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 3 // found in the LICENSE file. 4 5 #include "content/browser/compositor/software_output_device_x11.h" 6 7 #include <X11/Xlib.h> 8 #include <X11/Xutil.h> 9 10 #include "content/public/browser/browser_thread.h" 11 #include "third_party/skia/include/core/SkBitmap.h" 12 #include "third_party/skia/include/core/SkDevice.h" 13 #include "ui/base/x/x11_util.h" 14 #include "ui/base/x/x11_util_internal.h" 15 #include "ui/compositor/compositor.h" 16 #include "ui/gfx/x/x11_types.h" 17 18 namespace content { 19 20 SoftwareOutputDeviceX11::SoftwareOutputDeviceX11(ui::Compositor* compositor) 21 : compositor_(compositor), display_(gfx::GetXDisplay()), gc_(NULL) { 22 // TODO(skaslev) Remove this when crbug.com/180702 is fixed. 23 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); 24 25 gc_ = XCreateGC(display_, compositor_->widget(), 0, NULL); 26 if (!XGetWindowAttributes(display_, compositor_->widget(), &attributes_)) { 27 LOG(ERROR) << "XGetWindowAttributes failed for window " 28 << compositor_->widget(); 29 return; 30 } 31 } 32 33 SoftwareOutputDeviceX11::~SoftwareOutputDeviceX11() { 34 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); 35 36 XFreeGC(display_, gc_); 37 } 38 39 void SoftwareOutputDeviceX11::EndPaint(cc::SoftwareFrameData* frame_data) { 40 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); 41 DCHECK(canvas_); 42 DCHECK(frame_data); 43 44 if (!canvas_) 45 return; 46 47 SoftwareOutputDevice::EndPaint(frame_data); 48 49 gfx::Rect rect = damage_rect_; 50 rect.Intersect(gfx::Rect(viewport_pixel_size_)); 51 if (rect.IsEmpty()) 52 return; 53 54 int bpp = gfx::BitsPerPixelForPixmapDepth(display_, attributes_.depth); 55 56 if (bpp != 32 && bpp != 16 && ui::QueryRenderSupport(display_)) { 57 // gfx::PutARGBImage only supports 16 and 32 bpp, but Xrender can do other 58 // conversions. 59 Pixmap pixmap = XCreatePixmap( 60 display_, compositor_->widget(), rect.width(), rect.height(), 32); 61 GC gc = XCreateGC(display_, pixmap, 0, NULL); 62 XImage image; 63 memset(&image, 0, sizeof(image)); 64 65 SkImageInfo info; 66 size_t rowBytes; 67 const void* addr = canvas_->peekPixels(&info, &rowBytes); 68 image.width = viewport_pixel_size_.width(); 69 image.height = viewport_pixel_size_.height(); 70 image.depth = 32; 71 image.bits_per_pixel = 32; 72 image.format = ZPixmap; 73 image.byte_order = LSBFirst; 74 image.bitmap_unit = 8; 75 image.bitmap_bit_order = LSBFirst; 76 image.bytes_per_line = rowBytes; 77 image.red_mask = 0xff; 78 image.green_mask = 0xff00; 79 image.blue_mask = 0xff0000; 80 image.data = const_cast<char*>(static_cast<const char*>(addr)); 81 82 XPutImage(display_, 83 pixmap, 84 gc, 85 &image, 86 rect.x(), 87 rect.y() /* source x, y */, 88 0, 89 0 /* dest x, y */, 90 rect.width(), 91 rect.height()); 92 XFreeGC(display_, gc); 93 Picture picture = XRenderCreatePicture( 94 display_, pixmap, ui::GetRenderARGB32Format(display_), 0, NULL); 95 XRenderPictFormat* pictformat = 96 XRenderFindVisualFormat(display_, attributes_.visual); 97 Picture dest_picture = XRenderCreatePicture( 98 display_, compositor_->widget(), pictformat, 0, NULL); 99 XRenderComposite(display_, 100 PictOpSrc, // op 101 picture, // src 102 0, // mask 103 dest_picture, // dest 104 0, // src_x 105 0, // src_y 106 0, // mask_x 107 0, // mask_y 108 rect.x(), // dest_x 109 rect.y(), // dest_y 110 rect.width(), // width 111 rect.height()); // height 112 XRenderFreePicture(display_, picture); 113 XRenderFreePicture(display_, dest_picture); 114 XFreePixmap(display_, pixmap); 115 return; 116 } 117 118 // TODO(jbauman): Switch to XShmPutImage since it's async. 119 SkImageInfo info; 120 size_t rowBytes; 121 const void* addr = canvas_->peekPixels(&info, &rowBytes); 122 gfx::PutARGBImage(display_, 123 attributes_.visual, 124 attributes_.depth, 125 compositor_->widget(), 126 gc_, 127 static_cast<const uint8*>(addr), 128 viewport_pixel_size_.width(), 129 viewport_pixel_size_.height(), 130 rect.x(), 131 rect.y(), 132 rect.x(), 133 rect.y(), 134 rect.width(), 135 rect.height()); 136 } 137 138 } // namespace content 139
