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#include "glsl_optimizer.h"
#include "ast.h"
#include "glsl_parser_extras.h"
#include "glsl_parser.h"
#include "ir_optimization.h"
// FIXME: metal
// #include "ir_print_metal_visitor.h"
#include "ir_print_glsl_visitor.h"
#include "ir_print_visitor.h"
// FIXME: stats
// #include "ir_stats.h"
#include "loop_analysis.h"
#include "program.h"
#include "linker.h"
#include "main/mtypes.h"
#include "standalone_scaffolding.h"
#include "builtin_functions.h"
#include "program/program.h"
static void
init_gl_program(struct gl_program *prog, bool is_arb_asm, gl_shader_stage stage)
{
prog->RefCount = 1;
prog->Format = GL_PROGRAM_FORMAT_ASCII_ARB;
prog->is_arb_asm = is_arb_asm;
prog->info.stage = stage;
}
static struct gl_program *
new_program(UNUSED struct gl_context *ctx, gl_shader_stage stage,
UNUSED GLuint id, bool is_arb_asm)
{
struct gl_program *prog = rzalloc(NULL, struct gl_program);
init_gl_program(prog, is_arb_asm, stage);
return prog;
}
static void
initialize_mesa_context(struct gl_context *ctx, glslopt_target api)
{
gl_api mesaAPI;
switch(api)
{
default:
case kGlslTargetOpenGL:
mesaAPI = API_OPENGL_COMPAT;
break;
case kGlslTargetOpenGLES20:
mesaAPI = API_OPENGLES2;
break;
case kGlslTargetOpenGLES30:
mesaAPI = API_OPENGL_CORE;
break;
case kGlslTargetMetal:
mesaAPI = API_OPENGL_CORE;
break;
}
initialize_context_to_defaults (ctx, mesaAPI);
_mesa_glsl_builtin_functions_init_or_ref();
switch(api)
{
default:
case kGlslTargetOpenGL:
ctx->Const.GLSLVersion = 150;
break;
case kGlslTargetOpenGLES20:
ctx->Extensions.OES_standard_derivatives = true;
// FIXME: extensions
// ctx->Extensions.EXT_shadow_samplers = true;
// ctx->Extensions.EXT_frag_depth = true;
ctx->Extensions.EXT_shader_framebuffer_fetch = true;
break;
case kGlslTargetOpenGLES30:
ctx->Extensions.ARB_ES3_1_compatibility = true;
ctx->Extensions.EXT_shader_framebuffer_fetch = true;
break;
case kGlslTargetMetal:
ctx->Extensions.ARB_ES3_compatibility = true;
ctx->Extensions.EXT_shader_framebuffer_fetch = true;
break;
}
// allow high amount of texcoords
ctx->Const.MaxTextureCoordUnits = 16;
ctx->Const.Program[MESA_SHADER_VERTEX].MaxTextureImageUnits = 16;
ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits = 16;
ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxTextureImageUnits = 16;
// For GLES2.0 this would be 1, but we do support GL_EXT_draw_buffers
ctx->Const.MaxDrawBuffers = 4;
ctx->Driver.NewProgram = new_program;
}
struct glslopt_ctx {
glslopt_ctx (glslopt_target target) {
this->target = target;
mem_ctx = ralloc_context (NULL);
initialize_mesa_context (&mesa_ctx, target);
}
~glslopt_ctx() {
ralloc_free (mem_ctx);
}
struct gl_context mesa_ctx;
void* mem_ctx;
glslopt_target target;
};
glslopt_ctx* glslopt_initialize (glslopt_target target)
{
return new glslopt_ctx(target);
}
void glslopt_cleanup (glslopt_ctx* ctx)
{
delete ctx;
}
void glslopt_set_max_unroll_iterations (glslopt_ctx* ctx, unsigned iterations)
{
for (int i = 0; i < MESA_SHADER_STAGES; ++i)
ctx->mesa_ctx.Const.ShaderCompilerOptions[i].MaxUnrollIterations = iterations;
}
struct glslopt_shader_var
{
const char* name;
glslopt_basic_type type;
glslopt_precision prec;
int vectorSize;
int matrixSize;
int arraySize;
int location;
};
struct glslopt_shader
{
static void* operator new(size_t size, void *ctx)
{
void *node;
node = ralloc_size(ctx, size);
assert(node != NULL);
return node;
}
static void operator delete(void *node)
{
ralloc_free(node);
}
glslopt_shader ()
: rawOutput(0)
, optimizedOutput(0)
, status(false)
, uniformCount(0)
, uniformsSize(0)
, inputCount(0)
, textureCount(0)
, statsMath(0)
, statsTex(0)
, statsFlow(0)
{
infoLog = "Shader not compiled yet";
whole_program = rzalloc (NULL, struct gl_shader_program);
assert(whole_program != NULL);
whole_program->data = rzalloc(whole_program, struct gl_shader_program_data);
