Layout.cpp revision d231a4b0b1d482c7ae7717b048112e1fe5d0f5a9
19cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien/* 29cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien * Copyright (C) 2013 The Android Open Source Project 39cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien * 49cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien * Licensed under the Apache License, Version 2.0 (the "License"); 59cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien * you may not use this file except in compliance with the License. 69cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien * You may obtain a copy of the License at 79cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien * 89cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien * http://www.apache.org/licenses/LICENSE-2.0 99cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien * 109cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien * Unless required by applicable law or agreed to in writing, software 119cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien * distributed under the License is distributed on an "AS IS" BASIS, 129cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien * See the License for the specific language governing permissions and 149cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien * limitations under the License. 159cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien */ 169cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 17ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien#define LOG_TAG "Minikin" 18ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien#include <cutils/log.h> 19ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien 209cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien#include <string> 219cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien#include <vector> 22d231a4b0b1d482c7ae7717b048112e1fe5d0f5a9Raph Levien#include <algorithm> 239cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien#include <fstream> 249cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien#include <iostream> // for debugging 25bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien#include <stdio.h> // ditto 269cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 27d231a4b0b1d482c7ae7717b048112e1fe5d0f5a9Raph Levien#include <unicode/ubidi.h> 28ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien#include <hb-icu.h> 29ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien 30b80c1f19c58b927820a8a24bf2218e5645724608Raph Levien#include "MinikinInternal.h" 31bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien#include <minikin/MinikinFontFreeType.h> 329cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien#include <minikin/Layout.h> 339cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 349cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levienusing std::string; 359cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levienusing std::vector; 369cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 379cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Leviennamespace android { 389cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 399cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien// TODO: globals are not cool, move to a factory-ish object 409cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levienhb_buffer_t* buffer = 0; 419cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 429cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph LevienBitmap::Bitmap(int width, int height) : width(width), height(height) { 439cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien buf = new uint8_t[width * height](); 449cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien} 459cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 469cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph LevienBitmap::~Bitmap() { 479cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien delete[] buf; 489cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien} 499cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 509cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levienvoid Bitmap::writePnm(std::ofstream &o) const { 519cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien o << "P5" << std::endl; 529cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien o << width << " " << height << std::endl; 539cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien o << "255" << std::endl; 549cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien o.write((const char *)buf, width * height); 559cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien o.close(); 569cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien} 579cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 58bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levienvoid Bitmap::drawGlyph(const GlyphBitmap& bitmap, int x, int y) { 599cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien int bmw = bitmap.width; 60bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien int bmh = bitmap.height; 61bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien x += bitmap.left; 62bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien y -= bitmap.top; 639cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien int x0 = std::max(0, x); 649cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien int x1 = std::min(width, x + bmw); 659cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien int y0 = std::max(0, y); 669cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien int y1 = std::min(height, y + bmh); 679cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien const unsigned char* src = bitmap.buffer + (y0 - y) * bmw + (x0 - x); 689cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien uint8_t* dst = buf + y0 * width; 699cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien for (int yy = y0; yy < y1; yy++) { 709cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien for (int xx = x0; xx < x1; xx++) { 719cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien int pixel = (int)dst[xx] + (int)src[xx - x]; 729cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien pixel = pixel > 0xff ? 0xff : pixel; 739cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien dst[xx] = pixel; 749cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien } 759cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien src += bmw; 769cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien dst += width; 779cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien } 789cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien} 799cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 80ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levienvoid MinikinRect::join(const MinikinRect& r) { 81ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien if (isEmpty()) { 82ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien set(r); 83ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien } else if (!r.isEmpty()) { 84ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien mLeft = std::min(mLeft, r.mLeft); 85ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien mTop = std::min(mTop, r.mTop); 86ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien mRight = std::max(mRight, r.mRight); 87ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien mBottom = std::max(mBottom, r.mBottom); 88ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien } 89ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien} 90ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien 91ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien// TODO: the actual initialization