BakedOpRenderer.cpp revision 15c3f19a445b8df575911a16e8a6dba755a084b5
1/* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#include "BakedOpRenderer.h" 18 19#include "Caches.h" 20#include "Glop.h" 21#include "GlopBuilder.h" 22#include "renderstate/OffscreenBufferPool.h" 23#include "renderstate/RenderState.h" 24#include "utils/GLUtils.h" 25#include "VertexBuffer.h" 26 27#include <algorithm> 28 29namespace android { 30namespace uirenderer { 31 32OffscreenBuffer* BakedOpRenderer::startTemporaryLayer(uint32_t width, uint32_t height) { 33 LOG_ALWAYS_FATAL_IF(mRenderTarget.offscreenBuffer, "already has layer..."); 34 35 OffscreenBuffer* buffer = mRenderState.layerPool().get(mRenderState, width, height); 36 startRepaintLayer(buffer, Rect(width, height)); 37 return buffer; 38} 39 40void BakedOpRenderer::startRepaintLayer(OffscreenBuffer* offscreenBuffer, const Rect& repaintRect) { 41 LOG_ALWAYS_FATAL_IF(mRenderTarget.offscreenBuffer, "already has layer..."); 42 43 mRenderTarget.offscreenBuffer = offscreenBuffer; 44 45 // create and bind framebuffer 46 mRenderTarget.frameBufferId = mRenderState.genFramebuffer(); 47 mRenderState.bindFramebuffer(mRenderTarget.frameBufferId); 48 49 // attach the texture to the FBO 50 glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 51 offscreenBuffer->texture.id, 0); 52 LOG_ALWAYS_FATAL_IF(GLUtils::dumpGLErrors(), "startLayer FAILED"); 53 LOG_ALWAYS_FATAL_IF(glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE, 54 "framebuffer incomplete!"); 55 56 // Change the viewport & ortho projection 57 setViewport(offscreenBuffer->viewportWidth, offscreenBuffer->viewportHeight); 58 59 clearColorBuffer(repaintRect); 60} 61 62void BakedOpRenderer::endLayer() { 63 mRenderTarget.offscreenBuffer->updateMeshFromRegion(); 64 mRenderTarget.offscreenBuffer = nullptr; 65 66 // Detach the texture from the FBO 67 glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 0, 0); 68 LOG_ALWAYS_FATAL_IF(GLUtils::dumpGLErrors(), "endLayer FAILED"); 69 mRenderState.deleteFramebuffer(mRenderTarget.frameBufferId); 70 mRenderTarget.frameBufferId = -1; 71} 72 73void BakedOpRenderer::startFrame(uint32_t width, uint32_t height, const Rect& repaintRect) { 74 mRenderState.bindFramebuffer(0); 75 setViewport(width, height); 76 mCaches.clearGarbage(); 77 78 if (!mOpaque) { 79 clearColorBuffer(repaintRect); 80 } 81} 82 83void BakedOpRenderer::endFrame() { 84 mCaches.pathCache.trim(); 85 mCaches.tessellationCache.trim(); 86 87#if DEBUG_OPENGL 88 GLUtils::dumpGLErrors(); 89#endif 90 91#if DEBUG_MEMORY_USAGE 92 mCaches.dumpMemoryUsage(); 93#else 94 if (Properties::debugLevel & kDebugMemory) { 95 mCaches.dumpMemoryUsage(); 96 } 97#endif 98} 99 100void BakedOpRenderer::setViewport(uint32_t width, uint32_t height) { 101 mRenderTarget.viewportWidth = width; 102 mRenderTarget.viewportHeight = height; 103 mRenderTarget.orthoMatrix.loadOrtho(width, height); 104 105 mRenderState.setViewport(width, height); 106 mRenderState.blend().syncEnabled(); 107} 108 109void BakedOpRenderer::clearColorBuffer(const Rect& rect) { 110 if (Rect(mRenderTarget.viewportWidth, mRenderTarget.viewportHeight).contains(rect)) { 111 // Full viewport is being cleared - disable scissor 112 mRenderState.scissor().setEnabled(false); 113 } else { 114 // Requested rect is subset of viewport - scissor to it to avoid over-clearing 115 mRenderState.scissor().setEnabled(true); 116 mRenderState.scissor().set(rect.left, mRenderTarget.viewportHeight - rect.bottom, 117 rect.getWidth(), rect.getHeight()); 118 } 119 glClear(GL_COLOR_BUFFER_BIT); 120 if (!mRenderTarget.frameBufferId) mHasDrawn = true; 121} 122 123Texture* BakedOpRenderer::getTexture(const SkBitmap* bitmap) { 124 Texture* texture = mRenderState.assetAtlas().getEntryTexture(bitmap->pixelRef()); 125 if (!texture) { 126 return mCaches.textureCache.get(bitmap); 127 } 128 return texture; 129} 130 131void BakedOpRenderer::renderGlop(const Rect* dirtyBounds, const Rect* clip, const Glop& glop) { 132 mRenderState.scissor().setEnabled(clip != nullptr); 133 if (clip) { 134 mRenderState.scissor().set(clip->left, mRenderTarget.viewportHeight - clip->bottom, 135 clip->getWidth(), clip->getHeight()); 136 } 137 if (dirtyBounds && mRenderTarget.offscreenBuffer) { 138 // register layer damage to draw-back region 139 android::Rect dirty(dirtyBounds->left, dirtyBounds->top, 140 dirtyBounds->right, dirtyBounds->bottom); 141 mRenderTarget.offscreenBuffer->region.orSelf(dirty); 142 } 143 mRenderState.render(glop, mRenderTarget.orthoMatrix); 144 if (!mRenderTarget.frameBufferId) mHasDrawn = true; 145} 146 147void BakedOpRenderer::dirtyRenderTarget(const Rect& uiDirty) { 148 if (mRenderTarget.offscreenBuffer) { 149 android::Rect dirty(uiDirty.left, uiDirty.top, uiDirty.right, uiDirty.bottom); 150 mRenderTarget.offscreenBuffer->region.orSelf(dirty); 151 } 152} 153 154} // namespace uirenderer 155} // namespace android 156