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|
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<h1>aglf.c</h1> </div>
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<div class="contents">
<a href="aglf_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* This code is (C) AllegroGL contributors, and double licensed under</span>
<a name="l00002"></a>00002 <span class="comment"> * the GPL and zlib licenses. See gpl.txt or zlib.txt for details.</span>
<a name="l00003"></a>00003 <span class="comment"> */</span>
<a name="l00008"></a>00008 <span class="preprocessor">#include <math.h></span>
<a name="l00009"></a>00009 <span class="preprocessor">#include <string.h></span>
<a name="l00010"></a>00010 <span class="preprocessor">#include <stdio.h></span>
<a name="l00011"></a>00011
<a name="l00012"></a>00012 <span class="preprocessor">#include "allegro.h"</span>
<a name="l00013"></a>00013
<a name="l00014"></a>00014 <span class="preprocessor">#include "alleggl.h"</span>
<a name="l00015"></a>00015 <span class="preprocessor">#include "allglint.h"</span>
<a name="l00016"></a>00016
<a name="l00017"></a>00017 <span class="preprocessor">#ifdef ALLEGRO_MACOSX</span>
<a name="l00018"></a>00018 <span class="preprocessor"></span><span class="preprocessor">#include <OpenGL/glu.h></span>
<a name="l00019"></a>00019 <span class="preprocessor">#else</span>
<a name="l00020"></a>00020 <span class="preprocessor"></span><span class="preprocessor">#include <GL/glu.h></span>
<a name="l00021"></a>00021 <span class="preprocessor">#endif</span>
<a name="l00022"></a>00022 <span class="preprocessor"></span>
<a name="l00023"></a>00023 <span class="preprocessor">#if defined ALLEGRO_WITH_XWINDOWS && !defined ALLEGROGL_GENERIC_DRIVER</span>
<a name="l00024"></a>00024 <span class="preprocessor"></span><span class="preprocessor">#include <xalleg.h></span>
<a name="l00025"></a>00025 <span class="preprocessor">#include <GL/glx.h></span>
<a name="l00026"></a>00026 <span class="preprocessor">#endif</span>
<a name="l00027"></a>00027 <span class="preprocessor"></span>
<a name="l00028"></a>00028 <span class="preprocessor">#define PREFIX_E "agl-font ERROR: "</span>
<a name="l00029"></a>00029 <span class="preprocessor"></span>
<a name="l00030"></a>00030
<a name="l00031"></a>00031
<a name="l00032"></a>00032 <span class="keyword">static</span> <span class="keywordtype">int</span> aglf_font_generation_mode = <a class="code" href="group__Text.html#ga4b45ef558e7934ceaaff146f450ab23f" title="Font generation mode.">AGL_FONT_POLYGONS</a>;
<a name="l00033"></a>00033
<a name="l00034"></a>00034
<a name="l00035"></a>00035 <span class="comment">/* find_range:</span>
<a name="l00036"></a>00036 <span class="comment"> * Searches a font for a specific character.</span>
<a name="l00037"></a>00037 <span class="comment"> */</span>
<a name="l00038"></a>00038 <span class="keyword">static</span> AL_CONST FONT_AGL_DATA *find_range(AL_CONST FONT_AGL_DATA *f, <span class="keywordtype">int</span> c) {
<a name="l00039"></a>00039
<a name="l00040"></a>00040 <span class="keywordflow">while</span> (f) {
<a name="l00041"></a>00041 <span class="keywordflow">if</span> ((c >= f->start) && (c < f->end))
<a name="l00042"></a>00042 <span class="keywordflow">return</span> f;
<a name="l00043"></a>00043
<a name="l00044"></a>00044 f = f->next;
<a name="l00045"></a>00045 }
<a name="l00046"></a>00046
<a name="l00047"></a>00047 <span class="keywordflow">return</span> NULL;
<a name="l00048"></a>00048 }
<a name="l00049"></a>00049
<a name="l00050"></a>00050
<a name="l00051"></a>00051
<a name="l00052"></a>00052 <span class="comment">/* allegro_gl_printf(FONT *f, float x, float y, float z, int color,</span>
<a name="l00053"></a>00053 <span class="comment"> char *format, ...) */</span>
<a name="l00067"></a><a class="code" href="group__Text.html#ga84ecf6d5f5b363d7715e15eca8ebafeb">00067</a> <span class="keywordtype">int</span> <a class="code" href="group__Text.html#ga84ecf6d5f5b363d7715e15eca8ebafeb" title="Equivalent to:">allegro_gl_printf</a>(AL_CONST FONT *f, <span class="keywordtype">float</span> x, <span class="keywordtype">float</span> y, <span class="keywordtype">float</span> z, <span class="keywordtype">int</span> color,
<a name="l00068"></a>00068 AL_CONST <span class="keywordtype">char</span> *format, ...) {
<a name="l00069"></a>00069
<a name="l00070"></a>00070 <span class="preprocessor">#define BUF_SIZE 1024</span>
<a name="l00071"></a>00071 <span class="preprocessor"></span> <span class="keywordtype">char</span> buf[BUF_SIZE];
<a name="l00072"></a>00072 va_list ap;
<a name="l00073"></a>00073
<a name="l00074"></a>00074 <span class="keywordflow">if</span> (!__allegro_gl_valid_context)
<a name="l00075"></a>00075 <span class="keywordflow">return</span> 0;
<a name="l00076"></a>00076
<a name="l00077"></a>00077 <span class="comment">/* Get the string */</span>
<a name="l00078"></a>00078 va_start(ap, format);
<a name="l00079"></a>00079 uvszprintf(buf, BUF_SIZE, format, ap);
<a name="l00080"></a>00080 va_end(ap);
