ResourceManager.h

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Author : Jamie Madill
Date : 2018-10-10 16:13:03
Hash : 956ab4d9
Message : Optimize several functions for the Program perf test. This gives the same or slightly better performance in the ProgramDraw perf test. Also only set the Program object as dirty when there are dirty bits set in the Program itself. Bug: angleproject:2877 Change-Id: I07b428b40d3e3c24e0a42c970524756b6dc3a30e Reviewed-on: https://chromium-review.googlesource.com/c/1271475 Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>
src/libANGLE/ResourceManager.h
//
// Copyright (c) 2002-2016 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.
//

// ResourceManager.h : Defines the ResourceManager classes, which handle allocation and lifetime of
// GL objects.

#ifndef LIBANGLE_RESOURCEMANAGER_H_
#define LIBANGLE_RESOURCEMANAGER_H_

#include "angle_gl.h"
#include "common/angleutils.h"
#include "libANGLE/Error.h"
#include "libANGLE/HandleAllocator.h"
#include "libANGLE/HandleRangeAllocator.h"
#include "libANGLE/ResourceMap.h"

namespace rx
{
class GLImplFactory;
}

namespace gl
{
class Buffer;
struct Caps;
class Context;
class Sync;
class Framebuffer;
struct Limitations;
class Path;
class Program;
class ProgramPipeline;
class Renderbuffer;
class Sampler;
class Shader;
class Texture;

template <typename HandleAllocatorType>
class ResourceManagerBase : angle::NonCopyable
{
  public:
    ResourceManagerBase();

    void addRef();
    void release(const Context *context);

  protected:
    virtual void reset(const Context *context) = 0;
    virtual ~ResourceManagerBase() {}

    HandleAllocatorType mHandleAllocator;

  private:
    size_t mRefCount;
};

template <typename ResourceType, typename HandleAllocatorType, typename ImplT>
class TypedResourceManager : public ResourceManagerBase<HandleAllocatorType>
{
  public:
    TypedResourceManager() {}

    void deleteObject(const Context *context, GLuint handle);
    ANGLE_INLINE bool isHandleGenerated(GLuint handle) const
    {
        // Zero is always assumed to have been generated implicitly.
        return handle == 0 || mObjectMap.contains(handle);
    }

  protected:
    ~TypedResourceManager() override;

    // Inlined in the header for performance.
    template <typename... ArgTypes>
    ANGLE_INLINE ResourceType *checkObjectAllocation(rx::GLImplFactory *factory,
                                                     GLuint handle,
                                                     ArgTypes... args)
    {
        ResourceType *value = mObjectMap.query(handle);
        if (value)
        {
            return value;
        }

        if (handle == 0)
        {
            return nullptr;
        }

        return checkObjectAllocationImpl(factory, handle, args...);
    }

    void reset(const Context *context) override;

    ResourceMap<ResourceType> mObjectMap;

  private:
    template <typename... ArgTypes>
    ResourceType *checkObjectAllocationImpl(rx::GLImplFactory *factory,
                                            GLuint handle,
                                            ArgTypes... args)
    {
        ResourceType *object = ImplT::AllocateNewObject(factory, handle, args...);

        if (!mObjectMap.contains(handle))
        {
            this->mHandleAllocator.reserve(handle);
        }
        mObjectMap.assign(handle, object);

        return object;
    }
};

class BufferManager : public TypedResourceManager<Buffer, HandleAllocator, BufferManager>
{
  public:
    GLuint createBuffer();
    Buffer *getBuffer(GLuint handle) const;

    ANGLE_INLINE Buffer *checkBufferAllocation(rx::GLImplFactory *factory, GLuint handle)
    {
        return checkObjectAllocation(factory, handle);
    }

    // TODO(jmadill): Investigate design which doesn't expose these methods publicly.
    static Buffer *AllocateNewObject(rx::GLImplFactory *factory, GLuint handle);
    static void DeleteObject(const Context *context, Buffer *buffer);

  protected:
    ~BufferManager() override {}
};

class ShaderProgramManager : public ResourceManagerBase<HandleAllocator>
{
  public:
    ShaderProgramManager();

    GLuint createShader(rx::GLImplFactory *factory,
                        const Limitations &rendererLimitations,
                        ShaderType type);
    void deleteShader(const Context *context, GLuint shader);
    Shader *getShader(GLuint handle) const;

    GLuint createProgram(rx::GLImplFactory *factory);
    void deleteProgram(const Context *context, GLuint program);

    ANGLE_INLINE Program *getProgram(GLuint handle) const { return mPrograms.query(handle); }

  protected:
    ~ShaderProgramManager() override;

  private:
    template <typename ObjectType>
    void deleteObject(const Context *context, ResourceMap<ObjectType> *objectMap, GLuint id);

    void reset(const Context *context) override;

