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[SPIR-V] Fix invalid 1D texture offsets

This commit is contained in:
DrChat 2017-12-22 22:23:43 -06:00
parent fb89973266
commit 366e8b1b6a
1 changed files with 11 additions and 8 deletions
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19
src/xenia/gpu/spirv_shader_translator.cc
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@ -905,11 +905,9 @@ void SpirvShaderTranslator::ProcessLoopStartInstruction(
// loop_count_ = uvec4(loop_count_value, loop_count_.xyz);
auto loop_count = b.createLoad(loop_count_);
loop_count =
b.createRvalueSwizzle(spv::NoPrecision, vec4_uint_type_, loop_count,
std::vector<uint32_t>({0, 0, 1, 2}));
loop_count =
b.createCompositeInsert(loop_count_value, loop_count, vec4_uint_type_, 0);
loop_count = b.createRvalueSwizzle(spv::NoPrecision, vec4_uint_type_, loop_count,
std::vector<uint32_t>({0, 0, 1, 2}));
loop_count = b.createCompositeInsert(loop_count_value, loop_count, vec4_uint_type_, 0);
b.createStore(loop_count, loop_count_);
// aL = aL.xxyz;
@ -1461,9 +1459,14 @@ void SpirvShaderTranslator::ProcessTextureFetchInstruction(
if (instr.dimension == TextureDimension::k1D) {
if (instr.attributes.offset_x) {
auto offset = b.makeFloatConstant(instr.attributes.offset_x + 0.5f);
offset = b.createBinOp(spv::Op::OpFDiv, float_type_, offset, size);
src = b.createBinOp(spv::Op::OpFAdd, float_type_, src, offset);
auto offset = b.makeCompositeConstant(
vec2_float_type_,
std::vector<Id>(
{b.makeFloatConstant(instr.attributes.offset_x + 0.5f),
b.makeFloatConstant(0.f)}));
offset =
b.createBinOp(spv::Op::OpFDiv, vec2_float_type_, offset, size);
src = b.createBinOp(spv::Op::OpFAdd, vec2_float_type_, src, offset);
}
// https://msdn.microsoft.com/en-us/library/windows/desktop/bb944006.aspx
// "Because the runtime does not support 1D textures, the compiler will