FontRenderer.h revision 7de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86
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) : 627de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase mTexture(texture), mTextureId(textureId), mWidth(width), mHeight(height) {} 637de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase ~CacheTexture() { 647de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase if (mTexture != NULL) { 657de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase delete[] mTexture; 667de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 677de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase if (mTextureId != 0) { 687de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase glDeleteTextures(1, &mTextureId); 697de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 707de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 717de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 727de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint8_t* mTexture; 737de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase GLuint mTextureId; 747de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint16_t mWidth; 757de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint16_t mHeight; 767de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase}; 777de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 787de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haaseclass CacheTextureLine { 797de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haasepublic: 807de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTextureLine(uint16_t maxWidth, uint16_t maxHeight, uint32_t currentRow, 817de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t currentCol, CacheTexture* cacheTexture): 827de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase mMaxHeight(maxHeight), 837de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase mMaxWidth(maxWidth), 847de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase mCurrentRow(currentRow), 857de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase mCurrentCol(currentCol), 867de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase mDirty(false), 877de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase mCacheTexture(cacheTexture){ 887de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 897de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 907de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase bool fitBitmap(const SkGlyph& glyph, uint32_t *retOriginX, uint32_t *retOriginY); 917de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 927de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint16_t mMaxHeight; 937de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint16_t mMaxWidth; 947de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mCurrentRow; 957de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mCurrentCol; 967de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase bool mDirty; 977de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture *mCacheTexture; 987de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase}; 997de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 1007de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haasestruct CachedGlyphInfo { 1017de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // Has the cache been invalidated? 1027de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase bool mIsValid; 1037de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // Location of the cached glyph in the bitmap 1047de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // in case we need to resize the texture or 1057de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // render to bitmap 1067de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mStartX; 1077de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mStartY; 1087de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mBitmapWidth; 1097de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mBitmapHeight; 1107de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // Also cache texture coords for the quad 1117de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase float mBitmapMinU; 1127de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase float mBitmapMinV; 1137de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase float mBitmapMaxU; 1147de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase float mBitmapMaxV; 1157de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // Minimize how much we call freetype 1167de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mGlyphIndex; 1177de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mAdvanceX; 1187de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mAdvanceY; 1197de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // Values below contain a glyph's origin in the bitmap 1207de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase int32_t mBitmapLeft; 1217de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase int32_t mBitmapTop; 1227de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase // Auto-kerning 1237de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase SkFixed mLsbDelta; 1247de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase SkFixed mRsbDelta; 1257de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTextureLine* mCachedTextureLine; 1267de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase}; 1277de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 1287de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 129726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 130726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy// Font 131726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 132726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy 13351769a68a5cb34e9564740c6a854fcb93018789dRomain Guy/** 13451769a68a5cb34e9564740c6a854fcb93018789dRomain Guy * Represents a font, defined by a Skia font id and a font size. A font is used 13551769a68a5cb34e9564740c6a854fcb93018789dRomain Guy * to generate glyphs and cache them in the FontState. 