SkiaPipeline.cpp revision e92d4045ebea6bb0491f8f9de0fcf051598d9563
1/* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#include "SkiaPipeline.h" 18 19#include "utils/TraceUtils.h" 20#include <SkOSFile.h> 21#include <SkPicture.h> 22#include <SkPictureRecorder.h> 23#include <SkPixelSerializer.h> 24#include <SkStream.h> 25 26using namespace android::uirenderer::renderthread; 27 28namespace android { 29namespace uirenderer { 30namespace skiapipeline { 31 32float SkiaPipeline::mLightRadius = 0; 33uint8_t SkiaPipeline::mAmbientShadowAlpha = 0; 34uint8_t SkiaPipeline::mSpotShadowAlpha = 0; 35 36Vector3 SkiaPipeline::mLightCenter = {FLT_MIN, FLT_MIN, FLT_MIN}; 37 38SkiaPipeline::SkiaPipeline(RenderThread& thread) : mRenderThread(thread) { } 39 40TaskManager* SkiaPipeline::getTaskManager() { 41 return &mTaskManager; 42} 43 44void SkiaPipeline::onDestroyHardwareResources() { 45 // No need to flush the caches here. There is a timer 46 // which will flush temporary resources over time. 47} 48 49bool SkiaPipeline::pinImages(std::vector<SkImage*>& mutableImages) { 50 for (SkImage* image : mutableImages) { 51 if (SkImage_pinAsTexture(image, mRenderThread.getGrContext())) { 52 mPinnedImages.emplace_back(sk_ref_sp(image)); 53 } else { 54 return false; 55 } 56 } 57 return true; 58} 59 60void SkiaPipeline::unpinImages() { 61 for (auto& image : mPinnedImages) { 62 SkImage_unpinAsTexture(image.get(), mRenderThread.getGrContext()); 63 } 64 mPinnedImages.clear(); 65} 66 67void SkiaPipeline::renderLayers(const FrameBuilder::LightGeometry& lightGeometry, 68 LayerUpdateQueue* layerUpdateQueue, bool opaque, 69 const BakedOpRenderer::LightInfo& lightInfo) { 70 updateLighting(lightGeometry, lightInfo); 71 ATRACE_NAME("draw layers"); 72 renderLayersImpl(*layerUpdateQueue, opaque); 73 layerUpdateQueue->clear(); 74} 75 76void SkiaPipeline::renderLayersImpl(const LayerUpdateQueue& layers, bool opaque) { 77 // Render all layers that need to be updated, in order. 78 for (size_t i = 0; i < layers.entries().size(); i++) { 79 RenderNode* layerNode = layers.entries()[i].renderNode; 80 // only schedule repaint if node still on layer - possible it may have been 81 // removed during a dropped frame, but layers may still remain scheduled so 82 // as not to lose info on what portion is damaged 83 if (CC_LIKELY(layerNode->getLayerSurface() != nullptr)) { 84 SkASSERT(layerNode->getLayerSurface()); 85 SkASSERT(layerNode->getDisplayList()->isSkiaDL()); 86 SkiaDisplayList* displayList = (SkiaDisplayList*)layerNode->getDisplayList(); 87 if (!displayList || displayList->isEmpty()) { 88 SkDEBUGF(("%p drawLayers(%s) : missing drawable", this, layerNode->getName())); 89 return; 90 } 91 92 const Rect& layerDamage = layers.entries()[i].damage; 93 94 SkCanvas* layerCanvas = layerNode->getLayerSurface()->getCanvas(); 95 96 int saveCount = layerCanvas->save(); 97 SkASSERT(saveCount == 1); 98 99 layerCanvas->clipRect(layerDamage.toSkRect(), SkRegion::kReplace_Op); 100 101 auto savedLightCenter = mLightCenter; 102 // map current light center into RenderNode's coordinate space 103 layerNode->getSkiaLayer()->inverseTransformInWindow.mapPoint3d(mLightCenter); 104 105 const RenderProperties& properties = layerNode->properties(); 106 const SkRect bounds = SkRect::MakeWH(properties.getWidth(), properties.getHeight()); 107 if (properties.getClipToBounds() && layerCanvas->quickReject(bounds)) { 108 return; 109 } 110 111 layerNode->getSkiaLayer()->hasRenderedSinceRepaint = false; 112 layerCanvas->clear(SK_ColorTRANSPARENT); 113 114 RenderNodeDrawable