mirror of
https://github.com/mpv-player/mpv
synced 2024-12-14 02:45:43 +00:00
6b64c8274e
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@21622 b3059339-0415-0410-9bf9-f77b7e298cf2
1187 lines
31 KiB
C
1187 lines
31 KiB
C
/*
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* Renders antialiased fonts for mplayer using freetype library.
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* Should work with TrueType, Type1 and any other font supported by libfreetype.
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*
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* Artur Zaprzala <zybi@fanthom.irc.pl>
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*
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* ported inside mplayer by Jindrich Makovicka
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* <makovick@gmail.com>
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*
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*/
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#include "config.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <math.h>
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#include <string.h>
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#ifdef USE_ICONV
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#include <iconv.h>
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#endif
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#include <ft2build.h>
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#include FT_FREETYPE_H
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#include FT_GLYPH_H
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#ifdef HAVE_FONTCONFIG
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#include <fontconfig/fontconfig.h>
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#endif
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#include "libavutil/common.h"
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#include "mpbswap.h"
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#include "font_load.h"
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#include "mp_msg.h"
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#include "mplayer.h"
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#include "osd_font.h"
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#if (FREETYPE_MAJOR > 2) || (FREETYPE_MAJOR == 2 && FREETYPE_MINOR >= 1)
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#define HAVE_FREETYPE21
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#endif
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char *get_path(const char *filename);
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char *subtitle_font_encoding = NULL;
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float text_font_scale_factor = 5.0;
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float osd_font_scale_factor = 6.0;
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float subtitle_font_radius = 2.0;
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float subtitle_font_thickness = 2.0;
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// 0 = no autoscale
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// 1 = video height
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// 2 = video width
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// 3 = diagonal
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int subtitle_autoscale = 3;
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int vo_image_width = 0;
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int vo_image_height = 0;
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int force_load_font;
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int using_freetype = 0;
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int font_fontconfig = 0;
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//// constants
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static unsigned int const colors = 256;
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static unsigned int const maxcolor = 255;
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static unsigned const base = 256;
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static unsigned const first_char = 33;
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#define MAX_CHARSET_SIZE 60000
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static FT_Library library;
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#define OSD_CHARSET_SIZE 15
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static FT_ULong osd_charset[OSD_CHARSET_SIZE] =
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{
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0xe001, 0xe002, 0xe003, 0xe004, 0xe005, 0xe006, 0xe007, 0xe008,
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0xe009, 0xe00a, 0xe00b, 0xe010, 0xe011, 0xe012, 0xe013
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};
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static FT_ULong osd_charcodes[OSD_CHARSET_SIZE] =
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{
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0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,
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0x09,0x0a,0x0b,0x10,0x11,0x12,0x13
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};
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#define f266ToInt(x) (((x)+32)>>6) // round fractional fixed point number to integer
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// coordinates are in 26.6 pixels (i.e. 1/64th of pixels)
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#define f266CeilToInt(x) (((x)+63)>>6) // ceiling
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#define f266FloorToInt(x) ((x)>>6) // floor
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#define f1616ToInt(x) (((x)+0x8000)>>16) // 16.16
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#define floatTof266(x) ((int)((x)*(1<<6)+0.5))
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#define ALIGN(x) (((x)+7)&~7) // 8 byte align
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#define WARNING(msg, args...) mp_msg(MSGT_OSD, MSGL_WARN, msg "\n", ## args)
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#define DEBUG 0
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//static double ttime;
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static void paste_bitmap(unsigned char *bbuffer, FT_Bitmap *bitmap, int x, int y, int width, int height, int bwidth) {
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int drow = x+y*width;
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int srow = 0;
