| /* | 
 |  * Copyright 2020 The Android Open Source Project | 
 |  * | 
 |  * Licensed under the Apache License, Version 2.0 (the "License"); | 
 |  * you may not use this file except in compliance with the License. | 
 |  * You may obtain a copy of the License at | 
 |  * | 
 |  *      http://www.apache.org/licenses/LICENSE-2.0 | 
 |  * | 
 |  * Unless required by applicable law or agreed to in writing, software | 
 |  * distributed under the License is distributed on an "AS IS" BASIS, | 
 |  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 
 |  * See the License for the specific language governing permissions and | 
 |  * limitations under the License. | 
 |  */ | 
 |  | 
 | //#define LOG_NDEBUG 0 | 
 | #undef LOG_TAG | 
 | #define LOG_TAG "RenderEngine" | 
 | #define ATRACE_TAG ATRACE_TAG_GRAPHICS | 
 |  | 
 | #include "SkiaGLRenderEngine.h" | 
 |  | 
 | #include <EGL/egl.h> | 
 | #include <EGL/eglext.h> | 
 | #include <GrContextOptions.h> | 
 | #include <SkCanvas.h> | 
 | #include <SkColorFilter.h> | 
 | #include <SkColorMatrix.h> | 
 | #include <SkColorSpace.h> | 
 | #include <SkGraphics.h> | 
 | #include <SkImage.h> | 
 | #include <SkImageFilters.h> | 
 | #include <SkRegion.h> | 
 | #include <SkShadowUtils.h> | 
 | #include <SkSurface.h> | 
 | #include <android-base/stringprintf.h> | 
 | #include <gl/GrGLInterface.h> | 
 | #include <gui/TraceUtils.h> | 
 | #include <sync/sync.h> | 
 | #include <ui/BlurRegion.h> | 
 | #include <ui/DebugUtils.h> | 
 | #include <ui/GraphicBuffer.h> | 
 | #include <utils/Trace.h> | 
 |  | 
 | #include <cmath> | 
 | #include <cstdint> | 
 | #include <memory> | 
 |  | 
 | #include "../gl/GLExtensions.h" | 
 | #include "Cache.h" | 
 | #include "ColorSpaces.h" | 
 | #include "SkBlendMode.h" | 
 | #include "SkImageInfo.h" | 
 | #include "filters/BlurFilter.h" | 
 | #include "filters/LinearEffect.h" | 
 | #include "log/log_main.h" | 
 | #include "skia/debug/SkiaCapture.h" | 
 | #include "skia/debug/SkiaMemoryReporter.h" | 
 | #include "skia/filters/StretchShaderFactory.h" | 
 | #include "system/graphics-base-v1.0.h" | 
 |  | 
 | namespace { | 
 | // Debugging settings | 
 | static const bool kPrintLayerSettings = false; | 
 | static const bool kFlushAfterEveryLayer = false; | 
 | } // namespace | 
 |  | 
 | bool checkGlError(const char* op, int lineNumber); | 
 |  | 
 | namespace android { | 
 | namespace renderengine { | 
 | namespace skia { | 
 |  | 
 | using base::StringAppendF; | 
 |  | 
 | static status_t selectConfigForAttribute(EGLDisplay dpy, EGLint const* attrs, EGLint attribute, | 
 |                                          EGLint wanted, EGLConfig* outConfig) { | 
 |     EGLint numConfigs = -1, n = 0; | 
 |     eglGetConfigs(dpy, nullptr, 0, &numConfigs); | 
 |     std::vector<EGLConfig> configs(numConfigs, EGL_NO_CONFIG_KHR); | 
 |     eglChooseConfig(dpy, attrs, configs.data(), configs.size(), &n); | 
 |     configs.resize(n); | 
 |  | 
 |     if (!configs.empty()) { | 
 |         if (attribute != EGL_NONE) { | 
 |             for (EGLConfig config : configs) { | 
 |                 EGLint value = 0; | 
 |                 eglGetConfigAttrib(dpy, config, attribute, &value); | 
 |                 if (wanted == value) { | 
 |                     *outConfig = config; | 
 |                     return NO_ERROR; | 
 |                 } | 
 |             } | 
 |         } else { | 
 |             // just pick the first one | 
 |             *outConfig = configs[0]; | 
 |             return NO_ERROR; | 
 |         } | 
 |     } | 
 |  | 
 |     return NAME_NOT_FOUND; | 
 | } | 
 |  | 
 | static status_t selectEGLConfig(EGLDisplay display, EGLint format, EGLint renderableType, | 
 |                                 EGLConfig* config) { | 
 |     // select our EGLConfig. It must support EGL_RECORDABLE_ANDROID if | 
 |     // it is to be used with WIFI displays | 
 |     status_t err; | 
 |     EGLint wantedAttribute; | 
 |     EGLint wantedAttributeValue; | 
 |  | 
 |     std::vector<EGLint> attribs; | 
 |     if (renderableType) { | 
 |         const ui::PixelFormat pixelFormat = static_cast<ui::PixelFormat>(format); | 
 |         const bool is1010102 = pixelFormat == ui::PixelFormat::RGBA_1010102; | 
 |  | 
 |         // Default to 8 bits per channel. | 
 |         const EGLint tmpAttribs[] = { | 
 |                 EGL_RENDERABLE_TYPE, | 
 |                 renderableType, | 
 |                 EGL_RECORDABLE_ANDROID, | 
 |                 EGL_TRUE, | 
 |                 EGL_SURFACE_TYPE, | 
 |                 EGL_WINDOW_BIT | EGL_PBUFFER_BIT, | 
 |                 EGL_FRAMEBUFFER_TARGET_ANDROID, | 
 |                 EGL_TRUE, | 
 |                 EGL_RED_SIZE, | 
 |                 is1010102 ? 10 : 8, | 
 |                 EGL_GREEN_SIZE, | 
 |                 is1010102 ? 10 : 8, | 
 |                 EGL_BLUE_SIZE, | 
 |                 is1010102 ? 10 : 8, | 
 |                 EGL_ALPHA_SIZE, | 
 |                 is1010102 ? 2 : 8, | 
 |                 EGL_NONE, | 
 |         }; | 
 |         std::copy(tmpAttribs, tmpAttribs + (sizeof(tmpAttribs) / sizeof(EGLint)), | 
 |                   std::back_inserter(attribs)); | 
 |         wantedAttribute = EGL_NONE; | 
 |         wantedAttributeValue = EGL_NONE; | 
 |     } else { | 
 |         // if no renderable type specified, fallback to a simplified query | 
 |         wantedAttribute = EGL_NATIVE_VISUAL_ID; | 
 |         wantedAttributeValue = format; | 
 |     } | 
 |  | 
 |     err = selectConfigForAttribute(display, attribs.data(), wantedAttribute, wantedAttributeValue, | 
 |                                    config); | 
 |     if (err == NO_ERROR) { | 
 |         EGLint caveat; | 
 |         if (eglGetConfigAttrib(display, *config, EGL_CONFIG_CAVEAT, &caveat)) | 
 |             ALOGW_IF(caveat == EGL_SLOW_CONFIG, "EGL_SLOW_CONFIG selected!"); | 
 |     } | 
 |  | 
 |     return err; | 
 | } | 
 |  | 
 | std::unique_ptr<SkiaGLRenderEngine> SkiaGLRenderEngine::create( | 
 |         const RenderEngineCreationArgs& args) { | 
 |     // initialize EGL for the default display | 
 |     EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY); | 
 |     if (!eglInitialize(display, nullptr, nullptr)) { | 
 |         LOG_ALWAYS_FATAL("failed to initialize EGL"); | 
 |     } | 
 |  | 
 |     const auto eglVersion = eglQueryString(display, EGL_VERSION); | 
 |     if (!eglVersion) { | 
 |         checkGlError(__FUNCTION__, __LINE__); | 
 |         LOG_ALWAYS_FATAL("eglQueryString(EGL_VERSION) failed"); | 
 |     } | 
 |  | 
 |     const auto eglExtensions = eglQueryString(display, EGL_EXTENSIONS); | 
 |     if (!eglExtensions) { | 
 |         checkGlError(__FUNCTION__, __LINE__); | 
 |         LOG_ALWAYS_FATAL("eglQueryString(EGL_EXTENSIONS) failed"); | 
 |     } | 
 |  | 
 |     auto& extensions = gl::GLExtensions::getInstance(); | 
 |     extensions.initWithEGLStrings(eglVersion, eglExtensions); | 
 |  | 
 |     // The code assumes that ES2 or later is available if this extension is | 
 |     // supported. | 
 |     EGLConfig config = EGL_NO_CONFIG_KHR; | 
 |     if (!extensions.hasNoConfigContext()) { | 
 |         config = chooseEglConfig(display, args.pixelFormat, /*logConfig*/ true); | 
 |     } | 
 |  | 
 |     EGLContext protectedContext = EGL_NO_CONTEXT; | 
 |     const std::optional<RenderEngine::ContextPriority> priority = createContextPriority(args); | 
 |     if (args.enableProtectedContext && extensions.hasProtectedContent()) { | 
 |         protectedContext = | 
 |                 createEglContext(display, config, nullptr, priority, Protection::PROTECTED); | 
 |         ALOGE_IF(protectedContext == EGL_NO_CONTEXT, "Can't create protected context"); | 
 |     } | 
 |  | 
 |     EGLContext ctxt = | 
 |             createEglContext(display, config, protectedContext, priority, Protection::UNPROTECTED); | 
 |  | 
 |     // if can't create a GL context, we can only abort. | 
 |     LOG_ALWAYS_FATAL_IF(ctxt == EGL_NO_CONTEXT, "EGLContext creation failed"); | 
 |  | 
 |     EGLSurface placeholder = EGL_NO_SURFACE; | 
 |     if (!extensions.hasSurfacelessContext()) { | 
 |         placeholder = createPlaceholderEglPbufferSurface(display, config, args.pixelFormat, | 
 |                                                          Protection::UNPROTECTED); | 
 |         LOG_ALWAYS_FATAL_IF(placeholder == EGL_NO_SURFACE, "can't create placeholder pbuffer"); | 
 |     } | 
 |     EGLBoolean success = eglMakeCurrent(display, placeholder, placeholder, ctxt); | 
 |     LOG_ALWAYS_FATAL_IF(!success, "can't make placeholder pbuffer current"); | 
 |     extensions.initWithGLStrings(glGetString(GL_VENDOR), glGetString(GL_RENDERER), | 
 |                                  glGetString(GL_VERSION), glGetString(GL_EXTENSIONS)); | 
 |  | 
 |     EGLSurface protectedPlaceholder = EGL_NO_SURFACE; | 
 |     if (protectedContext != EGL_NO_CONTEXT && !extensions.hasSurfacelessContext()) { | 
 |         protectedPlaceholder = createPlaceholderEglPbufferSurface(display, config, args.pixelFormat, | 
 |                                                                   Protection::PROTECTED); | 
 |         ALOGE_IF(protectedPlaceholder == EGL_NO_SURFACE, | 
 |                  "can't create protected placeholder pbuffer"); | 
 |     } | 
 |  | 
 |     // initialize the renderer while GL is current | 
