Simplify linkages to Android framework internals

src/utils/android/SkHwuiRenderer.cpp

-/*
- * Copyright 2015 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "SkHwuiRenderer.h"
-
-#include "AnimationContext.h"
-#include "IContextFactory.h"
-#include "SkBitmap.h"
-#include "gui/BufferQueue.h"
-
-namespace {
-
-/**
- * Helper class for setting up android::uirenderer::renderthread::RenderProxy.
- */
-class ContextFactory : public android::uirenderer::IContextFactory {
-public:
-    android::uirenderer::AnimationContext* createAnimationContext
-        (android::uirenderer::renderthread::TimeLord& clock) override {
-        return new android::uirenderer::AnimationContext(clock);
-    }
-};
-
-}
-
-void SkHwuiRenderer::initialize(SkISize size) {
-    this->size = size;
-    android::BufferQueue::createBufferQueue(&this->producer, &this->consumer);
-    this->cpuConsumer = new android::CpuConsumer(this->consumer, 1);
-    this->cpuConsumer->setName(android::String8("SkiaBenchmarkClient"));
-    this->cpuConsumer->setDefaultBufferSize(size.width(), size.height());
-    this->androidSurface = new android::Surface(this->producer);
-    native_window_set_buffers_dimensions(this->androidSurface.get(),
-                                         size.width(), size.height());
-    native_window_set_buffers_format(this->androidSurface.get(),
-                                     android::PIXEL_FORMAT_RGBA_8888);
-    native_window_set_usage(this->androidSurface.get(), GRALLOC_USAGE_SW_READ_OFTEN |
-                                           GRALLOC_USAGE_SW_WRITE_NEVER |
-                                           GRALLOC_USAGE_HW_RENDER);
-    this->rootNode.reset(new android::uirenderer::RenderNode());
-    this->rootNode->incStrong(nullptr);
-    this->rootNode->mutateStagingProperties().setLeftTopRightBottom
-        (0, 0, size.width(), size.height());
-    this->rootNode->mutateStagingProperties().setClipToBounds(false);
-    this->rootNode->setPropertyFieldsDirty(android::uirenderer::RenderNode::GENERIC);
-    ContextFactory factory;
-    this->proxy.reset
-        (new android::uirenderer::renderthread::RenderProxy(false, this->rootNode, &factory));
-    this->proxy->loadSystemProperties();
-    this->proxy->initialize(this->androidSurface.get());
-    float lightX = size.width() / 2.0f;
-    android::uirenderer::Vector3 lightVector { lightX, -200.0f, 800.0f };
-    this->proxy->setup(size.width(), size.height(), 800.0f,
-                         255 * 0.075f, 255 * 0.15f);
-    this->proxy->setLightCenter(lightVector);
-    this->canvas.reset(new android::uirenderer::DisplayListCanvas(size.width(), size.height()));
-}
-
-SkCanvas* SkHwuiRenderer::prepareToDraw() {
-    this->canvas->clipRect(0, 0, this->size.width(), this->size.height(),
-                           SkRegion::Op::kReplace_Op);
-    return this->canvas->asSkCanvas();
-}
-
-void SkHwuiRenderer::finishDrawing() {
-    this->rootNode->setStagingDisplayList(this->canvas->finishRecording());
-    this->proxy->syncAndDrawFrame();
-    // Surprisingly, calling this->proxy->fence() here appears to make no difference to
-    // the timings we record.
-}
-
-bool SkHwuiRenderer::capturePixels(SkBitmap* bmp) {
-    SkImageInfo destinationConfig =
-        SkImageInfo::Make(this->size.width(), this->size.height(),
-                          kRGBA_8888_SkColorType, kPremul_SkAlphaType);
-    bmp->allocPixels(destinationConfig);
-    sk_memset32((uint32_t*) bmp->getPixels(), SK_ColorRED,
-                this->size.width() * this->size.height());
-
-    android::CpuConsumer::LockedBuffer nativeBuffer;
-    android::status_t retval = this->cpuConsumer->lockNextBuffer(&nativeBuffer);
-    if (retval == android::BAD_VALUE) {
-        SkDebugf("write_canvas_png() got no buffer; returning transparent");
-        // No buffer ready to read - commonly triggered by dm sending us
-        // a no-op source, or calling code that doesn't do anything on this
-        // backend.
-        bmp->eraseColor(SK_ColorTRANSPARENT);
-        return false;
-    } else if (retval) {
-        SkDebugf("Failed to lock buffer to read pixels: %d.", retval);
-        return false;
-    }
-
-    // Move the pixels into the destination SkBitmap
-
-    SK_ALWAYSBREAK(nativeBuffer.format == android::PIXEL_FORMAT_RGBA_8888 &&
-                   "Native buffer not RGBA!");
-    SkImageInfo nativeConfig =
-        SkImageInfo::Make(nativeBuffer.width, nativeBuffer.height,
-                          kRGBA_8888_SkColorType, kPremul_SkAlphaType);
-
-    // Android stride is in pixels, Skia stride is in bytes
-    SkBitmap nativeWrapper;
-    bool success =
-        nativeWrapper.installPixels(nativeConfig, nativeBuffer.data, nativeBuffer.stride * 4);
-    if (!success) {
-        SkDebugf("Failed to wrap HWUI buffer in a SkBitmap");
-        return false;
-    }
-
-    SK_ALWAYSBREAK(bmp->colorType() == kRGBA_8888_SkColorType &&
-                   "Destination buffer not RGBA!");
-    success =
-        nativeWrapper.readPixels(destinationConfig, bmp->getPixels(), bmp->rowBytes(), 0, 0);
-    if (!success) {
-        SkDebugf("Failed to extract pixels from HWUI buffer");
-        return false;
-    }
-
-    this->cpuConsumer->unlockBuffer(nativeBuffer);
-
-    return true;
-}
-