FontRenderer.h revision 9a8245629d69d81e0b62e52970feaf9c02580e75
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> 27694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 28694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy#include <GLES2/gl2.h> 29694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 3009147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy#include "Rect.h" 3151769a68a5cb34e9564740c6a854fcb93018789dRomain Guy#include "Properties.h" 3209147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy 33694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guynamespace android { 34694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guynamespace uirenderer { 35694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 36726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 37726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy// Defines 38726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 39726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy 40726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy#if RENDER_TEXT_AS_GLYPHS 41726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy typedef uint16_t glyph_t; 42726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy #define GET_METRICS(paint, glyph) paint->getGlyphMetrics(glyph) 43726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy #define GET_GLYPH(text) nextGlyph((const uint16_t**) &text) 44726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy #define IS_END_OF_STRING(glyph) false 45726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy#else 46726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy typedef SkUnichar glyph_t; 47726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy #define GET_METRICS(paint, glyph) paint->getUnicharMetrics(glyph) 48726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy #define GET_GLYPH(text) SkUTF16_NextUnichar((const uint16_t**) &text) 49726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy #define IS_END_OF_STRING(glyph) glyph < 0 50726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy#endif 51726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy 52726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 53726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy// Declarations 54726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 55726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy 56694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guyclass FontRenderer; 57694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 587de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haaseclass CacheTexture { 597de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haasepublic: 607de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture(){} 617de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture(uint8_t* texture, GLuint textureId, uint16_t width, uint16_t height) : 622a47c14e2a6f152496b43104bc785c488583fd59Chet Haase mTexture(texture), mTextureId(textureId), mWidth(width), mHeight(height), 632a47c14e2a6f152496b43104bc785c488583fd59Chet Haase mLinearFiltering(false) {} 647de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase ~CacheTexture() { 657de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase if (mTexture != NULL) { 667de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase delete[] mTexture; 677de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 687de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase if (mTextureId != 0) { 697de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase glDeleteTextures(1, &mTextureId); 707de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 717de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 727de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 737de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint8_t* mTexture; 747de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase GLuint mTextureId; 757de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint16_t mWidth; 767de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint16_t mHeight; 772a47c14e2a6f152496b43104bc785c488583fd59Chet Haase bool mLinearFiltering; 787de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase}; 797de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 807de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haaseclass CacheTextureLine { 817de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haasepublic: 827de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTextureLine(uint16_t maxWidth, uint16_t maxHeight, uint32_t currentRow, 837de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t currentCol, CacheTexture* cacheTexture): 847de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase mMaxHeight(maxHeight), 857de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase mMaxWidth(maxWidth), 867de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase mCurrentRow(currentRow), 877de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase mCurrentCol(currentCol), 887de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase mDirty(false), 897de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase mCacheTexture(cacheTexture){ 907de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 917de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 927de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase bool fitBitmap(const SkGlyph& glyph, uint32_t *retOriginX, uint32_t *retOriginY); 937de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 947de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint16_t mMaxHeight; 957de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint16_t mMaxWidth; 967de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mCurrentRow; 977de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mCurrentCol; 987de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase bool mDirty; 997de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture *mCacheTexture; 1007de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase}; 1017de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 1027de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haasestruct CachedGlyphInfo { 1037de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // Has the cache been invalidated? 