diff options
| author | Brian Paul <brian.paul@tungstengraphics.com> | 2008-05-14 16:09:46 -0600 |
|---|---|---|
| committer | Brian Paul <brian.paul@tungstengraphics.com> | 2008-05-14 16:09:46 -0600 |
| commit | ade508312c701ce89d3c2cd717994dbbabb4f207 (patch) | |
| tree | 7c7a35935143d90c99820025a8887c5606041db6 /src/mesa/main | |
| parent | c807c1a23fc918591e9d2f6f26c4e071a725bced (diff) | |
Updated GLSL uniform/sampler handling from gallium-0.1 branch
Previously, the shader linker combined the uniforms used by the vertex and
fragment shaders into a combined set of uniforms. This made the implementation
of glUniform*() simple, but was rather inefficient otherwise. Now each shader
gets its own set of uniforms (no more modelview matrix showing up in the
fragment shader uniforms, for example).
cherry-picked by hand from gallium-0.1 branch
Diffstat (limited to 'src/mesa/main')
| -rw-r--r-- | src/mesa/main/config.h | 1 | ||||
| -rw-r--r-- | src/mesa/main/mtypes.h | 14 |
2 files changed, 12 insertions, 3 deletions
diff --git a/src/mesa/main/config.h b/src/mesa/main/config.h index ab0f035b45..58a39d11d4 100644 --- a/src/mesa/main/config.h +++ b/src/mesa/main/config.h @@ -188,6 +188,7 @@ #define MAX_PROGRAM_ADDRESS_REGS 2 #define MAX_UNIFORMS 128 #define MAX_VARYING 8 +#define MAX_SAMPLERS 8 /*@}*/ /** For GL_NV_vertex_program */ diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h index 001240a14f..04da767ec9 100644 --- a/src/mesa/main/mtypes.h +++ b/src/mesa/main/mtypes.h @@ -1863,6 +1863,7 @@ enum register_file /** Vertex and fragment instructions */ struct prog_instruction; struct gl_program_parameter_list; +struct gl_uniform_list; /** @@ -1882,6 +1883,7 @@ struct gl_program GLbitfield InputsRead; /**< Bitmask of which input regs are read */ GLbitfield OutputsWritten; /**< Bitmask of which output regs are written to */ GLbitfield TexturesUsed[MAX_TEXTURE_IMAGE_UNITS]; /**< TEXTURE_x_BIT bitmask */ + GLbitfield SamplersUsed; /**< Bitfield of which samplers are used */ GLbitfield ShadowSamplers; /**< Texture units used for shadow sampling. */ /** Named parameters, constants, etc. from program text */ @@ -1894,6 +1896,11 @@ struct gl_program /** Vertex program user-defined attributes */ struct gl_program_parameter_list *Attributes; + /** Map from sampler unit to texture unit (set by glUniform1i()) */ + GLubyte SamplerUnits[MAX_SAMPLERS]; + /** Which texture target is being sampled (TEXTURE_1D/2D/3D/etc_INDEX) */ + GLubyte SamplerTargets[MAX_SAMPLERS]; + /** Logical counts */ /*@{*/ GLuint NumInstructions; @@ -2086,7 +2093,7 @@ struct gl_query_state /** - * A GLSL shader object. + * A GLSL vertex or fragment shader object. */ struct gl_shader { @@ -2104,7 +2111,8 @@ struct gl_shader /** - * A GLSL program object. Basically a linked collection of "shaders". + * A GLSL program object. + * Basically a linked collection of vertex and fragment shaders. */ struct gl_shader_program { @@ -2119,7 +2127,7 @@ struct gl_shader_program /* post-link info: */ struct gl_vertex_program *VertexProgram; /**< Linked vertex program */ struct gl_fragment_program *FragmentProgram; /**< Linked fragment prog */ - struct gl_program_parameter_list *Uniforms; /**< Plus constants, etc */ + struct gl_uniform_list *Uniforms; struct gl_program_parameter_list *Varying; struct gl_program_parameter_list *Attributes; /**< Vertex attributes */ GLboolean LinkStatus; /**< GL_LINK_STATUS */ |