGE_SCALE_BIAS_BIT | IMAGE_MAP_COLOR_BIT);
- }
- else {
- /* non-color index data */
- extract_float_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 );
- if (transferOps) {
- _mesa_apply_rgba_transfer_ops(ctx, transferOps, n, rgba);
- }
+ assert(dstComponents > 0);
- /* Now determine which color channels we need to produce.
- * And determine the dest index (offset) within each color tuple.
- */
- switch (dstFormat) {
- case GL_ALPHA:
- dstAlphaIndex = 0;
- dstRedIndex = dstGreenIndex = dstBlueIndex = -1;
- dstLuminanceIndex = dstIntensityIndex = -1;
- break;
- case GL_LUMINANCE:
- dstLuminanceIndex = 0;
- dstRedIndex = dstGreenIndex = dstBlueIndex = dstAlphaIndex = -1;
- dstIntensityIndex = -1;
- break;
- case GL_LUMINANCE_ALPHA:
- dstLuminanceIndex = 0;
- dstAlphaIndex = 1;
- dstRedIndex = dstGreenIndex = dstBlueIndex = -1;
- dstIntensityIndex = -1;
- break;
- case GL_INTENSITY:
- dstIntensityIndex = 0;
- dstRedIndex = dstGreenIndex = dstBlueIndex = dstAlphaIndex = -1;
- dstLuminanceIndex = -1;
- break;
- case GL_RED:
- dstRedIndex = 0;
- dstGreenIndex = dstBlueIndex = -1;
- dstAlphaIndex = dstLuminanceIndex = dstIntensityIndex = -1;
- break;
- case GL_RG:
- dstRedIndex = 0;
- dstGreenIndex = 1;
- dstBlueIndex = -1;
- dstAlphaIndex = dstLuminanceIndex = dstIntensityIndex = -1;
- break;
- case GL_RGB:
- dstRedIndex = 0;
- dstGreenIndex = 1;
- dstBlueIndex = 2;
- dstAlphaIndex = dstLuminanceIndex = dstIntensityIndex = -1;
- break;
- case GL_RGBA:
- dstRedIndex = 0;
- dstGreenIndex = 1;
- dstBlueIndex = 2;
- dstAlphaIndex = 3;
- dstLuminanceIndex = dstIntensityIndex = -1;
- break;
- default:
- _mesa_problem(ctx, "bad dstFormat in _mesa_unpack_color_span_float()");
- return;
- }
+ get_component_indexes(dstFormat,
+ &rDst, &gDst, &bDst, &aDst, &lDst, &iDst);
- /* Now pack results in the requested dstFormat */
- if (dstRedIndex >= 0) {
- GLfloat *dst = dest;
+ /* Now pack values in the requested dest format */
+ if (rDst >= 0) {
+ GLuint *dst = dest;
GLuint i;
for (i = 0; i < n; i++) {
- dst[dstRedIndex] = rgba[i][RCOMP];
+ dst[rDst] = rgba[i][RCOMP];
dst += dstComponents;
}
}
- if (dstGreenIndex >= 0) {
- GLfloat *dst = dest;
+ if (gDst >= 0) {
+ GLuint *dst = dest;
GLuint i;
for (i = 0; i < n; i++) {
- dst[dstGreenIndex] = rgba[i][GCOMP];
+ dst[gDst] = rgba[i][GCOMP];
dst += dstComponents;
}
}
- if (dstBlueIndex >= 0) {
- GLfloat *dst = dest;
+ if (bDst >= 0) {
+ GLuint *dst = dest;
GLuint i;
for (i = 0; i < n; i++) {
- dst[dstBlueIndex] = rgba[i][BCOMP];
+ dst[bDst] = rgba[i][BCOMP];
dst += dstComponents;
}
}
- if (dstAlphaIndex >= 0) {
- GLfloat *dst = dest;
+ if (aDst >= 0) {
+ GLuint *dst = dest;
GLuint i;
for (i = 0; i < n; i++) {
- dst[dstAlphaIndex] = rgba[i][ACOMP];
+ dst[aDst] = rgba[i][ACOMP];
dst += dstComponents;
}
}
- if (dstIntensityIndex >= 0) {
- GLfloat *dst = dest;
+ if (iDst >= 0) {
+ GLuint *dst = dest;
GLuint i;
- assert(dstIntensityIndex == 0);
+ assert(iDst == 0);
assert(dstComponents == 1);
for (i = 0; i < n; i++) {
/* Intensity comes from red channel */
}
}
- if (dstLuminanceIndex >= 0) {
- GLfloat *dst = dest;
+ if (lDst >= 0) {
+ GLuint *dst = dest;
GLuint i;
- assert(dstLuminanceIndex == 0);
+ assert(lDst == 0);
for (i = 0; i < n; i++) {
/* Luminance comes from red channel */
dst[0] = rgba[i][RCOMP];
}
}
}
+
+ free(rgba);
}
+
+
/**
* Similar to _mesa_unpack_color_span_float(), but for dudv data instead of rgba,
* directly return GLbyte data, no transfer ops apply.
