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Unified Diff: src/gpu/GrTransferBuffer.h

Issue 1496843003: Revert of Add transfer buffer support. (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: Created 5 years ago
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Index: src/gpu/GrTransferBuffer.h
diff --git a/src/gpu/GrTransferBuffer.h b/src/gpu/GrTransferBuffer.h
deleted file mode 100755
index bd80666fd6d09aa69deaba9d6ea18b227142f34f..0000000000000000000000000000000000000000
--- 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
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