 |     std::unique_ptr<SkiaGLRenderEngine> engine = | 
 |             std::make_unique<SkiaGLRenderEngine>(args, display, ctxt, placeholder, protectedContext, | 
 |                                                  protectedPlaceholder); | 
 |  | 
 |     ALOGI("OpenGL ES informations:"); | 
 |     ALOGI("vendor    : %s", extensions.getVendor()); | 
 |     ALOGI("renderer  : %s", extensions.getRenderer()); | 
 |     ALOGI("version   : %s", extensions.getVersion()); | 
 |     ALOGI("extensions: %s", extensions.getExtensions()); | 
 |     ALOGI("GL_MAX_TEXTURE_SIZE = %zu", engine->getMaxTextureSize()); | 
 |     ALOGI("GL_MAX_VIEWPORT_DIMS = %zu", engine->getMaxViewportDims()); | 
 |  | 
 |     return engine; | 
 | } | 
 |  | 
 | std::future<void> SkiaGLRenderEngine::primeCache() { | 
 |     Cache::primeShaderCache(this); | 
 |     return {}; | 
 | } | 
 |  | 
 | EGLConfig SkiaGLRenderEngine::chooseEglConfig(EGLDisplay display, int format, bool logConfig) { | 
 |     status_t err; | 
 |     EGLConfig config; | 
 |  | 
 |     // First try to get an ES3 config | 
 |     err = selectEGLConfig(display, format, EGL_OPENGL_ES3_BIT, &config); | 
 |     if (err != NO_ERROR) { | 
 |         // If ES3 fails, try to get an ES2 config | 
 |         err = selectEGLConfig(display, format, EGL_OPENGL_ES2_BIT, &config); | 
 |         if (err != NO_ERROR) { | 
 |             // If ES2 still doesn't work, probably because we're on the emulator. | 
 |             // try a simplified query | 
 |             ALOGW("no suitable EGLConfig found, trying a simpler query"); | 
 |             err = selectEGLConfig(display, format, 0, &config); | 
 |             if (err != NO_ERROR) { | 
 |                 // this EGL is too lame for android | 
 |                 LOG_ALWAYS_FATAL("no suitable EGLConfig found, giving up"); | 
 |             } | 
 |         } | 
 |     } | 
 |  | 
 |     if (logConfig) { | 
 |         // print some debugging info | 
 |         EGLint r, g, b, a; | 
 |         eglGetConfigAttrib(display, config, EGL_RED_SIZE, &r); | 
 |         eglGetConfigAttrib(display, config, EGL_GREEN_SIZE, &g); | 
 |         eglGetConfigAttrib(display, config, EGL_BLUE_SIZE, &b); | 
 |         eglGetConfigAttrib(display, config, EGL_ALPHA_SIZE, &a); | 
 |         ALOGI("EGL information:"); | 
 |         ALOGI("vendor    : %s", eglQueryString(display, EGL_VENDOR)); | 
 |         ALOGI("version   : %s", eglQueryString(display, EGL_VERSION)); | 
 |         ALOGI("extensions: %s", eglQueryString(display, EGL_EXTENSIONS)); | 
 |         ALOGI("Client API: %s", eglQueryString(display, EGL_CLIENT_APIS) ?: "Not Supported"); | 
 |         ALOGI("EGLSurface: %d-%d-%d-%d, config=%p", r, g, b, a, config); | 
 |     } | 
 |  | 
 |     return config; | 
 | } | 
 |  | 
 | sk_sp<SkData> SkiaGLRenderEngine::SkSLCacheMonitor::load(const SkData& key) { | 
 |     // This "cache" does not actually cache anything. It just allows us to | 
 |     // monitor Skia's internal cache. So this method always returns null. | 
 |     return nullptr; | 
 | } | 
 |  | 
 | void SkiaGLRenderEngine::SkSLCacheMonitor::store(const SkData& key, const SkData& data, | 
 |                                                  const SkString& description) { | 
 |     mShadersCachedSinceLastCall++; | 
 | } | 
 |  | 
 | void SkiaGLRenderEngine::assertShadersCompiled(int numShaders) { | 
 |     const int cached = mSkSLCacheMonitor.shadersCachedSinceLastCall(); | 
 |     LOG_ALWAYS_FATAL_IF(cached != numShaders, "Attempted to cache %i shaders; cached %i", | 
 |                         numShaders, cached); | 
 | } | 
 |  | 
 | int SkiaGLRenderEngine::reportShadersCompiled() { | 
 |     return mSkSLCacheMonitor.shadersCachedSinceLastCall(); | 
 | } | 
 |  | 
 | SkiaGLRenderEngine::SkiaGLRenderEngine(const RenderEngineCreationArgs& args, EGLDisplay display, | 
 |                                        EGLContext ctxt, EGLSurface placeholder, | 
 |                                        EGLContext protectedContext, EGLSurface protectedPlaceholder) | 
 |       : SkiaRenderEngine(args.renderEngineType), | 
 |         mEGLDisplay(display), | 
 |         mEGLContext(ctxt), | 
 |         mPlaceholderSurface(placeholder), | 
 |         mProtectedEGLContext(protectedContext), | 
 |         mProtectedPlaceholderSurface(protectedPlaceholder), | 
 |         mDefaultPixelFormat(static_cast<PixelFormat>(args.pixelFormat)), | 
 |         mUseColorManagement(args.useColorManagement) { | 
 |     sk_sp<const GrGLInterface> glInterface(GrGLCreateNativeInterface()); | 
 |     LOG_ALWAYS_FATAL_IF(!glInterface.get()); | 
 |  | 
 |     GrContextOptions options; | 
 |     options.fDisableDriverCorrectnessWorkarounds = true; | 
 |     options.fDisableDistanceFieldPaths = true; | 
 |     options.fReducedShaderVariations = true; | 
 |     options.fPersistentCache = &mSkSLCacheMonitor; | 
 |     mGrContext = GrDirectContext::MakeGL(glInterface, options); | 
 |     if (useProtectedContext(true)) { | 
 |         mProtectedGrContext = GrDirectContext::MakeGL(glInterface, options); | 
 |         useProtectedContext(false); | 
 |     } | 
 |  | 
 |     if (args.supportsBackgroundBlur) { | 
 |         ALOGD("Background Blurs Enabled"); | 
 |         mBlurFilter = new BlurFilter(); | 
 |     } | 
 |     mCapture = std::make_unique<SkiaCapture>(); | 
 | } | 
 |  | 
 | SkiaGLRenderEngine::~SkiaGLRenderEngine() { | 
 |     std::lock_guard<std::mutex> lock(mRenderingMutex); | 
 |     if (mBlurFilter) { | 
 |         delete mBlurFilter; | 
 |     } | 
 |  | 
 |     mCapture = nullptr; | 
 |  | 
 |     mGrContext->flushAndSubmit(true); | 
 |     mGrContext->abandonContext(); | 
 |  | 
 |     if (mProtectedGrContext) { | 
 |         mProtectedGrContext->flushAndSubmit(true); | 
 |         mProtectedGrContext->abandonContext(); | 
 |     } | 
 |  | 
 |     if (mPlaceholderSurface != EGL_NO_SURFACE) { | 
 |         eglDestroySurface(mEGLDisplay, mPlaceholderSurface); | 
 |     } | 
 |     if (mProtectedPlaceholderSurface != EGL_NO_SURFACE) { | 
 |         eglDestroySurface(mEGLDisplay, mProtectedPlaceholderSurface); | 
 |     } | 
 |     if (mEGLContext != EGL_NO_CONTEXT) { | 
 |         eglDestroyContext(mEGLDisplay, mEGLContext); | 
 |     } | 
 |     if (mProtectedEGLContext != EGL_NO_CONTEXT) { | 
 |         eglDestroyContext(mEGLDisplay, mProtectedEGLContext); | 
 |     } | 
 |     eglMakeCurrent(mEGLDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT); | 
 |     eglTerminate(mEGLDisplay); | 
 |     eglReleaseThread(); | 
 | } | 
 |  | 
 | bool SkiaGLRenderEngine::supportsProtectedContent() const { | 
 |     return mProtectedEGLContext != EGL_NO_CONTEXT; | 
 | } | 
 |  | 
 | GrDirectContext* SkiaGLRenderEngine::getActiveGrContext() const { | 
 |     return mInProtectedContext ? mProtectedGrContext.get() : mGrContext.get(); | 
 | } | 
 |  | 
 | bool SkiaGLRenderEngine::useProtectedContext(bool useProtectedContext) { | 
 |     if (useProtectedContext == mInProtectedContext) { | 
 |         return true; | 
 |     } | 
 |     if (useProtectedContext && !supportsProtectedContent()) { | 
 |         return false; | 
 |     } | 
 |  | 
 |     // release any scratch resources before switching into a new mode | 
 |     if (getActiveGrContext()) { | 
 |         getActiveGrContext()->purgeUnlockedResources(true); | 
 |     } | 
 |  | 
 |     const EGLSurface surface = | 
 |             useProtectedContext ? mProtectedPlaceholderSurface : mPlaceholderSurface; | 
 |     const EGLContext context = useProtectedContext ? mProtectedEGLContext : mEGLContext; | 
 |     const bool success = eglMakeCurrent(mEGLDisplay, surface, surface, context) == EGL_TRUE; | 
 |  | 
 |     if (success) { | 
 |         mInProtectedContext = useProtectedContext; | 
 |         // given that we are sharing the same thread between two GrContexts we need to | 
 |         // make sure that the thread state is reset when switching between the two. | 
 |         if (getActiveGrContext()) { | 
 |             getActiveGrContext()->resetContext(); | 
 |         } | 
 |     } | 
 |     return success; | 
 | } | 
 |  | 
 | base::unique_fd SkiaGLRenderEngine::flush() { | 
 |     ATRACE_CALL(); | 
 |     if (!gl::GLExtensions::getInstance().hasNativeFenceSync()) { | 
 |         return base::unique_fd(); | 
 |     } | 
 |  | 
 |     EGLSyncKHR sync = eglCreateSyncKHR(mEGLDisplay, EGL_SYNC_NATIVE_FENCE_ANDROID, nullptr); | 
 |     if (sync == EGL_NO_SYNC_KHR) { | 
 |         ALOGW("failed to create EGL native fence sync: %#x", eglGetError()); | 
 |         return base::unique_fd(); | 
 |     } | 
 |  | 
 |     // native fence fd will not be populated until flush() is done. | 
 |     glFlush(); | 
 |  | 
 |     // get the fence fd | 
 |     base::unique_fd fenceFd(eglDupNativeFenceFDANDROID(mEGLDisplay, sync)); | 
 |     eglDestroySyncKHR(mEGLDisplay, sync); | 
 |     if (fenceFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) { | 
 |         ALOGW("failed to dup EGL native fence sync: %#x", eglGetError()); | 
 |     } | 
 |  | 
 |     return fenceFd; | 
 | } | 
 |  | 
 | bool SkiaGLRenderEngine::waitFence(base::unique_fd fenceFd) { | 
 |     if (!gl::GLExtensions::getInstance().hasNativeFenceSync() || | 
 |         !gl::GLExtensions::getInstance().hasWaitSync()) { | 
 |         return false; | 
