INSANEMODE/yuzu-android
1
0
Fork 0
mirror of https://github.com/yuzu-emu/yuzu-android.git synced 2025-06-14 17:28:52 -05:00
Code Issues Packages Projects Releases Wiki Activity

shader_decode: Use BitfieldExtract instead of shift + and

Browse Source
This commit is contained in:
ReinUsesLisp
2018-12-26 02:58:47 -03:00
parent 52223313b1
commit 2faad9bf23
8 changed files with 37 additions and 48 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
src/video_core/shader/decode/video.cpp
View File

@ -88,21 +88,15 @@ u32 ShaderIR::DecodeVideo(BasicBlock& bb, u32 pc) {
Node ShaderIR::GetVideoOperand(Node op, bool is_chunk, bool is_signed,
Tegra::Shader::VideoType type, u64 byte_height) {
if (!is_chunk) {
const auto offset = static_cast<u32>(byte_height * 8);
const Node shift = SignedOperation(OperationCode::ILogicalShiftRight, is_signed, NO_PRECISE,
op, Immediate(offset));
return SignedOperation(OperationCode::IBitwiseAnd, is_signed, NO_PRECISE, shift,
Immediate(0xff));
return BitfieldExtract(op, static_cast<u32>(byte_height * 8), 8);
}
const Node zero = Immediate(0);
switch (type) {
case Tegra::Shader::VideoType::Size16_Low:
return SignedOperation(OperationCode::IBitwiseAnd, is_signed, NO_PRECISE, op,
Immediate(0xffff));
return BitfieldExtract(op, 0, 16);
case Tegra::Shader::VideoType::Size16_High:
return SignedOperation(OperationCode::ILogicalShiftRight, is_signed, NO_PRECISE, op,
Immediate(16));
return BitfieldExtract(op, 16, 16);
case Tegra::Shader::VideoType::Size32:
// TODO(Rodrigo): From my hardware tests it becomes a bit "mad" when this type is used
// (1 * 1 + 0 == 0x5b800000). Until a better explanation is found: abort.