| /* | |
| * Copyright (C) 2014 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. | |
| */ | |
| #include "EglManager.h" | |
| #include <cutils/properties.h> | |
| #include <log/log.h> | |
| #include <private/gui/SyncFeatures.h> | |
| #include <utils/Trace.h> | |
| #include "utils/Color.h" | |
| #include "utils/StringUtils.h" | |
| #include "Frame.h" | |
| #include "Properties.h" | |
| #include <EGL/eglext.h> | |
| #include <GLES/gl.h> | |
| #include <gui/Surface.h> | |
| #include <system/window.h> | |
| #include <string> | |
| #include <vector> | |
| #define GLES_VERSION 2 | |
| // Android-specific addition that is used to show when frames began in systrace | |
| EGLAPI void EGLAPIENTRY eglBeginFrame(EGLDisplay dpy, EGLSurface surface); | |
| namespace android { | |
| namespace uirenderer { | |
| namespace renderthread { | |
| #define ERROR_CASE(x) \ | |
| case x: \ | |
| return #x; | |
| static const char* egl_error_str(EGLint error) { | |
| switch (error) { | |
| ERROR_CASE(EGL_SUCCESS) | |
| ERROR_CASE(EGL_NOT_INITIALIZED) | |
| ERROR_CASE(EGL_BAD_ACCESS) | |
| ERROR_CASE(EGL_BAD_ALLOC) | |
| ERROR_CASE(EGL_BAD_ATTRIBUTE) | |
| ERROR_CASE(EGL_BAD_CONFIG) | |
| ERROR_CASE(EGL_BAD_CONTEXT) | |
| ERROR_CASE(EGL_BAD_CURRENT_SURFACE) | |
| ERROR_CASE(EGL_BAD_DISPLAY) | |
| ERROR_CASE(EGL_BAD_MATCH) | |
| ERROR_CASE(EGL_BAD_NATIVE_PIXMAP) | |
| ERROR_CASE(EGL_BAD_NATIVE_WINDOW) | |
| ERROR_CASE(EGL_BAD_PARAMETER) | |
| ERROR_CASE(EGL_BAD_SURFACE) | |
| ERROR_CASE(EGL_CONTEXT_LOST) | |
| default: | |
| return "Unknown error"; | |
| } | |
| } | |
| const char* EglManager::eglErrorString() { | |
| return egl_error_str(eglGetError()); | |
| } | |
| static struct { | |
| bool bufferAge = false; | |
| bool setDamage = false; | |
| bool noConfigContext = false; | |
| bool pixelFormatFloat = false; | |
| bool glColorSpace = false; | |
| bool scRGB = false; | |
| bool displayP3 = false; | |
| bool contextPriority = false; | |
| bool surfacelessContext = false; | |
| } EglExtensions; | |
| EglManager::EglManager() | |
| : mEglDisplay(EGL_NO_DISPLAY) | |
| , mEglConfig(nullptr) | |
| , mEglConfigWideGamut(nullptr) | |
| , mEglContext(EGL_NO_CONTEXT) | |
| , mPBufferSurface(EGL_NO_SURFACE) | |
| , mCurrentSurface(EGL_NO_SURFACE) | |
| , mHasWideColorGamutSupport(false) {} | |
| EglManager::~EglManager() { | |
| if (hasEglContext()) { | |
| ALOGW("~EglManager() leaked an EGL context"); | |
| } | |
| } | |
| void EglManager::initialize() { | |
| if (hasEglContext()) return; | |
| ATRACE_NAME("Creating EGLContext"); | |
| mEglDisplay = eglGetDisplay(EGL_DEFAULT_DISPLAY); | |
| LOG_ALWAYS_FATAL_IF(mEglDisplay == EGL_NO_DISPLAY, "Failed to get EGL_DEFAULT_DISPLAY! err=%s", | |
| eglErrorString()); | |
| EGLint major, minor; | |
| LOG_ALWAYS_FATAL_IF(eglInitialize(mEglDisplay, &major, &minor) == EGL_FALSE, | |
| "Failed to initialize display %p! err=%s", mEglDisplay, eglErrorString()); | |
| ALOGV("Initialized EGL, version %d.%d", (int)major, (int)minor); | |
| initExtensions(); | |
| // Now that extensions are loaded, pick a swap behavior | |
| if (Properties::enablePartialUpdates) { | |
| // An Adreno driver bug is causing rendering problems for SkiaGL with | |