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int sp, dp, w, h;
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if (bitmap->pixel_mode==ft_pixel_mode_mono)
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for (h = bitmap->rows; h>0 && height > 0; --h, height--, drow+=width, srow+=bitmap->pitch)
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for (w = bwidth, sp=dp=0; w>0; --w, ++dp, ++sp)
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bbuffer[drow+dp] = (bitmap->buffer[srow+sp/8] & (0x80>>(sp%8))) ? 255:0;
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else
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for (h = bitmap->rows; h>0 && height > 0; --h, height--, drow+=width, srow+=bitmap->pitch)
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for (w = bwidth, sp=dp=0; w>0; --w, ++dp, ++sp)
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bbuffer[drow+dp] = bitmap->buffer[srow+sp];
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}
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static int check_font(font_desc_t *desc, float ppem, int padding, int pic_idx,
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int charset_size, FT_ULong *charset, FT_ULong *charcodes,
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int unicode) {
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FT_Error error;
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FT_Face face = desc->faces[pic_idx];
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int const load_flags = FT_LOAD_DEFAULT;
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int ymin = INT_MAX, ymax = INT_MIN;
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int space_advance = 20;
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int width, height;
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unsigned char *bbuffer;
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int i, uni_charmap = 1;
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error = FT_Select_Charmap(face, ft_encoding_unicode);
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// fprintf(stderr, "select unicode charmap: %d\n", error);
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if (face->charmap==NULL || face->charmap->encoding!=ft_encoding_unicode) {
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WARNING("Unicode charmap not available for this font. Very bad!");
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uni_charmap = 0;
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error = FT_Set_Charmap(face, face->charmaps[0]);
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if (error) WARNING("No charmaps! Strange.");
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}
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/* set size */
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if (FT_IS_SCALABLE(face)) {
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error = FT_Set_Char_Size(face, 0, floatTof266(ppem), 0, 0);
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if (error) WARNING("FT_Set_Char_Size failed.");
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} else {
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int j = 0;
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int jppem = face->available_sizes[0].height;
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/* find closest size */
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for (i = 0; i<face->num_fixed_sizes; ++i) {
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if (fabs(face->available_sizes[i].height - ppem) < abs(face->available_sizes[i].height - jppem)) {
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j = i;
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jppem = face->available_sizes[i].height;
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}
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}
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WARNING("Selected font is not scalable. Using ppem=%i.", face->available_sizes[j].height);
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error = FT_Set_Pixel_Sizes(face, face->available_sizes[j].width, face->available_sizes[j].height);
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if (error) WARNING("FT_Set_Pixel_Sizes failed.");
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}
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if (FT_IS_FIXED_WIDTH(face))
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WARNING("Selected font is fixed-width.");
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/* compute space advance */
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error = FT_Load_Char(face, ' ', load_flags);
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if (error) WARNING("spacewidth set to default.");
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else space_advance = f266ToInt(face->glyph->advance.x);
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if (!desc->spacewidth) desc->spacewidth = 2*padding + space_advance;
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if (!desc->charspace) desc->charspace = -2*padding;
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if (!desc->height) desc->height = f266ToInt(face->size->metrics.height);
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for (i= 0; i<charset_size; ++i) {
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FT_ULong character, code;
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FT_UInt glyph_index;
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character = charset[i];
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code = charcodes[i];
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desc->font[unicode?character:code] = pic_idx;
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// get glyph index
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if (character==0)
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glyph_index = 0;
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else {
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glyph_index = FT_Get_Char_Index(face, uni_charmap ? character:code);
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if (glyph_index==0) {
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WARNING("Glyph for char 0x%02lx|U+%04lX|%c not found.", code, character,
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code<' '||code>255 ? '.':(char)code);
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desc->font[unicode?character:code] = -1;
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continue;
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}
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}
