diff options
author | José Fonseca <jfonseca@vmware.com> | 2010-01-08 15:42:57 +0000 |
---|---|---|
committer | José Fonseca <jfonseca@vmware.com> | 2010-01-08 15:42:57 +0000 |
commit | 080c40ab32b2abd6d8381b4a0cc143d36a1652b2 (patch) | |
tree | e173767ebc5a82d81b9fc086449d915e29348976 /src/gallium/auxiliary/util/u_simple_shaders.c | |
parent | 9cdf6f025b2ed55cfb13dd09f870f01d0c7947d3 (diff) | |
parent | a1de400e8de06a80ab140bb0fa950e990607572d (diff) |
Merge remote branch 'origin/master' into lp-binning
Conflicts:
src/gallium/auxiliary/util/u_surface.c
src/gallium/drivers/llvmpipe/Makefile
src/gallium/drivers/llvmpipe/SConscript
src/gallium/drivers/llvmpipe/lp_bld_arit.c
src/gallium/drivers/llvmpipe/lp_bld_flow.c
src/gallium/drivers/llvmpipe/lp_bld_interp.c
src/gallium/drivers/llvmpipe/lp_clear.c
src/gallium/drivers/llvmpipe/lp_context.c
src/gallium/drivers/llvmpipe/lp_context.h
src/gallium/drivers/llvmpipe/lp_draw_arrays.c
src/gallium/drivers/llvmpipe/lp_jit.c
src/gallium/drivers/llvmpipe/lp_jit.h
src/gallium/drivers/llvmpipe/lp_prim_vbuf.c
src/gallium/drivers/llvmpipe/lp_setup.c
src/gallium/drivers/llvmpipe/lp_setup_point.c
src/gallium/drivers/llvmpipe/lp_state.h
src/gallium/drivers/llvmpipe/lp_state_blend.c
src/gallium/drivers/llvmpipe/lp_state_derived.c
src/gallium/drivers/llvmpipe/lp_state_fs.c
src/gallium/drivers/llvmpipe/lp_state_sampler.c
src/gallium/drivers/llvmpipe/lp_state_surface.c
src/gallium/drivers/llvmpipe/lp_tex_cache.c
src/gallium/drivers/llvmpipe/lp_tex_cache.h
src/gallium/drivers/llvmpipe/lp_tex_sample.h
src/gallium/drivers/llvmpipe/lp_tile_cache.c
Diffstat (limited to 'src/gallium/auxiliary/util/u_simple_shaders.c')
-rw-r--r-- | src/gallium/auxiliary/util/u_simple_shaders.c | 88 |
1 files changed, 78 insertions, 10 deletions
diff --git a/src/gallium/auxiliary/util/u_simple_shaders.c b/src/gallium/auxiliary/util/u_simple_shaders.c index 1c8b157d91..b751e29ab6 100644 --- a/src/gallium/auxiliary/util/u_simple_shaders.c +++ b/src/gallium/auxiliary/util/u_simple_shaders.c @@ -2,6 +2,7 @@ * * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. * All Rights Reserved. + * Copyright 2009 Marek Olšák <maraeo@gmail.com> * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the @@ -30,6 +31,7 @@ * Simple vertex/fragment shader generators. * * @author Brian Paul + Marek Olšák */ @@ -42,13 +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; @@ -76,8 +80,6 @@ util_make_vertex_passthrough_shader(struct pipe_context *pipe, } - - /** * Make simple fragment texture shader: * IMM {0,0,0,1} // (if writemask != 0xf) @@ -87,6 +89,7 @@ util_make_vertex_passthrough_shader(struct pipe_context *pipe, */ void * util_make_fragment_tex_shader_writemask(struct pipe_context *pipe, + unsigned tex_target, unsigned writemask ) { struct ureg_program *ureg; @@ -116,20 +119,71 @@ util_make_fragment_tex_shader_writemask(struct pipe_context *pipe, ureg_TEX( ureg, ureg_writemask(out, writemask), - TGSI_TEXTURE_2D, tex, sampler ); + tex_target, tex, sampler ); ureg_END( ureg ); 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 ) +util_make_fragment_tex_shader(struct pipe_context *pipe, unsigned tex_target ) { return util_make_fragment_tex_shader_writemask( pipe, + tex_target, TGSI_WRITEMASK_XYZW ); } +/** + * Make a simple fragment texture shader which reads an X component from + * a texture and writes it as depth. + */ +void * +util_make_fragment_tex_shader_writedepth(struct pipe_context *pipe, + unsigned tex_target) +{ + struct ureg_program *ureg; + struct ureg_src sampler; + struct ureg_src tex; + struct ureg_dst out, depth; + struct ureg_src imm; + + ureg = ureg_create( TGSI_PROCESSOR_FRAGMENT ); + if (ureg == NULL) + return NULL; + + sampler = ureg_DECL_sampler( ureg, 0 ); + + tex = ureg_DECL_fs_input( ureg, + TGSI_SEMANTIC_GENERIC, 0, + TGSI_INTERPOLATE_PERSPECTIVE ); + + out = ureg_DECL_output( ureg, + TGSI_SEMANTIC_COLOR, + 0 ); + + depth = ureg_DECL_output( ureg, + TGSI_SEMANTIC_POSITION, + 0 ); + + imm = ureg_imm4f( ureg, 0, 0, 0, 1 ); + + ureg_MOV( ureg, out, imm ); + + ureg_TEX( ureg, + ureg_writemask(depth, TGSI_WRITEMASK_Z), + tex_target, tex, sampler ); + ureg_END( ureg ); + + return ureg_create_shader_and_destroy( ureg, pipe ); +} + /** * Make simple fragment color pass-through shader. @@ -137,9 +191,22 @@ util_make_fragment_tex_shader(struct pipe_context *pipe ) void * 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; + struct ureg_dst dst[PIPE_MAX_COLOR_BUFS]; + int i; + + assert(num_cbufs <= PIPE_MAX_COLOR_BUFS); ureg = ureg_create( TGSI_PROCESSOR_FRAGMENT ); if (ureg == NULL) @@ -148,12 +215,13 @@ util_make_fragment_passthrough_shader(struct pipe_context *pipe) src = ureg_DECL_fs_input( ureg, TGSI_SEMANTIC_COLOR, 0, TGSI_INTERPOLATE_PERSPECTIVE ); - dst = ureg_DECL_output( ureg, TGSI_SEMANTIC_COLOR, 0 ); + for (i = 0; i < num_cbufs; i++) + dst[i] = ureg_DECL_output( ureg, TGSI_SEMANTIC_COLOR, i ); + + for (i = 0; i < num_cbufs; i++) + ureg_MOV( ureg, dst[i], src ); - ureg_MOV( ureg, dst, src ); ureg_END( ureg ); return ureg_create_shader_and_destroy( ureg, pipe ); } - - |