13651769a68a5cb34e9564740c6a854fcb93018789dRomain Guy */ 137694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guyclass Font { 138694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guypublic: 139325a0f969c1d803d7e39a9caee8cc3d400350659Romain Guy enum Style { 140c7b25be64f679e78dfa79080b44be18c9974004cRomain Guy kFakeBold = 1 141325a0f969c1d803d7e39a9caee8cc3d400350659Romain Guy }; 142325a0f969c1d803d7e39a9caee8cc3d400350659Romain Guy 143694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy ~Font(); 144694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 14551769a68a5cb34e9564740c6a854fcb93018789dRomain Guy /** 14651769a68a5cb34e9564740c6a854fcb93018789dRomain Guy * Renders the specified string of text. 147f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk * If bitmap is specified, it will be used as the render target 14851769a68a5cb34e9564740c6a854fcb93018789dRomain Guy */ 149726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy void render(SkPaint* paint, const char *text, uint32_t start, uint32_t len, 150726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy int numGlyphs, int x, int y, uint8_t *bitmap = NULL, 151726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy uint32_t bitmapW = 0, uint32_t bitmapH = 0); 15251769a68a5cb34e9564740c6a854fcb93018789dRomain Guy /** 15351769a68a5cb34e9564740c6a854fcb93018789dRomain Guy * Creates a new font associated with the specified font state. 15451769a68a5cb34e9564740c6a854fcb93018789dRomain Guy */ 1552577db1ec135a1470a2c42139772ec97a6c30e78Romain Guy static Font* create(FontRenderer* state, uint32_t fontId, float fontSize, 156bd496bc3d481f9cfc39007d22372d3a1a8809f96Romain Guy int flags, uint32_t italicStyle, uint32_t scaleX, SkPaint::Style style, 157bd496bc3d481f9cfc39007d22372d3a1a8809f96Romain Guy uint32_t strokeWidth); 158694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 159694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guyprotected: 160694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy friend class FontRenderer; 161694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 162f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk enum RenderMode { 163f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk FRAMEBUFFER, 164f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk BITMAP, 165f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk MEASURE, 166f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk }; 167f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk 168726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy void render(SkPaint* paint, const char *text, uint32_t start, uint32_t len, 169726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy int numGlyphs, int x, int y, RenderMode mode, uint8_t *bitmap, 170726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy uint32_t bitmapW, uint32_t bitmapH, Rect *bounds); 171f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk 172726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy void measure(SkPaint* paint, const char* text, uint32_t start, uint32_t len, 173726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy int numGlyphs, Rect *bounds); 174f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk 1758668f8a633d9299091556c3b2e5ae07be8dce360Chet Haase Font(FontRenderer* state, uint32_t fontId, float fontSize, int flags, uint32_t italicStyle, 176bd496bc3d481f9cfc39007d22372d3a1a8809f96Romain Guy uint32_t scaleX, SkPaint::Style style, uint32_t strokeWidth); 177694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 178726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy // Cache of glyphs 179726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy DefaultKeyedVector<glyph_t, CachedGlyphInfo*> mCachedGlyphs; 180694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 181bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy void invalidateTextureCache(); 182bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy 183726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy CachedGlyphInfo* cacheGlyph(SkPaint* paint, glyph_t glyph); 184694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void updateGlyphCache(SkPaint* paint, const SkGlyph& skiaGlyph, CachedGlyphInfo *glyph); 185f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk void measureCachedGlyph(CachedGlyphInfo *glyph, int x, int y, Rect *bounds); 186694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void drawCachedGlyph(CachedGlyphInfo *glyph, int x, int y); 18789a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk void drawCachedGlyph(CachedGlyphInfo *glyph, int x, int y, 188726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy uint8_t *bitmap, uint32_t bitmapW, uint32_t bitmapH); 189bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy 190726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy CachedGlyphInfo* getCachedGlyph(SkPaint* paint, glyph_t textUnit); 191726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy 192726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy static glyph_t nextGlyph(const uint16_t** srcPtr) { 193726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy const uint16_t* src = *srcPtr; 194726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy glyph_t g = *src++; 195726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy *srcPtr = src; 196726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy return g; 197726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy } 19865ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk 199bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy FontRenderer* mState; 200bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy uint32_t mFontId; 201bd0e6aa0ff0bd8b376772c3e23513a6021bdda87Romain Guy float mFontSize; 202325a0f969c1d803d7e39a9caee8cc3d400350659Romain Guy int mFlags; 2032577db1ec135a1470a2c42139772ec97a6c30e78Romain Guy uint32_t mItalicStyle; 2048668f8a633d9299091556c3b2e5ae07be8dce360Chet Haase uint32_t mScaleX; 205bd496bc3d481f9cfc39007d22372d3a1a8809f96Romain Guy SkPaint::Style mStyle; 206bd496bc3d481f9cfc39007d22372d3a1a8809f96Romain Guy uint32_t mStrokeWidth; 207694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy}; 208694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 209726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 210726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy// Renderer 211726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy/////////////////////////////////////////////////////////////////////////////// 