diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/glsl/ir.h | 6 | ||||
| -rw-r--r-- | src/mesa/shader/ir_to_mesa.cpp | 138 |
2 files changed, 142 insertions, 2 deletions
diff --git a/src/glsl/ir.h b/src/glsl/ir.h index de1124975d..65026ef1f5 100644 --- a/src/glsl/ir.h +++ b/src/glsl/ir.h @@ -73,6 +73,7 @@ public: virtual class ir_function * as_function() { return NULL; } virtual class ir_dereference * as_dereference() { return NULL; } virtual class ir_dereference_array * as_dereference_array() { return NULL; } + virtual class ir_dereference_variable *as_dereference_variable() { return NULL; } virtual class ir_rvalue * as_rvalue() { return NULL; } virtual class ir_loop * as_loop() { return NULL; } virtual class ir_assignment * as_assignment() { return NULL; } @@ -987,6 +988,11 @@ public: virtual ir_instruction *clone(struct hash_table *) const; + virtual ir_dereference_variable *as_dereference_variable() + { + return this; + } + /** * Get the variable that is ultimately referenced by an r-value */ diff --git a/src/mesa/shader/ir_to_mesa.cpp b/src/mesa/shader/ir_to_mesa.cpp index ab8aca0a81..f04518175d 100644 --- a/src/mesa/shader/ir_to_mesa.cpp +++ b/src/mesa/shader/ir_to_mesa.cpp @@ -80,6 +80,8 @@ public: /** Pointer to the ir source this tree came from for debugging */ ir_instruction *ir; GLboolean cond_update; + int sampler; /**< sampler index */ + int tex_target; /**< One of TEXTURE_*_INDEX */ }; class temp_entry : public exec_node { @@ -173,6 +175,12 @@ public: ir_to_mesa_src_reg src0, ir_to_mesa_src_reg src1); + int *sampler_map; + int sampler_map_size; + + void map_sampler(int location, int sampler); + int get_sampler_number(int location); + void *mem_ctx; }; @@ -293,6 +301,25 @@ ir_to_mesa_visitor::ir_to_mesa_emit_op1(ir_instruction *ir, src0, ir_to_mesa_undef, ir_to_mesa_undef); } +void +ir_to_mesa_visitor::map_sampler(int location, int sampler) +{ + 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; + } + + this->sampler_map[location] = sampler; +} + +int +ir_to_mesa_visitor::get_sampler_number(int location) +{ + assert(location < this->sampler_map_size); + return this->sampler_map[location]; +} + inline ir_to_mesa_dst_reg ir_to_mesa_dst_reg_from_src(ir_to_mesa_src_reg reg) { @@ -901,6 +928,21 @@ ir_to_mesa_visitor::visit(ir_dereference_variable *ir) break; /* 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); + + entry = new(mem_ctx) temp_entry(ir->var, PROGRAM_SAMPLER, sampler); + this->variable_storage.push_tail(entry); + break; + } + assert(ir->var->type->gl_type != 0 && ir->var->type->gl_type != GL_INVALID_ENUM); loc = _mesa_add_uniform(this->prog->Parameters, @@ -908,6 +950,7 @@ ir_to_mesa_visitor::visit(ir_dereference_variable *ir) type_size(ir->var->type) * 4, ir->var->type->gl_type, NULL); + /* Always mark the uniform used at this point. If it isn't * used, dead code elimination should have nuked the decl already. */ @@ -1176,9 +1219,77 @@ ir_to_mesa_visitor::visit(ir_call *ir) void ir_to_mesa_visitor::visit(ir_texture *ir) { - assert(0); + ir_to_mesa_src_reg result_src, coord; + ir_to_mesa_dst_reg result_dst, lod_info; + ir_to_mesa_instruction *inst = NULL; ir->coordinate->accept(this); + coord = this->result; + + /* Storage for our result. Ideally for an assignment we'd be using + * the actual storage for the result here, instead. + */ + result_src = get_temp(glsl_type::vec4_type); + result_dst = ir_to_mesa_dst_reg_from_src(result_src); + + switch (ir->op) { + case