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[GPU] Gather used memexport constants in shader translator

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Triang3l
2018-12-20 10:14:18 +03:00
parent dc0b468ea8
commit adc0eb87f6
3 changed files with 32 additions and 2 deletions
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17
src/xenia/gpu/shader_translator.cc
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@@ -63,6 +63,7 @@ void ShaderTranslator::Reset() {
writes_color_targets_[i] = false;
}
writes_depth_ = false;
memexport_stream_constants_.clear();
}
bool ShaderTranslator::GatherAllBindingInformation(Shader* shader) {
@@ -174,6 +175,10 @@ bool ShaderTranslator::TranslateInternal(Shader* shader) {
for (size_t i = 0; i < xe::countof(writes_color_targets_); ++i) {
shader->writes_color_targets_[i] = writes_color_targets_[i];
}
shader->memexport_stream_constants_.clear();
for (uint32_t memexport_stream_constant : memexport_stream_constants_) {
shader->memexport_stream_constants_.push_back(memexport_stream_constant);
}
shader->is_valid_ = true;
shader->is_translated_ = true;
@@ -282,6 +287,18 @@ void ShaderTranslator::GatherInstructionInformation(
writes_depth_ = true;
}
}
// Store used memexport constants because CPU code needs addresses
// and sizes. eA is (hopefully) always written to using:
// mad eA, r#, const0100, c#
// (though there are some exceptions, shaders in Halo 3 for some
// reason set eA to zeros, but the swizzle of the constant is not
// .xyzw in this case, and they don't write to eM#).
if (op.vector_dest() == 32 &&
op.vector_opcode() == AluVectorOpcode::kMad &&
op.vector_write_mask() == 0b1111 && !op.src_is_temp(3) &&
op.src_swizzle(3) == 0) {
memexport_stream_constants_.insert(op.src_reg(3));
}
} else {
if (op.is_vector_dest_relative()) {
uses_register_dynamic_addressing_ = true;