1047de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase bool mIsValid; 1057de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // Location of the cached glyph in the bitmap 1067de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // in case we need to resize the texture or 1077de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // render to bitmap 1087de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mStartX; 1097de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mStartY; 1107de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mBitmapWidth; 1117de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mBitmapHeight; 1127de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // Also cache texture coords for the quad 1137de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase float mBitmapMinU; 1147de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase float mBitmapMinV; 1157de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase float mBitmapMaxU; 1167de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase float mBitmapMaxV; 1177de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // Minimize how much we call freetype 1187de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mGlyphIndex; 1197de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mAdvanceX; 1207de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mAdvanceY; 1217de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // Values below contain a glyph's origin in the bitmap 1227de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase int32_t mBitmapLeft; 1237de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase int32_t mBitmapTop; 1247de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // Auto-kerning 1257de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase SkFixed mLsbDelta; 1267de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase SkFixed mRsbDelta; 1277de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTextureLine* mCachedTextureLine; 1287de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase}; 1297de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 1307de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 131726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 132726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy// Font 133726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 134726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy 13551769a68a5cb34e9564740c6a854fcb93018789dRomain Guy/** 13651769a68a5cb34e9564740c6a854fcb93018789dRomain Guy * Represents a font, defined by a Skia font id and a font size. A font is used 13751769a68a5cb34e9564740c6a854fcb93018789dRomain Guy * to generate glyphs and cache them in the FontState. 13851769a68a5cb34e9564740c6a854fcb93018789dRomain Guy */ 139694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guyclass Font { 140694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guypublic: 141325a0f969c1d803d7e39a9caee8cc3d400350659Romain Guy enum Style { 142c7b25be64f679e78dfa79080b44be18c9974004cRomain Guy kFakeBold = 1 143325a0f969c1d803d7e39a9caee8cc3d400350659Romain Guy }; 144325a0f969c1d803d7e39a9caee8cc3d400350659Romain Guy 145694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy ~Font(); 146694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 14751769a68a5cb34e9564740c6a854fcb93018789dRomain Guy /** 14851769a68a5cb34e9564740c6a854fcb93018789dRomain Guy * Renders the specified string of text. 149f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk * If bitmap is specified, it will be used as the render target 15051769a68a5cb34e9564740c6a854fcb93018789dRomain Guy */ 151726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy void render(SkPaint* paint, const char *text, uint32_t start, uint32_t len, 152726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy int numGlyphs, int x, int y, uint8_t *bitmap = NULL, 153726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy uint32_t bitmapW = 0, uint32_t bitmapH = 0); 15451769a68a5cb34e9564740c6a854fcb93018789dRomain Guy /** 15551769a68a5cb34e9564740c6a854fcb93018789dRomain Guy * Creates a new font associated with the specified font state. 15651769a68a5cb34e9564740c6a854fcb93018789dRomain Guy */ 1572577db1ec135a1470a2c42139772ec97a6c30e78Romain Guy static Font* create(FontRenderer* state, uint32_t fontId, float fontSize, 158bd496bc3d481f9cfc39007d22372d3a1a8809f96Romain Guy int flags, uint32_t italicStyle, uint32_t scaleX, SkPaint::Style style, 159bd496bc3d481f9cfc39007d22372d3a1a8809f96Romain Guy uint32_t strokeWidth); 160694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 161694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guyprotected: 162694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy friend class FontRenderer; 163694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 164f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk enum RenderMode { 165f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk FRAMEBUFFER, 166f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk BITMAP, 167f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk MEASURE, 168f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk }; 169f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk 170726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy void render(SkPaint* paint, const char *text, uint32_t start, uint32_t len, 171726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy int numGlyphs, int x, int y, RenderMode mode, uint8_t *bitmap, 172726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy uint32_t bitmapW, uint32_t bitmapH, Rect *bounds); 173f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk 174726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy void measure(SkPaint* paint, const char* text, uint32_t start, uint32_t len, 175726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy int numGlyphs, Rect *bounds); 176f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk 1778668f8a633d9299091556c3b2e5ae07be8dce360Chet Haase Font(FontRenderer* state, uint32_t fontId, float fontSize, int flags, uint32_t italicStyle, 178bd496bc3d481f9cfc39007d22372d3a1a8809f96Romain Guy uint32_t scaleX, SkPaint::Style style, uint32_t strokeWidth); 179694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 180726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy // Cache of glyphs 181726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy DefaultKeyedVector<glyph_t, CachedGlyphInfo*> mCachedGlyphs; 182694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 1839a8245629d69d81e0b62e52970feaf9c02580e75Chet Haase void invalidateTextureCache(CacheTextureLine *cacheLine = NULL); 184bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy 185726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy CachedGlyphInfo* cacheGlyph(SkPaint* paint, glyph_t glyph); 186694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void updateGlyphCache(SkPaint* paint, const SkGlyph& skiaGlyph, CachedGlyphInfo *glyph); 187f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk void measureCachedGlyph(CachedGlyphInfo *glyph, int x, int y, Rect *bounds); 188694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void drawCachedGlyph(CachedGlyphInfo *glyph, int x, int y); 18989a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk void drawCachedGlyph(CachedGlyphInfo *glyph, int x, int y, 190726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy uint8_t *bitmap, uint32_t bitmapW, uint32_t bitmapH); 191bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy 192726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy CachedGlyphInfo* getCachedGlyph(SkPaint* paint, glyph_t textUnit); 193726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy 194726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy static glyph_t nextGlyph(const uint16_t** srcPtr) { 195726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy const uint16_t* src = *srcPtr; 196726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy glyph_t g = *src++; 197726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy *srcPtr = src; 198726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy return g; 199726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy } 20065ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk 201bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy FontRenderer* mState; 202bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy uint32_t mFontId; 203bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy float mFontSize; 204325a0f969c1d803d7e39a9caee8cc3d400350659Romain Guy int mFlags; 2052577db1ec135a1470a2c42139772ec97a6c30e78Romain Guy uint32_t mItalicStyle; 2068668f8a633d9299091556c3b2e5ae07be8dce360Chet Haase uint32_t mScaleX; 207bd496bc3d481f9cfc39007d22372d3a1a8809f96Romain Guy SkPaint::Style mStyle; 208bd496bc3d481f9cfc39007d22372d3a1a8809f96Romain Guy uint32_t mStrokeWidth; 209694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy}; 210694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 211726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 212726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy// Renderer 213726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 214726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy 215694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guyclass FontRenderer { 216694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guypublic: 217694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy FontRenderer(); 218694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy ~FontRenderer(); 219694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 220694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void init(); 221694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void deinit(); 2229a8245629d69d81e0b62e52970feaf9c02580e75Chet Haase void flushLargeCaches(); 223694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 224b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy void setGammaTable(const uint8_t* gammaTable) { 225b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy mGammaTable = gammaTable; 226b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy } 227b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy 22865ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk void setFont(SkPaint* paint, uint32_t fontId, float fontSize); 2295b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bool renderText(SkPaint* paint, const Rect* clip, const char *text, uint32_t startIndex, 2305b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy uint32_t len, int numGlyphs, int x, int y, Rect* bounds); 231694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 232f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk struct DropShadow { 2331e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy DropShadow() { }; 2341e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 2351e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy DropShadow(const DropShadow& dropShadow): 2361e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy width(dropShadow.width), height(dropShadow.height), 2371e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy image(dropShadow.image), penX(dropShadow.penX), 2381e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy penY(dropShadow.penY) { 2391e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy } 2401e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 241f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk uint32_t width; 242f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk uint32_t height; 243f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk uint8_t* image; 244f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk int32_t penX; 245f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk int32_t penY; 246f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk }; 247f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk 248f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk // After renderDropShadow returns, the called owns the memory in DropShadow.image 249f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk // and is responsible for releasing it when it's done with it 250f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk DropShadow renderDropShadow(SkPaint* paint, const char *text, uint32_t startIndex, 2511e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy uint32_t len, int numGlyphs, uint32_t radius); 252f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk 253e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy GLuint getTexture(bool linearFiltering = false) { 254694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy checkInit(); 2552a47c14e2a6f152496b43104bc785c488583fd59Chet Haase if (linearFiltering != mCurrentCacheTexture->mLinearFiltering) { 2562a47c14e2a6f152496b43104bc785c488583fd59Chet Haase mCurrentCacheTexture->mLinearFiltering = linearFiltering; 257e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy mLinearFiltering = linearFiltering; 258e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy const GLenum filtering = linearFiltering ? GL_LINEAR : GL_NEAREST; 259e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy 2607de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase glBindTexture(GL_TEXTURE_2D, mCurrentCacheTexture->mTextureId); 261e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filtering); 262e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filtering); 263e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy } 2647de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase return mCurrentCacheTexture->mTextureId; 265c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy } 266c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy 2677de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t getCacheSize() const { 2687de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t size = 0; 2697de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase if (mCacheTextureSmall != NULL && mCacheTextureSmall->mTexture != NULL) { 2707de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase size += mCacheTextureSmall->mWidth * mCacheTextureSmall->mHeight; 2717de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 2727de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase if (mCacheTexture128 != NULL && mCacheTexture128->mTexture != NULL) { 2737de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase size += mCacheTexture128->mWidth * mCacheTexture128->mHeight; 2747de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 