1 files changed, 202 insertions, 0 deletions
diff --git a/libs/hwui/pipeline/skia/SkiaOpenGLPipeline.cpp b/libs/hwui/pipeline/skia/SkiaOpenGLPipeline.cpp
new file mode 100644
index 000000000000..ae1313101f3c
--- /dev/null
+++ b/libs/hwui/pipeline/skia/SkiaOpenGLPipeline.cpp
@@ -0,0 +1,202 @@
+/*
+ * 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 "SkiaOpenGLPipeline.h"
+
+#include "DeferredLayerUpdater.h"
+#include "GlLayer.h"
+#include "LayerDrawable.h"
+#include "renderthread/EglManager.h"
+#include "renderthread/Frame.h"
+#include "renderstate/RenderState.h"
+#include "SkiaPipeline.h"
+#include "SkiaProfileRenderer.h"
+#include "utils/TraceUtils.h"
+
+#include <cutils/properties.h>
+#include <strings.h>
+
+using namespace android::uirenderer::renderthread;
+
+namespace android {
+namespace uirenderer {
+namespace skiapipeline {
+
+SkiaOpenGLPipeline::SkiaOpenGLPipeline(RenderThread& thread)
+        : SkiaPipeline(thread)
+        , mEglManager(thread.eglManager()) {
+}
+
+MakeCurrentResult SkiaOpenGLPipeline::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;
+    if (!mEglManager.makeCurrent(mEglSurface, &error)) {
+        return MakeCurrentResult::AlreadyCurrent;
+    }
+    return error ? MakeCurrentResult::Failed : MakeCurrentResult::Succeeded;
+}
+
+Frame SkiaOpenGLPipeline::getFrame() {
+    LOG_ALWAYS_FATAL_IF(mEglSurface == EGL_NO_SURFACE,
+                "drawRenderNode called on a context with no surface!");
+    return mEglManager.beginFrame(mEglSurface);
+}
+
+bool SkiaOpenGLPipeline::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);
+
+    // setup surface for fbo0
+    GrBackendRenderTargetDesc renderTargetDesc;
+    renderTargetDesc.fWidth = frame.width();
+    renderTargetDesc.fHeight = frame.height();
+    renderTargetDesc.fConfig = kRGBA_8888_GrPixelConfig;
+    renderTargetDesc.fOrigin = kBottomLeft_GrSurfaceOrigin;
+    renderTargetDesc.fSampleCnt = 0;
+    renderTargetDesc.fStencilBits = STENCIL_BUFFER_SIZE;
+    renderTargetDesc.fRenderTargetHandle = 0;
+
+    SkSurfaceProps props(0, kUnknown_SkPixelGeometry);
+
+    SkASSERT(mRenderThread.getGrContext() != nullptr);
+    sk_sp<SkSurface> surface(SkSurface::MakeFromBackendRenderTarget(
+            mRenderThread.getGrContext(), renderTargetDesc, &props));
+
+    SkiaPipeline::updateLighting(lightGeometry, lightInfo);
+    renderFrame(*layerUpdateQueue, dirty, renderNodes, opaque, contentDrawBounds, surface);
+    layerUpdateQueue->clear();
+
+    // Draw visual debugging features
+    if (CC_UNLIKELY(Properties::showDirtyRegions
+            || ProfileType::None != Properties::getProfileType())) {
+        SkCanvas* profileCanvas = surface->getCanvas();
+        SkiaProfileRenderer profileRenderer(profileCanvas);
+        profiler->draw(profileRenderer);
+        profileCanvas->flush();
+    }
+
+    // Log memory statistics
+    if (CC_UNLIKELY(Properties::debugLevel != kDebugDisabled)) {
+        dumpResourceCacheUsage();
+    }
+
+    return true;
+}
+
+bool SkiaOpenGLPipeline::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 SkiaOpenGLPipeline::copyLayerInto(DeferredLayerUpdater* deferredLayer, SkBitmap* bitmap) {
+    if (!mRenderThread.getGrContext()) {
+        return false;
+    }
+
+    // acquire most recent buffer for drawing
+    deferredLayer->updateTexImage();
+    deferredLayer->apply();
+
+    SkCanvas canvas(*bitmap);
+    Layer* layer = deferredLayer->backingLayer();
+    return LayerDrawable::DrawLayer(mRenderThread.getGrContext(), &canvas, layer);
+}
+
+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);
+    layer->generateTexture();
+    return layer;
+}
+
+DeferredLayerUpdater* SkiaOpenGLPipeline::createTextureLayer() {
+    mEglManager.initialize();
+    return new DeferredLayerUpdater(mRenderThread.renderState(), createLayer, Layer::Api::OpenGL);
+}
+
+void SkiaOpenGLPipeline::onStop() {
+    if (mEglManager.isCurrent(mEglSurface)) {
+        mEglManager.makeCurrent(EGL_NO_SURFACE);
+    }
+}
+
+bool SkiaOpenGLPipeline::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 SkiaOpenGLPipeline::isSurfaceReady() {
+    return CC_UNLIKELY(mEglSurface != EGL_NO_SURFACE);
+}
+
+bool SkiaOpenGLPipeline::isContextReady() {
+    return CC_LIKELY(mEglManager.hasEglContext());
+}
+
+void SkiaOpenGLPipeline::invokeFunctor(const RenderThread& thread, Functor* functor) {
+    DrawGlInfo::Mode mode = DrawGlInfo::kModeProcessNoContext;
+    if (thread.eglManager().hasEglContext()) {
+        mode = DrawGlInfo::kModeProcess;
+    }
+
+    (*functor)(mode, nullptr);
+
+    // If there's no context we don't need to reset as there's no gl state to save/restore
+    if (mode != DrawGlInfo::kModeProcessNoContext) {
+        thread.getGrContext()->resetContext();
+    }
+}
+
+} /* namespace skiapipeline */
+} /* namespace uirenderer */
+} /* namespace android */