FontRenderer.h revision 416a847633680d94efb926837efdc18726d54918
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; 44ae91c4cbc79ea910753be65e2f1d7899abcb4da2Romain Guy #define TO_GLYPH(g) g 45726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy #define GET_METRICS(paint, glyph) paint->getGlyphMetrics(glyph) 46726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy #define GET_GLYPH(text) nextGlyph((const uint16_t**) &text) 47726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy #define IS_END_OF_STRING(glyph) false 48726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy#else 49726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy typedef SkUnichar glyph_t; 50ae91c4cbc79ea910753be65e2f1d7899abcb4da2Romain Guy #define TO_GLYPH(g) ((SkUnichar) g) 51726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy #define GET_METRICS(paint, glyph) paint->getUnicharMetrics(glyph) 52726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy #define GET_GLYPH(text) SkUTF16_NextUnichar((const uint16_t**) &text) 53726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy #define IS_END_OF_STRING(glyph) glyph < 0 54726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy#endif 55726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy 56726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 57726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy// Declarations 58726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 59726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy 60694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guyclass FontRenderer; 61694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 627de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haaseclass CacheTexture { 637de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haasepublic: 649d9758ae30a59dcf594e0d26ba5d4ee153a3e44aRomain Guy CacheTexture() { } 6599a6ddd4cd8762654a575eb4ac3d0e5431d919b8Romain Guy CacheTexture(uint8_t* texture, uint16_t width, uint16_t height) : 6699a6ddd4cd8762654a575eb4ac3d0e5431d919b8Romain Guy mTexture(texture), mTextureId(0), mWidth(width), mHeight(height), 679d9758ae30a59dcf594e0d26ba5d4ee153a3e44aRomain Guy mLinearFiltering(false) { } 687de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase ~CacheTexture() { 699d9758ae30a59dcf594e0d26ba5d4ee153a3e44aRomain Guy if (mTexture) { 707de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase delete[] mTexture; 717de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 729d9758ae30a59dcf594e0d26ba5d4ee153a3e44aRomain Guy if (mTextureId) { 737de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase glDeleteTextures(1, &mTextureId); 747de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 757de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 767de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 777de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint8_t* mTexture; 787de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase GLuint mTextureId; 797de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint16_t mWidth; 807de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint16_t mHeight; 812a47c14e2a6f152496b43104bc785c488583fd59Chet Haase bool mLinearFiltering; 827de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase}; 837de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 847de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haaseclass CacheTextureLine { 857de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haasepublic: 867de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTextureLine(uint16_t maxWidth, uint16_t maxHeight, uint32_t currentRow, 877de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t currentCol, CacheTexture* cacheTexture): 887de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase mMaxHeight(maxHeight), 897de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase mMaxWidth(maxWidth), 907de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase mCurrentRow(currentRow), 917de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase mCurrentCol(currentCol), 927de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase mDirty(false), 939d9758ae30a59dcf594e0d26ba5d4ee153a3e44aRomain Guy mCacheTexture(cacheTexture) { 947de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 957de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 967de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase bool fitBitmap(const SkGlyph& glyph, uint32_t *retOriginX, uint32_t *retOriginY); 977de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 987de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint16_t mMaxHeight; 997de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint16_t mMaxWidth; 1007de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mCurrentRow; 1017de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mCurrentCol; 1027de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase bool mDirty; 103ae91c4cbc79ea910753be65e2f1d7899abcb4da2Romain Guy CacheTexture* mCacheTexture; 1047de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase}; 1057de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 1067de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haasestruct CachedGlyphInfo { 1077de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // Has the cache been invalidated? 1087de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase bool mIsValid; 1097de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // Location of the cached glyph in the bitmap 1107de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // in case we need to resize the texture or 1117de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // render to bitmap 1127de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mStartX; 1137de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mStartY; 1147de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mBitmapWidth; 1157de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mBitmapHeight; 1167de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // Also cache texture coords for the quad 1177de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase float mBitmapMinU; 1187de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase float mBitmapMinV; 1197de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase float mBitmapMaxU; 1207de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase float mBitmapMaxV; 1217de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // Minimize how much we call freetype 1227de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mGlyphIndex; 1237de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mAdvanceX; 1247de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mAdvanceY; 1257de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // Values