assert(whole_program->data != NULL);
whole_program->data->InfoLog = ralloc_strdup(whole_program->data, "");
whole_program->Shaders = reralloc(whole_program, whole_program->Shaders, struct gl_shader *, whole_program->NumShaders + 1);
assert(whole_program->Shaders != NULL);
shader = rzalloc(whole_program, gl_shader);
whole_program->Shaders[whole_program->NumShaders] = shader;
whole_program->NumShaders++;
whole_program->data->LinkStatus = LINKING_SUCCESS;
}
~glslopt_shader()
{
for (unsigned i = 0; i < MESA_SHADER_STAGES; i++)
ralloc_free(whole_program->_LinkedShaders[i]);
ralloc_free(whole_program);
ralloc_free(rawOutput);
ralloc_free(optimizedOutput);
}
struct gl_shader_program* whole_program;
struct gl_shader* shader;
static const int kMaxShaderUniforms = 1024;
static const int kMaxShaderInputs = 128;
static const int kMaxShaderTextures = 128;
glslopt_shader_var uniforms[kMaxShaderUniforms];
glslopt_shader_var inputs[kMaxShaderInputs];
glslopt_shader_var textures[kMaxShaderInputs];
int uniformCount, uniformsSize;
int inputCount;
int textureCount;
int statsMath, statsTex, statsFlow;
char* rawOutput;
char* optimizedOutput;
const char* infoLog;
bool status;
};
static inline void debug_print_ir (const char* name, exec_list* ir, _mesa_glsl_parse_state* state, void* memctx)
{
#if 0
printf("**** %s:\n", name);
// _mesa_print_ir (ir, state);
char* foobar = _mesa_print_ir_glsl(ir, state, ralloc_strdup(memctx, ""), kPrintGlslFragment);
printf("%s\n", foobar);
validate_ir_tree(ir);
#endif
}
// FIXME: precision
// struct precision_ctx
// {
// exec_list* root_ir;
// bool res;
// };
// static void propagate_precision_deref(ir_instruction *ir, void *data)
// {
// // variable deref with undefined precision: take from variable itself
// ir_dereference_variable* der = ir->as_dereference_variable();
// if (der && der->get_precision() == glsl_precision_undefined && der->var->data.precision != glsl_precision_undefined)
// {
// der->set_precision ((glsl_precision)der->var->data.precision);
// ((precision_ctx*)data)->res = true;
// }
// // array deref with undefined precision: take from array itself
// ir_dereference_array* der_arr = ir->as_dereference_array();
// if (der_arr && der_arr->get_precision() == glsl_precision_undefined && der_arr->array->get_precision() != glsl_precision_undefined)
// {
// der_arr->set_precision (der_arr->array->get_precision());
// ((precision_ctx*)data)->res = true;
// }
// // swizzle with undefined precision: take from swizzle argument
// ir_swizzle* swz = ir->as_swizzle();
// if (swz && swz->get_precision() == glsl_precision_undefined && swz->val->get_precision() != glsl_precision_undefined)
// {
// swz->set_precision (swz->val->get_precision());
// ((precision_ctx*)data)->res = true;
// }
// }
// static void propagate_precision_expr(ir_instruction *ir, void *data)
// {
// ir_expression* expr = ir->as_expression();
// if (!expr)
// return;
// if (expr->get_precision() != glsl_precision_undefined)
// return;
// glsl_precision prec_params_max = glsl_precision_undefined;
// for (int i = 0; i < (int)expr->get_num_operands(); ++i)
// {
// ir_rvalue* op = expr->operands[i];
// if (op && op->get_precision() != glsl_precision_undefined)
// prec_params_max = higher_precision (prec_params_max, op->get_precision());
// }
// if (expr->get_precision() != prec_params_max)
// {
// expr->set_precision (prec_params_max);
// ((precision_ctx*)data)->res = true;
// }
// }
// static void propagate_precision_texture(ir_instruction *ir, void *data)
// {
// ir_texture* tex = ir->as_texture();
// if (!tex)
// return;
// glsl_precision sampler_prec = tex->sampler->get_precision();
// if (tex->get_precision() == sampler_prec || sampler_prec == glsl_precision_undefined)
// return;
// // set precision of ir_texture node to that of the sampler itself
