Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 333 insertions, 0 deletions

diff --git a/gfx/angle/checkout/src/libANGLE/ProgramLinkedResources.h b/gfx/angle/checkout/src/libANGLE/ProgramLinkedResources.h
new file mode 100644
index 0000000000..0bb6cbb96f
--- /dev/null
+++ b/gfx/angle/checkout/src/libANGLE/ProgramLinkedResources.h
@@ -0,0 +1,333 @@
+//
+// Copyright 2017 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// ProgramLinkedResources.h: implements link-time checks for default block uniforms, and generates
+// uniform locations. Populates data structures related to uniforms so that they can be stored in
+// program state.
+
+#ifndef LIBANGLE_UNIFORMLINKER_H_
+#define LIBANGLE_UNIFORMLINKER_H_
+
+#include "angle_gl.h"
+#include "common/PackedEnums.h"
+#include "common/angleutils.h"
+#include "libANGLE/VaryingPacking.h"
+
+#include <functional>
+
+namespace sh
+{
+class BlockLayoutEncoder;
+struct BlockMemberInfo;
+struct InterfaceBlock;
+struct ShaderVariable;
+class BlockEncoderVisitor;
+class ShaderVariableVisitor;
+struct ShaderVariable;
+}  // namespace sh
+
+namespace gl
+{
+struct BufferVariable;
+struct Caps;
+class Context;
+class InfoLog;
+struct InterfaceBlock;
+enum class LinkMismatchError;
+struct LinkedUniform;
+class ProgramState;
+class ProgramPipelineState;
+class ProgramBindings;
+class ProgramAliasedBindings;
+class Shader;
+struct ShaderVariableBuffer;
+struct UnusedUniform;
+struct VariableLocation;
+
+using AtomicCounterBuffer = ShaderVariableBuffer;
+using ShaderUniform       = std::pair<ShaderType, const sh::ShaderVariable *>;
+
+class UniformLinker final : angle::NonCopyable
+{
+  public:
+    UniformLinker(const ShaderBitSet &activeShaderStages,
+                  const ShaderMap<std::vector<sh::ShaderVariable>> &shaderUniforms);
+    ~UniformLinker();
+
+    bool link(const Caps &caps,
+              InfoLog &infoLog,
+              const ProgramAliasedBindings &uniformLocationBindings);
+
+    void getResults(std::vector<LinkedUniform> *uniforms,
+                    std::vector<UnusedUniform> *unusedUniformsOutOrNull,
+                    std::vector<VariableLocation> *uniformLocationsOutOrNull);
+
+  private:
+    bool validateGraphicsUniforms(InfoLog &infoLog) const;
+    bool validateGraphicsUniformsPerShader(ShaderType shaderToLink,
+                                           bool extendLinkedUniforms,
+                                           std::map<std::string, ShaderUniform> *linkedUniforms,
+                                           InfoLog &infoLog) const;
+    bool flattenUniformsAndCheckCapsForShader(ShaderType shaderType,
+                                              const Caps &caps,
+                                              std::vector<LinkedUniform> &samplerUniforms,
+                                              std::vector<LinkedUniform> &imageUniforms,
+                                              std::vector<LinkedUniform> &atomicCounterUniforms,
+                                              std::vector<LinkedUniform> &inputAttachmentUniforms,
+                                              std::vector<UnusedUniform> &unusedUniforms,
+                                              InfoLog &infoLog);
+
+    bool flattenUniformsAndCheckCaps(const Caps &caps, InfoLog &infoLog);
+    bool checkMaxCombinedAtomicCounters(const Caps &caps, InfoLog &infoLog);
+
+    bool indexUniforms(InfoLog &infoLog, const ProgramAliasedBindings &uniformLocationBindings);
+    bool gatherUniformLocationsAndCheckConflicts(
+        InfoLog &infoLog,
+        const ProgramAliasedBindings &uniformLocationBindings,
+        std::set<GLuint> *ignoredLocations,
+        int *maxUniformLocation);
+    void pruneUnusedUniforms();
+
+    ShaderBitSet mActiveShaderStages;
+    const ShaderMap<std::vector<sh::ShaderVariable>> &mShaderUniforms;
+    std::vector<LinkedUniform> mUniforms;
+    std::vector<UnusedUniform> mUnusedUniforms;
+    std::vector<VariableLocation> mUniformLocations;
+};
+
+using GetBlockSizeFunc = std::function<
+    bool(const std::string &blockName, const std::string &blockMappedName, size_t *sizeOut)>;
+using GetBlockMemberInfoFunc = std::function<
+    bool(const std::string &name, const std::string &mappedName, sh::BlockMemberInfo *infoOut)>;
+
+// This class is intended to be used during the link step to store interface block information.
+// It is called by the Impl class during ProgramImpl::link so that it has access to the
+// real block size and layout.