below contain a glyph's origin in the bitmap 1267de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase int32_t mBitmapLeft; 1277de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase int32_t mBitmapTop; 1287de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // Auto-kerning 1297de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase SkFixed mLsbDelta; 1307de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase SkFixed mRsbDelta; 1317de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTextureLine* mCachedTextureLine; 1327de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase}; 1337de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 1347de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 135726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 136726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy// Font 137726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 138726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy 13951769a68a5cb34e9564740c6a854fcb93018789dRomain Guy/** 14051769a68a5cb34e9564740c6a854fcb93018789dRomain Guy * Represents a font, defined by a Skia font id and a font size. A font is used 14151769a68a5cb34e9564740c6a854fcb93018789dRomain Guy * to generate glyphs and cache them in the FontState. 14251769a68a5cb34e9564740c6a854fcb93018789dRomain Guy */ 143694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guyclass Font { 144694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guypublic: 145325a0f969c1d803d7e39a9caee8cc3d400350659Romain Guy enum Style { 146c7b25be64f679e78dfa79080b44be18c9974004cRomain Guy kFakeBold = 1 147325a0f969c1d803d7e39a9caee8cc3d400350659Romain Guy }; 148325a0f969c1d803d7e39a9caee8cc3d400350659Romain Guy 149694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy ~Font(); 150694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 15151769a68a5cb34e9564740c6a854fcb93018789dRomain Guy /** 15251769a68a5cb34e9564740c6a854fcb93018789dRomain Guy * Renders the specified string of text. 153f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk * If bitmap is specified, it will be used as the render target 15451769a68a5cb34e9564740c6a854fcb93018789dRomain Guy */ 155726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy void render(SkPaint* paint, const char *text, uint32_t start, uint32_t len, 156726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy int numGlyphs, int x, int y, uint8_t *bitmap = NULL, 157726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy uint32_t bitmapW = 0, uint32_t bitmapH = 0); 158671d6cf460531825a321edb200523d0faa7792c9Romain Guy 159671d6cf460531825a321edb200523d0faa7792c9Romain Guy void render(SkPaint* paint, const char *text, uint32_t start, uint32_t len, 160671d6cf460531825a321edb200523d0faa7792c9Romain Guy int numGlyphs, int x, int y, const float* positions); 161671d6cf460531825a321edb200523d0faa7792c9Romain Guy 1629777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy void render(SkPaint* paint, const char *text, uint32_t start, uint32_t len, 1639777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy int numGlyphs, SkPath* path, float hOffset, float vOffset); 1649777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy 16551769a68a5cb34e9564740c6a854fcb93018789dRomain Guy /** 16651769a68a5cb34e9564740c6a854fcb93018789dRomain Guy * Creates a new font associated with the specified font state. 16751769a68a5cb34e9564740c6a854fcb93018789dRomain Guy */ 1682577db1ec135a1470a2c42139772ec97a6c30e78Romain Guy static Font* create(FontRenderer* state, uint32_t fontId, float fontSize, 169bd496bc3d481f9cfc39007d22372d3a1a8809f96Romain Guy int flags, uint32_t italicStyle, uint32_t scaleX, SkPaint::Style style, 170bd496bc3d481f9cfc39007d22372d3a1a8809f96Romain Guy uint32_t strokeWidth); 171694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 172694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guyprotected: 173694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy friend class FontRenderer; 174671d6cf460531825a321edb200523d0faa7792c9Romain Guy typedef void (Font::*RenderGlyph)(CachedGlyphInfo*, int, int, uint8_t*, 175671d6cf460531825a321edb200523d0faa7792c9Romain Guy uint32_t, uint32_t, Rect*, const float*); 176694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 177f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk enum RenderMode { 178f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk FRAMEBUFFER, 179f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk BITMAP, 180f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk MEASURE, 181f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk }; 182f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk 183726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy void render(SkPaint* paint, const char *text, uint32_t start, uint32_t len, 184726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy int numGlyphs, int x, int y, RenderMode mode, uint8_t *bitmap, 185671d6cf460531825a321edb200523d0faa7792c9Romain Guy uint32_t bitmapW, uint32_t bitmapH, Rect *bounds, const float* positions); 186f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk 187726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy void measure(SkPaint* paint, const char* text, uint32_t start, uint32_t len, 188416a847633680d94efb926837efdc18726d54918Raph Levien int numGlyphs, Rect *bounds, const float* positions); 189f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk 1908668f8a633d9299091556c3b2e5ae07be8dce360Chet Haase Font(FontRenderer* state, uint32_t fontId, float fontSize, int flags, uint32_t italicStyle, 191bd496bc3d481f9cfc39007d22372d3a1a8809f96Romain Guy uint32_t scaleX, SkPaint::Style style, uint32_t strokeWidth); 192694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 193726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy // Cache of glyphs 194726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy DefaultKeyedVector<glyph_t, CachedGlyphInfo*> mCachedGlyphs; 195694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 1969a8245629d69d81e0b62e52970feaf9c02580e75Chet Haase void invalidateTextureCache(CacheTextureLine *cacheLine = NULL); 197bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy 198726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy CachedGlyphInfo* cacheGlyph(SkPaint* paint, glyph_t glyph); 199671d6cf460531825a321edb200523d0faa7792c9Romain Guy void updateGlyphCache(SkPaint* paint, const SkGlyph& skiaGlyph, CachedGlyphInfo* glyph); 200671d6cf460531825a321edb200523d0faa7792c9Romain Guy 201671d6cf460531825a321edb200523d0faa7792c9Romain Guy void measureCachedGlyph(CachedGlyphInfo* glyph, int x, int y, 202671d6cf460531825a321edb200523d0faa7792c9Romain Guy uint8_t *bitmap, uint32_t