Mesa (gallium-0.2): cell: fix/add some fallback blend cases
Brian Paul
brianp at kemper.freedesktop.org
Wed Oct 15 17:00:03 UTC 2008
Module: Mesa
Branch: gallium-0.2
Commit: 4e506f422a13b20fcc95edb6c7048a9de6e32efa
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=4e506f422a13b20fcc95edb6c7048a9de6e32efa
Author: Brian Paul <brian.paul at tungstengraphics.com>
Date: Wed Oct 15 10:53:48 2008 -0600
cell: fix/add some fallback blend cases
---
src/gallium/drivers/cell/spu/spu_per_fragment_op.c | 49 ++++++++++++++++++-
1 files changed, 46 insertions(+), 3 deletions(-)
diff --git a/src/gallium/drivers/cell/spu/spu_per_fragment_op.c b/src/gallium/drivers/cell/spu/spu_per_fragment_op.c
index d252fa6..9404704 100644
--- a/src/gallium/drivers/cell/spu/spu_per_fragment_op.c
+++ b/src/gallium/drivers/cell/spu/spu_per_fragment_op.c
@@ -40,6 +40,24 @@
#define LINEAR_QUAD_LAYOUT 1
+static INLINE vector float
+spu_min(vector float a, vector float b)
+{
+ vector unsigned int m;
+ m = spu_cmpgt(a, b); /* m = a > b ? ~0 : 0 */
+ return spu_sel(a, b, m);
+}
+
+
+static INLINE vector float
+spu_max(vector float a, vector float b)
+{
+ vector unsigned int m;
+ m = spu_cmpgt(a, b); /* m = a > b ? ~0 : 0 */
+ return spu_sel(b, a, m);
+}
+
+
/**
* Called by rasterizer for each quad after the shader has run. Do
* all the per-fragment operations including alpha test, z test,
@@ -293,9 +311,9 @@ spu_fallback_fragment_ops(uint x, uint y,
*/
switch (spu.blend.rgb_dst_factor) {
case PIPE_BLENDFACTOR_ONE:
- term2r = fragR;
- term2g = fragG;
- term2b = fragB;
+ term2r = fbRGBA[0];
+ term2g = fbRGBA[1];
+ term2b = fbRGBA[2];
break;
case PIPE_BLENDFACTOR_ZERO:
term2r =
@@ -361,8 +379,24 @@ spu_fallback_fragment_ops(uint x, uint y,
fragG = spu_sub(term1g, term2g);
fragB = spu_sub(term1b, term2b);
break;
+ case PIPE_BLEND_REVERSE_SUBTRACT:
+ fragR = spu_sub(term2r, term1r);
+ fragG = spu_sub(term2g, term1g);
+ fragB = spu_sub(term2b, term1b);
+ break;
+ case PIPE_BLEND_MIN:
+ fragR = spu_min(term1r, term2r);
+ fragG = spu_min(term1g, term2g);
+ fragB = spu_min(term1b, term2b);
+ break;
+ case PIPE_BLEND_MAX:
+ fragR = spu_max(term1r, term2r);
+ fragG = spu_max(term1g, term2g);
+ fragB = spu_max(term1b, term2b);
+ break;
/* XXX more cases */
default:
+ printf("unsup 0x%x\n", spu.blend.rgb_func);
ASSERT(0);
}
@@ -376,6 +410,15 @@ spu_fallback_fragment_ops(uint x, uint y,
case PIPE_BLEND_SUBTRACT:
fragA = spu_sub(term1a, term2a);
break;
+ case PIPE_BLEND_REVERSE_SUBTRACT:
+ fragA = spu_sub(term2a, term1a);
+ break;
+ case PIPE_BLEND_MIN:
+ fragA = spu_min(term1a, term2a);
+ break;
+ case PIPE_BLEND_MAX:
+ fragA = spu_max(term1a, term2a);
+ break;
/* XXX more cases */
default:
ASSERT(0);
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