| // buffer age swap behavior (b/31957043). To temporarily workaround, | |
| // we will use preserved swap behavior. | |
| if (Properties::useBufferAge && EglExtensions.bufferAge) { | |
| mSwapBehavior = SwapBehavior::BufferAge; | |
| } else { | |
| mSwapBehavior = SwapBehavior::Preserved; | |
| } | |
| } | |
| loadConfigs(); | |
| createContext(); | |
| createPBufferSurface(); | |
| makeCurrent(mPBufferSurface, nullptr, /* force */ true); | |
| skcms_Matrix3x3 wideColorGamut; | |
| LOG_ALWAYS_FATAL_IF(!DeviceInfo::get()->getWideColorSpace()->toXYZD50(&wideColorGamut), | |
| "Could not get gamut matrix from wideColorSpace"); | |
| bool hasWideColorSpaceExtension = false; | |
| if (memcmp(&wideColorGamut, &SkNamedGamut::kDCIP3, sizeof(wideColorGamut)) == 0) { | |
| hasWideColorSpaceExtension = EglExtensions.displayP3; | |
| } else if (memcmp(&wideColorGamut, &SkNamedGamut::kSRGB, sizeof(wideColorGamut)) == 0) { | |
| hasWideColorSpaceExtension = EglExtensions.scRGB; | |
| } else { | |
| LOG_ALWAYS_FATAL("Unsupported wide color space."); | |
| } | |
| mHasWideColorGamutSupport = EglExtensions.glColorSpace && hasWideColorSpaceExtension && | |
| mEglConfigWideGamut != EGL_NO_CONFIG_KHR; | |
| } | |
| EGLConfig EglManager::load8BitsConfig(EGLDisplay display, EglManager::SwapBehavior swapBehavior) { | |
| EGLint eglSwapBehavior = | |
| (swapBehavior == SwapBehavior::Preserved) ? EGL_SWAP_BEHAVIOR_PRESERVED_BIT : 0; | |
| EGLint attribs[] = {EGL_RENDERABLE_TYPE, | |
| EGL_OPENGL_ES2_BIT, | |
| EGL_RED_SIZE, | |
| 8, | |
| EGL_GREEN_SIZE, | |
| 8, | |
| EGL_BLUE_SIZE, | |
| 8, | |
| EGL_ALPHA_SIZE, | |
| 8, | |
| EGL_DEPTH_SIZE, | |
| 0, | |
| EGL_CONFIG_CAVEAT, | |
| EGL_NONE, | |
| EGL_STENCIL_SIZE, | |
| STENCIL_BUFFER_SIZE, | |
| EGL_SURFACE_TYPE, | |
| EGL_WINDOW_BIT | eglSwapBehavior, | |
| EGL_NONE}; | |
| EGLConfig config = EGL_NO_CONFIG_KHR; | |
| EGLint numConfigs = 1; | |
| if (!eglChooseConfig(display, attribs, &config, numConfigs, &numConfigs) || numConfigs != 1) { | |
| return EGL_NO_CONFIG_KHR; | |
| } | |
| return config; | |
| } | |
| EGLConfig EglManager::loadFP16Config(EGLDisplay display, SwapBehavior swapBehavior) { | |
| EGLint eglSwapBehavior = | |
| (swapBehavior == SwapBehavior::Preserved) ? EGL_SWAP_BEHAVIOR_PRESERVED_BIT : 0; | |
| // If we reached this point, we have a valid swap behavior | |
| EGLint attribs[] = {EGL_RENDERABLE_TYPE, | |
| EGL_OPENGL_ES2_BIT, | |
| EGL_COLOR_COMPONENT_TYPE_EXT, | |
| EGL_COLOR_COMPONENT_TYPE_FLOAT_EXT, | |
| EGL_RED_SIZE, | |
| 16, | |
| EGL_GREEN_SIZE, | |
| 16, | |
| EGL_BLUE_SIZE, | |
| 16, | |
| EGL_ALPHA_SIZE, | |
| 16, | |
| EGL_DEPTH_SIZE, | |
| 0, | |
| EGL_STENCIL_SIZE, | |
| STENCIL_BUFFER_SIZE, | |
| EGL_SURFACE_TYPE, | |
| EGL_WINDOW_BIT | eglSwapBehavior, | |
| EGL_NONE}; | |
| EGLConfig config = EGL_NO_CONFIG_KHR; | |
| EGLint numConfigs = 1; | |
| if (!eglChooseConfig(display, attribs, &config, numConfigs, &numConfigs) || numConfigs != 1) { | |
| return EGL_NO_CONFIG_KHR; | |
| } | |
| return config; | |
| } | |
| void EglManager::initExtensions() { | |
| auto extensions = StringUtils::split(eglQueryString(mEglDisplay, EGL_EXTENSIONS)); | |
| // For our purposes we don't care if EGL_BUFFER_AGE is a result of | |
