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[Vulkan] Rectangle and quad list geometry shader generation

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Triang3l
2022-05-10 21:48:18 +03:00
parent b9256fcdbd
commit 73d574a046
8 changed files with 846 additions and 608 deletions
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56
src/xenia/gpu/spirv_shader_translator.cc
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@@ -932,64 +932,34 @@ void SpirvShaderTranslator::StartVertexOrTessEvalShaderBeforeMain() {
}
// Create the Xenia-specific outputs.
// TODO(Triang3l): Change to an interpolator array.
for (uint32_t i = 0; i < xenos::kMaxInterpolators; ++i) {
spv::Id interpolator = builder_->createVariable(
spv::NoPrecision, spv::StorageClassOutput, type_float4_,
(kInterpolatorNamePrefix + std::to_string(i)).c_str());
input_output_interpolators_[i] = interpolator;
builder_->addDecoration(interpolator, spv::DecorationLocation, int(i));
builder_->addDecoration(interpolator, spv::DecorationInvariant);
main_interface_.push_back(interpolator);
}
// Create the entire GLSL 4.50 gl_PerVertex output similar to what glslang
// does. Members (like gl_PointSize) don't need to be used, and also
// ClipDistance and CullDistance may exist even if the device doesn't support
// them, as long as the capabilities aren't enabled, and nothing is stored to
// them.
if (features_.clip_distance) {
builder_->addCapability(spv::CapabilityClipDistance);
}
if (features_.cull_distance) {
builder_->addCapability(spv::CapabilityCullDistance);
}
// Create the gl_PerVertex output for used system outputs.
std::vector<spv::Id> struct_per_vertex_members;
struct_per_vertex_members.reserve(kOutputPerVertexMemberCount);
struct_per_vertex_members.push_back(type_float4_);
struct_per_vertex_members.push_back(type_float_);
// TODO(Triang3l): Specialization constant for ucp_cull_only_ena, for 6 + 1
// or 1 + 7 array sizes.
struct_per_vertex_members.push_back(builder_->makeArrayType(
type_float_, builder_->makeUintConstant(features_.clip_distance ? 6 : 1),
0));
struct_per_vertex_members.push_back(
builder_->makeArrayType(type_float_, builder_->makeUintConstant(1), 0));
spv::Id type_struct_per_vertex =
builder_->makeStructType(struct_per_vertex_members, "gl_PerVertex");
builder_->addMemberName(type_struct_per_vertex,
kOutputPerVertexMemberPosition, "gl_Position");
builder_->addMemberDecoration(type_struct_per_vertex,
kOutputPerVertexMemberPosition,
spv::DecorationInvariant);
builder_->addMemberDecoration(type_struct_per_vertex,
kOutputPerVertexMemberPosition,
spv::DecorationBuiltIn, spv::BuiltInPosition);
builder_->addMemberDecoration(type_struct_per_vertex,
kOutputPerVertexMemberPointSize,
spv::DecorationBuiltIn, spv::BuiltInPointSize);
builder_->addMemberDecoration(type_struct_per_vertex,
kOutputPerVertexMemberClipDistance,
spv::DecorationInvariant);
builder_->addMemberDecoration(
type_struct_per_vertex, kOutputPerVertexMemberClipDistance,
spv::DecorationBuiltIn, spv::BuiltInClipDistance);
builder_->addMemberDecoration(type_struct_per_vertex,
kOutputPerVertexMemberCullDistance,
spv::DecorationInvariant);
builder_->addMemberDecoration(
type_struct_per_vertex, kOutputPerVertexMemberCullDistance,
spv::DecorationBuiltIn, spv::BuiltInCullDistance);
builder_->addDecoration(type_struct_per_vertex, spv::DecorationBlock);
output_per_vertex_ =
builder_->createVariable(spv::NoPrecision, spv::StorageClassOutput,
type_struct_per_vertex, "xe_out_gl_PerVertex");
output_per_vertex_ = builder_->createVariable(
spv::NoPrecision, spv::StorageClassOutput, type_struct_per_vertex, "");
main_interface_.push_back(output_per_vertex_);
}
@@ -1178,18 +1148,6 @@ void SpirvShaderTranslator::CompleteVertexOrTessEvalShaderInMain() {
std::move(composite_construct_op));
}
builder_->createStore(position, position_ptr);
// Write 1 to point size (using a geometry shader or another kind of fallback
// to expand point sprites - point size support is not guaranteed, and the
// size would also be limited, and can't be controlled independently along two
// axes).
id_vector_temp_.clear();
id_vector_temp_.push_back(
builder_->makeIntConstant(kOutputPerVertexMemberPointSize));
builder_->createStore(
const_float_1_,
builder_->createAccessChain(spv::StorageClassOutput, output_per_vertex_,
id_vector_temp_));
}
void SpirvShaderTranslator::StartFragmentShaderBeforeMain() {