5e43898231
Allows us to remove SK_SUPPORT_LEGACY_GETCLIPBOUNDS flag Change-Id: I7c6665b4eb67c58fe747c07b8b87d58fe9b10120
115 lines
3.6 KiB
C++
115 lines
3.6 KiB
C++
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "GLFunctorDrawable.h"
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#include "GlFunctorLifecycleListener.h"
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#include "RenderNode.h"
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#include "SkClipStack.h"
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#include <private/hwui/DrawGlInfo.h>
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#include <GrContext.h>
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namespace android {
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namespace uirenderer {
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namespace skiapipeline {
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GLFunctorDrawable::~GLFunctorDrawable() {
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if(mListener.get() != nullptr) {
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mListener->onGlFunctorReleased(mFunctor);
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}
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}
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void GLFunctorDrawable::syncFunctor() const {
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(*mFunctor)(DrawGlInfo::kModeSync, nullptr);
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}
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static void setScissor(int viewportHeight, const SkIRect& clip) {
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SkASSERT(!clip.isEmpty());
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// transform to Y-flipped GL space, and prevent negatives
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GLint y = viewportHeight - clip.fBottom;
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GLint height = (viewportHeight - clip.fTop) - y;
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glScissor(clip.fLeft, y, clip.width(), height);
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}
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void GLFunctorDrawable::onDraw(SkCanvas* canvas) {
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if (canvas->getGrContext() == nullptr) {
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SkDEBUGF(("Attempting to draw GLFunctor into an unsupported surface"));
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return;
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}
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canvas->flush();
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if (Properties::getRenderPipelineType() == RenderPipelineType::SkiaVulkan) {
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canvas->clear(SK_ColorRED);
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return;
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}
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SkImageInfo canvasInfo = canvas->imageInfo();
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SkMatrix44 mat4(canvas->getTotalMatrix());
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SkIRect ibounds = canvas->getDeviceClipBounds();
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DrawGlInfo info;
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info.clipLeft = ibounds.fLeft;
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info.clipTop = ibounds.fTop;
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info.clipRight = ibounds.fRight;
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info.clipBottom = ibounds.fBottom;
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// info.isLayer = hasLayer();
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info.isLayer = false;
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info.width = canvasInfo.width();
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info.height = canvasInfo.height();
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mat4.asColMajorf(&info.transform[0]);
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//apply a simple clip with a scissor or a complex clip with a stencil
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SkRegion clipRegion;
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canvas->temporary_internal_getRgnClip(&clipRegion);
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if (CC_UNLIKELY(clipRegion.isComplex())) {
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//It is only a temporary solution to use a scissor to draw the stencil.
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//There is a bug 31489986 to implement efficiently non-rectangular clips.
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glDisable(GL_SCISSOR_TEST);
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glDisable(GL_STENCIL_TEST);
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glStencilMask(0xff);
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glClearStencil(0);
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glClear(GL_STENCIL_BUFFER_BIT);
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glEnable(GL_SCISSOR_TEST);
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SkRegion::Cliperator it(clipRegion, ibounds);
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while (!it.done()) {
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setScissor(info.height, it.rect());
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glClearStencil(0x1);
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glClear(GL_STENCIL_BUFFER_BIT);
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it.next();
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}
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glDisable(GL_SCISSOR_TEST);
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glStencilFunc(GL_EQUAL, 0x1, 0xff);
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glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
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glEnable(GL_STENCIL_TEST);
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} else if (clipRegion.isEmpty()) {
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glDisable(GL_STENCIL_TEST);
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glDisable(GL_SCISSOR_TEST);
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} else {
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glDisable(GL_STENCIL_TEST);
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glEnable(GL_SCISSOR_TEST);
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setScissor(info.height, clipRegion.getBounds());
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}
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(*mFunctor)(DrawGlInfo::kModeDraw, &info);
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canvas->getGrContext()->resetContext();
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}
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}; // namespace skiapipeline
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}; // namespace uirenderer
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}; // namespace android
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