summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorMarek Olšák <[email protected]>2011-04-26 02:29:00 +0200
committerMarek Olšák <[email protected]>2011-04-29 11:31:55 +0200
commit349184be36e59f49309b8c1f371d99efceaf6d5f (patch)
tree1eb8b323eb719ea27210f038b7689f384f5d33fe
parent1da44f5923c5715d78a48dc300bbc6cbd3f3ea99 (diff)
util: implement R9G9B9E5 pack and unpack functions
softpipe and llvmpipe support done (sampler only). Reviewed-by: Brian Paul <[email protected]>
-rw-r--r--src/gallium/auxiliary/util/u_format_other.c87
1 files changed, 82 insertions, 5 deletions
diff --git a/src/gallium/auxiliary/util/u_format_other.c b/src/gallium/auxiliary/util/u_format_other.c
index fa42ec37138..a44cc01673b 100644
--- a/src/gallium/auxiliary/util/u_format_other.c
+++ b/src/gallium/auxiliary/util/u_format_other.c
@@ -28,6 +28,7 @@
#include "u_math.h"
#include "u_format_other.h"
+#include "../../../mesa/main/rgb9e5.h"
void
@@ -35,7 +36,23 @@ util_format_r9g9b9e5_float_unpack_rgba_float(float *dst_row, unsigned dst_stride
const uint8_t *src_row, unsigned src_stride,
unsigned width, unsigned height)
{
-
+ unsigned x, y;
+ for(y = 0; y < height; y += 1) {
+ float *dst = dst_row;
+ const uint8_t *src = src_row;
+ for(x = 0; x < width; x += 1) {
+ uint32_t value = *(const uint32_t *)src;
+#ifdef PIPE_ARCH_BIG_ENDIAN
+ value = util_bswap32(value);
+#endif
+ rgb9e5_to_float3(value, dst);
+ dst[3] = 1; /* a */
+ src += 4;
+ dst += 4;
+ }
+ src_row += src_stride;
+ dst_row += dst_stride/sizeof(*dst_row);
+ }
}
void
@@ -43,14 +60,34 @@ util_format_r9g9b9e5_float_pack_rgba_float(uint8_t *dst_row, unsigned dst_stride
const float *src_row, unsigned src_stride,
unsigned width, unsigned height)
{
-
+ unsigned x, y;
+ for(y = 0; y < height; y += 1) {
+ const float *src = src_row;
+ uint8_t *dst = dst_row;
+ for(x = 0; x < width; x += 1) {
+ uint32_t value = float3_to_rgb9e5(src);
+#ifdef PIPE_ARCH_BIG_ENDIAN
+ value = util_bswap32(value);
+#endif
+ *(uint32_t *)dst = value;
+ src += 4;
+ dst += 4;
+ }
+ dst_row += dst_stride;
+ src_row += src_stride/sizeof(*src_row);
+ }
}
void
util_format_r9g9b9e5_float_fetch_rgba_float(float *dst, const uint8_t *src,
unsigned i, unsigned j)
{
-
+ uint32_t value = *(const uint32_t *)src;
+#ifdef PIPE_ARCH_BIG_ENDIAN
+ value = util_bswap32(value);
+#endif
+ rgb9e5_to_float3(value, dst);
+ dst[3] = 1; /* a */
}
@@ -59,7 +96,27 @@ util_format_r9g9b9e5_float_unpack_rgba_8unorm(uint8_t *dst_row, unsigned dst_str
const uint8_t *src_row, unsigned src_stride,
unsigned width, unsigned height)
{
-
+ unsigned x, y;
+ float p[3];
+ for(y = 0; y < height; y += 1) {
+ uint8_t *dst = dst_row;
+ const uint8_t *src = src_row;
+ for(x = 0; x < width; x += 1) {
+ uint32_t value = *(const uint32_t *)src;
+#ifdef PIPE_ARCH_BIG_ENDIAN
+ value = util_bswap32(value);
+#endif
+ rgb9e5_to_float3(value, p);
+ dst[0] = float_to_ubyte(p[0]); /* r */
+ dst[1] = float_to_ubyte(p[1]); /* g */
+ dst[2] = float_to_ubyte(p[2]); /* b */
+ dst[3] = 255; /* a */
+ src += 4;
+ dst += 4;
+ }
+ src_row += src_stride;
+ dst_row += dst_stride/sizeof(*dst_row);
+ }
}
@@ -68,7 +125,27 @@ util_format_r9g9b9e5_float_pack_rgba_8unorm(uint8_t *dst_row, unsigned dst_strid
const uint8_t *src_row, unsigned src_stride,
unsigned width, unsigned height)
{
-
+ unsigned x, y;
+ float p[3];
+ for(y = 0; y < height; y += 1) {
+ const uint8_t *src = src_row;
+ uint8_t *dst = dst_row;
+ for(x = 0; x < width; x += 1) {
+ uint32_t value;
+ p[0] = ubyte_to_float(src[0]);
+ p[1] = ubyte_to_float(src[1]);
+ p[2] = ubyte_to_float(src[2]);
+ value = float3_to_rgb9e5(p);
+#ifdef PIPE_ARCH_BIG_ENDIAN
+ value = util_bswap32(value);
+#endif
+ *(uint32_t *)dst = value;
+ src += 4;
+ dst += 4;
+ }
+ dst_row += dst_stride;
+ src_row += src_stride/sizeof(*src_row);
+ }
}