// tex->set_precision(sampler_prec);
// ((precision_ctx*)data)->res = true;
// }
// struct undefined_ass_ctx
// {
// ir_variable* var;
// bool res;
// };
// static void has_only_undefined_precision_assignments(ir_instruction *ir, void *data)
// {
// ir_assignment* ass = ir->as_assignment();
// if (!ass)
// return;
// undefined_ass_ctx* ctx = (undefined_ass_ctx*)data;
// if (ass->whole_variable_written() != ctx->var)
// return;
// glsl_precision prec = ass->rhs->get_precision();
// if (prec == glsl_precision_undefined)
// return;
// ctx->res = false;
// }
// static void propagate_precision_assign(ir_instruction *ir, void *data)
// {
// ir_assignment* ass = ir->as_assignment();
// if (!ass || !ass->lhs || !ass->rhs)
// return;
// glsl_precision lp = ass->lhs->get_precision();
// glsl_precision rp = ass->rhs->get_precision();
// // for assignments with LHS having undefined precision, take it from RHS
// if (rp != glsl_precision_undefined)
// {
// ir_variable* lhs_var = ass->lhs->variable_referenced();
// if (lp == glsl_precision_undefined)
// {
// if (lhs_var)
// lhs_var->data.precision = rp;
// ass->lhs->set_precision (rp);
// ((precision_ctx*)data)->res = true;
// }
// return;
// }
// // for assignments where LHS has precision, but RHS is a temporary variable
// // with undefined precision that's only assigned from other undefined precision
// // sources -> make the RHS variable take LHS precision
// if (lp != glsl_precision_undefined && rp == glsl_precision_undefined)
// {
// ir_dereference* deref = ass->rhs->as_dereference();
// if (deref)
// {
// ir_variable* rhs_var = deref->variable_referenced();
// if (rhs_var && rhs_var->data.mode == ir_var_temporary && rhs_var->data.precision == glsl_precision_undefined)
// {
// undefined_ass_ctx ctx;
// ctx.var = rhs_var;
// // find if we only assign to it from undefined precision sources
// ctx.res = true;
// exec_list* root_ir = ((precision_ctx*)data)->root_ir;
// foreach_in_list(ir_instruction, inst, root_ir)
// {
// visit_tree (ir, has_only_undefined_precision_assignments, &ctx);
// }
// if (ctx.res)
// {
// rhs_var->data.precision = lp;
// ass->rhs->set_precision(lp);
// ((precision_ctx*)data)->res = true;
// }
// }
// }
// return;
// }
// }
// static void propagate_precision_call(ir_instruction *ir, void *data)
// {
// ir_call* call = ir->as_call();
// if (!call)
// return;
// if (!call->return_deref)
// return;
// if (call->return_deref->get_precision() == glsl_precision_undefined /*&& call->callee->precision == glsl_precision_undefined*/)
// {
// glsl_precision prec_params_max = glsl_precision_undefined;
// foreach_two_lists(formal_node, &call->callee->parameters,
// actual_node, &call->actual_parameters) {
// ir_variable* sig_param = (ir_variable*)formal_node;
// ir_rvalue* param = (ir_rvalue*)actual_node;
// glsl_precision p = (glsl_precision)sig_param->data.precision;
// if (p == glsl_precision_undefined)
// p = param->get_precision();
// prec_params_max = higher_precision (prec_params_max, p);
// }
// if (call->return_deref->get_precision() != prec_params_max)
// {
// call->return_deref->set_precision (prec_params_max);
// ((precision_ctx*)data)->res = true;
// }
// }
// }
// static bool propagate_precision(exec_list* list, bool assign_high_to_undefined)
// {
// bool anyProgress = false;
// precision_ctx ctx;
// do {
// ctx.res = false;
// ctx.root_ir = list;
// foreach_in_list(ir_instruction, ir, list)
// {
// visit_tree (ir, propagate_precision_texture, &ctx);
// visit_tree (ir, propagate_precision_deref, &ctx);
// bool hadProgress = ctx.res;
// ctx.res = false;
// visit_tree (ir, propagate_precision_assign, &ctx);
// if (ctx.res)
// {
// // assignment precision propagation might have added precision
// // to some variables; need to propagate dereference precision right
// // after that too.
