FontRenderer.h revision 9777173eb6c9eb97c7921c8288ebc65e3ab3ce6f
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 20694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy#include <utils/String8.h> 2165ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk#include <utils/String16.h> 22694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy#include <utils/Vector.h> 23694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy#include <utils/KeyedVector.h> 24694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 25694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy#include <SkScalerContext.h> 26694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy#include <SkPaint.h> 279777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy#include <SkPathMeasure.h> 289777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy#include <SkPoint.h> 29694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 30694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy#include <GLES2/gl2.h> 31694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 3209147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy#include "Rect.h" 3351769a68a5cb34e9564740c6a854fcb93018789dRomain Guy#include "Properties.h" 3409147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy 35694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guynamespace android { 36694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guynamespace uirenderer { 37694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 38726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 39726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy// Defines 40726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 41726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy 42726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy#if RENDER_TEXT_AS_GLYPHS 43726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy typedef uint16_t glyph_t; 44726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy #define GET_METRICS(paint, glyph) paint->getGlyphMetrics(glyph) 45726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy #define GET_GLYPH(text) nextGlyph((const uint16_t**) &text) 46726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy #define IS_END_OF_STRING(glyph) false 47726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy#else 48726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy typedef SkUnichar glyph_t; 49726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy #define GET_METRICS(paint, glyph) paint->getUnicharMetrics(glyph) 50726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy #define GET_GLYPH(text) SkUTF16_NextUnichar((const uint16_t**) &text) 51726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy #define IS_END_OF_STRING(glyph) glyph < 0 52726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy#endif 53726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy 54726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 55726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy// Declarations 56726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 57726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy 58694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guyclass FontRenderer; 59694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 607de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haaseclass CacheTexture { 617de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haasepublic: 627de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture(){} 637de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture(uint8_t* texture, GLuint textureId, uint16_t width, uint16_t height) : 642a47c14e2a6f152496b43104bc785c488583fd59Chet Haase mTexture(texture), mTextureId(textureId), mWidth(width), mHeight(height), 652a47c14e2a6f152496b43104bc785c488583fd59Chet Haase mLinearFiltering(false) {} 667de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase ~CacheTexture() { 677de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase if (mTexture != NULL) { 687de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase delete[] mTexture; 697de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 707de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase if (mTextureId != 0) { 717de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase glDeleteTextures(1, &mTextureId); 727de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 737de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 747de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 757de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint8_t* mTexture; 767de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase GLuint mTextureId; 777de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint16_t mWidth; 787de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint16_t mHeight; 792a47c14e2a6f152496b43104bc785c488583fd59Chet Haase bool mLinearFiltering; 807de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase}; 817de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 827de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haaseclass CacheTextureLine { 837de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haasepublic: 847de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTextureLine(uint16_t maxWidth, uint16_t maxHeight, uint32_t currentRow, 857de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t currentCol, CacheTexture* cacheTexture): 867de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase mMaxHeight(maxHeight), 877de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase mMaxWidth(maxWidth), 887de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase mCurrentRow(currentRow), 897de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase mCurrentCol(currentCol), 907de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase mDirty(false), 917de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase mCacheTexture(cacheTexture){ 927de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 937de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 947de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase bool fitBitmap(const SkGlyph& glyph, uint32_t *retOriginX, uint32_t *retOriginY); 957de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 967de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint16_t mMaxHeight; 977de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint16_t mMaxWidth; 987de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mCurrentRow; 997de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mCurrentCol; 1007de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase bool mDirty; 1017de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture *mCacheTexture; 1027de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase}; 1037de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 1047de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haasestruct CachedGlyphInfo { 1057de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // Has the cache been invalidated? 