1 /* 2 * Copyright (C) 2012 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 #define LOG_TAG "OpenGLRenderer" 18 19 #include <utils/Log.h> 20 21 #include "DisplayList.h" 22 #include "DeferredDisplayList.h" 23 #include "Layer.h" 24 #include "LayerRenderer.h" 25 #include "OpenGLRenderer.h" 26 #include "Caches.h" 27 28 namespace android { 29 namespace uirenderer { 30 31 Layer::Layer(const uint32_t layerWidth, const uint32_t layerHeight) { 32 mesh = NULL; 33 meshIndices = NULL; 34 meshElementCount = 0; 35 cacheable = true; 36 dirty = false; 37 textureLayer = false; 38 renderTarget = GL_TEXTURE_2D; 39 texture.width = layerWidth; 40 texture.height = layerHeight; 41 colorFilter = NULL; 42 deferredUpdateScheduled = false; 43 renderer = NULL; 44 displayList = NULL; 45 fbo = 0; 46 stencil = NULL; 47 debugDrawUpdate = false; 48 hasDrawnSinceUpdate = false; 49 deferredList = NULL; 50 Caches::getInstance().resourceCache.incrementRefcount(this); 51 } 52 53 Layer::~Layer() { 54 if (colorFilter) Caches::getInstance().resourceCache.decrementRefcount(colorFilter); 55 removeFbo(); 56 deleteTexture(); 57 58 delete[] mesh; 59 delete[] meshIndices; 60 delete deferredList; 61 } 62 63 uint32_t Layer::computeIdealWidth(uint32_t layerWidth) { 64 return uint32_t(ceilf(layerWidth / float(LAYER_SIZE)) * LAYER_SIZE); 65 } 66 67 uint32_t Layer::computeIdealHeight(uint32_t layerHeight) { 68 return uint32_t(ceilf(layerHeight / float(LAYER_SIZE)) * LAYER_SIZE); 69 } 70 71 bool Layer::resize(const uint32_t width, const uint32_t height) { 72 uint32_t desiredWidth = computeIdealWidth(width); 73 uint32_t desiredHeight = computeIdealWidth(height); 74 75 if (desiredWidth <= getWidth() && desiredHeight <= getHeight()) { 76 return true; 77 } 78 79 const uint32_t maxTextureSize = Caches::getInstance().maxTextureSize; 80 if (desiredWidth > maxTextureSize || desiredHeight > maxTextureSize) { 81 ALOGW("Layer exceeds max. dimensions supported by the GPU (%dx%d, max=%dx%d)", 82 desiredWidth, desiredHeight, maxTextureSize, maxTextureSize); 83 return false; 84 } 85 86 uint32_t oldWidth = getWidth(); 87 uint32_t oldHeight = getHeight(); 88 89 setSize(desiredWidth, desiredHeight); 90 91 if (fbo) { 92 Caches::getInstance().activeTexture(0); 93 bindTexture(); 94 allocateTexture(); 95 96 if (glGetError() != GL_NO_ERROR) { 97 setSize(oldWidth, oldHeight); 98 return false; 99 } 100 } 101 102 if (stencil) { 103 stencil->bind(); 104 stencil->resize(desiredWidth, desiredHeight); 105 106 if (glGetError() != GL_NO_ERROR) { 107 setSize(oldWidth, oldHeight); 108 return false; 109 } 110 } 111 112 return true; 113 } 114 115 void Layer::removeFbo(bool flush) { 116 if (stencil) { 117 GLuint previousFbo; 118 glGetIntegerv(GL_FRAMEBUFFER_BINDING, (GLint*) &previousFbo); 119 if (fbo != previousFbo) glBindFramebuffer(GL_FRAMEBUFFER, fbo); 120 glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0); 121 if (fbo != previousFbo) glBindFramebuffer(GL_FRAMEBUFFER, previousFbo); 122 123 Caches::getInstance().renderBufferCache.put(stencil); 124 stencil = NULL; 125 } 126 127 if (fbo) { 128 if (flush) LayerRenderer::flushLayer(this); 129 // If put fails the cache will delete the FBO 130 Caches::getInstance().fboCache.put(fbo); 131 fbo = 0; 132 } 133 } 134 135 void Layer::setPaint(SkPaint* paint) { 136 OpenGLRenderer::getAlphaAndModeDirect(paint, &alpha, &mode); 137 } 138 139 void Layer::setColorFilter(SkiaColorFilter* filter) { 140 if (colorFilter) { 141 Caches::getInstance().resourceCache.decrementRefcount(colorFilter); 142 } 143 colorFilter = filter; 144 if (colorFilter) { 145 Caches::getInstance().resourceCache.incrementRefcount(colorFilter); 146 } 147 } 148 149 void Layer::defer() { 150 if (!deferredList) { 151 deferredList = new DeferredDisplayList; 152 } 153 DeferStateStruct deferredState(*deferredList, *renderer, 154 DisplayList::kReplayFlag_ClipChildren); 155 156 const float width = layer.getWidth(); 157 const float height = layer.getHeight(); 158 159 if (dirtyRect.isEmpty() || (dirtyRect.left <= 0 && dirtyRect.top <= 0 && 160 dirtyRect.right >= width && dirtyRect.bottom >= height)) { 161 dirtyRect.set(0, 0, width, height); 162 } 163 164 renderer->initViewport(width, height); 165 renderer->setupFrameState(dirtyRect.left, dirtyRect.top, 166 dirtyRect.right, dirtyRect.bottom, !isBlend()); 167 168 displayList->defer(deferredState, 0); 169 170 deferredUpdateScheduled = false; 171 } 172 173 void Layer::flush() { 174 if (deferredList) { 175 renderer->setViewport(layer.getWidth(), layer.getHeight()); 176 renderer->prepareDirty(dirtyRect.left, dirtyRect.top, dirtyRect.right, dirtyRect.bottom, 177 !isBlend()); 178 179 deferredList->flush(*renderer, dirtyRect); 180 181 renderer->finish(); 182 renderer = NULL; 183 184 dirtyRect.setEmpty(); 185 displayList = NULL; 186 } 187 } 188 189 void Layer::render() { 190 renderer->setViewport(layer.getWidth(), layer.getHeight()); 191 renderer->prepareDirty(dirtyRect.left, dirtyRect.top, dirtyRect.right, dirtyRect.bottom, 192 !isBlend()); 193 194 renderer->drawDisplayList(displayList, dirtyRect, DisplayList::kReplayFlag_ClipChildren); 195 196 renderer->finish(); 197 renderer = NULL; 198 199 dirtyRect.setEmpty(); 200 201 deferredUpdateScheduled = false; 202 displayList = NULL; 203 } 204 205 }; // namespace uirenderer 206 }; // namespace android 207
