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SPIR-V: Rudimentary support of tfetch offsets, fix scalar operand loads

This commit is contained in:
Dr. Chat 2016-07-24 10:16:44 -05:00
parent 99d2b2fb55
commit 9e646085f0
1 changed files with 21 additions and 27 deletions
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48
src/xenia/gpu/spirv_shader_translator.cc
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@ -840,6 +840,10 @@ void SpirvShaderTranslator::ProcessAllocInstruction(
} break;
// Also PS Colors
case AllocType::kVsInterpolators: {
// Already included, nothing to do here.
} break;
case AllocType::kMemory: {
assert_always();
} break;
default:
break;
@ -1026,6 +1030,20 @@ void SpirvShaderTranslator::ProcessTextureFetchInstruction(
tex_[dim_idx], std::vector<Id>({texture_index}));
auto texture = b.createLoad(texture_ptr);
if (instr.dimension == TextureDimension::k1D &&
(instr.attributes.offset_x)) {
auto offset = b.makeFloatConstant(instr.attributes.offset_x + 0.5f);
src = b.createBinOp(spv::Op::OpFAdd, float_type_, src, offset);
} else if (instr.dimension == TextureDimension::k2D &&
(instr.attributes.offset_x || instr.attributes.offset_y)) {
auto offset = b.makeCompositeConstant(
vec2_float_type_,
std::vector<Id>(
{b.makeFloatConstant(instr.attributes.offset_x + 0.5f),
b.makeFloatConstant(instr.attributes.offset_y + 0.5f)}));
src = b.createBinOp(spv::Op::OpFAdd, vec2_float_type_, src, offset);
}
spv::Builder::TextureParameters params = {0};
params.coords = src;
params.sampler = texture;
@ -1723,32 +1741,8 @@ void SpirvShaderTranslator::ProcessScalarAluInstruction(
auto src = LoadFromOperand(instr.operands[i]);
// Pull components out of the vector operands and use them as sources.
for (size_t j = 0; j < instr.operands[i].component_count; j++) {
uint32_t component = 0;
switch (instr.operands[i].components[j]) {
case SwizzleSource::kX:
component = 0;
break;
case SwizzleSource::kY:
component = 1;
break;
case SwizzleSource::kZ:
component = 2;
break;
case SwizzleSource::kW:
component = 3;
break;
case SwizzleSource::k0:
case SwizzleSource::k1:
// Don't believe this can happen.
assert_always();
break;
default:
assert_always();
break;
}
sources[x++] = b.createCompositeExtract(src, float_type_, component);
for (int j = 0; j < instr.operands[i].component_count; j++) {
sources[x++] = b.createCompositeExtract(src, float_type_, j);
}
}
@ -2424,7 +2418,7 @@ void SpirvShaderTranslator::StoreToResult(Id source_value_id,
}
if (!storage_pointer) {
// assert_always();
assert_always();
return;
}