1067de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase bool mIsValid; 1077de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // Location of the cached glyph in the bitmap 1087de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // in case we need to resize the texture or 1097de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // render to bitmap 1107de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mStartX; 1117de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mStartY; 1127de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mBitmapWidth; 1137de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mBitmapHeight; 1147de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // Also cache texture coords for the quad 1157de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase float mBitmapMinU; 1167de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase float mBitmapMinV; 1177de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase float mBitmapMaxU; 1187de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase float mBitmapMaxV; 1197de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // Minimize how much we call freetype 1207de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mGlyphIndex; 1217de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mAdvanceX; 1227de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mAdvanceY; 1237de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // Values below contain a glyph's origin in the bitmap 1247de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase int32_t mBitmapLeft; 1257de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase int32_t mBitmapTop; 1267de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // Auto-kerning 1277de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase SkFixed mLsbDelta; 1287de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase SkFixed mRsbDelta; 1297de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTextureLine* mCachedTextureLine; 1307de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase}; 1317de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 1327de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 133726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 134726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy// Font 135726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 136726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy 13751769a68a5cb34e9564740c6a854fcb93018789dRomain Guy/** 13851769a68a5cb34e9564740c6a854fcb93018789dRomain Guy * Represents a font, defined by a Skia font id and a font size. A font is used 13951769a68a5cb34e9564740c6a854fcb93018789dRomain Guy * to generate glyphs and cache them in the FontState. 14051769a68a5cb34e9564740c6a854fcb93018789dRomain Guy */ 141694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guyclass Font { 142694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guypublic: 143325a0f969c1d803d7e39a9caee8cc3d400350659Romain Guy enum Style { 144c7b25be64f679e78dfa79080b44be18c9974004cRomain Guy kFakeBold = 1 145325a0f969c1d803d7e39a9caee8cc3d400350659Romain Guy }; 146325a0f969c1d803d7e39a9caee8cc3d400350659Romain Guy 147694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy ~Font(); 148694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 14951769a68a5cb34e9564740c6a854fcb93018789dRomain Guy /** 15051769a68a5cb34e9564740c6a854fcb93018789dRomain Guy * Renders the specified string of text. 151f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk * If bitmap is specified, it will be used as the render target 15251769a68a5cb34e9564740c6a854fcb93018789dRomain Guy */ 153726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy void render(SkPaint* paint, const char *text, uint32_t start, uint32_t len, 154726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy int numGlyphs, int x, int y, uint8_t *bitmap = NULL, 155726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy uint32_t bitmapW = 0, uint32_t bitmapH = 0); 156671d6cf460531825a321edb200523d0faa7792c9Romain Guy 157671d6cf460531825a321edb200523d0faa7792c9Romain Guy void render(SkPaint* paint, const char *text, uint32_t start, uint32_t len, 158671d6cf460531825a321edb200523d0faa7792c9Romain Guy int numGlyphs, int x, int y, const float* positions); 159671d6cf460531825a321edb200523d0faa7792c9Romain Guy 1609777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy void render(SkPaint* paint, const char *text, uint32_t start, uint32_t len, 1619777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy int numGlyphs, SkPath* path, float hOffset, float vOffset); 1629777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy 16351769a68a5cb34e9564740c6a854fcb93018789dRomain Guy /** 16451769a68a5cb34e9564740c6a854fcb93018789dRomain Guy * Creates a new font associated with the specified font state. 16551769a68a5cb34e9564740c6a854fcb93018789dRomain Guy */ 1662577db1ec135a1470a2c42139772ec97a6c30e78Romain Guy static Font* create(FontRenderer* state, uint32_t fontId, float fontSize, 167bd496bc3d481f9cfc39007d22372d3a1a8809f96Romain Guy int flags, uint32_t italicStyle, uint32_t scaleX, SkPaint::Style style, 168bd496bc3d481f9cfc39007d22372d3a1a8809f96Romain Guy uint32_t strokeWidth); 169694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 170694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guyprotected: 171694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy friend class FontRenderer; 172671d6cf460531825a321edb200523d0faa7792c9Romain Guy typedef void (Font::*RenderGlyph)(CachedGlyphInfo*, int, int, uint8_t*, 173671d6cf460531825a321edb200523d0faa7792c9Romain Guy uint32_t, uint32_t, Rect*, const float*); 174694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 175f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk enum RenderMode { 