| // EGL_EXT_buffer_age or EGL_KHR_partial_update as our usage is covered | |
| // under EGL_KHR_partial_update and we don't need the expanded scope | |
| // that EGL_EXT_buffer_age provides. | |
| EglExtensions.bufferAge = | |
| extensions.has("EGL_EXT_buffer_age") || extensions.has("EGL_KHR_partial_update"); | |
| EglExtensions.setDamage = extensions.has("EGL_KHR_partial_update"); | |
| LOG_ALWAYS_FATAL_IF(!extensions.has("EGL_KHR_swap_buffers_with_damage"), | |
| "Missing required extension EGL_KHR_swap_buffers_with_damage"); | |
| EglExtensions.glColorSpace = extensions.has("EGL_KHR_gl_colorspace"); | |
| EglExtensions.noConfigContext = extensions.has("EGL_KHR_no_config_context"); | |
| EglExtensions.pixelFormatFloat = extensions.has("EGL_EXT_pixel_format_float"); | |
| EglExtensions.scRGB = extensions.has("EGL_EXT_gl_colorspace_scrgb"); | |
| EglExtensions.displayP3 = extensions.has("EGL_EXT_gl_colorspace_display_p3_passthrough"); | |
| EglExtensions.contextPriority = extensions.has("EGL_IMG_context_priority"); | |
| EglExtensions.surfacelessContext = extensions.has("EGL_KHR_surfaceless_context"); | |
| } | |
| bool EglManager::hasEglContext() { | |
| return mEglDisplay != EGL_NO_DISPLAY; | |
| } | |
| void EglManager::loadConfigs() { | |
| // Note: The default pixel format is RGBA_8888, when other formats are | |
| // available, we should check the target pixel format and configure the | |
| // attributes list properly. | |
| mEglConfig = load8BitsConfig(mEglDisplay, mSwapBehavior); | |
| if (mEglConfig == EGL_NO_CONFIG_KHR) { | |
| if (mSwapBehavior == SwapBehavior::Preserved) { | |
| // Try again without dirty regions enabled | |
| ALOGW("Failed to choose config with EGL_SWAP_BEHAVIOR_PRESERVED, retrying without..."); | |
| mSwapBehavior = SwapBehavior::Discard; | |
| mEglConfig = load8BitsConfig(mEglDisplay, mSwapBehavior); | |
| } else { | |
| // Failed to get a valid config | |
| LOG_ALWAYS_FATAL("Failed to choose config, error = %s", eglErrorString()); | |
| } | |
| } | |
| SkColorType wideColorType = DeviceInfo::get()->getWideColorType(); | |
| // When we reach this point, we have a valid swap behavior | |
| if (wideColorType == SkColorType::kRGBA_F16_SkColorType && EglExtensions.pixelFormatFloat) { | |
| mEglConfigWideGamut = loadFP16Config(mEglDisplay, mSwapBehavior); | |
| if (mEglConfigWideGamut == EGL_NO_CONFIG_KHR) { | |
| ALOGE("Device claims wide gamut support, cannot find matching config, error = %s", | |
| eglErrorString()); | |
| EglExtensions.pixelFormatFloat = false; | |
| } | |
| } else if (wideColorType == SkColorType::kN32_SkColorType) { | |
| mEglConfigWideGamut = load8BitsConfig(mEglDisplay, mSwapBehavior); | |
| } | |
| } | |
| void EglManager::createContext() { | |
| std::vector<EGLint> contextAttributes; | |
| contextAttributes.reserve(5); | |
| contextAttributes.push_back(EGL_CONTEXT_CLIENT_VERSION); | |
| contextAttributes.push_back(GLES_VERSION); | |
| if (Properties::contextPriority != 0 && EglExtensions.contextPriority) { | |
| contextAttributes.push_back(EGL_CONTEXT_PRIORITY_LEVEL_IMG); | |
| contextAttributes.push_back(Properties::contextPriority); | |
| } | |
| contextAttributes.push_back(EGL_NONE); | |