+class InterfaceBlockLinker : angle::NonCopyable
+{
+  public:
+    virtual ~InterfaceBlockLinker();
+
+    // This is called once per shader stage. It stores a pointer to the block vector, so it's
+    // important that this class does not persist longer than the duration of Program::link.
+    void addShaderBlocks(ShaderType shader, const std::vector<sh::InterfaceBlock> *blocks);
+
+    // This is called once during a link operation, after all shader blocks are added.
+    void linkBlocks(const GetBlockSizeFunc &getBlockSize,
+                    const GetBlockMemberInfoFunc &getMemberInfo) const;
+
+    const std::vector<sh::InterfaceBlock> &getShaderBlocks(ShaderType shaderType) const
+    {
+        ASSERT(mShaderBlocks[shaderType]);
+        return *mShaderBlocks[shaderType];
+    }
+
+  protected:
+    InterfaceBlockLinker();
+    void init(std::vector<InterfaceBlock> *blocksOut,
+              std::vector<std::string> *unusedInterfaceBlocksOut);
+    void defineInterfaceBlock(const GetBlockSizeFunc &getBlockSize,
+                              const GetBlockMemberInfoFunc &getMemberInfo,
+                              const sh::InterfaceBlock &interfaceBlock,
+                              ShaderType shaderType) const;
+
+    virtual size_t getCurrentBlockMemberIndex() const = 0;
+
+    virtual sh::ShaderVariableVisitor *getVisitor(const GetBlockMemberInfoFunc &getMemberInfo,
+                                                  const std::string &namePrefix,
+                                                  const std::string &mappedNamePrefix,
+                                                  ShaderType shaderType,
+                                                  int blockIndex) const = 0;
+
+    ShaderMap<const std::vector<sh::InterfaceBlock> *> mShaderBlocks = {};
+
+    std::vector<InterfaceBlock> *mBlocksOut             = nullptr;
+    std::vector<std::string> *mUnusedInterfaceBlocksOut = nullptr;
+};
+
+class UniformBlockLinker final : public InterfaceBlockLinker
+{
+  public:
+    UniformBlockLinker();
+    ~UniformBlockLinker() override;
+
+    void init(std::vector<InterfaceBlock> *blocksOut,
+              std::vector<LinkedUniform> *uniformsOut,
+              std::vector<std::string> *unusedInterfaceBlocksOut);
+
+  private:
+    size_t getCurrentBlockMemberIndex() const override;
+
+    sh::ShaderVariableVisitor *getVisitor(const GetBlockMemberInfoFunc &getMemberInfo,
+                                          const std::string &namePrefix,
+                                          const std::string &mappedNamePrefix,
+                                          ShaderType shaderType,
+                                          int blockIndex) const override;
+
+    std::vector<LinkedUniform> *mUniformsOut = nullptr;
+};
+
+class ShaderStorageBlockLinker final : public InterfaceBlockLinker
+{
+  public:
+    ShaderStorageBlockLinker();
+    ~ShaderStorageBlockLinker() override;
+
+    void init(std::vector<InterfaceBlock> *blocksOut,
+              std::vector<BufferVariable> *bufferVariablesOut,
+              std::vector<std::string> *unusedInterfaceBlocksOut);
+
+  private:
+    size_t getCurrentBlockMemberIndex() const override;
+
+    sh::ShaderVariableVisitor *getVisitor(const GetBlockMemberInfoFunc &getMemberInfo,
+                                          const std::string &namePrefix,
+                                          const std::string &mappedNamePrefix,
+                                          ShaderType shaderType,
+                                          int blockIndex) const override;
+
+    std::vector<BufferVariable> *mBufferVariablesOut = nullptr;
+};
+
+class AtomicCounterBufferLinker final : angle::NonCopyable
+{
+  public:
+    AtomicCounterBufferLinker();
+    ~AtomicCounterBufferLinker();
+
+    void init(std::vector<AtomicCounterBuffer> *atomicCounterBuffersOut);
+    void link(const std::map<int, unsigned int> &sizeMap) const;
+
+  private:
+    std::vector<AtomicCounterBuffer> *mAtomicCounterBuffersOut = nullptr;
+};
+
+// The link operation is responsible for finishing the link of uniform and interface blocks.
+// This way it can filter out unreferenced resources and still have access to the info.
+// TODO(jmadill): Integrate uniform linking/filtering as well as interface blocks.