 |     } | 
 |  | 
 |     // release the fd and transfer the ownership to EGLSync | 
 |     EGLint attribs[] = {EGL_SYNC_NATIVE_FENCE_FD_ANDROID, fenceFd.release(), EGL_NONE}; | 
 |     EGLSyncKHR sync = eglCreateSyncKHR(mEGLDisplay, EGL_SYNC_NATIVE_FENCE_ANDROID, attribs); | 
 |     if (sync == EGL_NO_SYNC_KHR) { | 
 |         ALOGE("failed to create EGL native fence sync: %#x", eglGetError()); | 
 |         return false; | 
 |     } | 
 |  | 
 |     // XXX: The spec draft is inconsistent as to whether this should return an | 
 |     // EGLint or void.  Ignore the return value for now, as it's not strictly | 
 |     // needed. | 
 |     eglWaitSyncKHR(mEGLDisplay, sync, 0); | 
 |     EGLint error = eglGetError(); | 
 |     eglDestroySyncKHR(mEGLDisplay, sync); | 
 |     if (error != EGL_SUCCESS) { | 
 |         ALOGE("failed to wait for EGL native fence sync: %#x", error); | 
 |         return false; | 
 |     } | 
 |  | 
 |     return true; | 
 | } | 
 |  | 
 | static float toDegrees(uint32_t transform) { | 
 |     switch (transform) { | 
 |         case ui::Transform::ROT_90: | 
 |             return 90.0; | 
 |         case ui::Transform::ROT_180: | 
 |             return 180.0; | 
 |         case ui::Transform::ROT_270: | 
 |             return 270.0; | 
 |         default: | 
 |             return 0.0; | 
 |     } | 
 | } | 
 |  | 
 | static SkColorMatrix toSkColorMatrix(const mat4& matrix) { | 
 |     return SkColorMatrix(matrix[0][0], matrix[1][0], matrix[2][0], matrix[3][0], 0, matrix[0][1], | 
 |                          matrix[1][1], matrix[2][1], matrix[3][1], 0, matrix[0][2], matrix[1][2], | 
 |                          matrix[2][2], matrix[3][2], 0, matrix[0][3], matrix[1][3], matrix[2][3], | 
 |                          matrix[3][3], 0); | 
 | } | 
 |  | 
 | static bool needsToneMapping(ui::Dataspace sourceDataspace, ui::Dataspace destinationDataspace) { | 
 |     int64_t sourceTransfer = sourceDataspace & HAL_DATASPACE_TRANSFER_MASK; | 
 |     int64_t destTransfer = destinationDataspace & HAL_DATASPACE_TRANSFER_MASK; | 
 |  | 
 |     // Treat unsupported dataspaces as srgb | 
 |     if (destTransfer != HAL_DATASPACE_TRANSFER_LINEAR && | 
 |         destTransfer != HAL_DATASPACE_TRANSFER_HLG && | 
 |         destTransfer != HAL_DATASPACE_TRANSFER_ST2084) { | 
 |         destTransfer = HAL_DATASPACE_TRANSFER_SRGB; | 
 |     } | 
 |  | 
 |     if (sourceTransfer != HAL_DATASPACE_TRANSFER_LINEAR && | 
 |         sourceTransfer != HAL_DATASPACE_TRANSFER_HLG && | 
 |         sourceTransfer != HAL_DATASPACE_TRANSFER_ST2084) { | 
 |         sourceTransfer = HAL_DATASPACE_TRANSFER_SRGB; | 
 |     } | 
 |  | 
 |     const bool isSourceLinear = sourceTransfer == HAL_DATASPACE_TRANSFER_LINEAR; | 
 |     const bool isSourceSRGB = sourceTransfer == HAL_DATASPACE_TRANSFER_SRGB; | 
 |     const bool isDestLinear = destTransfer == HAL_DATASPACE_TRANSFER_LINEAR; | 
 |     const bool isDestSRGB = destTransfer == HAL_DATASPACE_TRANSFER_SRGB; | 
 |  | 
 |     return !(isSourceLinear && isDestSRGB) && !(isSourceSRGB && isDestLinear) && | 
 |             sourceTransfer != destTransfer; | 
 | } | 
 |  | 
 | void SkiaGLRenderEngine::mapExternalTextureBuffer(const sp<GraphicBuffer>& buffer, | 
 |                                                   bool isRenderable) { | 
 |     // Only run this if RE is running on its own thread. This way the access to GL | 
 |     // operations is guaranteed to be happening on the same thread. | 
 |     if (mRenderEngineType != RenderEngineType::SKIA_GL_THREADED) { | 
 |         return; | 
 |     } | 
 |     // We currently don't attempt to map a buffer if the buffer contains protected content | 
 |     // because GPU resources for protected buffers is much more limited. | 
 |     const bool isProtectedBuffer = buffer->getUsage() & GRALLOC_USAGE_PROTECTED; | 
 |     if (isProtectedBuffer) { | 
 |         return; | 
 |     } | 
 |     ATRACE_CALL(); | 
 |  | 
 |     // If we were to support caching protected buffers then we will need to switch the | 
 |     // currently bound context if we are not already using the protected context (and subsequently | 
 |     // switch back after the buffer is cached).  However, for non-protected content we can bind | 
 |     // the texture in either GL context because they are initialized with the same share_context | 
 |     // which allows the texture state to be shared between them. | 
 |     auto grContext = getActiveGrContext(); | 
 |     auto& cache = mTextureCache; | 
 |  | 
 |     std::lock_guard<std::mutex> lock(mRenderingMutex); | 
 |     mGraphicBufferExternalRefs[buffer->getId()]++; | 
 |  | 
 |     if (const auto& iter = cache.find(buffer->getId()); iter == cache.end()) { | 
 |         std::shared_ptr<AutoBackendTexture::LocalRef> imageTextureRef = | 
 |                 std::make_shared<AutoBackendTexture::LocalRef>(grContext, | 
 |                                                                buffer->toAHardwareBuffer(), | 
 |                                                                isRenderable, mTextureCleanupMgr); | 
 |         cache.insert({buffer->getId(), imageTextureRef}); | 
 |     } | 
 | } | 
 |  | 
 | void SkiaGLRenderEngine::unmapExternalTextureBuffer(const sp<GraphicBuffer>& buffer) { | 
 |     ATRACE_CALL(); | 
 |     std::lock_guard<std::mutex> lock(mRenderingMutex); | 
 |     if (const auto& iter = mGraphicBufferExternalRefs.find(buffer->getId()); | 
 |         iter != mGraphicBufferExternalRefs.end()) { | 
 |         if (iter->second == 0) { | 
 |             ALOGW("Attempted to unmap GraphicBuffer <id: %" PRId64 | 
 |                   "> from RenderEngine texture, but the " | 
 |                   "ref count was already zero!", | 
 |                   buffer->getId()); | 
 |             mGraphicBufferExternalRefs.erase(buffer->getId()); | 
 |             return; | 
 |         } | 
 |  | 
 |         iter->second--; | 
 |  | 
 |         // Swap contexts if needed prior to deleting this buffer | 
 |         // See Issue 1 of | 
 |         // https://www.khronos.org/registry/EGL/extensions/EXT/EGL_EXT_protected_content.txt: even | 
 |         // when a protected context and an unprotected context are part of the same share group, | 
 |         // protected surfaces may not be accessed by an unprotected context, implying that protected | 
 |         // surfaces may only be freed when a protected context is active. | 
 |         const bool inProtected = mInProtectedContext; | 
 |         useProtectedContext(buffer->getUsage() & GRALLOC_USAGE_PROTECTED); | 
 |  | 
 |         if (iter->second == 0) { | 
 |             mTextureCache.erase(buffer->getId()); | 
 |             mGraphicBufferExternalRefs.erase(buffer->getId()); | 
 |         } | 
 |  | 
 |         // Swap back to the previous context so that cached values of isProtected in SurfaceFlinger | 
 |         // are up-to-date. | 
 |         if (inProtected != mInProtectedContext) { | 
 |             useProtectedContext(inProtected); | 
 |         } | 
 |     } | 
 | } | 
 |  | 
 | bool SkiaGLRenderEngine::canSkipPostRenderCleanup() const { | 
 |     std::lock_guard<std::mutex> lock(mRenderingMutex); | 
 |     return mTextureCleanupMgr.isEmpty(); | 
 | } | 
 |  | 
 | void SkiaGLRenderEngine::cleanupPostRender() { | 
 |     ATRACE_CALL(); | 
 |     std::lock_guard<std::mutex> lock(mRenderingMutex); | 
 |     mTextureCleanupMgr.cleanup(); | 
 | } | 
 |  | 
 | // Helper class intended to be used on the stack to ensure that texture cleanup | 
 | // is deferred until after this class goes out of scope. | 
 | class DeferTextureCleanup final { | 
 | public: | 
 |     DeferTextureCleanup(AutoBackendTexture::CleanupManager& mgr) : mMgr(mgr) { | 
 |         mMgr.setDeferredStatus(true); | 
 |     } | 
 |     ~DeferTextureCleanup() { mMgr.setDeferredStatus(false); } | 
 |  | 
 | private: | 
 |     DISALLOW_COPY_AND_ASSIGN(DeferTextureCleanup); | 
 |     AutoBackendTexture::CleanupManager& mMgr; | 
 | }; | 
 |  | 
 | sk_sp<SkShader> SkiaGLRenderEngine::createRuntimeEffectShader( | 
 |         sk_sp<SkShader> shader, | 
 |         const LayerSettings* layer, const DisplaySettings& display, bool undoPremultipliedAlpha, | 
 |         bool requiresLinearEffect) { | 
 |     const auto stretchEffect = layer->stretchEffect; | 
 |     // The given surface will be stretched by HWUI via matrix transformation | 
 |     // which gets similar results for most surfaces | 
 |     // Determine later on if we need to leverage the stertch shader within | 
 |     // surface flinger | 
 |     if (stretchEffect.hasEffect()) { | 
 |         const auto targetBuffer = layer->source.buffer.buffer; | 
 |         const auto graphicBuffer = targetBuffer ? targetBuffer->getBuffer() : nullptr; | 
 |         if (graphicBuffer && shader) { | 
 |             shader = mStretchShaderFactory.createSkShader(shader, stretchEffect); | 
 |         } | 
 |     } | 
 |  | 
 |     if (requiresLinearEffect) { | 
 |         const ui::Dataspace inputDataspace = | 
 |                 mUseColorManagement ? layer->sourceDataspace : ui::Dataspace::V0_SRGB_LINEAR; | 
 |         const ui::Dataspace outputDataspace = | 
 |                 mUseColorManagement ? display.outputDataspace : ui::Dataspace::V0_SRGB_LINEAR; | 
 |  | 
