| /* |
| * Copyright (C) 2015 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 "BakedOpRenderer.h" |
| |
| #include "Caches.h" |
| #include "Glop.h" |
| #include "GlopBuilder.h" |
| #include "renderstate/OffscreenBufferPool.h" |
| #include "renderstate/RenderState.h" |
| #include "utils/GLUtils.h" |
| #include "VertexBuffer.h" |
| |
| #include <algorithm> |
| |
| namespace android { |
| namespace uirenderer { |
| |
| OffscreenBuffer* BakedOpRenderer::startTemporaryLayer(uint32_t width, uint32_t height) { |
| LOG_ALWAYS_FATAL_IF(mRenderTarget.offscreenBuffer, "already has layer..."); |
| |
| OffscreenBuffer* buffer = mRenderState.layerPool().get(mRenderState, width, height); |
| startRepaintLayer(buffer, Rect(width, height)); |
| return buffer; |
| } |
| |
| void BakedOpRenderer::startRepaintLayer(OffscreenBuffer* offscreenBuffer, const Rect& repaintRect) { |
| LOG_ALWAYS_FATAL_IF(mRenderTarget.offscreenBuffer, "already has layer..."); |
| |
| mRenderTarget.offscreenBuffer = offscreenBuffer; |
| |
| // create and bind framebuffer |
| mRenderTarget.frameBufferId = mRenderState.genFramebuffer(); |
| mRenderState.bindFramebuffer(mRenderTarget.frameBufferId); |
| |
| // attach the texture to the FBO |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, |
| offscreenBuffer->texture.id(), 0); |
| GL_CHECKPOINT(LOW); |
| |
| LOG_ALWAYS_FATAL_IF(glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE, |
| "framebuffer incomplete!"); |
| |
| // Change the viewport & ortho projection |
| setViewport(offscreenBuffer->viewportWidth, offscreenBuffer->viewportHeight); |
| |
| clearColorBuffer(repaintRect); |
| } |
| |
| void BakedOpRenderer::endLayer() { |
| if (mRenderTarget.stencil) { |
| // if stencil was used for clipping, detach it and return it to pool |
| glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0); |
| GL_CHECKPOINT(MODERATE); |
| mCaches.renderBufferCache.put(mRenderTarget.stencil); |
| mRenderTarget.stencil = nullptr; |
| } |
| mRenderTarget.lastStencilClip = nullptr; |
| |
| mRenderTarget.offscreenBuffer->updateMeshFromRegion(); |
| mRenderTarget.offscreenBuffer = nullptr; // It's in drawLayerOp's hands now. |
| |
| // Detach the texture from the FBO |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 0, 0); |
| GL_CHECKPOINT(LOW); |
| mRenderState.deleteFramebuffer(mRenderTarget.frameBufferId); |
| mRenderTarget.frameBufferId = 0; |
| } |
| |
| OffscreenBuffer* BakedOpRenderer::copyToLayer(const Rect& area) { |
| OffscreenBuffer* buffer = mRenderState.layerPool().get(mRenderState, |
| area.getWidth(), area.getHeight()); |
| if (!area.isEmpty()) { |
| mCaches.textureState().activateTexture(0); |
| mCaches.textureState().bindTexture(buffer->texture.id()); |
| |
| glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, |
| area.left, mRenderTarget.viewportHeight - area.bottom, |
| area.getWidth(), area.getHeight()); |
| } |
| return buffer; |
| } |
| |
| void BakedOpRenderer::startFrame(uint32_t width, uint32_t height, const Rect& repaintRect) { |
| LOG_ALWAYS_FATAL_IF(mRenderTarget.frameBufferId != 0, "primary framebufferId must be 0"); |
| mRenderState.bindFramebuffer(0); |
| setViewport(width, height); |
| |
| if (!mOpaque) { |
| clearColorBuffer(repaintRect); |
| } |
| |
