1 /* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_HWUI_FONT_UTIL_H 18 #define ANDROID_HWUI_FONT_UTIL_H 19 20 #include <SkUtils.h> 21 22 #include "Properties.h" 23 24 /////////////////////////////////////////////////////////////////////////////// 25 // Defines 26 /////////////////////////////////////////////////////////////////////////////// 27 28 #define DEFAULT_TEXT_SMALL_CACHE_WIDTH 1024 29 #define DEFAULT_TEXT_SMALL_CACHE_HEIGHT 512 30 #define DEFAULT_TEXT_LARGE_CACHE_WIDTH 2048 31 #define DEFAULT_TEXT_LARGE_CACHE_HEIGHT 512 32 33 #define TEXTURE_BORDER_SIZE 1 34 35 #define CACHE_BLOCK_ROUNDING_SIZE 4 36 37 #if RENDER_TEXT_AS_GLYPHS 38 typedef uint16_t glyph_t; 39 #define TO_GLYPH(g) g 40 #define GET_METRICS(paint, glyph, matrix) paint->getGlyphMetrics(glyph, matrix) 41 #define GET_GLYPH(text) nextGlyph((const uint16_t**) &text) 42 #define IS_END_OF_STRING(glyph) false 43 44 static glyph_t nextGlyph(const uint16_t** srcPtr) { 45 const uint16_t* src = *srcPtr; 46 glyph_t g = *src++; 47 *srcPtr = src; 48 return g; 49 } 50 #else 51 typedef SkUnichar glyph_t; 52 #define TO_GLYPH(g) ((SkUnichar) g) 53 #define GET_METRICS(paint, glyph, matrix) paint->getUnicharMetrics(glyph, matrix) 54 #define GET_GLYPH(text) SkUTF16_NextUnichar((const uint16_t**) &text) 55 #define IS_END_OF_STRING(glyph) glyph < 0 56 #endif 57 58 #define AUTO_KERN(prev, next) (((next) - (prev) + 32) >> 6 << 16) 59 60 #endif // ANDROID_HWUI_FONT_UTIL_H 61