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desc->glyph_index[unicode?character:code] = glyph_index;
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}
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// fprintf(stderr, "font height: %lf\n", (double)(face->bbox.yMax-face->bbox.yMin)/(double)face->units_per_EM*ppem);
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// fprintf(stderr, "font width: %lf\n", (double)(face->bbox.xMax-face->bbox.xMin)/(double)face->units_per_EM*ppem);
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ymax = (double)(face->bbox.yMax)/(double)face->units_per_EM*ppem+1;
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ymin = (double)(face->bbox.yMin)/(double)face->units_per_EM*ppem-1;
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width = ppem*(face->bbox.xMax-face->bbox.xMin)/face->units_per_EM+3+2*padding;
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if (desc->max_width < width) desc->max_width = width;
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width = ALIGN(width);
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desc->pic_b[pic_idx]->charwidth = width;
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if (width <= 0) {
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mp_msg(MSGT_OSD, MSGL_ERR, "Wrong bounding box, width <= 0 !\n");
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return -1;
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}
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if (ymax<=ymin) {
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mp_msg(MSGT_OSD, MSGL_ERR, "Something went wrong. Use the source!\n");
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return -1;
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}
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height = ymax - ymin + 2*padding;
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if (height <= 0) {
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mp_msg(MSGT_OSD, MSGL_ERR, "Wrong bounding box, height <= 0 !\n");
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return -1;
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}
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if (desc->max_height < height) desc->max_height = height;
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desc->pic_b[pic_idx]->charheight = height;
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// fprintf(stderr, "font height2: %d\n", height);
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desc->pic_b[pic_idx]->baseline = ymax + padding;
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desc->pic_b[pic_idx]->padding = padding;
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desc->pic_b[pic_idx]->current_alloc = 0;
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desc->pic_b[pic_idx]->current_count = 0;
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bbuffer = NULL;
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desc->pic_b[pic_idx]->w = width;
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desc->pic_b[pic_idx]->h = height;
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desc->pic_b[pic_idx]->c = colors;
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desc->pic_b[pic_idx]->bmp = bbuffer;
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desc->pic_b[pic_idx]->pen = 0;
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return 0;
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}
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// general outline
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static void outline(
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unsigned char *s,
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unsigned char *t,
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int width,
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int height,
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int stride,
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unsigned char *m,
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int r,
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int mwidth,
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int msize) {
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int x, y;
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for (y = 0; y<height; y++) {
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for (x = 0; x<width; x++) {
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const int src= s[x];
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if(src==0) continue;
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{
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const int x1=(x<r) ? r-x : 0;
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const int y1=(y<r) ? r-y : 0;
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const int x2=(x+r>=width ) ? r+width -x : 2*r+1;
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const int y2=(y+r>=height) ? r+height-y : 2*r+1;
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register unsigned char *dstp= t + (y1+y-r)* stride + x-r;
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//register int *mp = m + y1 *mwidth;
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register unsigned char *mp= m + msize*src + y1*mwidth;
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int my;
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for(my= y1; my<y2; my++){
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register int mx;
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for(mx= x1; mx<x2; mx++){
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if(dstp[mx] < mp[mx]) dstp[mx]= mp[mx];
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}
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dstp+=stride;
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mp+=mwidth;
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}
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}
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}
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s+= stride;
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}
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}
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// 1 pixel outline
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static void outline1(
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unsigned char *s,
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unsigned char *t,
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int width,
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int height,
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int stride) {
