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| 1 // Copyright 2016 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 "media/remoting/remoting_interstitial_ui.h" | |
| 6 | |
| 7 #include <algorithm> // for std::max() | |
| 8 | |
| 9 #include "media/base/media_resources.h" | |
| 10 #include "media/base/video_frame.h" | |
| 11 #include "media/base/video_renderer_sink.h" | |
| 12 #include "media/base/video_util.h" | |
| 13 #include "skia/ext/image_operations.h" | |
| 14 #include "third_party/skia/include/core/SkCanvas.h" | |
| 15 #include "third_party/skia/include/core/SkTypeface.h" | |
| 16 #include "third_party/skia/include/effects/SkBlurImageFilter.h" | |
| 17 #include "ui/gfx/color_palette.h" | |
| 18 #include "ui/gfx/geometry/size.h" | |
| 19 #include "ui/gfx/paint_vector_icon.h" | |
| 20 #include "ui/gfx/skbitmap_operations.h" | |
| 21 #include "ui/gfx/vector_icons_public.h" | |
| 22 | |
| 23 namespace media { | |
| 24 | |
| 25 namespace { | |
| 26 | |
| 27 // The interstitial frame size when |background_image| is empty or has low | |
| 28 // resolution. The frame height may be adjusted according to the aspect ratio of | |
| 29 // |natural_size|. | |
| 30 constexpr int kDefaultFrameWidth = 1280; | |
| 31 constexpr int kDefaultFrameHeight = 720; | |
| 32 | |
| 33 SkBitmap ResizeImage(const SkBitmap& image, const gfx::Size& scaled_size) { | |
| 34 DCHECK(!scaled_size.IsEmpty()); | |
| 35 | |
| 36 if (image.width() == scaled_size.width() && | |
| 37 image.height() == scaled_size.height()) | |
| 38 return image; | |
| 39 | |
| 40 return skia::ImageOperations::Resize( | |
| 41 image, skia::ImageOperations::RESIZE_BEST, scaled_size.width(), | |
| 42 scaled_size.height()); | |
| 43 } | |
| 44 | |
| 45 void RenderCastMessage(const gfx::Size& canvas_size, | |
| 46 RemotingInterstitialType type, | |
| 47 SkCanvas* canvas) { | |
| 48 DCHECK(canvas); | |
| 49 if (type == RemotingInterstitialType::BETWEEN_SESSIONS) | |
| 50 return; | |
| 51 | |
| 52 // Blur the background image. | |
| 53 SkScalar sigma = SkDoubleToScalar(10); | |
| 54 SkPaint paint_blur; | |
| 55 paint_blur.setImageFilter(SkBlurImageFilter::Make(sigma, sigma, nullptr)); | |
| 56 canvas->saveLayer(0, &paint_blur); | |
| 57 canvas->restore(); | |
| 58 | |
| 59 // Create SkPaint for text and icon bitmap. | |
| 60 // After |paint| draws, the new canvas should look like this: | |
| 61 // _________________________________ | |
| 62 // | | | |
| 63 // | | | |
| 64 // | [ ] | | |
| 65 // | Casting Video... | | |
| 66 // | | | |
| 67 // |________________________________| | |
| 68 // | |
| 69 // Both text and icon are centered horizontally. Together, they are | |
| 70 // centered vertically. | |
| 71 SkPaint paint; | |
| 72 int text_size = SkIntToScalar(canvas_size.height() / 18); | |
| 73 paint.setAntiAlias(true); | |
| 74 paint.setFilterQuality(kHigh_SkFilterQuality); | |
| 75 paint.setColor(SK_ColorLTGRAY); | |
| 76 paint.setTypeface(SkTypeface::MakeFromName( | |
| 77 "sans", SkFontStyle::FromOldStyle(SkTypeface::kNormal))); | |
| 78 paint.setTextSize(text_size); | |
| 79 | |
| 80 // Draw the appropriate text. | |
| 81 const std::string remote_playback_message = | |
| 82 (type == RemotingInterstitialType::IN_SESSION | |
| 83 ? GetLocalizedStringUTF8(MEDIA_REMOTING_CASTING_VIDEO_TEXT) | |
| 84 : GetLocalizedStringUTF8(MEDIA_REMOTING_CAST_ERROR_TEXT)); | |
| 85 size_t display_text_width = paint.measureText(remote_playback_message.data(), | |
| 86 remote_playback_message.size()); | |
| 87 SkScalar sk_text_offset_x = (canvas_size.width() - display_text_width) / 2.0; | |
| 88 SkScalar sk_text_offset_y = (canvas_size.height() / 2.0) + text_size; | |
| 89 canvas->drawText(remote_playback_message.data(), | |
| 90 remote_playback_message.size(), sk_text_offset_x, | |
| 91 sk_text_offset_y, paint); | |
| 92 | |
| 93 // Draw the appropriate Cast icon. | |