 |         LinearEffect effect = LinearEffect{.inputDataspace = inputDataspace, | 
 |                                            .outputDataspace = outputDataspace, | 
 |                                            .undoPremultipliedAlpha = undoPremultipliedAlpha}; | 
 |  | 
 |         auto effectIter = mRuntimeEffects.find(effect); | 
 |         sk_sp<SkRuntimeEffect> runtimeEffect = nullptr; | 
 |         if (effectIter == mRuntimeEffects.end()) { | 
 |             runtimeEffect = buildRuntimeEffect(effect); | 
 |             mRuntimeEffects.insert({effect, runtimeEffect}); | 
 |         } else { | 
 |             runtimeEffect = effectIter->second; | 
 |         } | 
 |         float maxLuminance = layer->source.buffer.maxLuminanceNits; | 
 |         // If the buffer doesn't have a max luminance, treat it as SDR & use the display's SDR | 
 |         // white point | 
 |         if (maxLuminance <= 0.f) { | 
 |             maxLuminance = display.sdrWhitePointNits; | 
 |         } | 
 |         return createLinearEffectShader(shader, effect, runtimeEffect, layer->colorTransform, | 
 |                                         display.maxLuminance, maxLuminance); | 
 |     } | 
 |     return shader; | 
 | } | 
 |  | 
 | void SkiaGLRenderEngine::initCanvas(SkCanvas* canvas, const DisplaySettings& display) { | 
 |     if (CC_UNLIKELY(mCapture->isCaptureRunning())) { | 
 |         // Record display settings when capture is running. | 
 |         std::stringstream displaySettings; | 
 |         PrintTo(display, &displaySettings); | 
 |         // Store the DisplaySettings in additional information. | 
 |         canvas->drawAnnotation(SkRect::MakeEmpty(), "DisplaySettings", | 
 |                                SkData::MakeWithCString(displaySettings.str().c_str())); | 
 |     } | 
 |  | 
 |     // Before doing any drawing, let's make sure that we'll start at the origin of the display. | 
 |     // Some displays don't start at 0,0 for example when we're mirroring the screen. Also, virtual | 
 |     // displays might have different scaling when compared to the physical screen. | 
 |  | 
 |     canvas->clipRect(getSkRect(display.physicalDisplay)); | 
 |     canvas->translate(display.physicalDisplay.left, display.physicalDisplay.top); | 
 |  | 
 |     const auto clipWidth = display.clip.width(); | 
 |     const auto clipHeight = display.clip.height(); | 
 |     auto rotatedClipWidth = clipWidth; | 
 |     auto rotatedClipHeight = clipHeight; | 
 |     // Scale is contingent on the rotation result. | 
 |     if (display.orientation & ui::Transform::ROT_90) { | 
 |         std::swap(rotatedClipWidth, rotatedClipHeight); | 
 |     } | 
 |     const auto scaleX = static_cast<SkScalar>(display.physicalDisplay.width()) / | 
 |             static_cast<SkScalar>(rotatedClipWidth); | 
 |     const auto scaleY = static_cast<SkScalar>(display.physicalDisplay.height()) / | 
 |             static_cast<SkScalar>(rotatedClipHeight); | 
 |     canvas->scale(scaleX, scaleY); | 
 |  | 
 |     // Canvas rotation is done by centering the clip window at the origin, rotating, translating | 
 |     // back so that the top left corner of the clip is at (0, 0). | 
 |     canvas->translate(rotatedClipWidth / 2, rotatedClipHeight / 2); | 
 |     canvas->rotate(toDegrees(display.orientation)); | 
 |     canvas->translate(-clipWidth / 2, -clipHeight / 2); | 
 |     canvas->translate(-display.clip.left, -display.clip.top); | 
 | } | 
 |  | 
 | class AutoSaveRestore { | 
 | public: | 
 |     AutoSaveRestore(SkCanvas* canvas) : mCanvas(canvas) { mSaveCount = canvas->save(); } | 
 |     ~AutoSaveRestore() { restore(); } | 
 |     void replace(SkCanvas* canvas) { | 
 |         mCanvas = canvas; | 
 |         mSaveCount = canvas->save(); | 
 |     } | 
 |     void restore() { | 
 |         if (mCanvas) { | 
 |             mCanvas->restoreToCount(mSaveCount); | 
 |             mCanvas = nullptr; | 
 |         } | 
 |     } | 
 |  | 
 | private: | 
 |     SkCanvas* mCanvas; | 
 |     int mSaveCount; | 
 | }; | 
 |  | 
 | static SkRRect getBlurRRect(const BlurRegion& region) { | 
 |     const auto rect = SkRect::MakeLTRB(region.left, region.top, region.right, region.bottom); | 
 |     const SkVector radii[4] = {SkVector::Make(region.cornerRadiusTL, region.cornerRadiusTL), | 
 |                                SkVector::Make(region.cornerRadiusTR, region.cornerRadiusTR), | 
 |                                SkVector::Make(region.cornerRadiusBR, region.cornerRadiusBR), | 
 |                                SkVector::Make(region.cornerRadiusBL, region.cornerRadiusBL)}; | 
 |     SkRRect roundedRect; | 
 |     roundedRect.setRectRadii(rect, radii); | 
 |     return roundedRect; | 
 | } | 
 |  | 
 | status_t SkiaGLRenderEngine::drawLayers(const DisplaySettings& display, | 
 |                                         const std::vector<const LayerSettings*>& layers, | 
 |                                         const std::shared_ptr<ExternalTexture>& buffer, | 
 |                                         const bool /*useFramebufferCache*/, | 
 |                                         base::unique_fd&& bufferFence, base::unique_fd* drawFence) { | 
 |     ATRACE_NAME("SkiaGL::drawLayers"); | 
 |  | 
 |     std::lock_guard<std::mutex> lock(mRenderingMutex); | 
 |     if (layers.empty()) { | 
 |         ALOGV("Drawing empty layer stack"); | 
 |         return NO_ERROR; | 
 |     } | 
 |  | 
 |     if (bufferFence.get() >= 0) { | 
 |         // Duplicate the fence for passing to waitFence. | 
 |         base::unique_fd bufferFenceDup(dup(bufferFence.get())); | 
 |         if (bufferFenceDup < 0 || !waitFence(std::move(bufferFenceDup))) { | 
 |             ATRACE_NAME("Waiting before draw"); | 
 |             sync_wait(bufferFence.get(), -1); | 
 |         } | 
 |     } | 
 |     if (buffer == nullptr) { | 
 |         ALOGE("No output buffer provided. Aborting GPU composition."); | 
 |         return BAD_VALUE; | 
 |     } | 
 |  | 
 |     validateOutputBufferUsage(buffer->getBuffer()); | 
 |  | 
 |     auto grContext = getActiveGrContext(); | 
 |     auto& cache = mTextureCache; | 
 |  | 
 |     // any AutoBackendTexture deletions will now be deferred until cleanupPostRender is called | 
 |     DeferTextureCleanup dtc(mTextureCleanupMgr); | 
 |  | 
 |     std::shared_ptr<AutoBackendTexture::LocalRef> surfaceTextureRef; | 
 |     if (const auto& it = cache.find(buffer->getBuffer()->getId()); it != cache.end()) { | 
 |         surfaceTextureRef = it->second; | 
 |     } else { | 
 |         surfaceTextureRef = | 
 |                 std::make_shared<AutoBackendTexture::LocalRef>(grContext, | 
 |                                                                buffer->getBuffer() | 
 |                                                                        ->toAHardwareBuffer(), | 
 |                                                                true, mTextureCleanupMgr); | 
 |     } | 
 |  | 
 |     const ui::Dataspace dstDataspace = | 
 |             mUseColorManagement ? display.outputDataspace : ui::Dataspace::V0_SRGB_LINEAR; | 
 |     sk_sp<SkSurface> dstSurface = surfaceTextureRef->getOrCreateSurface(dstDataspace, grContext); | 
 |  | 
 |     SkCanvas* dstCanvas = mCapture->tryCapture(dstSurface.get()); | 
 |     if (dstCanvas == nullptr) { | 
 |         ALOGE("Cannot acquire canvas from Skia."); | 
 |         return BAD_VALUE; | 
 |     } | 
 |  | 
 |     // setup color filter if necessary | 
 |     sk_sp<SkColorFilter> displayColorTransform; | 
 |     if (display.colorTransform != mat4()) { | 
 |         displayColorTransform = SkColorFilters::Matrix(toSkColorMatrix(display.colorTransform)); | 
 |     } | 
 |     const bool ctModifiesAlpha = | 
 |             displayColorTransform && !displayColorTransform->isAlphaUnchanged(); | 
 |  | 
 |     // Find if any layers have requested blur, we'll use that info to decide when to render to an | 
 |     // offscreen buffer and when to render to the native buffer. | 
 |     sk_sp<SkSurface> activeSurface(dstSurface); | 
 |     SkCanvas* canvas = dstCanvas; | 
 |     SkiaCapture::OffscreenState offscreenCaptureState; | 
 |     const LayerSettings* blurCompositionLayer = nullptr; | 
 |     if (mBlurFilter) { | 
 |         bool requiresCompositionLayer = false; | 
 |         for (const auto& layer : layers) { | 
 |             // if the layer doesn't have blur or it is not visible then continue | 
 |             if (!layerHasBlur(layer, ctModifiesAlpha)) { | 
 |                 continue; | 
 |             } | 
 |             if (layer->backgroundBlurRadius > 0 && | 
 |                 layer->backgroundBlurRadius < BlurFilter::kMaxCrossFadeRadius) { | 
 |                 requiresCompositionLayer = true; | 
 |             } | 
 |             for (auto region : layer->blurRegions) { | 
 |                 if (region.blurRadius < BlurFilter::kMaxCrossFadeRadius) { | 
 |                     requiresCompositionLayer = true; | 
 |                 } | 
 |             } | 
 |             if (requiresCompositionLayer) { | 
 |                 activeSurface = dstSurface->makeSurface(dstSurface->imageInfo()); | 
 |                 canvas = mCapture->tryOffscreenCapture(activeSurface.get(), &offscreenCaptureState); | 
 |                 blurCompositionLayer = layer; | 
 |                 break; | 
 |             } | 