// visit_tree (ir, propagate_precision_deref, &ctx);
// }
// ctx.res |= hadProgress;
// visit_tree (ir, propagate_precision_call, &ctx);
// visit_tree (ir, propagate_precision_expr, &ctx);
// }
// anyProgress |= ctx.res;
// } while (ctx.res);
// anyProgress |= ctx.res;
// // for globals that have undefined precision, set it to highp
// if (assign_high_to_undefined)
// {
// foreach_in_list(ir_instruction, ir, list)
// {
// ir_variable* var = ir->as_variable();
// if (var)
// {
// if (var->data.precision == glsl_precision_undefined)
// {
// var->data.precision = glsl_precision_high;
// anyProgress = true;
// }
// }
// }
// }
// return anyProgress;
// }
static void do_optimization_passes(exec_list* ir, bool linked, _mesa_glsl_parse_state* state, void* mem_ctx)
{
bool progress;
// FIXME: Shouldn't need to bound the number of passes
int passes = 0,
kMaximumPasses = 1000;
do {
progress = false;
++passes;
bool progress2;
debug_print_ir ("Initial", ir, state, mem_ctx);
if (linked) {
progress2 = do_function_inlining(ir); progress |= progress2; if (progress2) debug_print_ir ("After inlining", ir, state, mem_ctx);
progress2 = do_dead_functions(ir); progress |= progress2; if (progress2) debug_print_ir ("After dead functions", ir, state, mem_ctx);
progress2 = do_structure_splitting(ir); progress |= progress2; if (progress2) debug_print_ir ("After struct splitting", ir, state, mem_ctx);
}
progress2 = do_if_simplification(ir); progress |= progress2; if (progress2) debug_print_ir ("After if simpl", ir, state, mem_ctx);
progress2 = opt_flatten_nested_if_blocks(ir); progress |= progress2; if (progress2) debug_print_ir ("After if flatten", ir, state, mem_ctx);
// progress2 = propagate_precision (ir, state->metal_target); progress |= progress2; if (progress2) debug_print_ir ("After prec propagation", ir, state, mem_ctx);
progress2 = do_copy_propagation_elements(ir); progress |= progress2; if (progress2) debug_print_ir ("After copy propagation elems", ir, state, mem_ctx);
if (linked)
{
progress2 = do_vectorize(ir); progress |= progress2; if (progress2) debug_print_ir ("After vectorize", ir, state, mem_ctx);
}
if (linked) {
progress2 = do_dead_code(ir,false); progress |= progress2; if (progress2) debug_print_ir ("After dead code", ir, state, mem_ctx);
} else {
progress2 = do_dead_code_unlinked(ir); progress |= progress2; if (progress2) debug_print_ir ("After dead code unlinked", ir, state, mem_ctx);
}
progress2 = do_dead_code_local(ir); progress |= progress2; if (progress2) debug_print_ir ("After dead code local", ir, state, mem_ctx);
// progress2 = propagate_precision (ir, state->metal_target); progress |= progress2; if (progress2) debug_print_ir ("After prec propagation", ir, state, mem_ctx);
progress2 = do_tree_grafting(ir); progress |= progress2; if (progress2) debug_print_ir ("After tree grafting", ir, state, mem_ctx);
progress2 = do_constant_propagation(ir); progress |= progress2; if (progress2) debug_print_ir ("After const propagation", ir, state, mem_ctx);
if (linked) {
progress2 = do_constant_variable(ir); progress |= progress2; if (progress2) debug_print_ir ("After const variable", ir, state, mem_ctx);
} else {