212726aeba80ffc6778a9bc3e0ee957b8d644183505Romain Guy 213694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guyclass FontRenderer { 214694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guypublic: 215694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy FontRenderer(); 216694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy ~FontRenderer(); 217694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 218694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void init(); 219694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void deinit(); 220694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 221b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy void setGammaTable(const uint8_t* gammaTable) { 222b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy mGammaTable = gammaTable; 223b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy } 224b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy 225f3a910b423db7ad79cf61518bdd9278c048ad0d8Romain Guy inline float* getMeshBuffer() { 226f3a910b423db7ad79cf61518bdd9278c048ad0d8Romain Guy checkInit(); 227f3a910b423db7ad79cf61518bdd9278c048ad0d8Romain Guy return mTextMeshPtr; 228f3a910b423db7ad79cf61518bdd9278c048ad0d8Romain Guy } 229f3a910b423db7ad79cf61518bdd9278c048ad0d8Romain Guy 230f3a910b423db7ad79cf61518bdd9278c048ad0d8Romain Guy inline int getMeshTexCoordsOffset() const { 231f3a910b423db7ad79cf61518bdd9278c048ad0d8Romain Guy return 2; 232894df17eee708688c8a6e67941add2017239c790Alex Sakhartchouk } 233894df17eee708688c8a6e67941add2017239c790Alex Sakhartchouk 23465ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk void setFont(SkPaint* paint, uint32_t fontId, float fontSize); 2355b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bool renderText(SkPaint* paint, const Rect* clip, const char *text, uint32_t startIndex, 2365b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy uint32_t len, int numGlyphs, int x, int y, Rect* bounds); 237694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 238f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk struct DropShadow { 2391e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy DropShadow() { }; 2401e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 2411e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy DropShadow(const DropShadow& dropShadow): 2421e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy width(dropShadow.width), height(dropShadow.height), 2431e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy image(dropShadow.image), penX(dropShadow.penX), 2441e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy penY(dropShadow.penY) { 2451e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy } 2461e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy 247f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk uint32_t width; 248f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk uint32_t height; 249f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk uint8_t* image; 250f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk int32_t penX; 251f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk int32_t penY; 252f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk }; 253f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk 254f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk // After renderDropShadow returns, the called owns the memory in DropShadow.image 255f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk // and is responsible for releasing it when it's done with it 256f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk DropShadow renderDropShadow(SkPaint* paint, const char *text, uint32_t startIndex, 2571e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy uint32_t len, int numGlyphs, uint32_t radius); 258f18136cb3c881a9d16c1a4f0f341732c276936bfAlex Sakhartchouk 259e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy GLuint getTexture(bool linearFiltering = false) { 260694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy checkInit(); 261e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy if (linearFiltering != mLinearFiltering) { 262e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy mLinearFiltering = linearFiltering; 263e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy const GLenum filtering = linearFiltering ? GL_LINEAR : GL_NEAREST; 264e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy 2657de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase glBindTexture(GL_TEXTURE_2D, mCurrentCacheTexture->mTextureId); 266e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filtering); 267e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filtering); 268e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy } 2697de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase return mCurrentCacheTexture->mTextureId; 270c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy } 271c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy 2727de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t getCacheSize() const { 2737de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t size = 0; 2747de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase if (mCacheTextureSmall != NULL && mCacheTextureSmall->mTexture != NULL) { 2757de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase size += mCacheTextureSmall->mWidth * mCacheTextureSmall->mHeight; 2767de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 2777de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase if (mCacheTexture128 != NULL && mCacheTexture128->mTexture != NULL) { 2787de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase size += mCacheTexture128->mWidth * mCacheTexture128->mHeight; 2797de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 2807de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase if (mCacheTexture256 != NULL && mCacheTexture256->mTexture != NULL) { 2817de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase size += mCacheTexture256->mWidth * mCacheTexture256->mHeight; 2827de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 2837de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase if (mCacheTexture512 != NULL && mCacheTexture512->mTexture != NULL) { 2847de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase size += mCacheTexture512->mWidth * mCacheTexture512->mHeight; 