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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" |
13 #include "base/posix/eintr_wrapper.h" | 15 #include "base/posix/eintr_wrapper.h" |
14 #include "content/common/gpu/media/exynos_v4l2_video_device.h" | 16 #include "content/common/gpu/media/exynos_v4l2_video_device.h" |
17 #include "ui/gl/gl_bindings.h" | |
15 | 18 |
16 namespace content { | 19 namespace content { |
17 | 20 |
18 namespace { | 21 namespace { |
19 const char kDevice[] = "/dev/mfc-dec"; | 22 const char kDevice[] = "/dev/mfc-dec"; |
20 } | 23 } |
21 | 24 |
22 ExynosV4L2Device::ExynosV4L2Device() | 25 ExynosV4L2Device::ExynosV4L2Device() |
23 : device_fd_(-1), device_poll_interrupt_fd_(-1) {} | 26 : device_fd_(-1), device_poll_interrupt_fd_(-1) {} |
24 | 27 |
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107 if (device_fd_ == -1) { | 110 if (device_fd_ == -1) { |
108 return false; | 111 return false; |
109 } | 112 } |
110 | 113 |
111 device_poll_interrupt_fd_ = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC); | 114 device_poll_interrupt_fd_ = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC); |
112 if (device_poll_interrupt_fd_ == -1) { | 115 if (device_poll_interrupt_fd_ == -1) { |
113 return false; | 116 return false; |
114 } | 117 } |
115 return true; | 118 return true; |
116 } | 119 } |
120 | |
121 EGLImageKHR ExynosV4L2Device::CreateEGLImage(EGLDisplay egl_display, | |
122 GLuint texture_id, | |
123 gfx::Size frame_buffer_size, | |
124 unsigned int buffer_index) { | |
125 DVLOG(3) << "CreateEGLImage()"; | |
126 int dmabuf_fds[2] = {-1, -1}; | |
Pawel Osciak
2014/03/27 09:09:50
As I mentioned before, num_planes should be passed
shivdasp
2014/03/27 09:33:22
I think this is do-able quickly.Done.
On 2014/03/2
sheu
2014/03/27 09:40:41
I'd disagree here -- if we're defining a preferred
shivdasp
2014/03/27 10:06:46
I think the num_planes depend upon the output form
Pawel Osciak
2014/03/28 05:33:53
Yes this is exactly what I mean. There is no need
shivdasp
2014/03/28 05:42:38
Okay I will make a change to send in the num_plane
| |
127 for (size_t i = 0; i < arraysize(dmabuf_fds); ++i) { | |
128 // Export the DMABUF fd so we can export it as a texture. | |
129 struct v4l2_exportbuffer expbuf; | |
130 memset(&expbuf, 0, sizeof(expbuf)); | |
131 expbuf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; | |
132 expbuf.index = buffer_index; | |
133 expbuf.plane = i; | |
134 expbuf.flags = O_CLOEXEC; | |
135 if (HANDLE_EINTR(Ioctl(VIDIOC_EXPBUF, &expbuf) != 0)) { | |
136 return EGL_NO_IMAGE_KHR; | |
Pawel Osciak
2014/03/27 09:09:50
If this fails on any other than the first fd, we w
shivdasp
2014/03/27 09:33:22
I need to understand the usage here. If I understa
sheu
2014/03/27 09:40:41
See above about preferred format.
In the case we
shivdasp
2014/03/27 10:06:46
Using ScopedFD looks easier, let me make that chan
Pawel Osciak
2014/03/28 05:33:53
Yes, sorry, I forgot we had ScopedFD
| |
137 } | |
138 dmabuf_fds[i] = expbuf.fd; | |
139 } | |
140 EGLint attrs[] = { | |
141 EGL_WIDTH, 0, EGL_HEIGHT, 0, | |
142 EGL_LINUX_DRM_FOURCC_EXT, 0, EGL_DMA_BUF_PLANE0_FD_EXT, 0, | |
143 EGL_DMA_BUF_PLANE0_OFFSET_EXT, 0, EGL_DMA_BUF_PLANE0_PITCH_EXT, 0, | |
144 EGL_DMA_BUF_PLANE1_FD_EXT, 0, EGL_DMA_BUF_PLANE1_OFFSET_EXT, 0, | |
145 EGL_DMA_BUF_PLANE1_PITCH_EXT, 0, EGL_NONE, }; | |
146 attrs[1] = frame_buffer_size.width(); | |
147 attrs[3] = frame_buffer_size.height(); | |
148 attrs[5] = DRM_FORMAT_NV12; | |
Pawel Osciak
2014/03/27 09:09:50
This shouldn't be hardcoded either actually...
Ho
shivdasp
2014/03/27 09:33:22
How do you propose we remove the hardcoding of DRM
sheu
2014/03/27 09:40:41
See above about preferred format.
Pawel Osciak
2014/03/28 05:33:53
Ok, let's keep it for now and figure it out later.
shivdasp
2014/03/28 05:42:38
I understand there is no more change required here
| |
149 attrs[7] = dmabuf_fds[0]; | |
150 attrs[9] = 0; | |
151 attrs[11] = frame_buffer_size.width(); | |
152 attrs[13] = dmabuf_fds[1]; | |
153 attrs[15] = 0; | |
154 attrs[17] = frame_buffer_size.width(); | |
155 | |
156 EGLImageKHR egl_image = eglCreateImageKHR( | |
157 egl_display, EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, attrs); | |
158 if (egl_image == EGL_NO_IMAGE_KHR) { | |
159 close(dmabuf_fds[0]); | |
160 close(dmabuf_fds[1]); | |
161 return egl_image; | |
162 } | |
163 glBindTexture(GL_TEXTURE_EXTERNAL_OES, texture_id); | |
164 glEGLImageTargetTexture2DOES(GL_TEXTURE_EXTERNAL_OES, egl_image); | |
165 | |
166 // Close the fds now | |
167 close(dmabuf_fds[0]); | |
168 close(dmabuf_fds[1]); | |
169 return egl_image; | |
170 } | |
171 | |
172 EGLBoolean ExynosV4L2Device::DestroyEGLImage(EGLDisplay egl_display, | |
173 EGLImageKHR egl_image) { | |
174 return eglDestroyImageKHR(egl_display, egl_image); | |
175 } | |
176 | |
177 GLenum ExynosV4L2Device::GetTextureTarget() { return GL_TEXTURE_EXTERNAL_OES; } | |
178 | |
179 uint32 ExynosV4L2Device::PreferredOutputFormat() { return V4L2_PIX_FMT_NV12M; } | |
180 | |
117 } // namespace content | 181 } // namespace content |
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