GLbitfield transferOps )
{
ASSERT(dstFormat == GL_DUDV_ATI);
- ASSERT(srcFormat == GL_DUDV_ATI);
+ ASSERT(srcFormat == GL_DUDV_ATI ||
+ srcFormat == GL_DU8DV8_ATI);
ASSERT(srcType == GL_UNSIGNED_BYTE ||
srcType == GL_BYTE ||
/* general solution */
{
GLint dstComponents;
- GLfloat rgba[MAX_WIDTH][4];
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 */
/*
* Extract image data and convert to RGBA floats
*/
- assert(n <= MAX_WIDTH);
extract_float_rgba(n, rgba, srcFormat, srcType, source,
srcPacking->SwapBytes);
dst[1] = FLOAT_TO_BYTE(rgba[i][GCOMP]);
dst += dstComponents;
}
+
+ free(rgba);
}
}
* transferOps - the pixel transfer operations to apply
*/
void
-_mesa_unpack_index_span( const struct gl_context *ctx, GLuint n,
+_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,
/*
* general solution
*/
- GLuint indexes[MAX_WIDTH];
- assert(n <= MAX_WIDTH);
+ 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);
default:
_mesa_problem(ctx, "bad dstType in _mesa_unpack_index_span");
}
+
+ free(indexes);
}
}
void
-_mesa_pack_index_span( const struct gl_context *ctx, GLuint n,
+_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[MAX_WIDTH];
+ GLuint *indexes = malloc(n * sizeof(GLuint));
- ASSERT(n <= MAX_WIDTH);
+ if (!indexes) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel packing");
+ return;
+ }
transferOps &= (IMAGE_MAP_COLOR_BIT | IMAGE_SHIFT_OFFSET_BIT);
default:
_mesa_problem(ctx, "bad type in _mesa_pack_index_span");
}
+
+ free(indexes);
}
* transferOps - apply offset/bias/lookup ops?
*/
void
-_mesa_unpack_stencil_span( const struct gl_context *ctx, GLuint n,
+_mesa_unpack_stencil_span( struct gl_context *ctx, GLuint n,
GLenum dstType, GLvoid *dest,
GLenum srcType, const GLvoid *source,
const struct gl_pixelstore_attrib *srcPacking,
srcType == GL_INT ||
srcType == GL_UNSIGNED_INT_24_8_EXT ||
srcType == GL_HALF_FLOAT_ARB ||
- srcType == GL_FLOAT);
+ srcType == GL_FLOAT ||
+ srcType == GL_FLOAT_32_UNSIGNED_INT_24_8_REV);
ASSERT(dstType == GL_UNSIGNED_BYTE ||
dstType == GL_UNSIGNED_SHORT ||
- dstType == GL_UNSIGNED_INT);
+ dstType == GL_UNSIGNED_INT ||
+ dstType == GL_FLOAT_32_UNSIGNED_INT_24_8_REV);
/* only shift and offset apply to stencil */
transferOps &= IMAGE_SHIFT_OFFSET_BIT;
/*
* general solution
*/
- GLuint indexes[MAX_WIDTH];
- assert(n <= MAX_WIDTH);
+ GLuint *indexes = malloc(n * sizeof(GLuint));
+
+ if (!indexes) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "stencil unpacking");
+ return;
+ }
extract_uint_indexes(n, indexes, GL_STENCIL_INDEX, srcType, source,
srcPacking);
case GL_UNSIGNED_INT:
memcpy(dest, indexes, n * sizeof(GLuint));
break;
+ case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
+ {
+ GLuint *dst = (GLuint *) dest;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ dst[i*2+1] = indexes[i] & 0xff; /* lower 8 bits */
+ }
+ }
+ break;
default:
_mesa_problem(ctx, "bad dstType in _mesa_unpack_stencil_span");
}
+
+ free(indexes);
}
}
void
-_mesa_pack_stencil_span( const struct gl_context *ctx, GLuint n,
- GLenum dstType, GLvoid *dest, const GLstencil *source,
+_mesa_pack_stencil_span( struct gl_context *ctx, GLuint n,
+ GLenum dstType, GLvoid *dest, const GLubyte *source,
const struct gl_pixelstore_attrib *dstPacking )
{
- GLstencil stencil[MAX_WIDTH];
+ GLubyte *stencil = malloc(n * sizeof(GLubyte));
- ASSERT(n <= MAX_WIDTH);
+ if (!stencil) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "stencil packing");
+ return;
+ }
if (ctx->Pixel.IndexShift || ctx->Pixel.IndexOffset ||
ctx->Pixel.MapStencilFlag) {
/* make a copy of input */
- memcpy(stencil, source, n * sizeof(GLstencil));
+ memcpy(stencil, source, n * sizeof(GLubyte));
_mesa_apply_stencil_transfer_ops(ctx, n, stencil);
source = stencil;
}
switch (dstType) {
case GL_UNSIGNED_BYTE:
- if (sizeof(GLstencil) == 1) {
- memcpy( dest, source, n );
- }
- else {
- GLubyte *dst = (GLubyte *) dest;
- GLuint i;
- for (i=0;i<n;i++) {
- dst[i] = (GLubyte) source[i];
- }
- }
+ memcpy(dest, source, n);
break;
case GL_BYTE:
{
default:
_mesa_problem(ctx, "bad type in _mesa_pack_index_span");
}
+
+ free(stencil);
}
#define DEPTH_VALUES(GLTYPE, GLTYPE2FLOAT) \
* (ignored for GLfloat).