 |         } | 
 |     } | 
 |  | 
 |     AutoSaveRestore surfaceAutoSaveRestore(canvas); | 
 |     // Clear the entire canvas with a transparent black to prevent ghost images. | 
 |     canvas->clear(SK_ColorTRANSPARENT); | 
 |     initCanvas(canvas, display); | 
 |  | 
 |     // TODO: clearRegion was required for SurfaceView when a buffer is not yet available but the | 
 |     // view is still on-screen. The clear region could be re-specified as a black color layer, | 
 |     // however. | 
 |     if (!display.clearRegion.isEmpty()) { | 
 |         ATRACE_NAME("ClearRegion"); | 
 |         size_t numRects = 0; | 
 |         Rect const* rects = display.clearRegion.getArray(&numRects); | 
 |         SkIRect skRects[numRects]; | 
 |         for (int i = 0; i < numRects; ++i) { | 
 |             skRects[i] = | 
 |                     SkIRect::MakeLTRB(rects[i].left, rects[i].top, rects[i].right, rects[i].bottom); | 
 |         } | 
 |         SkRegion clearRegion; | 
 |         SkPaint paint; | 
 |         sk_sp<SkShader> shader = | 
 |                 SkShaders::Color(SkColor4f{.fR = 0., .fG = 0., .fB = 0., .fA = 1.0}, | 
 |                                  toSkColorSpace(dstDataspace)); | 
 |         paint.setShader(shader); | 
 |         clearRegion.setRects(skRects, numRects); | 
 |         canvas->drawRegion(clearRegion, paint); | 
 |     } | 
 |  | 
 |     for (const auto& layer : layers) { | 
 |         ATRACE_FORMAT("DrawLayer: %s", layer->name.c_str()); | 
 |  | 
 |         if (kPrintLayerSettings) { | 
 |             std::stringstream ls; | 
 |             PrintTo(*layer, &ls); | 
 |             auto debugs = ls.str(); | 
 |             int pos = 0; | 
 |             while (pos < debugs.size()) { | 
 |                 ALOGD("cache_debug %s", debugs.substr(pos, 1000).c_str()); | 
 |                 pos += 1000; | 
 |             } | 
 |         } | 
 |  | 
 |         sk_sp<SkImage> blurInput; | 
 |         if (blurCompositionLayer == layer) { | 
 |             LOG_ALWAYS_FATAL_IF(activeSurface == dstSurface); | 
 |             LOG_ALWAYS_FATAL_IF(canvas == dstCanvas); | 
 |  | 
 |             // save a snapshot of the activeSurface to use as input to the blur shaders | 
 |             blurInput = activeSurface->makeImageSnapshot(); | 
 |  | 
 |             // TODO we could skip this step if we know the blur will cover the entire image | 
 |             //  blit the offscreen framebuffer into the destination AHB | 
 |             SkPaint paint; | 
 |             paint.setBlendMode(SkBlendMode::kSrc); | 
 |             if (CC_UNLIKELY(mCapture->isCaptureRunning())) { | 
 |                 uint64_t id = mCapture->endOffscreenCapture(&offscreenCaptureState); | 
 |                 dstCanvas->drawAnnotation(SkRect::Make(dstCanvas->imageInfo().dimensions()), | 
 |                                           String8::format("SurfaceID|%" PRId64, id).c_str(), | 
 |                                           nullptr); | 
 |                 dstCanvas->drawImage(blurInput, 0, 0, SkSamplingOptions(), &paint); | 
 |             } else { | 
 |                 activeSurface->draw(dstCanvas, 0, 0, SkSamplingOptions(), &paint); | 
 |             } | 
 |  | 
 |             // assign dstCanvas to canvas and ensure that the canvas state is up to date | 
 |             canvas = dstCanvas; | 
 |             surfaceAutoSaveRestore.replace(canvas); | 
 |             initCanvas(canvas, display); | 
 |  | 
 |             LOG_ALWAYS_FATAL_IF(activeSurface->getCanvas()->getSaveCount() != | 
 |                                 dstSurface->getCanvas()->getSaveCount()); | 
 |             LOG_ALWAYS_FATAL_IF(activeSurface->getCanvas()->getTotalMatrix() != | 
 |                                 dstSurface->getCanvas()->getTotalMatrix()); | 
 |  | 
 |             // assign dstSurface to activeSurface | 
 |             activeSurface = dstSurface; | 
 |         } | 
 |  | 
 |         SkAutoCanvasRestore layerAutoSaveRestore(canvas, true); | 
 |         if (CC_UNLIKELY(mCapture->isCaptureRunning())) { | 
 |             // Record the name of the layer if the capture is running. | 
 |             std::stringstream layerSettings; | 
 |             PrintTo(*layer, &layerSettings); | 
 |             // Store the LayerSettings in additional information. | 
 |             canvas->drawAnnotation(SkRect::MakeEmpty(), layer->name.c_str(), | 
 |                                    SkData::MakeWithCString(layerSettings.str().c_str())); | 
 |         } | 
 |         // Layers have a local transform that should be applied to them | 
 |         canvas->concat(getSkM44(layer->geometry.positionTransform).asM33()); | 
 |  | 
 |         const auto [bounds, roundRectClip] = | 
 |                 getBoundsAndClip(layer->geometry.boundaries, layer->geometry.roundedCornersCrop, | 
 |                                  layer->geometry.roundedCornersRadius); | 
 |         if (mBlurFilter && layerHasBlur(layer, ctModifiesAlpha)) { | 
 |             std::unordered_map<uint32_t, sk_sp<SkImage>> cachedBlurs; | 
 |  | 
 |             // if multiple layers have blur, then we need to take a snapshot now because | 
 |             // only the lowest layer will have blurImage populated earlier | 
 |             if (!blurInput) { | 
 |                 blurInput = activeSurface->makeImageSnapshot(); | 
 |             } | 
 |             // rect to be blurred in the coordinate space of blurInput | 
 |             const auto blurRect = canvas->getTotalMatrix().mapRect(bounds.rect()); | 
 |  | 
 |             // if the clip needs to be applied then apply it now and make sure | 
 |             // it is restored before we attempt to draw any shadows. | 
 |             SkAutoCanvasRestore acr(canvas, true); | 
 |             if (!roundRectClip.isEmpty()) { | 
 |                 canvas->clipRRect(roundRectClip, true); | 
 |             } | 
 |  | 
 |             // TODO(b/182216890): Filter out empty layers earlier | 
 |             if (blurRect.width() > 0 && blurRect.height() > 0) { | 
 |                 if (layer->backgroundBlurRadius > 0) { | 
 |                     ATRACE_NAME("BackgroundBlur"); | 
 |                     auto blurredImage = | 
 |                             mBlurFilter->generate(grContext, layer->backgroundBlurRadius, blurInput, | 
 |                                                   blurRect); | 
 |  | 
 |                     cachedBlurs[layer->backgroundBlurRadius] = blurredImage; | 
 |  | 
 |                     mBlurFilter->drawBlurRegion(canvas, bounds, layer->backgroundBlurRadius, 1.0f, | 
 |                                                 blurRect, blurredImage, blurInput); | 
 |                 } | 
 |  | 
 |                 canvas->concat(getSkM44(layer->blurRegionTransform).asM33()); | 
 |                 for (auto region : layer->blurRegions) { | 
 |                     if (cachedBlurs[region.blurRadius] == nullptr) { | 
 |                         ATRACE_NAME("BlurRegion"); | 
 |                         cachedBlurs[region.blurRadius] = | 
 |                                 mBlurFilter->generate(grContext, region.blurRadius, blurInput, | 
 |                                                       blurRect); | 
 |                     } | 
 |  | 
 |                     mBlurFilter->drawBlurRegion(canvas, getBlurRRect(region), region.blurRadius, | 
 |                                                 region.alpha, blurRect, | 
 |                                                 cachedBlurs[region.blurRadius], blurInput); | 
 |                 } | 
 |             } | 
 |         } | 
 |  | 
 |         if (layer->shadow.length > 0) { | 
 |             // This would require a new parameter/flag to SkShadowUtils::DrawShadow | 
 |             LOG_ALWAYS_FATAL_IF(layer->disableBlending, "Cannot disableBlending with a shadow"); | 
 |  | 
 |             SkRRect shadowBounds, shadowClip; | 
 |             if (layer->geometry.boundaries == layer->shadow.boundaries) { | 
 |                 shadowBounds = bounds; | 
 |                 shadowClip = roundRectClip; | 
 |             } else { | 
 |                 std::tie(shadowBounds, shadowClip) = | 
 |                         getBoundsAndClip(layer->shadow.boundaries, | 
 |                                          layer->geometry.roundedCornersCrop, | 
 |                                          layer->geometry.roundedCornersRadius); | 
 |             } | 
 |  | 
 |             // Technically, if bounds is a rect and roundRectClip is not empty, | 
 |             // it means that the bounds and roundedCornersCrop were different | 
 |             // enough that we should intersect them to find the proper shadow. | 
 |             // In practice, this often happens when the two rectangles appear to | 
 |             // not match due to rounding errors. Draw the rounded version, which | 
 |             // looks more like the intent. | 
 |             const auto& rrect = | 
 |                     shadowBounds.isRect() && !shadowClip.isEmpty() ? shadowClip : shadowBounds; | 
 |             drawShadow(canvas, rrect, layer->shadow); | 
 |         } | 
 |  | 
 |         const bool requiresLinearEffect = layer->colorTransform != mat4() || | 
 |                 (mUseColorManagement && | 
 |                  needsToneMapping(layer->sourceDataspace, display.outputDataspace)) || | 
