From 862724d3c2761fe148d985e9205ebb1cc36f3011 Mon Sep 17 00:00:00 2001 From: Keith Whitwell Date: Wed, 2 Sep 2009 17:58:52 +0100 Subject: util: add version of u_blit_pixels which takes a writemask Values outside the writemask are set in the destination to {0,0,0,1} --- src/gallium/auxiliary/util/u_simple_shaders.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) (limited to 'src/gallium/auxiliary/util/u_simple_shaders.c') diff --git a/src/gallium/auxiliary/util/u_simple_shaders.c b/src/gallium/auxiliary/util/u_simple_shaders.c index eb311d29f9..1b8da9b685 100644 --- a/src/gallium/auxiliary/util/u_simple_shaders.c +++ b/src/gallium/auxiliary/util/u_simple_shaders.c @@ -88,11 +88,14 @@ util_make_vertex_passthrough_shader(struct pipe_context *pipe, /** * Make simple fragment texture shader: - * TEX OUT[0], IN[0], SAMP[0], 2D; + * IMM {0,0,0,1} // (if writemask != 0xf) + * MOV OUT[0], IMM[0] // (if writemask != 0xf) + * TEX OUT[0].writemask, IN[0], SAMP[0], 2D; * END; */ void * -util_make_fragment_tex_shader(struct pipe_context *pipe) +util_make_fragment_tex_shader_writemask(struct pipe_context *pipe, + unsigned writemask ) { struct ureg_program *ureg; struct ureg_src sampler; @@ -119,6 +122,13 @@ util_make_fragment_tex_shader(struct pipe_context *pipe) return ureg_create_shader_and_destroy( ureg, pipe ); } +void * +util_make_fragment_tex_shader(struct pipe_context *pipe ) +{ + return util_make_fragment_tex_shader_writemask( pipe, + TGSI_WRITEMASK_XYZW ); +} + -- cgit v1.2.3