mirror of
https://github.com/bkaradzic/bgfx.git
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127 lines
3.7 KiB
C++
127 lines
3.7 KiB
C++
// Copyright (c) 2017 Google Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "source/opt/feature_manager.h"
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#include <string>
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#include "source/table2.h"
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namespace spvtools {
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namespace opt {
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void FeatureManager::Analyze(Module* module) {
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AddExtensions(module);
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AddCapabilities(module);
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AddExtInstImportIds(module);
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}
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void FeatureManager::AddExtensions(Module* module) {
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for (auto ext : module->extensions()) {
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AddExtension(&ext);
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}
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}
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void FeatureManager::AddExtension(Instruction* ext) {
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assert((ext->opcode() == spv::Op::OpExtension ||
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ext->opcode() == spv::Op::OpConditionalExtensionINTEL) &&
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"Expecting an extension instruction.");
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const uint32_t name_i =
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ext->opcode() == spv::Op::OpConditionalExtensionINTEL ? 1u : 0u;
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const std::string name = ext->GetInOperand(name_i).AsString();
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Extension extension;
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if (GetExtensionFromString(name.c_str(), &extension)) {
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extensions_.insert(extension);
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}
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}
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void FeatureManager::RemoveExtension(Extension ext) {
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if (!extensions_.contains(ext)) return;
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extensions_.erase(ext);
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}
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void FeatureManager::AddCapability(spv::Capability cap) {
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if (capabilities_.contains(cap)) return;
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capabilities_.insert(cap);
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const spvtools::OperandDesc* desc = nullptr;
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if (SPV_SUCCESS == spvtools::LookupOperand(SPV_OPERAND_TYPE_CAPABILITY,
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uint32_t(cap), &desc)) {
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for (auto capability :
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CapabilitySet(static_cast<uint32_t>(desc->capabilities().size()),
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desc->capabilities().data())) {
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AddCapability(capability);
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}
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}
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}
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void FeatureManager::RemoveCapability(spv::Capability cap) {
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if (!capabilities_.contains(cap)) return;
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capabilities_.erase(cap);
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}
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void FeatureManager::AddCapabilities(Module* module) {
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for (Instruction& inst : module->capabilities()) {
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const uint32_t i_cap =
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inst.opcode() == spv::Op::OpConditionalCapabilityINTEL ? 1 : 0;
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AddCapability(
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static_cast<spv::Capability>(inst.GetSingleWordInOperand(i_cap)));
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}
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}
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void FeatureManager::AddExtInstImportIds(Module* module) {
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extinst_importid_GLSLstd450_ = module->GetExtInstImportId("GLSL.std.450");
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extinst_importid_OpenCL100DebugInfo_ =
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module->GetExtInstImportId("OpenCL.DebugInfo.100");
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extinst_importid_Shader100DebugInfo_ =
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module->GetExtInstImportId("NonSemantic.Shader.DebugInfo.100");
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}
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bool operator==(const FeatureManager& a, const FeatureManager& b) {
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// We check that the addresses of the grammars are the same because they
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// are large objects, and this is faster. It can be changed if needed as a
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// later time.
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if (&a.grammar_ != &b.grammar_) {
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return false;
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}
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if (a.capabilities_ != b.capabilities_) {
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return false;
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}
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if (a.extensions_ != b.extensions_) {
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return false;
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}
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if (a.extinst_importid_GLSLstd450_ != b.extinst_importid_GLSLstd450_) {
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return false;
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}
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if (a.extinst_importid_OpenCL100DebugInfo_ !=
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b.extinst_importid_OpenCL100DebugInfo_) {
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return false;
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}
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if (a.extinst_importid_Shader100DebugInfo_ !=
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b.extinst_importid_Shader100DebugInfo_) {
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return false;
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}
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return true;
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}
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} // namespace opt
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} // namespace spvtools
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