| mRenderState.debugOverdraw(true, true); |
| } |
| |
| void BakedOpRenderer::endFrame(const Rect& repaintRect) { |
| if (CC_UNLIKELY(Properties::debugOverdraw)) { |
| ClipRect overdrawClip(repaintRect); |
| Rect viewportRect(mRenderTarget.viewportWidth, mRenderTarget.viewportHeight); |
| // overdraw visualization |
| for (int i = 1; i <= 4; i++) { |
| if (i < 4) { |
| // nth level of overdraw tests for n+1 draws per pixel |
| mRenderState.stencil().enableDebugTest(i + 1, false); |
| } else { |
| // 4th level tests for 4 or higher draws per pixel |
| mRenderState.stencil().enableDebugTest(4, true); |
| } |
| |
| SkPaint paint; |
| paint.setColor(mCaches.getOverdrawColor(i)); |
| Glop glop; |
| GlopBuilder(mRenderState, mCaches, &glop) |
| .setRoundRectClipState(nullptr) |
| .setMeshUnitQuad() |
| .setFillPaint(paint, 1.0f) |
| .setTransform(Matrix4::identity(), TransformFlags::None) |
| .setModelViewMapUnitToRect(viewportRect) |
| .build(); |
| renderGlop(nullptr, &overdrawClip, glop); |
| } |
| mRenderState.stencil().disable(); |
| } |
| |
| mCaches.clearGarbage(); |
| mCaches.pathCache.trim(); |
| mCaches.tessellationCache.trim(); |
| |
| #if DEBUG_MEMORY_USAGE |
| mCaches.dumpMemoryUsage(); |
| #else |
| if (Properties::debugLevel & kDebugMemory) { |
| mCaches.dumpMemoryUsage(); |
| } |
| #endif |
| } |
| |
| void BakedOpRenderer::setViewport(uint32_t width, uint32_t height) { |
| mRenderTarget.viewportWidth = width; |
| mRenderTarget.viewportHeight = height; |
| mRenderTarget.orthoMatrix.loadOrtho(width, height); |
| |
| mRenderState.setViewport(width, height); |
| mRenderState.blend().syncEnabled(); |
| } |
| |
| void BakedOpRenderer::clearColorBuffer(const Rect& rect) { |
| if (rect.contains(Rect(mRenderTarget.viewportWidth, mRenderTarget.viewportHeight))) { |
| // Full viewport is being cleared - disable scissor |
| mRenderState.scissor().setEnabled(false); |
| } else { |
| // Requested rect is subset of viewport - scissor to it to avoid over-clearing |
| mRenderState.scissor().setEnabled(true); |
| mRenderState.scissor().set(rect.left, mRenderTarget.viewportHeight - rect.bottom, |
| rect.getWidth(), rect.getHeight()); |
| } |
| glClear(GL_COLOR_BUFFER_BIT); |
| if (!mRenderTarget.frameBufferId) mHasDrawn = true; |
| } |
| |
| Texture* BakedOpRenderer::getTexture(const SkBitmap* bitmap) { |
| Texture* texture = mRenderState.assetAtlas().getEntryTexture(bitmap->pixelRef()); |
| if (!texture) { |
| return mCaches.textureCache.get(bitmap); |
| } |
| return texture; |
| } |
| |
| // clears and re-fills stencil with provided rendertarget space quads, |
| // and then put stencil into test mode |
| void BakedOpRenderer::setupStencilQuads(std::vector<Vertex>& quadVertices, |
| int incrementThreshold) { |
| mRenderState.stencil().enableWrite(incrementThreshold); |
| mRenderState.stencil().clear(); |
| Glop glop; |
| GlopBuilder(mRenderState, mCaches, &glop) |
| .setRoundRectClipState(nullptr) |
| .setMeshIndexedQuads(quadVertices.data(), quadVertices.size() / 4) |
| .setFillBlack() |
| .setTransform(Matrix4::identity(), TransformFlags::None) |
| .setModelViewIdentityEmptyBounds() |
| .build(); |
| mRenderState.render(glop, mRenderTarget.orthoMatrix); |
| mRenderState.stencil().enableTest(incrementThreshold); |
| } |
| |