is deferred, maybe make this explicit 929cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levienvoid Layout::init() { 939cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien} 949cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 959cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levienvoid Layout::setFontCollection(const FontCollection *collection) { 969cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien mCollection = collection; 979cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien} 989cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 999cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levienhb_blob_t* referenceTable(hb_face_t* face, hb_tag_t tag, void* userData) { 100bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien MinikinFont* font = reinterpret_cast<MinikinFont *>(userData); 101bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien size_t length = 0; 102bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien bool ok = font->GetTable(tag, NULL, &length); 103bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien if (!ok) { 1049cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien return 0; 1059cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien } 1069cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien char *buffer = reinterpret_cast<char*>(malloc(length)); 1079cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien if (!buffer) { 1089cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien return 0; 1099cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien } 110bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien ok = font->GetTable(tag, reinterpret_cast<uint8_t*>(buffer), &length); 111bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien printf("referenceTable %c%c%c%c length=%d %d\n", 112bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien (tag >>24) & 0xff, (tag>>16)&0xff, (tag>>8)&0xff, tag&0xff, length, ok); 113bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien if (!ok) { 1149cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien free(buffer); 1159cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien return 0; 1169cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien } 1179cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien return hb_blob_create(const_cast<char*>(buffer), length, 1189cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien HB_MEMORY_MODE_WRITABLE, buffer, free); 1199cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien} 1209cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 1219cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levienstatic hb_bool_t harfbuzzGetGlyph(hb_font_t* hbFont, void* fontData, hb_codepoint_t unicode, hb_codepoint_t variationSelector, hb_codepoint_t* glyph, void* userData) 1229cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien{ 123bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien MinikinPaint* paint = reinterpret_cast<MinikinPaint *>(fontData); 124bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien MinikinFont* font = paint->font; 125bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien uint32_t glyph_id; 126bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien bool ok = font->GetGlyph(unicode, &glyph_id); 127bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien if (ok) { 128bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien *glyph = glyph_id; 129bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien } 130bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien return ok; 1319cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien} 1329cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 1339cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levienstatic hb_position_t harfbuzzGetGlyphHorizontalAdvance(hb_font_t* hbFont, void* fontData, hb_codepoint_t glyph, void* userData) 1349cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien{ 135bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien MinikinPaint* paint = reinterpret_cast<MinikinPaint *>(fontData); 136bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien MinikinFont* font = paint->font; 137bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien float advance = font->GetHorizontalAdvance(glyph, *paint); 138bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien return 256 * advance + 0.5; 1399cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien} 1409cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 1419cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levienstatic hb_bool_t harfbuzzGetGlyphHorizontalOrigin(hb_font_t* hbFont, void* fontData, hb_codepoint_t glyph, hb_position_t* x, hb_position_t* y, void* userData) 1429cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien{ 1439cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien // Just return true, following the way that Harfbuzz-FreeType 1449cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien // implementation does. 1459cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien return true; 1469cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien} 1479cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 1489cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levienhb_font_funcs_t* getHbFontFuncs() { 1499cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien static hb_font_funcs_t* hbFontFuncs = 0; 1509cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 1519cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien if (hbFontFuncs == 0) { 1529cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien hbFontFuncs = hb_font_funcs_create(); 1539cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien hb_font_funcs_set_glyph_func(hbFontFuncs, harfbuzzGetGlyph, 0, 0); 1549cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien hb_font_funcs_set_glyph_h_advance_func(hbFontFuncs, harfbuzzGetGlyphHorizontalAdvance, 0, 0); 1559cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien hb_font_funcs_set_glyph_h_origin_func(hbFontFuncs, harfbuzzGetGlyphHorizontalOrigin, 0, 0); 1569cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien hb_font_funcs_make_immutable(hbFontFuncs); 1579cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien } 1589cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien return hbFontFuncs; 1599cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien} 1609cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 161bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levienhb_font_t* create_hb_font(MinikinFont* minikinFont, MinikinPaint* minikinPaint) { 162bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien hb_face_t* face = hb_face_create_for_tables(referenceTable, minikinFont, NULL); 1639cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien hb_font_t* font = hb_font_create(face); 164bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien hb_font_set_funcs(font, getHbFontFuncs(), minikinPaint, 0); 1659cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien // TODO: manage ownership of face 1669cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien return font; 1679cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien} 1689cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 1699cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levienstatic float HBFixedToFloat(hb_position_t v) 1709cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien{ 1719cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien return scalbnf (v, -8); 1729cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien} 1739cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 