1 files changed, 562 insertions, 0 deletions
diff --git a/gfx/angle/src/libANGLE/ResourceManager.cpp b/gfx/angle/src/libANGLE/ResourceManager.cpp
new file mode 100755
index 000000000..cfb965d92
--- /dev/null
+++ b/gfx/angle/src/libANGLE/ResourceManager.cpp
@@ -0,0 +1,562 @@
+//
+// Copyright (c) 2002-2013 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.cpp: Implements the gl::ResourceManager class, which tracks and
+// retrieves objects which may be shared by multiple Contexts.
+
+#include "libANGLE/ResourceManager.h"
+
+#include "libANGLE/Buffer.h"
+#include "libANGLE/Fence.h"
+#include "libANGLE/Path.h"
+#include "libANGLE/Program.h"
+#include "libANGLE/Renderbuffer.h"
+#include "libANGLE/Sampler.h"
+#include "libANGLE/Shader.h"
+#include "libANGLE/Texture.h"
+#include "libANGLE/renderer/GLImplFactory.h"
+
+namespace gl
+{
+ResourceManager::ResourceManager() : mRefCount(1)
+{
+}
+
+ResourceManager::~ResourceManager()
+{
+    while (!mBufferMap.empty())
+    {
+        deleteBuffer(mBufferMap.begin()->first);
+    }
+
+    while (!mProgramMap.empty())
+    {
+        deleteProgram(mProgramMap.begin()->first);
+    }
+
+    while (!mShaderMap.empty())
+    {
+        deleteShader(mShaderMap.begin()->first);
+    }
+
+    while (!mRenderbufferMap.empty())
+    {
+        deleteRenderbuffer(mRenderbufferMap.begin()->first);
+    }
+
+    while (!mTextureMap.empty())
+    {
+        deleteTexture(mTextureMap.begin()->first);
+    }
+
+    while (!mSamplerMap.empty())
+    {
+        deleteSampler(mSamplerMap.begin()->first);
+    }
+
+    while (!mFenceSyncMap.empty())
+    {
+        deleteFenceSync(mFenceSyncMap.begin()->first);
+    }
+
+    for (auto it = mPathMap.begin(); it != mPathMap.end(); ++it)
+    {
+        const auto *p = it->second;
+        delete p;
+    }
+}
+
+void ResourceManager::addRef()
+{
+    mRefCount++;
+}
+
+void ResourceManager::release()
+{
+    if (--mRefCount == 0)
+    {
+        delete this;
+    }
+}
+
+// Returns an unused buffer name
+GLuint ResourceManager::createBuffer()
+{
+    GLuint handle = mBufferHandleAllocator.allocate();
+
+    mBufferMap[handle] = nullptr;
+
+    return handle;
+}
+
+// Returns an unused shader/program name
+GLuint ResourceManager::createShader(rx::GLImplFactory *factory,
+                                     const gl::Limitations &rendererLimitations,
+                                     GLenum type)
+{
+    ASSERT(type == GL_VERTEX_SHADER || type == GL_FRAGMENT_SHADER || type == GL_COMPUTE_SHADER);
+    GLuint handle = mProgramShaderHandleAllocator.allocate();
+
+    mShaderMap[handle] = new Shader(this, factory, rendererLimitations, type, handle);
+
+    return handle;
+}
+
+// Returns an unused program/shader name
+GLuint ResourceManager::createProgram(rx::GLImplFactory *factory)
+{
+    GLuint handle = mProgramShaderHandleAllocator.allocate();
+
+    mProgramMap[handle] = new Program(factory, this, handle);
+
+    return handle;
+}
+
+// Returns an unused texture name
+GLuint ResourceManager::createTexture()
+{
+    GLuint handle = mTextureHandleAllocator.allocate();
+
+    mTextureMap[handle] = nullptr;
+
+    return handle;
+}
+
+// Returns an unused renderbuffer name
+GLuint ResourceManager::createRenderbuffer()
+{
+    GLuint handle = mRenderbufferHandleAllocator.allocate();
+
+    mRenderbufferMap[handle] = nullptr;
+
+    return handle;
+}
+
+// Returns an unused sampler name
+GLuint ResourceManager::createSampler()
+{
+    GLuint handle = mSamplerHandleAllocator.allocate();
+
+    mSamplerMap[handle] = nullptr;
+
+    return handle;
+}
+
+// Returns the next unused fence name, and allocates the fence
+GLuint ResourceManager::createFenceSync(rx::GLImplFactory *factory)
+{
+    GLuint handle = mFenceSyncHandleAllocator.allocate();
+
+    FenceSync *fenceSync = new FenceSync(factory->createFenceSync(), handle);
+    fenceSync->addRef();
+    mFenceSyncMap[handle] = fenceSync;
+
+    return handle;
+}
+
+ErrorOrResult<GLuint> ResourceManager::createPaths(rx::GLImplFactory *factory, GLsizei range)
+{
+    // Allocate client side handles.