<a name="l00081"></a>00081
<a name="l00082"></a>00082 <span class="preprocessor">#undef BUF_SIZE</span>
<a name="l00083"></a>00083 <span class="preprocessor"></span>
<a name="l00084"></a>00084 <span class="comment">/* Set color */</span>
<a name="l00085"></a>00085 {
<a name="l00086"></a>00086 GLubyte c[4];
<a name="l00087"></a>00087 c[0] = (GLubyte)getr(color);
<a name="l00088"></a>00088 c[1] = (GLubyte)getg(color);
<a name="l00089"></a>00089 c[2] = (GLubyte)getb(color);
<a name="l00090"></a>00090 c[3] = (__allegro_gl_use_alpha && bitmap_color_depth(screen) == 32)
<a name="l00091"></a>00091 ? (GLubyte)geta(color) : 255;
<a name="l00092"></a>00092
<a name="l00093"></a>00093 glColor4ubv(c);
<a name="l00094"></a>00094 }
<a name="l00095"></a>00095
<a name="l00096"></a>00096 <span class="keywordflow">return</span> <a class="code" href="group__Text.html#gab93317445f8a566f8b5632e04fbf8e5b" title="Prints a formatted string (printf style) on the screen.">allegro_gl_printf_ex</a>(f, x, y, z, buf);
<a name="l00097"></a>00097 }
<a name="l00098"></a>00098
<a name="l00099"></a>00099
<a name="l00100"></a>00100
<a name="l00101"></a>00101 <span class="comment">/* allegro_gl_printf_ex(FONT *f, float x, float y, float z,</span>
<a name="l00102"></a>00102 <span class="comment"> * char *format, ...)</span>
<a name="l00103"></a>00103 <span class="comment"> */</span>
<a name="l00169"></a><a class="code" href="group__Text.html#gab93317445f8a566f8b5632e04fbf8e5b">00169</a> <span class="keywordtype">int</span> <a class="code" href="group__Text.html#gab93317445f8a566f8b5632e04fbf8e5b" title="Prints a formatted string (printf style) on the screen.">allegro_gl_printf_ex</a>(AL_CONST FONT *f, <span class="keywordtype">float</span> x, <span class="keywordtype">float</span> y, <span class="keywordtype">float</span> z,
<a name="l00170"></a>00170 AL_CONST <span class="keywordtype">char</span> *format, ...) {
<a name="l00171"></a>00171 <span class="preprocessor"> #define BUF_SIZE 1024</span>
<a name="l00172"></a>00172 <span class="preprocessor"></span> <span class="keywordtype">char</span> buf[BUF_SIZE];
<a name="l00173"></a>00173 va_list ap;
<a name="l00174"></a>00174
<a name="l00175"></a>00175 AL_CONST FONT_AGL_DATA *range = NULL;
<a name="l00176"></a>00176 <span class="keywordtype">int</span> c, pos = 0;
<a name="l00177"></a>00177 <span class="keywordtype">int</span> count = 0;
<a name="l00178"></a>00178 AL_CONST FONT_AGL_DATA *d;
<a name="l00179"></a>00179 GLint vert_order, cull_mode;
<a name="l00180"></a>00180 GLint matrix_mode;
<a name="l00181"></a>00181
<a name="l00182"></a>00182 <span class="keywordtype">int</span> restore_rasterpos = 0;
<a name="l00183"></a>00183 GLuint old_texture_bind = 0;
<a name="l00184"></a>00184 GLfloat old_raster_pos[4];
<a name="l00185"></a>00185
<a name="l00186"></a>00186
<a name="l00187"></a>00187 <span class="keywordflow">if</span> (!__allegro_gl_valid_context)
<a name="l00188"></a>00188 <span class="keywordflow">return</span> 0;
<a name="l00189"></a>00189
<a name="l00190"></a>00190 <span class="comment">/* Check arguments */</span>
<a name="l00191"></a>00191 <span class="keywordflow">if</span> (!format || !f) {
<a name="l00192"></a>00192 TRACE(PREFIX_E <span class="stringliteral">"agl_printf: Null parameter\n"</span>);
<a name="l00193"></a>00193 <span class="keywordflow">return</span> 0;
<a name="l00194"></a>00194 }
<a name="l00195"></a>00195
<a name="l00196"></a>00196 <span class="keywordflow">if</span> (f->vtable != font_vtable_agl) {
<a name="l00197"></a>00197 TRACE(PREFIX_E <span class="stringliteral">"agl_printf: Font parameter isn't of the AGL "</span>
<a name="l00198"></a>00198 <span class="stringliteral">"type.\n"</span>);
<a name="l00199"></a>00199 <span class="keywordflow">return</span> 0;
<a name="l00200"></a>00200 }
<a name="l00201"></a>00201
<a name="l00202"></a>00202 d = (AL_CONST FONT_AGL_DATA*)f->data;
<a name="l00203"></a>00203
<a name="l00204"></a>00204 <span class="comment">/* Get the string */</span>
<a name="l00205"></a>00205 va_start(ap, format);
<a name="l00206"></a>00206 uvszprintf(buf, BUF_SIZE, format, ap);
<a name="l00207"></a>00207 va_end(ap);
<a name="l00208"></a>00208
<a name="l00209"></a>00209 <span class="preprocessor">#undef BUF_SIZE</span>
<a name="l00210"></a>00210 <span class="preprocessor"></span>
<a name="l00211"></a>00211 glGetIntegerv(GL_MATRIX_MODE, &matrix_mode);
<a name="l00212"></a>00212 glGetIntegerv(GL_FRONT_FACE, &vert_order);
<a name="l00213"></a>00213 glGetIntegerv(GL_CULL_FACE_MODE, &cull_mode);
<a name="l00214"></a>00214
<a name="l00215"></a>00215 glMatrixMode(GL_MODELVIEW);
<a name="l00216"></a>00216 glPushMatrix();
<a name="l00217"></a>00217
<a name="l00218"></a>00218 glFrontFace(GL_CW);
<a name="l00219"></a>00219 glCullFace(GL_BACK);
<a name="l00220"></a>00220
<a name="l00221"></a>00221 { GLint temp;
<a name="l00222"></a>00222 glGetIntegerv(GL_TEXTURE_BINDING_2D, &temp);
<a name="l00223"></a>00223 old_texture_bind = (GLuint)temp;
<a name="l00224"></a>00224 }
<a name="l00225"></a>00225