ir_tex: + inst = ir_to_mesa_emit_op1(ir, OPCODE_TEX, result_dst, coord); + break; + case ir_txb: + /* Mesa IR stores bias in the last channel of the coords. */ + lod_info = ir_to_mesa_dst_reg_from_src(coord); + lod_info.writemask = WRITEMASK_W; + ir->lod_info.bias->accept(this); + ir_to_mesa_emit_op1(ir, OPCODE_MOV, lod_info, this->result); + + inst = ir_to_mesa_emit_op1(ir, OPCODE_TXB, result_dst, coord); + break; + case ir_txl: + /* Mesa IR stores lod in the last channel of the coords. */ + lod_info = ir_to_mesa_dst_reg_from_src(coord); + lod_info.writemask = WRITEMASK_W; + ir->lod_info.lod->accept(this); + ir_to_mesa_emit_op1(ir, OPCODE_MOV, lod_info, this->result); + + inst = ir_to_mesa_emit_op1(ir, OPCODE_TXL, result_dst, coord); + break; + case ir_txd: + case ir_txf: + assert(!"GLSL 1.30 features unsupported"); + break; + } + + ir_dereference_variable *sampler = ir->sampler->as_dereference_variable(); + assert(sampler); /* FINISHME: sampler arrays */ + /* generate the mapping, remove when we generate storage at + * declaration time + */ + sampler->accept(this); + + inst->sampler = get_sampler_number(sampler->var->location); + + switch (sampler->type->sampler_dimensionality) { + case GLSL_SAMPLER_DIM_1D: + inst->tex_target = TEXTURE_1D_INDEX; + break; + case GLSL_SAMPLER_DIM_2D: + inst->tex_target = TEXTURE_2D_INDEX; + break; + case GLSL_SAMPLER_DIM_3D: + inst->tex_target = TEXTURE_3D_INDEX; + break; + case GLSL_SAMPLER_DIM_CUBE: + inst->tex_target = TEXTURE_CUBE_INDEX; + break; + default: + assert(!"FINISHME: other texture targets"); + } + + assert(!ir->projector); /* FINISHME */ + assert(!ir->shadow_comparitor); /* FINISHME */ + + this->result = result_src; } void @@ -1245,6 +1356,8 @@ ir_to_mesa_visitor::ir_to_mesa_visitor() { result.file = PROGRAM_UNDEFINED; next_temp = 1; + sampler_map = NULL; + sampler_map_size = 0; } static struct prog_src_register @@ -1359,9 +1472,11 @@ print_program(struct prog_instruction *mesa_instructions, static void count_resources(struct gl_program *prog) { + unsigned int i; + prog->InputsRead = 0; prog->OutputsWritten = 0; - unsigned int i; + prog->SamplersUsed = 0; for (i = 0; i < prog->NumInstructions; i++) { struct prog_instruction *inst = &prog->Instructions[i]; @@ -1390,7 +1505,24 @@ count_resources(struct gl_program *prog) break; } } + + /* Instead of just using the uniform's value to map to a + * sampler, Mesa first allocates a separate number for the + * sampler (_mesa_add_sampler), then we reindex it down to a + * small integer (sampler_map[], SamplersUsed), then that gets + * mapped to the uniform's value, and we get an actual sampler. + */ + if (_mesa_is_tex_instruction(inst->Opcode)) { + prog->SamplerTargets[inst->TexSrcUnit] = + (gl_texture_index)inst->TexSrcTarget; + prog->SamplersUsed |= 1 << inst->TexSrcUnit; + if (inst->TexShadow) { + prog->ShadowSamplers |= 1 << inst->TexSrcUnit; + } + } } + + _mesa_update_shader_textures_used(prog); } /* Each stage has some uniforms in its Parameters list. The Uniforms @@ -1474,6 +1606,8 @@ get_mesa_program(GLcontext *ctx, void *mem_ctx, struct glsl_shader *shader) mesa_inst->SrcReg[0] = mesa_src_reg_from_ir_src_reg(inst->src_reg[0]); mesa_inst->SrcReg[1] = mesa_src_reg_from_ir_src_reg(inst->src_reg[1]); mesa_inst->SrcReg[2] = mesa_src_reg_from_ir_src_reg(inst->src_reg[2]); + mesa_inst->TexSrcUnit = inst->sampler; + mesa_inst->TexSrcTarget = inst->tex_target; mesa_instruction_annotation[i] = inst->ir; mesa_inst++; |