SkiaOpenGLPipeline.cpp revision cf2c05c652190ddc66f873192c17d193478138a1 
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 "SkiaOpenGLPipeline.h"
18
19#include "DeferredLayerUpdater.h"
20#include "renderthread/EglManager.h"
21#include "renderstate/RenderState.h"
22#include "Readback.h"
23#include "SkiaPipeline.h"
24#include "SkiaProfileRenderer.h"
25#include "utils/TraceUtils.h"
26
27#include <android/native_window.h>
28#include <cutils/properties.h>
29#include <strings.h>
30
31using namespace android::uirenderer::renderthread;
32
33namespace android {
34namespace uirenderer {
35namespace skiapipeline {
36
37SkiaOpenGLPipeline::SkiaOpenGLPipeline(RenderThread& thread)
38        : SkiaPipeline(thread)
39        , mEglManager(thread.eglManager()) {
40}
41
42MakeCurrentResult SkiaOpenGLPipeline::makeCurrent() {
43    // TODO: Figure out why this workaround is needed, see b/13913604
44    // In the meantime this matches the behavior of GLRenderer, so it is not a regression
45    EGLint error = 0;
46    if (!mEglManager.makeCurrent(mEglSurface, &error)) {
47        return MakeCurrentResult::AlreadyCurrent;
48    }
49    return error ? MakeCurrentResult::Failed : MakeCurrentResult::Succeeded;
50}
51
52Frame SkiaOpenGLPipeline::getFrame() {
53    LOG_ALWAYS_FATAL_IF(mEglSurface == EGL_NO_SURFACE,
54                "drawRenderNode called on a context with no surface!");
55    return mEglManager.beginFrame(mEglSurface);
56}
57
58bool SkiaOpenGLPipeline::draw(const Frame& frame, const SkRect& screenDirty,
59        const SkRect& dirty,
60        const FrameBuilder::LightGeometry& lightGeometry,
61        LayerUpdateQueue* layerUpdateQueue,
62        const Rect& contentDrawBounds, bool opaque,
63        const BakedOpRenderer::LightInfo& lightInfo,
64        const std::vector<sp<RenderNode>>& renderNodes,
65        FrameInfoVisualizer* profiler) {
66
67    mEglManager.damageFrame(frame, dirty);
68
69    // setup surface for fbo0
70    GrBackendRenderTargetDesc renderTargetDesc;
71    renderTargetDesc.fWidth = frame.width();
72    renderTargetDesc.fHeight = frame.height();
73    renderTargetDesc.fConfig = kRGBA_8888_GrPixelConfig;
74    renderTargetDesc.fOrigin = kBottomLeft_GrSurfaceOrigin;
75    renderTargetDesc.fSampleCnt = 0;
76    renderTargetDesc.fStencilBits = STENCIL_BUFFER_SIZE;
77    renderTargetDesc.fRenderTargetHandle = 0;
78
79    SkSurfaceProps props(0, kUnknown_SkPixelGeometry);
80
81    SkASSERT(mRenderThread.getGrContext() != nullptr);
82    sk_sp<SkSurface> surface(SkSurface::MakeFromBackendRenderTarget(
83            mRenderThread.getGrContext(), renderTargetDesc, &props));
84
85    SkiaPipeline::updateLighting(lightGeometry, lightInfo);
86    renderFrame(*layerUpdateQueue, dirty, renderNodes, opaque, contentDrawBounds, surface);
87    layerUpdateQueue->clear();
88
89    // Draw visual debugging features
90    if (CC_UNLIKELY(Properties::showDirtyRegions
91            || ProfileType::None == Properties::getProfileType())) {
92        SkCanvas* profileCanvas = surface->getCanvas();
93        SkiaProfileRenderer profileRenderer(profileCanvas);
94        profiler->draw(profileRenderer);
95        profileCanvas->flush();
96    }
97
98    return true;
99}
100
101bool SkiaOpenGLPipeline::swapBuffers(const Frame& frame, bool drew,
102        const SkRect& screenDirty, FrameInfo* currentFrameInfo, bool* requireSwap) {
103
104    GL_CHECKPOINT(LOW);
105
106    // Even if we decided to cancel the frame, from the perspective of jank
107    // metrics the frame was swapped at this point
108    currentFrameInfo->markSwapBuffers();
109
110    *requireSwap = drew || mEglManager.damageRequiresSwap();
111
112    if (*requireSwap && (CC_UNLIKELY(!mEglManager.swapBuffers(frame, screenDirty)))) {
113        return false;
114    }
115
116    return *requireSwap;
117}
118
119bool SkiaOpenGLPipeline::copyLayerInto(DeferredLayerUpdater* layer, SkBitmap* bitmap) {
120    layer->apply();
121    return Readback::copyTextureLayerInto(mRenderThread, *(layer->backingLayer()), bitmap)
122            == CopyResult::Success;
123}
124
125DeferredLayerUpdater* SkiaOpenGLPipeline::createTextureLayer() {
126    mEglManager.initialize();
127    Layer* layer = new Layer(mRenderThread.renderState(), 0, 0);
128    layer->generateTexture();
129    return new DeferredLayerUpdater(layer);
130}
131
132void SkiaOpenGLPipeline::onStop() {
133    if (mEglManager.isCurrent(mEglSurface)) {
134        mEglManager.makeCurrent(EGL_NO_SURFACE);
135    }
136}
137
138bool SkiaOpenGLPipeline::setSurface(Surface* surface, SwapBehavior swapBehavior) {
139
140    if (mEglSurface != EGL_NO_SURFACE) {
141        mEglManager.destroySurface(mEglSurface);
142        mEglSurface = EGL_NO_SURFACE;
143    }
144
145    if (surface) {
146        mEglSurface = mEglManager.createSurface(surface);
147    }
148
149    if (mEglSurface != EGL_NO_SURFACE) {
150        const bool preserveBuffer = (swapBehavior != SwapBehavior::kSwap_discardBuffer);
151        mBufferPreserved = mEglManager.setPreserveBuffer(mEglSurface, preserveBuffer);
152        return true;
153    }
154
155    return false;
156}
157
158bool SkiaOpenGLPipeline::isSurfaceReady() {
159    return CC_UNLIKELY(mEglSurface != EGL_NO_SURFACE);
160}
161
162bool SkiaOpenGLPipeline::isContextReady() {
163    return CC_LIKELY(mEglManager.hasEglContext());
164}
165
166void SkiaOpenGLPipeline::invokeFunctor(const RenderThread& thread, Functor* functor) {
167    DrawGlInfo::Mode mode = DrawGlInfo::kModeProcessNoContext;
168    if (thread.eglManager().hasEglContext()) {
169        mode = DrawGlInfo::kModeProcess;
170    }
171
172    (*functor)(mode, nullptr);
173
174    // If there's no context we don't need to reset as there's no gl state to save/restore
175    if (mode != DrawGlInfo::kModeProcessNoContext) {
176        thread.getGrContext()->resetContext();
177    }
178}
179
180} /* namespace skiapipeline */
181} /* namespace uirenderer */
182} /* namespace android */
183