From: Nicolai Hähnle Date: Mon, 31 Oct 2016 13:03:10 +0000 (+0100) Subject: glsl: fix lowering of UBO references of named blocks X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=37d646c1b3626ad54ed93a784824af7b5abe8a99;p=mesa.git glsl: fix lowering of UBO references of named blocks When a UBO reference has the form block_name.foo where block_name refers to a block where the first member has a non-zero offset, the base offset was incorrectly added to the reference. Fixes an assertion triggered in debug builds by GL45-CTS.enhanced_layouts.uniform_block_layout_qualifier_conflict. That test doesn't properly check for correct execution in this case, so I am also going to send out a piglit test. Cc: 13.0 Reviewed-by: Iago Toral Quiroga --- diff --git a/src/compiler/glsl/lower_ubo_reference.cpp b/src/compiler/glsl/lower_ubo_reference.cpp index 37134a9ac42..eafa1dd7525 100644 --- a/src/compiler/glsl/lower_ubo_reference.cpp +++ b/src/compiler/glsl/lower_ubo_reference.cpp @@ -107,7 +107,6 @@ public: struct gl_linked_shader *shader; bool clamp_block_indices; - struct gl_uniform_buffer_variable *ubo_var; const struct glsl_struct_field *struct_field; ir_variable *variable; ir_rvalue *uniform_block; @@ -308,8 +307,11 @@ lower_ubo_reference_visitor::setup_for_load_or_store(void *mem_ctx, this->uniform_block = index; } - this->ubo_var = var->is_interface_instance() - ? &blocks[i]->Uniforms[0] : &blocks[i]->Uniforms[var->data.location]; + if (var->is_interface_instance()) { + *const_offset = 0; + } else { + *const_offset = blocks[i]->Uniforms[var->data.location].Offset; + } break; } @@ -317,8 +319,6 @@ lower_ubo_reference_visitor::setup_for_load_or_store(void *mem_ctx, assert(this->uniform_block); - *const_offset = ubo_var->Offset; - this->struct_field = NULL; setup_buffer_access(mem_ctx, deref, offset, const_offset, row_major, matrix_columns, &this->struct_field, packing);