+    const GLuint client = mPathHandleAllocator.allocateRange(static_cast<GLuint>(range));
+    if (client == HandleRangeAllocator::kInvalidHandle)
+        return gl::Error(GL_OUT_OF_MEMORY, "Failed to allocate path handle range.");
+
+    const auto &paths = factory->createPaths(range);
+    if (paths.empty())
+    {
+        mPathHandleAllocator.releaseRange(client, range);
+        return gl::Error(GL_OUT_OF_MEMORY, "Failed to allocate path objects.");
+    }
+
+    auto hint = mPathMap.begin();
+
+    for (GLsizei i = 0; i < range; ++i)
+    {
+        const auto impl = paths[static_cast<unsigned>(i)];
+        const auto id   = client + i;
+        hint            = mPathMap.insert(hint, std::make_pair(id, new Path(impl)));
+    }
+    return client;
+}
+
+void ResourceManager::deleteBuffer(GLuint buffer)
+{
+    auto bufferObject = mBufferMap.find(buffer);
+
+    if (bufferObject != mBufferMap.end())
+    {
+        mBufferHandleAllocator.release(bufferObject->first);
+        if (bufferObject->second) bufferObject->second->release();
+        mBufferMap.erase(bufferObject);
+    }
+}
+
+void ResourceManager::deleteShader(GLuint shader)
+{
+    auto shaderObject = mShaderMap.find(shader);
+
+    if (shaderObject != mShaderMap.end())
+    {
+        if (shaderObject->second->getRefCount() == 0)
+        {
+            mProgramShaderHandleAllocator.release(shaderObject->first);
+            delete shaderObject->second;
+            mShaderMap.erase(shaderObject);
+        }
+        else
+        {
+            shaderObject->second->flagForDeletion();
+        }
+    }
+}
+
+void ResourceManager::deleteProgram(GLuint program)
+{
+    auto programObject = mProgramMap.find(program);
+
+    if (programObject != mProgramMap.end())
+    {
+        if (programObject->second->getRefCount() == 0)
+        {
+            mProgramShaderHandleAllocator.release(programObject->first);
+            delete programObject->second;
+            mProgramMap.erase(programObject);
+        }
+        else
+        {
+            programObject->second->flagForDeletion();
+        }
+    }
+}
+
+void ResourceManager::deleteTexture(GLuint texture)
+{
+    auto textureObject = mTextureMap.find(texture);
+
+    if (textureObject != mTextureMap.end())
+    {
+        mTextureHandleAllocator.release(textureObject->first);
+        if (textureObject->second) textureObject->second->release();
+        mTextureMap.erase(textureObject);
+    }
+}
+
+void ResourceManager::deleteRenderbuffer(GLuint renderbuffer)
+{
+    auto renderbufferObject = mRenderbufferMap.find(renderbuffer);
+
+    if (renderbufferObject != mRenderbufferMap.end())
+    {
+        mRenderbufferHandleAllocator.release(renderbufferObject->first);
+        if (renderbufferObject->second) renderbufferObject->second->release();
+        mRenderbufferMap.erase(renderbufferObject);
+    }
+}
+
+void ResourceManager::deleteSampler(GLuint sampler)
+{
+    auto samplerObject = mSamplerMap.find(sampler);
+
+    if (samplerObject != mSamplerMap.end())
+    {
+        mSamplerHandleAllocator.release(samplerObject->first);
+        if (samplerObject->second) samplerObject->second->release();
+        mSamplerMap.erase(samplerObject);
+    }
+}
+
+void ResourceManager::deleteFenceSync(GLuint fenceSync)
+{