progress2 = do_constant_variable_unlinked(ir); progress |= progress2; if (progress2) debug_print_ir ("After const variable unlinked", ir, state, mem_ctx);
}
progress2 = do_constant_folding(ir); progress |= progress2; if (progress2) debug_print_ir ("After const folding", ir, state, mem_ctx);
progress2 = do_minmax_prune(ir); progress |= progress2; if (progress2) debug_print_ir ("After minmax prune", ir, state, mem_ctx);
progress2 = do_rebalance_tree(ir); progress |= progress2; if (progress2) debug_print_ir ("After rebalance tree", ir, state, mem_ctx);
progress2 = do_algebraic(ir, state->ctx->Const.NativeIntegers, &state->ctx->Const.ShaderCompilerOptions[state->stage]); progress |= progress2; if (progress2) debug_print_ir ("After algebraic", ir, state, mem_ctx);
progress2 = do_lower_jumps(ir); progress |= progress2; if (progress2) debug_print_ir ("After lower jumps", ir, state, mem_ctx);
progress2 = do_vec_index_to_swizzle(ir); progress |= progress2; if (progress2) debug_print_ir ("After vec index to swizzle", ir, state, mem_ctx);
progress2 = lower_vector_insert(ir, false); progress |= progress2; if (progress2) debug_print_ir ("After lower vector insert", ir, state, mem_ctx);
progress2 = optimize_swizzles(ir); progress |= progress2; if (progress2) debug_print_ir ("After optimize swizzles", ir, state, mem_ctx);
progress2 = optimize_split_arrays(ir, linked); progress |= progress2; if (progress2) debug_print_ir ("After split arrays", ir, state, mem_ctx);
progress2 = optimize_redundant_jumps(ir); progress |= progress2; if (progress2) debug_print_ir ("After redundant jumps", ir, state, mem_ctx);
// do loop stuff only when linked; otherwise causes duplicate loop induction variable
// problems (ast-in.txt test)
if (linked)
{
loop_state *ls = analyze_loop_variables(ir);
if (ls->loop_found) {
progress2 = unroll_loops(ir, ls, &state->ctx->Const.ShaderCompilerOptions[state->stage]); progress |= progress2; if (progress2) debug_print_ir ("After unroll", ir, state, mem_ctx);
}
delete ls;
}
} while (progress && passes < kMaximumPasses);
// GLSL/ES does not have saturate, so lower it
lower_instructions(ir, SAT_TO_CLAMP);
}
// FIXME
// static void glsl_type_to_optimizer_desc(const glsl_type* type, glsl_precision prec, glslopt_shader_var* out)
// {
// out->arraySize = type->array_size();
// // type; use element type when in array
// if (type->is_array())
// type = type->element_type();
// if (type->is_float())
// out->type = kGlslTypeFloat;
// else if (type->is_integer())
// out->type = kGlslTypeInt;
// else if (type->is_boolean())
// out->type = kGlslTypeBool;
// else if (type->is_sampler())
// {
// if (type->sampler_dimensionality == GLSL_SAMPLER_DIM_2D)
// {
// if (type->sampler_shadow)
// out->type = kGlslTypeTex2DShadow;
// else if (type->sampler_array)
// out->type = kGlslTypeTex2DArray;
// else
// out->type = kGlslTypeTex2D;
// }
// else if (type->sampler_dimensionality == GLSL_SAMPLER_DIM_3D)
// out->type = kGlslTypeTex3D;
// else if (type->sampler_dimensionality == GLSL_SAMPLER_DIM_CUBE)
// out->type = kGlslTypeTexCube;
// else
// out->type = kGlslTypeOther;
// }
// else
// out->type = kGlslTypeOther;
// // sizes
// out->vectorSize = type->vector_elements;
// out->matrixSize = type->matrix_columns;
// // precision
