Caches.h revision 31e08e953fe7bdb1b1cbc247156cb6a19917a2f1
1/* 2 * Copyright (C) 2010 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#ifndef ANDROID_HWUI_CACHES_H 18#define ANDROID_HWUI_CACHES_H 19 20#ifndef LOG_TAG 21 #define LOG_TAG "OpenGLRenderer" 22#endif 23 24#include <GLES3/gl3.h> 25 26#include <utils/KeyedVector.h> 27#include <utils/Singleton.h> 28#include <utils/Vector.h> 29 30#include <cutils/compiler.h> 31 32#include "thread/TaskProcessor.h" 33#include "thread/TaskManager.h" 34 35#include "AssetAtlas.h" 36#include "FontRenderer.h" 37#include "GammaFontRenderer.h" 38#include "TextureCache.h" 39#include "LayerCache.h" 40#include "RenderBufferCache.h" 41#include "GradientCache.h" 42#include "PatchCache.h" 43#include "ProgramCache.h" 44#include "PathCache.h" 45#include "TextDropShadowCache.h" 46#include "FboCache.h" 47#include "ResourceCache.h" 48#include "Stencil.h" 49#include "Dither.h" 50 51namespace android { 52namespace uirenderer { 53 54/////////////////////////////////////////////////////////////////////////////// 55// Globals 56/////////////////////////////////////////////////////////////////////////////// 57 58// GL ES 2.0 defines that at least 16 texture units must be supported 59#define REQUIRED_TEXTURE_UNITS_COUNT 3 60 61// Maximum number of quads that pre-allocated meshes can draw 62static const uint32_t gMaxNumberOfQuads = 2048; 63 64// Generates simple and textured vertices 65#define FV(x, y, u, v) { { x, y }, { u, v } } 66 67// This array is never used directly but used as a memcpy source in the 68// OpenGLRenderer constructor 69static const TextureVertex gMeshVertices[] = { 70 FV(0.0f, 0.0f, 0.0f, 0.0f), 71 FV(1.0f, 0.0f, 1.0f, 0.0f), 72 FV(0.0f, 1.0f, 0.0f, 1.0f), 73 FV(1.0f, 1.0f, 1.0f, 1.0f) 74}; 75static const GLsizei gMeshStride = sizeof(TextureVertex); 76static const GLsizei gVertexStride = sizeof(Vertex); 77static const GLsizei gAlphaVertexStride = sizeof(AlphaVertex); 78static const GLsizei gMeshTextureOffset = 2 * sizeof(float); 79static const GLsizei gVertexAlphaOffset = 2 * sizeof(float); 80static const GLsizei gVertexAAWidthOffset = 2 * sizeof(float); 81static const GLsizei gVertexAALengthOffset = 3 * sizeof(float); 82static const GLsizei gMeshCount = 4; 83 84// Must define as many texture units as specified by REQUIRED_TEXTURE_UNITS_COUNT 85static const GLenum gTextureUnits[] = { 86 GL_TEXTURE0, 87 GL_TEXTURE1, 88 GL_TEXTURE2 89}; 90 91/////////////////////////////////////////////////////////////////////////////// 92// Debug 93/////////////////////////////////////////////////////////////////////////////// 94 95struct CacheLogger { 96 CacheLogger() { 97 INIT_LOGD("Creating OpenGL renderer caches"); 98 } 99}; // struct CacheLogger 100 101/////////////////////////////////////////////////////////////////////////////// 102// Caches 103/////////////////////////////////////////////////////////////////////////////// 104 105class DisplayList; 106 107class ANDROID_API Caches: public Singleton<Caches> { 108 Caches(); 109 110 friend class Singleton<Caches>; 111 112 CacheLogger mLogger; 113 114public: 115 enum FlushMode { 116 kFlushMode_Layers = 0, 117 kFlushMode_Moderate, 118 kFlushMode_Full 119 }; 120 121 /** 122 * Initialize caches. 123 */ 124 bool init(); 125 126 /** 127 * Initialize global system properties. 128 */ 129 bool initProperties(); 130 131 /** 132 * Flush the cache. 