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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 "media/tools/player_x11/x11_video_renderer.h"
#include <dlfcn.h>
#include <X11/Xutil.h>
#include <X11/extensions/Xrender.h>
#include <X11/extensions/Xcomposite.h>
#include "base/message_loop.h"
#include "media/base/video_frame.h"
#include "media/base/yuv_convert.h"
X11VideoRenderer* X11VideoRenderer::instance_ = NULL;
// Returns the picture format for ARGB.
// This method is originally from chrome/common/x11_util.cc.
static XRenderPictFormat* GetRenderARGB32Format(Display* dpy) {
static XRenderPictFormat* pictformat = NULL;
if (pictformat)
return pictformat;
// First look for a 32-bit format which ignores the alpha value.
XRenderPictFormat templ;
templ.depth = 32;
templ.type = PictTypeDirect;
templ.direct.red = 16;
templ.direct.green = 8;
templ.direct.blue = 0;
templ.direct.redMask = 0xff;
templ.direct.greenMask = 0xff;
templ.direct.blueMask = 0xff;
templ.direct.alphaMask = 0;
static const unsigned long kMask =
PictFormatType | PictFormatDepth |
PictFormatRed | PictFormatRedMask |
PictFormatGreen | PictFormatGreenMask |
PictFormatBlue | PictFormatBlueMask |
PictFormatAlphaMask;
pictformat = XRenderFindFormat(dpy, kMask, &templ, 0 /* first result */);
if (!pictformat) {
// Not all X servers support xRGB32 formats. However, the XRENDER spec
// says that they must support an ARGB32 format, so we can always return
// that.
pictformat = XRenderFindStandardFormat(dpy, PictStandardARGB32);
CHECK(pictformat) << "XRENDER ARGB32 not supported.";
}
return pictformat;
}
X11VideoRenderer::X11VideoRenderer(Display* display, Window window,
MessageLoop* message_loop)
: display_(display),
window_(window),
image_(NULL),
picture_(0),
use_render_(false),
glx_thread_message_loop_(message_loop) {
}
X11VideoRenderer::~X11VideoRenderer() {
}
// static
bool X11VideoRenderer::IsMediaFormatSupported(
const media::MediaFormat& media_format) {
return ParseMediaFormat(media_format, NULL, NULL, NULL, NULL);
}
void X11VideoRenderer::OnStop(media::FilterCallback* callback) {
if (image_) {
XDestroyImage(image_);
}
XRenderFreePicture(display_, picture_);
if (callback) {
callback->Run();
delete callback;
}
}
bool X11VideoRenderer::OnInitialize(media::VideoDecoder* decoder) {
LOG(INFO) << "Initializing X11 Renderer...";
// Resize the window to fit that of the video.
XResizeWindow(display_, window_, width(), height());
// Testing XRender support. We'll use the very basic of XRender
// so if it presents it is already good enough. We don't need
// to check its version.
int dummy;
use_render_ = XRenderQueryExtension(display_, &dummy, &dummy);
if (use_render_) {
// If we are using XRender, we'll create a picture representing the
// window.
XWindowAttributes attr;
XGetWindowAttributes(display_, window_, &attr);
XRenderPictFormat* pictformat = XRenderFindVisualFormat(
display_,
attr.visual);
CHECK(pictformat) << "XRENDER does not support default visual";
picture_ = XRenderCreatePicture(display_, window_, pictformat, 0, NULL);
CHECK(picture_) << "Backing picture not created";
}
// Initialize the XImage to store the output of YUV -> RGB conversion.
image_ = XCreateImage(display_,
DefaultVisual(display_, DefaultScreen(display_)),
DefaultDepth(display_, DefaultScreen(display_)),
ZPixmap,
0,
static_cast<char*>(malloc(width() * height() * 4)),
width(),
height(),
32,
width() * 4);
DCHECK(image_);
// Save this instance.
DCHECK(!instance_);
instance_ = this;
return true;
}
void X11VideoRenderer::OnFrameAvailable() {
if (glx_thread_message_loop()) {
glx_thread_message_loop()->PostTask(FROM_HERE,
NewRunnableMethod(this, &X11VideoRenderer::Paint));
}
}
void X11VideoRenderer::Paint() {
scoped_refptr<media::VideoFrame> video_frame;
GetCurrentFrame(&video_frame);
if (!image_ || !video_frame) {
// TODO(jiesun): Use color fill rather than create black frame then scale.
PutCurrentFrame(video_frame);
return;
}
// Convert YUV frame to RGB.
DCHECK(video_frame->format() == media::VideoFrame::YV12 ||
video_frame->format() == media::VideoFrame::YV16);
DCHECK(video_frame->stride(media::VideoFrame::kUPlane) ==
video_frame->stride(media::VideoFrame::kVPlane));
DCHECK(video_frame->planes() == media::VideoFrame::kNumYUVPlanes);
DCHECK(image_->data);
media::YUVType yuv_type =
(video_frame->format() == media::VideoFrame::YV12) ?
media::YV12 : media::YV16;
media::ConvertYUVToRGB32(video_frame->data(media::VideoFrame::kYPlane),
video_frame->data(media::VideoFrame::kUPlane),
video_frame->data(media::VideoFrame::kVPlane),
(uint8*)image_->data,
video_frame->width(),
video_frame->height(),
video_frame->stride(media::VideoFrame::kYPlane),
video_frame->stride(media::VideoFrame::kUPlane),
image_->bytes_per_line,
yuv_type);
PutCurrentFrame(video_frame);
if (use_render_) {
// If XRender is used, we'll upload the image to a pixmap. And then
// creats a picture from the pixmap and composite the picture over
// the picture represending the window.
// Creates a XImage.
XImage image;
memset(&image, 0, sizeof(image));
image.width = width();
image.height = height();
image.depth = 32;
image.bits_per_pixel = 32;
image.format = ZPixmap;
image.byte_order = LSBFirst;
image.bitmap_unit = 8;
image.bitmap_bit_order = LSBFirst;
image.bytes_per_line = image_->bytes_per_line;
image.red_mask = 0xff;
image.green_mask = 0xff00;
image.blue_mask = 0xff0000;
image.data = image_->data;
// Creates a pixmap and uploads from the XImage.
unsigned long pixmap = XCreatePixmap(display_,
window_,
width(),
height(),
32);
GC gc = XCreateGC(display_, pixmap, 0, NULL);
XPutImage(display_, pixmap, gc, &image,
0, 0, 0, 0,
width(), height());
XFreeGC(display_, gc);
// Creates the picture representing the pixmap.
unsigned long picture = XRenderCreatePicture(
display_, pixmap, GetRenderARGB32Format(display_), 0, NULL);
// Composite the picture over the picture representing the window.
XRenderComposite(display_, PictOpSrc, picture, 0,
picture_, 0, 0, 0, 0, 0, 0,
width(), height());
XRenderFreePicture(display_, picture);
XFreePixmap(display_, pixmap);
return;
}
// If XRender is not used, simply put the image to the server.
// This will have a tearing effect but this is OK.
// TODO(hclam): Upload the image to a pixmap and do XCopyArea()
// to the window.
GC gc = XCreateGC(display_, window_, 0, NULL);
XPutImage(display_, window_, gc, image_,
0, 0, 0, 0, width(), height());
XFlush(display_);
XFreeGC(display_, gc);
}
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