    ResourceMap<Shader> mShaders;
    ResourceMap<Program> mPrograms;
};

class TextureManager : public TypedResourceManager<Texture, HandleAllocator, TextureManager>
{
  public:
    GLuint createTexture();
    ANGLE_INLINE Texture *getTexture(GLuint handle) const
    {
        ASSERT(mObjectMap.query(0) == nullptr);
        return mObjectMap.query(handle);
    }

    void signalAllTexturesDirty(const Context *context) const;

    ANGLE_INLINE Texture *checkTextureAllocation(rx::GLImplFactory *factory,
                                                 GLuint handle,
                                                 TextureType type)
    {
        return checkObjectAllocation(factory, handle, type);
    }

    static Texture *AllocateNewObject(rx::GLImplFactory *factory, GLuint handle, TextureType type);
    static void DeleteObject(const Context *context, Texture *texture);

    void enableHandleAllocatorLogging();

  protected:
    ~TextureManager() override {}
};

class RenderbufferManager
    : public TypedResourceManager<Renderbuffer, HandleAllocator, RenderbufferManager>
{
  public:
    GLuint createRenderbuffer();
    Renderbuffer *getRenderbuffer(GLuint handle) const;

    Renderbuffer *checkRenderbufferAllocation(rx::GLImplFactory *factory, GLuint handle)
    {
        return checkObjectAllocation(factory, handle);
    }

    static Renderbuffer *AllocateNewObject(rx::GLImplFactory *factory, GLuint handle);
    static void DeleteObject(const Context *context, Renderbuffer *renderbuffer);

  protected:
    ~RenderbufferManager() override {}
};

class SamplerManager : public TypedResourceManager<Sampler, HandleAllocator, SamplerManager>
{
  public:
    GLuint createSampler();
    Sampler *getSampler(GLuint handle) const;
    bool isSampler(GLuint sampler) const;

    Sampler *checkSamplerAllocation(rx::GLImplFactory *factory, GLuint handle)
    {
        return checkObjectAllocation(factory, handle);
    }

    static Sampler *AllocateNewObject(rx::GLImplFactory *factory, GLuint handle);
    static void DeleteObject(const Context *context, Sampler *sampler);

  protected:
    ~SamplerManager() override {}
};

class SyncManager : public TypedResourceManager<Sync, HandleAllocator, SyncManager>
{
  public:
    GLuint createSync(rx::GLImplFactory *factory);
    Sync *getSync(GLuint handle) const;

    static void DeleteObject(const Context *context, Sync *sync);

  protected:
    ~SyncManager() override {}
};

class PathManager : public ResourceManagerBase<HandleRangeAllocator>
{
  public:
    PathManager();

    Error createPaths(rx::GLImplFactory *factory, GLsizei range, GLuint *numCreated);
    void deletePaths(GLuint first, GLsizei range);
    Path *getPath(GLuint handle) const;
    bool hasPath(GLuint handle) const;

  protected:
    ~PathManager() override;
    void reset(const Context *context) override;

  private:
    ResourceMap<Path> mPaths;
};

class FramebufferManager
    : public TypedResourceManager<Framebuffer, HandleAllocator, FramebufferManager>
{
  public:
    GLuint createFramebuffer();
    Framebuffer *getFramebuffer(GLuint handle) const;
    void setDefaultFramebuffer(Framebuffer *framebuffer);

    void invalidateFramebufferComplenessCache(const Context *context) const;

    Framebuffer *checkFramebufferAllocation(rx::GLImplFactory *factory,
                                            const Caps &caps,
                                            GLuint handle)
    {
        return checkObjectAllocation<const Caps &>(factory, handle, caps);
    }

    static Framebuffer *AllocateNewObject(rx::GLImplFactory *factory,
                                          GLuint handle,
                                          const Caps &caps);
    static void DeleteObject(const Context *context, Framebuffer *framebuffer);

  protected:
    ~FramebufferManager() override {}
};

class ProgramPipelineManager
    : public TypedResourceManager<ProgramPipeline, HandleAllocator, ProgramPipelineManager>
{
  public:
    GLuint createProgramPipeline();
    ProgramPipeline *getProgramPipeline(GLuint handle) const;

    ProgramPipeline *checkProgramPipelineAllocation(rx::GLImplFactory *factory, GLuint handle)
    {
        return checkObjectAllocation(factory, handle);
    }

    static ProgramPipeline *AllocateNewObject(rx::GLImplFactory *factory, GLuint handle);
    static void DeleteObject(const Context *context, ProgramPipeline *pipeline);

  protected:
    ~ProgramPipelineManager() override {}
};

}  // namespace gl

#endif // LIBANGLE_RESOURCEMANAGER_H_
kc3-lang/angle/src/libANGLE/ResourceManager.h

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kc3-lang/angle /src/libANGLE/ResourceManager.h
