| /* |
| * 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 "Caches.h" |
| #include "Properties.h" |
| #include "RenderThread.h" |
| #include "renderstate/RenderState.h" |
| |
| #include <cutils/log.h> |
| #include <cutils/properties.h> |
| #include <EGL/eglext.h> |
| |
| #define PROPERTY_RENDER_DIRTY_REGIONS "debug.hwui.render_dirty_regions" |
| #define GLES_VERSION 2 |
| |
| #define WAIT_FOR_GPU_COMPLETION 0 |
| |
| // 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"; |
| } |
| } |
| static const char* egl_error_str() { |
| return egl_error_str(eglGetError()); |
| } |
| |
| static bool load_dirty_regions_property() { |
| char buf[PROPERTY_VALUE_MAX]; |
| int len = property_get(PROPERTY_RENDER_DIRTY_REGIONS, buf, "true"); |
| return !strncasecmp("true", buf, len); |
| } |
| |
| EglManager::EglManager(RenderThread& thread) |
| : mRenderThread(thread) |
| , mEglDisplay(EGL_NO_DISPLAY) |
| , mEglConfig(nullptr) |
| , mEglContext(EGL_NO_CONTEXT) |
| , mPBufferSurface(EGL_NO_SURFACE) |
| , mAllowPreserveBuffer(load_dirty_regions_property()) |
| , mCurrentSurface(EGL_NO_SURFACE) |
| , mAtlasMap(nullptr) |
| , mAtlasMapSize(0) { |
| mCanSetPreserveBuffer = mAllowPreserveBuffer; |
| ALOGD("Use EGL_SWAP_BEHAVIOR_PRESERVED: %s", mAllowPreserveBuffer ? "true" : "false"); |
| } |
| |
| 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", egl_error_str()); |
| |
| EGLint major, minor; |
| LOG_ALWAYS_FATAL_IF(eglInitialize(mEglDisplay, &major, &minor) == EGL_FALSE, |
| "Failed to initialize display %p! err=%s", mEglDisplay, egl_error_str()); |
| |
| ALOGI("Initialized EGL, version %d.%d", (int)major, (int)minor); |
| |
| loadConfig(); |
| createContext(); |
| createPBufferSurface(); |
| makeCurrent(mPBufferSurface); |
| mRenderThread.renderState().onGLContextCreated(); |
| initAtlas(); |
| } |
| |
| bool EglManager::hasEglContext() { |
| return mEglDisplay != EGL_NO_DISPLAY; |
| } |
| |
| void EglManager::loadConfig() { |
| EGLint swapBehavior = mCanSetPreserveBuffer ? 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::getStencilSize(), |
| EGL_SURFACE_TYPE, EGL_WINDOW_BIT | swapBehavior, |
| EGL_NONE |
| }; |
| |
| EGLint num_configs = 1; |
| if (!eglChooseConfig(mEglDisplay, attribs, &mEglConfig, num_configs, &num_configs) |
| || num_configs != 1) { |
| // Failed to get a valid config |
| if (mCanSetPreserveBuffer) { |
| ALOGW("Failed to choose config with EGL_SWAP_BEHAVIOR_PRESERVED, retrying without..."); |
| // Try again without dirty regions enabled |
| mCanSetPreserveBuffer = false; |
| loadConfig(); |
| } else { |
| LOG_ALWAYS_FATAL("Failed to choose config, error = %s", egl_error_str()); |
| } |
| } |
| } |
| |
| void EglManager::createContext() { |
| EGLint attribs[] = { EGL_CONTEXT_CLIENT_VERSION, GLES_VERSION, EGL_NONE }; |
| mEglContext = eglCreateContext(mEglDisplay, mEglConfig, EGL_NO_CONTEXT, attribs); |
| LOG_ALWAYS_FATAL_IF(mEglContext == EGL_NO_CONTEXT, |
| "Failed to create context, error = %s", egl_error_str()); |
| } |
| |
| void EglManager::setTextureAtlas(const sp<GraphicBuffer>& buffer, |
| int64_t* map, size_t mapSize) { |
| |
| // Already initialized |
| if (mAtlasBuffer.get()) { |
| ALOGW("Multiple calls to setTextureAtlas!"); |
| delete map; |
| return; |
| } |
| |
| mAtlasBuffer = buffer; |
| mAtlasMap = map; |
| mAtlasMapSize = mapSize; |
| |
| if (hasEglContext()) { |
| initAtlas(); |
| } |
| } |
| |
| void EglManager::initAtlas() { |
| if (mAtlasBuffer.get()) { |
| mRenderThread.renderState().assetAtlas().init(mAtlasBuffer, |
| mAtlasMap, mAtlasMapSize); |
| } |
| } |
| |
| void EglManager::createPBufferSurface() { |
| LOG_ALWAYS_FATAL_IF(mEglDisplay == EGL_NO_DISPLAY, |