// switch (prec)
// {
// case glsl_precision_high: out->prec = kGlslPrecHigh; break;
// case glsl_precision_medium: out->prec = kGlslPrecMedium; break;
// case glsl_precision_low: out->prec = kGlslPrecLow; break;
// default: out->prec = kGlslPrecHigh; break;
// }
// }
static void find_shader_variables(glslopt_shader* sh, exec_list* ir)
{
foreach_in_list(ir_instruction, node, ir)
{
ir_variable* const var = node->as_variable();
if (var == NULL)
continue;
if (var->data.mode == ir_var_shader_in)
{
if (sh->inputCount >= glslopt_shader::kMaxShaderInputs)
continue;
glslopt_shader_var& v = sh->inputs[sh->inputCount];
v.name = ralloc_strdup(sh, var->name);
// glsl_type_to_optimizer_desc(var->type, (glsl_precision)var->data.precision, &v);
v.location = var->data.explicit_location ? var->data.location : -1;
++sh->inputCount;
}
if (var->data.mode == ir_var_uniform && !var->type->is_sampler())
{
if (sh->uniformCount >= glslopt_shader::kMaxShaderUniforms)
continue;
glslopt_shader_var& v = sh->uniforms[sh->uniformCount];
v.name = ralloc_strdup(sh, var->name);
// glsl_type_to_optimizer_desc(var->type, (glsl_precision)var->data.precision, &v);
v.location = var->data.explicit_location ? var->data.location : -1;
++sh->uniformCount;
}
if (var->data.mode == ir_var_uniform && var->type->is_sampler())
{
if (sh->textureCount >= glslopt_shader::kMaxShaderTextures)
continue;
glslopt_shader_var& v = sh->textures[sh->textureCount];
v.name = ralloc_strdup(sh, var->name);
// glsl_type_to_optimizer_desc(var->type, (glsl_precision)var->data.precision, &v);
v.location = var->data.explicit_location ? var->data.location : -1;
++sh->textureCount;
}
}
}
glslopt_shader* glslopt_optimize (glslopt_ctx* ctx, glslopt_shader_type type, const char* shaderSource, unsigned options)
{
glslopt_shader* shader = new (ctx->mem_ctx) glslopt_shader ();
PrintGlslMode printMode = kPrintGlslVertex;
switch (type) {
case kGlslOptShaderVertex:
shader->shader->Type = GL_VERTEX_SHADER;
shader->shader->Stage = MESA_SHADER_VERTEX;
printMode = kPrintGlslVertex;
break;
case kGlslOptShaderFragment:
shader->shader->Type = GL_FRAGMENT_SHADER;
shader->shader->Stage = MESA_SHADER_FRAGMENT;
printMode = kPrintGlslFragment;
break;
}
if (!shader->shader->Type)
{
shader->infoLog = ralloc_asprintf (shader, "Unknown shader type %d", (int)type);
shader->status = false;
return shader;
}
_mesa_glsl_parse_state* state = new (shader) _mesa_glsl_parse_state (&ctx->mesa_ctx, shader->shader->Stage, shader);
state->error = 0;
if (!(options & kGlslOptionSkipPreprocessor))
{
state->error = !!glcpp_preprocess (state, &shaderSource, &state->info_log, add_builtin_defines, state, &ctx->mesa_ctx);
if (state->error)
{
shader->status = !state->error;
shader->infoLog = state->info_log;
return shader;
}
}
_mesa_glsl_lexer_ctor (state, shaderSource);
_mesa_glsl_parse (state);
_mesa_glsl_lexer_dtor (state);
exec_list* ir = new (shader) exec_list();
shader->shader->ir = ir;
if (!state->error && !state->translation_unit.is_empty())
_mesa_ast_to_hir (ir, state);
// Un-optimized output
if (!state->error) {
validate_ir_tree(ir);
shader->rawOutput = _mesa_print_ir_glsl(ir, state, ralloc_strdup(shader, ""), printMode);
}
// Lower builtin functions prior to linking.