 |                 (display.sdrWhitePointNits > 0.f && | 
 |                  display.sdrWhitePointNits != display.maxLuminance); | 
 |  | 
 |         // quick abort from drawing the remaining portion of the layer | 
 |         if (layer->skipContentDraw || | 
 |             (layer->alpha == 0 && !requiresLinearEffect && !layer->disableBlending && | 
 |              (!displayColorTransform || displayColorTransform->isAlphaUnchanged()))) { | 
 |             continue; | 
 |         } | 
 |  | 
 |         // If we need to map to linear space or color management is disabled, then mark the source | 
 |         // image with the same colorspace as the destination surface so that Skia's color | 
 |         // management is a no-op. | 
 |         const ui::Dataspace layerDataspace = (!mUseColorManagement || requiresLinearEffect) | 
 |                 ? dstDataspace | 
 |                 : layer->sourceDataspace; | 
 |  | 
 |         SkPaint paint; | 
 |         if (layer->source.buffer.buffer) { | 
 |             ATRACE_NAME("DrawImage"); | 
 |             validateInputBufferUsage(layer->source.buffer.buffer->getBuffer()); | 
 |             const auto& item = layer->source.buffer; | 
 |             std::shared_ptr<AutoBackendTexture::LocalRef> imageTextureRef = nullptr; | 
 |  | 
 |             if (const auto& iter = cache.find(item.buffer->getBuffer()->getId()); | 
 |                 iter != cache.end()) { | 
 |                 imageTextureRef = iter->second; | 
 |             } else { | 
 |                 // If we didn't find the image in the cache, then create a local ref but don't cache | 
 |                 // it. If we're using skia, we're guaranteed to run on a dedicated GPU thread so if | 
 |                 // we didn't find anything in the cache then we intentionally did not cache this | 
 |                 // buffer's resources. | 
 |                 imageTextureRef = std::make_shared< | 
 |                         AutoBackendTexture::LocalRef>(grContext, | 
 |                                                       item.buffer->getBuffer()->toAHardwareBuffer(), | 
 |                                                       false, mTextureCleanupMgr); | 
 |             } | 
 |  | 
 |             // isOpaque means we need to ignore the alpha in the image, | 
 |             // replacing it with the alpha specified by the LayerSettings. See | 
 |             // https://developer.android.com/reference/android/view/SurfaceControl.Builder#setOpaque(boolean) | 
 |             // The proper way to do this is to use an SkColorType that ignores | 
 |             // alpha, like kRGB_888x_SkColorType, and that is used if the | 
 |             // incoming image is kRGBA_8888_SkColorType. However, the incoming | 
 |             // image may be kRGBA_F16_SkColorType, for which there is no RGBX | 
 |             // SkColorType, or kRGBA_1010102_SkColorType, for which we have | 
 |             // kRGB_101010x_SkColorType, but it is not yet supported as a source | 
 |             // on the GPU. (Adding both is tracked in skbug.com/12048.) In the | 
 |             // meantime, we'll use a workaround that works unless we need to do | 
 |             // any color conversion. The workaround requires that we pretend the | 
 |             // image is already premultiplied, so that we do not premultiply it | 
 |             // before applying SkBlendMode::kPlus. | 
 |             const bool useIsOpaqueWorkaround = item.isOpaque && | 
 |                     (imageTextureRef->colorType() == kRGBA_1010102_SkColorType || | 
 |                      imageTextureRef->colorType() == kRGBA_F16_SkColorType); | 
 |             const auto alphaType = useIsOpaqueWorkaround ? kPremul_SkAlphaType | 
 |                     : item.isOpaque                      ? kOpaque_SkAlphaType | 
 |                     : item.usePremultipliedAlpha         ? kPremul_SkAlphaType | 
 |                                                          : kUnpremul_SkAlphaType; | 
 |             sk_sp<SkImage> image = imageTextureRef->makeImage(layerDataspace, alphaType, grContext); | 
 |  | 
 |             auto texMatrix = getSkM44(item.textureTransform).asM33(); | 
 |             // textureTansform was intended to be passed directly into a shader, so when | 
 |             // building the total matrix with the textureTransform we need to first | 
 |             // normalize it, then apply the textureTransform, then scale back up. | 
 |             texMatrix.preScale(1.0f / bounds.width(), 1.0f / bounds.height()); | 
 |             texMatrix.postScale(image->width(), image->height()); | 
 |  | 
 |             SkMatrix matrix; | 
 |             if (!texMatrix.invert(&matrix)) { | 
 |                 matrix = texMatrix; | 
 |             } | 
 |             // The shader does not respect the translation, so we add it to the texture | 
 |             // transform for the SkImage. This will make sure that the correct layer contents | 
 |             // are drawn in the correct part of the screen. | 
 |             matrix.postTranslate(bounds.rect().fLeft, bounds.rect().fTop); | 
 |  | 
 |             sk_sp<SkShader> shader; | 
 |  | 
 |             if (layer->source.buffer.useTextureFiltering) { | 
 |                 shader = image->makeShader(SkTileMode::kClamp, SkTileMode::kClamp, | 
 |                                            SkSamplingOptions( | 
 |                                                    {SkFilterMode::kLinear, SkMipmapMode::kNone}), | 
 |                                            &matrix); | 
 |             } else { | 
 |                 shader = image->makeShader(SkSamplingOptions(), matrix); | 
 |             } | 
 |  | 
 |             if (useIsOpaqueWorkaround) { | 
 |                 shader = SkShaders::Blend(SkBlendMode::kPlus, shader, | 
 |                                           SkShaders::Color(SkColors::kBlack, | 
 |                                                            toSkColorSpace(layerDataspace))); | 
 |             } | 
 |  | 
 |             paint.setShader(createRuntimeEffectShader(shader, layer, display, | 
 |                                                       !item.isOpaque && item.usePremultipliedAlpha, | 
 |                                                       requiresLinearEffect)); | 
 |             paint.setAlphaf(layer->alpha); | 
 |         } else { | 
 |             ATRACE_NAME("DrawColor"); | 
 |             const auto color = layer->source.solidColor; | 
 |             sk_sp<SkShader> shader = SkShaders::Color(SkColor4f{.fR = color.r, | 
 |                                                                 .fG = color.g, | 
 |                                                                 .fB = color.b, | 
 |                                                                 .fA = layer->alpha}, | 
 |                                                       toSkColorSpace(layerDataspace)); | 
 |             paint.setShader(createRuntimeEffectShader(shader, layer, display, | 
 |                                                       /* undoPremultipliedAlpha */ false, | 
 |                                                       requiresLinearEffect)); | 
 |         } | 
 |  | 
 |         if (layer->disableBlending) { | 
 |             paint.setBlendMode(SkBlendMode::kSrc); | 
 |         } | 
 |  | 
 |         paint.setColorFilter(displayColorTransform); | 
 |  | 
 |         if (!roundRectClip.isEmpty()) { | 
 |             canvas->clipRRect(roundRectClip, true); | 
 |         } | 
 |  | 
 |         if (!bounds.isRect()) { | 
 |             paint.setAntiAlias(true); | 
 |             canvas->drawRRect(bounds, paint); | 
 |         } else { | 
 |             canvas->drawRect(bounds.rect(), paint); | 
 |         } | 
 |         if (kFlushAfterEveryLayer) { | 
 |             ATRACE_NAME("flush surface"); | 
 |             activeSurface->flush(); | 
 |         } | 
 |     } | 
 |     surfaceAutoSaveRestore.restore(); | 
 |     mCapture->endCapture(); | 
 |     { | 
 |         ATRACE_NAME("flush surface"); | 
 |         LOG_ALWAYS_FATAL_IF(activeSurface != dstSurface); | 
 |         activeSurface->flush(); | 
 |     } | 
 |  | 
 |     if (drawFence != nullptr) { | 
 |         *drawFence = flush(); | 
 |     } | 
 |  | 
 |     // If flush failed or we don't support native fences, we need to force the | 
 |     // gl command stream to be executed. | 
 |     bool requireSync = drawFence == nullptr || drawFence->get() < 0; | 
 |     if (requireSync) { | 
 |         ATRACE_BEGIN("Submit(sync=true)"); | 
 |     } else { | 
 |         ATRACE_BEGIN("Submit(sync=false)"); | 
 |     } | 
 |     bool success = grContext->submit(requireSync); | 
 |     ATRACE_END(); | 
 |     if (!success) { | 
 |         ALOGE("Failed to flush RenderEngine commands"); | 
 |         // Chances are, something illegal happened (either the caller passed | 
 |         // us bad parameters, or we messed up our shader generation). | 
 |         return INVALID_OPERATION; | 
 |     } | 
 |  | 
 |     // checkErrors(); | 
 |     return NO_ERROR; | 
 | } | 
 |  | 
 | inline SkRect SkiaGLRenderEngine::getSkRect(const FloatRect& rect) { | 
 |     return SkRect::MakeLTRB(rect.left, rect.top, rect.right, rect.bottom); | 
 | } | 
 |  | 
 | inline SkRect SkiaGLRenderEngine::getSkRect(const Rect& rect) { | 