| 94 gfx::VectorIconId current_icon = | |
| 95 (type == RemotingInterstitialType::IN_SESSION | |
| 96 ? gfx::VectorIconId::MEDIA_ROUTER_ACTIVE | |
| 97 : gfx::VectorIconId::MEDIA_ROUTER_WARNING); | |
| 98 gfx::ImageSkia icon_image = gfx::CreateVectorIcon( | |
| 99 current_icon, canvas_size.height() / 6, SK_ColorLTGRAY); | |
| 100 const SkBitmap* icon_bitmap = icon_image.bitmap(); | |
| 101 SkScalar sk_image_offset_x = (canvas_size.width() - icon_image.width()) / 2.0; | |
| 102 SkScalar sk_image_offset_y = | |
| 103 (canvas_size.height() / 2.0) - icon_image.height(); | |
| 104 canvas->drawBitmap(*icon_bitmap, sk_image_offset_x, sk_image_offset_y, | |
| 105 &paint); | |
| 106 } | |
| 107 | |
| 108 gfx::Size GetCanvasSize(const gfx::Size& image_size, | |
| 109 const gfx::Size& natural_size) { | |
| 110 int width = std::max(image_size.width(), kDefaultFrameWidth) & ~1; | |
| 111 base::CheckedNumeric<int> height = width; | |
| 112 height *= natural_size.height(); | |
| 113 height /= natural_size.width(); | |
| 114 height &= ~1; | |
| 115 gfx::Size result = gfx::Size(width, height.ValueOrDefault(0)); | |
| 116 return result.IsEmpty() ? gfx::Size(kDefaultFrameWidth, kDefaultFrameHeight) | |
| 117 : result; | |
| 118 } | |
| 119 | |
| 120 scoped_refptr<VideoFrame> RenderInterstitialFrame( | |
| 121 const SkBitmap& image, | |
| 122 const gfx::Size& natural_size, | |
| 123 RemotingInterstitialType type) { | |
| 124 gfx::Size canvas_size = | |
| 125 GetCanvasSize(gfx::Size(image.width(), image.height()), natural_size); | |
| 126 SkBitmap canvas_bitmap; | |
| 127 canvas_bitmap.allocN32Pixels(canvas_size.width(), canvas_size.height()); | |
| 128 canvas_bitmap.eraseColor(SK_ColorBLACK); | |
| 129 SkCanvas canvas(canvas_bitmap); | |
| 130 | |
| 131 // Draw background image on the canvas. | |
| 132 if (!image.drawsNothing()) { | |
| 133 gfx::Rect centered_rect = ComputeLetterboxRegion( | |
| 134 gfx::Rect(canvas_size), gfx::Size(image.width(), image.height())); | |
| 135 SkBitmap processed_image = ResizeImage(image, centered_rect.size()); | |
| 136 if (type != RemotingInterstitialType::BETWEEN_SESSIONS) { | |
| 137 color_utils::HSL shift = {-1, 0, 0.2}; // Make monochromatic. | |
| 138 processed_image = | |
| 139 SkBitmapOperations::CreateHSLShiftedBitmap(processed_image, shift); | |
| 140 } | |
| 141 canvas.writePixels(processed_image, centered_rect.x(), centered_rect.y()); | |
| 142 } | |
| 143 | |
| 144 RenderCastMessage(canvas_size, type, &canvas); | |
| 145 | |
| 146 // Create a new VideoFrame, copy the bitmap, then return it. | |
| 147 scoped_refptr<media::VideoFrame> video_frame = media::VideoFrame::CreateFrame( | |
| 148 media::PIXEL_FORMAT_I420, canvas_size, gfx::Rect(canvas_size), | |
| 149 canvas_size, base::TimeDelta()); | |
| 150 canvas_bitmap.lockPixels(); | |
| 151 media::CopyRGBToVideoFrame( | |
| 152 reinterpret_cast<uint8_t*>(canvas_bitmap.getPixels()), | |
| 153 canvas_bitmap.rowBytes(), | |
| 154 gfx::Rect(canvas_size.width(), canvas_size.height()), video_frame.get()); | |
| 155 canvas_bitmap.unlockPixels(); | |
| 156 return video_frame; | |
| 157 } | |
| 158 | |
| 159 } // namespace | |
| 160 | |
| 161 void PaintRemotingInterstitial(const SkBitmap& image, | |
| 162 const gfx::Size& natural_size, | |
| 163 RemotingInterstitialType interstitial_type, | |
| 164 VideoRendererSink* video_renderer_sink) { | |
| 165 if (!video_renderer_sink) | |
| 166 return; | |
| 167 | |
| 168 const scoped_refptr<VideoFrame> interstitial = | |
| 169 RenderInterstitialFrame(image, natural_size, interstitial_type); | |
| 170 | |
| 171 video_renderer_sink->PaintSingleFrame(interstitial); | |
| 172 } | |
| 173 | |
| 174 } // namespace media | |
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Chromium Code Reviews
Issue 2643253003:
Media Remoting Clean-up: Less-redundant naming, style consistency, etc. (Closed)
