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      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 "LayerDrawable.h"
     21 #include "SkiaPipeline.h"
     22 #include "SkiaProfileRenderer.h"
     23 #include "hwui/Bitmap.h"
     24 #include "private/hwui/DrawGlInfo.h"
     25 #include "renderstate/RenderState.h"
     26 #include "renderthread/EglManager.h"
     27 #include "renderthread/Frame.h"
     28 #include "utils/GLUtils.h"
     29 #include "utils/TraceUtils.h"
     30 
     31 #include <GLES3/gl3.h>
     32 
     33 #include <GrBackendSurface.h>
     34 #include <SkBlendMode.h>
     35 #include <SkImageInfo.h>
     36 
     37 #include <cutils/properties.h>
     38 #include <strings.h>
     39 
     40 using namespace android::uirenderer::renderthread;
     41 
     42 namespace android {
     43 namespace uirenderer {
     44 namespace skiapipeline {
     45 
     46 SkiaOpenGLPipeline::SkiaOpenGLPipeline(RenderThread& thread)
     47         : SkiaPipeline(thread), mEglManager(thread.eglManager()) {
     48     thread.renderState().registerContextCallback(this);
     49 }
     50 
     51 SkiaOpenGLPipeline::~SkiaOpenGLPipeline() {
     52     mRenderThread.renderState().removeContextCallback(this);
     53 }
     54 
     55 MakeCurrentResult SkiaOpenGLPipeline::makeCurrent() {
     56     // TODO: Figure out why this workaround is needed, see b/13913604
     57     // In the meantime this matches the behavior of GLRenderer, so it is not a regression
     58     EGLint error = 0;
     59     if (!mEglManager.makeCurrent(mEglSurface, &error)) {
     60         return MakeCurrentResult::AlreadyCurrent;
     61     }
     62     return error ? MakeCurrentResult::Failed : MakeCurrentResult::Succeeded;
     63 }
     64 
     65 Frame SkiaOpenGLPipeline::getFrame() {
     66     LOG_ALWAYS_FATAL_IF(mEglSurface == EGL_NO_SURFACE,
     67                         "drawRenderNode called on a context with no surface!");
     68     return mEglManager.beginFrame(mEglSurface);
     69 }
     70 
     71 bool SkiaOpenGLPipeline::draw(const Frame& frame, const SkRect& screenDirty, const SkRect& dirty,
     72                               const LightGeometry& lightGeometry,
     73                               LayerUpdateQueue* layerUpdateQueue, const Rect& contentDrawBounds,
     74                               bool opaque, const LightInfo& lightInfo,
     75                               const std::vector<sp<RenderNode>>& renderNodes,
     76                               FrameInfoVisualizer* profiler) {
     77     mEglManager.damageFrame(frame, dirty);
     78 
     79     SkColorType colorType = getSurfaceColorType();
     80     // setup surface for fbo0
     81     GrGLFramebufferInfo fboInfo;
     82     fboInfo.fFBOID = 0;
     83     if (colorType == kRGBA_F16_SkColorType) {
     84         fboInfo.fFormat = GL_RGBA16F;
     85     } else if (colorType == kN32_SkColorType) {
     86         // Note: The default preference of pixel format is RGBA_8888, when other
     87         // pixel format is available, we should branch out and do more check.
     88         fboInfo.fFormat = GL_RGBA8;
     89     } else {
     90         LOG_ALWAYS_FATAL("Unsupported color type.");
     91     }
     92 
     93     GrBackendRenderTarget backendRT(frame.width(), frame.height(), 0, STENCIL_BUFFER_SIZE, fboInfo);
     94 
     95     SkSurfaceProps props(0, kUnknown_SkPixelGeometry);
     96 
     97     SkASSERT(mRenderThread.getGrContext() != nullptr);
     98     sk_sp<SkSurface> surface(SkSurface::MakeFromBackendRenderTarget(
     99             mRenderThread.getGrContext(), backendRT, this->getSurfaceOrigin(), colorType,
    100             mSurfaceColorSpace, &props));
    101 
    102     SkiaPipeline::updateLighting(lightGeometry, lightInfo);
    103     renderFrame(*layerUpdateQueue, dirty, renderNodes, opaque, contentDrawBounds, surface,
    104                 SkMatrix::I());
    105     layerUpdateQueue->clear();
    106 
    107     // Draw visual debugging features
    108     if (CC_UNLIKELY(Properties::showDirtyRegions ||
    109                     ProfileType::None != Properties::getProfileType())) {
    110         SkCanvas* profileCanvas = surface->getCanvas();
    111         SkiaProfileRenderer profileRenderer(profileCanvas);
    112         profiler->draw(profileRenderer);
