OpenGLPipeline.cpp revision daf7229047c44947b9b02ee187fe5b13f30ebd4b 
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 "OpenGLPipeline.h"
18
19#include "DeferredLayerUpdater.h"
20#include "EglManager.h"
21#include "ProfileRenderer.h"
22#include "renderstate/RenderState.h"
23#include "Readback.h"
24
25#include <android/native_window.h>
26#include <cutils/properties.h>
27#include <strings.h>
28
29namespace android {
30namespace uirenderer {
31namespace renderthread {
32
33OpenGLPipeline::OpenGLPipeline(RenderThread& thread)
34        :  mEglManager(thread.eglManager()), mRenderThread(thread) {
35}
36
37MakeCurrentResult OpenGLPipeline::makeCurrent() {
38    // TODO: Figure out why this workaround is needed, see b/13913604
39    // In the meantime this matches the behavior of GLRenderer, so it is not a regression
40    EGLint error = 0;
41    bool haveNewSurface = mEglManager.makeCurrent(mEglSurface, &error);
42
43    Caches::getInstance().textureCache.resetMarkInUse(this);
44    if (!haveNewSurface) {
45        return MakeCurrentResult::AlreadyCurrent;
46    }
47    return error ? MakeCurrentResult::Failed : MakeCurrentResult::Succeeded;
48}
49
50Frame OpenGLPipeline::getFrame() {
51    LOG_ALWAYS_FATAL_IF(mEglSurface == EGL_NO_SURFACE,
52                "drawRenderNode called on a context with no surface!");
53    return mEglManager.beginFrame(mEglSurface);
54}
55
56bool OpenGLPipeline::draw(const Frame& frame, const SkRect& screenDirty, const SkRect& dirty,
57        const FrameBuilder::LightGeometry& lightGeometry,
58        LayerUpdateQueue* layerUpdateQueue,
59        const Rect& contentDrawBounds, bool opaque,
60        const BakedOpRenderer::LightInfo& lightInfo,
61        const std::vector< sp<RenderNode> >& renderNodes,
62        FrameInfoVisualizer* profiler) {
63
64    mEglManager.damageFrame(frame, dirty);
65
66    bool drew = false;
67
68
69    auto& caches = Caches::getInstance();
70    FrameBuilder frameBuilder(dirty, frame.width(), frame.height(), lightGeometry, caches);
71
72    frameBuilder.deferLayers(*layerUpdateQueue);
73    layerUpdateQueue->clear();
74
75    frameBuilder.deferRenderNodeScene(renderNodes, contentDrawBounds);
76
77    BakedOpRenderer renderer(caches, mRenderThread.renderState(),
78            opaque, lightInfo);
79    frameBuilder.replayBakedOps<BakedOpDispatcher>(renderer);
80    ProfileRenderer profileRenderer(renderer);
81    profiler->draw(profileRenderer);
82    drew = renderer.didDraw();
83
84    // post frame cleanup
85    caches.clearGarbage();
86    caches.pathCache.trim();
87    caches.tessellationCache.trim();
88
89#if DEBUG_MEMORY_USAGE
90    mCaches.dumpMemoryUsage();
91#else
92    if (CC_UNLIKELY(Properties::debugLevel & kDebugMemory)) {
93        caches.dumpMemoryUsage();
94    }
95#endif
96
97    return drew;
98}
99
100bool OpenGLPipeline::swapBuffers(const Frame& frame, bool drew, const SkRect& screenDirty,
101        FrameInfo* currentFrameInfo, bool* requireSwap) {
102
103    GL_CHECKPOINT(LOW);
104
105    // Even if we decided to cancel the frame, from the perspective of jank
106    // metrics the frame was swapped at this point
107    currentFrameInfo->markSwapBuffers();
108
109    *requireSwap = drew || mEglManager.damageRequiresSwap();
110
111    if (*requireSwap && (CC_UNLIKELY(!mEglManager.swapBuffers(frame, screenDirty)))) {
112        return false;
113    }
114
115    return *requireSwap;
116}
117
118bool OpenGLPipeline::copyLayerInto(DeferredLayerUpdater* layer, SkBitmap* bitmap) {
119    layer->apply();
120    return Readback::copyTextureLayerInto(mRenderThread, *(layer->backingLayer()), bitmap)
121            == CopyResult::Success;
122}
123
124DeferredLayerUpdater* OpenGLPipeline::createTextureLayer() {
125    mEglManager.initialize();
126    Layer* layer = new Layer(mRenderThread.renderState(), 0, 0);
127    Caches::getInstance().textureState().activateTexture(0);
128    layer->generateTexture();
129
130    return new DeferredLayerUpdater(layer);
131}
132
133void OpenGLPipeline::onStop() {
134    if (mEglManager.isCurrent(mEglSurface)) {
135        mEglManager.makeCurrent(EGL_NO_SURFACE);
136    }
137}
138
139bool OpenGLPipeline::setSurface(Surface* surface, SwapBehavior swapBehavior) {
140
141    if (mEglSurface != EGL_NO_SURFACE) {
142        mEglManager.destroySurface(mEglSurface);