| mEglContext = eglCreateContext( | |
| mEglDisplay, EglExtensions.noConfigContext ? ((EGLConfig) nullptr) : mEglConfig, | |
| EGL_NO_CONTEXT, contextAttributes.data()); | |
| LOG_ALWAYS_FATAL_IF(mEglContext == EGL_NO_CONTEXT, "Failed to create context, error = %s", | |
| eglErrorString()); | |
| } | |
| void EglManager::createPBufferSurface() { | |
| LOG_ALWAYS_FATAL_IF(mEglDisplay == EGL_NO_DISPLAY, | |
| "usePBufferSurface() called on uninitialized GlobalContext!"); | |
| if (mPBufferSurface == EGL_NO_SURFACE && !EglExtensions.surfacelessContext) { | |
| EGLint attribs[] = {EGL_WIDTH, 1, EGL_HEIGHT, 1, EGL_NONE}; | |
| mPBufferSurface = eglCreatePbufferSurface(mEglDisplay, mEglConfig, attribs); | |
| } | |
| } | |
| Result<EGLSurface, EGLint> EglManager::createSurface(EGLNativeWindowType window, | |
| ColorMode colorMode, | |
| sk_sp<SkColorSpace> colorSpace) { | |
| LOG_ALWAYS_FATAL_IF(!hasEglContext(), "Not initialized"); | |
| bool wideColorGamut = colorMode == ColorMode::WideColorGamut && mHasWideColorGamutSupport && | |
| EglExtensions.noConfigContext; | |
| // The color space we want to use depends on whether linear blending is turned | |
| // on and whether the app has requested wide color gamut rendering. When wide | |
| // color gamut rendering is off, the app simply renders in the display's native | |
| // color gamut. | |
| // | |
| // When wide gamut rendering is off: | |
| // - Blending is done by default in gamma space, which requires using a | |
| // linear EGL color space (the GPU uses the color values as is) | |
| // - If linear blending is on, we must use the non-linear EGL color space | |
| // (the GPU will perform sRGB to linear and linear to SRGB conversions | |
| // before and after blending) | |
| // | |
| // When wide gamut rendering is on we cannot rely on the GPU performing | |
| // linear blending for us. We use two different color spaces to tag the | |
| // surface appropriately for SurfaceFlinger: | |
| // - Gamma blending (default) requires the use of the non-linear color space | |
| // - Linear blending requires the use of the linear color space | |
| // Not all Android targets support the EGL_GL_COLORSPACE_KHR extension | |
| // We insert to placeholders to set EGL_GL_COLORSPACE_KHR and its value. | |
| // According to section 3.4.1 of the EGL specification, the attributes | |
| // list is considered empty if the first entry is EGL_NONE | |
| EGLint attribs[] = {EGL_NONE, EGL_NONE, EGL_NONE}; | |
| if (EglExtensions.glColorSpace) { | |
| attribs[0] = EGL_GL_COLORSPACE_KHR; | |
| if (wideColorGamut) { | |
| skcms_Matrix3x3 colorGamut; | |
| LOG_ALWAYS_FATAL_IF(!colorSpace->toXYZD50(&colorGamut), | |
| "Could not get gamut matrix from color space"); | |
| if (memcmp(&colorGamut, &SkNamedGamut::kDCIP3, sizeof(colorGamut)) == 0) { | |
| attribs[1] = EGL_GL_COLORSPACE_DISPLAY_P3_PASSTHROUGH_EXT; | |
| } else if (memcmp(&colorGamut, &SkNamedGamut::kSRGB, sizeof(colorGamut)) == 0) { | |
| attribs[1] = EGL_GL_COLORSPACE_SCRGB_EXT; | |
| } else { | |
| LOG_ALWAYS_FATAL("Unreachable: unsupported wide color space."); | |
| } | |
| } else { | |
| attribs[1] = EGL_GL_COLORSPACE_LINEAR_KHR; | |
| } | |
| } | |