| void BakedOpRenderer::setupStencilRectList(const ClipBase* clip) { |
| LOG_ALWAYS_FATAL_IF(clip->mode != ClipMode::RectangleList, "can't rectlist clip without rectlist"); |
| auto&& rectList = reinterpret_cast<const ClipRectList*>(clip)->rectList; |
| int quadCount = rectList.getTransformedRectanglesCount(); |
| std::vector<Vertex> rectangleVertices; |
| rectangleVertices.reserve(quadCount * 4); |
| for (int i = 0; i < quadCount; i++) { |
| const TransformedRectangle& tr(rectList.getTransformedRectangle(i)); |
| const Matrix4& transform = tr.getTransform(); |
| Rect bounds = tr.getBounds(); |
| if (transform.rectToRect()) { |
| // If rectToRect, can simply map bounds before storing verts |
| transform.mapRect(bounds); |
| bounds.doIntersect(clip->rect); |
| if (bounds.isEmpty()) { |
| continue; // will be outside of scissor, skip |
| } |
| } |
| |
| rectangleVertices.push_back(Vertex{bounds.left, bounds.top}); |
| rectangleVertices.push_back(Vertex{bounds.right, bounds.top}); |
| rectangleVertices.push_back(Vertex{bounds.left, bounds.bottom}); |
| rectangleVertices.push_back(Vertex{bounds.right, bounds.bottom}); |
| |
| if (!transform.rectToRect()) { |
| // If not rectToRect, must map each point individually |
| for (auto cur = rectangleVertices.end() - 4; cur < rectangleVertices.end(); cur++) { |
| transform.mapPoint(cur->x, cur->y); |
| } |
| } |
| } |
| setupStencilQuads(rectangleVertices, rectList.getTransformedRectanglesCount()); |
| } |
| |
| void BakedOpRenderer::setupStencilRegion(const ClipBase* clip) { |
| LOG_ALWAYS_FATAL_IF(clip->mode != ClipMode::Region, "can't region clip without region"); |
| auto&& region = reinterpret_cast<const ClipRegion*>(clip)->region; |
| |
| std::vector<Vertex> regionVertices; |
| SkRegion::Cliperator it(region, clip->rect.toSkIRect()); |
| while (!it.done()) { |
| const SkIRect& r = it.rect(); |
| regionVertices.push_back(Vertex{(float)r.fLeft, (float)r.fTop}); |
| regionVertices.push_back(Vertex{(float)r.fRight, (float)r.fTop}); |
| regionVertices.push_back(Vertex{(float)r.fLeft, (float)r.fBottom}); |
| regionVertices.push_back(Vertex{(float)r.fRight, (float)r.fBottom}); |
| it.next(); |
| } |
| setupStencilQuads(regionVertices, 0); |
| } |
| |
| void BakedOpRenderer::prepareRender(const Rect* dirtyBounds, const ClipBase* clip) { |
| // Prepare scissor (done before stencil, to simplify filling stencil) |
| mRenderState.scissor().setEnabled(clip != nullptr); |
| if (clip) { |
| mRenderState.scissor().set(mRenderTarget.viewportHeight, clip->rect); |
| } |
| |
| // If stencil may be used for clipping, enable it, fill it, or disable it as appropriate |
| if (CC_LIKELY(!Properties::debugOverdraw)) { |
| // only modify stencil mode and content when it's not used for overdraw visualization |
| if (CC_UNLIKELY(clip && clip->mode != ClipMode::Rectangle)) { |
| // NOTE: this pointer check is only safe for non-rect clips, |
| // since rect clips may be created on the stack |
| if (mRenderTarget.lastStencilClip != clip) { |
| // Stencil needed, but current stencil isn't up to date |
| mRenderTarget.lastStencilClip = clip; |
| |
| if (mRenderTarget.frameBufferId != 0 && !mRenderTarget.stencil) { |
| OffscreenBuffer* layer = mRenderTarget.offscreenBuffer; |
