Caches.h revision 2dc236b2bae13b9a0ed9b3f7320502aecd7983b3
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 <vector> 25 26#include <GLES3/gl3.h> 27 28#include <utils/KeyedVector.h> 29#include <utils/Singleton.h> 30#include <utils/Vector.h> 31 32#include <cutils/compiler.h> 33 34#include <SkPath.h> 35 36#include "thread/TaskProcessor.h" 37#include "thread/TaskManager.h" 38 39#include "AssetAtlas.h" 40#include "Extensions.h" 41#include "TextureCache.h" 42#include "LayerCache.h" 43#include "RenderBufferCache.h" 44#include "GradientCache.h" 45#include "PatchCache.h" 46#include "ProgramCache.h" 47#include "PathCache.h" 48#include "TessellationCache.h" 49#include "TextDropShadowCache.h" 50#include "FboCache.h" 51#include "ResourceCache.h" 52#include "Stencil.h" 53#include "Dither.h" 54 55namespace android { 56namespace uirenderer { 57 58class GammaFontRenderer; 59 60/////////////////////////////////////////////////////////////////////////////// 61// Globals 62/////////////////////////////////////////////////////////////////////////////// 63 64// GL ES 2.0 defines that at least 16 texture units must be supported 65#define REQUIRED_TEXTURE_UNITS_COUNT 3 66 67// Maximum number of quads that pre-allocated meshes can draw 68static const uint32_t gMaxNumberOfQuads = 2048; 69 70// Generates simple and textured vertices 71#define FV(x, y, u, v) { x, y, u, v } 72 73// This array is never used directly but used as a memcpy source in the 74// OpenGLRenderer constructor 75static const TextureVertex gMeshVertices[] = { 76 FV(0.0f, 0.0f, 0.0f, 0.0f), 77 FV(1.0f, 0.0f, 1.0f, 0.0f), 78 FV(0.0f, 1.0f, 0.0f, 1.0f), 79 FV(1.0f, 1.0f, 1.0f, 1.0f) 80}; 81static const GLsizei gMeshStride = sizeof(TextureVertex); 82static const GLsizei gVertexStride = sizeof(Vertex); 83static const GLsizei gAlphaVertexStride = sizeof(AlphaVertex); 84static const GLsizei gMeshTextureOffset = 2 * sizeof(float); 85static const GLsizei gVertexAlphaOffset = 2 * sizeof(float); 86static const GLsizei gVertexAAWidthOffset = 2 * sizeof(float); 87static const GLsizei gVertexAALengthOffset = 3 * sizeof(float); 88static const GLsizei gMeshCount = 4; 89 90// Must define as many texture units as specified by REQUIRED_TEXTURE_UNITS_COUNT 91static const GLenum gTextureUnits[] = { 92 GL_TEXTURE0, 93 GL_TEXTURE1, 94 GL_TEXTURE2 95}; 96 97/////////////////////////////////////////////////////////////////////////////// 98// Debug 99/////////////////////////////////////////////////////////////////////////////// 100 101struct CacheLogger { 102 CacheLogger() { 103 INIT_LOGD("Creating OpenGL renderer caches"); 104 } 105}; // struct CacheLogger 106 107/////////////////////////////////////////////////////////////////////////////// 108// Caches 109/////////////////////////////////////////////////////////////////////////////// 110 111class RenderNode; 112class RenderState; 113 114class ANDROID_API Caches: public Singleton<Caches> { 115 Caches(); 116 117 friend class Singleton<Caches>; 118 119 CacheLogger mLogger; 120 121public: 122 enum FlushMode { 123 kFlushMode_Layers = 0, 124 kFlushMode_Moderate, 125 kFlushMode_Full 126 }; 127 128 /** 129 * Initialize caches. 130 */ 131 bool init(); 132 133 /** 134 * Initialize global system properties. 135 */ 136 bool initProperties(); 137 138 void setRenderState(RenderState* renderState) { mRenderState = renderState; } 139 140 /** 141 * Flush the cache. 142 * 143 * @param mode Indicates how much of the cache should be flushed 144 */ 145 void flush(FlushMode mode); 146 147 /** 148 * Destroys all resources associated with this cache. This should 149 * be called after a flush(kFlushMode_Full). 150 */ 151 void terminate(); 152 153 /** 154 * Indicates whether the renderer is in debug mode. 155 * This debug mode provides limited information to app developers. 