1749cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levienstatic hb_position_t HBFloatToFixed(float v) 1759cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien{ 1769cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien return scalbnf (v, +8); 1779cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien} 1789cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 1799cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levienvoid Layout::dump() const { 1809cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien for (size_t i = 0; i < mGlyphs.size(); i++) { 1819cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien const LayoutGlyph& glyph = mGlyphs[i]; 1829cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien std::cout << glyph.glyph_id << ": " << glyph.x << ", " << glyph.y << std::endl; 1839cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien } 1849cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien} 1859cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 1869cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien// A couple of things probably need to change: 1879cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien// 1. Deal with multiple sizes in a layout 1889cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien// 2. We'll probably store FT_Face as primary and then use a cache 1899cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien// for the hb fonts 190bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levienint Layout::findFace(MinikinFont* face, MinikinPaint* paint) { 1919cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien unsigned int ix; 1929cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien for (ix = 0; ix < mFaces.size(); ix++) { 1939cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien if (mFaces[ix] == face) { 1949cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien return ix; 1959cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien } 1969cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien } 1979cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien mFaces.push_back(face); 198bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien hb_font_t *font = create_hb_font(face, paint); 1999cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien mHbFonts.push_back(font); 2009cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien return ix; 2019cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien} 2029cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 2039cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levienstatic FontStyle styleFromCss(const CssProperties &props) { 2049cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien int weight = 4; 2059cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien if (props.hasTag(fontWeight)) { 2069cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien weight = props.value(fontWeight).getIntValue() / 100; 2079cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien } 2089cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien bool italic = false; 2099cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien if (props.hasTag(fontStyle)) { 2109cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien italic = props.value(fontStyle).getIntValue() != 0; 2119cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien } 2129cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien return FontStyle(weight, italic); 2139cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien} 2149cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 215ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levienstatic hb_script_t codePointToScript(hb_codepoint_t codepoint) { 216ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien static hb_unicode_funcs_t *u = 0; 217ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien if (!u) { 218ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien u = hb_icu_get_unicode_funcs(); 219ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien } 220ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien return hb_unicode_script(u, codepoint); 221ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien} 222ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien 223ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levienstatic hb_codepoint_t decodeUtf16(const uint16_t *chars, size_t len, ssize_t *iter) { 224ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien const uint16_t v = chars[(*iter)++]; 225ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien // test whether v in (0xd800..0xdfff), lead or trail surrogate 226ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien if ((v & 0xf800) == 0xd800) { 227ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien // test whether v in (0xd800..0xdbff), lead surrogate 228ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien if (size_t(*iter) < len && (v & 0xfc00) == 0xd800) { 229ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien const uint16_t v2 = chars[(*iter)++]; 230ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien // test whether v2 in (0xdc00..0xdfff), trail surrogate 231ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien if ((v2 & 0xfc00) == 0xdc00) { 232ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien // (0xd800 0xdc00) in utf-16 maps to 0x10000 in ucs-32 233ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien const hb_codepoint_t delta = (0xd800 << 10) + 0xdc00 - 0x10000; 234ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien return (((hb_codepoint_t)v) << 10) + v2 - delta; 235ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien } 236ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien (*iter) -= 2; 237ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien return ~0u; 238ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien } else { 239ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien (*iter)--; 240ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien return ~0u; 241ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien } 242ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien } else { 243ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien return v; 244ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien } 245ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien} 246ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien 247ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levienstatic hb_script_t getScriptRun(const uint16_t *chars, size_t len, ssize_t *iter) { 248ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien if (size_t(*iter) == len) { 249ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien return HB_SCRIPT_UNKNOWN; 250ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien } 251ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien uint32_t cp = decodeUtf16(chars, len, iter); 252ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien hb_script_t current_script = codePointToScript(cp); 253ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien for (;;) { 254ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien if (size_t(*iter) == len) 255ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien break; 256ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien const ssize_t prev_iter = *iter; 257ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien cp = decodeUtf16(chars, len, iter); 258ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien const hb_script_t script = codePointToScript(cp); 259ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien if (script != current_script) { 260ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien if (current_script == HB_SCRIPT_INHERITED || 261ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien current_script == HB_SCRIPT_COMMON) { 262ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien current_script = script; 263ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien } else if (script == HB_SCRIPT_INHERITED || 264ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien script == HB_SCRIPT_COMMON) { 265ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien continue; 266ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien } else { 267ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien *iter = prev_iter; 268ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien break; 269ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien } 270ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien } 271ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien } 272ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien if (current_script == HB_SCRIPT_INHERITED) { 273ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien current_script = HB_SCRIPT_COMMON; 274ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien } 275ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien 276ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien return current_script; 277ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien} 278ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien 2799cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien// TODO: API should probably take context 2809cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levienvoid Layout::doLayout(const uint16_t* buf, size_t nchars) { 281b80c1f19c58b927820a8a24bf2218e5645724608Raph Levien AutoMutex _l(gMinikinLock); 282ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien if (buffer == 0) { 283ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien buffer = hb_buffer_create(); 284ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien } 2859cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien FT_Error error; 2869cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 2879cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien vector<FontCollection::Run> items; 2889cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien FontStyle style = styleFromCss(mProps); 2899cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien mCollection->itemize(buf, nchars, style, &items); 2909cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 291bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien MinikinPaint paint; 292bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien double size = mProps.value(fontSize).getFloatValue(); 293bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien paint.size = size; 294d231a4b0b1d482c7ae7717b048112e1fe5d0f5a9Raph Levien int bidiFlags = mProps.hasTag(minikinBidi) ? mProps.value(minikinBidi).getIntValue() : 0; 295d231a4b0b1d482c7ae7717b048112e1fe5d0f5a9Raph Levien bool isRtl = (bidiFlags & 1) != 0; // TODO: do real bidi algo 296d231a4b0b1d482c7ae7717b048112e1fe5d0f5a9Raph Levien if (isRtl) { 297d231a4b0b1d482c7ae7717b048112e1fe5d0f5a9Raph Levien std::reverse(items.begin(), items.end()); 298d231a4b0b1d482c7ae7717b048112e1fe5d0f5a9Raph Levien } 299bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien 3009cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien mGlyphs.clear(); 3019cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien mFaces.clear(); 3029cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien mHbFonts.clear(); 303ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien mBounds.setEmpty(); 304ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien mAdvances.clear(); 305ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien mAdvances.resize(nchars, 0); 3069cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien float x = 0; 3079cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien float y = 0; 3089cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien for (size_t run_ix = 0; run_ix < items.size(); run_ix++) { 3099cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien FontCollection::Run &run = items[run_ix]; 310bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien int font_ix = findFace(run.font, &paint); 311bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien paint.font = mFaces[font_ix]; 3129cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien hb_font_t *hbFont = mHbFonts[font_ix]; 313ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien if (paint.font == NULL) { 314ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien // TODO: should log what went wrong 315ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien continue; 316ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien } 3179cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien#ifdef VERBOSE 3189cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien std::cout << "Run " << run_ix << ", font " << font_ix << 3199cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien " [" << run.start << ":" << run.end << "]" << std::endl; 3209cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien#endif 321bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien hb_font_set_ppem(hbFont, size, size); 322bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien hb_font_set_scale(hbFont, HBFloatToFixed(size), HBFloatToFixed(size)); 3239cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 324d231a4b0b1d482c7ae7717b048112e1fe5d0f5a9Raph Levien // TODO: if there are multiple scripts within a font in an RTL run, 325d231a4b0b1d482c7ae7717b048112e1fe5d0f5a9Raph Levien // we need to reorder those runs. This is unlikely with our current 326d231a4b0b1d482c7ae7717b048112e1fe5d0f5a9Raph Levien // font stack, but should be done for correctness. 3270a689bb956183beebe7d59fccb226a82680f265aRaph Levien ssize_t srunend; 3280a689bb956183beebe7d59fccb226a82680f265aRaph Levien for (ssize_t srunstart = run.start; srunstart < run.end; srunstart = srunend) { 329ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien srunend = srunstart; 330ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien hb_script_t script = getScriptRun(buf, run.end, &srunend); 331ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien 332ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien hb_buffer_reset(buffer); 333ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien hb_buffer_set_script(buffer, script); 334d231a4b0b1d482c7ae7717b048112e1fe5d0f5a9Raph Levien hb_buffer_set_direction(buffer, isRtl? HB_DIRECTION_RTL : HB_DIRECTION_LTR); 335ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien hb_buffer_add_utf16(buffer, buf, nchars, srunstart, srunend - srunstart); 336ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien hb_shape(hbFont, buffer, NULL, 0); 337ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien unsigned int numGlyphs; 338ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien hb_glyph_info_t *info = hb_buffer_get_glyph_infos(buffer, &numGlyphs); 339ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien hb_glyph_position_t *positions = hb_buffer_get_glyph_positions(buffer, NULL); 340ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien for (unsigned int i = 0; i < numGlyphs; i++) { 341ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien #ifdef VERBOSE 342ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien std::cout << positions[i].x_advance << " " << positions[i].y_advance << " " << positions[i].x_offset << " " << positions[i].y_offset << std::endl; std::cout << "DoLayout " << info[i].codepoint << 343ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien ": " << HBFixedToFloat(positions[i].x_advance) << "; " << positions[i].x_offset << ", " << positions[i].y_offset << std::endl; 344ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien #endif 345ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien hb_codepoint_t glyph_ix = info[i].codepoint; 346ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien float xoff = HBFixedToFloat(positions[i].x_offset); 347ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien float yoff = HBFixedToFloat(positions[i].y_offset); 348ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien LayoutGlyph glyph = {font_ix, glyph_ix, x + xoff, y + yoff}; 349ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien mGlyphs.push_back(glyph); 350ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien float xAdvance = HBFixedToFloat(positions[i].x_advance); 351ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien MinikinRect glyphBounds; 352ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien paint.font->GetBounds(&glyphBounds, glyph_ix, paint); 353ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien glyphBounds.offset(x + xoff, y + yoff); 354ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien mBounds.join(glyphBounds); 355ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien size_t cluster = info[i].cluster; 356ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien mAdvances[cluster] += xAdvance; 357ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien x += xAdvance; 358ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien } 3599cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien } 3609cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien } 361bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien mAdvance = x; 3629cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien} 3639cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 3649cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levienvoid Layout::draw(Bitmap* surface, int x0, int y0) const { 365bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien /* 366bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien TODO: redo as MinikinPaint settings 3679cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien if (mProps.hasTag(minikinHinting)) { 3689cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien int hintflags = mProps.value(minikinHinting).getIntValue(); 3699cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien if (hintflags & 1) load_flags |= FT_LOAD_NO_HINTING; 3709cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien if (hintflags & 2) load_flags |= FT_LOAD_NO_AUTOHINT; 3719cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien } 372bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien */ 3739cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien for (size_t i = 0; i < mGlyphs.size(); i++) { 3749cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien const LayoutGlyph& glyph = mGlyphs[i]; 375bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien MinikinFont *mf = mFaces[glyph.font_ix]; 376bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien MinikinFontFreeType *face = static_cast<MinikinFontFreeType *>(mf); 377bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien GlyphBitmap glyphBitmap; 378bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien MinikinPaint paint; 379bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien paint.size = mProps.value(fontSize).getFloatValue(); 380bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien bool ok = face->Render(glyph.glyph_id, paint, &glyphBitmap); 381bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien printf("glyphBitmap.width=%d, glyphBitmap.height=%d (%d, %d) x=%f, y=%f, ok=%d\n", 382bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien glyphBitmap.width, glyphBitmap.height, glyphBitmap.left, glyphBitmap.top, glyph.x, glyph.y, ok); 383bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien if (ok) { 384bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien surface->drawGlyph(glyphBitmap, 385bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien x0 + int(floor(glyph.x + 0.5)), y0 + int(floor(glyph.y + 0.5))); 386bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien } 3879cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien } 3889cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien} 3899cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 3909cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levienvoid Layout::setProperties(string css) { 3919cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien mProps.parse(css); 3929cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien} 3939cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 394ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Leviensize_t Layout::nGlyphs() const { 395ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien return mGlyphs.size(); 396ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien} 397ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien 398ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph LevienMinikinFont *Layout::getFont(int i) const { 399ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien const LayoutGlyph& glyph = mGlyphs[i]; 400ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien return mFaces[glyph.font_ix]; 401ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien} 402ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien 403ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levienunsigned int Layout::getGlyphId(int i) const { 404ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien const LayoutGlyph& glyph = mGlyphs[i]; 405ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien return glyph.glyph_id; 406ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien} 407ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien 408ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levienfloat Layout::getX(int i) const { 409ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien const LayoutGlyph& glyph = mGlyphs[i]; 410ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien return glyph.x; 411ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien} 412ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien 413ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levienfloat Layout::getY(int i) const { 414ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien const LayoutGlyph& glyph = mGlyphs[i]; 415ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien return glyph.y; 416ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien} 417ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien 418bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levienfloat Layout::getAdvance() const { 419bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien return mAdvance; 420bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien} 421bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien 422ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levienvoid Layout::getAdvances(float* advances) { 423ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien memcpy(advances, &mAdvances[0], mAdvances.size() * sizeof(float)); 424ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien} 425ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien 426ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levienvoid Layout::getBounds(MinikinRect* bounds) { 427ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien bounds->set(mBounds); 428ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien} 429ecc2d34ac23a497988f21e5f415b53c007b9d8c5Raph Levien 4309cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien} // namespace android 431