*/
void
-_mesa_unpack_depth_span( const struct gl_context *ctx, GLuint n,
+_mesa_unpack_depth_span( struct gl_context *ctx, GLuint n,
GLenum dstType, GLvoid *dest, GLuint depthMax,
GLenum srcType, const GLvoid *source,
const struct gl_pixelstore_attrib *srcPacking )
{
- GLfloat depthTemp[MAX_WIDTH], *depthValues;
+ GLfloat *depthTemp = NULL, *depthValues;
GLboolean needClamp = GL_FALSE;
/* Look for special cases first.
depthValues = (GLfloat *) dest;
}
else {
+ depthTemp = malloc(n * sizeof(GLfloat));
+ if (!depthTemp) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel unpacking");
+ return;
+ }
+
depthValues = depthTemp;
}
*/
switch (srcType) {
case GL_BYTE:
- DEPTH_VALUES(GLbyte, BYTE_TO_FLOAT);
+ DEPTH_VALUES(GLbyte, BYTE_TO_FLOATZ);
needClamp = GL_TRUE;
break;
case GL_UNSIGNED_BYTE:
DEPTH_VALUES(GLubyte, UBYTE_TO_FLOAT);
break;
case GL_SHORT:
- DEPTH_VALUES(GLshort, SHORT_TO_FLOAT);
+ DEPTH_VALUES(GLshort, SHORT_TO_FLOATZ);
needClamp = GL_TRUE;
break;
case GL_UNSIGNED_SHORT:
}
zValues[i] = value & 0xffffff00;
}
+ free(depthTemp);
return;
}
else {
}
}
break;
+ case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
+ {
+ GLuint i;
+ const GLfloat *src = (const GLfloat *)source;
+ for (i = 0; i < n; i++) {
+ GLfloat value = src[i * 2];
+ if (srcPacking->SwapBytes) {
+ SWAP4BYTE(value);
+ }
+ depthValues[i] = value;
+ }
+ needClamp = GL_TRUE;
+ }
+ break;
case GL_FLOAT:
DEPTH_VALUES(GLfloat, 1*);
needClamp = GL_TRUE;
break;
default:
_mesa_problem(NULL, "bad type in _mesa_unpack_depth_span()");
+ free(depthTemp);
return;
}
else {
/* need to use double precision to prevent overflow problems */
for (i = 0; i < n; i++) {
- GLdouble z = depthValues[i] * (GLfloat) depthMax;
+ GLdouble z = depthValues[i] * (GLdouble) depthMax;
if (z >= (GLdouble) 0xffffffff)
zValues[i] = 0xffffffff;
else
zValues[i] = (GLushort) (depthValues[i] * (GLfloat) depthMax);
}
}
+ else if (dstType == GL_FLOAT) {
+ /* Nothing to do. depthValues is pointing to dest. */
+ }
+ else if (dstType == GL_FLOAT_32_UNSIGNED_INT_24_8_REV) {
+ GLfloat *zValues = (GLfloat*) dest;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ zValues[i*2] = depthValues[i];
+ }
+ }
else {
- ASSERT(dstType == GL_FLOAT);
- /*ASSERT(depthMax == 1.0F);*/
+ ASSERT(0);
}
+
+ free(depthTemp);
}
* Pack an array of depth values. The values are floats in [0,1].
