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/*
* 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 "LayerDrawable.h"
#include "SkiaPipeline.h"
#include "SkiaProfileRenderer.h"
#include "hwui/Bitmap.h"
#include "renderstate/RenderState.h"
#include "renderthread/EglManager.h"
#include "renderthread/Frame.h"
#include "utils/GLUtils.h"
#include "utils/TraceUtils.h"
#include <GrBackendSurface.h>
#include <SkBlendMode.h>
#include <SkImageInfo.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 LightGeometry& lightGeometry,
LayerUpdateQueue* layerUpdateQueue, const Rect& contentDrawBounds,
bool opaque, bool wideColorGamut, const LightInfo& lightInfo,
const std::vector<sp<RenderNode>>& renderNodes,
FrameInfoVisualizer* profiler) {
mEglManager.damageFrame(frame, dirty);
SkColorType colorType;
// setup surface for fbo0
GrGLFramebufferInfo fboInfo;
fboInfo.fFBOID = 0;
if (wideColorGamut) {
fboInfo.fFormat = GL_RGBA16F;
colorType = kRGBA_F16_SkColorType;
} else {
fboInfo.fFormat = GL_RGBA8;
colorType = kN32_SkColorType;
}
GrBackendRenderTarget backendRT(frame.width(), frame.height(), 0, STENCIL_BUFFER_SIZE, fboInfo);
SkSurfaceProps props(0, kUnknown_SkPixelGeometry);
SkASSERT(mRenderThread.getGrContext() != nullptr);
sk_sp<SkSurface> surface(SkSurface::MakeFromBackendRenderTarget(
mRenderThread.getGrContext(), backendRT, kBottomLeft_GrSurfaceOrigin, colorType,
nullptr, &props));
SkiaPipeline::updateLighting(lightGeometry, lightInfo);
renderFrame(*layerUpdateQueue, dirty, renderNodes, opaque, wideColorGamut, 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();
// drop the colorSpace as we only support readback into sRGB or extended sRGB
SkImageInfo surfaceInfo = bitmap->info().makeColorSpace(nullptr);
/* This intermediate surface is present to work around a bug in SwiftShader that
* prevents us from reading the contents of the layer's texture directly. The
* workaround involves first rendering that texture into an intermediate buffer and
* then reading from the intermediate buffer into the bitmap.
*/
sk_sp<SkSurface> tmpSurface = SkSurface::MakeRenderTarget(mRenderThread.getGrContext(),
SkBudgeted::kYes, surfaceInfo);
if (!tmpSurface.get()) {
surfaceInfo = surfaceInfo.makeColorType(SkColorType::kN32_SkColorType);
tmpSurface = SkSurface::MakeRenderTarget(mRenderThread.getGrContext(), SkBudgeted::kYes,
surfaceInfo);
if (!tmpSurface.get()) {
ALOGW("Unable to readback GPU contents into the provided bitmap");
return false;
}
}
Layer* layer = deferredLayer->backingLayer();
const SkRect dstRect = SkRect::MakeIWH(bitmap->width(), bitmap->height());
if (LayerDrawable::DrawLayer(mRenderThread.getGrContext(), tmpSurface->getCanvas(), layer,
&dstRect)) {
sk_sp<SkImage> tmpImage = tmpSurface->makeImageSnapshot();
if (tmpImage->readPixels(surfaceInfo, bitmap->getPixels(), bitmap->rowBytes(), 0, 0)) {
bitmap->notifyPixelsChanged();
return true;
}
// if we fail to readback from the GPU directly (e.g. 565) then we attempt to read into 8888
// and then draw that into the destination format before giving up.
SkBitmap tmpBitmap;
SkImageInfo bitmapInfo =
SkImageInfo::MakeN32(bitmap->width(), bitmap->height(), bitmap->alphaType());
if (tmpBitmap.tryAllocPixels(bitmapInfo) &&
tmpImage->readPixels(bitmapInfo, tmpBitmap.getPixels(), tmpBitmap.rowBytes(), 0, 0)) {
SkCanvas canvas(*bitmap);
SkPaint paint;
paint.setBlendMode(SkBlendMode::kSrc);
canvas.drawBitmap(tmpBitmap, 0, 0, &paint);
bitmap->notifyPixelsChanged();
return true;
}
}
return false;
}
DeferredLayerUpdater* SkiaOpenGLPipeline::createTextureLayer() {
mRenderThread.requireGlContext();
return new DeferredLayerUpdater(mRenderThread.renderState());
}
void SkiaOpenGLPipeline::onStop() {
if (mEglManager.isCurrent(mEglSurface)) {
mEglManager.makeCurrent(EGL_NO_SURFACE);
}
}
bool SkiaOpenGLPipeline::setSurface(Surface* surface, SwapBehavior swapBehavior,
ColorMode colorMode) {
if (mEglSurface != EGL_NO_SURFACE) {
mEglManager.destroySurface(mEglSurface);
mEglSurface = EGL_NO_SURFACE;
}
if (surface) {
mRenderThread.requireGlContext();
const bool wideColorGamut = colorMode == ColorMode::WideColorGamut;
mEglSurface = mEglManager.createSurface(surface, wideColorGamut);
}
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 */
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