2757de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase if (mCacheTexture256 != NULL && mCacheTexture256->mTexture != NULL) { 2767de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase size += mCacheTexture256->mWidth * mCacheTexture256->mHeight; 2777de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 2787de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase if (mCacheTexture512 != NULL && mCacheTexture512->mTexture != NULL) { 2797de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase size += mCacheTexture512->mWidth * mCacheTexture512->mHeight; 2807de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 2817de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase return size; 282c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy } 283c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy 284694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guyprotected: 285694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy friend class Font; 286694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 287b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy const uint8_t* mGammaTable; 288b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy 2892a47c14e2a6f152496b43104bc785c488583fd59Chet Haase void allocateTextureMemory(CacheTexture* cacheTexture); 2909a8245629d69d81e0b62e52970feaf9c02580e75Chet Haase void deallocateTextureMemory(CacheTexture* cacheTexture); 2917de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase void initTextTexture(); 2927de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture *createCacheTexture(int width, int height, bool allocate); 2937de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase void cacheBitmap(const SkGlyph& glyph, CachedGlyphInfo* cachedGlyph, 2947de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t *retOriginX, uint32_t *retOriginY); 295694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 296694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void flushAllAndInvalidate(); 297694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void initVertexArrayBuffers(); 298694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 299694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void checkInit(); 300694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 30165ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk String16 mLatinPrecache; 30265ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk void precacheLatin(SkPaint* paint); 30365ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk 304694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void issueDrawCommand(); 305d71dd367af604571c7d00ca473184a1b9240eca2Romain Guy void appendMeshQuad(float x1, float y1, float u1, float v1, 306d71dd367af604571c7d00ca473184a1b9240eca2Romain Guy float x2, float y2, float u2, float v2, 307d71dd367af604571c7d00ca473184a1b9240eca2Romain Guy float x3, float y3, float u3, float v3, 3087de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase float x4, float y4, float u4, float v4, CacheTexture* texture); 309694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 3107de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mSmallCacheWidth; 3117de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mSmallCacheHeight; 312694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 313694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy Vector<CacheTextureLine*> mCacheLines; 31465ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk uint32_t getRemainingCacheCapacity(); 315694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 31609147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy Font* mCurrentFont; 317694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy Vector<Font*> mActiveFonts; 318694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 3197de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture* mCurrentCacheTexture; 3207de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture* mLastCacheTexture; 3217de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture* mCacheTextureSmall; 3227de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture* mCacheTexture128; 3237de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture* mCacheTexture256; 3247de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture* mCacheTexture512; 3257de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 3269b9902ddbb01548f4a0199087b7035e7c10b2ae7Alex Sakhartchouk void checkTextureUpdate(); 327694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy bool mUploadTexture; 328694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 329694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy // Pointer to vertex data to speed up frame to frame work 330694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy float *mTextMeshPtr; 331694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t mCurrentQuadIndex; 332694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t mMaxNumberOfQuads; 333694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 334694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t mIndexBufferID; 335694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 33609147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy const Rect* mClip; 3375b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect* mBounds; 3385b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bool mDrawn; 33909147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy 340694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy bool mInitialized; 34189a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk 342e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy bool mLinearFiltering; 343e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy 34489a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk void computeGaussianWeights(float* weights, int32_t radius); 34589a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk void horizontalBlur(float* weights, int32_t radius, const uint8_t *source, uint8_t *dest, 3461e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy int32_t width, int32_t height); 34789a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk void verticalBlur(float* weights, int32_t radius, const uint8_t *source, uint8_t *dest, 3481e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy int32_t width, int32_t height); 34989a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk void blurImage(uint8_t* image, int32_t width, int32_t height, int32_t radius); 350694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy}; 351694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 352694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy}; // namespace uirenderer 353694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy}; // namespace android 354694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 3555b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif // ANDROID_HWUI_FONT_RENDERER_H 356