<a name="l00226"></a>00226 <span class="keywordflow">if</span> (d->type == <a class="code" href="group__Text.html#ga7ed8fdc1b0065d2fe584b15d69108b1a" title="Indicates that you want fonts to be converted to a bitmap format.">AGL_FONT_TYPE_BITMAP</a>) {
<a name="l00227"></a>00227 glTranslatef(0, 0, -1);
<a name="l00228"></a>00228 glBindTexture(GL_TEXTURE_2D, 0);
<a name="l00229"></a>00229
<a name="l00230"></a>00230 glGetFloatv(GL_CURRENT_RASTER_POSITION, old_raster_pos);
<a name="l00231"></a>00231 glRasterPos2f(x, y);
<a name="l00232"></a>00232 restore_rasterpos = 1;
<a name="l00233"></a>00233 }
<a name="l00234"></a>00234 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (d->type == <a class="code" href="group__Text.html#gaba7b8c941356029687ff4b4340e8b841" title="Indicates that you want fonts to be converted to an outline format.">AGL_FONT_TYPE_OUTLINE</a>) {
<a name="l00235"></a>00235 glTranslatef(x, y, z);
<a name="l00236"></a>00236 glBindTexture(GL_TEXTURE_2D, 0);
<a name="l00237"></a>00237 }
<a name="l00238"></a>00238 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (d->type == <a class="code" href="group__Text.html#ga92bf039bc7b06568273ee17f15cf6671" title="Indicates that you want fonts to be converted to a texture format.">AGL_FONT_TYPE_TEXTURED</a>) {
<a name="l00239"></a>00239 glTranslatef(x, y, z);
<a name="l00240"></a>00240 }
<a name="l00241"></a>00241
<a name="l00242"></a>00242
<a name="l00243"></a>00243 <span class="keywordflow">while</span> ((c = ugetc(buf + pos)) != 0) {
<a name="l00244"></a>00244
<a name="l00245"></a>00245 pos += ucwidth(c);
<a name="l00246"></a>00246
<a name="l00247"></a>00247 <span class="keywordflow">if</span> ((!range) || (c < range->start) || (c >= range->end)) {
<a name="l00248"></a>00248 <span class="comment">/* search for a suitable character range */</span>
<a name="l00249"></a>00249 range = find_range(d, c);
<a name="l00250"></a>00250
<a name="l00251"></a>00251 <span class="keywordflow">if</span> (!range) {
<a name="l00252"></a>00252 range = find_range(d, (c = <span class="charliteral">'^'</span>));
<a name="l00253"></a>00253
<a name="l00254"></a>00254 <span class="keywordflow">if</span> (!range)
<a name="l00255"></a>00255 <span class="keywordflow">continue</span>;
<a name="l00256"></a>00256 }
<a name="l00257"></a>00257 }
<a name="l00258"></a>00258
<a name="l00259"></a>00259 <span class="comment">/* Set up texture */</span>
<a name="l00260"></a>00260 <span class="keywordflow">if</span> (d->type == <a class="code" href="group__Text.html#ga92bf039bc7b06568273ee17f15cf6671" title="Indicates that you want fonts to be converted to a texture format.">AGL_FONT_TYPE_TEXTURED</a>) {
<a name="l00261"></a>00261 glBindTexture(GL_TEXTURE_2D, range->texture);
<a name="l00262"></a>00262 }
<a name="l00263"></a>00263
<a name="l00264"></a>00264 <span class="comment">/* draw the character */</span>
<a name="l00265"></a>00265 c -= range->start;
<a name="l00266"></a>00266 c += range->list_base;
<a name="l00267"></a>00267
<a name="l00268"></a>00268 glCallList(c);
<a name="l00269"></a>00269
<a name="l00270"></a>00270 count++;
<a name="l00271"></a>00271 }
<a name="l00272"></a>00272
<a name="l00273"></a>00273 glPopMatrix();
<a name="l00274"></a>00274
<a name="l00275"></a>00275 glMatrixMode(matrix_mode);
<a name="l00276"></a>00276 glFrontFace(vert_order);
<a name="l00277"></a>00277 glCullFace(cull_mode);
<a name="l00278"></a>00278
<a name="l00279"></a>00279 glBindTexture(GL_TEXTURE_2D, old_texture_bind);
<a name="l00280"></a>00280
<a name="l00281"></a>00281 <span class="keywordflow">if</span> (restore_rasterpos) {
<a name="l00282"></a>00282 glRasterPos4fv(old_raster_pos);
<a name="l00283"></a>00283 }
<a name="l00284"></a>00284
<a name="l00285"></a>00285 <span class="keywordflow">return</span> count;
<a name="l00286"></a>00286 }
<a name="l00287"></a>00287
<a name="l00288"></a>00288
<a name="l00289"></a>00289
<a name="l00290"></a>00290 <span class="preprocessor">#ifndef ALLEGROGL_GENERIC_DRIVER</span>
<a name="l00291"></a>00291 <span class="preprocessor"></span><span class="preprocessor">#ifdef ALLEGRO_WINDOWS</span>
<a name="l00292"></a>00292 <span class="preprocessor"></span>
<a name="l00293"></a>00293 <span class="keyword">static</span> FONT *win_load_system_font(<span class="keywordtype">char</span> *name, <span class="keywordtype">int</span> type, <span class="keywordtype">int</span> style, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h, <span class="keywordtype">float</span> depth, <span class="keywordtype">int</span> start, <span class="keywordtype">int</span> end) {
<a name="l00294"></a>00294
<a name="l00295"></a>00295 HFONT hFont;
<a name="l00296"></a>00296
<a name="l00297"></a>00297 FONT_AGL_DATA *data;
<a name="l00298"></a>00298 FONT *ret;
<a name="l00299"></a>00299
<a name="l00300"></a>00300 ret = malloc(<span class="keyword">sizeof</span>(FONT));
<a name="l00301"></a>00301 <span class="keywordflow">if</span> (!ret) {
<a name="l00302"></a>00302 TRACE(PREFIX_E <span class="stringliteral">"win_load_system_font: Ran out of memory "</span>
