1 files changed, 272 insertions, 0 deletions
diff --git a/libs/hwui/renderthread/OpenGLPipeline.cpp b/libs/hwui/renderthread/OpenGLPipeline.cpp
new file mode 100644
index 000000000000..e1ae58532a02
--- /dev/null
+++ b/libs/hwui/renderthread/OpenGLPipeline.cpp
@@ -0,0 +1,272 @@
+/*
+ * Copyright (C) 2016 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 "OpenGLPipeline.h"
+
+#include "DeferredLayerUpdater.h"
+#include "EglManager.h"
+#include "Frame.h"
+#include "GlLayer.h"
+#include "ProfileRenderer.h"
+#include "renderstate/RenderState.h"
+#include "OpenGLReadback.h"
+
+#include <cutils/properties.h>
+#include <strings.h>
+
+namespace android {
+namespace uirenderer {
+namespace renderthread {
+
+OpenGLPipeline::OpenGLPipeline(RenderThread& thread)
+        :  mEglManager(thread.eglManager())
+        , mRenderThread(thread) {
+}
+
+MakeCurrentResult OpenGLPipeline::makeCurrent() {
+    // TODO: Figure out why this workaround is needed, see b/13913604
+    // In the meantime this matches the behavior of GLRenderer, so it is not a regression
+    EGLint error = 0;
+    bool haveNewSurface = mEglManager.makeCurrent(mEglSurface, &error);
+
+    Caches::getInstance().textureCache.resetMarkInUse(this);
+    if (!haveNewSurface) {
+        return MakeCurrentResult::AlreadyCurrent;
+    }
+    return error ? MakeCurrentResult::Failed : MakeCurrentResult::Succeeded;
+}
+
+Frame OpenGLPipeline::getFrame() {
+    LOG_ALWAYS_FATAL_IF(mEglSurface == EGL_NO_SURFACE,
+                "drawRenderNode called on a context with no surface!");
+    return mEglManager.beginFrame(mEglSurface);
+}
+
+bool OpenGLPipeline::draw(const Frame& frame, const SkRect& screenDirty, const SkRect& dirty,
+        const FrameBuilder::LightGeometry& lightGeometry,
+        LayerUpdateQueue* layerUpdateQueue,
+        const Rect& contentDrawBounds, bool opaque,
+        const BakedOpRenderer::LightInfo& lightInfo,
+        const std::vector< sp<RenderNode> >& renderNodes,
+        FrameInfoVisualizer* profiler) {
+
+    mEglManager.damageFrame(frame, dirty);
+
+    bool drew = false;
+
+
+    auto& caches = Caches::getInstance();
+    FrameBuilder frameBuilder(dirty, frame.width(), frame.height(), lightGeometry, caches);
+
+    frameBuilder.deferLayers(*layerUpdateQueue);
+    layerUpdateQueue->clear();
+
+    frameBuilder.deferRenderNodeScene(renderNodes, contentDrawBounds);
+
+    BakedOpRenderer renderer(caches, mRenderThread.renderState(),
+            opaque, lightInfo);
+    frameBuilder.replayBakedOps<BakedOpDispatcher>(renderer);
+    ProfileRenderer profileRenderer(renderer);
+    profiler->draw(profileRenderer);
+    drew = renderer.didDraw();
+
+    // post frame cleanup
+    caches.clearGarbage();
+    caches.pathCache.trim();
+    caches.tessellationCache.trim();
+
+#if DEBUG_MEMORY_USAGE
+    caches.dumpMemoryUsage();
+#else
+    if (CC_UNLIKELY(Properties::debugLevel & kDebugMemory)) {
+        caches.dumpMemoryUsage();
+    }
+#endif
+
+    return drew;
+}
+
+bool OpenGLPipeline::swapBuffers(const Frame& frame, bool drew, const SkRect& screenDirty,
+        FrameInfo* currentFrameInfo, bool* requireSwap) {
+
+    GL_CHECKPOINT(LOW);
+
+    // Even if we decided to cancel the frame, from the perspective of jank
+    // metrics the frame was swapped at this point
+    currentFrameInfo->markSwapBuffers();
+
+    *requireSwap = drew || mEglManager.damageRequiresSwap();
+
+    if (*requireSwap && (CC_UNLIKELY(!mEglManager.swapBuffers(frame, screenDirty)))) {
+        return false;
+    }
+
+    return *requireSwap;
+}
+
+bool OpenGLPipeline::copyLayerInto(DeferredLayerUpdater* layer, SkBitmap* bitmap) {
+    ATRACE_CALL();
+    // acquire most recent buffer for drawing
+    layer->updateTexImage();
+    layer->apply();
+    return OpenGLReadbackImpl::copyLayerInto(mRenderThread,
+            static_cast<GlLayer&>(*layer->backingLayer()), bitmap);
+}
+
+static Layer* createLayer(RenderState& renderState, uint32_t layerWidth, uint32_t layerHeight,
+        SkColorFilter* colorFilter, int alpha, SkBlendMode mode, bool blend) {
+    GlLayer* layer = new GlLayer(renderState, layerWidth, layerHeight, colorFilter, alpha,
+            mode, blend);
+    Caches::getInstance().textureState().activateTexture(0);
+    layer->generateTexture();
+    return layer;
+}
+
+DeferredLayerUpdater* OpenGLPipeline::createTextureLayer() {
+    mEglManager.initialize();
+    return new DeferredLayerUpdater(mRenderThread.renderState(), createLayer, Layer::Api::OpenGL);
+}
+
+void OpenGLPipeline::onStop() {
+    if (mEglManager.isCurrent(mEglSurface)) {
+        mEglManager.makeCurrent(EGL_NO_SURFACE);
+    }
+}
+
+bool OpenGLPipeline::setSurface(Surface* surface, SwapBehavior swapBehavior) {
