Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(42)

Unified Diff: gpu/command_buffer/client/client_discardable_manager.h

Issue 2814583002: Service/ClientDiscardableManager (Closed)
Patch Set: rebase Created 3 years, 7 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
« no previous file with comments | « gpu/command_buffer/client/BUILD.gn ('k') | gpu/command_buffer/client/client_discardable_manager.cc » ('j') | no next file with comments »
Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
Index: gpu/command_buffer/client/client_discardable_manager.h
diff --git a/gpu/command_buffer/client/client_discardable_manager.h b/gpu/command_buffer/client/client_discardable_manager.h
new file mode 100644
index 0000000000000000000000000000000000000000..780b80dcf1772f4f8e329ea899580212828cdfdb
--- /dev/null
+++ b/gpu/command_buffer/client/client_discardable_manager.h
@@ -0,0 +1,72 @@
+// Copyright (c) 2017 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 GPU_COMMAND_BUFFER_CLIENT_CLIENT_DISCARDABLE_MANAGER_H_
+#define GPU_COMMAND_BUFFER_CLIENT_CLIENT_DISCARDABLE_MANAGER_H_
+
+#include <map>
+#include <queue>
+#include <set>
+
+#include "gpu/command_buffer/common/command_buffer.h"
+#include "gpu/command_buffer/common/discardable_handle.h"
+#include "gpu/gpu_export.h"
+
+namespace gpu {
+
+// ClientDiscardableManager is a helper class used by the client GLES2
+// implementation. Currently, this class only supports textures, but it could
+// be extended to other types in the future.
+//
+// When the GLES2 impl is done with a texture (the texture is being deleted),
+// it should call FreeTexture to allow helper memory to be reclaimed.
+class GPU_EXPORT ClientDiscardableManager {
+ public:
+ ClientDiscardableManager();
+ ~ClientDiscardableManager();
+ ClientDiscardableHandle InitializeTexture(CommandBuffer* command_buffer,
+ uint32_t texture_id);
+ bool LockTexture(uint32_t texture_id);
+ void FreeTexture(uint32_t texture_id);
+ bool TextureIsValid(uint32_t texture_id) const;
+
+ // Test only functions.
+ void CheckPendingForTesting(CommandBuffer* command_buffer) {
+ CheckPending(command_buffer);
+ }
+ void SetElementCountForTesting(uint32_t count) {
+ elements_per_allocation_ = count;
+ allocation_size_ = count * element_size_;
+ }
+ ClientDiscardableHandle GetHandleForTesting(uint32_t texture_id);
+
+ private:
+ void FindAllocation(CommandBuffer* command_buffer,
+ scoped_refptr<Buffer>* buffer,
+ int32_t* shm_id,
+ uint32_t* offset);
+ void ReturnAllocation(CommandBuffer* command_buffer,
+ const ClientDiscardableHandle& handle);
+ void CheckPending(CommandBuffer* command_buffer);
+
+ private:
+ size_t allocation_size_;
+ size_t element_size_ = sizeof(base::subtle::Atomic32);
+ uint32_t elements_per_allocation_ =
+ static_cast<uint32_t>(allocation_size_ / element_size_);
+
+ struct Allocation;
+ std::vector<std::unique_ptr<Allocation>> allocations_;
+ std::map<uint32_t, ClientDiscardableHandle> texture_handles_;
+
+ // Handles that are pending service deletion, and can be re-used once
+ // ClientDiscardableHandle::CanBeReUsed returns true.
+ std::queue<ClientDiscardableHandle> pending_handles_;
+
+ DISALLOW_COPY_AND_ASSIGN(ClientDiscardableManager);
+};
+
+} // namespace gpu
+
+#endif // GPU_COMMAND_BUFFER_CLIENT_CLIENT_DISCARDABLE_MANAGER_H_
« no previous file with comments | « gpu/command_buffer/client/BUILD.gn ('k') | gpu/command_buffer/client/client_discardable_manager.cc » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698