root(layerNode, layerCanvas, false); 115 root.forceDraw(layerCanvas); 116 layerCanvas->restoreToCount(saveCount); 117 layerCanvas->flush(); 118 mLightCenter = savedLightCenter; 119 } 120 } 121} 122 123bool SkiaPipeline::createOrUpdateLayer(RenderNode* node, 124 const DamageAccumulator& damageAccumulator) { 125 SkSurface* layer = node->getLayerSurface(); 126 if (!layer || layer->width() != node->getWidth() || layer->height() != node->getHeight()) { 127 SkImageInfo info = SkImageInfo::MakeN32Premul(node->getWidth(), node->getHeight()); 128 SkSurfaceProps props(0, kUnknown_SkPixelGeometry); 129 SkASSERT(mRenderThread.getGrContext() != nullptr); 130 node->setLayerSurface( 131 SkSurface::MakeRenderTarget(mRenderThread.getGrContext(), SkBudgeted::kYes, 132 info, 0, &props)); 133 if (node->getLayerSurface()) { 134 // update the transform in window of the layer to reset its origin wrt light source 135 // position 136 Matrix4 windowTransform; 137 damageAccumulator.computeCurrentTransform(&windowTransform); 138 node->getSkiaLayer()->inverseTransformInWindow = windowTransform; 139 } 140 return true; 141 } 142 return false; 143} 144 145void SkiaPipeline::destroyLayer(RenderNode* node) { 146 node->setLayerSurface(nullptr); 147} 148 149void SkiaPipeline::prepareToDraw(const RenderThread& thread, Bitmap* bitmap) { 150 GrContext* context = thread.getGrContext(); 151 if (context) { 152 ATRACE_FORMAT("Bitmap#prepareToDraw %dx%d", bitmap->width(), bitmap->height()); 153 SkBitmap skiaBitmap; 154 bitmap->getSkBitmap(&skiaBitmap); 155 sk_sp<SkImage> image = SkMakeImageFromRasterBitmap(skiaBitmap, kNever_SkCopyPixelsMode); 156 SkImage_pinAsTexture(image.get(), context); 157 SkImage_unpinAsTexture(image.get(), context); 158 } 159} 160 161// Encodes to PNG, unless there is already encoded data, in which case that gets 162// used. 163class PngPixelSerializer : public SkPixelSerializer { 164public: 165 bool onUseEncodedData(const void*, size_t) override { return true; } 166 SkData* onEncode(const SkPixmap& pixmap) override { 167 return SkImageEncoder::EncodeData(pixmap.info(), pixmap.addr(), pixmap.rowBytes(), 168 SkImageEncoder::kPNG_Type, 100); 169 } 170}; 171 172void SkiaPipeline::renderFrame(const LayerUpdateQueue& layers, const SkRect& clip, 173 const std::vector<sp<RenderNode>>& nodes, bool opaque, const Rect &contentDrawBounds, 174 sk_sp<SkSurface> surface) { 175 176 // draw all layers up front 177 renderLayersImpl(layers, opaque); 178 179 // initialize the canvas for the current frame 180 SkCanvas* canvas = surface->getCanvas(); 181 182 std::unique_ptr<SkPictureRecorder> recorder; 183 bool recordingPicture = false; 184 char prop[PROPERTY_VALUE_MAX]; 185 if (skpCaptureEnabled()) { 186 property_get("debug.hwui.capture_frame_as_skp", prop, "0"); 187 recordingPicture = prop[0] != '0' && !sk_exists(prop); 188 if (recordingPicture) { 189 recorder.reset(new SkPictureRecorder()); 190 canvas = recorder->beginRecording(surface->width(), surface->height(), 191 nullptr, SkPictureRecorder::kPlaybackDrawPicture_RecordFlag); 192 } 193 } 194 195 canvas->clipRect(clip, SkRegion::kReplace_Op); 196 197 if (!opaque) { 198 canvas->clear(SK_ColorTRANSPARENT); 199 } 200 201 // If there are multiple render nodes, they are laid out as follows: 202 // #0 - backdrop (content + caption) 203 // #1 - content (positioned at (0,0) and clipped to - its bounds mContentDrawBounds) 204 // #2 - additional overlay nodes 205 // Usually the backdrop cannot be seen since it will be entirely covered by the content. While 206 // resizing however it might become partially visible. The following render loop will crop the 207 // backdrop against the content and draw the remaining part of it. It will then draw the content 208 // cropped to the backdrop (since that indicates a shrinking of the window). 