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Shader: Use a POD struct for registers.

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This commit is contained in:
bunnei
2015-08-15 16:51:32 -04:00
parent b39c053785
commit db97090cad
5 changed files with 43 additions and 40 deletions
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21
src/video_core/shader/shader.h
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@ -79,11 +79,14 @@ static_assert(sizeof(OutputVertex) == 32 * sizeof(float), "OutputVertex has inva
* here will make it easier for us to parallelize the shader processing later.
*/
struct UnitState {
// The registers are accessed by the shader JIT using SSE instructions, and are therefore
// required to be 16-byte aligned.
Math::Vec4<float24> MEMORY_ALIGNED16(input_registers[16]);
Math::Vec4<float24> MEMORY_ALIGNED16(output_registers[16]);
Math::Vec4<float24> MEMORY_ALIGNED16(temporary_registers[16]);
struct Registers {
// The registers are accessed by the shader JIT using SSE instructions, and are therefore
// required to be 16-byte aligned.
Math::Vec4<float24> MEMORY_ALIGNED16(input[16]);
Math::Vec4<float24> MEMORY_ALIGNED16(output[16]);
Math::Vec4<float24> MEMORY_ALIGNED16(temporary[16]);
} registers;
static_assert(std::is_pod<Registers>::value, "Structure is not POD");
u32 program_counter;
bool conditional_code[2];
@ -116,10 +119,10 @@ struct UnitState {
static int InputOffset(const SourceRegister& reg) {
switch (reg.GetRegisterType()) {
case RegisterType::Input:
return (int)offsetof(UnitState, input_registers) + reg.GetIndex()*sizeof(Math::Vec4<float24>);
return (int)offsetof(UnitState::Registers, input) + reg.GetIndex()*sizeof(Math::Vec4<float24>);
case RegisterType::Temporary:
return (int)offsetof(UnitState, temporary_registers) + reg.GetIndex()*sizeof(Math::Vec4<float24>);
return (int)offsetof(UnitState::Registers, temporary) + reg.GetIndex()*sizeof(Math::Vec4<float24>);
default:
UNREACHABLE();
@ -130,10 +133,10 @@ struct UnitState {
static int OutputOffset(const DestRegister& reg) {
switch (reg.GetRegisterType()) {
case RegisterType::Output:
return (int)offsetof(UnitState, output_registers) + reg.GetIndex()*sizeof(Math::Vec4<float24>);
return (int)offsetof(UnitState::Registers, output) + reg.GetIndex()*sizeof(Math::Vec4<float24>);
case RegisterType::Temporary:
return (int)offsetof(UnitState, temporary_registers) + reg.GetIndex()*sizeof(Math::Vec4<float24>);
return (int)offsetof(UnitState::Registers, temporary) + reg.GetIndex()*sizeof(Math::Vec4<float24>);
default:
UNREACHABLE();