 |     return SkRect::MakeLTRB(rect.left, rect.top, rect.right, rect.bottom); | 
 | } | 
 |  | 
 | inline std::pair<SkRRect, SkRRect> SkiaGLRenderEngine::getBoundsAndClip(const FloatRect& boundsRect, | 
 |                                                                         const FloatRect& cropRect, | 
 |                                                                         const float cornerRadius) { | 
 |     const SkRect bounds = getSkRect(boundsRect); | 
 |     const SkRect crop = getSkRect(cropRect); | 
 |  | 
 |     SkRRect clip; | 
 |     if (cornerRadius > 0) { | 
 |         // it the crop and the bounds are equivalent or there is no crop then we don't need a clip | 
 |         if (bounds == crop || crop.isEmpty()) { | 
 |             return {SkRRect::MakeRectXY(bounds, cornerRadius, cornerRadius), clip}; | 
 |         } | 
 |  | 
 |         // This makes an effort to speed up common, simple bounds + clip combinations by | 
 |         // converting them to a single RRect draw. It is possible there are other cases | 
 |         // that can be converted. | 
 |         if (crop.contains(bounds)) { | 
 |             bool intersectionIsRoundRect = true; | 
 |             // check each cropped corner to ensure that it exactly matches the crop or is full | 
 |             SkVector radii[4]; | 
 |  | 
 |             const auto insetCrop = crop.makeInset(cornerRadius, cornerRadius); | 
 |  | 
 |             const bool leftEqual = bounds.fLeft == crop.fLeft; | 
 |             const bool topEqual = bounds.fTop == crop.fTop; | 
 |             const bool rightEqual = bounds.fRight == crop.fRight; | 
 |             const bool bottomEqual = bounds.fBottom == crop.fBottom; | 
 |  | 
 |             // compute the UpperLeft corner radius | 
 |             if (leftEqual && topEqual) { | 
 |                 radii[0].set(cornerRadius, cornerRadius); | 
 |             } else if ((leftEqual && bounds.fTop >= insetCrop.fTop) || | 
 |                        (topEqual && bounds.fLeft >= insetCrop.fLeft) || | 
 |                        insetCrop.contains(bounds.fLeft, bounds.fTop)) { | 
 |                 radii[0].set(0, 0); | 
 |             } else { | 
 |                 intersectionIsRoundRect = false; | 
 |             } | 
 |             // compute the UpperRight corner radius | 
 |             if (rightEqual && topEqual) { | 
 |                 radii[1].set(cornerRadius, cornerRadius); | 
 |             } else if ((rightEqual && bounds.fTop >= insetCrop.fTop) || | 
 |                        (topEqual && bounds.fRight <= insetCrop.fRight) || | 
 |                        insetCrop.contains(bounds.fRight, bounds.fTop)) { | 
 |                 radii[1].set(0, 0); | 
 |             } else { | 
 |                 intersectionIsRoundRect = false; | 
 |             } | 
 |             // compute the BottomRight corner radius | 
 |             if (rightEqual && bottomEqual) { | 
 |                 radii[2].set(cornerRadius, cornerRadius); | 
 |             } else if ((rightEqual && bounds.fBottom <= insetCrop.fBottom) || | 
 |                        (bottomEqual && bounds.fRight <= insetCrop.fRight) || | 
 |                        insetCrop.contains(bounds.fRight, bounds.fBottom)) { | 
 |                 radii[2].set(0, 0); | 
 |             } else { | 
 |                 intersectionIsRoundRect = false; | 
 |             } | 
 |             // compute the BottomLeft corner radius | 
 |             if (leftEqual && bottomEqual) { | 
 |                 radii[3].set(cornerRadius, cornerRadius); | 
 |             } else if ((leftEqual && bounds.fBottom <= insetCrop.fBottom) || | 
 |                        (bottomEqual && bounds.fLeft >= insetCrop.fLeft) || | 
 |                        insetCrop.contains(bounds.fLeft, bounds.fBottom)) { | 
 |                 radii[3].set(0, 0); | 
 |             } else { | 
 |                 intersectionIsRoundRect = false; | 
 |             } | 
 |  | 
 |             if (intersectionIsRoundRect) { | 
 |                 SkRRect intersectionBounds; | 
 |                 intersectionBounds.setRectRadii(bounds, radii); | 
 |                 return {intersectionBounds, clip}; | 
 |             } | 
 |         } | 
 |  | 
 |         // we didn't it any of our fast paths so set the clip to the cropRect | 
 |         clip.setRectXY(crop, cornerRadius, cornerRadius); | 
 |     } | 
 |  | 
 |     // if we hit this point then we either don't have rounded corners or we are going to rely | 
 |     // on the clip to round the corners for us | 
 |     return {SkRRect::MakeRect(bounds), clip}; | 
 | } | 
 |  | 
 | inline bool SkiaGLRenderEngine::layerHasBlur(const LayerSettings* layer, | 
 |                                              bool colorTransformModifiesAlpha) { | 
 |     if (layer->backgroundBlurRadius > 0 || layer->blurRegions.size()) { | 
 |         // return false if the content is opaque and would therefore occlude the blur | 
 |         const bool opaqueContent = !layer->source.buffer.buffer || layer->source.buffer.isOpaque; | 
 |         const bool opaqueAlpha = layer->alpha == 1.0f && !colorTransformModifiesAlpha; | 
 |         return layer->skipContentDraw || !(opaqueContent && opaqueAlpha); | 
 |     } | 
 |     return false; | 
 | } | 
 |  | 
 | inline SkColor SkiaGLRenderEngine::getSkColor(const vec4& color) { | 
 |     return SkColorSetARGB(color.a * 255, color.r * 255, color.g * 255, color.b * 255); | 
 | } | 
 |  | 
 | inline SkM44 SkiaGLRenderEngine::getSkM44(const mat4& matrix) { | 
 |     return SkM44(matrix[0][0], matrix[1][0], matrix[2][0], matrix[3][0], | 
 |                  matrix[0][1], matrix[1][1], matrix[2][1], matrix[3][1], | 
 |                  matrix[0][2], matrix[1][2], matrix[2][2], matrix[3][2], | 
 |                  matrix[0][3], matrix[1][3], matrix[2][3], matrix[3][3]); | 
 | } | 
 |  | 
 | inline SkPoint3 SkiaGLRenderEngine::getSkPoint3(const vec3& vector) { | 
 |     return SkPoint3::Make(vector.x, vector.y, vector.z); | 
 | } | 
 |  | 
 | size_t SkiaGLRenderEngine::getMaxTextureSize() const { | 
 |     return mGrContext->maxTextureSize(); | 
 | } | 
 |  | 
 | size_t SkiaGLRenderEngine::getMaxViewportDims() const { | 
 |     return mGrContext->maxRenderTargetSize(); | 
 | } | 
 |  | 
 | void SkiaGLRenderEngine::drawShadow(SkCanvas* canvas, const SkRRect& casterRRect, | 
 |                                     const ShadowSettings& settings) { | 
 |     ATRACE_CALL(); | 
 |     const float casterZ = settings.length / 2.0f; | 
 |     const auto flags = | 
 |             settings.casterIsTranslucent ? kTransparentOccluder_ShadowFlag : kNone_ShadowFlag; | 
 |  | 
 |     SkShadowUtils::DrawShadow(canvas, SkPath::RRect(casterRRect), SkPoint3::Make(0, 0, casterZ), | 
 |                               getSkPoint3(settings.lightPos), settings.lightRadius, | 
 |                               getSkColor(settings.ambientColor), getSkColor(settings.spotColor), | 
 |                               flags); | 
 | } | 
 |  | 
 | EGLContext SkiaGLRenderEngine::createEglContext(EGLDisplay display, EGLConfig config, | 
 |                                                 EGLContext shareContext, | 
 |                                                 std::optional<ContextPriority> contextPriority, | 
 |                                                 Protection protection) { | 
 |     EGLint renderableType = 0; | 
 |     if (config == EGL_NO_CONFIG_KHR) { | 
 |         renderableType = EGL_OPENGL_ES3_BIT; | 
 |     } else if (!eglGetConfigAttrib(display, config, EGL_RENDERABLE_TYPE, &renderableType)) { | 
 |         LOG_ALWAYS_FATAL("can't query EGLConfig RENDERABLE_TYPE"); | 
 |     } | 
 |     EGLint contextClientVersion = 0; | 
 |     if (renderableType & EGL_OPENGL_ES3_BIT) { | 
 |         contextClientVersion = 3; | 
 |     } else if (renderableType & EGL_OPENGL_ES2_BIT) { | 
 |         contextClientVersion = 2; | 
 |     } else if (renderableType & EGL_OPENGL_ES_BIT) { | 
 |         contextClientVersion = 1; | 
 |     } else { | 
 |         LOG_ALWAYS_FATAL("no supported EGL_RENDERABLE_TYPEs"); | 
 |     } | 
 |  | 
 |     std::vector<EGLint> contextAttributes; | 
 |     contextAttributes.reserve(7); | 
 |     contextAttributes.push_back(EGL_CONTEXT_CLIENT_VERSION); | 
 |     contextAttributes.push_back(contextClientVersion); | 
 |     if (contextPriority) { | 
 |         contextAttributes.push_back(EGL_CONTEXT_PRIORITY_LEVEL_IMG); | 
 |         switch (*contextPriority) { | 
 |             case ContextPriority::REALTIME: | 
 |                 contextAttributes.push_back(EGL_CONTEXT_PRIORITY_REALTIME_NV); | 
 |                 break; | 
 |             case ContextPriority::MEDIUM: | 
 |                 contextAttributes.push_back(EGL_CONTEXT_PRIORITY_MEDIUM_IMG); | 
 |                 break; | 
 |             case ContextPriority::LOW: | 
 |                 contextAttributes.push_back(EGL_CONTEXT_PRIORITY_LOW_IMG); | 
 |                 break; | 
 |             case ContextPriority::HIGH: | 
 |             default: | 
 |                 contextAttributes.push_back(EGL_CONTEXT_PRIORITY_HIGH_IMG); | 
 |                 break; | 
 |         } | 
 |     } | 
 |     if (protection == Protection::PROTECTED) { | 
 |         contextAttributes.push_back(EGL_PROTECTED_CONTENT_EXT); | 
 |         contextAttributes.push_back(EGL_TRUE); | 
