diff options
Diffstat (limited to 'src/sim/cd_truetype.c')
| -rw-r--r-- | src/sim/cd_truetype.c | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/src/sim/cd_truetype.c b/src/sim/cd_truetype.c new file mode 100644 index 0000000..71593c0 --- /dev/null +++ b/src/sim/cd_truetype.c @@ -0,0 +1,181 @@ +/** \file + * \brief Text and Font Simulation using FreeType library. + * + * See Copyright Notice in cd.h + */ + +#include <string.h> +#include <stdlib.h> +#include <memory.h> +#include <stdio.h> + +#include "cd_truetype.h" + +/******************************************* + Inicializa o Rasterizador +********************************************/ +static char *getCdDir(void) +{ + static char *env = NULL; + if (env) return env; + env = getenv("CDDIR"); + if (!env) env = "."; + return env; +} + +#ifdef WIN32 +#include <windows.h> +static int ReadStringKey(HKEY base_key, char* key_name, char* value_name, char* value) +{ + HKEY key; + DWORD max_size = 512; + + if (RegOpenKeyEx(base_key, key_name, 0, KEY_READ, &key) != ERROR_SUCCESS) + return 0; + + if (RegQueryValueEx(key, value_name, NULL, NULL, (LPBYTE)value, &max_size) != ERROR_SUCCESS) + { + RegCloseKey(key); + return 0; + } + + RegCloseKey(key); + return 1; +} + +char* GetFontDir(void) +{ + static char font_dir[512]; + if (!ReadStringKey(HKEY_CURRENT_USER, "Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Shell Folders", "Fonts", font_dir)) + return ""; + else + { + int i, size = (int)strlen(font_dir); + for(i = 0; i < size; i++) + { + if (font_dir[i] == '\\') + font_dir[i] = '/'; + } + return font_dir; + } +} +#endif + +int cdTT_load(cdTT_Text * tt_text, const char *font, int size, double xres, double yres) +{ + char filename[10240]; + FILE *file; /* usado apenas para procurar pelo arquivo */ + FT_Error error; + FT_Face face; + + /* abre arq. no dir. corrente */ + sprintf(filename, "%s.ttf", font); + file = fopen(filename, "r"); + + if (file) + fclose(file); + else + { + /* se nao conseguiu, abre arq. no dir. do cd, */ + sprintf(filename, "%s/%s.ttf", getCdDir(), font); + file = fopen(filename, "r"); + + if (file) + fclose(file); + else + { +#ifdef WIN32 + /* no caso do Windows procura no seu diretorio de fontes. */ + sprintf(filename, "%s/%s.ttf", GetFontDir(), font); + file = fopen(filename, "r"); + + if (file) + fclose(file); + else + return 0; +#else + return 0; +#endif + } + } + + error = FT_New_Face(tt_text->library, filename, 0, &face ); + if (error) + return 0; + + /* char_height is 1/64th of points */ + error = FT_Set_Char_Size(face, 0, size*64, (int)(xres*25.4), (int)(yres*25.4)); + if (error) + { + FT_Done_Face(face); + return 0; + } + + if (tt_text->face && tt_text->face != face) + FT_Done_Face(tt_text->face); + + tt_text->face = face; + + tt_text->ascent = face->size->metrics.ascender >> 6; + tt_text->descent = abs(face->size->metrics.descender >> 6); + tt_text->max_height = face->size->metrics.height >> 6; + tt_text->max_width = face->size->metrics.max_advance >> 6; + + if (!face->charmap) + FT_Set_Charmap(face, face->charmaps[0]); + + return 1; +} + +static void cdTT_checkversion(cdTT_Text* tt_text) +{ + FT_Int major, minor, patch; + FT_Library_Version(tt_text->library, &major, &minor, &patch); + if (major != FREETYPE_MAJOR || + minor != FREETYPE_MINOR || + patch != FREETYPE_PATCH) + { + printf("CD - Canvas Draw: Warning - Different FreeType library used!\n" + " Compiled = %d.%d.%d\n" + " RunTime = %d.%d.%d\n", + FREETYPE_MAJOR, FREETYPE_MINOR, FREETYPE_PATCH, major, minor, patch); + } +} + +/******************************************* + Inicializaccao +********************************************/ +cdTT_Text* cdTT_create(void) +{ + cdTT_Text * tt_text = malloc(sizeof(cdTT_Text)); + memset(tt_text, 0, sizeof(cdTT_Text)); + + FT_Init_FreeType(&tt_text->library); + + cdTT_checkversion(tt_text); + + return tt_text; +} + +/******************************************* + Desaloca Recursos +********************************************/ +void cdTT_free(cdTT_Text * tt_text) +{ + if (tt_text->rgba_data) + free(tt_text->rgba_data); + + if (tt_text->face) + FT_Done_Face(tt_text->face); + + FT_Done_FreeType(tt_text->library); + + free(tt_text); +} + +#ifdef SunOS_OLD +void *memmove( void *dest, const void *src, size_t count ) +{ + return memcpy(dest, src, count); +} +#endif |