<a name="l00303"></a>00303 <span class="stringliteral">"while allocating %i bytes\n"</span>, <span class="keyword">sizeof</span>(FONT));
<a name="l00304"></a>00304 <span class="keywordflow">return</span> NULL;
<a name="l00305"></a>00305 }
<a name="l00306"></a>00306 data = malloc(<span class="keyword">sizeof</span>(FONT_AGL_DATA));
<a name="l00307"></a>00307 <span class="keywordflow">if</span> (!data) {
<a name="l00308"></a>00308 free(ret);
<a name="l00309"></a>00309 TRACE(PREFIX_E <span class="stringliteral">"win_load_system_font: Ran out of memory "</span>
<a name="l00310"></a>00310 <span class="stringliteral">"while allocating %i bytes\n"</span>, <span class="keyword">sizeof</span>(FONT_AGL_DATA));
<a name="l00311"></a>00311 <span class="keywordflow">return</span> NULL;
<a name="l00312"></a>00312 }
<a name="l00313"></a>00313 ret->vtable = font_vtable_agl;
<a name="l00314"></a>00314 ret->data = data;
<a name="l00315"></a>00315
<a name="l00316"></a>00316 data->list_base = glGenLists(end - start);
<a name="l00317"></a>00317 data->start = start;
<a name="l00318"></a>00318 data->end = end;
<a name="l00319"></a>00319 data->next = NULL;
<a name="l00320"></a>00320 data->is_free_chunk = 0;
<a name="l00321"></a>00321
<a name="l00322"></a>00322 <span class="keywordflow">if</span> (type == <a class="code" href="group__Text.html#ga7ed8fdc1b0065d2fe584b15d69108b1a" title="Indicates that you want fonts to be converted to a bitmap format.">AGL_FONT_TYPE_BITMAP</a> || type == <a class="code" href="group__Text.html#gad2ebae17d2548a5befb888f8618f2206" title="Indicates that you don&#39;t really care how a font will be converted.">AGL_FONT_TYPE_DONT_CARE</a>) {
<a name="l00323"></a>00323
<a name="l00324"></a>00324 HDC dc;
<a name="l00325"></a>00325
<a name="l00326"></a>00326 hFont = CreateFont( -h, w,
<a name="l00327"></a>00327 0, 0,
<a name="l00328"></a>00328 (style & <a class="code" href="group__Text.html#gab77d7d2c6ec6d1786472943f7cd814ca" title="Creates a font with bold characters.">AGL_FONT_STYLE_BOLD</a>) ? FW_BOLD
<a name="l00329"></a>00329 : ((style & <a class="code" href="group__Text.html#ga27874c1fb7fdc1e00115bd853c973fc3" title="Creates a font with black (strong bold) characters.">AGL_FONT_STYLE_BLACK</a>) ? FW_BLACK : FW_NORMAL),
<a name="l00330"></a>00330 ((style & <a class="code" href="group__Text.html#ga67c48bf08c2b6cd6cc1a08dec2c7c5ef" title="Creates a font with italicized characters.">AGL_FONT_STYLE_ITALIC</a>) ? TRUE : FALSE),
<a name="l00331"></a>00331 ((style & <a class="code" href="group__Text.html#gae9e4682339d264429ee601c632231c9f" title="Creates a font with underlined characters.">AGL_FONT_STYLE_UNDERLINE</a>) ? TRUE : FALSE),
<a name="l00332"></a>00332 ((style & <a class="code" href="group__Text.html#ga6ba31b9c7866d28b5494fad2577569db" title="Creates a font with striked out characters.">AGL_FONT_STYLE_STRIKEOUT</a>) ? TRUE : FALSE),
<a name="l00333"></a>00333 ANSI_CHARSET,
<a name="l00334"></a>00334 OUT_TT_PRECIS,
<a name="l00335"></a>00335 CLIP_DEFAULT_PRECIS,
<a name="l00336"></a>00336 (style & <a class="code" href="group__Text.html#ga91cc859278878dd4bf200bed7eab4359" title="Creates a font with anti-aliased characters.">AGL_FONT_STYLE_ANTI_ALIASED</a>) ? ANTIALIASED_QUALITY
<a name="l00337"></a>00337 : DEFAULT_QUALITY,
<a name="l00338"></a>00338 FF_DONTCARE | DEFAULT_PITCH,
<a name="l00339"></a>00339 name);
<a name="l00340"></a>00340
<a name="l00341"></a>00341 dc = GetDC(win_get_window());
<a name="l00342"></a>00342
<a name="l00343"></a>00343 SelectObject(dc, hFont);
<a name="l00344"></a>00344
<a name="l00345"></a>00345 wglUseFontBitmaps(dc, start, end - start, data->list_base);
<a name="l00346"></a>00346 data->type = <a class="code" href="group__Text.html#ga7ed8fdc1b0065d2fe584b15d69108b1a" title="Indicates that you want fonts to be converted to a bitmap format.">AGL_FONT_TYPE_BITMAP</a>;
<a name="l00347"></a>00347 data->data = NULL;
<a name="l00348"></a>00348 }
<a name="l00349"></a>00349 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (type == <a class="code" href="group__Text.html#gaba7b8c941356029687ff4b4340e8b841" title="Indicates that you want fonts to be converted to an outline format.">AGL_FONT_TYPE_OUTLINE</a>) {
<a name="l00350"></a>00350 HDC dc;
<a name="l00351"></a>00351
<a name="l00352"></a>00352 GLYPHMETRICSFLOAT *gmf;
<a name="l00353"></a>00353 gmf = malloc(<span class="keyword">sizeof</span>(GLYPHMETRICSFLOAT) * (end - start));
<a name="l00354"></a>00354 memset(gmf, 0, <span class="keyword">sizeof</span>(GLYPHMETRICSFLOAT) * (end - start));
<a name="l00355"></a>00355
<a name="l00356"></a>00356 hFont = CreateFont( -h, w,
<a name="l00357"></a>00357 0, 0,
<a name="l00358"></a>00358 (style & AGL_FONT_STYLE_BOLD) ? FW_BOLD
<a name="l00359"></a>00359 : ((style & AGL_FONT_STYLE_BLACK) ? FW_BLACK : FW_NORMAL),
<a name="l00360"></a>00360 ((style & AGL_FONT_STYLE_ITALIC) ? TRUE : FALSE),
<a name="l00361"></a>00361 ((style & AGL_FONT_STYLE_UNDERLINE) ? TRUE : FALSE),