+    auto fenceObjectIt = mFenceSyncMap.find(fenceSync);
+
+    if (fenceObjectIt != mFenceSyncMap.end())
+    {
+        mFenceSyncHandleAllocator.release(fenceObjectIt->first);
+        if (fenceObjectIt->second) fenceObjectIt->second->release();
+        mFenceSyncMap.erase(fenceObjectIt);
+    }
+}
+
+void ResourceManager::deletePaths(GLuint first, GLsizei range)
+{
+    for (GLsizei i = 0; i < range; ++i)
+    {
+        const auto id = first + i;
+        const auto it = mPathMap.find(id);
+        if (it == mPathMap.end())
+            continue;
+        Path *p = it->second;
+        delete p;
+        mPathMap.erase(it);
+    }
+    mPathHandleAllocator.releaseRange(first, static_cast<GLuint>(range));
+}
+
+Buffer *ResourceManager::getBuffer(unsigned int handle)
+{
+    auto buffer = mBufferMap.find(handle);
+
+    if (buffer == mBufferMap.end())
+    {
+        return nullptr;
+    }
+    else
+    {
+        return buffer->second;
+    }
+}
+
+Shader *ResourceManager::getShader(unsigned int handle) const
+{
+    auto shader = mShaderMap.find(handle);
+
+    if (shader == mShaderMap.end())
+    {
+        return nullptr;
+    }
+    else
+    {
+        return shader->second;
+    }
+}
+
+Texture *ResourceManager::getTexture(unsigned int handle)
+{
+    if (handle == 0)
+        return nullptr;
+
+    auto texture = mTextureMap.find(handle);
+
+    if (texture == mTextureMap.end())
+    {
+        return nullptr;
+    }
+    else
+    {
+        return texture->second;
+    }
+}
+
+Program *ResourceManager::getProgram(unsigned int handle) const
+{
+    auto program = mProgramMap.find(handle);
+
+    if (program == mProgramMap.end())
+    {
+        return nullptr;
+    }
+    else
+    {
+        return program->second;
+    }
+}
+
+Renderbuffer *ResourceManager::getRenderbuffer(unsigned int handle)
+{
+    auto renderbuffer = mRenderbufferMap.find(handle);
+
+    if (renderbuffer == mRenderbufferMap.end())
+    {
+        return nullptr;
+    }
+    else
+    {
+        return renderbuffer->second;
+    }
+}
+
+Sampler *ResourceManager::getSampler(unsigned int handle)
+{
+    auto sampler = mSamplerMap.find(handle);
+
+    if (sampler == mSamplerMap.end())
+    {
+        return nullptr;
+    }
+    else
+    {
+        return sampler->second;
+    }
+}
+
+FenceSync *ResourceManager::getFenceSync(unsigned int handle)
+{
+    auto fenceObjectIt = mFenceSyncMap.find(handle);
+
+    if (fenceObjectIt == mFenceSyncMap.end())
+    {
+        return nullptr;
+    }
+    else
+    {
+        return fenceObjectIt->second;
+    }
+}
+
+const Path *ResourceManager::getPath(GLuint handle) const
+{
+    auto it = mPathMap.find(handle);
+    if (it == std::end(mPathMap))
+        return nullptr;
+    return it->second;
+}
+
+Path *ResourceManager::getPath(GLuint handle)
+{
+    auto it = mPathMap.find(handle);
+    if (it == std::end(mPathMap))
+        return nullptr;
+
+    return it->second;
+}
+
+bool ResourceManager::hasPath(GLuint handle) const
+{
+    return mPathHandleAllocator.isUsed(handle);
+}
+
+void ResourceManager::setRenderbuffer(GLuint handle, Renderbuffer *buffer)
+{
+    mRenderbufferMap[handle] = buffer;
+}
+
+Buffer *ResourceManager::checkBufferAllocation(rx::GLImplFactory *factory, GLuint handle)
+{
+    if (handle == 0)
+    {
+        return nullptr;