| EGLSurface surface = eglCreateWindowSurface( | |
| mEglDisplay, wideColorGamut ? mEglConfigWideGamut : mEglConfig, window, attribs); | |
| if (surface == EGL_NO_SURFACE) { | |
| return Error<EGLint>{eglGetError()}; | |
| } | |
| if (mSwapBehavior != SwapBehavior::Preserved) { | |
| LOG_ALWAYS_FATAL_IF(eglSurfaceAttrib(mEglDisplay, surface, EGL_SWAP_BEHAVIOR, | |
| EGL_BUFFER_DESTROYED) == EGL_FALSE, | |
| "Failed to set swap behavior to destroyed for window %p, eglErr = %s", | |
| (void*)window, eglErrorString()); | |
| } | |
| return surface; | |
| } | |
| void EglManager::destroySurface(EGLSurface surface) { | |
| if (isCurrent(surface)) { | |
| makeCurrent(EGL_NO_SURFACE); | |
| } | |
| if (!eglDestroySurface(mEglDisplay, surface)) { | |
| ALOGW("Failed to destroy surface %p, error=%s", (void*)surface, eglErrorString()); | |
| } | |
| } | |
| void EglManager::destroy() { | |
| if (mEglDisplay == EGL_NO_DISPLAY) return; | |
| eglDestroyContext(mEglDisplay, mEglContext); | |
| if (mPBufferSurface != EGL_NO_SURFACE) { | |
| eglDestroySurface(mEglDisplay, mPBufferSurface); | |
| } | |
| eglMakeCurrent(mEglDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT); | |
| eglTerminate(mEglDisplay); | |
| eglReleaseThread(); | |
| mEglDisplay = EGL_NO_DISPLAY; | |
| mEglContext = EGL_NO_CONTEXT; | |
| mPBufferSurface = EGL_NO_SURFACE; | |
| mCurrentSurface = EGL_NO_SURFACE; | |
| } | |
| bool EglManager::makeCurrent(EGLSurface surface, EGLint* errOut, bool force) { | |
| if (!force && isCurrent(surface)) return false; | |
| if (surface == EGL_NO_SURFACE) { | |
| // Ensure we always have a valid surface & context | |
| surface = mPBufferSurface; | |
| } | |
| if (!eglMakeCurrent(mEglDisplay, surface, surface, mEglContext)) { | |
| if (errOut) { | |
| *errOut = eglGetError(); | |
| ALOGW("Failed to make current on surface %p, error=%s", (void*)surface, | |
| egl_error_str(*errOut)); | |
| } else { | |
| LOG_ALWAYS_FATAL("Failed to make current on surface %p, error=%s", (void*)surface, | |
| eglErrorString()); | |
| } | |
| } | |
| mCurrentSurface = surface; | |
| if (Properties::disableVsync) { | |
| eglSwapInterval(mEglDisplay, 0); | |
| } | |
| return true; | |
| } | |
| EGLint EglManager::queryBufferAge(EGLSurface surface) { | |
| switch (mSwapBehavior) { | |
| case SwapBehavior::Discard: | |
| return 0; | |
| case SwapBehavior::Preserved: | |
| return 1; | |
| case SwapBehavior::BufferAge: | |
| EGLint bufferAge; | |
| eglQuerySurface(mEglDisplay, surface, EGL_BUFFER_AGE_EXT, &bufferAge); | |
| return bufferAge; | |
| } | |
| return 0; | |
| } | |
| Frame EglManager::beginFrame(EGLSurface surface) { | |
| LOG_ALWAYS_FATAL_IF(surface == EGL_NO_SURFACE, "Tried to beginFrame on EGL_NO_SURFACE!"); | |
| makeCurrent(surface); | |
| Frame frame; | |
| frame.mSurface = surface; | |
| eglQuerySurface(mEglDisplay, surface, EGL_WIDTH, &frame.mWidth); | |
| eglQuerySurface(mEglDisplay, surface, EGL_HEIGHT, &frame.mHeight); | |
| frame.mBufferAge = queryBufferAge(surface); | |
| eglBeginFrame(mEglDisplay, surface); | |
| return frame; | |
| } | |
| void EglManager::damageFrame(const Frame& frame, const SkRect& dirty) { | |
| #ifdef EGL_KHR_partial_update | |
