From 67038c6ba27ea55d8d65557922bfe758a01101ef Mon Sep 17 00:00:00 2001 From: Kenneth Graunke Date: Thu, 18 Jul 2013 14:28:05 -0700 Subject: glsl: Add plumbing for handling uniform binding qualifiers. Sampler uniforms and uniform blocks do not have a var->constant_value. Instead, they have an integer var->binding value. This makes extending set_uniform_initializer() somewhat problematic: it assumes that there is an ir_constant * which represents the initializer, and that it's safe to dereference that without any NULL checks. Instead, this patch creates an analogous function for binding qualifiers, and calls one or the other as appropriate. Signed-off-by: Kenneth Graunke Reviewed-by: Paul Berry --- src/glsl/link_uniform_initializers.cpp | 26 +++++++++++++++++++++++--- 1 file changed, 23 insertions(+), 3 deletions(-) diff --git a/src/glsl/link_uniform_initializers.cpp b/src/glsl/link_uniform_initializers.cpp index f46f6e2db15..4efa1b44ae9 100644 --- a/src/glsl/link_uniform_initializers.cpp +++ b/src/glsl/link_uniform_initializers.cpp @@ -81,6 +81,21 @@ copy_constant_to_storage(union gl_constant_value *storage, } } +void +set_uniform_binding(void *mem_ctx, gl_shader_program *prog, + const char *name, const glsl_type *type, int binding) +{ + struct gl_uniform_storage *const storage = + get_storage(prog->UniformStorage, prog->NumUserUniformStorage, name); + + if (storage == NULL) { + assert(storage != NULL); + return; + } + + storage->initialized = true; +} + void set_uniform_initializer(void *mem_ctx, gl_shader_program *prog, const char *name, const glsl_type *type, @@ -173,14 +188,19 @@ link_set_uniform_initializers(struct gl_shader_program *prog) foreach_list(node, shader->ir) { ir_variable *const var = ((ir_instruction *) node)->as_variable(); - if (!var || var->mode != ir_var_uniform || !var->constant_value) + if (!var || var->mode != ir_var_uniform) continue; if (!mem_ctx) mem_ctx = ralloc_context(NULL); - linker::set_uniform_initializer(mem_ctx, prog, var->name, - var->type, var->constant_value); + if (var->explicit_binding) { + linker::set_uniform_binding(mem_ctx, prog, var->name, + var->type, var->binding); + } else if (var->constant_value) { + linker::set_uniform_initializer(mem_ctx, prog, var->name, + var->type, var->constant_value); + } } } -- cgit v1.2.3