<a name="l00362"></a>00362 ((style & AGL_FONT_STYLE_STRIKEOUT) ? TRUE : FALSE),
<a name="l00363"></a>00363 ANSI_CHARSET,
<a name="l00364"></a>00364 OUT_TT_PRECIS,
<a name="l00365"></a>00365 CLIP_DEFAULT_PRECIS,
<a name="l00366"></a>00366 (style & <a class="code" href="group__Text.html#ga91cc859278878dd4bf200bed7eab4359" title="Creates a font with anti-aliased characters.">AGL_FONT_STYLE_ANTI_ALIASED</a>) ? ANTIALIASED_QUALITY
<a name="l00367"></a>00367 : DEFAULT_QUALITY,
<a name="l00368"></a>00368 FF_DONTCARE | DEFAULT_PITCH,
<a name="l00369"></a>00369 name);
<a name="l00370"></a>00370
<a name="l00371"></a>00371 dc = GetDC(win_get_window());
<a name="l00372"></a>00372
<a name="l00373"></a>00373 SelectObject(dc, hFont);
<a name="l00374"></a>00374 wglUseFontOutlines(dc, start, end - start, data->list_base,
<a name="l00375"></a>00375 0.0, depth, (aglf_font_generation_mode == <a class="code" href="group__Text.html#ga4b45ef558e7934ceaaff146f450ab23f" title="Font generation mode.">AGL_FONT_POLYGONS</a>)
<a name="l00376"></a>00376 ? WGL_FONT_POLYGONS : WGL_FONT_LINES, gmf);
<a name="l00377"></a>00377
<a name="l00378"></a>00378 data->type = <a class="code" href="group__Text.html#gaba7b8c941356029687ff4b4340e8b841" title="Indicates that you want fonts to be converted to an outline format.">AGL_FONT_TYPE_OUTLINE</a>;
<a name="l00379"></a>00379 data->data = gmf;
<a name="l00380"></a>00380 }
<a name="l00381"></a>00381
<a name="l00382"></a>00382 <span class="keywordflow">return</span> ret;
<a name="l00383"></a>00383 }
<a name="l00384"></a>00384 <span class="preprocessor">#endif</span>
<a name="l00385"></a>00385 <span class="preprocessor"></span>
<a name="l00386"></a>00386
<a name="l00387"></a>00387
<a name="l00388"></a>00388 <span class="preprocessor">#ifdef ALLEGRO_WITH_XWINDOWS</span>
<a name="l00389"></a>00389 <span class="preprocessor"></span><span class="keyword">static</span> FONT *x_load_system_font(<span class="keywordtype">char</span> *name, <span class="keywordtype">int</span> type, <span class="keywordtype">int</span> style, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h,
<a name="l00390"></a>00390 <span class="keywordtype">float</span> depth, <span class="keywordtype">int</span> start, <span class="keywordtype">int</span> end) {
<a name="l00391"></a>00391 FONT_AGL_DATA *data;
<a name="l00392"></a>00392 FONT *ret;
<a name="l00393"></a>00393 XFontStruct *xfont;
<a name="l00394"></a>00394
<a name="l00395"></a>00395 ret = malloc(<span class="keyword">sizeof</span>(FONT));
<a name="l00396"></a>00396 <span class="keywordflow">if</span> (!ret) {
<a name="l00397"></a>00397 TRACE(PREFIX_E <span class="stringliteral">"x_load_system_font: Ran out of memory "</span>
<a name="l00398"></a>00398 <span class="stringliteral">"while allocating %zi bytes\n"</span>, <span class="keyword">sizeof</span>(FONT));
<a name="l00399"></a>00399 <span class="keywordflow">return</span> NULL;
<a name="l00400"></a>00400 }
<a name="l00401"></a>00401 data = malloc(<span class="keyword">sizeof</span>(FONT_AGL_DATA));
<a name="l00402"></a>00402 <span class="keywordflow">if</span> (!data) {
<a name="l00403"></a>00403 free(ret);
<a name="l00404"></a>00404 TRACE(PREFIX_E <span class="stringliteral">"x_load_system_font: Ran out of memory "</span>
<a name="l00405"></a>00405 <span class="stringliteral">"while allocating %zi bytes\n"</span>, <span class="keyword">sizeof</span>(FONT_AGL_DATA));
<a name="l00406"></a>00406 <span class="keywordflow">return</span> NULL;
<a name="l00407"></a>00407 }
<a name="l00408"></a>00408 ret->vtable = font_vtable_agl;
<a name="l00409"></a>00409 ret->data = data;
<a name="l00410"></a>00410
<a name="l00411"></a>00411 data->list_base = glGenLists(end - start);
<a name="l00412"></a>00412 data->start = start;
<a name="l00413"></a>00413 data->end = end;
<a name="l00414"></a>00414 data->next = NULL;
<a name="l00415"></a>00415 data->is_free_chunk = 0;
<a name="l00416"></a>00416
<a name="l00417"></a>00417 <span class="keywordflow">if</span> (type == <a class="code" href="group__Text.html#ga7ed8fdc1b0065d2fe584b15d69108b1a" title="Indicates that you want fonts to be converted to a bitmap format.">AGL_FONT_TYPE_BITMAP</a> || type == <a class="code" href="group__Text.html#gad2ebae17d2548a5befb888f8618f2206" title="Indicates that you don&#39;t really care how a font will be converted.">AGL_FONT_TYPE_DONT_CARE</a>) {
<a name="l00418"></a>00418 <span class="keywordtype">char</span> buf[256], major_type[256], minor_type[2];
<a name="l00419"></a>00419
<a name="l00420"></a>00420 usprintf(major_type, <span class="stringliteral">"medium"</span>);
<a name="l00421"></a>00421 <span class="keywordflow">if</span> (style & AGL_FONT_STYLE_BOLD)
<a name="l00422"></a>00422 usprintf(major_type, <span class="stringliteral">"bold"</span>);
<a name="l00423"></a>00423 minor_type[0] = (style & <a class="code" href="group__Text.html#ga67c48bf08c2b6cd6cc1a08dec2c7c5ef" title="Creates a font with italicized characters.">AGL_FONT_STYLE_ITALIC</a>) ? <span class="charliteral">'i'</span> : <span class="charliteral">'r'</span>;
