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authorBrian Paul <brian.paul@tungstengraphics.com>2008-06-23 17:13:14 -0600
committerBrian Paul <brian.paul@tungstengraphics.com>2008-06-23 17:13:14 -0600
commit89e9d6b6db933c870443714c3d7c9539d117cddf (patch)
tree65593827b5ddc76cab81e5dca227819928eff6e4 /src/gallium/auxiliary/translate
parentdc73d15a9a1cc830781f8f3ef81507bfff79b7f9 (diff)
gallium: added support for fixed-point formats, drawing
Diffstat (limited to 'src/gallium/auxiliary/translate')
-rw-r--r--src/gallium/auxiliary/translate/translate_generic.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/translate/translate_generic.c b/src/gallium/auxiliary/translate/translate_generic.c
index 3fec89b36e..17e37d1745 100644
--- a/src/gallium/auxiliary/translate/translate_generic.c
+++ b/src/gallium/auxiliary/translate/translate_generic.c
@@ -121,6 +121,8 @@ emit_##NAME(const float *attrib, void *ptr) \
#define FROM_16_SNORM(i) ((float) ((short *) ptr)[i] / 32767.0f)
#define FROM_32_SNORM(i) ((float) ((int *) ptr)[i] / 2147483647.0f)
+#define FROM_32_FIXED(i) (((int *) ptr)[i] / 65536.0)
+
#define TO_64_FLOAT(x) ((double) x)
#define TO_32_FLOAT(x) (x)
@@ -140,6 +142,8 @@ emit_##NAME(const float *attrib, void *ptr) \
#define TO_16_SNORM(x) ((short) (x * 32767.0f))
#define TO_32_SNORM(x) ((int) (x * 2147483647.0f))
+#define TO_32_FIXED(x) ((int) (x * 65536.0f))
+
ATTRIB( R64G64B64A64_FLOAT, 4, double, FROM_64_FLOAT, TO_64_FLOAT )
@@ -215,6 +219,11 @@ ATTRIB( R8_SNORM, 1, char, FROM_8_SNORM, TO_8_SNORM )
ATTRIB( A8R8G8B8_UNORM, 4, ubyte, FROM_8_UNORM, TO_8_UNORM )
//ATTRIB( R8G8B8A8_UNORM, 4, ubyte, FROM_8_UNORM, TO_8_UNORM )
+ATTRIB( R32G32B32A32_FIXED, 4, int, FROM_32_FIXED, TO_32_FIXED )
+ATTRIB( R32G32B32_FIXED, 3, int, FROM_32_FIXED, TO_32_FIXED )
+ATTRIB( R32G32_FIXED, 2, int, FROM_32_FIXED, TO_32_FIXED )
+ATTRIB( R32_FIXED, 1, int, FROM_32_FIXED, TO_32_FIXED )
+
static void
@@ -386,6 +395,15 @@ static fetch_func get_fetch_func( enum pipe_format format )
case PIPE_FORMAT_B8G8R8A8_UNORM:
return &fetch_B8G8R8A8_UNORM;
+ case PIPE_FORMAT_R32_FIXED:
+ return &fetch_R32_FIXED;
+ case PIPE_FORMAT_R32G32_FIXED:
+ return &fetch_R32G32_FIXED;
+ case PIPE_FORMAT_R32G32B32_FIXED:
+ return &fetch_R32G32B32_FIXED;
+ case PIPE_FORMAT_R32G32B32A32_FIXED:
+ return &fetch_R32G32B32A32_FIXED;
+
default:
assert(0);
return &fetch_NULL;