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// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/gpu/media/fake_gl_video_device.h"
#include "app/gfx/gl/gl_bindings.h"
#include "media/base/video_frame.h"
void* FakeGlVideoDevice::GetDevice() {
// No actual hardware device should be used.
return NULL;
}
bool FakeGlVideoDevice::CreateVideoFrameFromGlTextures(
size_t width, size_t height, media::VideoFrame::Format format,
const std::vector<media::VideoFrame::GlTexture>& textures,
scoped_refptr<media::VideoFrame>* frame) {
media::VideoFrame::GlTexture texture_array[media::VideoFrame::kMaxPlanes];
memset(texture_array, 0, sizeof(texture_array));
for (size_t i = 0; i < textures.size(); ++i) {
texture_array[i] = textures[i];
}
media::VideoFrame::CreateFrameGlTexture(format,
width,
height,
texture_array,
base::TimeDelta(),
base::TimeDelta(),
frame);
return *frame != NULL;
}
void FakeGlVideoDevice::ReleaseVideoFrame(
const scoped_refptr<media::VideoFrame>& frame) {
// We didn't need to anything here because we didin't allocate any resources
// for the VideoFrame(s) generated.
}
bool FakeGlVideoDevice::UploadToVideoFrame(
void* buffer, scoped_refptr<media::VideoFrame> frame) {
// Assume we are in the right context and then upload the content to the
// texture.
glBindTexture(GL_TEXTURE_2D,
frame->gl_texture(media::VideoFrame::kRGBPlane));
// |buffer| is also a VideoFrame.
scoped_refptr<media::VideoFrame> frame_to_upload(
reinterpret_cast<media::VideoFrame*>(buffer));
DCHECK_EQ(frame->width(), frame_to_upload->width());
DCHECK_EQ(frame->height(), frame_to_upload->height());
DCHECK_EQ(frame->format(), frame_to_upload->format());
glTexImage2D(
GL_TEXTURE_2D, 0, GL_RGBA, frame_to_upload->width(),
frame_to_upload->height(), 0, GL_RGBA,
GL_UNSIGNED_BYTE, frame_to_upload->data(media::VideoFrame::kRGBPlane));
return true;
}
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