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authorBrian Paul <[email protected]>2011-09-14 08:15:14 -0600
committerBrian Paul <[email protected]>2011-09-14 08:15:59 -0600
commitec22b75be1c57f991f48bf6cc1d4b910911e8bf2 (patch)
tree452e1c4c36630428075b61c2910a52a9903b98f9 /src/gallium/drivers/softpipe/sp_context.h
parent4fc50d457065b974a7cfc3e63ab2a6da77490559 (diff)
softpipe: implement blend color clamping
Per the GL spec, clamp incoming colors prior to blending depending on whether the destination buffer stores normalized (non-float) values. Note that the constant blend color needs to be clamped too (we always get the unclamped color from Mesa). Fixes https://bugs.freedesktop.org/show_bug.cgi?id=40412
Diffstat (limited to 'src/gallium/drivers/softpipe/sp_context.h')
-rw-r--r--src/gallium/drivers/softpipe/sp_context.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/gallium/drivers/softpipe/sp_context.h b/src/gallium/drivers/softpipe/sp_context.h
index 410b0a65792..d51ce9fe333 100644
--- a/src/gallium/drivers/softpipe/sp_context.h
+++ b/src/gallium/drivers/softpipe/sp_context.h
@@ -75,6 +75,7 @@ struct softpipe_context {
/** Other rendering state */
struct pipe_blend_color blend_color;
+ struct pipe_blend_color blend_color_clamped;
struct pipe_stencil_ref stencil_ref;
struct pipe_clip_state clip;
struct pipe_resource *constants[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];