<a name="l00424"></a>00424 minor_type[1] = <span class="charliteral">'\0'</span>;
<a name="l00425"></a>00425
<a name="l00426"></a>00426 usprintf(buf, <span class="stringliteral">"-*-%s-%s-%s-normal-*-%i-*-*-*-*-*-*-*"</span>, name,
<a name="l00427"></a>00427 major_type, minor_type, h);
<a name="l00428"></a>00428 <span class="comment">/* Load the font */</span>
<a name="l00429"></a>00429 xfont = XLoadQueryFont(_xwin.display, buf);
<a name="l00430"></a>00430 <span class="keywordflow">if</span> (!xfont) {
<a name="l00431"></a>00431 free(ret);
<a name="l00432"></a>00432 free(data);
<a name="l00433"></a>00433 TRACE(PREFIX_E <span class="stringliteral">"x_load_system_font: Failed to load "</span>
<a name="l00434"></a>00434 <span class="stringliteral">"%s\n"</span>, buf);
<a name="l00435"></a>00435 <span class="keywordflow">return</span> NULL;
<a name="l00436"></a>00436 }
<a name="l00437"></a>00437 glXUseXFont(xfont->fid, start, end - start, data->list_base);
<a name="l00438"></a>00438 data->type = <a class="code" href="group__Text.html#ga7ed8fdc1b0065d2fe584b15d69108b1a" title="Indicates that you want fonts to be converted to a bitmap format.">AGL_FONT_TYPE_BITMAP</a>;
<a name="l00439"></a>00439 data->data = NULL;
<a name="l00440"></a>00440 XFreeFont(_xwin.display, xfont);
<a name="l00441"></a>00441 }
<a name="l00442"></a>00442 <span class="keywordflow">else</span> {
<a name="l00443"></a>00443 <span class="comment">/* Not Yet Implemented */</span>
<a name="l00444"></a>00444 <span class="keywordflow">return</span> NULL;
<a name="l00445"></a>00445 }
<a name="l00446"></a>00446
<a name="l00447"></a>00447 <span class="keywordflow">return</span> ret;
<a name="l00448"></a>00448 }
<a name="l00449"></a>00449 <span class="preprocessor">#endif</span>
<a name="l00450"></a>00450 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* ALLEGROGL_GENERIC_DRIVER */</span>
<a name="l00451"></a>00451
<a name="l00452"></a>00452
<a name="l00453"></a>00453
<a name="l00454"></a>00454 <span class="comment">/* void allegro_gl_set_font_generation_mode(int mode) */</span>
<a name="l00469"></a><a class="code" href="group__Text.html#ga62e79ccec5062f1cdadbc225319e9b44">00469</a> <span class="keywordtype">void</span> <a class="code" href="group__Text.html#ga62e79ccec5062f1cdadbc225319e9b44" title="Set the font generation mode for system fonts.">allegro_gl_set_font_generation_mode</a>(<span class="keywordtype">int</span> mode) {
<a name="l00470"></a>00470 aglf_font_generation_mode = mode;
<a name="l00471"></a>00471 <span class="keywordflow">return</span>;
<a name="l00472"></a>00472 }
<a name="l00473"></a>00473
<a name="l00474"></a>00474
<a name="l00475"></a>00475
<a name="l00476"></a>00476 <span class="comment">/* FONT *allegro_gl_load_system_font(char *name, int style, int w, int h) */</span>
<a name="l00485"></a><a class="code" href="group__Text.html#ga5bddcc6c1954665140083928117519de">00485</a> FONT *<a class="code" href="group__Text.html#ga5bddcc6c1954665140083928117519de" title="Short hand for aglf_load_system_font_ex(name, AGL_FONT_TYPE_OUTLINE, style, w, h, 0...">allegro_gl_load_system_font</a>(<span class="keywordtype">char</span> *name, <span class="keywordtype">int</span> style, <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h) {
<a name="l00486"></a>00486
<a name="l00487"></a>00487 <span class="keywordflow">return</span> <a class="code" href="group__Text.html#ga4ad68c54b0183c60cdbf2c7a02dc3157" title="Loads a system font.">allegro_gl_load_system_font_ex</a>(name, <a class="code" href="group__Text.html#gaba7b8c941356029687ff4b4340e8b841" title="Indicates that you want fonts to be converted to an outline format.">AGL_FONT_TYPE_OUTLINE</a>,
<a name="l00488"></a>00488 style, w, h, 0.0f, 32, 256);
<a name="l00489"></a>00489 }
<a name="l00490"></a>00490
<a name="l00491"></a>00491
<a name="l00492"></a>00492
<a name="l00493"></a>00493 <span class="comment">/* FONT *allegro_gl_load_system_font_ex(char *name, int type, int style,</span>
<a name="l00494"></a>00494 <span class="comment"> int w, int h, float depth, int start, int end) */</span>
<a name="l00526"></a><a class="code" href="group__Text.html#ga4ad68c54b0183c60cdbf2c7a02dc3157">00526</a> FONT *<a class="code" href="group__Text.html#ga4ad68c54b0183c60cdbf2c7a02dc3157" title="Loads a system font.">allegro_gl_load_system_font_ex</a>(<span class="keywordtype">char</span> *name, <span class="keywordtype">int</span> type, <span class="keywordtype">int</span> style,
<a name="l00527"></a>00527 <span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h, <span class="keywordtype">float</span> depth, <span class="keywordtype">int</span> start, <span class="keywordtype">int</span> end) {
<a name="l00528"></a>00528
<a name="l00529"></a>00529 FONT *ret = NULL;
<a name="l00530"></a>00530
<a name="l00531"></a>00531 <span class="keywordflow">if</span> (!__allegro_gl_valid_context)
<a name="l00532"></a>00532 <span class="keywordflow">return</span> NULL;