+struct UnusedUniform
+{
+    UnusedUniform(std::string name,
+                  bool isSampler,
+                  bool isImage,
+                  bool isAtomicCounter,
+                  bool isFragmentInOut)
+    {
+        this->name            = name;
+        this->isSampler       = isSampler;
+        this->isImage         = isImage;
+        this->isAtomicCounter = isAtomicCounter;
+        this->isFragmentInOut = isFragmentInOut;
+    }
+
+    std::string name;
+    bool isSampler;
+    bool isImage;
+    bool isAtomicCounter;
+    bool isFragmentInOut;
+};
+
+struct ProgramLinkedResources
+{
+    ProgramLinkedResources();
+    ~ProgramLinkedResources();
+
+    void init(std::vector<InterfaceBlock> *uniformBlocksOut,
+              std::vector<LinkedUniform> *uniformsOut,
+              std::vector<InterfaceBlock> *shaderStorageBlocksOut,
+              std::vector<BufferVariable> *bufferVariablesOut,
+              std::vector<AtomicCounterBuffer> *atomicCounterBuffersOut);
+
+    ProgramVaryingPacking varyingPacking;
+    UniformBlockLinker uniformBlockLinker;
+    ShaderStorageBlockLinker shaderStorageBlockLinker;
+    AtomicCounterBufferLinker atomicCounterBufferLinker;
+    std::vector<UnusedUniform> unusedUniforms;
+    std::vector<std::string> unusedInterfaceBlocks;
+};
+
+struct LinkingVariables final : private angle::NonCopyable
+{
+    LinkingVariables(const Context *context, const ProgramState &state);
+    LinkingVariables(const ProgramPipelineState &state);
+    ~LinkingVariables();
+
+    ShaderMap<std::vector<sh::ShaderVariable>> outputVaryings;
+    ShaderMap<std::vector<sh::ShaderVariable>> inputVaryings;
+    ShaderMap<std::vector<sh::ShaderVariable>> uniforms;
+    ShaderMap<std::vector<sh::InterfaceBlock>> uniformBlocks;
+    ShaderBitSet isShaderStageUsedBitset;
+};
+
+class CustomBlockLayoutEncoderFactory : angle::NonCopyable
+{
+  public:
+    virtual ~CustomBlockLayoutEncoderFactory() {}
+
+    virtual sh::BlockLayoutEncoder *makeEncoder() = 0;
+};
+
+// Used by the backends in Program*::linkResources to parse interface blocks and provide
+// information to ProgramLinkedResources' linkers.
+class ProgramLinkedResourcesLinker final : angle::NonCopyable
+{
+  public:
+    ProgramLinkedResourcesLinker(CustomBlockLayoutEncoderFactory *customEncoderFactory)
+        : mCustomEncoderFactory(customEncoderFactory)
+    {}
+
+    void linkResources(const Context *context,
+                       const ProgramState &programState,
+                       const ProgramLinkedResources &resources) const;
+
+  private:
+    void getAtomicCounterBufferSizeMap(const ProgramState &programState,
+                                       std::map<int, unsigned int> &sizeMapOut) const;
+
+    CustomBlockLayoutEncoderFactory *mCustomEncoderFactory;
+};
+
+using ShaderInterfaceBlock = std::pair<ShaderType, const sh::InterfaceBlock *>;
+using InterfaceBlockMap    = std::map<std::string, ShaderInterfaceBlock>;
+
+bool LinkValidateProgramGlobalNames(InfoLog &infoLog,
+                                    const ProgramExecutable &executable,
+                                    const LinkingVariables &linkingVariables);
+bool LinkValidateShaderInterfaceMatching(const std::vector<sh::ShaderVariable> &outputVaryings,
+                                         const std::vector<sh::ShaderVariable> &inputVaryings,
+                                         ShaderType frontShaderType,
+                                         ShaderType backShaderType,
+                                         int frontShaderVersion,
+                                         int backShaderVersion,
+                                         bool isSeparable,
+                                         InfoLog &infoLog);
+bool LinkValidateBuiltInVaryingsInvariant(const std::vector<sh::ShaderVariable> &vertexVaryings,
+                                          const std::vector<sh::ShaderVariable> &fragmentVaryings,
+                                          int vertexShaderVersion,
+                                          InfoLog &infoLog);
+bool LinkValidateBuiltInVaryings(const std::vector<sh::ShaderVariable> &inputVaryings,
+                                 const std::vector<sh::ShaderVariable> &outputVaryings,
+                                 ShaderType inputShaderType,
+                                 ShaderType outputShaderType,
+                                 int inputShaderVersion,
+                                 int outputShaderVersion,
+                                 InfoLog &infoLog);
+LinkMismatchError LinkValidateProgramVariables(const sh::ShaderVariable &variable1,
+                                               const sh::ShaderVariable &variable2,
+                                               bool validatePrecision,
+                                               bool treatVariable1AsNonArray,
+                                               bool treatVariable2AsNonArray,
+                                               std::string *mismatchedStructOrBlockMemberName);
+void AddProgramVariableParentPrefix(const std::string &parentName,
+                                    std::string *mismatchedFieldName);
+bool LinkValidateProgramInterfaceBlocks(const Context *context,
+                                        ShaderBitSet activeProgramStages,
+                                        const ProgramLinkedResources &resources,
+                                        InfoLog &infoLog,
+                                        GLuint *combinedShaderStorageBlocksCountOut);
+}  // namespace gl
+
+#endif  // LIBANGLE_UNIFORMLINKER_H_