Add m-esr52 at 52.6.0

1 files changed, 156 insertions, 0 deletions

diff --git a/gfx/angle/src/libANGLE/renderer/d3d/d3d11/Buffer11.h b/gfx/angle/src/libANGLE/renderer/d3d/d3d11/Buffer11.h
new file mode 100755
index 000000000..3210f05bc
--- /dev/null
+++ b/gfx/angle/src/libANGLE/renderer/d3d/d3d11/Buffer11.h
@@ -0,0 +1,156 @@
+//
+// Copyright 2014 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.
+//
+
+// Buffer11.h: Defines the rx::Buffer11 class which implements rx::BufferImpl via rx::BufferD3D.
+
+#ifndef LIBANGLE_RENDERER_D3D_D3D11_BUFFER11_H_
+#define LIBANGLE_RENDERER_D3D_D3D11_BUFFER11_H_
+
+#include <array>
+#include <map>
+
+#include "libANGLE/angletypes.h"
+#include "libANGLE/renderer/d3d/BufferD3D.h"
+#include "libANGLE/signal_utils.h"
+
+namespace gl
+{
+class FramebufferAttachment;
+}
+
+namespace rx
+{
+struct PackPixelsParams;
+class Renderer11;
+struct SourceIndexData;
+struct TranslatedAttribute;
+
+// The order of this enum governs priority of 'getLatestBufferStorage'.
+enum BufferUsage
+{
+    BUFFER_USAGE_SYSTEM_MEMORY,
+    BUFFER_USAGE_STAGING,
+    BUFFER_USAGE_VERTEX_OR_TRANSFORM_FEEDBACK,
+    BUFFER_USAGE_INDEX,
+    BUFFER_USAGE_PIXEL_UNPACK,
+    BUFFER_USAGE_PIXEL_PACK,
+    BUFFER_USAGE_UNIFORM,
+    BUFFER_USAGE_EMULATED_INDEXED_VERTEX,
+
+    BUFFER_USAGE_COUNT,
+};
+
+typedef size_t DataRevision;
+
+class Buffer11 : public BufferD3D
+{
+  public:
+    Buffer11(const gl::BufferState &state, Renderer11 *renderer);
+    virtual ~Buffer11();
+
+    gl::ErrorOrResult<ID3D11Buffer *> getBuffer(BufferUsage usage);
+    gl::ErrorOrResult<ID3D11Buffer *> getEmulatedIndexedBuffer(SourceIndexData *indexInfo,
+                                                               const TranslatedAttribute &attribute,
+                                                               GLint startVertex);
+    gl::Error getConstantBufferRange(GLintptr offset,
+                                     GLsizeiptr size,
+                                     ID3D11Buffer **bufferOut,
+                                     UINT *firstConstantOut,
+                                     UINT *numConstantsOut);
+    gl::ErrorOrResult<ID3D11ShaderResourceView *> getSRV(DXGI_FORMAT srvFormat);
+    bool isMapped() const { return mMappedStorage != nullptr; }
+    gl::Error packPixels(const gl::FramebufferAttachment &readAttachment,
+                         const PackPixelsParams &params);
+    size_t getTotalCPUBufferMemoryBytes() const;
+
+    // BufferD3D implementation
+    size_t getSize() const override { return mSize; }
+    bool supportsDirectBinding() const override;
+    gl::Error getData(const uint8_t **outData) override;
+    void initializeStaticData() override;
+    void invalidateStaticData() override;
+
+    // BufferImpl implementation
+    gl::Error setData(GLenum target, const void *data, size_t size, GLenum usage) override;
+    gl::Error setSubData(GLenum target, const void *data, size_t size, size_t offset) override;
+    gl::Error copySubData(BufferImpl *source,
+                          GLintptr sourceOffset,
+                          GLintptr destOffset,
+                          GLsizeiptr size) override;
+    gl::Error map(GLenum access, GLvoid **mapPtr) override;
+    gl::Error mapRange(size_t offset, size_t length, GLbitfield access, GLvoid **mapPtr) override;
+    gl::Error unmap(GLboolean *result) override;
+    gl::Error markTransformFeedbackUsage() override;
+
+    // We use two set of dirty events. Static buffers are marked dirty whenever
+    // data changes, because they must be re-translated. Direct buffers only need to be
+    // updated when the underlying ID3D11Buffer pointer changes - hopefully far less often.
+    angle::BroadcastChannel *getStaticBroadcastChannel();
+    angle::BroadcastChannel *getDirectBroadcastChannel();
+
+  private:
+    class BufferStorage;
+    class EmulatedIndexedStorage;
+    class NativeStorage;
+    class PackStorage;
+    class SystemMemoryStorage;
+
+    struct ConstantBufferCacheEntry
+    {
+        ConstantBufferCacheEntry() : storage(nullptr), lruCount(0) { }
+
+        BufferStorage *storage;
+        unsigned int lruCount;
+    };
+
+    void markBufferUsage(BufferUsage usage);
+    gl::Error garbageCollection(BufferUsage currentUsage);
+    gl::ErrorOrResult<NativeStorage *> getStagingStorage();
+    gl::ErrorOrResult<PackStorage *> getPackStorage();
+    gl::ErrorOrResult<SystemMemoryStorage *> getSystemMemoryStorage();
+
+    gl::Error updateBufferStorage(BufferStorage *storage, size_t sourceOffset, size_t storageSize);
+    gl::ErrorOrResult<BufferStorage *> getBufferStorage(BufferUsage usage);
+    gl::ErrorOrResult<BufferStorage *> getLatestBufferStorage() const;
+
+    gl::ErrorOrResult<BufferStorage *> getConstantBufferRangeStorage(GLintptr offset,
+                                                                     GLsizeiptr size);
+
+    BufferStorage *allocateStorage(BufferUsage usage);
+    void updateDeallocThreshold(BufferUsage usage);
+
+    // Free the storage if we decide it isn't being used very often.
+    gl::Error checkForDeallocation(BufferUsage usage);
+
+    // For some cases of uniform buffer storage, we can't deallocate system memory storage.
+    bool canDeallocateSystemMemory() const;
+
+    Renderer11 *mRenderer;
+    size_t mSize;
+
+    BufferStorage *mMappedStorage;
+
+    std::array<BufferStorage *, BUFFER_USAGE_COUNT> mBufferStorages;
+
+    // These two arrays are used to track when to free unused storage.
+    std::array<unsigned int, BUFFER_USAGE_COUNT> mDeallocThresholds;
+    std::array<unsigned int, BUFFER_USAGE_COUNT> mIdleness;
+
+    // Cache of D3D11 constant buffer for specific ranges of buffer data.
+    // This is used to emulate UBO ranges on 11.0 devices.
+    // Constant buffers are indexed by there start offset.
+    typedef std::map<GLintptr /*offset*/, ConstantBufferCacheEntry> ConstantBufferCache;
+    ConstantBufferCache mConstantBufferRangeStoragesCache;
+    size_t mConstantBufferStorageAdditionalSize;
+    unsigned int mMaxConstantBufferLruCount;
+
+    angle::BroadcastChannel mStaticBroadcastChannel;
+    angle::BroadcastChannel mDirectBroadcastChannel;
+};
+
+}  // namespace rx
+
+#endif // LIBANGLE_RENDERER_D3D_D3D11_BUFFER11_H_