| mRenderTarget.stencil = mCaches.renderBufferCache.get( |
| Stencil::getLayerStencilFormat(), |
| layer->texture.width(), layer->texture.height()); |
| // stencil is bound + allocated - associate it with current FBO |
| glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, |
| GL_RENDERBUFFER, mRenderTarget.stencil->getName()); |
| } |
| |
| if (clip->mode == ClipMode::RectangleList) { |
| setupStencilRectList(clip); |
| } else { |
| setupStencilRegion(clip); |
| } |
| } else { |
| // stencil is up to date - just need to ensure it's enabled (since an unclipped |
| // or scissor-only clipped op may have been drawn, disabling the stencil) |
| int incrementThreshold = 0; |
| if (CC_LIKELY(clip->mode == ClipMode::RectangleList)) { |
| auto&& rectList = reinterpret_cast<const ClipRectList*>(clip)->rectList; |
| incrementThreshold = rectList.getTransformedRectanglesCount(); |
| } |
| mRenderState.stencil().enableTest(incrementThreshold); |
| } |
| } else { |
| // either scissor or no clip, so disable stencil test |
| mRenderState.stencil().disable(); |
| } |
| } |
| |
| // dirty offscreenbuffer |
| if (dirtyBounds && mRenderTarget.offscreenBuffer) { |
| // register layer damage to draw-back region |
| android::Rect dirty(dirtyBounds->left, dirtyBounds->top, |
| dirtyBounds->right, dirtyBounds->bottom); |
| mRenderTarget.offscreenBuffer->region.orSelf(dirty); |
| } |
| } |
| |
| void BakedOpRenderer::renderGlop(const Rect* dirtyBounds, const ClipBase* clip, |
| const Glop& glop) { |
| prepareRender(dirtyBounds, clip); |
| mRenderState.render(glop, mRenderTarget.orthoMatrix); |
| if (!mRenderTarget.frameBufferId) mHasDrawn = true; |
| } |
| |
| void BakedOpRenderer::renderFunctor(const FunctorOp& op, const BakedOpState& state) { |
| prepareRender(&state.computedState.clippedBounds, state.computedState.getClipIfNeeded()); |
| |
| DrawGlInfo info; |
| auto&& clip = state.computedState.clipRect(); |
| info.clipLeft = clip.left; |
| info.clipTop = clip.top; |
| info.clipRight = clip.right; |
| info.clipBottom = clip.bottom; |
| info.isLayer = offscreenRenderTarget(); |
| info.width = mRenderTarget.viewportWidth; |
| info.height = mRenderTarget.viewportHeight; |
| state.computedState.transform.copyTo(&info.transform[0]); |
| |
| mRenderState.invokeFunctor(op.functor, DrawGlInfo::kModeDraw, &info); |
| } |
| |
| #define VALIDATE_RECT_ARG(rect, arg) \ |
| ((isnanf(rect.arg) || rect.arg < -10000 || rect.arg > 10000) ? (\ |
| ALOGW("suspicious " #rect "." #arg "! %f", rect.arg),\ |
| false) : true) |
| |
| #define VALIDATE_RECT(rect) \ |
| VALIDATE_RECT_ARG(rect, bottom) & \ |
| VALIDATE_RECT_ARG(rect, left) & \ |
| VALIDATE_RECT_ARG(rect, top) & \ |
| VALIDATE_RECT_ARG(rect, right) |
| |
| void BakedOpRenderer::dirtyRenderTarget(const Rect& uiDirty) { |
| if (mRenderTarget.offscreenBuffer) { |
| bool valid = VALIDATE_RECT(uiDirty); |
| android::Rect dirty; |
| if (valid) { |
| dirty = android::Rect(uiDirty.left, uiDirty.top, uiDirty.right, uiDirty.bottom); |
| } else { |
| dirty = android::Rect(0, 0, |
| mRenderTarget.offscreenBuffer->viewportWidth, |
| mRenderTarget.offscreenBuffer->viewportHeight); |
| } |
| mRenderTarget.offscreenBuffer->region.orSelf(dirty); |
| } |
| } |
| |
| } // namespace uirenderer |
| } // namespace android |