 |     } | 
 |     contextAttributes.push_back(EGL_NONE); | 
 |  | 
 |     EGLContext context = eglCreateContext(display, config, shareContext, contextAttributes.data()); | 
 |  | 
 |     if (contextClientVersion == 3 && context == EGL_NO_CONTEXT) { | 
 |         // eglGetConfigAttrib indicated we can create GLES 3 context, but we failed, thus | 
 |         // EGL_NO_CONTEXT so that we can abort. | 
 |         if (config != EGL_NO_CONFIG_KHR) { | 
 |             return context; | 
 |         } | 
 |         // If |config| is EGL_NO_CONFIG_KHR, we speculatively try to create GLES 3 context, so we | 
 |         // should try to fall back to GLES 2. | 
 |         contextAttributes[1] = 2; | 
 |         context = eglCreateContext(display, config, shareContext, contextAttributes.data()); | 
 |     } | 
 |  | 
 |     return context; | 
 | } | 
 |  | 
 | std::optional<RenderEngine::ContextPriority> SkiaGLRenderEngine::createContextPriority( | 
 |         const RenderEngineCreationArgs& args) { | 
 |     if (!gl::GLExtensions::getInstance().hasContextPriority()) { | 
 |         return std::nullopt; | 
 |     } | 
 |  | 
 |     switch (args.contextPriority) { | 
 |         case RenderEngine::ContextPriority::REALTIME: | 
 |             if (gl::GLExtensions::getInstance().hasRealtimePriority()) { | 
 |                 return RenderEngine::ContextPriority::REALTIME; | 
 |             } else { | 
 |                 ALOGI("Realtime priority unsupported, degrading gracefully to high priority"); | 
 |                 return RenderEngine::ContextPriority::HIGH; | 
 |             } | 
 |         case RenderEngine::ContextPriority::HIGH: | 
 |         case RenderEngine::ContextPriority::MEDIUM: | 
 |         case RenderEngine::ContextPriority::LOW: | 
 |             return args.contextPriority; | 
 |         default: | 
 |             return std::nullopt; | 
 |     } | 
 | } | 
 |  | 
 | EGLSurface SkiaGLRenderEngine::createPlaceholderEglPbufferSurface(EGLDisplay display, | 
 |                                                                   EGLConfig config, int hwcFormat, | 
 |                                                                   Protection protection) { | 
 |     EGLConfig placeholderConfig = config; | 
 |     if (placeholderConfig == EGL_NO_CONFIG_KHR) { | 
 |         placeholderConfig = chooseEglConfig(display, hwcFormat, /*logConfig*/ true); | 
 |     } | 
 |     std::vector<EGLint> attributes; | 
 |     attributes.reserve(7); | 
 |     attributes.push_back(EGL_WIDTH); | 
 |     attributes.push_back(1); | 
 |     attributes.push_back(EGL_HEIGHT); | 
 |     attributes.push_back(1); | 
 |     if (protection == Protection::PROTECTED) { | 
 |         attributes.push_back(EGL_PROTECTED_CONTENT_EXT); | 
 |         attributes.push_back(EGL_TRUE); | 
 |     } | 
 |     attributes.push_back(EGL_NONE); | 
 |  | 
 |     return eglCreatePbufferSurface(display, placeholderConfig, attributes.data()); | 
 | } | 
 |  | 
 | int SkiaGLRenderEngine::getContextPriority() { | 
 |     int value; | 
 |     eglQueryContext(mEGLDisplay, mEGLContext, EGL_CONTEXT_PRIORITY_LEVEL_IMG, &value); | 
 |     return value; | 
 | } | 
 |  | 
 | void SkiaGLRenderEngine::onPrimaryDisplaySizeChanged(ui::Size size) { | 
 |     // This cache multiplier was selected based on review of cache sizes relative | 
 |     // to the screen resolution. Looking at the worst case memory needed by blur (~1.5x), | 
 |     // shadows (~1x), and general data structures (e.g. vertex buffers) we selected this as a | 
 |     // conservative default based on that analysis. | 
 |     const float SURFACE_SIZE_MULTIPLIER = 3.5f * bytesPerPixel(mDefaultPixelFormat); | 
 |     const int maxResourceBytes = size.width * size.height * SURFACE_SIZE_MULTIPLIER; | 
 |  | 
 |     // start by resizing the current context | 
 |     getActiveGrContext()->setResourceCacheLimit(maxResourceBytes); | 
 |  | 
 |     // if it is possible to switch contexts then we will resize the other context | 
 |     if (useProtectedContext(!mInProtectedContext)) { | 
 |         getActiveGrContext()->setResourceCacheLimit(maxResourceBytes); | 
 |         // reset back to the initial context that was active when this method was called | 
 |         useProtectedContext(!mInProtectedContext); | 
 |     } | 
 | } | 
 |  | 
 | void SkiaGLRenderEngine::dump(std::string& result) { | 
 |     const gl::GLExtensions& extensions = gl::GLExtensions::getInstance(); | 
 |  | 
 |     StringAppendF(&result, "\n ------------RE-----------------\n"); | 
 |     StringAppendF(&result, "EGL implementation : %s\n", extensions.getEGLVersion()); | 
 |     StringAppendF(&result, "%s\n", extensions.getEGLExtensions()); | 
 |     StringAppendF(&result, "GLES: %s, %s, %s\n", extensions.getVendor(), extensions.getRenderer(), | 
 |                   extensions.getVersion()); | 
 |     StringAppendF(&result, "%s\n", extensions.getExtensions()); | 
 |     StringAppendF(&result, "RenderEngine supports protected context: %d\n", | 
 |                   supportsProtectedContent()); | 
 |     StringAppendF(&result, "RenderEngine is in protected context: %d\n", mInProtectedContext); | 
 |     StringAppendF(&result, "RenderEngine shaders cached since last dump/primeCache: %d\n", | 
 |                   mSkSLCacheMonitor.shadersCachedSinceLastCall()); | 
 |  | 
 |     std::vector<ResourcePair> cpuResourceMap = { | 
 |             {"skia/sk_resource_cache/bitmap_", "Bitmaps"}, | 
 |             {"skia/sk_resource_cache/rrect-blur_", "Masks"}, | 
 |             {"skia/sk_resource_cache/rects-blur_", "Masks"}, | 
 |             {"skia/sk_resource_cache/tessellated", "Shadows"}, | 
 |             {"skia", "Other"}, | 
 |     }; | 
 |     SkiaMemoryReporter cpuReporter(cpuResourceMap, false); | 
 |     SkGraphics::DumpMemoryStatistics(&cpuReporter); | 
 |     StringAppendF(&result, "Skia CPU Caches: "); | 
 |     cpuReporter.logTotals(result); | 
 |     cpuReporter.logOutput(result); | 
 |  | 
 |     { | 
 |         std::lock_guard<std::mutex> lock(mRenderingMutex); | 
 |  | 
 |         std::vector<ResourcePair> gpuResourceMap = { | 
 |                 {"texture_renderbuffer", "Texture/RenderBuffer"}, | 
 |                 {"texture", "Texture"}, | 
 |                 {"gr_text_blob_cache", "Text"}, | 
 |                 {"skia", "Other"}, | 
 |         }; | 
 |         SkiaMemoryReporter gpuReporter(gpuResourceMap, true); | 
 |         mGrContext->dumpMemoryStatistics(&gpuReporter); | 
 |         StringAppendF(&result, "Skia's GPU Caches: "); | 
 |         gpuReporter.logTotals(result); | 
 |         gpuReporter.logOutput(result); | 
 |         StringAppendF(&result, "Skia's Wrapped Objects:\n"); | 
 |         gpuReporter.logOutput(result, true); | 
 |  | 
 |         StringAppendF(&result, "RenderEngine tracked buffers: %zu\n", | 
 |                       mGraphicBufferExternalRefs.size()); | 
 |         StringAppendF(&result, "Dumping buffer ids...\n"); | 
 |         for (const auto& [id, refCounts] : mGraphicBufferExternalRefs) { | 
 |             StringAppendF(&result, "- 0x%" PRIx64 " - %d refs \n", id, refCounts); | 
 |         } | 
 |         StringAppendF(&result, "RenderEngine AHB/BackendTexture cache size: %zu\n", | 
 |                       mTextureCache.size()); | 
 |         StringAppendF(&result, "Dumping buffer ids...\n"); | 
 |         // TODO(178539829): It would be nice to know which layer these are coming from and what | 
 |         // the texture sizes are. | 
 |         for (const auto& [id, unused] : mTextureCache) { | 
 |             StringAppendF(&result, "- 0x%" PRIx64 "\n", id); | 
 |         } | 
 |         StringAppendF(&result, "\n"); | 
 |  | 
 |         SkiaMemoryReporter gpuProtectedReporter(gpuResourceMap, true); | 
 |         if (mProtectedGrContext) { | 
 |             mProtectedGrContext->dumpMemoryStatistics(&gpuProtectedReporter); | 
 |         } | 
 |         StringAppendF(&result, "Skia's GPU Protected Caches: "); | 
 |         gpuProtectedReporter.logTotals(result); | 
 |         gpuProtectedReporter.logOutput(result); | 
 |         StringAppendF(&result, "Skia's Protected Wrapped Objects:\n"); | 
 |         gpuProtectedReporter.logOutput(result, true); | 
 |  | 
 |         StringAppendF(&result, "\n"); | 
 |         StringAppendF(&result, "RenderEngine runtime effects: %zu\n", mRuntimeEffects.size()); | 
 |         for (const auto& [linearEffect, unused] : mRuntimeEffects) { | 
 |             StringAppendF(&result, "- inputDataspace: %s\n", | 
 |                           dataspaceDetails( | 
 |                                   static_cast<android_dataspace>(linearEffect.inputDataspace)) | 
 |                                   .c_str()); | 
 |             StringAppendF(&result, "- outputDataspace: %s\n", | 
 |                           dataspaceDetails( | 
 |                                   static_cast<android_dataspace>(linearEffect.outputDataspace)) | 
 |                                   .c_str()); | 
 |             StringAppendF(&result, "undoPremultipliedAlpha: %s\n", | 
 |                           linearEffect.undoPremultipliedAlpha ? "true" : "false"); | 
 |         } | 
 |     } | 
 |     StringAppendF(&result, "\n"); | 
 | } | 
 |  | 
 | } // namespace skia | 
 | } // namespace renderengine | 
 | } // namespace android |