+    }
+
+    auto bufferMapIt     = mBufferMap.find(handle);
+    bool handleAllocated = (bufferMapIt != mBufferMap.end());
+
+    if (handleAllocated && bufferMapIt->second != nullptr)
+    {
+        return bufferMapIt->second;
+    }
+
+    Buffer *buffer = new Buffer(factory, handle);
+    buffer->addRef();
+
+    if (handleAllocated)
+    {
+        bufferMapIt->second = buffer;
+    }
+    else
+    {
+        mBufferHandleAllocator.reserve(handle);
+        mBufferMap[handle] = buffer;
+    }
+
+    return buffer;
+}
+
+Texture *ResourceManager::checkTextureAllocation(rx::GLImplFactory *factory,
+                                                 GLuint handle,
+                                                 GLenum type)
+{
+    if (handle == 0)
+    {
+        return nullptr;
+    }
+
+    auto textureMapIt    = mTextureMap.find(handle);
+    bool handleAllocated = (textureMapIt != mTextureMap.end());
+
+    if (handleAllocated && textureMapIt->second != nullptr)
+    {
+        return textureMapIt->second;
+    }
+
+    Texture *texture = new Texture(factory, handle, type);
+    texture->addRef();
+
+    if (handleAllocated)
+    {
+        textureMapIt->second = texture;
+    }
+    else
+    {
+        mTextureHandleAllocator.reserve(handle);
+        mTextureMap[handle] = texture;
+    }
+
+    return texture;
+}
+
+Renderbuffer *ResourceManager::checkRenderbufferAllocation(rx::GLImplFactory *factory,
+                                                           GLuint handle)
+{
+    if (handle == 0)
+    {
+        return nullptr;
+    }
+
+    auto renderbufferMapIt = mRenderbufferMap.find(handle);
+    bool handleAllocated   = (renderbufferMapIt != mRenderbufferMap.end());
+
+    if (handleAllocated && renderbufferMapIt->second != nullptr)
+    {
+        return renderbufferMapIt->second;
+    }
+
+    Renderbuffer *renderbuffer = new Renderbuffer(factory->createRenderbuffer(), handle);
+    renderbuffer->addRef();
+
+    if (handleAllocated)
+    {
+        renderbufferMapIt->second = renderbuffer;
+    }
+    else
+    {
+        mRenderbufferHandleAllocator.reserve(handle);
+        mRenderbufferMap[handle] = renderbuffer;
+    }
+
+    return renderbuffer;
+}
+
+Sampler *ResourceManager::checkSamplerAllocation(rx::GLImplFactory *factory, GLuint samplerHandle)
+{
+    // Samplers cannot be created via Bind
+    if (samplerHandle == 0)
+    {
+        return nullptr;
+    }
+
+    Sampler *sampler = getSampler(samplerHandle);
+
+    if (!sampler)
+    {
+        sampler                    = new Sampler(factory, samplerHandle);
+        mSamplerMap[samplerHandle] = sampler;
+        sampler->addRef();
+    }
+
+    return sampler;
+}
+
+bool ResourceManager::isSampler(GLuint sampler)
+{
+    return mSamplerMap.find(sampler) != mSamplerMap.end();
+}
+
+bool ResourceManager::isTextureGenerated(GLuint texture) const
+{
+    return texture == 0 || mTextureMap.find(texture) != mTextureMap.end();
+}
+
+bool ResourceManager::isBufferGenerated(GLuint buffer) const
+{
+    return buffer == 0 || mBufferMap.find(buffer) != mBufferMap.end();
+}
+
+bool ResourceManager::isRenderbufferGenerated(GLuint renderbuffer) const
+{
+    return renderbuffer == 0 || mRenderbufferMap.find(renderbuffer) != mRenderbufferMap.end();
+}
+
+}  // namespace gl