bitmapW, uint32_t bitmapH, 203671d6cf460531825a321edb200523d0faa7792c9Romain Guy Rect* bounds, const float* pos); 204671d6cf460531825a321edb200523d0faa7792c9Romain Guy void drawCachedGlyph(CachedGlyphInfo* glyph, int x, int y, 205671d6cf460531825a321edb200523d0faa7792c9Romain Guy uint8_t *bitmap, uint32_t bitmapW, uint32_t bitmapH, 206671d6cf460531825a321edb200523d0faa7792c9Romain Guy Rect* bounds, const float* pos); 207671d6cf460531825a321edb200523d0faa7792c9Romain Guy void drawCachedGlyphBitmap(CachedGlyphInfo* glyph, int x, int y, 208671d6cf460531825a321edb200523d0faa7792c9Romain Guy uint8_t *bitmap, uint32_t bitmapW, uint32_t bitmapH, 209671d6cf460531825a321edb200523d0faa7792c9Romain Guy Rect* bounds, const float* pos); 2109777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy void drawCachedGlyph(CachedGlyphInfo* glyph, float x, float hOffset, float vOffset, 2119777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy SkPathMeasure& measure, SkPoint* position, SkVector* tangent); 212bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy 213726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy CachedGlyphInfo* getCachedGlyph(SkPaint* paint, glyph_t textUnit); 214726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy 215726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy static glyph_t nextGlyph(const uint16_t** srcPtr) { 216726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy const uint16_t* src = *srcPtr; 217726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy glyph_t g = *src++; 218726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy *srcPtr = src; 219726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy return g; 220726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy } 22165ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk 222bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy FontRenderer* mState; 223bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy uint32_t mFontId; 224bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy float mFontSize; 225325a0f969c1d803d7e39a9caee8cc3d400350659Romain Guy int mFlags; 2262577db1ec135a1470a2c42139772ec97a6c30e78Romain Guy uint32_t mItalicStyle; 2278668f8a633d9299091556c3b2e5ae07be8dce360Chet Haase uint32_t mScaleX; 228bd496bc3d481f9cfc39007d22372d3a1a8809f96Romain Guy SkPaint::Style mStyle; 229bd496bc3d481f9cfc39007d22372d3a1a8809f96Romain Guy uint32_t mStrokeWidth; 230694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy}; 231694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 232726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 233726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy// Renderer 234726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 235726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy 236694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guyclass FontRenderer { 237694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guypublic: 238694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy FontRenderer(); 239694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy ~FontRenderer(); 240694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 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, 277416a847633680d94efb926837efdc18726d54918Raph Levien uint32_t len, int numGlyphs, uint32_t radius, const float* positions); 278f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk 279e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy GLuint getTexture(bool linearFiltering = false) { 280694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy checkInit(); 281ae91c4cbc79ea910753be65e2f1d7899abcb4da2Romain Guy 2822a47c14e2a6f152496b43104bc785c488583fd59Chet Haase if (linearFiltering != mCurrentCacheTexture->mLinearFiltering) { 2832a47c14e2a6f152496b43104bc785c488583fd59Chet Haase mCurrentCacheTexture->mLinearFiltering = linearFiltering; 284e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy mLinearFiltering = linearFiltering; 285e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy const GLenum filtering = linearFiltering ? GL_LINEAR : GL_NEAREST; 286e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy 2877de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase glBindTexture(GL_TEXTURE_2D, mCurrentCacheTexture->mTextureId); 288e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filtering); 289e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filtering); 290e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy } 291ae91c4cbc79ea910753be65e2f1d7899abcb4da2Romain Guy 2927de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase return mCurrentCacheTexture->mTextureId; 293c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy } 294c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy 2957de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t getCacheSize() const { 2967de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t size = 0; 2977de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase if (mCacheTextureSmall != NULL && mCacheTextureSmall->mTexture != NULL) { 2987de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase size += mCacheTextureSmall->mWidth * mCacheTextureSmall->mHeight; 2997de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 3007de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase if (mCacheTexture128 != NULL && mCacheTexture128->mTexture != NULL) { 3017de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase size += mCacheTexture128->mWidth * mCacheTexture128->mHeight; 3027de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 3037de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase if (mCacheTexture256 != NULL && mCacheTexture256->mTexture != NULL) { 3047de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase size += mCacheTexture256->mWidth * mCacheTexture256->mHeight; 3057de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 3067de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase if (mCacheTexture512 != NULL && mCacheTexture512->mTexture != NULL) { 3077de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase size += mCacheTexture512->mWidth * mCacheTexture512->mHeight; 3087de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 3097de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase return size; 310c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy } 311c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy 312694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guyprotected: 313694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy friend class Font; 314694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 315b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy const uint8_t* mGammaTable; 316b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy 3172a47c14e2a6f152496b43104bc785c488583fd59Chet Haase void allocateTextureMemory(CacheTexture* cacheTexture); 3189a8245629d69d81e0b62e52970feaf9c02580e75Chet Haase void deallocateTextureMemory(CacheTexture* cacheTexture); 3197de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase void initTextTexture(); 3209777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy CacheTexture* createCacheTexture(int width, int height, bool allocate); 3217de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase void cacheBitmap(const SkGlyph& glyph, CachedGlyphInfo* cachedGlyph, 3227de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t *retOriginX, uint32_t *retOriginY); 323694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 324694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void flushAllAndInvalidate(); 325694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void initVertexArrayBuffers(); 326694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 327694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void checkInit(); 328671d6cf460531825a321edb200523d0faa7792c9Romain Guy void initRender(const Rect* clip, Rect* bounds); 329671d6cf460531825a321edb200523d0faa7792c9Romain Guy void finishRender(); 330694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 33165ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk void precacheLatin(SkPaint* paint); 33265ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk 333694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void issueDrawCommand(); 3349777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy void appendMeshQuadNoClip(float x1, float y1, float u1, float v1, 3359777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy float x2, float y2, float u2, float v2, 3369777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy float x3, float y3, float u3, float v3, 3379777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy float x4, float y4, float u4, float v4, CacheTexture* texture); 338d71dd367af604571c7d00ca473184a1b9240eca2Romain Guy void appendMeshQuad(float x1, float y1, float u1, float v1, 339d71dd367af604571c7d00ca473184a1b9240eca2Romain Guy float x2, float y2, float u2, float v2, 340d71dd367af604571c7d00ca473184a1b9240eca2Romain Guy float x3, float y3, float u3, float v3, 3417de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase float x4, float y4, float u4, float v4, CacheTexture* texture); 3429777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy void appendRotatedMeshQuad(float x1, float y1, float u1, float v1, 3439777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy float x2, float y2, float u2, float v2, 3449777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy float x3, float y3, float u3, float v3, 3459777173eb6c9eb97c7921c8288ebc65e3ab3ce6fRomain Guy float x4, float y4, float u4, float v4, CacheTexture* texture); 346694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 3477de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mSmallCacheWidth; 3487de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mSmallCacheHeight; 349694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 350694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy Vector<CacheTextureLine*> mCacheLines; 35165ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk uint32_t getRemainingCacheCapacity(); 352694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 35309147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy Font* mCurrentFont; 354694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy Vector<Font*> mActiveFonts; 355694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 3567de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture* mCurrentCacheTexture; 3577de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture* mLastCacheTexture; 3587de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture* mCacheTextureSmall; 3597de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture* mCacheTexture128; 3607de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture* mCacheTexture256; 3617de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture* mCacheTexture512; 3627de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 3639b9902ddbb01548f4a0199087b7035e7c10b2ae7Alex Sakhartchouk void checkTextureUpdate(); 364694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy bool mUploadTexture; 365694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 366694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy // Pointer to vertex data to speed up frame to frame work 367694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy float *mTextMeshPtr; 368694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t mCurrentQuadIndex; 369694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t mMaxNumberOfQuads; 370694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 371694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t mIndexBufferID; 372694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 37309147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy const Rect* mClip; 3745b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect* mBounds; 3755b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bool mDrawn; 37609147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy 377694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy bool mInitialized; 37889a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk 379e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy bool mLinearFiltering; 380e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy 38189a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk void computeGaussianWeights(float* weights, int32_t radius); 38289a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk void horizontalBlur(float* weights, int32_t radius, const uint8_t *source, uint8_t *dest, 3831e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy int32_t width, int32_t height); 38489a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk void verticalBlur(float* weights, int32_t radius, const uint8_t *source, uint8_t *dest, 3851e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy int32_t width, int32_t height); 38689a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk void blurImage(uint8_t* image, int32_t width, int32_t height, int32_t radius); 387694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy}; 388694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 389694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy}; // namespace uirenderer 390694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy}; // namespace android 391694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 3925b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif // ANDROID_HWUI_FONT_RENDERER_H 393