SkiaOpenGLPipeline.cpp revision 3e9999bd866fac71c72e6b484a9836c87c328a08 
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 "GlLayer.h"
21#include "LayerDrawable.h"
22#include "renderthread/EglManager.h"
23#include "renderthread/Frame.h"
24#include "renderstate/RenderState.h"
25#include "SkiaPipeline.h"
26#include "SkiaProfileRenderer.h"
27#include "utils/TraceUtils.h"
28
29#include <android/native_window.h>
30#include <cutils/properties.h>
31#include <strings.h>
32
33using namespace android::uirenderer::renderthread;
34
35namespace android {
36namespace uirenderer {
37namespace skiapipeline {
38
39SkiaOpenGLPipeline::SkiaOpenGLPipeline(RenderThread& thread)
40        : SkiaPipeline(thread)
41        , mEglManager(thread.eglManager()) {
42}
43
44MakeCurrentResult SkiaOpenGLPipeline::makeCurrent() {
45    // TODO: Figure out why this workaround is needed, see b/13913604
46    // In the meantime this matches the behavior of GLRenderer, so it is not a regression
47    EGLint error = 0;
48    if (!mEglManager.makeCurrent(mEglSurface, &error)) {
49        return MakeCurrentResult::AlreadyCurrent;
50    }
51    return error ? MakeCurrentResult::Failed : MakeCurrentResult::Succeeded;
52}
53
54Frame SkiaOpenGLPipeline::getFrame() {
55    LOG_ALWAYS_FATAL_IF(mEglSurface == EGL_NO_SURFACE,
56                "drawRenderNode called on a context with no surface!");
57    return mEglManager.beginFrame(mEglSurface);
58}
59
60bool SkiaOpenGLPipeline::draw(const Frame& frame, const SkRect& screenDirty,
61        const SkRect& dirty,
62        const FrameBuilder::LightGeometry& lightGeometry,
63        LayerUpdateQueue* layerUpdateQueue,
64        const Rect& contentDrawBounds, bool opaque,
65        const BakedOpRenderer::LightInfo& lightInfo,
66        const std::vector<sp<RenderNode>>& renderNodes,
67        FrameInfoVisualizer* profiler) {
68
69    mEglManager.damageFrame(frame, dirty);
70
71    // setup surface for fbo0
72    GrBackendRenderTargetDesc renderTargetDesc;
73    renderTargetDesc.fWidth = frame.width();
74    renderTargetDesc.fHeight = frame.height();
75    renderTargetDesc.fConfig = kRGBA_8888_GrPixelConfig;
76    renderTargetDesc.fOrigin = kBottomLeft_GrSurfaceOrigin;
77    renderTargetDesc.fSampleCnt = 0;
78    renderTargetDesc.fStencilBits = STENCIL_BUFFER_SIZE;
79    renderTargetDesc.fRenderTargetHandle = 0;
80
81    SkSurfaceProps props(0, kUnknown_SkPixelGeometry);
82
83    SkASSERT(mRenderThread.getGrContext() != nullptr);
84    sk_sp<SkSurface> surface(SkSurface::MakeFromBackendRenderTarget(
85            mRenderThread.getGrContext(), renderTargetDesc, &props));
86
87    SkiaPipeline::updateLighting(lightGeometry, lightInfo);
88    renderFrame(*layerUpdateQueue, dirty, renderNodes, opaque, contentDrawBounds, surface);
89    layerUpdateQueue->clear();
90
91    // Draw visual debugging features
92    if (CC_UNLIKELY(Properties::showDirtyRegions
93            || ProfileType::None != Properties::getProfileType())) {
94        SkCanvas* profileCanvas = surface->getCanvas();
95        SkiaProfileRenderer profileRenderer(profileCanvas);
96        profiler->draw(profileRenderer);
97        profileCanvas->flush();
98    }
99
100    // Log memory statistics
101    if (CC_UNLIKELY(Properties::debugLevel != kDebugDisabled)) {
