diff options
Diffstat (limited to 'src/video_core/engines')
| -rw-r--r-- | src/video_core/engines/shader_bytecode.h | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/src/video_core/engines/shader_bytecode.h b/src/video_core/engines/shader_bytecode.h index fd4e0746e..da64430e9 100644 --- a/src/video_core/engines/shader_bytecode.h +++ b/src/video_core/engines/shader_bytecode.h @@ -270,8 +270,22 @@ union Instruction { } tex; union { - // TODO(bunnei): This is just a guess, needs to be verified - BitField<52, 1, u64> enable_g_component; + BitField<50, 3, u64> component_mask_selector; + BitField<28, 8, Register> gpr28; + + bool HasTwoDestinations() const { + return gpr28.Value() != Register::ZeroIndex; + } + + bool IsComponentEnabled(size_t component) const { + static constexpr std::array<size_t, 5> one_dest_mask{0x1, 0x2, 0x4, 0x8, 0x3}; + static constexpr std::array<size_t, 5> two_dest_mask{0x7, 0xb, 0xd, 0xe, 0xf}; + const auto& mask{HasTwoDestinations() ? two_dest_mask : one_dest_mask}; + + ASSERT(component_mask_selector < mask.size()); + + return ((1 << component) & mask[component_mask_selector]) != 0; + } } texs; BitField<61, 1, u64> is_b_imm; |