FontRenderer.h revision 257ae3502cfad43df681b1783528d645bdabc63f
1694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy/* 2694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy * Copyright (C) 2010 The Android Open Source Project 3694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy * 4694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy * Licensed under the Apache License, Version 2.0 (the "License"); 5694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy * you may not use this file except in compliance with the License. 6694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy * You may obtain a copy of the License at 7694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy * 8694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy * http://www.apache.org/licenses/LICENSE-2.0 9694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy * 10694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy * Unless required by applicable law or agreed to in writing, software 11694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy * distributed under the License is distributed on an "AS IS" BASIS, 12694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy * See the License for the specific language governing permissions and 14694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy * limitations under the License. 15694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy */ 16694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 175b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#ifndef ANDROID_HWUI_FONT_RENDERER_H 185b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#define ANDROID_HWUI_FONT_RENDERER_H 19694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 20e3a9b24b5e3f9b2058486814a6d27729e51ad466Romain Guy#include <utils/LruCache.h> 21694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy#include <utils/Vector.h> 22694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 23694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy#include <SkPaint.h> 24694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 25694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy#include <GLES2/gl2.h> 26694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 279f5dab3fc228fa11c32b483e6101ec086895a32bRomain Guy#include "font/FontUtil.h" 289f5dab3fc228fa11c32b483e6101ec086895a32bRomain Guy#include "font/CacheTexture.h" 299f5dab3fc228fa11c32b483e6101ec086895a32bRomain Guy#include "font/CachedGlyphInfo.h" 309f5dab3fc228fa11c32b483e6101ec086895a32bRomain Guy#include "font/Font.h" 31115096f50a560e64a7f95d37686d4861042c7aebRomain Guy#include "utils/SortedList.h" 32e3a9b24b5e3f9b2058486814a6d27729e51ad466Romain Guy#include "Matrix.h" 3351769a68a5cb34e9564740c6a854fcb93018789dRomain Guy#include "Properties.h" 3409147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy 35f2d8ccc15d7272b3416f73605c1f31d1d346bd40Chris Craiknamespace RSC { 36f2d8ccc15d7272b3416f73605c1f31d1d346bd40Chris Craik class Element; 37f2d8ccc15d7272b3416f73605c1f31d1d346bd40Chris Craik class RS; 38f2d8ccc15d7272b3416f73605c1f31d1d346bd40Chris Craik class ScriptIntrinsicBlur; 39f2d8ccc15d7272b3416f73605c1f31d1d346bd40Chris Craik} 40f2d8ccc15d7272b3416f73605c1f31d1d346bd40Chris Craik 41257ae3502cfad43df681b1783528d645bdabc63fRomain Guyclass Functor; 42257ae3502cfad43df681b1783528d645bdabc63fRomain Guy 43694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guynamespace android { 44694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guynamespace uirenderer { 45694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 46726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 47726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy// Renderer 48726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 49726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy 50694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guyclass FontRenderer { 51694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guypublic: 52694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy FontRenderer(); 53694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy ~FontRenderer(); 54694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 559a8245629d69d81e0b62e52970feaf9c02580e75Chet Haase void flushLargeCaches(); 56694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 57b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy void setGammaTable(const uint8_t* gammaTable) { 58b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy mGammaTable = gammaTable; 59b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy } 60b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy 61e3a9b24b5e3f9b2058486814a6d27729e51ad466Romain Guy void setFont(SkPaint* paint, const mat4& matrix); 62e816baea651476aca4407200d4a5e629b9ab8dfaChet Haase 63e3a9b24b5e3f9b2058486814a6d27729e51ad466Romain Guy void precache(SkPaint* paint, const char* text, int numGlyphs, const mat4& matrix); 64e816baea651476aca4407200d4a5e629b9ab8dfaChet Haase 65671d6cf460531825a321edb200523d0faa7792c9Romain Guy // bounds is an out parameter 66671d6cf460531825a321edb200523d0faa7792c9Romain Guy bool renderPosText(SkPaint* paint, const Rect* clip, const char *text, uint32_t startIndex, 67257ae3502cfad43df681b1783528d645bdabc63fRomain Guy uint32_t len, int numGlyphs, int x, int y, const float* positions, Rect* bounds, 68257ae3502cfad43df681b1783528d645bdabc63fRomain Guy Functor* functor); 699777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy // bounds is an out parameter 709777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy bool renderTextOnPath(SkPaint* paint, const Rect* clip, const char *text, uint32_t startIndex, 719777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy uint32_t len, int numGlyphs, SkPath* path, float hOffset, float vOffset, Rect* bounds); 72694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 73f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk struct DropShadow { 741e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy DropShadow() { }; 751e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 761e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy DropShadow(const DropShadow& dropShadow): 771e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy width(dropShadow.width), height(dropShadow.height), 781e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy image(dropShadow.image), penX(dropShadow.penX), 791e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy penY(dropShadow.penY) { 801e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy } 811e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 82f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk uint32_t width; 83f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk uint32_t height; 84f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk uint8_t* image; 85f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk int32_t penX; 86f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk int32_t penY; 87f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk }; 88f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk 89f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk // After renderDropShadow returns, the called owns the memory in DropShadow.image 90f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk // and is responsible for releasing it when it's done with it 91f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk DropShadow renderDropShadow(SkPaint* paint, const char *text, uint32_t startIndex, 92416a847633680d94efb926837efdc18726d54918Raph Levien uint32_t len, int numGlyphs, uint32_t radius, const float* positions); 93f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk 94257ae3502cfad43df681b1783528d645bdabc63fRomain Guy void setTextureFiltering(bool linearFiltering) { 958087246d9964b11de8ce116bc63b156faa4197e0Romain Guy mLinearFiltering = linearFiltering; 96c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy } 97c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy 987de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t getCacheSize() const { 997de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t size = 0; 100378e919ccb75efe24d5a5aa75ac2c6ef255dcb48Chet Haase for (uint32_t i = 0; i < mCacheTextures.size(); i++) { 101378e919ccb75efe24d5a5aa75ac2c6ef255dcb48Chet Haase CacheTexture* cacheTexture = mCacheTextures[i]; 1028087246d9964b11de8ce116bc63b156faa4197e0Romain Guy if (cacheTexture && cacheTexture->getTexture()) { 1038087246d9964b11de8ce116bc63b156faa4197e0Romain Guy size += cacheTexture->getWidth() * cacheTexture->getHeight(); 104378e919ccb75efe24d5a5aa75ac2c6ef255dcb48Chet Haase } 1057de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 1067de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase return size; 107c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy } 108c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy 1099b1204baf4740b4d443e72157dea98571cf84e1fRomain Guyprivate: 110694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy friend class Font; 111694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 112b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy const uint8_t* mGammaTable; 113b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy 1142a47c14e2a6f152496b43104bc785c488583fd59Chet Haase void allocateTextureMemory(CacheTexture* cacheTexture); 1159a8245629d69d81e0b62e52970feaf9c02580e75Chet Haase void deallocateTextureMemory(CacheTexture* cacheTexture); 1167de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase void initTextTexture(); 1179777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy CacheTexture* createCacheTexture(int width, int height, bool allocate); 1187de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase void cacheBitmap(const SkGlyph& glyph, CachedGlyphInfo* cachedGlyph, 119f942cf10e04567f6b9456f6258e29c803b8bfb41Chet Haase uint32_t *retOriginX, uint32_t *retOriginY, bool precaching); 120378e919ccb75efe24d5a5aa75ac2c6ef255dcb48Chet Haase CacheTexture* cacheBitmapInTexture(const SkGlyph& glyph, uint32_t* startX, uint32_t* startY); 121694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 122694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void flushAllAndInvalidate(); 123694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void initVertexArrayBuffers(); 124694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 125694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void checkInit(); 126257ae3502cfad43df681b1783528d645bdabc63fRomain Guy void initRender(const Rect* clip, Rect* bounds, Functor* functor); 127671d6cf460531825a321edb200523d0faa7792c9Romain Guy void finishRender(); 128694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 129694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void issueDrawCommand(); 1309777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy void appendMeshQuadNoClip(float x1, float y1, float u1, float v1, 1319777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy