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Merge pull request #3288 from ReinUsesLisp/uncurse-aoffi

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shader_ir/texture: Simplify AOFFI code
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bunnei 2020-01-13 23:52:12 -05:00 committed by GitHub
parent 6985eea519 13021b534c
commit 15788ffcde
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 6 additions and 10 deletions
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16
src/video_core/shader/decode/texture.cpp
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@ -794,14 +794,10 @@ std::tuple<std::size_t, std::size_t> ShaderIR::ValidateAndGetCoordinateElement(
std::vector<Node> ShaderIR::GetAoffiCoordinates(Node aoffi_reg, std::size_t coord_count,
bool is_tld4) {
const auto [coord_offsets, size, wrap_value,
diff_value] = [is_tld4]() -> std::tuple<std::array<u32, 3>, u32, s32, s32> {
if (is_tld4) {
return {{0, 8, 16}, 6, 32, 64};
} else {
return {{0, 4, 8}, 4, 8, 16};
}
}();
const std::array coord_offsets = is_tld4 ? std::array{0U, 8U, 16U} : std::array{0U, 4U, 8U};
const u32 size = is_tld4 ? 6 : 4;
const s32 wrap_value = is_tld4 ? 32 : 8;
const s32 diff_value = is_tld4 ? 64 : 16;
const u32 mask = (1U << size) - 1;
std::vector<Node> aoffi;
@ -814,7 +810,7 @@ std::vector<Node> ShaderIR::GetAoffiCoordinates(Node aoffi_reg, std::size_t coor
LOG_WARNING(HW_GPU,
"AOFFI constant folding failed, some hardware might have graphical issues");
for (std::size_t coord = 0; coord < coord_count; ++coord) {
const Node value = BitfieldExtract(aoffi_reg, coord_offsets.at(coord), size);
const Node value = BitfieldExtract(aoffi_reg, coord_offsets[coord], size);
const Node condition =
Operation(OperationCode::LogicalIGreaterEqual, value, Immediate(wrap_value));
const Node negative = Operation(OperationCode::IAdd, value, Immediate(-diff_value));
@ -824,7 +820,7 @@ std::vector<Node> ShaderIR::GetAoffiCoordinates(Node aoffi_reg, std::size_t coor
}
for (std::size_t coord = 0; coord < coord_count; ++coord) {
s32 value = (*aoffi_immediate >> coord_offsets.at(coord)) & mask;
s32 value = (*aoffi_immediate >> coord_offsets[coord]) & mask;
if (value >= wrap_value) {
value -= diff_value;
}