176f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk FRAMEBUFFER, 177f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk BITMAP, 178f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk MEASURE, 179f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk }; 180f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk 181726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy void render(SkPaint* paint, const char *text, uint32_t start, uint32_t len, 182726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy int numGlyphs, int x, int y, RenderMode mode, uint8_t *bitmap, 183671d6cf460531825a321edb200523d0faa7792c9Romain Guy uint32_t bitmapW, uint32_t bitmapH, Rect *bounds, const float* positions); 184f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk 185726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy void measure(SkPaint* paint, const char* text, uint32_t start, uint32_t len, 186726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy int numGlyphs, Rect *bounds); 187f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk 1888668f8a633d9299091556c3b2e5ae07be8dce360Chet Haase Font(FontRenderer* state, uint32_t fontId, float fontSize, int flags, uint32_t italicStyle, 189bd496bc3d481f9cfc39007d22372d3a1a8809f96Romain Guy uint32_t scaleX, SkPaint::Style style, uint32_t strokeWidth); 190694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 191726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy // Cache of glyphs 192726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy DefaultKeyedVector<glyph_t, CachedGlyphInfo*> mCachedGlyphs; 193694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 1949a8245629d69d81e0b62e52970feaf9c02580e75Chet Haase void invalidateTextureCache(CacheTextureLine *cacheLine = NULL); 195bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy 196726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy CachedGlyphInfo* cacheGlyph(SkPaint* paint, glyph_t glyph); 197671d6cf460531825a321edb200523d0faa7792c9Romain Guy void updateGlyphCache(SkPaint* paint, const SkGlyph& skiaGlyph, CachedGlyphInfo* glyph); 198671d6cf460531825a321edb200523d0faa7792c9Romain Guy 199671d6cf460531825a321edb200523d0faa7792c9Romain Guy void measureCachedGlyph(CachedGlyphInfo* glyph, int x, int y, 200671d6cf460531825a321edb200523d0faa7792c9Romain Guy uint8_t *bitmap, uint32_t bitmapW, uint32_t bitmapH, 201671d6cf460531825a321edb200523d0faa7792c9Romain Guy Rect* bounds, const float* pos); 202671d6cf460531825a321edb200523d0faa7792c9Romain Guy void drawCachedGlyph(CachedGlyphInfo* glyph, int x, int y, 203671d6cf460531825a321edb200523d0faa7792c9Romain Guy uint8_t *bitmap, uint32_t bitmapW, uint32_t bitmapH, 204671d6cf460531825a321edb200523d0faa7792c9Romain Guy Rect* bounds, const float* pos); 205671d6cf460531825a321edb200523d0faa7792c9Romain Guy void drawCachedGlyphBitmap(CachedGlyphInfo* glyph, int x, int y, 206671d6cf460531825a321edb200523d0faa7792c9Romain Guy uint8_t *bitmap, uint32_t bitmapW, uint32_t bitmapH, 207671d6cf460531825a321edb200523d0faa7792c9Romain Guy Rect* bounds, const float* pos); 2089777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy void drawCachedGlyph(CachedGlyphInfo* glyph, float x, float hOffset, float vOffset, 2099777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy SkPathMeasure& measure, SkPoint* position, SkVector* tangent); 210bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy 211726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy CachedGlyphInfo* getCachedGlyph(SkPaint* paint, glyph_t textUnit); 212726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy 213726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy static glyph_t nextGlyph(const uint16_t** srcPtr) { 214726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy const uint16_t* src = *srcPtr; 215726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy glyph_t g = *src++; 216726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy *srcPtr = src; 217726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy return g; 218726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy } 21965ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk 220bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy FontRenderer* mState; 221bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy uint32_t mFontId; 222bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy float mFontSize; 223325a0f969c1d803d7e39a9caee8cc3d400350659Romain Guy int mFlags; 2242577db1ec135a1470a2c42139772ec97a6c30e78Romain Guy uint32_t mItalicStyle; 2258668f8a633d9299091556c3b2e5ae07be8dce360Chet Haase uint32_t mScaleX; 226bd496bc3d481f9cfc39007d22372d3a1a8809f96Romain Guy SkPaint::Style mStyle; 227bd496bc3d481f9cfc39007d22372d3a1a8809f96Romain Guy uint32_t mStrokeWidth; 228694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy}; 229694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 230726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 231726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy// Renderer 232726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 233726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy 234694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guyclass FontRenderer { 235694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guypublic: 236694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy FontRenderer(); 237694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy ~FontRenderer(); 238694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 239694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void init(); 240694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void deinit(); 2419a8245629d69d81e0b62e52970feaf9c02580e75Chet Haase void flushLargeCaches(); 242694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 243b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy void setGammaTable(const uint8_t* gammaTable) { 244b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy mGammaTable = gammaTable; 245b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy } 246b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy 24765ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk void setFont(SkPaint* paint, uint32_t fontId, float fontSize); 248671d6cf460531825a321edb200523d0faa7792c9Romain Guy // bounds is an out parameter 2495b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bool renderText(SkPaint* paint, const Rect* clip, const char *text, uint32_t