diff options
author | Eric Anholt <eric@anholt.net> | 2010-08-04 14:21:01 -0700 |
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committer | Eric Anholt <eric@anholt.net> | 2010-08-04 14:21:01 -0700 |
commit | fe1918c71c3e387939cef9359d4b31ebc5c11a17 (patch) | |
tree | 7918f33a2ed12ce977bedc70c883746f1d0c0736 /src/mesa/program/ir_to_mesa.cpp | |
parent | 8e181b629f97ada65cc1b8a17ba42edc2ea77254 (diff) |
ir_to_mesa: Clean up the mapping of samplers to Mesa's sampler uniforms.
Instead of using a linker-assigned location (since samplers don't
actually take up uniform space, being a link-time choice), use the
sampler's varaible pointer as a hash key.
Diffstat (limited to 'src/mesa/program/ir_to_mesa.cpp')
-rw-r--r-- | src/mesa/program/ir_to_mesa.cpp | 42 |
1 files changed, 22 insertions, 20 deletions
diff --git a/src/mesa/program/ir_to_mesa.cpp b/src/mesa/program/ir_to_mesa.cpp index dcf8c497c6..777b4d91f4 100644 --- a/src/mesa/program/ir_to_mesa.cpp +++ b/src/mesa/program/ir_to_mesa.cpp @@ -45,6 +45,7 @@ extern "C" { #include "main/mtypes.h" #include "main/shaderobj.h" #include "main/uniforms.h" +#include "program/hash_table.h" #include "program/prog_instruction.h" #include "program/prog_optimize.h" #include "program/prog_print.h" @@ -160,6 +161,7 @@ public: class ir_to_mesa_visitor : public ir_visitor { public: ir_to_mesa_visitor(); + ~ir_to_mesa_visitor(); function_entry *current_function; @@ -261,11 +263,10 @@ public: ir_constant *constant, struct ir_to_mesa_dst_reg temp); - int *sampler_map; - int sampler_map_size; + struct hash_table *sampler_map; - void map_sampler(int location, int sampler); - int get_sampler_number(int location); + void set_sampler_location(ir_variable *sampler, int location); + int get_sampler_location(ir_variable *sampler); void *mem_ctx; }; @@ -370,22 +371,22 @@ ir_to_mesa_visitor::ir_to_mesa_emit_op0(ir_instruction *ir, } void -ir_to_mesa_visitor::map_sampler(int location, int sampler) +ir_to_mesa_visitor::set_sampler_location(ir_variable *sampler, int location) { - if (this->sampler_map_size <= location) { - this->sampler_map = talloc_realloc(this->mem_ctx, this->sampler_map, - int, location + 1); - this->sampler_map_size = location + 1; + if (this->sampler_map == NULL) { + this->sampler_map = hash_table_ctor(0, hash_table_pointer_hash, + hash_table_pointer_compare); } - this->sampler_map[location] = sampler; + hash_table_insert(this->sampler_map, (void *)(uintptr_t)location, sampler); } int -ir_to_mesa_visitor::get_sampler_number(int location) +ir_to_mesa_visitor::get_sampler_location(ir_variable *sampler) { - assert(location < this->sampler_map_size); - return this->sampler_map[location]; + void *result = hash_table_find(this->sampler_map, sampler); + + return (int)(uintptr_t)result; } inline ir_to_mesa_dst_reg @@ -1394,14 +1395,10 @@ ir_to_mesa_visitor::visit(ir_dereference_variable *ir) /* FINISHME: Fix up uniform name for arrays and things */ if (ir->var->type->base_type == GLSL_TYPE_SAMPLER) { - /* FINISHME: we whack the location of the var here, which - * is probably not expected. But we need to communicate - * mesa's sampler number to the tex instruction. - */ int sampler = _mesa_add_sampler(this->prog->Parameters, ir->var->name, ir->var->type->gl_type); - map_sampler(ir->var->location, sampler); + set_sampler_location(ir->var, sampler); entry = new(mem_ctx) variable_storage(ir->var, PROGRAM_SAMPLER, sampler); @@ -2059,7 +2056,7 @@ ir_to_mesa_visitor::visit(ir_texture *ir) */ sampler->accept(this); - inst->sampler = get_sampler_number(sampler->var->location); + inst->sampler = get_sampler_location(sampler->var); switch (sampler->type->sampler_dimensionality) { case GLSL_SAMPLER_DIM_1D: @@ -2166,10 +2163,15 @@ ir_to_mesa_visitor::ir_to_mesa_visitor() next_temp = 1; next_signature_id = 1; sampler_map = NULL; - sampler_map_size = 0; current_function = NULL; } +ir_to_mesa_visitor::~ir_to_mesa_visitor() +{ + if (this->sampler_map) + hash_table_dtor(this->sampler_map); +} + static struct prog_src_register mesa_src_reg_from_ir_src_reg(ir_to_mesa_src_reg reg) { |