lower_builtins(ir);
// Link built-in functions
shader->shader->symbols = state->symbols;
struct gl_linked_shader* linked_shader = NULL;
if (!state->error && !ir->is_empty() && !(options & kGlslOptionNotFullShader))
{
linked_shader = link_intrastage_shaders(shader,
&ctx->mesa_ctx,
shader->whole_program,
shader->whole_program->Shaders,
shader->whole_program->NumShaders,
true);
if (!linked_shader)
{
shader->status = false;
shader->infoLog = shader->whole_program->data->InfoLog;
return shader;
}
ir = linked_shader->ir;
debug_print_ir ("==== After link ====", ir, state, shader);
}
// Do optimization post-link
if (!state->error && !ir->is_empty())
{
const bool linked = !(options & kGlslOptionNotFullShader);
do_optimization_passes(ir, linked, state, shader);
validate_ir_tree(ir);
}
// Final optimized output
if (!state->error)
{
shader->optimizedOutput = _mesa_print_ir_glsl(ir, state, ralloc_strdup(shader, ""), printMode);
}
shader->status = !state->error;
shader->infoLog = state->info_log;
find_shader_variables (shader, ir);
// FIXME: stats
// if (!state->error)
// calculate_shader_stats (ir, &shader->statsMath, &shader->statsTex, &shader->statsFlow);
ralloc_free (ir);
ralloc_free (state);
if (linked_shader)
ralloc_free(linked_shader);
return shader;
}
void glslopt_shader_delete (glslopt_shader* shader)
{
delete shader;
}
bool glslopt_get_status (glslopt_shader* shader)
{
return shader->status;
}
const char* glslopt_get_output (glslopt_shader* shader)
{
return shader->optimizedOutput;
}
const char* glslopt_get_raw_output (glslopt_shader* shader)
{
return shader->rawOutput;
}
const char* glslopt_get_log (glslopt_shader* shader)
{
return shader->infoLog;
}
int glslopt_shader_get_input_count (glslopt_shader* shader)
{
return shader->inputCount;
}
int glslopt_shader_get_uniform_count (glslopt_shader* shader)
{
return shader->uniformCount;
}
int glslopt_shader_get_uniform_total_size (glslopt_shader* shader)
{
return shader->uniformsSize;
}
int glslopt_shader_get_texture_count (glslopt_shader* shader)
{
return shader->textureCount;
}
void glslopt_shader_get_input_desc (glslopt_shader* shader, int index, const char** outName, glslopt_basic_type* outType, glslopt_precision* outPrec, int* outVecSize, int* outMatSize, int* outArraySize, int* outLocation)
{
const glslopt_shader_var& v = shader->inputs[index];
*outName = v.name;
*outType = v.type;
*outPrec = v.prec;
*outVecSize = v.vectorSize;
*outMatSize = v.matrixSize;
*outArraySize = v.arraySize;
*outLocation = v.location;
}
void glslopt_shader_get_uniform_desc (glslopt_shader* shader, int index, const char** outName, glslopt_basic_type* outType, glslopt_precision* outPrec, int* outVecSize, int* outMatSize, int* outArraySize, int* outLocation)
{
const glslopt_shader_var& v = shader->uniforms[index];
*outName = v.name;
*outType = v.type;
*outPrec = v.prec;
*outVecSize = v.vectorSize;
*outMatSize = v.matrixSize;
*outArraySize = v.arraySize;
*outLocation = v.location;
}
void glslopt_shader_get_texture_desc (glslopt_shader* shader, int index, const char** outName, glslopt_basic_type* outType, glslopt_precision* outPrec, int* outVecSize, int* outMatSize, int* outArraySize, int* outLocation)
{
const glslopt_shader_var& v = shader->textures[index];
*outName = v.name;
*outType = v.type;
*outPrec = v.prec;
*outVecSize = v.vectorSize;
*outMatSize = v.matrixSize;
*outArraySize = v.arraySize;
*outLocation = v.location;
}
void glslopt_shader_get_stats (glslopt_shader* shader, int* approxMath, int* approxTex, int* approxFlow)
{
*approxMath = shader->statsMath;
*approxTex = shader->statsTex;
*approxFlow = shader->statsFlow;
}