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Diffstat (limited to 'src/gpu/GrTransferBuffer.h')
-rwxr-xr-x | src/gpu/GrTransferBuffer.h | 76 |
1 files changed, 0 insertions, 76 deletions
diff --git a/src/gpu/GrTransferBuffer.h b/src/gpu/GrTransferBuffer.h deleted file mode 100755 index bd80666fd6..0000000000 --- a/src/gpu/GrTransferBuffer.h +++ /dev/null @@ -1,76 +0,0 @@ - -/* - * Copyright 2015 Google Inc. - * - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ - - -#ifndef GrTransferBuffer_DEFINED -#define GrTransferBuffer_DEFINED - -#include "GrGpuResource.h" - -class GrTransferBuffer : public GrGpuResource { -public: - /** - * Maps the buffer to be written by the CPU. - * - * The previous content of the buffer is invalidated. It is an error - * to transfer to or from the buffer while it is mapped. It is an error to - * call map on an already mapped buffer. Must be matched by an unmap() call. - * Currently only one map at a time is supported (no nesting of map/unmap). - * - * Note that buffer mapping does not go through GrContext and therefore is - * not serialized with other operations. - * - * @return a pointer to the data or nullptr if the map fails. - */ - void* map() { return (fMapPtr = this->onMap()); } - - /** - * Unmaps the buffer. - * - * The pointer returned by the previous map call will no longer be valid. - */ - void unmap() { - SkASSERT(fMapPtr); - this->onUnmap(); - fMapPtr = nullptr; - } - - /** - * Returns the same ptr that map() returned at time of map or nullptr if the - * is not mapped. - * - * @return ptr to mapped buffer data or nullptr if buffer is not mapped. - */ - void* mapPtr() const { return fMapPtr; } - - /** - Queries whether the buffer has been mapped. - - @return true if the buffer is mapped, false otherwise. - */ - bool isMapped() const { return SkToBool(fMapPtr); } - -protected: - GrTransferBuffer(GrGpu* gpu, size_t gpuMemorySize) - : INHERITED(gpu, kUncached_LifeCycle) - , fGpuMemorySize(gpuMemorySize) { - } - -private: - virtual size_t onGpuMemorySize() const { return fGpuMemorySize; } - - virtual void* onMap() = 0; - virtual void onUnmap() = 0; - - void* fMapPtr; - size_t fGpuMemorySize; - - typedef GrGpuResource INHERITED; -}; - -#endif |