From 32be81de39f7548e353afabf1215b0ea7c7b0916 Mon Sep 17 00:00:00 2001 From: Ian Romanick Date: Mon, 14 Nov 2011 14:02:09 -0800 Subject: [PATCH] glsl: Add glsl_type::sampler_index Signed-off-by: Ian Romanick Reviewed-by: Eric Anholt Reviewed-by: Kenneth Graunke --- src/glsl/glsl_types.cpp | 29 +++++++++++++++++++++++++++++ src/glsl/glsl_types.h | 6 ++++++ 2 files changed, 35 insertions(+) diff --git a/src/glsl/glsl_types.cpp b/src/glsl/glsl_types.cpp index 8587da0a3a2..d4385a644ca 100644 --- a/src/glsl/glsl_types.cpp +++ b/src/glsl/glsl_types.cpp @@ -127,6 +127,35 @@ glsl_type::contains_sampler() const } } +gl_texture_index +glsl_type::sampler_index() const +{ + const glsl_type *const t = (this->is_array()) ? this->fields.array : this; + + assert(t->is_sampler()); + + switch (t->sampler_dimensionality) { + case GLSL_SAMPLER_DIM_1D: + return (t->sampler_array) ? TEXTURE_1D_ARRAY_INDEX : TEXTURE_1D_INDEX; + case GLSL_SAMPLER_DIM_2D: + return (t->sampler_array) ? TEXTURE_2D_ARRAY_INDEX : TEXTURE_2D_INDEX; + case GLSL_SAMPLER_DIM_3D: + return TEXTURE_3D_INDEX; + case GLSL_SAMPLER_DIM_CUBE: + return TEXTURE_CUBE_INDEX; + case GLSL_SAMPLER_DIM_RECT: + return TEXTURE_RECT_INDEX; + case GLSL_SAMPLER_DIM_BUF: + assert(!"FINISHME: Implement ARB_texture_buffer_object"); + break; + case GLSL_SAMPLER_DIM_EXTERNAL: + return TEXTURE_EXTERNAL_INDEX; + default: + assert(!"Should not get here."); + break; + } +} + void glsl_type::generate_100ES_types(glsl_symbol_table *symtab) { diff --git a/src/glsl/glsl_types.h b/src/glsl/glsl_types.h index 4ac90118b86..2997c931149 100644 --- a/src/glsl/glsl_types.h +++ b/src/glsl/glsl_types.h @@ -28,6 +28,7 @@ #include #include +#include "main/mtypes.h" /* for gl_texture_index, C++'s enum rules are broken */ #ifdef __cplusplus extern "C" { @@ -353,6 +354,11 @@ struct glsl_type { */ bool contains_sampler() const; + /** + * Get the Mesa texture target index for a sampler type. + */ + gl_texture_index sampler_index() const; + /** * Query whether or not a type is an array */ -- 2.30.2