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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 // | 4 // |
5 // This file contains the implementation of TegraV4L2Device used on | 5 // This file contains the implementation of TegraV4L2Device used on |
6 // Tegra platform. | 6 // Tegra platform. |
7 | 7 |
8 #ifndef CONTENT_COMMON_GPU_MEDIA_TEGRA_V4L2_VIDEO_DEVICE_H_ | 8 #ifndef CONTENT_COMMON_GPU_MEDIA_TEGRA_V4L2_VIDEO_DEVICE_H_ |
9 #define CONTENT_COMMON_GPU_MEDIA_TEGRA_V4L2_VIDEO_DEVICE_H_ | 9 #define CONTENT_COMMON_GPU_MEDIA_TEGRA_V4L2_VIDEO_DEVICE_H_ |
10 | 10 |
11 #include "content/common/gpu/media/v4l2_video_device.h" | 11 #include "content/common/gpu/media/v4l2_video_device.h" |
12 #include "ui/gl/gl_bindings.h" | 12 #include "ui/gl/gl_bindings.h" |
13 | 13 |
14 namespace content { | 14 namespace content { |
15 | 15 |
16 // This class implements the V4L2Device interface for Tegra platform. | 16 // This class implements the V4L2Device interface for Tegra platform. |
17 // It interfaces with libtegrav4l2 library which provides API that exhibit the | 17 // It interfaces with libtegrav4l2 library which provides API that exhibit the |
18 // V4L2 specification via the library API instead of system calls. | 18 // V4L2 specification via the library API instead of system calls. |
19 class TegraV4L2Device : public V4L2Device { | 19 class TegraV4L2Device : public V4L2Device { |
20 public: | 20 public: |
21 explicit TegraV4L2Device(Type type); | 21 explicit TegraV4L2Device(Type type); |
| 22 virtual ~TegraV4L2Device(); |
22 | 23 |
23 int Ioctl(int flags, void* arg) override; | 24 int Ioctl(int flags, void* arg) override; |
24 bool Poll(bool poll_device, bool* event_pending) override; | 25 bool Poll(bool poll_device, bool* event_pending) override; |
25 bool SetDevicePollInterrupt() override; | 26 bool SetDevicePollInterrupt() override; |
26 bool ClearDevicePollInterrupt() override; | 27 bool ClearDevicePollInterrupt() override; |
27 void* Mmap(void* addr, | 28 void* Mmap(void* addr, |
28 unsigned int len, | 29 unsigned int len, |
29 int prot, | 30 int prot, |
30 int flags, | 31 int flags, |
31 unsigned int offset) override; | 32 unsigned int offset) override; |
32 void Munmap(void* addr, unsigned int len) override; | 33 void Munmap(void* addr, unsigned int len) override; |
33 bool Initialize() override; | 34 bool Initialize() override; |
34 bool CanCreateEGLImageFrom(uint32_t v4l2_pixfmt) override; | 35 bool CanCreateEGLImageFrom(uint32_t v4l2_pixfmt) override; |
35 EGLImageKHR CreateEGLImage(EGLDisplay egl_display, | 36 EGLImageKHR CreateEGLImage(EGLDisplay egl_display, |
36 EGLContext egl_context, | 37 EGLContext egl_context, |
37 GLuint texture_id, | 38 GLuint texture_id, |
38 gfx::Size frame_buffer_size, | 39 gfx::Size frame_buffer_size, |
39 unsigned int buffer_index, | 40 unsigned int buffer_index, |
40 uint32_t v4l2_pixfmt, | 41 uint32_t v4l2_pixfmt, |
41 size_t num_v4l2_planes); | 42 size_t num_v4l2_planes); |
42 EGLBoolean DestroyEGLImage(EGLDisplay egl_display, | 43 EGLBoolean DestroyEGLImage(EGLDisplay egl_display, |
43 EGLImageKHR egl_image) override; | 44 EGLImageKHR egl_image) override; |
44 GLenum GetTextureTarget() override; | 45 GLenum GetTextureTarget() override; |
45 uint32 PreferredInputFormat() override; | 46 uint32 PreferredInputFormat() override; |
46 | 47 |
47 private: | 48 private: |
48 ~TegraV4L2Device() override; | |
49 const Type type_; | 49 const Type type_; |
50 | 50 |
51 // The actual device fd. | 51 // The actual device fd. |
52 int device_fd_; | 52 int device_fd_; |
53 | 53 |
54 DISALLOW_COPY_AND_ASSIGN(TegraV4L2Device); | 54 DISALLOW_COPY_AND_ASSIGN(TegraV4L2Device); |
55 }; | 55 }; |
56 | 56 |
57 } // namespace content | 57 } // namespace content |
58 | 58 |
59 #endif // CONTENT_COMMON_GPU_MEDIA_TEGRA_V4L2_VIDEO_DEVICE_H_ | 59 #endif // CONTENT_COMMON_GPU_MEDIA_TEGRA_V4L2_VIDEO_DEVICE_H_ |
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