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add display support for osmio4k+
use --enable-lcd as configure option
Origin commit data
------------------
Branch: ni/coolstream
Commit: e2b7f4c6c1
Author: TangoCash <eric@loxat.de>
Date: 2022-10-09 (Sun, 09 Oct 2022)
------------------
This commit was generated by Migit
This commit is contained in:
TangoCash
vanhofen
371
lib/liblcddisplay/fontrenderer.cpp
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371
lib/liblcddisplay/fontrenderer.cpp
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/*
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$Header$
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LCD-Daemon - DBoxII-Project
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Copyright (C) 2001 Steffen Hehn 'McClean'
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Copyright (C) 2003 thegoodguy
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baseroutines by tmbinc
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License: GPL
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <config.h>
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#include "fontrenderer.h"
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#include <stdio.h>
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#include <string.h>
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#include <system/debug.h>
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#include <ft2build.h>
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#include FT_FREETYPE_H
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/* tested with freetype 2.3.9, and 2.1.4 */
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#if FREETYPE_MAJOR >= 2 && FREETYPE_MINOR >= 3
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#define FT_NEW_CACHE_API
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#endif
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// fribidi
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#if 0// defined (ENABLE_FRIBIDI)
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#include <fribidi/fribidi.h>
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#endif
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FT_Error LcdFontRenderClass::myFTC_Face_Requester(FTC_FaceID face_id, FT_Library library, FT_Pointer request_data, FT_Face *aface)
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{
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return ((LcdFontRenderClass *)request_data)->FTC_Face_Requester(face_id, aface);
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}
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LcdFontRenderClass::LcdFontRenderClass(CLCDDisplay *fb)
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{
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framebuffer = fb;
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dprintf(DEBUG_NORMAL, "LcdFontRenderClass::LcdFontRenderClass: initializing core...\n");
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fflush(stdout);
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if (FT_Init_FreeType(&library))
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{
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dprintf(DEBUG_NORMAL, "LcdFontRenderClass::LcdFontRenderClass: failed.\n");
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return;
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}
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dprintf(DEBUG_NORMAL, "\n");
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font = 0;
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pthread_mutex_init(&render_mutex, NULL);
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}
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LcdFontRenderClass::~LcdFontRenderClass()
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{
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FTC_Manager_Done(cacheManager);
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FT_Done_FreeType(library);
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}
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void LcdFontRenderClass::InitFontCache()
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{
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dprintf(DEBUG_NORMAL, "LcdFontRenderClass::InitFontCache: Intializing font cache...\n");
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fflush(stdout);
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if (FTC_Manager_New(library, 3, 0, 0, myFTC_Face_Requester, this, &cacheManager))
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{
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dprintf(DEBUG_NORMAL, "LcdFontRenderClass::InitFontCache: manager failed!\n");
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return;
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}
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if (!cacheManager)
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{
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dprintf(DEBUG_NORMAL, "LcdFontRenderClass::InitFontCache: error.\n");
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return;
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}
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if (FTC_SBitCache_New(cacheManager, &sbitsCache))
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{
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dprintf(DEBUG_NORMAL, "LcdFontRenderClass::InitFontCache: sbit failed!\n");
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return;
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}
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if (FTC_ImageCache_New(cacheManager, &imageCache))
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{
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dprintf(DEBUG_NORMAL, "LcdFontRenderClass::InitFontCache: imagecache failed!\n");
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}
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printf("\n");
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}
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FT_Error LcdFontRenderClass::FTC_Face_Requester(FTC_FaceID face_id, FT_Face *aface)
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{
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fontListEntry *font = (fontListEntry *)face_id;
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if (!font)
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return -1;
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dprintf(DEBUG_NORMAL, "LcdFontRenderClass::FTC_Face_Requester: FTC_Face_Requester (%s/%s)\n", font->family, font->style);
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int error;
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if ((error = FT_New_Face(library, font->filename, 0, aface)))
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{
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dprintf(DEBUG_NORMAL, "LcdFontRenderClass::FTC_Face_Requester: failed: %i\n", error);
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return error;
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}
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return 0;
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}
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FTC_FaceID LcdFontRenderClass::getFaceID(const char *family, const char *style)
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{
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for (fontListEntry *f = font; f; f = f->next)
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{
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if ((!strcmp(f->family, family)) && (!strcmp(f->style, style)))
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return (FTC_FaceID)f;
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}
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for (fontListEntry *f = font; f; f = f->next)
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{
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if (!strcmp(f->family, family))