2857de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase } 2867de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase return size; 287c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy } 288c15008e72ec00ca20a271c3006dac649fd07533bRomain Guy 289694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guyprotected: 290694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy friend class Font; 291694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 292b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy const uint8_t* mGammaTable; 293b45c0c9774bd19a9dbe77d149abae4e124b08bf6Romain Guy 2947de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint8_t* allocateTextureMemory(int width, int height); 2957de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase void initTextTexture(); 2967de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture *createCacheTexture(int width, int height, bool allocate); 2977de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase void cacheBitmap(const SkGlyph& glyph, CachedGlyphInfo* cachedGlyph, 2987de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t *retOriginX, uint32_t *retOriginY); 299694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 300694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void flushAllAndInvalidate(); 301694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void initVertexArrayBuffers(); 302694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 303694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void checkInit(); 304694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 30565ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk String16 mLatinPrecache; 30665ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk void precacheLatin(SkPaint* paint); 30765ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk 308694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy void issueDrawCommand(); 309d71dd367af604571c7d00ca473184a1b9240eca2Romain Guy void appendMeshQuad(float x1, float y1, float u1, float v1, 310d71dd367af604571c7d00ca473184a1b9240eca2Romain Guy float x2, float y2, float u2, float v2, 311d71dd367af604571c7d00ca473184a1b9240eca2Romain Guy float x3, float y3, float u3, float v3, 3127de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase float x4, float y4, float u4, float v4, CacheTexture* texture); 313694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 3147de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mSmallCacheWidth; 3157de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase uint32_t mSmallCacheHeight; 316694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 317694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy Vector<CacheTextureLine*> mCacheLines; 31865ef909776c03417d8b597738da54ca211e37e4fAlex Sakhartchouk uint32_t getRemainingCacheCapacity(); 319694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 32009147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy Font* mCurrentFont; 321694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy Vector<Font*> mActiveFonts; 322694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 3237de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture* mCurrentCacheTexture; 3247de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture* mLastCacheTexture; 3257de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture* mCacheTextureSmall; 3267de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture* mCacheTexture128; 3277de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture* mCacheTexture256; 3287de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase CacheTexture* mCacheTexture512; 3297de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 3307de0cb12d0e5fd64811da0b5d1ae0c0d58b86f86Chet Haase 3319b9902ddbb01548f4a0199087b7035e7c10b2ae7Alex Sakhartchouk void checkTextureUpdate(); 332694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy bool mUploadTexture; 333694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 334694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy // Pointer to vertex data to speed up frame to frame work 335694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy float *mTextMeshPtr; 336694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t mCurrentQuadIndex; 337694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t mMaxNumberOfQuads; 338694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 339694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy uint32_t mIndexBufferID; 340694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 34109147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy const Rect* mClip; 3425b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy Rect* mBounds; 3435b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bool mDrawn; 34409147fbdc8206a0cac78bfe9083e7e15b3c5689cRomain Guy 345694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy bool mInitialized; 34689a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk 347e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy bool mLinearFiltering; 348e8cb9c14309b0f01c0159efdf9a7198f44a62642Romain Guy 34989a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk void computeGaussianWeights(float* weights, int32_t radius); 35089a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk void horizontalBlur(float* weights, int32_t radius, const uint8_t *source, uint8_t *dest, 3511e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy int32_t width, int32_t height); 35289a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk void verticalBlur(float* weights, int32_t radius, const uint8_t *source, uint8_t *dest, 3531e45aae5de003657e5d18f74d34998f5de5db5b7Romain Guy int32_t width, int32_t height); 35489a524ac2d4a36739e51b01b336c0bade77e2ee0Alex Sakhartchouk void blurImage(uint8_t* image, int32_t width, int32_t height, int32_t radius); 355694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy}; 356694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 357694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy}; // namespace uirenderer 358694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy}; // namespace android 359694b519ac647fe998fd396fe0784cc8e179aadc4Romain Guy 3605b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif // ANDROID_HWUI_FONT_RENDERER_H 361