102        dumpResourceCacheUsage();
103    }
104
105    return true;
106}
107
108bool SkiaOpenGLPipeline::swapBuffers(const Frame& frame, bool drew,
109        const SkRect& screenDirty, FrameInfo* currentFrameInfo, bool* requireSwap) {
110
111    GL_CHECKPOINT(LOW);
112
113    // Even if we decided to cancel the frame, from the perspective of jank
114    // metrics the frame was swapped at this point
115    currentFrameInfo->markSwapBuffers();
116
117    *requireSwap = drew || mEglManager.damageRequiresSwap();
118
119    if (*requireSwap && (CC_UNLIKELY(!mEglManager.swapBuffers(frame, screenDirty)))) {
120        return false;
121    }
122
123    return *requireSwap;
124}
125
126bool SkiaOpenGLPipeline::copyLayerInto(DeferredLayerUpdater* deferredLayer, SkBitmap* bitmap) {
127    if (!mRenderThread.getGrContext()) {
128        return false;
129    }
130
131    deferredLayer->apply();
132
133    SkCanvas canvas(*bitmap);
134    Layer* layer = deferredLayer->backingLayer();
135    return LayerDrawable::DrawLayer(mRenderThread.getGrContext(), &canvas, layer);
136}
137
138static Layer* createLayer(RenderState& renderState, uint32_t layerWidth, uint32_t layerHeight,
139        SkColorFilter* colorFilter, int alpha, SkBlendMode mode, bool blend) {
140    GlLayer* layer = new GlLayer(renderState, layerWidth, layerHeight, colorFilter, alpha,
141            mode, blend);
142    layer->generateTexture();
143    return layer;
144}
145
146DeferredLayerUpdater* SkiaOpenGLPipeline::createTextureLayer() {
147    mEglManager.initialize();
148    return new DeferredLayerUpdater(mRenderThread.renderState(), createLayer, Layer::Api::OpenGL);
149}
150
151void SkiaOpenGLPipeline::onStop() {
152    if (mEglManager.isCurrent(mEglSurface)) {
153        mEglManager.makeCurrent(EGL_NO_SURFACE);
154    }
155}
156
157bool SkiaOpenGLPipeline::setSurface(Surface* surface, SwapBehavior swapBehavior) {
158
159    if (mEglSurface != EGL_NO_SURFACE) {
160        mEglManager.destroySurface(mEglSurface);
161        mEglSurface = EGL_NO_SURFACE;
162    }
163
164    if (surface) {
165        mEglSurface = mEglManager.createSurface(surface);
166    }
167
168    if (mEglSurface != EGL_NO_SURFACE) {
169        const bool preserveBuffer = (swapBehavior != SwapBehavior::kSwap_discardBuffer);
170        mBufferPreserved = mEglManager.setPreserveBuffer(mEglSurface, preserveBuffer);
171        return true;
172    }
173
174    return false;
175}
176
177bool SkiaOpenGLPipeline::isSurfaceReady() {
178    return CC_UNLIKELY(mEglSurface != EGL_NO_SURFACE);
179}
180
181bool SkiaOpenGLPipeline::isContextReady() {
182    return CC_LIKELY(mEglManager.hasEglContext());
183}
184
185void SkiaOpenGLPipeline::invokeFunctor(const RenderThread& thread, Functor* functor) {
186    DrawGlInfo::Mode mode = DrawGlInfo::kModeProcessNoContext;
187    if (thread.eglManager().hasEglContext()) {
188        mode = DrawGlInfo::kModeProcess;
189    }
190
191    (*functor)(mode, nullptr);
192
193    // If there's no context we don't need to reset as there's no gl state to save/restore
194    if (mode != DrawGlInfo::kModeProcessNoContext) {
195        thread.getGrContext()->resetContext();
196    }
197}
198
199} /* namespace skiapipeline */
200} /* namespace uirenderer */
201} /* namespace android */
202