FontRenderer.h revision e3a9b24b5e3f9b2058486814a6d27729e51ad466
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" 31e3a9b24b5e3f9b2058486814a6d27729e51ad466Romain Guy#include "Matrix.h" 3251769a68a5cb34e9564740c6a854fcb93018789dRomain Guy#include "Properties.h" 3309147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy 34694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guynamespace android { 35694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guynamespace uirenderer { 36694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 37726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 38726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy// Renderer 39726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 40726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy 41694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guyclass FontRenderer { 42694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guypublic: 43694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy FontRenderer(); 44694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy ~FontRenderer(); 45694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 469a8245629d69d81e0b62e52970feaf9c02580e75Chet Haase void flushLargeCaches(); 47694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 48b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy void setGammaTable(const uint8_t* gammaTable) { 49b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy mGammaTable = gammaTable; 50b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy } 51b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy 52e3a9b24b5e3f9b2058486814a6d27729e51ad466Romain Guy void setFont(SkPaint* paint, const mat4& matrix); 53e816baea651476aca4407200d4a5e629b9ab8dfaChet Haase 54e3a9b24b5e3f9b2058486814a6d27729e51ad466Romain Guy void precache(SkPaint* paint, const char* text, int numGlyphs, const mat4& matrix); 55e816baea651476aca4407200d4a5e629b9ab8dfaChet Haase 56671d6cf460531825a321edb200523d0faa7792c9Romain Guy // bounds is an out parameter 57671d6cf460531825a321edb200523d0faa7792c9Romain Guy bool renderPosText(SkPaint* paint, const Rect* clip, const char *text, uint32_t startIndex, 58671d6cf460531825a321edb200523d0faa7792c9Romain Guy uint32_t len, int numGlyphs, int x, int y, const float* positions, Rect* bounds); 599777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy // bounds is an out parameter 609777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy bool renderTextOnPath(SkPaint* paint, const Rect* clip, const char *text, uint32_t startIndex, 619777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy uint32_t len, int numGlyphs, SkPath* path, float hOffset, float vOffset, Rect* bounds); 62694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 63f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk struct DropShadow { 641e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy DropShadow() { }; 651e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 661e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy DropShadow(const DropShadow& dropShadow): 671e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy width(dropShadow.width), height(dropShadow.height), 681e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy image(dropShadow.image), penX(dropShadow.penX), 691e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy penY(dropShadow.penY) { 701e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy } 711e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 72f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk uint32_t width; 73f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk uint32_t height; 74f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk uint8_t* image; 75f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk int32_t penX; 76f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk int32_t penY; 77f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk }; 78f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk 79f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk // After renderDropShadow returns, the called owns the memory in DropShadow.image 80f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk // and is responsible for releasing it when it's done with it 81f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk DropShadow renderDropShadow(SkPaint* paint, const char *text, uint32_t startIndex, 82416a847633680d94efb926837efdc18726d54918Raph Levien uint32_t len, int numGlyphs, uint32_t radius, const float* positions); 83f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk 84e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy GLuint getTexture(bool linearFiltering = false) { 85694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy checkInit(); 86ae91c4cbc79ea910753be65e2f1d7899abcb4da2Romain Guy 878087246d9964b11de8ce116bc63b156faa4197e0Romain Guy mCurrentCacheTexture->setLinearFiltering(linearFiltering); 888087246d9964b11de8ce116bc63b156faa4197e0Romain Guy mLinearFiltering = linearFiltering; 89ae91c4cbc79ea910753be65e2f1d7899abcb4da2Romain Guy 908087246d9964b11de8ce116bc63b156faa4197e0Romain Guy return mCurrentCacheTexture->getTextureId(); 91c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy } 92c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy 937de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t getCacheSize() const { 947de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t size = 0; 95378e919ccb75efe24d5a5aa75ac2c6ef255dcb48Chet Haase for (uint32_t i = 0; i < mCacheTextures.size(); i++) { 96378e919ccb75efe24d5a5aa75ac2c6ef255dcb48Chet Haase CacheTexture* cacheTexture = mCacheTextures[i]; 978087246d9964b11de8ce116bc63b156faa4197e0Romain Guy if (cacheTexture && cacheTexture->getTexture()) { 988087246d9964b11de8ce116bc63b156faa4197e0Romain Guy size += cacheTexture->getWidth() * cacheTexture->getHeight(); 99378e919ccb75efe24d5a5aa75ac2c6ef255dcb48Chet Haase } 1007de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 1017de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase return size; 102c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy } 103c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy 1049b1204baf4740b4d443e72157dea98571cf84e1fRomain Guyprivate: 105694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy friend class Font; 106694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 107b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy const uint8_t* mGammaTable; 