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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 | |
5 #include <fcntl.h> | 6 #include <fcntl.h> |
7 #include <libdrm/drm_fourcc.h> | |
6 #include <linux/videodev2.h> | 8 #include <linux/videodev2.h> |
7 #include <poll.h> | 9 #include <poll.h> |
8 #include <sys/eventfd.h> | 10 #include <sys/eventfd.h> |
9 #include <sys/ioctl.h> | 11 #include <sys/ioctl.h> |
10 #include <sys/mman.h> | 12 #include <sys/mman.h> |
11 | 13 |
12 #include "base/debug/trace_event.h" | 14 #include "base/debug/trace_event.h" |
15 #include "base/files/scoped_file.h" | |
13 #include "base/posix/eintr_wrapper.h" | 16 #include "base/posix/eintr_wrapper.h" |
14 #include "content/common/gpu/media/exynos_v4l2_video_device.h" | 17 #include "content/common/gpu/media/exynos_v4l2_video_device.h" |
18 #include "ui/gl/gl_bindings.h" | |
15 | 19 |
16 namespace content { | 20 namespace content { |
17 | 21 |
18 namespace { | 22 namespace { |
19 const char kDevice[] = "/dev/mfc-dec"; | 23 const char kDevice[] = "/dev/mfc-dec"; |
20 } | 24 } |
21 | 25 |
22 ExynosV4L2Device::ExynosV4L2Device() | 26 ExynosV4L2Device::ExynosV4L2Device() |
23 : device_fd_(-1), device_poll_interrupt_fd_(-1) {} | 27 : device_fd_(-1), device_poll_interrupt_fd_(-1) {} |
24 | 28 |
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107 if (device_fd_ == -1) { | 111 if (device_fd_ == -1) { |
108 return false; | 112 return false; |
109 } | 113 } |
110 | 114 |
111 device_poll_interrupt_fd_ = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC); | 115 device_poll_interrupt_fd_ = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC); |
112 if (device_poll_interrupt_fd_ == -1) { | 116 if (device_poll_interrupt_fd_ == -1) { |
113 return false; | 117 return false; |
114 } | 118 } |
115 return true; | 119 return true; |
116 } | 120 } |
121 | |
122 EGLImageKHR ExynosV4L2Device::CreateEGLImage(EGLDisplay egl_display, | |
123 GLuint texture_id, | |
124 gfx::Size frame_buffer_size, | |
125 unsigned int buffer_index, | |
126 size_t planes_count) { | |
127 DVLOG(3) << "CreateEGLImage()"; | |
128 | |
129 scoped_ptr<base::ScopedFD[]> dmabuf_fds(new base::ScopedFD[planes_count]); | |
130 for (size_t i = 0; i < planes_count; ++i) { | |
131 // Export the DMABUF fd so we can export it as a texture. | |
132 struct v4l2_exportbuffer expbuf; | |
133 memset(&expbuf, 0, sizeof(expbuf)); | |
134 expbuf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; | |
135 expbuf.index = buffer_index; | |
136 expbuf.plane = i; | |
137 expbuf.flags = O_CLOEXEC; | |
138 if (HANDLE_EINTR(Ioctl(VIDIOC_EXPBUF, &expbuf) != 0)) { | |
139 return EGL_NO_IMAGE_KHR; | |
140 } | |
141 dmabuf_fds[i].reset(expbuf.fd); | |
142 } | |
Pawel Osciak
2014/03/29 11:16:12
Since we are hardcoding,
DCHECK_EQ(planes_count,
shivdasp
2014/03/29 17:47:37
Done.
| |
143 EGLint attrs[] = { | |
144 EGL_WIDTH, 0, EGL_HEIGHT, 0, | |
145 EGL_LINUX_DRM_FOURCC_EXT, 0, EGL_DMA_BUF_PLANE0_FD_EXT, 0, | |
146 EGL_DMA_BUF_PLANE0_OFFSET_EXT, 0, EGL_DMA_BUF_PLANE0_PITCH_EXT, 0, | |
147 EGL_DMA_BUF_PLANE1_FD_EXT, 0, EGL_DMA_BUF_PLANE1_OFFSET_EXT, 0, | |
148 EGL_DMA_BUF_PLANE1_PITCH_EXT, 0, EGL_NONE, }; | |
149 attrs[1] = frame_buffer_size.width(); | |
150 attrs[3] = frame_buffer_size.height(); | |
151 attrs[5] = DRM_FORMAT_NV12; | |
152 attrs[7] = dmabuf_fds[0].get(); | |
153 attrs[9] = 0; | |
154 attrs[11] = frame_buffer_size.width(); | |
155 attrs[13] = dmabuf_fds[1].get(); | |
156 attrs[15] = 0; | |
157 attrs[17] = frame_buffer_size.width(); | |
158 | |
159 EGLImageKHR egl_image = eglCreateImageKHR( | |
160 egl_display, EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, attrs); | |
161 if (egl_image == EGL_NO_IMAGE_KHR) { | |
162 return egl_image; | |
163 } | |
164 glBindTexture(GL_TEXTURE_EXTERNAL_OES, texture_id); | |
165 glEGLImageTargetTexture2DOES(GL_TEXTURE_EXTERNAL_OES, egl_image); | |
166 | |
167 return egl_image; | |
168 } | |
169 | |
170 EGLBoolean ExynosV4L2Device::DestroyEGLImage(EGLDisplay egl_display, | |
171 EGLImageKHR egl_image) { | |
172 return eglDestroyImageKHR(egl_display, egl_image); | |
173 } | |
174 | |
175 GLenum ExynosV4L2Device::GetTextureTarget() { return GL_TEXTURE_EXTERNAL_OES; } | |
176 | |
177 uint32 ExynosV4L2Device::PreferredOutputFormat() { return V4L2_PIX_FMT_NV12M; } | |
178 | |
117 } // namespace content | 179 } // namespace content |
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