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Unified Diff: cc/raster/zero_copy_raster_buffer_provider.h

Issue 1910213005: cc: Refactor TileTaskWorkerPool. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@task_states
Patch Set: feedback Created 4 years, 8 months ago
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Index: cc/raster/zero_copy_raster_buffer_provider.h
diff --git a/cc/raster/zero_copy_raster_buffer_provider.h b/cc/raster/zero_copy_raster_buffer_provider.h
new file mode 100644
index 0000000000000000000000000000000000000000..f813a59b894ff6e1b0f32e214ede62d40c484508
--- /dev/null
+++ b/cc/raster/zero_copy_raster_buffer_provider.h
@@ -0,0 +1,59 @@
+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CC_RASTER_ZERO_COPY_RASTER_BUFFER_PROVIDER_H_
+#define CC_RASTER_ZERO_COPY_RASTER_BUFFER_PROVIDER_H_
+
+#include <stdint.h>
+
+#include "base/macros.h"
+#include "base/memory/weak_ptr.h"
+#include "base/values.h"
+#include "cc/raster/raster_buffer_provider.h"
+
+namespace base {
+namespace trace_event {
+class ConvertableToTraceFormat;
+}
+}
+
+namespace cc {
+class ResourceProvider;
+
+class CC_EXPORT ZeroCopyRasterBufferProvider : public RasterBufferProvider {
+ public:
+ ~ZeroCopyRasterBufferProvider() override;
+
+ static std::unique_ptr<RasterBufferProvider> Create(
+ ResourceProvider* resource_provider,
+ ResourceFormat preferred_tile_format);
+
+ // Overridden from RasterBufferProvider:
+ std::unique_ptr<RasterBuffer> AcquireBufferForRaster(
+ const Resource* resource,
+ uint64_t resource_content_id,
+ uint64_t previous_content_id) override;
+ void ReleaseBufferForRaster(std::unique_ptr<RasterBuffer> buffer) override;
+ void OrderingBarrier() override;
+ ResourceFormat GetResourceFormat(bool must_support_alpha) const override;
+ bool GetResourceRequiresSwizzle(bool must_support_alpha) const override;
+ void Shutdown() override;
+
+ protected:
+ ZeroCopyRasterBufferProvider(ResourceProvider* resource_provider,
+ ResourceFormat preferred_tile_format);
+
+ private:
+ std::unique_ptr<base::trace_event::ConvertableToTraceFormat> StateAsValue()
+ const;
+
+ ResourceProvider* resource_provider_;
+ ResourceFormat preferred_tile_format_;
+
+ DISALLOW_COPY_AND_ASSIGN(ZeroCopyRasterBufferProvider);
+};
+
+} // namespace cc
+
+#endif // CC_RASTER_ZERO_COPY_RASTER_BUFFER_PROVIDER_H_
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