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return (FTC_FaceID)f;
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}
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return 0;
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}
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#ifdef FT_NEW_CACHE_API
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FT_Error LcdFontRenderClass::getGlyphBitmap(FTC_ImageType font, FT_ULong glyph_index, FTC_SBit *sbit)
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{
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return FTC_SBitCache_Lookup(sbitsCache, font, glyph_index, sbit, NULL);
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}
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#else
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FT_Error LcdFontRenderClass::getGlyphBitmap(FTC_Image_Desc *font, FT_ULong glyph_index, FTC_SBit *sbit)
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{
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return FTC_SBit_Cache_Lookup(sbitsCache, font, glyph_index, sbit);
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}
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#endif
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const char *LcdFontRenderClass::AddFont(const char *const filename)
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{
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dprintf(DEBUG_NORMAL, "LcdFontRenderClass::AddFont: adding font %s...\n", filename);
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fflush(stdout);
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int error;
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fontListEntry *n;
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FT_Face face;
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if ((error = FT_New_Face(library, filename, 0, &face)))
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{
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dprintf(DEBUG_NORMAL, "LcdFontRenderClass::AddFont: failed: %i\n", error);
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return NULL;
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}
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n = new fontListEntry;
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n->filename = strdup(filename);
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n->family = strdup(face->family_name);
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n->style = strdup(face->style_name);
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FT_Done_Face(face);
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n->next = font;
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dprintf(DEBUG_NORMAL, "LcdFontRenderClass::AddFont: OK (%s/%s)\n", n->family, n->style);
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font = n;
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return n->style;
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}
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LcdFontRenderClass::fontListEntry::~fontListEntry()
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{
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free(filename);
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free(family);
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free(style);
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}
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LcdFont *LcdFontRenderClass::getFont(const char *family, const char *style, int size)
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{
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FTC_FaceID id = getFaceID(family, style);
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if (!id)
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return 0;
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return new LcdFont(framebuffer, this, id, size);
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}
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LcdFont::LcdFont(CLCDDisplay *fb, LcdFontRenderClass *render, FTC_FaceID faceid, int isize)
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{
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framebuffer = fb;
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renderer = render;
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#ifdef FT_NEW_CACHE_API
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font.face_id = faceid;
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font.width = isize;
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font.height = isize;
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font.flags = FT_LOAD_FORCE_AUTOHINT | FT_LOAD_MONOCHROME;
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#else
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font.font.face_id = faceid;
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font.font.pix_width = isize;
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font.font.pix_height = isize;
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font.image_type = ftc_image_mono;
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font.image_type |= ftc_image_flag_autohinted;
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#endif
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}
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FT_Error LcdFont::getGlyphBitmap(FT_ULong glyph_index, FTC_SBit *sbit)
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{
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return renderer->getGlyphBitmap(&font, glyph_index, sbit);
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}
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extern int UTF8ToUnicode(const char *&text, const bool utf8_encoded); //defined in src/driver/fontrenderer.cpp
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#if 0 //defined (ENABLE_FRIBIDI)
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std::string fribidiShapeChar(const char *text, const bool utf8_encoded);
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#endif
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void LcdFont::RenderString(int x, int y, const int width, const char *text, const int color, const int selected, const bool utf8_encoded)
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{
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int err;
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pthread_mutex_lock(&renderer->render_mutex);
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// fribidi
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#if 0// defined (ENABLE_FRIBIDI)
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std::string Text = fribidiShapeChar(text, utf8_encoded);
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text = Text.c_str();
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#endif
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#ifdef FT_NEW_CACHE_API
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FTC_ScalerRec scaler;
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scaler.face_id = font.face_id;
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scaler.width = font.width;
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scaler.height = font.height;
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scaler.pixel = true;
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if ((err = FTC_Manager_LookupSize(renderer->cacheManager, &scaler, &size)) != 0)
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#else
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if ((err = FTC_Manager_Lookup_Size(renderer->cacheManager, &font.font, &face, &size)) != 0)
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#endif
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{
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dprintf(DEBUG_NORMAL, "LcdFont::RenderString: FTC_Manager_Lookup_Size failed! (%d)\n", err);
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pthread_mutex_unlock(&renderer->render_mutex);
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return;