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int x, y;
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int skip = stride-width;
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for (x = 0; x<width; ++x, ++s, ++t) *t = *s;
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s += skip;
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t += skip;
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for (y = 1; y<height-1; ++y) {
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*t++ = *s++;
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for (x = 1; x<width-1; ++x, ++s, ++t) {
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unsigned v = (
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s[-1-stride]+
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s[-1+stride]+
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s[+1-stride]+
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s[+1+stride]
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)/2 + (
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s[-1]+
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s[+1]+
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s[-stride]+
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s[+stride]+
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s[0]
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);
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*t = v>maxcolor ? maxcolor : v;
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}
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*t++ = *s++;
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s += skip;
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t += skip;
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}
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for (x = 0; x<width; ++x, ++s, ++t) *t = *s;
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}
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// "0 pixel outline"
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static void outline0(
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unsigned char *s,
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unsigned char *t,
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int width,
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int height,
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int stride) {
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int y;
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for (y = 0; y<height; ++y) {
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memcpy(t, s, width);
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s += stride;
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t += stride;
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}
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}
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// gaussian blur
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void blur(
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unsigned char *buffer,
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unsigned short *tmp2,
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int width,
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int height,
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int stride,
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int *m2,
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int r,
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int mwidth) {
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int x, y;
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unsigned char *s = buffer;
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unsigned short *t = tmp2+1;
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for(y=0; y<height; y++){
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memset(t-1, 0, (width+1)*sizeof(short));
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for(x=0; x<r; x++){
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const int src= s[x];
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if(src){
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register unsigned short *dstp= t + x-r;
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int mx;
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unsigned *m3= m2 + src*mwidth;
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for(mx=r-x; mx<mwidth; mx++){
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dstp[mx]+= m3[mx];
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}
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}
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}
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for(; x<width-r; x++){
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const int src= s[x];
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if(src){
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register unsigned short *dstp= t + x-r;
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int mx;
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unsigned *m3= m2 + src*mwidth;
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for(mx=0; mx<mwidth; mx++){
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dstp[mx]+= m3[mx];
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}
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}
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}
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for(; x<width; x++){
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const int src= s[x];
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if(src){
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register unsigned short *dstp= t + x-r;
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int mx;
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const int x2= r+width -x;
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unsigned *m3= m2 + src*mwidth;
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for(mx=0; mx<x2; mx++){
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dstp[mx]+= m3[mx];
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}
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}
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}
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s+= stride;
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t+= width + 1;
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}
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t = tmp2;
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for(x=0; x<width; x++){
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for(y=0; y<r; y++){