startIndex, 2505b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy uint32_t len, int numGlyphs, int x, int y, Rect* bounds); 251671d6cf460531825a321edb200523d0faa7792c9Romain Guy // bounds is an out parameter 252671d6cf460531825a321edb200523d0faa7792c9Romain Guy bool renderPosText(SkPaint* paint, const Rect* clip, const char *text, uint32_t startIndex, 253671d6cf460531825a321edb200523d0faa7792c9Romain Guy uint32_t len, int numGlyphs, int x, int y, const float* positions, Rect* bounds); 2549777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy // bounds is an out parameter 2559777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy bool renderTextOnPath(SkPaint* paint, const Rect* clip, const char *text, uint32_t startIndex, 2569777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy uint32_t len, int numGlyphs, SkPath* path, float hOffset, float vOffset, Rect* bounds); 257694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 258f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk struct DropShadow { 2591e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy DropShadow() { }; 2601e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 2611e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy DropShadow(const DropShadow& dropShadow): 2621e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy width(dropShadow.width), height(dropShadow.height), 2631e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy image(dropShadow.image), penX(dropShadow.penX), 2641e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy penY(dropShadow.penY) { 2651e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy } 2661e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 267f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk uint32_t width; 268f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk uint32_t height; 269f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk uint8_t* image; 270f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk int32_t penX; 271f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk int32_t penY; 272f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk }; 273f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk 274f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk // After renderDropShadow returns, the called owns the memory in DropShadow.image 275f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk // and is responsible for releasing it when it's done with it 276f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk DropShadow renderDropShadow(SkPaint* paint, const char *text, uint32_t startIndex, 2771e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy uint32_t len, int numGlyphs, uint32_t radius); 278f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk 279e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy GLuint getTexture(bool linearFiltering = false) { 280694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy checkInit(); 2812a47c14e2a6f152496b43104bc785c488583fd59Chet Haase if (linearFiltering != mCurrentCacheTexture->mLinearFiltering) { 2822a47c14e2a6f152496b43104bc785c488583fd59Chet Haase mCurrentCacheTexture->mLinearFiltering = linearFiltering; 283e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy mLinearFiltering = linearFiltering; 284e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy const GLenum filtering = linearFiltering ? GL_LINEAR : GL_NEAREST; 285e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy 2867de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase glBindTexture(GL_TEXTURE_2D, mCurrentCacheTexture->mTextureId); 287e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filtering); 288e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filtering); 289e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy } 2907de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase return mCurrentCacheTexture->mTextureId; 291c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy } 292c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy 2937de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t getCacheSize() const { 2947de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t size = 0; 2957de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase if (mCacheTextureSmall != NULL && mCacheTextureSmall->mTexture != NULL) { 2967de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase size += mCacheTextureSmall->mWidth * mCacheTextureSmall->mHeight; 2977de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 2987de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase if (mCacheTexture128 != NULL && mCacheTexture128->mTexture != NULL) { 2997de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase size += mCacheTexture128->mWidth * mCacheTexture128->mHeight; 3007de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 3017de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase if (mCacheTexture256 != NULL && mCacheTexture256->mTexture != NULL) { 3027de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase size += mCacheTexture256->mWidth * mCacheTexture256->mHeight; 3037de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 3047de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase if (mCacheTexture512 != NULL && mCacheTexture512->mTexture != NULL) { 3057de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase size += mCacheTexture512->mWidth * mCacheTexture512->mHeight; 3067de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 3077de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase return size; 308c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy } 309c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy 310694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guyprotected: 311694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy friend class Font; 312694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 313b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy const uint8_t* mGammaTable; 314b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy 3152a47c14e2a6f152496b43104bc785c488583fd59Chet Haase void allocateTextureMemory(CacheTexture* cacheTexture); 3169a8245629d69d81e0b62e52970feaf9c02580e75Chet Haase void deallocateTextureMemory(CacheTexture* cacheTexture); 3177de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase void initTextTexture(); 3189777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy CacheTexture* createCacheTexture(int width, int