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}
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int left = x, step_y = (size->metrics.height >> 6) * 3 / 4 + 4;
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int pos = 0;
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for (; *text; text++)
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{
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pos++;
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FTC_SBit glyph;
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//if ((x + size->metrics.x_ppem > (left+width)) || (*text=='\n'))
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if (x + size->metrics.x_ppem > (left + width))
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{
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//width clip
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break;
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}
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if (*text == '\n')
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{
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x = left;
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y += step_y;
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}
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int unicode_value = UTF8ToUnicode(text, utf8_encoded);
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if (unicode_value == -1)
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break;
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#ifdef FT_NEW_CACHE_API
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int index = FT_Get_Char_Index(size->face, unicode_value);
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#else
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int index = FT_Get_Char_Index(face, unicode_value);
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#endif
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if (!index)
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continue;
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if (getGlyphBitmap(index, &glyph))
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{
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dprintf(DEBUG_NORMAL, "LcdFont::RenderString: failed to get glyph bitmap.\n");
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continue;
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}
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int rx = x + glyph->left;
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int ry = y - glyph->top;
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if (pos == selected)
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{
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framebuffer->draw_fill_rect(x - 2, y - glyph->height - 2, x + glyph->width + 2, y + 2, CLCDDisplay::PIXEL_INV);
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}
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for (int ay = 0; ay < glyph->height; ay++)
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{
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int ax = 0;
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int w = glyph->width;
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int xpos = rx;
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for (; ax < w; ax++)
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{
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unsigned char c = glyph->buffer[ay * abs(glyph->pitch) + (ax >> 3)];
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if ((c >> (7 - (ax & 7))) & 1)
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framebuffer->draw_point(xpos, ry, color);
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xpos ++;
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}
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ry++;
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}
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x += glyph->xadvance + 1;
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}
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pthread_mutex_unlock(&renderer->render_mutex);
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}
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int LcdFont::getRenderWidth(const char *text, const bool utf8_encoded)
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{
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pthread_mutex_lock(&renderer->render_mutex);
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// fribidi
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#if 0// defined (ENABLE_FRIBIDI)
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std::string Text = fribidiShapeChar(text, utf8_encoded);
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text = Text.c_str();
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#endif
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FT_Error err;
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#ifdef FT_NEW_CACHE_API
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FTC_ScalerRec scaler;
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scaler.face_id = font.face_id;
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scaler.width = font.width;
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scaler.height = font.height;
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scaler.pixel = true;
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err = FTC_Manager_LookupSize(renderer->cacheManager, &scaler, &size);
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#else
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err = FTC_Manager_Lookup_Size(renderer->cacheManager, &font.font, &face, &size);
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#endif
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if (err != 0)
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{
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dprintf(DEBUG_NORMAL, "LcdFont::getRenderWidth: FTC_Manager_Lookup_Size failed! (0x%x)\n", err);
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pthread_mutex_unlock(&renderer->render_mutex);
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return -1;
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}
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int x = 0;
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for (; *text; text++)
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{
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FTC_SBit glyph;
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int unicode_value = UTF8ToUnicode(text, utf8_encoded);
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if (unicode_value == -1)
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break;
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#ifdef FT_NEW_CACHE_API
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int index = FT_Get_Char_Index(size->face, unicode_value);
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#else
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int index = FT_Get_Char_Index(face, unicode_value);
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#endif
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if (!index)
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continue;
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if (getGlyphBitmap(index, &glyph))
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{
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dprintf(DEBUG_NORMAL, "LcdFont::getRenderWidth: failed to get glyph bitmap.\n");
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continue;
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}
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x += glyph->xadvance + 1;
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}
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pthread_mutex_unlock(&renderer->render_mutex);
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return x;
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}
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