*/
void
-_mesa_pack_depth_span( const struct gl_context *ctx, GLuint n, GLvoid *dest,
+_mesa_pack_depth_span( struct gl_context *ctx, GLuint n, GLvoid *dest,
GLenum dstType, const GLfloat *depthSpan,
const struct gl_pixelstore_attrib *dstPacking )
{
- GLfloat depthCopy[MAX_WIDTH];
-
- ASSERT(n <= MAX_WIDTH);
+ GLfloat *depthCopy = malloc(n * sizeof(GLfloat));
+ if (!depthCopy) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel packing");
+ return;
+ }
if (ctx->Pixel.DepthScale != 1.0 || ctx->Pixel.DepthBias != 0.0) {
memcpy(depthCopy, depthSpan, n * sizeof(GLfloat));
default:
_mesa_problem(ctx, "bad type in _mesa_pack_depth_span");
}
+
+ free(depthCopy);
}
/**
- * Pack depth and stencil values as GL_DEPTH_STENCIL/GL_UNSIGNED_INT_24_8.
+ * Pack depth and stencil values as GL_DEPTH_STENCIL (GL_UNSIGNED_INT_24_8 etc)
*/
void
-_mesa_pack_depth_stencil_span(const struct gl_context *ctx, GLuint n, GLuint *dest,
+_mesa_pack_depth_stencil_span(struct gl_context *ctx,GLuint n,
+ GLenum dstType, GLuint *dest,
const GLfloat *depthVals,
- const GLstencil *stencilVals,
+ const GLubyte *stencilVals,
const struct gl_pixelstore_attrib *dstPacking)
{
- GLfloat depthCopy[MAX_WIDTH];
- GLstencil stencilCopy[MAX_WIDTH];
+ GLfloat *depthCopy = malloc(n * sizeof(GLfloat));
+ GLubyte *stencilCopy = malloc(n * sizeof(GLubyte));
GLuint i;
- ASSERT(n <= MAX_WIDTH);
+ if (!depthCopy || !stencilCopy) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "pixel packing");
+ free(depthCopy);
+ free(stencilCopy);
+ return;
+ }
if (ctx->Pixel.DepthScale != 1.0 || ctx->Pixel.DepthBias != 0.0) {
memcpy(depthCopy, depthVals, n * sizeof(GLfloat));
if (ctx->Pixel.IndexShift ||
ctx->Pixel.IndexOffset ||
ctx->Pixel.MapStencilFlag) {
- memcpy(stencilCopy, stencilVals, n * sizeof(GLstencil));
+ memcpy(stencilCopy, stencilVals, n * sizeof(GLubyte));
_mesa_apply_stencil_transfer_ops(ctx, n, stencilCopy);
stencilVals = stencilCopy;
}
- for (i = 0; i < n; i++) {
- GLuint z = (GLuint) (depthVals[i] * 0xffffff);
- dest[i] = (z << 8) | (stencilVals[i] & 0xff);
+ switch (dstType) {
+ case GL_UNSIGNED_INT_24_8:
+ for (i = 0; i < n; i++) {
+ GLuint z = (GLuint) (depthVals[i] * 0xffffff);
+ dest[i] = (z << 8) | (stencilVals[i] & 0xff);
+ }
+ break;
+ case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
+ for (i = 0; i < n; i++) {
+ ((GLfloat*)dest)[i*2] = depthVals[i];
+ dest[i*2+1] = stencilVals[i] & 0xff;
+ }
+ break;
}
if (dstPacking->SwapBytes) {
_mesa_swap4(dest, n);
}
+
+ free(depthCopy);
+ free(stencilCopy);
}
{
GLubyte *destBuffer
- = (GLubyte *) malloc(bytesPerRow * height * depth);
+ = malloc(bytesPerRow * height * depth);
GLubyte *dst;
GLint img, row;
if (!destBuffer)
}
}
+
+
+/**
+ * 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)
+{
+ GLuint i;
+
+ 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 */
+ case GL_LUMINANCE:
+ for (i = 0; i < n; i++) {
+ rgba[i][GCOMP] = 0.0F;
+ rgba[i][BCOMP] = 0.0F;
+ rgba[i][ACOMP] = 1.0F;
+ }
+ break;
+ case GL_LUMINANCE_ALPHA:
+ for (i = 0; i < n; i++) {
+ rgba[i][GCOMP] = 0.0F;
+ rgba[i][BCOMP] = 0.0F;
+ }
+ break;
+ default:
+ /* no-op */
+ ;
+ }
+}
+
+
+/**
+ * As above, but GLuint components.
+ */
+void
+_mesa_rebase_rgba_uint(GLuint n, GLuint rgba[][4], GLenum baseFormat)
+{
+ GLuint i;
+
+ 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;
+ default:
+ /* no-op */
+ ;
+ }
+}
+
+
projects / mesa.git / blobdiff