<a name="l00533"></a>00533
<a name="l00534"></a>00534 <span class="keywordflow">if</span> (!name) {
<a name="l00535"></a>00535 TRACE(PREFIX_E <span class="stringliteral">"load_system_font: Nameless font\n"</span>);
<a name="l00536"></a>00536 <span class="keywordflow">return</span> NULL;
<a name="l00537"></a>00537 }
<a name="l00538"></a>00538
<a name="l00539"></a>00539 <span class="comment">/* Load a system font */</span>
<a name="l00540"></a>00540
<a name="l00541"></a>00541 <span class="preprocessor">#ifndef ALLEGROGL_GENERIC_DRIVER</span>
<a name="l00542"></a>00542 <span class="preprocessor"></span><span class="preprocessor">#ifdef ALLEGRO_WINDOWS</span>
<a name="l00543"></a>00543 <span class="preprocessor"></span> ret = win_load_system_font(name, type, style, w, h, depth, start, end);
<a name="l00544"></a>00544 <span class="preprocessor">#elif defined ALLEGRO_UNIX</span>
<a name="l00545"></a>00545 <span class="preprocessor"></span> XLOCK();
<a name="l00546"></a>00546 ret = x_load_system_font(name, type, style, w, h, depth, start, end);
<a name="l00547"></a>00547 XUNLOCK();
<a name="l00548"></a>00548 <span class="preprocessor">#else</span>
<a name="l00549"></a>00549 <span class="preprocessor"></span> <span class="comment">/* Other platform */</span>
<a name="l00550"></a>00550 <span class="preprocessor">#endif</span>
<a name="l00551"></a>00551 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00552"></a>00552 <span class="preprocessor"></span>
<a name="l00553"></a>00553 <span class="keywordflow">return</span> ret;
<a name="l00554"></a>00554 }
<a name="l00555"></a>00555
<a name="l00556"></a>00556
<a name="l00557"></a>00557
<a name="l00573"></a><a class="code" href="group__Text.html#gabcbdd9810f7254cdb105f987ae1e557f">00573</a> <span class="keywordtype">void</span> <a class="code" href="group__Text.html#gabcbdd9810f7254cdb105f987ae1e557f" title="void allegro_gl_destroy_font(FONT *usefont)">allegro_gl_destroy_font</a>(FONT *f) {
<a name="l00574"></a>00574
<a name="l00575"></a>00575 FONT_AGL_DATA *data;
<a name="l00576"></a>00576
<a name="l00577"></a>00577 <span class="keywordflow">if</span> (!f) {
<a name="l00578"></a>00578 <span class="keywordflow">return</span>;
<a name="l00579"></a>00579 }
<a name="l00580"></a>00580 <span class="keywordflow">if</span> (f->vtable != font_vtable_agl) {
<a name="l00581"></a>00581 TRACE(PREFIX_E <span class="stringliteral">"destroy_font: Font is not of AGL type\n"</span>);
<a name="l00582"></a>00582 <span class="keywordflow">return</span>;
<a name="l00583"></a>00583 }
<a name="l00584"></a>00584
<a name="l00585"></a>00585 data = f->data;
<a name="l00586"></a>00586
<a name="l00587"></a>00587 <span class="keywordflow">if</span> (!data) {
<a name="l00588"></a>00588 TRACE(PREFIX_E <span class="stringliteral">"destroy_font: Font is inconsistent\n"</span>);
<a name="l00589"></a>00589 <span class="keywordflow">return</span>;
<a name="l00590"></a>00590 }
<a name="l00591"></a>00591
<a name="l00592"></a>00592 <span class="comment">/* Iterate through every segment of the font */</span>
<a name="l00593"></a>00593 <span class="keywordflow">while</span> (data) {
<a name="l00594"></a>00594 FONT_AGL_DATA *datanext;
<a name="l00595"></a>00595
<a name="l00596"></a>00596 <span class="comment">/* Release all resources taken up by this font */</span>
<a name="l00597"></a>00597 <span class="keywordflow">if</span> (data->type == <a class="code" href="group__Text.html#ga7ed8fdc1b0065d2fe584b15d69108b1a" title="Indicates that you want fonts to be converted to a bitmap format.">AGL_FONT_TYPE_BITMAP</a>
<a name="l00598"></a>00598 || data->type == <a class="code" href="group__Text.html#gaba7b8c941356029687ff4b4340e8b841" title="Indicates that you want fonts to be converted to an outline format.">AGL_FONT_TYPE_OUTLINE</a>
<a name="l00599"></a>00599 || data->type == <a class="code" href="group__Text.html#ga92bf039bc7b06568273ee17f15cf6671" title="Indicates that you want fonts to be converted to a texture format.">AGL_FONT_TYPE_TEXTURED</a>) {
<a name="l00600"></a>00600
<a name="l00601"></a>00601 <span class="keywordflow">if</span> (__allegro_gl_valid_context) {
<a name="l00602"></a>00602 <span class="keywordflow">if</span> (data->list_base)
<a name="l00603"></a>00603 glDeleteLists(data->list_base, data->end - data->start);
<a name="l00604"></a>00604 <span class="keywordflow">if</span> (data->texture)
<a name="l00605"></a>00605 glDeleteTextures(1, &data->texture);
<a name="l00606"></a>00606 }
<a name="l00607"></a>00607 }
<a name="l00608"></a>00608 <span class="keywordflow">if</span> (data->type == <a class="code" href="group__Text.html#gaba7b8c941356029687ff4b4340e8b841" title="Indicates that you want fonts to be converted to an outline format.">AGL_FONT_TYPE_OUTLINE</a>) {
<a name="l00609"></a>00609 <span class="keywordflow">if</span> (data->data)
<a name="l00610"></a>00610 free(data->data);
<a name="l00611"></a>00611 }
