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[SPIR-V] Don't bother setting up vertex bindings if they aren't used.

This commit is contained in:
DrChat 2018-02-19 12:45:17 -06:00
parent be687f5f27
commit a3cf3a7694
1 changed files with 32 additions and 21 deletions
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53
src/xenia/gpu/spirv_shader_translator.cc
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@ -223,32 +223,34 @@ void SpirvShaderTranslator::StartTranslation() {
// Vertex inputs/outputs
// Inputs: 32 SSBOs on DS 2 binding 0
// Runtime array for vertex data
Id vtx_t = b.makeRuntimeArray(uint_type_);
b.addDecoration(vtx_t, spv::Decoration::DecorationArrayStride,
sizeof(uint32_t));
if (!vertex_bindings().empty()) {
// Runtime array for vertex data
Id vtx_t = b.makeRuntimeArray(uint_type_);
b.addDecoration(vtx_t, spv::Decoration::DecorationArrayStride,
sizeof(uint32_t));
Id vtx_s = b.makeStructType({vtx_t}, "vertex_type");
b.addDecoration(vtx_s, spv::Decoration::DecorationBufferBlock);
Id vtx_s = b.makeStructType({vtx_t}, "vertex_type");
b.addDecoration(vtx_s, spv::Decoration::DecorationBufferBlock);
// Describe the actual data
b.addMemberName(vtx_s, 0, "data");
b.addMemberDecoration(vtx_s, 0, spv::Decoration::DecorationOffset, 0);
// Describe the actual data
b.addMemberName(vtx_s, 0, "data");
b.addMemberDecoration(vtx_s, 0, spv::Decoration::DecorationOffset, 0);
// Create the vertex bindings variable.
Id vtx_a_t = b.makeArrayType(
vtx_s, b.makeUintConstant(uint32_t(vertex_bindings().size())), 0);
vtx_ = b.createVariable(spv::StorageClass::StorageClassUniform, vtx_a_t,
"vertex_bindings");
// Create the vertex bindings variable.
Id vtx_a_t = b.makeArrayType(
vtx_s, b.makeUintConstant(uint32_t(vertex_bindings().size())), 0);
vtx_ = b.createVariable(spv::StorageClass::StorageClassUniform, vtx_a_t,
"vertex_bindings");
// DS 2 binding 0
b.addDecoration(vtx_, spv::Decoration::DecorationDescriptorSet, 2);
b.addDecoration(vtx_, spv::Decoration::DecorationBinding, 0);
b.addDecoration(vtx_, spv::Decoration::DecorationNonWritable);
// DS 2 binding 0
b.addDecoration(vtx_, spv::Decoration::DecorationDescriptorSet, 2);
b.addDecoration(vtx_, spv::Decoration::DecorationBinding, 0);
b.addDecoration(vtx_, spv::Decoration::DecorationNonWritable);
// Set up the map from binding -> ssbo index
for (const auto& binding : vertex_bindings()) {
vtx_binding_map_[binding.fetch_constant] = binding.binding_index;
// Set up the map from binding -> ssbo index
for (const auto& binding : vertex_bindings()) {
vtx_binding_map_[binding.fetch_constant] = binding.binding_index;
}
}
// Outputs
@ -1462,10 +1464,14 @@ void SpirvShaderTranslator::ProcessVertexFetchInstruction(
spv::StorageClass::StorageClassUniform, data_ptr, {vertex_idx});
auto vertex_data = b.createLoad(vertex_ptr);
assert_true(instr.attributes.is_integer);
assert_true(instr.attributes.is_signed);
vertex = b.createUnaryOp(spv::Op::OpBitcast, float_type_, vertex_data);
} break;
case VertexFormat::k_32_32_FLOAT: {
assert_true(instr.attributes.is_integer);
assert_true(instr.attributes.is_signed);
spv::Id components[2] = {};
for (uint32_t i = 0; i < 2; i++) {
auto index = b.createBinOp(spv::Op::OpIAdd, int_type_, vertex_idx,
@ -1481,7 +1487,10 @@ void SpirvShaderTranslator::ProcessVertexFetchInstruction(
vertex = b.createCompositeConstruct(vec2_float_type_,
{components[0], components[1]});
} break;
case VertexFormat::k_32_32_32_FLOAT: {
assert_true(instr.attributes.is_integer);
assert_true(instr.attributes.is_signed);
spv::Id components[3] = {};
for (uint32_t i = 0; i < 3; i++) {
auto index = b.createBinOp(spv::Op::OpIAdd, int_type_, vertex_idx,
@ -1499,6 +1508,8 @@ void SpirvShaderTranslator::ProcessVertexFetchInstruction(
} break;
case VertexFormat::k_32_32_32_32_FLOAT: {
assert_true(instr.attributes.is_integer);
assert_true(instr.attributes.is_signed);
spv::Id components[4] = {};
for (uint32_t i = 0; i < 4; i++) {
auto index = b.createBinOp(spv::Op::OpIAdd, int_type_, vertex_idx,