height, bool allocate); 3197de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase void cacheBitmap(const SkGlyph& glyph, CachedGlyphInfo* cachedGlyph, 3207de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t *retOriginX, uint32_t *retOriginY); 321694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 322694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void flushAllAndInvalidate(); 323694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void initVertexArrayBuffers(); 324694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 325694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void checkInit(); 326671d6cf460531825a321edb200523d0faa7792c9Romain Guy void initRender(const Rect* clip, Rect* bounds); 327671d6cf460531825a321edb200523d0faa7792c9Romain Guy void finishRender(); 328694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 32965ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk String16 mLatinPrecache; 33065ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk void precacheLatin(SkPaint* paint); 33165ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk 332694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void issueDrawCommand(); 3339777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy void appendMeshQuadNoClip(float x1, float y1, float u1, float v1, 3349777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy float x2, float y2, float u2, float v2, 3359777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy float x3, float y3, float u3, float v3, 3369777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy float x4, float y4, float u4, float v4, CacheTexture* texture); 337d71dd367af604571c7d00ca473184a1b9240eca2Romain Guy void appendMeshQuad(float x1, float y1, float u1, float v1, 338d71dd367af604571c7d00ca473184a1b9240eca2Romain Guy float x2, float y2, float u2, float v2, 339d71dd367af604571c7d00ca473184a1b9240eca2Romain Guy float x3, float y3, float u3, float v3, 3407de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase float x4, float y4, float u4, float v4, CacheTexture* texture); 3419777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy void appendRotatedMeshQuad(float x1, float y1, float u1, float v1, 3429777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy float x2, float y2, float u2, float v2, 3439777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy float x3, float y3, float u3, float v3, 3449777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy float x4, float y4, float u4, float v4, CacheTexture* texture); 345694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 3467de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mSmallCacheWidth; 3477de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mSmallCacheHeight; 348694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 349694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy Vector<CacheTextureLine*> mCacheLines; 35065ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk uint32_t getRemainingCacheCapacity(); 351694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 35209147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy Font* mCurrentFont; 353694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy Vector<Font*> mActiveFonts; 354694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 3557de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture* mCurrentCacheTexture; 3567de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture* mLastCacheTexture; 3577de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture* mCacheTextureSmall; 3587de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture* mCacheTexture128; 3597de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture* mCacheTexture256; 3607de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture* mCacheTexture512; 3617de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 3629b9902ddbb01548f4a0199087b7035e7c10b2ae7Alex Sakhartchouk void checkTextureUpdate(); 363694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy bool mUploadTexture; 364694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 365694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy // Pointer to vertex data to speed up frame to frame work 366694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy float *mTextMeshPtr; 367694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t mCurrentQuadIndex; 368694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t mMaxNumberOfQuads; 369694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 370694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t mIndexBufferID; 371694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 37209147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy const Rect* mClip; 3735b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect* mBounds; 3745b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bool mDrawn; 37509147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy 376694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy bool mInitialized; 37789a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk 378e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy bool mLinearFiltering; 379e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy 38089a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk void computeGaussianWeights(float* weights, int32_t radius); 38189a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk void horizontalBlur(float* weights, int32_t radius, const uint8_t *source, uint8_t *dest, 3821e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy int32_t width, int32_t height); 38389a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk void verticalBlur(float* weights, int32_t radius, const uint8_t *source, uint8_t *dest, 3841e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy int32_t width, int32_t height); 38589a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk void blurImage(uint8_t* image, int32_t width, int32_t height, int32_t radius); 386694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy}; 387694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 388694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy}; // namespace uirenderer 389694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy}; // namespace android 390694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 3915b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif // ANDROID_HWUI_FONT_RENDERER_H 392