1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef GPU_COMMAND_BUFFER_CLIENT_GPU_CONTROL_H_ 6 #define GPU_COMMAND_BUFFER_CLIENT_GPU_CONTROL_H_ 7 8 #include <stdint.h> 9 10 #include <vector> 11 12 #include "base/callback.h" 13 #include "base/macros.h" 14 #include "gpu/command_buffer/common/capabilities.h" 15 #include "gpu/command_buffer/common/mailbox.h" 16 #include "gpu/gpu_export.h" 17 18 namespace gfx { 19 class GpuMemoryBuffer; 20 } 21 22 namespace gpu { 23 24 // Common interface for GpuControl implementations. 25 class GPU_EXPORT GpuControl { 26 public: 27 GpuControl() {} 28 virtual ~GpuControl() {} 29 30 virtual Capabilities GetCapabilities() = 0; 31 32 // Create a gpu memory buffer of the given dimensions and format. Returns 33 // its ID or -1 on error. 34 virtual gfx::GpuMemoryBuffer* CreateGpuMemoryBuffer( 35 size_t width, 36 size_t height, 37 unsigned internalformat, 38 unsigned usage, 39 int32_t* id) = 0; 40 41 // Destroy a gpu memory buffer. The ID must be positive. 42 virtual void DestroyGpuMemoryBuffer(int32_t id) = 0; 43 44 // Inserts a sync point, returning its ID. Sync point IDs are global and can 45 // be used for cross-context synchronization. 46 virtual uint32_t InsertSyncPoint() = 0; 47 48 // Inserts a future sync point, returning its ID. Sync point IDs are global 49 // and can be used for cross-context synchronization. The sync point won't be 50 // retired immediately. 51 virtual uint32_t InsertFutureSyncPoint() = 0; 52 53 // Retires a future sync point. This will signal contexts that are waiting 54 // on it to start executing. 55 virtual void RetireSyncPoint(uint32_t sync_point) = 0; 56 57 // Runs |callback| when a sync point is reached. 58 virtual void SignalSyncPoint(uint32_t sync_point, 59 const base::Closure& callback) = 0; 60 61 // Runs |callback| when a query created via glCreateQueryEXT() has cleared 62 // passed the glEndQueryEXT() point. 63 virtual void SignalQuery(uint32_t query, const base::Closure& callback) = 0; 64 65 virtual void SetSurfaceVisible(bool visible) = 0; 66 67 // Invokes the callback once the context has been flushed. 68 virtual void Echo(const base::Closure& callback) = 0; 69 70 // Attaches an external stream to the texture given by |texture_id| and 71 // returns a stream identifier. 72 virtual uint32_t CreateStreamTexture(uint32_t texture_id) = 0; 73 74 private: 75 DISALLOW_COPY_AND_ASSIGN(GpuControl); 76 }; 77 78 } // namespace gpu 79 80 #endif // GPU_COMMAND_BUFFER_CLIENT_GPU_CONTROL_H_ 81
