From 69c8cec54b01ed522bf10baf20da70304bac701a Mon Sep 17 00:00:00 2001 From: marha Date: Mon, 28 Jan 2013 07:55:57 +0100 Subject: mesa mkfontscale pixman git update 28 jan 2013 mesa: 87592cff57feef29565150b9203e220b50623f30 mkfontscale: b3af8de8d25128f565c2ed2f7c63b6e4099eb84e pixman: 65fc1adb6545737058e938105ae948a3607c277c --- mesalib/src/glsl/lower_ubo_reference.cpp | 104 +++++++++++++++++++++++++++---- 1 file changed, 91 insertions(+), 13 deletions(-) (limited to 'mesalib/src/glsl/lower_ubo_reference.cpp') diff --git a/mesalib/src/glsl/lower_ubo_reference.cpp b/mesalib/src/glsl/lower_ubo_reference.cpp index e8d2c4742..026197df7 100644 --- a/mesalib/src/glsl/lower_ubo_reference.cpp +++ b/mesalib/src/glsl/lower_ubo_reference.cpp @@ -61,10 +61,58 @@ public: bool progress; }; -static inline unsigned int -align(unsigned int a, unsigned int align) +/** + * Determine the name of the interface block field + * + * This is the name of the specific member as it would appear in the + * \c gl_uniform_buffer_variable::Name field in the shader's + * \c UniformBlocks array. + */ +static const char * +interface_field_name(void *mem_ctx, char *base_name, ir_dereference *d) { - return (a + align - 1) / align * align; + ir_constant *previous_index = NULL; + + while (d != NULL) { + switch (d->ir_type) { + case ir_type_dereference_variable: { + ir_dereference_variable *v = (ir_dereference_variable *) d; + if (previous_index + && v->var->is_interface_instance() + && v->var->type->is_array()) + return ralloc_asprintf(mem_ctx, + "%s[%d]", + base_name, + previous_index->get_uint_component(0)); + else + return base_name; + + break; + } + + case ir_type_dereference_record: { + ir_dereference_record *r = (ir_dereference_record *) d; + + d = r->record->as_dereference(); + break; + } + + case ir_type_dereference_array: { + ir_dereference_array *a = (ir_dereference_array *) d; + + d = a->array->as_dereference(); + previous_index = a->array_index->as_constant(); + break; + } + + default: + assert(!"Should not get here."); + break; + } + } + + assert(!"Should not get here."); + return NULL; } void @@ -78,13 +126,30 @@ lower_ubo_reference_visitor::handle_rvalue(ir_rvalue **rvalue) return; ir_variable *var = deref->variable_referenced(); - if (!var || var->uniform_block == -1) + if (!var || !var->is_in_uniform_block()) return; mem_ctx = ralloc_parent(*rvalue); - uniform_block = var->uniform_block; - struct gl_uniform_block *block = &shader->UniformBlocks[uniform_block]; - this->ubo_var = &block->Uniforms[var->location]; + + const char *const field_name = + interface_field_name(mem_ctx, (char *) var->interface_type->name, deref); + + this->uniform_block = -1; + for (unsigned i = 0; i < shader->NumUniformBlocks; i++) { + if (strcmp(field_name, shader->UniformBlocks[i].Name) == 0) { + this->uniform_block = i; + + struct gl_uniform_block *block = &shader->UniformBlocks[i]; + + this->ubo_var = var->is_interface_instance() + ? &block->Uniforms[0] : &block->Uniforms[var->location]; + + break; + } + } + + assert(this->uniform_block != (unsigned) -1); + ir_rvalue *offset = new(mem_ctx) ir_constant(0u); unsigned const_offset = 0; bool row_major = ubo_var->RowMajor; @@ -111,9 +176,21 @@ lower_ubo_reference_visitor::handle_rvalue(ir_rvalue **rvalue) * vector) is handled below in emit_ubo_loads. */ array_stride = 4; + } else if (deref_array->type->is_interface()) { + /* We're processing an array dereference of an interface instance + * array. The thing being dereferenced *must* be a variable + * dereference because intefaces cannot be embedded an other + * types. In terms of calculating the offsets for the lowering + * pass, we don't care about the array index. All elements of an + * interface instance array will have the same offsets relative to + * the base of the block that backs them. + */ + assert(deref_array->array->as_dereference_variable()); + deref = deref_array->array->as_dereference(); + break; } else { array_stride = deref_array->type->std140_size(row_major); - array_stride = align(array_stride, 16); + array_stride = glsl_align(array_stride, 16); } ir_constant *const_index = deref_array->array_index->as_constant(); @@ -138,7 +215,7 @@ lower_ubo_reference_visitor::handle_rvalue(ir_rvalue **rvalue) const glsl_type *type = struct_type->fields.structure[i].type; unsigned field_align = type->std140_base_alignment(row_major); max_field_align = MAX2(field_align, max_field_align); - intra_struct_offset = align(intra_struct_offset, field_align); + intra_struct_offset = glsl_align(intra_struct_offset, field_align); if (strcmp(struct_type->fields.structure[i].name, deref_record->field) == 0) @@ -146,7 +223,7 @@ lower_ubo_reference_visitor::handle_rvalue(ir_rvalue **rvalue) intra_struct_offset += type->std140_size(row_major); } - const_offset = align(const_offset, max_field_align); + const_offset = glsl_align(const_offset, max_field_align); const_offset += intra_struct_offset; deref = deref_record->record->as_dereference(); @@ -217,8 +294,8 @@ lower_ubo_reference_visitor::emit_ubo_loads(ir_dereference *deref, field->name); field_offset = - align(field_offset, - field->type->std140_base_alignment(ubo_var->RowMajor)); + glsl_align(field_offset, + field->type->std140_base_alignment(ubo_var->RowMajor)); emit_ubo_loads(field_deref, base_offset, deref_offset + field_offset); @@ -229,7 +306,8 @@ lower_ubo_reference_visitor::emit_ubo_loads(ir_dereference *deref, if (deref->type->is_array()) { unsigned array_stride = - align(deref->type->fields.array->std140_size(ubo_var->RowMajor), 16); + glsl_align(deref->type->fields.array->std140_size(ubo_var->RowMajor), + 16); for (unsigned i = 0; i < deref->type->length; i++) { ir_constant *element = new(mem_ctx) ir_constant(i); -- cgit v1.2.3