| "usePBufferSurface() called on uninitialized GlobalContext!"); |
| |
| if (mPBufferSurface == EGL_NO_SURFACE) { |
| EGLint attribs[] = { EGL_WIDTH, 1, EGL_HEIGHT, 1, EGL_NONE }; |
| mPBufferSurface = eglCreatePbufferSurface(mEglDisplay, mEglConfig, attribs); |
| } |
| } |
| |
| EGLSurface EglManager::createSurface(EGLNativeWindowType window) { |
| initialize(); |
| EGLSurface surface = eglCreateWindowSurface(mEglDisplay, mEglConfig, window, nullptr); |
| LOG_ALWAYS_FATAL_IF(surface == EGL_NO_SURFACE, |
| "Failed to create EGLSurface for window %p, eglErr = %s", |
| (void*) window, egl_error_str()); |
| 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, egl_error_str()); |
| } |
| } |
| |
| void EglManager::destroy() { |
| if (mEglDisplay == EGL_NO_DISPLAY) return; |
| |
| mRenderThread.renderState().onGLContextDestroyed(); |
| eglDestroyContext(mEglDisplay, mEglContext); |
| 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) { |
| if (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)) { |
| LOG_ALWAYS_FATAL("Failed to make current on surface %p, error=%s", |
| (void*)surface, egl_error_str()); |
| } |
| mCurrentSurface = surface; |
| return true; |
| } |
| |
| void EglManager::beginFrame(EGLSurface surface, EGLint* width, EGLint* height) { |
| LOG_ALWAYS_FATAL_IF(surface == EGL_NO_SURFACE, |
| "Tried to beginFrame on EGL_NO_SURFACE!"); |
| makeCurrent(surface); |
| if (width) { |
| eglQuerySurface(mEglDisplay, surface, EGL_WIDTH, width); |
| } |
| if (height) { |
| eglQuerySurface(mEglDisplay, surface, EGL_HEIGHT, height); |
| } |
| eglBeginFrame(mEglDisplay, surface); |
| } |
| |
| bool EglManager::swapBuffers(EGLSurface surface, const SkRect& dirty, |
| EGLint width, EGLint height) { |
| |
| #if WAIT_FOR_GPU_COMPLETION |
| { |
| ATRACE_NAME("Finishing GPU work"); |
| fence(); |
| } |
| #endif |
| |
| #ifdef EGL_KHR_swap_buffers_with_damage |
| if (CC_LIKELY(Properties::swapBuffersWithDamage)) { |
| SkIRect idirty; |
| dirty.roundOut(&idirty); |
| /* |
| * EGL_KHR_swap_buffers_with_damage spec states: |
| * |
| * The rectangles are specified relative to the bottom-left of the surface |
| * and the x and y components of each rectangle specify the bottom-left |
| * position of that rectangle. |
| * |
| * HWUI does everything with 0,0 being top-left, so need to map |
| * the rect |
| */ |
| EGLint y = height - (idirty.y() + idirty.height()); |
| // layout: {x, y, width, height} |
| EGLint rects[4] = { idirty.x(), y, idirty.width(), idirty.height() }; |
| EGLint numrects = dirty.isEmpty() ? 0 : 1; |
| eglSwapBuffersWithDamageKHR(mEglDisplay, surface, rects, numrects); |
| } else { |
| eglSwapBuffers(mEglDisplay, surface); |
| } |
| #else |
| eglSwapBuffers(mEglDisplay, surface); |
| #endif |
| |
| EGLint err = eglGetError(); |
| if (CC_LIKELY(err == EGL_SUCCESS)) { |
| return true; |
| } |
| if (err == EGL_BAD_SURFACE) { |
| // 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_BAD_SURFACE on %p, halting rendering...", surface); |
| 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 (CC_UNLIKELY(!mAllowPreserveBuffer)) return false; |
| |
| bool preserved = false; |
| if (mCanSetPreserveBuffer) { |
| preserved = eglSurfaceAttrib(mEglDisplay, surface, EGL_SWAP_BEHAVIOR, |
| preserve ? EGL_BUFFER_PRESERVED : EGL_BUFFER_DESTROYED); |
| if (CC_UNLIKELY(!preserved)) { |
| ALOGW("Failed to set EGL_SWAP_BEHAVIOR on surface %p, error=%s", |
| (void*) surface, egl_error_str()); |
| } |
| } |
| if (CC_UNLIKELY(!preserved)) { |
| // 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, egl_error_str()); |
| } |
| } |
| |
| return preserved; |
| } |
| |
| } /* namespace renderthread */ |
| } /* namespace uirenderer */ |
| } /* namespace android */ |