133 * 134 * @param mode Indicates how much of the cache should be flushed 135 */ 136 void flush(FlushMode mode); 137 138 /** 139 * Destroys all resources associated with this cache. This should 140 * be called after a flush(kFlushMode_Full). 141 */ 142 void terminate(); 143 144 /** 145 * Indicates whether the renderer is in debug mode. 146 * This debug mode provides limited information to app developers. 147 */ 148 DebugLevel getDebugLevel() const { 149 return mDebugLevel; 150 } 151 152 /** 153 * Call this on each frame to ensure that garbage is deleted from 154 * GPU memory. 155 */ 156 void clearGarbage(); 157 158 /** 159 * Can be used to delete a layer from a non EGL thread. 160 */ 161 void deleteLayerDeferred(Layer* layer); 162 163 /* 164 * Can be used to delete a display list from a non EGL thread. 165 */ 166 void deleteDisplayListDeferred(DisplayList* layer); 167 168 /** 169 * Binds the VBO used to render simple textured quads. 170 */ 171 bool bindMeshBuffer(); 172 173 /** 174 * Binds the specified VBO if needed. 175 */ 176 bool bindMeshBuffer(const GLuint buffer); 177 178 /** 179 * Unbinds the VBO used to render simple textured quads. 180 */ 181 bool unbindMeshBuffer(); 182 183 /** 184 * Binds a global indices buffer that can draw up to 185 * gMaxNumberOfQuads quads. 186 */ 187 bool bindIndicesBuffer(); 188 bool bindIndicesBuffer(const GLuint buffer); 189 bool unbindIndicesBuffer(); 190 191 /** 192 * Binds the specified buffer as the current GL unpack pixel buffer. 193 */ 194 bool bindPixelBuffer(const GLuint buffer); 195 196 /** 197 * Resets the current unpack pixel buffer to 0 (default value.) 198 */ 199 bool unbindPixelBuffer(); 200 201 /** 202 * Binds an attrib to the specified float vertex pointer. 203 * Assumes a stride of gMeshStride and a size of 2. 204 */ 205 void bindPositionVertexPointer(bool force, GLvoid* vertices, GLsizei stride = gMeshStride); 206 207 /** 208 * Binds an attrib to the specified float vertex pointer. 209 * Assumes a stride of gMeshStride and a size of 2. 210 */ 211 void bindTexCoordsVertexPointer(bool force, GLvoid* vertices, GLsizei stride = gMeshStride); 212 213 /** 214 * Resets the vertex pointers. 215 */ 216 void resetVertexPointers(); 217 void resetTexCoordsVertexPointer(); 218 219 void enableTexCoordsVertexArray(); 220 void disableTexCoordsVertexArray(); 221 222 /** 223 * Activate the specified texture unit. The texture unit must 224 * be specified using an integer number (0 for GL_TEXTURE0 etc.) 225 */ 226 void activeTexture(GLuint textureUnit); 227 228 /** 229 * Binds the specified texture as a GL_TEXTURE_2D texture. 230 * All texture bindings must be performed with this method or 231 * bindTexture(GLenum, GLuint). 232 */ 233 void bindTexture(GLuint texture); 234 235 /** 236 * Binds the specified texture with the specified render target. 237 * All texture bindings must be performed with this method or 238 * bindTexture(GLuint). 239 */ 240 void bindTexture(GLenum target, GLuint texture); 241 242 /** 243 * Deletes the specified texture and clears it from the cache 244 * of bound textures. 245 * All textures must be deleted using this method. 246 */ 247 void deleteTexture(GLuint texture); 248 249 /** 250 * Signals that the cache of bound textures should be cleared. 251 * Other users of the context may have altered which textures are bound. 252 */ 253 void resetBoundTextures(); 254 255 /** 256 * Sets the scissor for the current surface. 257 */ 258 bool setScissor(GLint x, GLint y, GLint width, GLint height); 259 260 /** 261 * Resets the scissor state. 