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unsigned short *srcp= t + y*(width+1) + 1;
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int src= *srcp;
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if(src){
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register unsigned short *dstp= srcp - 1 + width+1;
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const int src2= (src + 128)>>8;
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unsigned *m3= m2 + src2*mwidth;
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int mx;
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*srcp= 128;
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for(mx=r-1; mx<mwidth; mx++){
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*dstp += m3[mx];
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dstp+= width+1;
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}
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}
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}
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for(; y<height-r; y++){
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unsigned short *srcp= t + y*(width+1) + 1;
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int src= *srcp;
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if(src){
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register unsigned short *dstp= srcp - 1 - r*(width+1);
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const int src2= (src + 128)>>8;
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unsigned *m3= m2 + src2*mwidth;
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int mx;
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*srcp= 128;
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for(mx=0; mx<mwidth; mx++){
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*dstp += m3[mx];
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dstp+= width+1;
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}
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}
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}
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for(; y<height; y++){
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unsigned short *srcp= t + y*(width+1) + 1;
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int src= *srcp;
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if(src){
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const int y2=r+height-y;
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register unsigned short *dstp= srcp - 1 - r*(width+1);
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const int src2= (src + 128)>>8;
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unsigned *m3= m2 + src2*mwidth;
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int mx;
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*srcp= 128;
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for(mx=0; mx<y2; mx++){
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*dstp += m3[mx];
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dstp+= width+1;
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}
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}
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}
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t++;
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}
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t = tmp2;
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s = buffer;
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for(y=0; y<height; y++){
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for(x=0; x<width; x++){
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s[x]= t[x]>>8;
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}
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s+= stride;
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t+= width + 1;
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}
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}
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// Gaussian matrix
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static unsigned gmatrix(unsigned char *m, int r, int w, double const A) {
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unsigned volume = 0; // volume under Gaussian area is exactly -pi*base/A
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int mx, my;
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for (my = 0; my<w; ++my) {
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for (mx = 0; mx<w; ++mx) {
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m[mx+my*w] = (exp(A * ((mx-r)*(mx-r)+(my-r)*(my-r))) * base + .5);
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volume+= m[mx+my*w];
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}
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}
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mp_msg(MSGT_OSD, MSGL_DBG2, "A= %f\n", A);
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mp_msg(MSGT_OSD, MSGL_DBG2, "volume: %i; exact: %.0f; volume/exact: %.6f\n\n", volume, -M_PI*base/A, volume/(-M_PI*base/A));
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return volume;
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}
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|
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static void resample_alpha(unsigned char *abuf, unsigned char *bbuf, int width, int height, int stride, float factor)
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{
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int f=factor*256.0f;
|
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int i,j;
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for (i = 0; i < height; i++) {
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unsigned char *a = abuf+i*stride;
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unsigned char *b = bbuf+i*stride;
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for(j=0;j<width;j++,a++,b++){
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int x=*a; // alpha
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int y=*b; // bitmap
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x=255-((x*f)>>8); // scale
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if (x+y>255) x=255-y; // to avoid overflows
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if (x<1) x=1; else if (x>=252) x=0;
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*a=x;
|
|
}
|
|
}
|
|
}
|
|
|
|
#define ALLOC_INCR 32
|
|
void render_one_glyph(font_desc_t *desc, int c)
|
|
{
|
|
FT_GlyphSlot slot;
|
|
FT_UInt glyph_index;
|
|
FT_BitmapGlyph glyph;
|
