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| 1 /* | |
| 2 * libjingle | |
| 3 * Copyright 2011 Google Inc. | |
| 4 * | |
| 5 * Redistribution and use in source and binary forms, with or without | |
| 6 * modification, are permitted provided that the following conditions are met: | |
| 7 * | |
| 8 * 1. Redistributions of source code must retain the above copyright notice, | |
| 9 * this list of conditions and the following disclaimer. | |
| 10 * 2. Redistributions in binary form must reproduce the above copyright notice, | |
| 11 * this list of conditions and the following disclaimer in the documentation | |
| 12 * and/or other materials provided with the distribution. | |
| 13 * 3. The name of the author may not be used to endorse or promote products | |
| 14 * derived from this software without specific prior written permission. | |
| 15 * | |
| 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
| 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
| 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO | |
| 19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; | |
| 22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
| 23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR | |
| 24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF | |
| 25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 26 */ | |
| 27 | |
| 28 // Implementation of CarbonVideoRenderer | |
| 29 | |
| 30 #include "talk/media/devices/carbonvideorenderer.h" | |
| 31 | |
| 32 #include "talk/media/base/videocommon.h" | |
| 33 #include "talk/media/base/videoframe.h" | |
| 34 #include "webrtc/base/logging.h" | |
| 35 | |
| 36 namespace cricket { | |
| 37 | |
| 38 CarbonVideoRenderer::CarbonVideoRenderer(int x, int y) | |
| 39 : image_width_(0), | |
| 40 image_height_(0), | |
| 41 x_(x), | |
| 42 y_(y), | |
| 43 window_ref_(NULL) { | |
| 44 } | |
| 45 | |
| 46 CarbonVideoRenderer::~CarbonVideoRenderer() { | |
| 47 if (window_ref_) { | |
| 48 DisposeWindow(window_ref_); | |
| 49 } | |
| 50 } | |
| 51 | |
| 52 // Called from the main event loop. All renderering needs to happen on | |
| 53 // the main thread. | |
| 54 OSStatus CarbonVideoRenderer::DrawEventHandler(EventHandlerCallRef handler, | |
| 55 EventRef event, | |
| 56 void* data) { | |
| 57 OSStatus status = noErr; | |
| 58 CarbonVideoRenderer* renderer = static_cast<CarbonVideoRenderer*>(data); | |
| 59 if (renderer != NULL) { | |
| 60 if (!renderer->DrawFrame()) { | |
| 61 LOG(LS_ERROR) << "Failed to draw frame."; | |
| 62 } | |
| 63 } | |
| 64 return status; | |
| 65 } | |
| 66 | |
| 67 bool CarbonVideoRenderer::DrawFrame() { | |
| 68 // Grab the image lock to make sure it is not changed why we'll draw it. | |
| 69 rtc::CritScope cs(&image_crit_); | |
| 70 | |
| 71 if (image_.get() == NULL) { | |
| 72 // Nothing to draw, just return. | |
| 73 return true; | |
| 74 } | |
| 75 int width = image_width_; | |
| 76 int height = image_height_; | |
| 77 CGDataProviderRef provider = | |
| 78 CGDataProviderCreateWithData(NULL, image_.get(), width * height * 4, | |
| 79 NULL); | |
| 80 CGColorSpaceRef color_space_ref = CGColorSpaceCreateDeviceRGB(); | |
| 81 CGBitmapInfo bitmap_info = kCGBitmapByteOrderDefault; | |
| 82 CGColorRenderingIntent rendering_intent = kCGRenderingIntentDefault; | |
| 83 CGImageRef image_ref = CGImageCreate(width, height, 8, 32, width * 4, | |
| 84 color_space_ref, bitmap_info, provider, | |
| 85 NULL, false, rendering_intent); | |
| 86 CGDataProviderRelease(provider); | |
| 87 | |
| 88 if (image_ref == NULL) { | |
| 89 return false; | |
| 90 } | |
| 91 CGContextRef context; | |
| 92 SetPortWindowPort(window_ref_); | |