262 */ 263 void resetScissor(); 264 265 bool enableScissor(); 266 bool disableScissor(); 267 void setScissorEnabled(bool enabled); 268 269 void startTiling(GLuint x, GLuint y, GLuint width, GLuint height, bool discard); 270 void endTiling(); 271 272 /** 273 * Returns the mesh used to draw regions. Calling this method will 274 * bind a VBO of type GL_ELEMENT_ARRAY_BUFFER that contains the 275 * indices for the region mesh. 276 */ 277 TextureVertex* getRegionMesh(); 278 279 /** 280 * Displays the memory usage of each cache and the total sum. 281 */ 282 void dumpMemoryUsage(); 283 void dumpMemoryUsage(String8& log); 284 285 bool hasRegisteredFunctors(); 286 void registerFunctors(uint32_t functorCount); 287 void unregisterFunctors(uint32_t functorCount); 288 289 bool blend; 290 GLenum lastSrcMode; 291 GLenum lastDstMode; 292 Program* currentProgram; 293 bool scissorEnabled; 294 295 bool drawDeferDisabled; 296 bool drawReorderDisabled; 297 298 // VBO to draw with 299 GLuint meshBuffer; 300 301 // Misc 302 GLint maxTextureSize; 303 304 // Debugging 305 bool debugLayersUpdates; 306 bool debugOverdraw; 307 308 enum StencilClipDebug { 309 kStencilHide, 310 kStencilShowHighlight, 311 kStencilShowRegion 312 }; 313 StencilClipDebug debugStencilClip; 314 315 TextureCache textureCache; 316 LayerCache layerCache; 317 RenderBufferCache renderBufferCache; 318 GradientCache gradientCache; 319 ProgramCache programCache; 320 PathCache pathCache; 321 PatchCache patchCache; 322 TextDropShadowCache dropShadowCache; 323 FboCache fboCache; 324 ResourceCache resourceCache; 325 326 GammaFontRenderer* fontRenderer; 327 328 TaskManager tasks; 329 330 Dither dither; 331 Stencil stencil; 332 333 AssetAtlas assetAtlas; 334 335 bool gpuPixelBuffersEnabled; 336 337 // Debug methods 338 PFNGLINSERTEVENTMARKEREXTPROC eventMark; 339 PFNGLPUSHGROUPMARKEREXTPROC startMark; 340 PFNGLPOPGROUPMARKEREXTPROC endMark; 341 342 PFNGLLABELOBJECTEXTPROC setLabel; 343 PFNGLGETOBJECTLABELEXTPROC getLabel; 344 345private: 346 void initFont(); 347 void initExtensions(); 348 void initConstraints(); 349 void initStaticProperties(); 350 351 static void eventMarkNull(GLsizei length, const GLchar* marker) { } 352 static void startMarkNull(GLsizei length, const GLchar* marker) { } 353 static void endMarkNull() { } 354 355 static void setLabelNull(GLenum type, uint object, GLsizei length, 356 const char* label) { } 357 static void getLabelNull(GLenum type, uint object, GLsizei bufferSize, 358 GLsizei* length, char* label) { 359 if (length) *length = 0; 360 if (label) *label = '\0'; 361 } 362 363 GLuint mCurrentBuffer; 364 GLuint mCurrentIndicesBuffer; 365 GLuint mCurrentPixelBuffer; 366 void* mCurrentPositionPointer; 367 GLsizei mCurrentPositionStride; 368 void* mCurrentTexCoordsPointer; 369 GLsizei mCurrentTexCoordsStride; 370 371 bool mTexCoordsArrayEnabled; 372 373 GLuint mTextureUnit; 374 375 GLint mScissorX; 376 GLint mScissorY; 377 GLint mScissorWidth; 378 GLint mScissorHeight; 379 380 Extensions& mExtensions; 381 382 // Used to render layers 383 TextureVertex* mRegionMesh; 384 385 // Global index buffer 386 GLuint mMeshIndices; 387 388 mutable Mutex mGarbageLock; 389 Vector<Layer*> mLayerGarbage; 390 Vector<DisplayList*> mDisplayListGarbage; 391 392 DebugLevel mDebugLevel; 393 bool mInitialized; 394 395 uint32_t mFunctorsCount; 396 397 GLuint mBoundTextures[REQUIRED_TEXTURE_UNITS_COUNT]; 398}; // class Caches 399 400}; // namespace uirenderer 401}; // namespace android 402 403#endif // ANDROID_HWUI_CACHES_H 404