| if (EglExtensions.setDamage && mSwapBehavior == SwapBehavior::BufferAge) { | |
| EGLint rects[4]; | |
| frame.map(dirty, rects); | |
| if (!eglSetDamageRegionKHR(mEglDisplay, frame.mSurface, rects, 1)) { | |
| LOG_ALWAYS_FATAL("Failed to set damage region on surface %p, error=%s", | |
| (void*)frame.mSurface, eglErrorString()); | |
| } | |
| } | |
| #endif | |
| } | |
| bool EglManager::damageRequiresSwap() { | |
| return EglExtensions.setDamage && mSwapBehavior == SwapBehavior::BufferAge; | |
| } | |
| bool EglManager::swapBuffers(const Frame& frame, const SkRect& screenDirty) { | |
| if (CC_UNLIKELY(Properties::waitForGpuCompletion)) { | |
| ATRACE_NAME("Finishing GPU work"); | |
| fence(); | |
| } | |
| EGLint rects[4]; | |
| frame.map(screenDirty, rects); | |
| eglSwapBuffersWithDamageKHR(mEglDisplay, frame.mSurface, rects, screenDirty.isEmpty() ? 0 : 1); | |
| EGLint err = eglGetError(); | |
| if (CC_LIKELY(err == EGL_SUCCESS)) { | |
| return true; | |
| } | |
| if (err == EGL_BAD_SURFACE || err == EGL_BAD_NATIVE_WINDOW) { | |
| // For some reason our surface was destroyed out from under us | |
| // This really shouldn't happen, but if it does we can recover easily | |
| // by just not trying to use the surface anymore | |
| ALOGW("swapBuffers encountered EGL error %d on %p, halting rendering...", err, | |
| frame.mSurface); | |
| return false; | |
| } | |
| LOG_ALWAYS_FATAL("Encountered EGL error %d %s during rendering", err, egl_error_str(err)); | |
| // Impossible to hit this, but the compiler doesn't know that | |
| return false; | |
| } | |
| void EglManager::fence() { | |
| EGLSyncKHR fence = eglCreateSyncKHR(mEglDisplay, EGL_SYNC_FENCE_KHR, NULL); | |
| eglClientWaitSyncKHR(mEglDisplay, fence, EGL_SYNC_FLUSH_COMMANDS_BIT_KHR, EGL_FOREVER_KHR); | |
| eglDestroySyncKHR(mEglDisplay, fence); | |
| } | |
| bool EglManager::setPreserveBuffer(EGLSurface surface, bool preserve) { | |
| if (mSwapBehavior != SwapBehavior::Preserved) return false; | |
| bool preserved = eglSurfaceAttrib(mEglDisplay, surface, EGL_SWAP_BEHAVIOR, | |
| preserve ? EGL_BUFFER_PRESERVED : EGL_BUFFER_DESTROYED); | |
| if (!preserved) { | |
| ALOGW("Failed to set EGL_SWAP_BEHAVIOR on surface %p, error=%s", (void*)surface, | |
| eglErrorString()); | |
| // Maybe it's already set? | |
| EGLint swapBehavior; | |
| if (eglQuerySurface(mEglDisplay, surface, EGL_SWAP_BEHAVIOR, &swapBehavior)) { | |
| preserved = (swapBehavior == EGL_BUFFER_PRESERVED); | |
| } else { | |
| ALOGW("Failed to query EGL_SWAP_BEHAVIOR on surface %p, error=%p", (void*)surface, | |
| eglErrorString()); | |
| } | |
| } | |
| return preserved; | |
| } | |
| status_t EglManager::fenceWait(sp<Fence>& fence) { | |
| if (!hasEglContext()) { | |
| ALOGE("EglManager::fenceWait: EGLDisplay not initialized"); | |
| return INVALID_OPERATION; | |
| } | |
| if (SyncFeatures::getInstance().useWaitSync() && | |
| SyncFeatures::getInstance().useNativeFenceSync()) { | |
| // Block GPU on the fence. | |
| // Create an EGLSyncKHR from the current fence. | |
| int fenceFd = fence->dup(); | |
| if (fenceFd == -1) { | |
| ALOGE("EglManager::fenceWait: error dup'ing fence fd: %d", errno); | |
| return -errno; | |
| } | |