|
int width, height, stride, maxw, off;
|
|
unsigned char *abuffer, *bbuffer;
|
|
|
|
int const load_flags = FT_LOAD_DEFAULT;
|
|
int pen_xa;
|
|
int font = desc->font[c];
|
|
int error;
|
|
|
|
// fprintf(stderr, "render_one_glyph %d\n", c);
|
|
|
|
if (!desc->dynamic) return;
|
|
if (desc->width[c] != -1) return;
|
|
if (desc->font[c] == -1) return;
|
|
|
|
glyph_index = desc->glyph_index[c];
|
|
|
|
// load glyph
|
|
error = FT_Load_Glyph(desc->faces[font], glyph_index, load_flags);
|
|
if (error) {
|
|
WARNING("FT_Load_Glyph 0x%02x (char 0x%04x) failed.", glyph_index, c);
|
|
desc->font[c] = -1;
|
|
return;
|
|
}
|
|
slot = desc->faces[font]->glyph;
|
|
|
|
// render glyph
|
|
if (slot->format != ft_glyph_format_bitmap) {
|
|
error = FT_Render_Glyph(slot, ft_render_mode_normal);
|
|
if (error) {
|
|
WARNING("FT_Render_Glyph 0x%04x (char 0x%04x) failed.", glyph_index, c);
|
|
desc->font[c] = -1;
|
|
return;
|
|
}
|
|
}
|
|
|
|
// extract glyph image
|
|
error = FT_Get_Glyph(slot, (FT_Glyph*)&glyph);
|
|
if (error) {
|
|
WARNING("FT_Get_Glyph 0x%04x (char 0x%04x) failed.", glyph_index, c);
|
|
desc->font[c] = -1;
|
|
return;
|
|
}
|
|
|
|
// fprintf(stderr, "glyph generated\n");
|
|
|
|
maxw = desc->pic_b[font]->charwidth;
|
|
|
|
if (glyph->bitmap.width > maxw) {
|
|
fprintf(stderr, "glyph too wide!\n");
|
|
}
|
|
|
|
// allocate new memory, if needed
|
|
// fprintf(stderr, "\n%d %d %d\n", desc->pic_b[font]->charwidth, desc->pic_b[font]->charheight, desc->pic_b[font]->current_alloc);
|
|
if (desc->pic_b[font]->current_count >= desc->pic_b[font]->current_alloc) {
|
|
int newsize = desc->pic_b[font]->charwidth*desc->pic_b[font]->charheight*(desc->pic_b[font]->current_alloc+ALLOC_INCR);
|
|
int increment = desc->pic_b[font]->charwidth*desc->pic_b[font]->charheight*ALLOC_INCR;
|
|
desc->pic_b[font]->current_alloc += ALLOC_INCR;
|
|
|
|
// fprintf(stderr, "\nns = %d inc = %d\n", newsize, increment);
|
|
|
|
desc->pic_b[font]->bmp = realloc(desc->pic_b[font]->bmp, newsize);
|
|
desc->pic_a[font]->bmp = realloc(desc->pic_a[font]->bmp, newsize);
|
|
|
|
off = desc->pic_b[font]->current_count*desc->pic_b[font]->charwidth*desc->pic_b[font]->charheight;
|
|
memset(desc->pic_b[font]->bmp+off, 0, increment);
|
|
memset(desc->pic_a[font]->bmp+off, 0, increment);
|
|
}
|
|
|
|
abuffer = desc->pic_a[font]->bmp;
|
|
bbuffer = desc->pic_b[font]->bmp;
|
|
|
|
off = desc->pic_b[font]->current_count*desc->pic_b[font]->charwidth*desc->pic_b[font]->charheight;
|
|
|
|
paste_bitmap(bbuffer+off,
|
|
&glyph->bitmap,
|
|
desc->pic_b[font]->padding + glyph->left,
|
|
desc->pic_b[font]->baseline - glyph->top,
|
|
desc->pic_b[font]->charwidth, desc->pic_b[font]->charheight,
|
|
glyph->bitmap.width <= maxw ? glyph->bitmap.width : maxw);
|
|
|
|
// fprintf(stderr, "glyph pasted\n");
|
|
FT_Done_Glyph((FT_Glyph)glyph);
|
|
|
|
/* advance pen */
|
|
pen_xa = f266ToInt(slot->advance.x) + 2*desc->pic_b[font]->padding;
|
|
if (pen_xa > maxw) pen_xa = maxw;
|
|
|
|
desc->start[c] = off;
|
|
width = desc->width[c] = pen_xa;
|
|
height = desc->pic_b[font]->charheight;
|
|
stride = desc->pic_b[font]->w;
|
|
|
|
if (desc->tables.o_r == 0) {
|
|
outline0(bbuffer+off, abuffer+off, width, height, stride);
|
|
} else if (desc->tables.o_r == 1) {
|
|
outline1(bbuffer+off, abuffer+off, width, height, stride);
|
|
} else {
|
|
outline(bbuffer+off, abuffer+off, width, height, stride,
|
|
desc->tables.omt, desc->tables.o_r, desc->tables.o_w,
|
|
desc->tables.o_size);
|
|
}
|
|
// fprintf(stderr, "fg: outline t = %lf\n", GetTimer()-t);
|
|
|
|
if (desc->tables.g_r) {
|
|
blur(abuffer+off, desc->tables.tmp, width, height, stride,
|
|
desc->tables.gt2, desc->tables.g_r,
|
|
desc->tables.g_w);
|
|
// fprintf(stderr, "fg: blur t = %lf\n", GetTimer()-t);
|
|
}
|
|
|
|
resample_alpha(abuffer+off, bbuffer+off, width, height, stride, font_factor);
|
|
|
|
desc->pic_b[font]->current_count++;
|
|
}
|
|
|
|
|
|
static int prepare_font(font_desc_t *desc, FT_Face face, float ppem, int pic_idx,
|
|
int charset_size, FT_ULong *charset, FT_ULong *charcodes, int unicode,
|
|
double thickness, double radius)
|
|
{
|
|
int i, err;
|
|
int padding = ceil(radius) + ceil(thickness);
|
|
|
|
desc->faces[pic_idx] = face;
|
|
|
|
desc->pic_a[pic_idx] = malloc(sizeof(raw_file));
|
|
if (!desc->pic_a[pic_idx]) return -1;
|
|
desc->pic_b[pic_idx] = malloc(sizeof(raw_file));
|
|
if (!desc->pic_b[pic_idx]) return -1;
|
|
|
|
desc->pic_a[pic_idx]->bmp = NULL;
|
|
desc->pic_a[pic_idx]->pal = NULL;
|
|
desc->pic_b[pic_idx]->bmp = NULL;
|
|
desc->pic_b[pic_idx]->pal = NULL;
|
|
|
|
desc->pic_a[pic_idx]->pal = malloc(sizeof(unsigned char)*256*3);
|
|
if (!desc->pic_a[pic_idx]->pal) return -1;
|
|
for (i = 0; i<768; ++i) desc->pic_a[pic_idx]->pal[i] = i/3;
|
|
|
|
desc->pic_b[pic_idx]->pal = malloc(sizeof(unsigned char)*256*3);
|
|
if (!desc->pic_b[pic_idx]->pal) return -1;
|
|
for (i = 0; i<768; ++i) desc->pic_b[pic_idx]->pal[i] = i/3;
|
|
|
|
// ttime = GetTimer();
|
|
err = check_font(desc, ppem, padding, pic_idx, charset_size, charset, charcodes, unicode);
|
|
// ttime=GetTimer()-ttime;
|
|
// printf("render: %7lf us\n",ttime);
|
|
if (err) return -1;
|
|
// fprintf(stderr, "fg: render t = %lf\n", GetTimer()-t);
|
|
|
|
desc->pic_a[pic_idx]->w = desc->pic_b[pic_idx]->w;
|
|
desc->pic_a[pic_idx]->h = desc->pic_b[pic_idx]->h;
|
|
desc->pic_a[pic_idx]->c = colors;
|
|
|
|
desc->pic_a[pic_idx]->bmp = NULL;
|
|
|
|
// fprintf(stderr, "fg: w = %d, h = %d\n", desc->pic_a[pic_idx]->w, desc->pic_a[pic_idx]->h);
|
|
return 0;
|
|
|
|
}
|
|
|
|
static int generate_tables(font_desc_t *desc, double thickness, double radius)
|
|
{
|
|
int width = desc->max_height;
|
|
int height = desc->max_width;
|
|
|
|
double A = log(1.0/base)/(radius*radius*2);
|
|
int mx, my, i;
|
|
double volume_diff, volume_factor = 0;
|
|
unsigned char *omtp;
|
|
|
|
desc->tables.g_r = ceil(radius);
|
|
desc->tables.o_r = ceil(thickness);
|
|
desc->tables.g_w = 2*desc->tables.g_r+1;
|
|
desc->tables.o_w = 2*desc->tables.o_r+1;
|
|
desc->tables.o_size = desc->tables.o_w * desc->tables.o_w;
|
|
|
|
// fprintf(stderr, "o_r = %d\n", desc->tables.o_r);
|
|
|
|
if (desc->tables.g_r) {
|
|
desc->tables.g = malloc(desc->tables.g_w * sizeof(unsigned));
|
|
desc->tables.gt2 = malloc(256 * desc->tables.g_w * sizeof(unsigned));
|
|
if (desc->tables.g==NULL || desc->tables.gt2==NULL) {
|
|
return -1;
|
|
}
|
|
}
|
|
desc->tables.om = malloc(desc->tables.o_w*desc->tables.o_w * sizeof(unsigned));
|
|
desc->tables.omt = malloc(desc->tables.o_size*256);
|
|
|
|
omtp = desc->tables.omt;
|
|
desc->tables.tmp = malloc((width+1)*height*sizeof(short));
|
|
|
|
if (desc->tables.om==NULL || desc->tables.omt==NULL || desc->tables.tmp==NULL) {