+
+    if (mEglSurface != EGL_NO_SURFACE) {
+        mEglManager.destroySurface(mEglSurface);
+        mEglSurface = EGL_NO_SURFACE;
+    }
+
+    if (surface) {
+        mEglSurface = mEglManager.createSurface(surface);
+    }
+
+    if (mEglSurface != EGL_NO_SURFACE) {
+        const bool preserveBuffer = (swapBehavior != SwapBehavior::kSwap_discardBuffer);
+        mBufferPreserved = mEglManager.setPreserveBuffer(mEglSurface, preserveBuffer);
+        return true;
+    }
+
+    return false;
+}
+
+bool OpenGLPipeline::isSurfaceReady() {
+    return CC_UNLIKELY(mEglSurface != EGL_NO_SURFACE);
+}
+
+bool OpenGLPipeline::isContextReady() {
+    return CC_LIKELY(mEglManager.hasEglContext());
+}
+
+void OpenGLPipeline::onDestroyHardwareResources() {
+    Caches& caches = Caches::getInstance();
+    // Make sure to release all the textures we were owning as there won't
+    // be another draw
+    caches.textureCache.resetMarkInUse(this);
+    mRenderThread.renderState().flush(Caches::FlushMode::Layers);
+}
+
+void OpenGLPipeline::renderLayers(const FrameBuilder::LightGeometry& lightGeometry,
+        LayerUpdateQueue* layerUpdateQueue, bool opaque,
+        const BakedOpRenderer::LightInfo& lightInfo) {
+    static const std::vector< sp<RenderNode> > emptyNodeList;
+    auto& caches = Caches::getInstance();
+    FrameBuilder frameBuilder(*layerUpdateQueue, lightGeometry, caches);
+    layerUpdateQueue->clear();
+    BakedOpRenderer renderer(caches, mRenderThread.renderState(),
+            opaque, lightInfo);
+    LOG_ALWAYS_FATAL_IF(renderer.didDraw(), "shouldn't draw in buildlayer case");
+    frameBuilder.replayBakedOps<BakedOpDispatcher>(renderer);
+}
+
+TaskManager* OpenGLPipeline::getTaskManager() {
+    return &Caches::getInstance().tasks;
+}
+
+static bool layerMatchesWH(OffscreenBuffer* layer, int width, int height) {
+    return layer->viewportWidth == (uint32_t)width && layer->viewportHeight == (uint32_t)height;
+}
+
+bool OpenGLPipeline::createOrUpdateLayer(RenderNode* node,
+        const DamageAccumulator& damageAccumulator) {
+    RenderState& renderState = mRenderThread.renderState();
+    OffscreenBufferPool& layerPool = renderState.layerPool();
+    bool transformUpdateNeeded = false;
+    if (node->getLayer() == nullptr) {
+        node->setLayer(layerPool.get(renderState, node->getWidth(), node->getHeight()));
+        transformUpdateNeeded = true;
+    } else if (!layerMatchesWH(node->getLayer(), node->getWidth(), node->getHeight())) {
+        // TODO: remove now irrelevant, currently enqueued damage (respecting damage ordering)
+        // Or, ideally, maintain damage between frames on node/layer so ordering is always correct
+        if (node->properties().fitsOnLayer()) {
+            node->setLayer(layerPool.resize(node->getLayer(), node->getWidth(), node->getHeight()));
+        } else {
+            destroyLayer(node);
+        }
+        transformUpdateNeeded = true;
+    }
+
+    if (transformUpdateNeeded && node->getLayer()) {
+        // update the transform in window of the layer to reset its origin wrt light source position
+        Matrix4 windowTransform;
+        damageAccumulator.computeCurrentTransform(&windowTransform);
+        node->getLayer()->setWindowTransform(windowTransform);
+    }
+
+    return transformUpdateNeeded;
+}
+
+bool OpenGLPipeline::pinImages(LsaVector<sk_sp<Bitmap>>& images) {
+    TextureCache& cache = Caches::getInstance().textureCache;
+    bool prefetchSucceeded = true;
+    for (auto& bitmapResource : images) {
+        prefetchSucceeded &= cache.prefetchAndMarkInUse(this, bitmapResource.get());
+    }
+    return prefetchSucceeded;
+}
+
+void OpenGLPipeline::unpinImages() {
+    Caches::getInstance().textureCache.resetMarkInUse(this);
+}
+
+void OpenGLPipeline::destroyLayer(RenderNode* node) {
+    if (OffscreenBuffer* layer = node->getLayer()) {
+        layer->renderState.layerPool().putOrDelete(layer);
+        node->setLayer(nullptr);
+    }
+}
+
+void OpenGLPipeline::prepareToDraw(const RenderThread& thread, Bitmap* bitmap) {
+    if (Caches::hasInstance() && thread.eglManager().hasEglContext()) {
+        ATRACE_NAME("Bitmap#prepareToDraw task");
+        Caches::getInstance().textureCache.prefetch(bitmap);
+    }
+}
+
+void OpenGLPipeline::invokeFunctor(const RenderThread& thread, Functor* functor) {
+    DrawGlInfo::Mode mode = DrawGlInfo::kModeProcessNoContext;
+    if (thread.eglManager().hasEglContext()) {
+        mode = DrawGlInfo::kModeProcess;
+    }
+    thread.renderState().invokeFunctor(functor, mode, nullptr);
+}
+
+} /* namespace renderthread */
+} /* namespace uirenderer */
+} /* namespace android */