156 */ 157 DebugLevel getDebugLevel() const { 158 return mDebugLevel; 159 } 160 161 /** 162 * Returns a non-premultiplied ARGB color for the specified 163 * amount of overdraw (1 for 1x, 2 for 2x, etc.) 164 */ 165 uint32_t getOverdrawColor(uint32_t amount) const; 166 167 /** 168 * Call this on each frame to ensure that garbage is deleted from 169 * GPU memory. 170 */ 171 void clearGarbage(); 172 173 /** 174 * Can be used to delete a layer from a non EGL thread. 175 */ 176 void deleteLayerDeferred(Layer* layer); 177 178 /** 179 * Binds the VBO used to render simple textured quads. 180 */ 181 bool bindMeshBuffer(); 182 183 /** 184 * Binds the specified VBO if needed. 185 */ 186 bool bindMeshBuffer(const GLuint buffer); 187 188 /** 189 * Unbinds the VBO used to render simple textured quads. 190 */ 191 bool unbindMeshBuffer(); 192 193 /** 194 * Binds a global indices buffer that can draw up to 195 * gMaxNumberOfQuads quads. 196 */ 197 bool bindQuadIndicesBuffer(); 198 bool bindShadowIndicesBuffer(); 199 bool unbindIndicesBuffer(); 200 201 /** 202 * Binds the specified buffer as the current GL unpack pixel buffer. 203 */ 204 bool bindPixelBuffer(const GLuint buffer); 205 206 /** 207 * Resets the current unpack pixel buffer to 0 (default value.) 208 */ 209 bool unbindPixelBuffer(); 210 211 /** 212 * Binds an attrib to the specified float vertex pointer. 213 * Assumes a stride of gMeshStride and a size of 2. 214 */ 215 void bindPositionVertexPointer(bool force, const GLvoid* vertices, GLsizei stride = gMeshStride); 216 217 /** 218 * Binds an attrib to the specified float vertex pointer. 219 * Assumes a stride of gMeshStride and a size of 2. 220 */ 221 void bindTexCoordsVertexPointer(bool force, const GLvoid* vertices, GLsizei stride = gMeshStride); 222 223 /** 224 * Resets the vertex pointers. 225 */ 226 void resetVertexPointers(); 227 void resetTexCoordsVertexPointer(); 228 229 void enableTexCoordsVertexArray(); 230 void disableTexCoordsVertexArray(); 231 232 /** 233 * Activate the specified texture unit. The texture unit must 234 * be specified using an integer number (0 for GL_TEXTURE0 etc.) 235 */ 236 void activeTexture(GLuint textureUnit); 237 238 /** 239 * Invalidate the cached value of the active texture unit. 240 */ 241 void resetActiveTexture(); 242 243 /** 244 * Binds the specified texture as a GL_TEXTURE_2D texture. 245 * All texture bindings must be performed with this method or 246 * bindTexture(GLenum, GLuint). 247 */ 248 void bindTexture(GLuint texture); 249 250 /** 251 * Binds the specified texture with the specified render target. 252 * All texture bindings must be performed with this method or 253 * bindTexture(GLuint). 254 */ 255 void bindTexture(GLenum target, GLuint texture); 256 257 /** 258 * Deletes the specified texture and clears it from the cache 259 * of bound textures. 260 * All textures must be deleted using this method. 261 */ 262 void deleteTexture(GLuint texture); 263 264 /** 265 * Signals that the cache of bound textures should be cleared. 266 * Other users of the context may have altered which textures are bound. 267 */ 268 void resetBoundTextures(); 269 270 /** 271 * Clear the cache of bound textures. 272 */ 273 void unbindTexture(GLuint texture); 274 275 /** 276 * Sets the scissor for the current surface. 277 */ 278 bool setScissor(GLint x, GLint y, GLint width, GLint height); 279 280 /** 281 * Resets the scissor state. 