|
|
return -1;
|
|
};
|
|
|
|
if (desc->tables.g_r) {
|
|
// gaussian curve with volume = 256
|
|
for (volume_diff=10000000; volume_diff>0.0000001; volume_diff*=0.5){
|
|
volume_factor+= volume_diff;
|
|
desc->tables.volume=0;
|
|
for (i = 0; i<desc->tables.g_w; ++i) {
|
|
desc->tables.g[i] = (unsigned)(exp(A * (i-desc->tables.g_r)*(i-desc->tables.g_r)) * volume_factor + .5);
|
|
desc->tables.volume+= desc->tables.g[i];
|
|
}
|
|
if(desc->tables.volume>256) volume_factor-= volume_diff;
|
|
}
|
|
desc->tables.volume=0;
|
|
for (i = 0; i<desc->tables.g_w; ++i) {
|
|
desc->tables.g[i] = (unsigned)(exp(A * (i-desc->tables.g_r)*(i-desc->tables.g_r)) * volume_factor + .5);
|
|
desc->tables.volume+= desc->tables.g[i];
|
|
}
|
|
|
|
// gauss table:
|
|
for(mx=0;mx<desc->tables.g_w;mx++){
|
|
for(i=0;i<256;i++){
|
|
desc->tables.gt2[mx+i*desc->tables.g_w] = i*desc->tables.g[mx];
|
|
}
|
|
}
|
|
}
|
|
|
|
/* outline matrix */
|
|
for (my = 0; my<desc->tables.o_w; ++my) {
|
|
for (mx = 0; mx<desc->tables.o_w; ++mx) {
|
|
// antialiased circle would be perfect here, but this one is good enough
|
|
double d = thickness + 1 - sqrt((mx-desc->tables.o_r)*(mx-desc->tables.o_r)+(my-desc->tables.o_r)*(my-desc->tables.o_r));
|
|
desc->tables.om[mx+my*desc->tables.o_w] = d>=1 ? base : d<=0 ? 0 : (d*base + .5);
|
|
}
|
|
}
|
|
|
|
// outline table:
|
|
for(i=0;i<256;i++){
|
|
for(mx=0;mx<desc->tables.o_size;mx++) *(omtp++) = (i*desc->tables.om[mx] + (base/2))/base;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef USE_ICONV
|
|
/* decode from 'encoding' to unicode */
|
|
static FT_ULong decode_char(iconv_t *cd, char c) {
|
|
FT_ULong o;
|
|
char *inbuf = &c;
|
|
char *outbuf = (char*)&o;
|
|
size_t inbytesleft = 1;
|
|
size_t outbytesleft = sizeof(FT_ULong);
|
|
|
|
iconv(*cd, &inbuf, &inbytesleft, &outbuf, &outbytesleft);
|
|
|
|
/* convert unicode BigEndian -> MachineEndian */
|
|
o = be2me_32(o);
|
|
|
|
// if (count==-1) o = 0; // not OK, at least my iconv() returns E2BIG for all
|
|
if (outbytesleft!=0) o = 0;
|
|
|
|
/* we don't want control characters */
|
|
if (o>=0x7f && o<0xa0) o = 0;
|
|
return o;
|
|
}
|
|
|
|
static int prepare_charset(char *charmap, char *encoding, FT_ULong *charset, FT_ULong *charcodes) {
|
|
FT_ULong i;
|
|
int count = 0;
|
|
int charset_size;
|
|
iconv_t cd;
|
|
|
|
// check if ucs-4 is available
|
|
cd = iconv_open(charmap, charmap);
|
|
if (cd==(iconv_t)-1) {
|
|
mp_msg(MSGT_OSD, MSGL_ERR, "iconv doesn't know %s encoding. Use the source!\n", charmap);
|
|
return -1;
|
|
}
|
|
|
|
iconv_close(cd);
|
|
|
|
cd = iconv_open(charmap, encoding);
|
|
if (cd==(iconv_t)-1) {
|
|
mp_msg(MSGT_OSD, MSGL_ERR, "Unsupported encoding `%s', use iconv --list to list character sets known on your system.\n", encoding);
|
|
return -1;
|
|
}
|
|
|
|
charset_size = 256 - first_char;
|
|
for (i = 0; i<charset_size; ++i) {
|
|
charcodes[count] = i+first_char;
|
|
charset[count] = decode_char(&cd, i+first_char);
|
|
if (charset[count]!=0) ++count;
|
|
}
|
|
charcodes[count] = charset[count] = 0; ++count;
|
|
charset_size = count;
|
|
|
|
iconv_close(cd);
|
|
if (charset_size==0) {
|
|
mp_msg(MSGT_OSD, MSGL_ERR, "No characters to render!\n");
|
|
return -1;
|
|
}
|
|
|
|
return charset_size;
|
|
}
|
|
|
|
static int prepare_charset_unicode(FT_Face face, FT_ULong *charset, FT_ULong *charcodes) {
|
|
#ifdef HAVE_FREETYPE21
|
|
FT_ULong charcode;
|
|
#else
|
|
int j;
|
|
#endif
|
|
FT_UInt gindex;
|
|
int i;
|
|
|
|
if (face->charmap==NULL || face->charmap->encoding!=ft_encoding_unicode) {
|
|
WARNING("Unicode charmap not available for this font. Very bad!");
|
|
return -1;
|
|
}
|
|
#ifdef HAVE_FREETYPE21
|
|
i = 0;
|
|
charcode = FT_Get_First_Char( face, &gindex );
|
|
while (gindex != 0) {
|
|
if (charcode < 65536 && charcode >= 33) { // sanity check
|
|
charset[i] = charcode;
|
|
charcodes[i] = 0;
|
|
i++;
|
|
}
|
|
charcode = FT_Get_Next_Char( face, charcode, &gindex );
|
|
}
|
|
#else
|
|
// for FT < 2.1 we have to use brute force enumeration
|
|
i = 0;
|
|
for (j = 33; j < 65536; j++) {
|
|
gindex = FT_Get_Char_Index(face, j);
|
|
if (gindex > 0) {
|
|
charset[i] = j;
|
|
charcodes[i] = 0;
|
|
i++;
|
|
}
|
|
}
|
|
#endif
|
|
mp_msg(MSGT_OSD, MSGL_V, "Unicode font: %d glyphs.\n", i);
|
|
|
|
return i;
|
|
}
|
|
#endif
|
|
|
|
static font_desc_t* init_font_desc(void)
|
|
{
|
|
font_desc_t *desc;
|
|
int i;
|
|
|
|
desc = malloc(sizeof(font_desc_t));
|
|
if(!desc) return NULL;
|
|
memset(desc,0,sizeof(font_desc_t));
|
|
|
|
desc->dynamic = 1;
|
|
|
|
/* setup sane defaults */
|
|
desc->name = NULL;
|
|
desc->fpath = NULL;
|
|
|
|
desc->face_cnt = 0;
|
|
desc->charspace = 0;
|
|
desc->spacewidth = 0;
|
|
desc->height = 0;
|
|
desc->max_width = 0;
|
|
desc->max_height = 0;
|
|
|
|
desc->tables.g = NULL;
|
|
desc->tables.gt2 = NULL;
|
|
desc->tables.om = NULL;
|
|
desc->tables.omt = NULL;
|
|
desc->tables.tmp = NULL;
|
|
|
|
for(i = 0; i < 65536; i++)
|
|
desc->start[i] = desc->width[i] = desc->font[i] = -1;
|
|
for(i = 0; i < 16; i++)
|
|
desc->pic_a[i] = desc->pic_b[i] = NULL;
|
|
|
|
return desc;
|
|
}
|
|
|
|
void free_font_desc(font_desc_t *desc)
|
|
{
|
|
int i;
|
|
|
|
if (!desc) return;
|
|
|
|
// if (!desc->dynamic) return; // some vo_aa crap, better leaking than crashing
|
|
|
|
if (desc->name) free(desc->name);
|
|
if (desc->fpath) free(desc->fpath);
|
|
|
|
for(i = 0; i < 16; i++) {
|
|
if (desc->pic_a[i]) {
|
|
if (desc->pic_a[i]->bmp) free(desc->pic_a[i]->bmp);
|
|
if (desc->pic_a[i]->pal) free(desc->pic_a[i]->pal);
|
|
free (desc->pic_a[i]);
|
|
}
|
|
if (desc->pic_b[i]) {
|
|
if (desc->pic_b[i]->bmp) free(desc->pic_b[i]->bmp);
|
|
if (desc->pic_b[i]->pal) free(desc->pic_b[i]->pal);
|
|
free (desc->pic_b[i]);
|
|
}
|
|
}
|
|
|
|
if (desc->tables.g) free(desc->tables.g);
|
|
if (desc->tables.gt2) free(desc->tables.gt2);
|
|
if (desc->tables.om) free(desc->tables.om);
|
|
if (desc->tables.omt) free(desc->tables.omt);
|
|
if (desc->tables.tmp) free(desc->tables.tmp);
|
|
|
|
for(i = 0; i < desc->face_cnt; i++) {
|
|
FT_Done_Face(desc->faces[i]);
|
|
}
|
|
|
|
free(desc);
|
|
}
|
|
|
|
static int load_sub_face(const char *name, FT_Face *face)
|
|
{
|
|
int err = -1;
|
|
|
|
if (name) err = FT_New_Face(library, name, 0, face);
|
|
|
|
if (err) {
|
|
char *font_file = get_path("subfont.ttf");
|
|
err = FT_New_Face(library, font_file, 0, face);
|
|
free(font_file);
|
|
if (err) {
|
|
err = FT_New_Face(library, MPLAYER_DATADIR "/subfont.ttf", 0, face);
|
|
if (err) {
|
|
mp_msg(MSGT_OSD, MSGL_ERR, "New_Face failed. Maybe the font path is wrong.\nPlease supply the text font file (~/.mplayer/subfont.ttf).\n" );
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
return err;