| EGLint attribs[] = {EGL_SYNC_NATIVE_FENCE_FD_ANDROID, fenceFd, EGL_NONE}; | |
| EGLSyncKHR sync = eglCreateSyncKHR(mEglDisplay, EGL_SYNC_NATIVE_FENCE_ANDROID, attribs); | |
| if (sync == EGL_NO_SYNC_KHR) { | |
| close(fenceFd); | |
| ALOGE("EglManager::fenceWait: error creating EGL fence: %#x", eglGetError()); | |
| return UNKNOWN_ERROR; | |
| } | |
| // 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 eglErr = eglGetError(); | |
| eglDestroySyncKHR(mEglDisplay, sync); | |
| if (eglErr != EGL_SUCCESS) { | |
| ALOGE("EglManager::fenceWait: error waiting for EGL fence: %#x", eglErr); | |
| return UNKNOWN_ERROR; | |
| } | |
| } else { | |
| // Block CPU on the fence. | |
| status_t err = fence->waitForever("EglManager::fenceWait"); | |
| if (err != NO_ERROR) { | |
| ALOGE("EglManager::fenceWait: error waiting for fence: %d", err); | |
| return err; | |
| } | |
| } | |
| return OK; | |
| } | |
| status_t EglManager::createReleaseFence(bool useFenceSync, EGLSyncKHR* eglFence, | |
| sp<Fence>& nativeFence) { | |
| if (!hasEglContext()) { | |
| ALOGE("EglManager::createReleaseFence: EGLDisplay not initialized"); | |
| return INVALID_OPERATION; | |
| } | |
| if (SyncFeatures::getInstance().useNativeFenceSync()) { | |
| EGLSyncKHR sync = eglCreateSyncKHR(mEglDisplay, EGL_SYNC_NATIVE_FENCE_ANDROID, nullptr); | |
| if (sync == EGL_NO_SYNC_KHR) { | |
| ALOGE("EglManager::createReleaseFence: error creating EGL fence: %#x", eglGetError()); | |
| return UNKNOWN_ERROR; | |
| } | |
| glFlush(); | |
| int fenceFd = eglDupNativeFenceFDANDROID(mEglDisplay, sync); | |
| eglDestroySyncKHR(mEglDisplay, sync); | |
| if (fenceFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) { | |
| ALOGE("EglManager::createReleaseFence: error dup'ing native fence " | |
| "fd: %#x", | |
| eglGetError()); | |
| return UNKNOWN_ERROR; | |
| } | |
| nativeFence = new Fence(fenceFd); | |
| *eglFence = EGL_NO_SYNC_KHR; | |
| } else if (useFenceSync && SyncFeatures::getInstance().useFenceSync()) { | |
| if (*eglFence != EGL_NO_SYNC_KHR) { | |
| // There is already a fence for the current slot. We need to | |
| // wait on that before replacing it with another fence to | |
| // ensure that all outstanding buffer accesses have completed | |
| // before the producer accesses it. | |
| EGLint result = eglClientWaitSyncKHR(mEglDisplay, *eglFence, 0, 1000000000); | |
| if (result == EGL_FALSE) { | |
| ALOGE("EglManager::createReleaseFence: error waiting for previous fence: %#x", | |
| eglGetError()); | |
| return UNKNOWN_ERROR; | |
| } else if (result == EGL_TIMEOUT_EXPIRED_KHR) { | |
| ALOGE("EglManager::createReleaseFence: timeout waiting for previous fence"); | |
| return TIMED_OUT; | |
| } | |
| eglDestroySyncKHR(mEglDisplay, *eglFence); | |
| } | |
| // Create a fence for the outstanding accesses in the current | |
| // OpenGL ES context. | |
| *eglFence = eglCreateSyncKHR(mEglDisplay, EGL_SYNC_FENCE_KHR, nullptr); | |
| if (*eglFence == EGL_NO_SYNC_KHR) { | |
| ALOGE("EglManager::createReleaseFence: error creating fence: %#x", eglGetError()); | |
| return UNKNOWN_ERROR; | |
| } | |
| glFlush(); | |
| } | |
| return OK; | |
| } | |
| } /* namespace renderthread */ | |
| } /* namespace uirenderer */ | |
| } /* namespace android */ |