282 */ 283 void resetScissor(); 284 285 bool enableScissor(); 286 bool disableScissor(); 287 void setScissorEnabled(bool enabled); 288 289 void startTiling(GLuint x, GLuint y, GLuint width, GLuint height, bool discard); 290 void endTiling(); 291 292 /** 293 * Returns the mesh used to draw regions. Calling this method will 294 * bind a VBO of type GL_ELEMENT_ARRAY_BUFFER that contains the 295 * indices for the region mesh. 296 */ 297 TextureVertex* getRegionMesh(); 298 299 /** 300 * Displays the memory usage of each cache and the total sum. 301 */ 302 void dumpMemoryUsage(); 303 void dumpMemoryUsage(String8& log); 304 305 bool hasRegisteredFunctors(); 306 void registerFunctors(uint32_t functorCount); 307 void unregisterFunctors(uint32_t functorCount); 308 309 bool blend; 310 GLenum lastSrcMode; 311 GLenum lastDstMode; 312 Program* currentProgram; 313 bool scissorEnabled; 314 315 bool drawDeferDisabled; 316 bool drawReorderDisabled; 317 318 // VBO to draw with 319 GLuint meshBuffer; 320 321 // Misc 322 GLint maxTextureSize; 323 324 // Debugging 325 bool debugLayersUpdates; 326 bool debugOverdraw; 327 328 enum StencilClipDebug { 329 kStencilHide, 330 kStencilShowHighlight, 331 kStencilShowRegion 332 }; 333 StencilClipDebug debugStencilClip; 334 335 TextureCache textureCache; 336 LayerCache layerCache; 337 RenderBufferCache renderBufferCache; 338 GradientCache gradientCache; 339 ProgramCache programCache; 340 PathCache pathCache; 341 PatchCache patchCache; 342 TessellationCache tessellationCache; 343 TextDropShadowCache dropShadowCache; 344 FboCache fboCache; 345 ResourceCache resourceCache; 346 347 GammaFontRenderer* fontRenderer; 348 349 TaskManager tasks; 350 351 Dither dither; 352 Stencil stencil; 353 354 AssetAtlas assetAtlas; 355 356 bool gpuPixelBuffersEnabled; 357 358 // Debug methods 359 PFNGLINSERTEVENTMARKEREXTPROC eventMark; 360 PFNGLPUSHGROUPMARKEREXTPROC startMark; 361 PFNGLPOPGROUPMARKEREXTPROC endMark; 362 363 PFNGLLABELOBJECTEXTPROC setLabel; 364 PFNGLGETOBJECTLABELEXTPROC getLabel; 365 366 // TEMPORARY properties 367 void initTempProperties(); 368 void setTempProperty(const char* name, const char* value); 369 370 float propertyLightDiameter; 371 float propertyLightPosY; 372 float propertyLightPosZ; 373 float propertyAmbientRatio; 374 int propertyAmbientShadowStrength; 375 int propertySpotShadowStrength; 376 377private: 378 enum OverdrawColorSet { 379 kColorSet_Default = 0, 380 kColorSet_Deuteranomaly 381 }; 382 383 void initFont(); 384 void initExtensions(); 385 void initConstraints(); 386 void initStaticProperties(); 387 388 bool bindIndicesBufferInternal(const GLuint buffer); 389 390 static void eventMarkNull(GLsizei length, const GLchar* marker) { } 391 static void startMarkNull(GLsizei length, const GLchar* marker) { } 392 static void endMarkNull() { } 393 394 static void setLabelNull(GLenum type, uint object, GLsizei length, 395 const char* label) { } 396 static void getLabelNull(GLenum type, uint object, GLsizei bufferSize, 397 GLsizei* length, char* label) { 398 if (length) *length = 0; 399 if (label) *label = '\0'; 400 } 401 402 GLuint mCurrentBuffer; 403 GLuint mCurrentIndicesBuffer; 404 GLuint mCurrentPixelBuffer; 405 const void* mCurrentPositionPointer; 406 GLsizei mCurrentPositionStride; 407 const void* mCurrentTexCoordsPointer; 408 GLsizei mCurrentTexCoordsStride; 409 410 bool mTexCoordsArrayEnabled; 411 412 GLuint mTextureUnit; 413 414 GLint mScissorX; 415 GLint mScissorY; 416 GLint mScissorWidth; 417 GLint mScissorHeight; 418 419 Extensions& mExtensions; 420 421 // Used to render layers 422 TextureVertex* mRegionMesh; 423 424 // Global index buffer 425 GLuint mMeshIndices; 426 GLuint mShadowStripsIndices; 427 428 mutable Mutex mGarbageLock; 429 Vector<Layer*> mLayerGarbage; 430 431 DebugLevel mDebugLevel; 432 bool mInitialized; 433 434 uint32_t mFunctorsCount; 435 436 // Caches texture bindings for the GL_TEXTURE_2D target 437 GLuint mBoundTextures[REQUIRED_TEXTURE_UNITS_COUNT]; 438 439 OverdrawColorSet mOverdrawDebugColorSet; 440 441 RenderState* mRenderState; 442}; // class Caches 443 444}; // namespace uirenderer 445}; // namespace android 446 447#endif // ANDROID_HWUI_CACHES_H 448