|
|
}
|
|
|
|
static int load_osd_face(FT_Face *face)
|
|
{
|
|
if ( FT_New_Memory_Face(library, osd_font_pfb, sizeof(osd_font_pfb), 0, face) ) {
|
|
mp_msg(MSGT_OSD, MSGL_ERR, "New_Memory_Face failed..\n");
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int kerning(font_desc_t *desc, int prevc, int c)
|
|
{
|
|
FT_Vector kern;
|
|
|
|
if (!vo_font->dynamic) return 0;
|
|
if (prevc < 0 || c < 0) return 0;
|
|
if (desc->font[prevc] != desc->font[c]) return 0;
|
|
if (desc->font[prevc] == -1 || desc->font[c] == -1) return 0;
|
|
FT_Get_Kerning(desc->faces[desc->font[c]],
|
|
desc->glyph_index[prevc], desc->glyph_index[c],
|
|
ft_kerning_default, &kern);
|
|
|
|
// fprintf(stderr, "kern: %c %c %d\n", prevc, c, f266ToInt(kern.x));
|
|
|
|
return f266ToInt(kern.x);
|
|
}
|
|
|
|
font_desc_t* read_font_desc_ft(const char *fname, int movie_width, int movie_height)
|
|
{
|
|
font_desc_t *desc = NULL;
|
|
|
|
FT_Face face;
|
|
|
|
FT_ULong *my_charset = malloc(MAX_CHARSET_SIZE * sizeof(FT_ULong)); /* characters we want to render; Unicode */
|
|
FT_ULong *my_charcodes = malloc(MAX_CHARSET_SIZE * sizeof(FT_ULong)); /* character codes in 'encoding' */
|
|
|
|
char *charmap = "ucs-4";
|
|
int err;
|
|
int charset_size;
|
|
int i, j;
|
|
int unicode;
|
|
|
|
float movie_size;
|
|
|
|
float subtitle_font_ppem;
|
|
float osd_font_ppem;
|
|
|
|
if (my_charset == NULL || my_charcodes == NULL) {
|
|
mp_msg(MSGT_OSD, MSGL_ERR, "subtitle font: malloc failed.\n");
|
|
goto err_out;
|
|
}
|
|
|
|
switch (subtitle_autoscale) {
|
|
case 1:
|
|
movie_size = movie_height;
|
|
break;
|
|
case 2:
|
|
movie_size = movie_width;
|
|
break;
|
|
case 3:
|
|
movie_size = sqrt(movie_height*movie_height+movie_width*movie_width);
|
|
break;
|
|
default:
|
|
movie_size = 100;
|
|
break;
|
|
}
|
|
|
|
subtitle_font_ppem = movie_size*text_font_scale_factor/100.0;
|
|
osd_font_ppem = movie_size*osd_font_scale_factor/100.0;
|
|
|
|
if (subtitle_font_ppem < 5) subtitle_font_ppem = 5;
|
|
if (osd_font_ppem < 5) osd_font_ppem = 5;
|
|
|
|
if (subtitle_font_ppem > 128) subtitle_font_ppem = 128;
|
|
if (osd_font_ppem > 128) osd_font_ppem = 128;
|
|
|
|
if ((subtitle_font_encoding == NULL)
|
|
|| (strcasecmp(subtitle_font_encoding, "unicode") == 0)) {
|
|
unicode = 1;
|
|
} else {
|
|
unicode = 0;
|
|
}
|
|
|
|
desc = init_font_desc();
|
|
if(!desc) goto err_out;
|
|
|
|
// t=GetTimer();
|
|
|
|
/* generate the subtitle font */
|
|
err = load_sub_face(fname, &face);
|
|
if (err) {
|
|
mp_msg(MSGT_OSD, MSGL_WARN, "subtitle font: load_sub_face failed.\n");
|
|
goto gen_osd;
|
|
}
|
|
desc->face_cnt++;
|
|
|
|
#ifdef USE_ICONV
|
|
if (unicode) {
|
|
charset_size = prepare_charset_unicode(face, my_charset, my_charcodes);
|
|
} else {
|
|
if (subtitle_font_encoding) {
|
|
charset_size = prepare_charset(charmap, subtitle_font_encoding, my_charset, my_charcodes);
|
|
} else {
|
|
charset_size = prepare_charset(charmap, "iso-8859-1", my_charset, my_charcodes);
|
|
}
|
|
}
|
|
|
|
if (charset_size < 0) {
|
|
mp_msg(MSGT_OSD, MSGL_ERR, "subtitle font: prepare_charset failed.\n");
|
|
goto err_out;
|
|
}
|
|
#else
|
|
goto err_out;
|
|
#endif
|
|
|
|
// fprintf(stderr, "fg: prepare t = %lf\n", GetTimer()-t);
|
|
|
|
err = prepare_font(desc, face, subtitle_font_ppem, desc->face_cnt-1,
|
|
charset_size, my_charset, my_charcodes, unicode,
|
|
subtitle_font_thickness, subtitle_font_radius);
|
|
|
|
if (err) {
|
|
mp_msg(MSGT_OSD, MSGL_ERR, "Cannot prepare subtitle font.\n");
|
|
goto err_out;
|
|
}
|
|
|
|
gen_osd:
|
|
|
|
/* generate the OSD font */
|
|
err = load_osd_face(&face);
|
|
if (err) {
|
|
goto err_out;
|
|
}
|
|
desc->face_cnt++;
|
|
|
|
err = prepare_font(desc, face, osd_font_ppem, desc->face_cnt-1,
|
|
OSD_CHARSET_SIZE, osd_charset, osd_charcodes, 0,
|
|
subtitle_font_thickness, subtitle_font_radius);
|
|
|
|
if (err) {
|
|
mp_msg(MSGT_OSD, MSGL_ERR, "Cannot prepare OSD font.\n");
|
|
goto err_out;
|
|
}
|
|
|
|
err = generate_tables(desc, subtitle_font_thickness, subtitle_font_radius);
|
|
|
|
if (err) {
|
|
mp_msg(MSGT_OSD, MSGL_ERR, "Cannot generate tables.\n");
|
|
goto err_out;
|
|
}
|
|
|
|
// final cleanup
|
|
desc->font[' ']=-1;
|
|
desc->width[' ']=desc->spacewidth;
|
|
|
|
j = '_';
|
|
if (desc->font[j] < 0) j = '?';
|
|
if (desc->font[j] < 0) j = ' ';
|
|
render_one_glyph(desc, j);
|
|
for(i = 0; i < 65536; i++) {
|
|
if (desc->font[i] < 0 && i != ' ') {
|
|
desc->start[i] = desc->start[j];
|
|
desc->width[i] = desc->width[j];
|
|
desc->font[i] = desc->font[j];
|
|
}
|
|
}
|
|
free(my_charset);
|
|
free(my_charcodes);
|
|
return desc;
|
|
|
|
err_out:
|
|
if (desc)
|
|
free_font_desc(desc);
|
|
free(my_charset);
|
|
free(my_charcodes);
|
|
return NULL;
|
|
}
|
|
|
|
int init_freetype(void)
|
|
{
|
|
int err;
|
|
|
|
/* initialize freetype */
|
|
err = FT_Init_FreeType(&library);
|
|
if (err) {
|
|
mp_msg(MSGT_OSD, MSGL_ERR, "Init_FreeType failed.\n");
|
|
return -1;
|
|
}
|
|
mp_msg(MSGT_OSD, MSGL_V, "init_freetype\n");
|
|
using_freetype = 1;
|
|
return 0;
|
|
}
|
|
|
|
int done_freetype(void)
|
|
{
|
|
int err;
|
|
|
|
if (!using_freetype)
|
|
return 0;
|
|
|
|
err = FT_Done_FreeType(library);
|
|
if (err) {
|
|
mp_msg(MSGT_OSD, MSGL_ERR, "FT_Done_FreeType failed.\n");
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void load_font_ft(int width, int height)
|
|
{
|
|
#ifdef HAVE_FONTCONFIG
|
|
FcPattern *fc_pattern;
|
|
FcPattern *fc_pattern2;
|
|
FcChar8 *s;
|
|
FcBool scalable;
|
|
#endif
|
|
vo_image_width = width;
|
|
vo_image_height = height;
|
|
|
|
// protection against vo_aa font hacks
|
|
if (vo_font && !vo_font->dynamic) return;
|
|
|
|
if (vo_font) free_font_desc(vo_font);
|
|
|
|
#ifdef HAVE_FONTCONFIG
|
|
if (font_fontconfig)
|
|
{
|
|
if (!font_name)
|
|
font_name = strdup("sans-serif");
|
|
FcInit();
|
|
fc_pattern = FcNameParse(font_name);
|
|
FcConfigSubstitute(0, fc_pattern, FcMatchPattern);
|
|
FcDefaultSubstitute(fc_pattern);
|
|
fc_pattern2 = fc_pattern;
|
|
fc_pattern = FcFontMatch(0, fc_pattern, 0);
|
|
FcPatternDestroy(fc_pattern2);
|
|
FcPatternGetBool(fc_pattern, FC_SCALABLE, 0, &scalable);
|
|
if (scalable != FcTrue) {
|
|
FcPatternDestroy(fc_pattern);
|
|
fc_pattern = FcNameParse("sans-serif");
|
|
FcConfigSubstitute(0, fc_pattern, FcMatchPattern);
|
|
FcDefaultSubstitute(fc_pattern);
|
|
fc_pattern2 = fc_pattern;
|
|
fc_pattern = FcFontMatch(0, fc_pattern, 0);
|
|
FcPatternDestroy(fc_pattern2);
|
|
}
|
|
// s doesn't need to be freed according to fontconfig docs
|
|
FcPatternGetString(fc_pattern, FC_FILE, 0, &s);
|
|
vo_font=read_font_desc_ft(s, width, height);
|
|
FcPatternDestroy(fc_pattern);
|
|
}
|
|
else
|
|
#endif
|
|
vo_font=read_font_desc_ft(font_name, width, height);
|
|
}
|