float x2, float y2, float u2, float v2, 1329777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy float x3, float y3, float u3, float v3, 1339777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy float x4, float y4, float u4, float v4, CacheTexture* texture); 134d71dd367af604571c7d00ca473184a1b9240eca2Romain Guy void appendMeshQuad(float x1, float y1, float u1, float v1, 135d71dd367af604571c7d00ca473184a1b9240eca2Romain Guy float x2, float y2, float u2, float v2, 136d71dd367af604571c7d00ca473184a1b9240eca2Romain Guy float x3, float y3, float u3, float v3, 1377de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase float x4, float y4, float u4, float v4, CacheTexture* texture); 1389777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy void appendRotatedMeshQuad(float x1, float y1, float u1, float v1, 1399777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy float x2, float y2, float u2, float v2, 1409777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy float x3, float y3, float u3, float v3, 1419777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy float x4, float y4, float u4, float v4, CacheTexture* texture); 142694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 1439b1204baf4740b4d443e72157dea98571cf84e1fRomain Guy void removeFont(const Font* font); 1449b1204baf4740b4d443e72157dea98571cf84e1fRomain Guy 1459b1204baf4740b4d443e72157dea98571cf84e1fRomain Guy void checkTextureUpdate(); 1469b1204baf4740b4d443e72157dea98571cf84e1fRomain Guy 1479b1204baf4740b4d443e72157dea98571cf84e1fRomain Guy void setTextureDirty() { 1489b1204baf4740b4d443e72157dea98571cf84e1fRomain Guy mUploadTexture = true; 1499b1204baf4740b4d443e72157dea98571cf84e1fRomain Guy } 1509b1204baf4740b4d443e72157dea98571cf84e1fRomain Guy 1517de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mSmallCacheWidth; 1527de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mSmallCacheHeight; 153eb32a499194119b3783b86c925172df02e5d2685Chet Haase uint32_t mLargeCacheWidth; 154eb32a499194119b3783b86c925172df02e5d2685Chet Haase uint32_t mLargeCacheHeight; 155694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 156378e919ccb75efe24d5a5aa75ac2c6ef255dcb48Chet Haase Vector<CacheTexture*> mCacheTextures; 157694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 15809147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy Font* mCurrentFont; 159e3a9b24b5e3f9b2058486814a6d27729e51ad466Romain Guy LruCache<Font::FontDescription, Font*> mActiveFonts; 160694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 1617de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture* mCurrentCacheTexture; 1627de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 163694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy bool mUploadTexture; 164694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 165694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t mMaxNumberOfQuads; 166694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t mIndexBufferID; 167694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 168257ae3502cfad43df681b1783528d645bdabc63fRomain Guy Functor* mFunctor; 16909147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy const Rect* mClip; 1705b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect* mBounds; 1715b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bool mDrawn; 17209147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy 173694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy bool mInitialized; 17489a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk 175e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy bool mLinearFiltering; 176e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy 177f2d8ccc15d7272b3416f73605c1f31d1d346bd40Chris Craik // RS constructs 178f2d8ccc15d7272b3416f73605c1f31d1d346bd40Chris Craik sp<RSC::RS> mRs; 179f2d8ccc15d7272b3416f73605c1f31d1d346bd40Chris Craik sp<const RSC::Element> mRsElement; 180f2d8ccc15d7272b3416f73605c1f31d1d346bd40Chris Craik sp<RSC::ScriptIntrinsicBlur> mRsScript; 181f2d8ccc15d7272b3416f73605c1f31d1d346bd40Chris Craik 1829b1204baf4740b4d443e72157dea98571cf84e1fRomain Guy static void computeGaussianWeights(float* weights, int32_t radius); 1839b1204baf4740b4d443e72157dea98571cf84e1fRomain Guy static void horizontalBlur(float* weights, int32_t radius, const uint8_t *source, uint8_t *dest, 1841e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy int32_t width, int32_t height); 1859b1204baf4740b4d443e72157dea98571cf84e1fRomain Guy static void verticalBlur(float* weights, int32_t radius, const uint8_t *source, uint8_t *dest, 1861e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy int32_t width, int32_t height); 187f2d8ccc15d7272b3416f73605c1f31d1d346bd40Chris Craik 188f2d8ccc15d7272b3416f73605c1f31d1d346bd40Chris Craik // the input image handle may have its pointer replaced (to avoid copies) 189f2d8ccc15d7272b3416f73605c1f31d1d346bd40Chris Craik void blurImage(uint8_t** image, int32_t width, int32_t height, int32_t radius); 190694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy}; 191694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 192694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy}; // namespace uirenderer 193694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy}; // namespace android 194694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 1955b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif // ANDROID_HWUI_FONT_RENDERER_H 196