diff options
| author | Brian <brian.paul@tungstengraphics.com> | 2007-10-24 11:37:05 -0600 |
|---|---|---|
| committer | Brian <brian.paul@tungstengraphics.com> | 2007-10-24 12:38:07 -0600 |
| commit | f68fce1f1f61997f284b77cca5b5765cd7443240 (patch) | |
| tree | e1398a0d0a38ca30a25d667cdfab0db025ebc5d5 /src/mesa/shader | |
| parent | 3a345e000350c1590367f01be5db6f0f10701283 (diff) | |
Implement gl_PointCoord attribute for GLSL fragment shaders.
Contains the normalized fragment position within a point sprite.
Diffstat (limited to 'src/mesa/shader')
| -rw-r--r-- | src/mesa/shader/slang/slang_codegen.c | 6 | ||||
| -rw-r--r-- | src/mesa/shader/slang/slang_compile.c | 11 |
2 files changed, 16 insertions, 1 deletions
diff --git a/src/mesa/shader/slang/slang_codegen.c b/src/mesa/shader/slang/slang_codegen.c index 8b2bdd74b5..fb1f9d5a20 100644 --- a/src/mesa/shader/slang/slang_codegen.c +++ b/src/mesa/shader/slang/slang_codegen.c @@ -282,6 +282,8 @@ sampler_to_texture_index(const slang_type_specifier_type type) } +#define SWIZZLE_ZWWW MAKE_SWIZZLE4(SWIZZLE_Z, SWIZZLE_W, SWIZZLE_W, SWIZZLE_W) + /** * Return the VERT_ATTRIB_* or FRAG_ATTRIB_* value that corresponds to * a vertex or fragment program input variable. Return -1 if the input @@ -316,9 +318,11 @@ _slang_input_index(const char *name, GLenum target, GLuint *swizzleOut) { "gl_FragCoord", FRAG_ATTRIB_WPOS, SWIZZLE_NOOP }, { "gl_Color", FRAG_ATTRIB_COL0, SWIZZLE_NOOP }, { "gl_SecondaryColor", FRAG_ATTRIB_COL1, SWIZZLE_NOOP }, - { "gl_FogFragCoord", FRAG_ATTRIB_FOGC, SWIZZLE_XXXX }, { "gl_TexCoord", FRAG_ATTRIB_TEX0, SWIZZLE_NOOP }, + /* note: we're packing several quantities into the fogcoord vector */ + { "gl_FogFragCoord", FRAG_ATTRIB_FOGC, SWIZZLE_XXXX }, { "gl_FrontFacing", FRAG_ATTRIB_FOGC, SWIZZLE_YYYY }, /*XXX*/ + { "gl_PointCoord", FRAG_ATTRIB_FOGC, SWIZZLE_ZWWW }, { NULL, 0, SWIZZLE_NOOP } }; GLuint i; diff --git a/src/mesa/shader/slang/slang_compile.c b/src/mesa/shader/slang/slang_compile.c index 4e29e8dcc9..2be89a5ce0 100644 --- a/src/mesa/shader/slang/slang_compile.c +++ b/src/mesa/shader/slang/slang_compile.c @@ -1983,6 +1983,10 @@ static const byte slang_120_core_gc[] = { #include "library/slang_120_core_gc.h" }; +static const byte slang_120_fragment_gc[] = { +#include "library/slang_builtin_120_fragment_gc.h" +}; + static const byte slang_common_builtin_gc[] = { #include "library/slang_common_builtin_gc.h" }; @@ -2059,6 +2063,13 @@ compile_object(grammar * id, const char *source, slang_code_object * object, SLANG_UNIT_FRAGMENT_BUILTIN, infolog, NULL, &object->builtin[SLANG_BUILTIN_COMMON], NULL)) return GL_FALSE; +#if FEATURE_ARB_shading_language_120 + if (!compile_binary(slang_120_fragment_gc, + &object->builtin[SLANG_BUILTIN_TARGET], + SLANG_UNIT_FRAGMENT_BUILTIN, infolog, NULL, + &object->builtin[SLANG_BUILTIN_COMMON], NULL)) + return GL_FALSE; +#endif } else if (type == SLANG_UNIT_VERTEX_SHADER) { if (!compile_binary(slang_vertex_builtin_gc, |