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 "Caches.h" 22 #include "DeferredDisplayList.h" 23 #include "RenderState.h" 24 #include "Layer.h" 25 #include "LayerRenderer.h" 26 #include "OpenGLRenderer.h" 27 #include "RenderNode.h" 28 29 namespace android { 30 namespace uirenderer { 31 32 Layer::Layer(Type layerType, RenderState& renderState, const uint32_t layerWidth, const uint32_t layerHeight) 33 : state(kState_Uncached) 34 , caches(Caches::getInstance()) 35 , renderState(renderState) 36 , texture(caches) 37 , type(layerType) { 38 mesh = NULL; 39 meshElementCount = 0; 40 cacheable = true; 41 dirty = false; 42 renderTarget = GL_TEXTURE_2D; 43 texture.width = layerWidth; 44 texture.height = layerHeight; 45 colorFilter = NULL; 46 deferredUpdateScheduled = false; 47 renderer = NULL; 48 renderNode = NULL; 49 fbo = 0; 50 stencil = NULL; 51 debugDrawUpdate = false; 52 hasDrawnSinceUpdate = false; 53 forceFilter = false; 54 deferredList = NULL; 55 convexMask = NULL; 56 caches.resourceCache.incrementRefcount(this); 57 rendererLightPosDirty = true; 58 wasBuildLayered = false; 59 if (!isTextureLayer()) { 60 // track only non-texture layer lifecycles in renderstate, 61 // because texture layers are destroyed via finalizer 62 renderState.registerLayer(this); 63 } 64 } 65 66 Layer::~Layer() { 67 if (!isTextureLayer()) { 68 renderState.unregisterLayer(this); 69 } 70 SkSafeUnref(colorFilter); 71 removeFbo(); 72 deleteTexture(); 73 74 delete[] mesh; 75 delete deferredList; 76 delete renderer; 77 } 78 79 uint32_t Layer::computeIdealWidth(uint32_t layerWidth) { 80 return uint32_t(ceilf(layerWidth / float(LAYER_SIZE)) * LAYER_SIZE); 81 } 82 83 uint32_t Layer::computeIdealHeight(uint32_t layerHeight) { 84 return uint32_t(ceilf(layerHeight / float(LAYER_SIZE)) * LAYER_SIZE); 85 } 86 87 void Layer::requireRenderer() { 88 if (!renderer) { 89 renderer = new LayerRenderer(renderState, this); 90 renderer->initProperties(); 91 } 92 } 93 94 void Layer::updateLightPosFromRenderer(const OpenGLRenderer& rootRenderer) { 95 if (renderer && rendererLightPosDirty) { 96 // re-init renderer's light position, based upon last cached location in window 97 Vector3 lightPos = rootRenderer.getLightCenter(); 98 cachedInvTransformInWindow.mapPoint3d(lightPos); 99 renderer->initLight(lightPos, rootRenderer.getLightRadius(), 100 rootRenderer.getAmbientShadowAlpha(), rootRenderer.getSpotShadowAlpha()); 101 rendererLightPosDirty = false; 102 } 103 } 104 105 bool Layer::resize(const uint32_t width, const uint32_t height) { 106 uint32_t desiredWidth = computeIdealWidth(width); 107 uint32_t desiredHeight = computeIdealWidth(height); 108 109 if (desiredWidth <= getWidth() && desiredHeight <= getHeight()) { 110 return true; 111 } 112 113 ATRACE_NAME("resizeLayer"); 114 115 const uint32_t maxTextureSize = caches.maxTextureSize; 116 if (desiredWidth > maxTextureSize || desiredHeight > maxTextureSize) { 117 ALOGW("Layer exceeds max. dimensions supported by the GPU (%dx%d, max=%dx%d)", 118 desiredWidth, desiredHeight, maxTextureSize, maxTextureSize); 119 return false; 120 } 121 122 uint32_t oldWidth = getWidth(); 123 uint32_t oldHeight = getHeight(); 124 125 setSize(desiredWidth, desiredHeight); 126 127 if (fbo) { 128 caches.activeTexture(0); 129 bindTexture(); 130 allocateTexture(); 131 132 if (glGetError() != GL_NO_ERROR) { 133 setSize(oldWidth, oldHeight); 134 return false; 135 } 136 } 137 138 if (stencil) { 139 stencil->bind(); 140 stencil->resize(desiredWidth, desiredHeight); 141 142 if (glGetError() != GL_NO_ERROR) { 143 setSize(oldWidth, oldHeight); 144 return false; 145 } 146 } 147 148 return true; 149 } 150 151 void Layer::removeFbo(bool flush) { 152 if (stencil) { 153 GLuint previousFbo = renderState.getFramebuffer(); 154 renderState.bindFramebuffer(fbo); 155 glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0); 156 