108b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy 1092a47c14e2a6f152496b43104bc785c488583fd59Chet Haase void allocateTextureMemory(CacheTexture* cacheTexture); 1109a8245629d69d81e0b62e52970feaf9c02580e75Chet Haase void deallocateTextureMemory(CacheTexture* cacheTexture); 1117de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase void initTextTexture(); 1129777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy CacheTexture* createCacheTexture(int width, int height, bool allocate); 1137de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase void cacheBitmap(const SkGlyph& glyph, CachedGlyphInfo* cachedGlyph, 114f942cf10e04567f6b9456f6258e29c803b8bfb41Chet Haase uint32_t *retOriginX, uint32_t *retOriginY, bool precaching); 115378e919ccb75efe24d5a5aa75ac2c6ef255dcb48Chet Haase CacheTexture* cacheBitmapInTexture(const SkGlyph& glyph, uint32_t* startX, uint32_t* startY); 116694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 117694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void flushAllAndInvalidate(); 118694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void initVertexArrayBuffers(); 119694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 120694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void checkInit(); 121671d6cf460531825a321edb200523d0faa7792c9Romain Guy void initRender(const Rect* clip, Rect* bounds); 122671d6cf460531825a321edb200523d0faa7792c9Romain Guy void finishRender(); 123694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 124694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void issueDrawCommand(); 1259777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy void appendMeshQuadNoClip(float x1, float y1, float u1, float v1, 1269777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy float x2, float y2, float u2, float v2, 1279777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy float x3, float y3, float u3, float v3, 1289777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy float x4, float y4, float u4, float v4, CacheTexture* texture); 129d71dd367af604571c7d00ca473184a1b9240eca2Romain Guy void appendMeshQuad(float x1, float y1, float u1, float v1, 130d71dd367af604571c7d00ca473184a1b9240eca2Romain Guy float x2, float y2, float u2, float v2, 131d71dd367af604571c7d00ca473184a1b9240eca2Romain Guy float x3, float y3, float u3, float v3, 1327de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase float x4, float y4, float u4, float v4, CacheTexture* texture); 1339777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy void appendRotatedMeshQuad(float x1, float y1, float u1, float v1, 1349777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy float x2, float y2, float u2, float v2, 1359777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy float x3, float y3, float u3, float v3, 1369777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy float x4, float y4, float u4, float v4, CacheTexture* texture); 137694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 1389b1204baf4740b4d443e72157dea98571cf84e1fRomain Guy void removeFont(const Font* font); 1399b1204baf4740b4d443e72157dea98571cf84e1fRomain Guy 1407bb3cfe1cca4016ce95d3ef059761f4bb2d668bbSangkyu Lee void updateDrawParams(); 1419b1204baf4740b4d443e72157dea98571cf84e1fRomain Guy void checkTextureUpdate(); 1429b1204baf4740b4d443e72157dea98571cf84e1fRomain Guy 1439b1204baf4740b4d443e72157dea98571cf84e1fRomain Guy void setTextureDirty() { 1449b1204baf4740b4d443e72157dea98571cf84e1fRomain Guy mUploadTexture = true; 1459b1204baf4740b4d443e72157dea98571cf84e1fRomain Guy } 1469b1204baf4740b4d443e72157dea98571cf84e1fRomain Guy 1477de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mSmallCacheWidth; 1487de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mSmallCacheHeight; 149eb32a499194119b3783b86c925172df02e5d2685Chet Haase uint32_t mLargeCacheWidth; 150eb32a499194119b3783b86c925172df02e5d2685Chet Haase uint32_t mLargeCacheHeight; 151694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 152378e919ccb75efe24d5a5aa75ac2c6ef255dcb48Chet Haase Vector<CacheTexture*> mCacheTextures; 153694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 15409147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy Font* mCurrentFont; 155e3a9b24b5e3f9b2058486814a6d27729e51ad466Romain Guy LruCache<Font::FontDescription, Font*> mActiveFonts; 156694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 1577de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture* mCurrentCacheTexture; 1587de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 159694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy bool mUploadTexture; 160694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 161694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy // Pointer to vertex data to speed up frame to frame work 1629b1204baf4740b4d443e72157dea98571cf84e1fRomain Guy float* mTextMesh; 163694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t mCurrentQuadIndex; 1647bb3cfe1cca4016ce95d3ef059761f4bb2d668bbSangkyu Lee uint32_t mLastQuadIndex; 165694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t mMaxNumberOfQuads; 166694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 167694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t mIndexBufferID; 168694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 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 1777bb3cfe1cca4016ce95d3ef059761f4bb2d668bbSangkyu Lee Vector<uint16_t*> mDrawOffsets; 1787bb3cfe1cca4016ce95d3ef059761f4bb2d668bbSangkyu Lee Vector<uint32_t> mDrawCounts; 1797bb3cfe1cca4016ce95d3ef059761f4bb2d668bbSangkyu Lee Vector<CacheTexture*> mDrawCacheTextures; 1807bb3cfe1cca4016ce95d3ef059761f4bb2d668bbSangkyu Lee 1819b1204baf4740b4d443e72157dea98571cf84e1fRomain Guy /** We should consider multi-threading this code or using Renderscript **/ 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); 1879b1204baf4740b4d443e72157dea98571cf84e1fRomain Guy static void blurImage(uint8_t* image, int32_t width, int32_t height, int32_t radius); 188694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy}; 189694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 190694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy}; // namespace uirenderer 191694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy}; // namespace android 192694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 1935b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif // ANDROID_HWUI_FONT_RENDERER_H 194