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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_HWUI_FONT_UTIL_H
#define ANDROID_HWUI_FONT_UTIL_H
#include <SkUtils.h>
#include "Properties.h"
///////////////////////////////////////////////////////////////////////////////
// Defines
///////////////////////////////////////////////////////////////////////////////
#define DEFAULT_TEXT_SMALL_CACHE_WIDTH 1024
#define DEFAULT_TEXT_SMALL_CACHE_HEIGHT 512
#define DEFAULT_TEXT_LARGE_CACHE_WIDTH 2048
#define DEFAULT_TEXT_LARGE_CACHE_HEIGHT 512
#ifdef TEXTURE_BORDER_SIZE
#if TEXTURE_BORDER_SIZE != 1
#error TEXTURE_BORDER_SIZE other than 1 is not currently supported
#endif
#else
#define TEXTURE_BORDER_SIZE 1
#endif
#define CACHE_BLOCK_ROUNDING_SIZE 4
#if RENDER_TEXT_AS_GLYPHS
typedef uint16_t glyph_t;
#define TO_GLYPH(g) g
#define GET_METRICS(cache, glyph) cache->getGlyphIDMetrics(glyph)
#define GET_GLYPH(text) nextGlyph((const uint16_t**) &text)
#define IS_END_OF_STRING(glyph) false
static inline glyph_t nextGlyph(const uint16_t** srcPtr) {
const uint16_t* src = *srcPtr;
glyph_t g = *src++;
*srcPtr = src;
return g;
}
#else
typedef SkUnichar glyph_t;
#define TO_GLYPH(g) ((SkUnichar) g)
#define GET_METRICS(cache, glyph) cache->getUnicharMetrics(glyph)
#define GET_GLYPH(text) SkUTF16_NextUnichar((const uint16_t**) &text)
#define IS_END_OF_STRING(glyph) glyph < 0
#endif
#define AUTO_KERN(prev, next) (((next) - (prev) + 32) >> 6 << 16)
#endif // ANDROID_HWUI_FONT_UTIL_H
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