gallium: remove PIPE_CAP_S3TC, and add PIPE_CAP_DUAL_SOURCE_BLEND

there's no point in keeping deprecated PIPE_CAPS around since there's no
stable interface (yet).
Reuse the enum for PIPE_CAP_DUAL_SOURCE_BLEND. Drivers advertizing this
will accept the pipe blendfactors with SRC1 in them and be able to do dual
source blending (src color from pixel shader output 0, and blendfactor with
SRC1 will come from output 1, only one render target may be bound when using
any of these blend factors).

diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h
index 185ab6a711630132f0b49797bd8ff085fd2ff712..41a4f209019241a9b26dd2457edf185ead90d9a1 100644 (file)
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -377,7 +377,7 @@ enum pipe_transfer_usage {
 #define PIPE_CAP_NPOT_TEXTURES           2
 #define PIPE_CAP_TWO_SIDED_STENCIL       3
 #define PIPE_CAP_GLSL                    4  /* XXX need something better */
-#define PIPE_CAP_S3TC                    5  /* XXX: deprecated; cap determined via supported sampler formats */
+#define PIPE_CAP_DUAL_SOURCE_BLEND       5  
 #define PIPE_CAP_ANISOTROPIC_FILTER      6
 #define PIPE_CAP_POINT_SPRITE            7
 #define PIPE_CAP_MAX_RENDER_TARGETS      8