diff options
Diffstat (limited to 'src/gallium/auxiliary/util/u_simple_shaders.c')
| -rw-r--r-- | src/gallium/auxiliary/util/u_simple_shaders.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/src/gallium/auxiliary/util/u_simple_shaders.c b/src/gallium/auxiliary/util/u_simple_shaders.c index 8172ead020..b751e29ab6 100644 --- a/src/gallium/auxiliary/util/u_simple_shaders.c +++ b/src/gallium/auxiliary/util/u_simple_shaders.c @@ -44,13 +44,15 @@ /** * Make simple vertex pass-through shader. + * \param num_attribs number of attributes to pass through + * \param semantic_names array of semantic names for each attribute + * \param semantic_indexes array of semantic indexes for each attribute */ void * util_make_vertex_passthrough_shader(struct pipe_context *pipe, uint num_attribs, const uint *semantic_names, const uint *semantic_indexes) - { struct ureg_program *ureg; uint i; @@ -78,8 +80,6 @@ util_make_vertex_passthrough_shader(struct pipe_context *pipe, } - - /** * Make simple fragment texture shader: * IMM {0,0,0,1} // (if writemask != 0xf) @@ -125,6 +125,12 @@ util_make_fragment_tex_shader_writemask(struct pipe_context *pipe, return ureg_create_shader_and_destroy( ureg, pipe ); } + +/** + * Make a simple fragment shader that sets the output color to a color + * taken from a texture. + * \param tex_target one of PIPE_TEXTURE_x + */ void * util_make_fragment_tex_shader(struct pipe_context *pipe, unsigned tex_target ) { @@ -133,6 +139,7 @@ util_make_fragment_tex_shader(struct pipe_context *pipe, unsigned tex_target ) TGSI_WRITEMASK_XYZW ); } + /** * Make a simple fragment texture shader which reads an X component from * a texture and writes it as depth. @@ -177,6 +184,7 @@ util_make_fragment_tex_shader_writedepth(struct pipe_context *pipe, return ureg_create_shader_and_destroy( ureg, pipe ); } + /** * Make simple fragment color pass-through shader. */ @@ -186,15 +194,19 @@ util_make_fragment_passthrough_shader(struct pipe_context *pipe) return util_make_fragment_clonecolor_shader(pipe, 1); } + +/** + * Make a fragment shader that copies the input color to N output colors. + */ void * util_make_fragment_clonecolor_shader(struct pipe_context *pipe, int num_cbufs) { struct ureg_program *ureg; struct ureg_src src; - struct ureg_dst dst[8]; + struct ureg_dst dst[PIPE_MAX_COLOR_BUFS]; int i; - assert(num_cbufs <= 8); + assert(num_cbufs <= PIPE_MAX_COLOR_BUFS); ureg = ureg_create( TGSI_PROCESSOR_FRAGMENT ); if (ureg == NULL) |