<a name="l00612"></a>00612 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (data->type == <a class="code" href="group__Text.html#ga92bf039bc7b06568273ee17f15cf6671" title="Indicates that you want fonts to be converted to a texture format.">AGL_FONT_TYPE_TEXTURED</a>) {
<a name="l00613"></a>00613 <span class="keywordflow">if</span> (data->data)
<a name="l00614"></a>00614 destroy_bitmap(data->data);
<a name="l00615"></a>00615 <span class="keywordflow">if</span> (data->glyph_coords)
<a name="l00616"></a>00616 free(data->glyph_coords);
<a name="l00617"></a>00617 }
<a name="l00618"></a>00618 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (data->type == <a class="code" href="group__Text.html#ga7ed8fdc1b0065d2fe584b15d69108b1a" title="Indicates that you want fonts to be converted to a bitmap format.">AGL_FONT_TYPE_BITMAP</a>) {
<a name="l00619"></a>00619 <span class="keywordflow">if</span> (data->data) {
<a name="l00620"></a>00620 <span class="keywordtype">int</span> i;
<a name="l00621"></a>00621 FONT_GLYPH **gl = data->data;
<a name="l00622"></a>00622 <span class="keywordflow">for</span> (i = 0; i < data->end - data->start; i++) {
<a name="l00623"></a>00623 <span class="keywordflow">if</span> (gl[i])
<a name="l00624"></a>00624 free(gl[i]);
<a name="l00625"></a>00625 }
<a name="l00626"></a>00626 free(gl);
<a name="l00627"></a>00627 }
<a name="l00628"></a>00628 }
<a name="l00629"></a>00629 datanext = data->next;
<a name="l00630"></a>00630
<a name="l00631"></a>00631 <span class="keywordflow">if</span> (data->is_free_chunk)
<a name="l00632"></a>00632 free(data);
<a name="l00633"></a>00633
<a name="l00634"></a>00634 data = datanext;
<a name="l00635"></a>00635 }
<a name="l00636"></a>00636 free(f->data);
<a name="l00637"></a>00637
<a name="l00638"></a>00638 <span class="keywordflow">if</span> (f != font)
<a name="l00639"></a>00639 free(f);
<a name="l00640"></a>00640
<a name="l00641"></a>00641 <span class="keywordflow">return</span>;
<a name="l00642"></a>00642 }
<a name="l00643"></a>00643
<a name="l00644"></a>00644
<a name="l00645"></a>00645
<a name="l00646"></a>00646 <span class="comment">/* size_t allegro_gl_list_font_textures(FONT *f, GLuint *ids, size_t max_num_id) */</span>
<a name="l00689"></a><a class="code" href="group__Text.html#ga70b78c3a523dc9977c222d466edc6a5a">00689</a> <span class="keywordtype">size_t</span> <a class="code" href="group__Text.html#ga70b78c3a523dc9977c222d466edc6a5a" title="List the texture ID of all textures forming the specified font.">allegro_gl_list_font_textures</a>(FONT *f, GLuint *ids, <span class="keywordtype">size_t</span> max_num_id) {
<a name="l00690"></a>00690
<a name="l00691"></a>00691 <span class="keywordtype">size_t</span> num_ids = 0;
<a name="l00692"></a>00692 FONT_AGL_DATA *data;
<a name="l00693"></a>00693
<a name="l00694"></a>00694 <span class="keywordflow">if</span> (!f) {
<a name="l00695"></a>00695 <span class="keywordflow">return</span> 0;
<a name="l00696"></a>00696 }
<a name="l00697"></a>00697 <span class="keywordflow">if</span> (f->vtable != font_vtable_agl) {
<a name="l00698"></a>00698 TRACE(PREFIX_E <span class="stringliteral">"list_font_textures: Font is not of AGL type\n"</span>);
<a name="l00699"></a>00699 <span class="keywordflow">return</span> 0;
<a name="l00700"></a>00700 }
<a name="l00701"></a>00701
<a name="l00702"></a>00702 data = f->data;
<a name="l00703"></a>00703
<a name="l00704"></a>00704 <span class="keywordflow">if</span> (!data) {
<a name="l00705"></a>00705 TRACE(PREFIX_E <span class="stringliteral">"list_font_textures: Font is inconsistent\n"</span>);
<a name="l00706"></a>00706 <span class="keywordflow">return</span> 0;
<a name="l00707"></a>00707 }
<a name="l00708"></a>00708
<a name="l00709"></a>00709 <span class="keywordflow">if</span> (!__allegro_gl_valid_context) {
<a name="l00710"></a>00710 <span class="keywordflow">return</span> 0;
<a name="l00711"></a>00711 }
<a name="l00712"></a>00712
<a name="l00713"></a>00713 <span class="comment">/* Iterate through all font segments */</span>
<a name="l00714"></a>00714 <span class="keywordflow">while</span> (data) {
<a name="l00715"></a>00715 <span class="keywordflow">if</span> (data->texture) {
<a name="l00716"></a>00716 <span class="comment">/* Add the texture ID in the array, if it's not NULL and if there</span>
<a name="l00717"></a>00717 <span class="comment"> * is room.</span>
<a name="l00718"></a>00718 <span class="comment"> */</span>
<a name="l00719"></a>00719 <span class="keywordflow">if</span> (ids && num_ids < max_num_id) {
<a name="l00720"></a>00720 ids[num_ids] = data->texture;
<a name="l00721"></a>00721 }
<a name="l00722"></a>00722 num_ids++;
<a name="l00723"></a>00723 }
<a name="l00724"></a>00724
<a name="l00725"></a>00725 data = data->next;
<a name="l00726"></a>00726 }
<a name="l00727"></a>00727
<a name="l00728"></a>00728 <span class="keywordflow">return</span> num_ids;
<a name="l00729"></a>00729 }
<a name="l00730"></a>00730
</pre></div></div>
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<li class="navelem"><a class="el" href="aglf_8c.html">aglf.c</a> </li>
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