Index: content/common/gpu/media/exynos_v4l2_video_device.cc |
diff --git a/content/common/gpu/media/exynos_v4l2_video_device.cc b/content/common/gpu/media/exynos_v4l2_video_device.cc |
index ef40cf0e6854e4a7a9b90aa24d038bfb60977432..1ee7557ee210ba0799c796ca48f21261b2ed3002 100644 |
--- a/content/common/gpu/media/exynos_v4l2_video_device.cc |
+++ b/content/common/gpu/media/exynos_v4l2_video_device.cc |
@@ -2,7 +2,9 @@ |
// Use of this source code is governed by a BSD-style license that can be |
// found in the LICENSE file. |
// |
+ |
#include <fcntl.h> |
+#include <libdrm/drm_fourcc.h> |
#include <linux/videodev2.h> |
#include <poll.h> |
#include <sys/eventfd.h> |
@@ -10,8 +12,10 @@ |
#include <sys/mman.h> |
#include "base/debug/trace_event.h" |
+#include "base/files/scoped_file.h" |
#include "base/posix/eintr_wrapper.h" |
#include "content/common/gpu/media/exynos_v4l2_video_device.h" |
+#include "ui/gl/gl_bindings.h" |
namespace content { |
@@ -114,4 +118,63 @@ bool ExynosV4L2Device::Initialize() { |
} |
return true; |
} |
+ |
+EGLImageKHR ExynosV4L2Device::CreateEGLImage(EGLDisplay egl_display, |
+ GLuint texture_id, |
+ gfx::Size frame_buffer_size, |
+ unsigned int buffer_index, |
+ size_t planes_count) { |
+ DVLOG(3) << "CreateEGLImage()"; |
+ |
+ scoped_ptr<base::ScopedFD[]> dmabuf_fds(new base::ScopedFD[planes_count]); |
+ for (size_t i = 0; i < planes_count; ++i) { |
+ // Export the DMABUF fd so we can export it as a texture. |
+ struct v4l2_exportbuffer expbuf; |
+ memset(&expbuf, 0, sizeof(expbuf)); |
+ expbuf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; |
+ expbuf.index = buffer_index; |
+ expbuf.plane = i; |
+ expbuf.flags = O_CLOEXEC; |
+ if (HANDLE_EINTR(Ioctl(VIDIOC_EXPBUF, &expbuf) != 0)) { |
+ return EGL_NO_IMAGE_KHR; |
+ } |
+ dmabuf_fds[i].reset(expbuf.fd); |
+ } |
+ DCHECK_EQ(planes_count, 2); |
+ EGLint attrs[] = { |
+ EGL_WIDTH, 0, EGL_HEIGHT, 0, |
+ EGL_LINUX_DRM_FOURCC_EXT, 0, EGL_DMA_BUF_PLANE0_FD_EXT, 0, |
+ EGL_DMA_BUF_PLANE0_OFFSET_EXT, 0, EGL_DMA_BUF_PLANE0_PITCH_EXT, 0, |
+ EGL_DMA_BUF_PLANE1_FD_EXT, 0, EGL_DMA_BUF_PLANE1_OFFSET_EXT, 0, |
+ EGL_DMA_BUF_PLANE1_PITCH_EXT, 0, EGL_NONE, }; |
+ attrs[1] = frame_buffer_size.width(); |
+ attrs[3] = frame_buffer_size.height(); |
+ attrs[5] = DRM_FORMAT_NV12; |
+ attrs[7] = dmabuf_fds[0].get(); |
+ attrs[9] = 0; |
+ attrs[11] = frame_buffer_size.width(); |
+ attrs[13] = dmabuf_fds[1].get(); |
+ attrs[15] = 0; |
+ attrs[17] = frame_buffer_size.width(); |
+ |
+ EGLImageKHR egl_image = eglCreateImageKHR( |
+ egl_display, EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, attrs); |
+ if (egl_image == EGL_NO_IMAGE_KHR) { |
+ return egl_image; |
+ } |
+ glBindTexture(GL_TEXTURE_EXTERNAL_OES, texture_id); |
+ glEGLImageTargetTexture2DOES(GL_TEXTURE_EXTERNAL_OES, egl_image); |
+ |
+ return egl_image; |
+} |
+ |
+EGLBoolean ExynosV4L2Device::DestroyEGLImage(EGLDisplay egl_display, |
+ EGLImageKHR egl_image) { |
+ return eglDestroyImageKHR(egl_display, egl_image); |
+} |
+ |
+GLenum ExynosV4L2Device::GetTextureTarget() { return GL_TEXTURE_EXTERNAL_OES; } |
+ |
+uint32 ExynosV4L2Device::PreferredOutputFormat() { return V4L2_PIX_FMT_NV12M; } |
+ |
} // namespace content |