SkiaOpenGLPipeline.cpp revision 500a0c30d4dcd012218c3e44a62926a1c34a259f 
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 "utils/TraceUtils.h"
24
25#include <android/native_window.h>
26#include <cutils/properties.h>
27#include <strings.h>
28
29using namespace android::uirenderer::renderthread;
30
31namespace android {
32namespace uirenderer {
33namespace skiapipeline {
34
35SkiaOpenGLPipeline::SkiaOpenGLPipeline(RenderThread& thread)
36        : SkiaPipeline(thread)
37        , mEglManager(thread.eglManager()) {
38}
39
40MakeCurrentResult SkiaOpenGLPipeline::makeCurrent() {
41    // TODO: Figure out why this workaround is needed, see b/13913604
42    // In the meantime this matches the behavior of GLRenderer, so it is not a regression
43    EGLint error = 0;
44    if (!mEglManager.makeCurrent(mEglSurface, &error)) {
45        return MakeCurrentResult::AlreadyCurrent;
46    }
47    return error ? MakeCurrentResult::Failed : MakeCurrentResult::Succeeded;
48}
49
50Frame SkiaOpenGLPipeline::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 SkiaOpenGLPipeline::draw(const Frame& frame, const SkRect& screenDirty,
57        const SkRect& dirty,
58        const FrameBuilder::LightGeometry& lightGeometry,
59        LayerUpdateQueue* layerUpdateQueue,
60        const Rect& contentDrawBounds, bool opaque,
61        const BakedOpRenderer::LightInfo& lightInfo,
62        const std::vector<sp<RenderNode>>& renderNodes,
63        FrameInfoVisualizer* profiler) {
64
65    mEglManager.damageFrame(frame, dirty);
66
67    // setup surface for fbo0
68    GrBackendRenderTargetDesc renderTargetDesc;
69    renderTargetDesc.fWidth = frame.width();
70    renderTargetDesc.fHeight = frame.height();
71    renderTargetDesc.fConfig = kRGBA_8888_GrPixelConfig;
72    renderTargetDesc.fOrigin = kBottomLeft_GrSurfaceOrigin;
73    renderTargetDesc.fSampleCnt = 0;
74    renderTargetDesc.fStencilBits = STENCIL_BUFFER_SIZE;
75    renderTargetDesc.fRenderTargetHandle = 0;
76
77    SkSurfaceProps props(0, kUnknown_SkPixelGeometry);
78
79    SkASSERT(mRenderThread.getGrContext() != nullptr);
80    sk_sp<SkSurface> surface(SkSurface::MakeFromBackendRenderTarget(
81            mRenderThread.getGrContext(), renderTargetDesc, &props));
82
83    SkiaPipeline::updateLighting(lightGeometry, lightInfo);
84    renderFrame(*layerUpdateQueue, dirty, renderNodes, opaque, contentDrawBounds, surface);
85    layerUpdateQueue->clear();
86    return true;
87}
88
89bool SkiaOpenGLPipeline::swapBuffers(const Frame& frame, bool drew,
90        const SkRect& screenDirty, FrameInfo* currentFrameInfo, bool* requireSwap) {
91
92    GL_CHECKPOINT(LOW);
93
94    // Even if we decided to cancel the frame, from the perspective of jank
95    // metrics the frame was swapped at this point
96    currentFrameInfo->markSwapBuffers();
97
98    *requireSwap = drew || mEglManager.damageRequiresSwap();
99
100    if (*requireSwap && (CC_UNLIKELY(!mEglManager.swapBuffers(frame, screenDirty)))) {
101        return false;
102    }
103
104    return *requireSwap;
105}
106
107bool SkiaOpenGLPipeline::copyLayerInto(DeferredLayerUpdater* layer, SkBitmap* bitmap) {
108    layer->apply();
109    return Readback::copyTextureLayerInto(mRenderThread, *(layer->backingLayer()), bitmap)
110            == CopyResult::Success;
111}
112
113DeferredLayerUpdater* SkiaOpenGLPipeline::createTextureLayer() {
114    mEglManager.initialize();
115    Layer* layer = new Layer(mRenderThread.renderState(), 0, 0);
116    layer->generateTexture();
117    return new DeferredLayerUpdater(layer);
118}
119
120void SkiaOpenGLPipeline::onStop() {
121    if (mEglManager.isCurrent(mEglSurface)) {
122        mEglManager.makeCurrent(EGL_NO_SURFACE);
123    }
124}
125
126bool SkiaOpenGLPipeline::setSurface(Surface* surface, SwapBehavior swapBehavior) {
127
128    if (mEglSurface != EGL_NO_SURFACE) {
129        mEglManager.destroySurface(mEglSurface);
130        mEglSurface = EGL_NO_SURFACE;
131    }
132
133    if (surface) {
134        mEglSurface = mEglManager.createSurface(surface);
135    }
136
137    if (mEglSurface != EGL_NO_SURFACE) {
138        const bool preserveBuffer = (swapBehavior != SwapBehavior::kSwap_discardBuffer);
139        mBufferPreserved = mEglManager.setPreserveBuffer(mEglSurface, preserveBuffer);
140        return true;
141    }
142
143    return false;
144}
145
146bool SkiaOpenGLPipeline::isSurfaceReady() {
147    return CC_UNLIKELY(mEglSurface != EGL_NO_SURFACE);
148}
149
150bool SkiaOpenGLPipeline::isContextReady() {
151    return CC_LIKELY(mEglManager.hasEglContext());
152}
153
154void SkiaOpenGLPipeline::invokeFunctor(const RenderThread& thread, Functor* functor) {
155    DrawGlInfo::Mode mode = DrawGlInfo::kModeProcessNoContext;
156    if (thread.eglManager().hasEglContext()) {
157        mode = DrawGlInfo::kModeProcess;
158    }
159
160    (*functor)(mode, nullptr);
161
162    // If there's no context we don't need to reset as there's no gl state to save/restore
163    if (mode != DrawGlInfo::kModeProcessNoContext) {
164        thread.getGrContext()->resetContext();
165    }
166}
167
168} /* namespace skiapipeline */
169} /* namespace uirenderer */
170} /* namespace android */
171