    113         profileCanvas->flush();
    114     }
    115 
    116     // Log memory statistics
    117     if (CC_UNLIKELY(Properties::debugLevel != kDebugDisabled)) {
    118         dumpResourceCacheUsage();
    119     }
    120 
    121     return true;
    122 }
    123 
    124 bool SkiaOpenGLPipeline::swapBuffers(const Frame& frame, bool drew, const SkRect& screenDirty,
    125                                      FrameInfo* currentFrameInfo, bool* requireSwap) {
    126     GL_CHECKPOINT(LOW);
    127 
    128     // Even if we decided to cancel the frame, from the perspective of jank
    129     // metrics the frame was swapped at this point
    130     currentFrameInfo->markSwapBuffers();
    131 
    132     *requireSwap = drew || mEglManager.damageRequiresSwap();
    133 
    134     if (*requireSwap && (CC_UNLIKELY(!mEglManager.swapBuffers(frame, screenDirty)))) {
    135         return false;
    136     }
    137 
    138     return *requireSwap;
    139 }
    140 
    141 DeferredLayerUpdater* SkiaOpenGLPipeline::createTextureLayer() {
    142     mRenderThread.requireGlContext();
    143     return new DeferredLayerUpdater(mRenderThread.renderState());
    144 }
    145 
    146 void SkiaOpenGLPipeline::onContextDestroyed() {
    147     if (mEglSurface != EGL_NO_SURFACE) {
    148         mEglManager.destroySurface(mEglSurface);
    149         mEglSurface = EGL_NO_SURFACE;
    150     }
    151 }
    152 
    153 void SkiaOpenGLPipeline::onStop() {
    154     if (mEglManager.isCurrent(mEglSurface)) {
    155         mEglManager.makeCurrent(EGL_NO_SURFACE);
    156     }
    157 }
    158 
    159 static void setBufferCount(ANativeWindow* window, uint32_t extraBuffers) {
    160     int query_value;
    161     int err = window->query(window, NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS, &query_value);
    162     if (err != 0 || query_value < 0) {
    163         ALOGE("window->query failed: %s (%d) value=%d", strerror(-err), err, query_value);
    164         return;
    165     }
    166     auto min_undequeued_buffers = static_cast<uint32_t>(query_value);
    167 
    168     int bufferCount = min_undequeued_buffers + 2 + extraBuffers;
    169     native_window_set_buffer_count(window, bufferCount);
    170 }
    171 
    172 bool SkiaOpenGLPipeline::setSurface(ANativeWindow* surface, SwapBehavior swapBehavior,
    173                                     ColorMode colorMode, uint32_t extraBuffers) {
    174     if (mEglSurface != EGL_NO_SURFACE) {
    175         mEglManager.destroySurface(mEglSurface);
    176         mEglSurface = EGL_NO_SURFACE;
    177     }
    178 
    179     setSurfaceColorProperties(colorMode);
    180 
    181     if (surface) {
    182         mRenderThread.requireGlContext();
    183         auto newSurface = mEglManager.createSurface(surface, colorMode, mSurfaceColorSpace);
    184         if (!newSurface) {
    185             return false;
    186         }
    187         mEglSurface = newSurface.unwrap();
    188     }
    189 
    190     if (mEglSurface != EGL_NO_SURFACE) {
    191         const bool preserveBuffer = (swapBehavior != SwapBehavior::kSwap_discardBuffer);
    192         mBufferPreserved = mEglManager.setPreserveBuffer(mEglSurface, preserveBuffer);
    193         setBufferCount(surface, extraBuffers);
    194         return true;
    195     }
    196 
    197     return false;
    198 }
    199 
    200 bool SkiaOpenGLPipeline::isSurfaceReady() {
    201     return CC_UNLIKELY(mEglSurface != EGL_NO_SURFACE);
    202 }
    203 
    204 bool SkiaOpenGLPipeline::isContextReady() {
    205     return CC_LIKELY(mEglManager.hasEglContext());
    206 }
    207 
    208 void SkiaOpenGLPipeline::invokeFunctor(const RenderThread& thread, Functor* functor) {
    209     DrawGlInfo::Mode mode = DrawGlInfo::kModeProcessNoContext;
    210     if (thread.eglManager().hasEglContext()) {
    211         mode = DrawGlInfo::kModeProcess;
    212     }
    213 
    214     (*functor)(mode, nullptr);
    215 
    216     // If there's no context we don't need to reset as there's no gl state to save/restore
    217     if (mode != DrawGlInfo::kModeProcessNoContext) {
    218         thread.getGrContext()->resetContext();
    219     }
    220 }
    221 
    222 } /* namespace skiapipeline */
    223 } /* namespace uirenderer */
    224 } /* namespace android */
    225