| 93 if (QDBeginCGContext(GetWindowPort(window_ref_), &context) != noErr) { | |
| 94 CGImageRelease(image_ref); | |
| 95 return false; | |
| 96 } | |
| 97 Rect window_bounds; | |
| 98 GetWindowPortBounds(window_ref_, &window_bounds); | |
| 99 | |
| 100 // Anchor the image to the top left corner. | |
| 101 int x = 0; | |
| 102 int y = window_bounds.bottom - CGImageGetHeight(image_ref); | |
| 103 CGRect dst_rect = CGRectMake(x, y, CGImageGetWidth(image_ref), | |
| 104 CGImageGetHeight(image_ref)); | |
| 105 CGContextDrawImage(context, dst_rect, image_ref); | |
| 106 CGContextFlush(context); | |
| 107 QDEndCGContext(GetWindowPort(window_ref_), &context); | |
| 108 CGImageRelease(image_ref); | |
| 109 return true; | |
| 110 } | |
| 111 | |
| 112 bool CarbonVideoRenderer::SetSize(int width, int height, int reserved) { | |
| 113 if (width != image_width_ || height != image_height_) { | |
| 114 // Grab the image lock while changing its size. | |
| 115 rtc::CritScope cs(&image_crit_); | |
| 116 image_width_ = width; | |
| 117 image_height_ = height; | |
| 118 image_.reset(new uint8_t[width * height * 4]); | |
| 119 memset(image_.get(), 255, width * height * 4); | |
| 120 } | |
| 121 return true; | |
| 122 } | |
| 123 | |
| 124 bool CarbonVideoRenderer::RenderFrame(const VideoFrame* video_frame) { | |
| 125 if (!video_frame) { | |
| 126 return false; | |
| 127 } | |
| 128 { | |
| 129 const VideoFrame* frame = video_frame->GetCopyWithRotationApplied(); | |
| 130 | |
| 131 if (!SetSize(frame->GetWidth(), frame->GetHeight(), 0)) { | |
| 132 return false; | |
| 133 } | |
| 134 | |
| 135 // Grab the image lock so we are not trashing up the image being drawn. | |
| 136 rtc::CritScope cs(&image_crit_); | |
| 137 frame->ConvertToRgbBuffer(cricket::FOURCC_ABGR, | |
| 138 image_.get(), | |
| 139 frame->GetWidth() * frame->GetHeight() * 4, | |
| 140 frame->GetWidth() * 4); | |
| 141 } | |
| 142 | |
| 143 // Trigger a repaint event for the whole window. | |
| 144 Rect bounds; | |
| 145 InvalWindowRect(window_ref_, GetWindowPortBounds(window_ref_, &bounds)); | |
| 146 return true; | |
| 147 } | |
| 148 | |
| 149 bool CarbonVideoRenderer::Initialize() { | |
| 150 OSStatus err; | |
| 151 WindowAttributes attributes = | |
| 152 kWindowStandardDocumentAttributes | | |
| 153 kWindowLiveResizeAttribute | | |
| 154 kWindowFrameworkScaledAttribute | | |
| 155 kWindowStandardHandlerAttribute; | |
| 156 | |
| 157 struct Rect bounds; | |
| 158 bounds.top = y_; | |
| 159 bounds.bottom = 480; | |
| 160 bounds.left = x_; | |
| 161 bounds.right = 640; | |
| 162 err = CreateNewWindow(kDocumentWindowClass, attributes, | |
| 163 &bounds, &window_ref_); | |
| 164 if (!window_ref_ || err != noErr) { | |
| 165 LOG(LS_ERROR) << "CreateNewWindow failed, error code: " << err; | |
| 166 return false; | |
| 167 } | |
| 168 static const EventTypeSpec event_spec = { | |
| 169 kEventClassWindow, | |
| 170 kEventWindowDrawContent | |
| 171 }; | |
| 172 | |
| 173 err = InstallWindowEventHandler( | |
| 174 window_ref_, | |
| 175 NewEventHandlerUPP(CarbonVideoRenderer::DrawEventHandler), | |
| 176 GetEventTypeCount(event_spec), | |
| 177 &event_spec, | |
| 178 this, | |
| 179 NULL); | |
| 180 if (err != noErr) { | |
| 181 LOG(LS_ERROR) << "Failed to install event handler, error code: " << err; | |
| 182 return false; | |
| 183 } | |
| 184 SelectWindow(window_ref_); | |
| 185 ShowWindow(window_ref_); | |
| 186 return true; | |
| 187 } | |
| 188 | |
| 189 } // namespace cricket | |
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Chromium Code Reviews
Issue 1587193006:
Move talk/media to webrtc/media (Closed)
Base URL: https://chromium.googlesource.com/external/webrtc.git@master