209 // 210 // Additional nodes will be drawn on top with no particular clipping semantics. 211 212 // The bounds of the backdrop against which the content should be clipped. 213 Rect backdropBounds = contentDrawBounds; 214 // Usually the contents bounds should be mContentDrawBounds - however - we will 215 // move it towards the fixed edge to give it a more stable appearance (for the moment). 216 // If there is no content bounds we ignore the layering as stated above and start with 2. 217 int layer = (contentDrawBounds.isEmpty() || nodes.size() == 1) ? 2 : 0; 218 219 for (const sp<RenderNode>& node : nodes) { 220 if (node->nothingToDraw()) continue; 221 222 SkASSERT(node->getDisplayList()->isSkiaDL()); 223 224 int count = canvas->save(); 225 226 if (layer == 0) { 227 const RenderProperties& properties = node->properties(); 228 Rect targetBounds(properties.getLeft(), properties.getTop(), 229 properties.getRight(), properties.getBottom()); 230 // Move the content bounds towards the fixed corner of the backdrop. 231 const int x = targetBounds.left; 232 const int y = targetBounds.top; 233 // Remember the intersection of the target bounds and the intersection bounds against 234 // which we have to crop the content. 235 backdropBounds.set(x, y, x + backdropBounds.getWidth(), y + backdropBounds.getHeight()); 236 backdropBounds.doIntersect(targetBounds); 237 } else if (layer == 1) { 238 // We shift and clip the content to match its final location in the window. 239 const SkRect clip = SkRect::MakeXYWH(contentDrawBounds.left, contentDrawBounds.top, 240 backdropBounds.getWidth(), backdropBounds.getHeight()); 241 const float dx = backdropBounds.left - contentDrawBounds.left; 242 const float dy = backdropBounds.top - contentDrawBounds.top; 243 canvas->translate(dx, dy); 244 // It gets cropped against the bounds of the backdrop to stay inside. 245 canvas->clipRect(clip, SkRegion::kIntersect_Op); 246 } 247 248 RenderNodeDrawable root(node.get(), canvas); 249 root.draw(canvas); 250 canvas->restoreToCount(count); 251 layer++; 252 } 253 254 if (skpCaptureEnabled() && recordingPicture) { 255 sk_sp<SkPicture> picture = recorder->finishRecordingAsPicture(); 256 if (picture->approximateOpCount() > 0) { 257 SkFILEWStream stream(prop); 258 if (stream.isValid()) { 259 PngPixelSerializer serializer; 260 picture->serialize(&stream, &serializer); 261 stream.flush(); 262 SkDebugf("Captured Drawing Output (%d bytes) for frame. %s", stream.bytesWritten(), prop); 263 } 264 } 265 surface->getCanvas()->drawPicture(picture); 266 } 267 268 ATRACE_NAME("flush commands"); 269 canvas->flush(); 270} 271 272void SkiaPipeline::dumpResourceCacheUsage() const { 273 int resources, maxResources; 274 size_t bytes, maxBytes; 275 mRenderThread.getGrContext()->getResourceCacheUsage(&resources, &bytes); 276 mRenderThread.getGrContext()->getResourceCacheLimits(&maxResources, &maxBytes); 277 278 SkString log("Resource Cache Usage:\n"); 279 log.appendf("%8d items out of %d maximum items\n", resources, maxResources); 280 log.appendf("%8zu bytes (%.2f MB) out of %.2f MB maximum\n", 281 bytes, bytes * (1.0f / (1024.0f * 1024.0f)), maxBytes * (1.0f / (1024.0f * 1024.0f))); 282 283 ALOGD("%s", log.c_str()); 284} 285 286} /* namespace skiapipeline */ 287} /* namespace uirenderer */ 288} /* namespace android */ 289