renderState.bindFramebuffer(previousFbo); 157 158 caches.renderBufferCache.put(stencil); 159 stencil = NULL; 160 } 161 162 if (fbo) { 163 if (flush) LayerRenderer::flushLayer(renderState, this); 164 // If put fails the cache will delete the FBO 165 caches.fboCache.put(fbo); 166 fbo = 0; 167 } 168 } 169 170 void Layer::updateDeferred(RenderNode* renderNode, int left, int top, int right, int bottom) { 171 requireRenderer(); 172 this->renderNode = renderNode; 173 const Rect r(left, top, right, bottom); 174 dirtyRect.unionWith(r); 175 deferredUpdateScheduled = true; 176 } 177 178 void Layer::setPaint(const SkPaint* paint) { 179 OpenGLRenderer::getAlphaAndModeDirect(paint, &alpha, &mode); 180 setColorFilter((paint) ? paint->getColorFilter() : NULL); 181 } 182 183 void Layer::setColorFilter(SkColorFilter* filter) { 184 SkRefCnt_SafeAssign(colorFilter, filter); 185 } 186 187 void Layer::bindTexture() const { 188 if (texture.id) { 189 caches.bindTexture(renderTarget, texture.id); 190 } 191 } 192 193 void Layer::bindStencilRenderBuffer() const { 194 if (stencil) { 195 stencil->bind(); 196 } 197 } 198 199 void Layer::generateTexture() { 200 if (!texture.id) { 201 glGenTextures(1, &texture.id); 202 } 203 } 204 205 void Layer::deleteTexture() { 206 if (texture.id) { 207 texture.deleteTexture(); 208 texture.id = 0; 209 } 210 } 211 212 void Layer::clearTexture() { 213 caches.unbindTexture(texture.id); 214 texture.id = 0; 215 } 216 217 void Layer::allocateTexture() { 218 #if DEBUG_LAYERS 219 ALOGD(" Allocate layer: %dx%d", getWidth(), getHeight()); 220 #endif 221 if (texture.id) { 222 glPixelStorei(GL_UNPACK_ALIGNMENT, 4); 223 glTexImage2D(renderTarget, 0, GL_RGBA, getWidth(), getHeight(), 0, 224 GL_RGBA, GL_UNSIGNED_BYTE, NULL); 225 } 226 } 227 228 void Layer::defer(const OpenGLRenderer& rootRenderer) { 229 updateLightPosFromRenderer(rootRenderer); 230 const float width = layer.getWidth(); 231 const float height = layer.getHeight(); 232 233 if (dirtyRect.isEmpty() || (dirtyRect.left <= 0 && dirtyRect.top <= 0 && 234 dirtyRect.right >= width && dirtyRect.bottom >= height)) { 235 dirtyRect.set(0, 0, width, height); 236 } 237 238 delete deferredList; 239 deferredList = new DeferredDisplayList(dirtyRect); 240 241 DeferStateStruct deferredState(*deferredList, *renderer, 242 RenderNode::kReplayFlag_ClipChildren); 243 244 renderer->setViewport(width, height); 245 renderer->setupFrameState(dirtyRect.left, dirtyRect.top, 246 dirtyRect.right, dirtyRect.bottom, !isBlend()); 247 248 renderNode->computeOrdering(); 249 renderNode->defer(deferredState, 0); 250 251 deferredUpdateScheduled = false; 252 } 253 254 void Layer::cancelDefer() { 255 renderNode = NULL; 256 deferredUpdateScheduled = false; 257 if (deferredList) { 258 delete deferredList; 259 deferredList = NULL; 260 } 261 } 262 263 void Layer::flush() { 264 // renderer is checked as layer may be destroyed/put in layer cache with flush scheduled 265 if (deferredList && renderer) { 266 renderer->setViewport(layer.getWidth(), layer.getHeight()); 267 renderer->prepareDirty(dirtyRect.left, dirtyRect.top, dirtyRect.right, dirtyRect.bottom, 268 !isBlend()); 269 270 deferredList->flush(*renderer, dirtyRect); 271 272 renderer->finish(); 273 274 dirtyRect.setEmpty(); 275 renderNode = NULL; 276 } 277 } 278 279 void Layer::render(const OpenGLRenderer& rootRenderer) { 280 updateLightPosFromRenderer(rootRenderer); 281 renderer->setViewport(layer.getWidth(), layer.getHeight()); 282 renderer->prepareDirty(dirtyRect.left, dirtyRect.top, dirtyRect.right, dirtyRect.bottom, 283 !isBlend()); 284 285 renderer->drawRenderNode(renderNode.get(), dirtyRect, RenderNode::kReplayFlag_ClipChildren); 286 287 renderer->finish(); 288 289 dirtyRect.setEmpty(); 290 291 deferredUpdateScheduled = false; 292 renderNode = NULL; 293 } 294 295 }; // namespace uirenderer 296 }; // namespace android 297