143        mEglSurface = EGL_NO_SURFACE;
144    }
145
146    if (surface) {
147        mEglSurface = mEglManager.createSurface(surface);
148    }
149
150    if (mEglSurface != EGL_NO_SURFACE) {
151        const bool preserveBuffer = (swapBehavior != SwapBehavior::kSwap_discardBuffer);
152        mBufferPreserved = mEglManager.setPreserveBuffer(mEglSurface, preserveBuffer);
153        return true;
154    }
155
156    return false;
157}
158
159bool OpenGLPipeline::isSurfaceReady() {
160    return CC_UNLIKELY(mEglSurface != EGL_NO_SURFACE);
161}
162
163bool OpenGLPipeline::isContextReady() {
164    return CC_LIKELY(mEglManager.hasEglContext());
165}
166
167void OpenGLPipeline::onDestroyHardwareResources() {
168    Caches& caches = Caches::getInstance();
169    // Make sure to release all the textures we were owning as there won't
170    // be another draw
171    caches.textureCache.resetMarkInUse(this);
172    mRenderThread.renderState().flush(Caches::FlushMode::Layers);
173}
174
175void OpenGLPipeline::renderLayers(const FrameBuilder::LightGeometry& lightGeometry,
176        LayerUpdateQueue* layerUpdateQueue, bool opaque,
177        const BakedOpRenderer::LightInfo& lightInfo) {
178    static const std::vector< sp<RenderNode> > emptyNodeList;
179    auto& caches = Caches::getInstance();
180    FrameBuilder frameBuilder(*layerUpdateQueue, lightGeometry, caches);
181    layerUpdateQueue->clear();
182    BakedOpRenderer renderer(caches, mRenderThread.renderState(),
183            opaque, lightInfo);
184    LOG_ALWAYS_FATAL_IF(renderer.didDraw(), "shouldn't draw in buildlayer case");
185    frameBuilder.replayBakedOps<BakedOpDispatcher>(renderer);
186}
187
188TaskManager* OpenGLPipeline::getTaskManager() {
189    return &Caches::getInstance().tasks;
190}
191
192static bool layerMatchesWH(OffscreenBuffer* layer, int width, int height) {
193    return layer->viewportWidth == (uint32_t)width && layer->viewportHeight == (uint32_t)height;
194}
195
196bool OpenGLPipeline::createOrUpdateLayer(RenderNode* node,
197        const DamageAccumulator& damageAccumulator) {
198    RenderState& renderState = mRenderThread.renderState();
199    OffscreenBufferPool& layerPool = renderState.layerPool();
200    bool transformUpdateNeeded = false;
201    if (node->getLayer() == nullptr) {
202        node->setLayer(layerPool.get(renderState, node->getWidth(), node->getHeight()));
203        transformUpdateNeeded = true;
204    } else if (!layerMatchesWH(node->getLayer(), node->getWidth(), node->getHeight())) {
205        // TODO: remove now irrelevant, currently enqueued damage (respecting damage ordering)
206        // Or, ideally, maintain damage between frames on node/layer so ordering is always correct
207        if (node->properties().fitsOnLayer()) {
208            node->setLayer(layerPool.resize(node->getLayer(), node->getWidth(), node->getHeight()));
209        } else {
210            destroyLayer(node);
211        }
212        transformUpdateNeeded = true;
213    }
214
215    if (transformUpdateNeeded && node->getLayer()) {
216        // update the transform in window of the layer to reset its origin wrt light source position
217        Matrix4 windowTransform;
218        damageAccumulator.computeCurrentTransform(&windowTransform);
219        node->getLayer()->setWindowTransform(windowTransform);
220    }
221
222    return transformUpdateNeeded;
223}
224
225void OpenGLPipeline::destroyLayer(RenderNode* node) {
226    if (OffscreenBuffer* layer = node->getLayer()) {
227        layer->renderState.layerPool().putOrDelete(layer);
228        node->setLayer(nullptr);
229    }
230}
231
232void OpenGLPipeline::prepareToDraw(const RenderThread& thread, Bitmap* bitmap) {
233    if (Caches::hasInstance() && thread.eglManager().hasEglContext()) {
234        ATRACE_NAME("Bitmap#prepareToDraw task");
235        Caches::getInstance().textureCache.prefetch(bitmap);
236    }
237}
238
239void OpenGLPipeline::invokeFunctor(const RenderThread& thread, Functor* functor) {
240    DrawGlInfo::Mode mode = DrawGlInfo::kModeProcessNoContext;
241    if (thread.eglManager().hasEglContext()) {
242        mode = DrawGlInfo::kModeProcess;
243    }
244    thread.renderState().invokeFunctor(functor, mode, nullptr);
245}
246
247} /* namespace renderthread */
248} /* namespace uirenderer */
249} /* namespace android */
250