1 /***********************************************************
2 * Artsoft Retro-Game Library *
3 *----------------------------------------------------------*
4 * (c) 1994-2002 Artsoft Entertainment *
6 * Detmolder Strasse 189 *
9 * e-mail: info@artsoft.org *
10 *----------------------------------------------------------*
12 ***********************************************************/
21 /* ========================================================================= */
23 /* ========================================================================= */
25 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
26 static GC font_clip_gc = None;
28 static void InitFontClipmasks()
30 static boolean clipmasks_initialized = FALSE;
31 XGCValues clip_gc_values;
32 unsigned long clip_gc_valuemask;
36 if (gfx.num_fonts == 0 || gfx.font_bitmap_info[0].bitmap == NULL)
39 if (!clipmasks_initialized)
41 for (i=0; i < gfx.num_fonts; i++)
43 gfx.font_bitmap_info[i].clip_mask = NULL;
44 gfx.font_bitmap_info[i].last_num_chars = 0;
47 clipmasks_initialized = TRUE;
50 for (i=0; i < gfx.num_fonts; i++)
52 if (gfx.font_bitmap_info[i].clip_mask)
53 for (j=0; j < gfx.font_bitmap_info[i].last_num_chars; j++)
54 XFreePixmap(display, gfx.font_bitmap_info[i].clip_mask[j]);
55 free(gfx.font_bitmap_info[i].clip_mask);
57 gfx.font_bitmap_info[i].clip_mask = NULL;
58 gfx.font_bitmap_info[i].last_num_chars = 0;
62 XFreeGC(display, font_clip_gc);
65 /* This stuff is needed because X11 (XSetClipOrigin(), to be precise) is
66 often very slow when preparing a masked XCopyArea() for big Pixmaps.
67 To prevent this, create small (tile-sized) mask Pixmaps which will then
68 be set much faster with XSetClipOrigin() and speed things up a lot. */
70 clip_gc_values.graphics_exposures = False;
71 clip_gc_valuemask = GCGraphicsExposures;
72 font_clip_gc = XCreateGC(display, window->drawable,
73 clip_gc_valuemask, &clip_gc_values);
75 /* create graphic context structures needed for clipping */
76 clip_gc_values.graphics_exposures = False;
77 clip_gc_valuemask = GCGraphicsExposures;
78 copy_clipmask_gc = XCreateGC(display,
79 gfx.font_bitmap_info[0].bitmap->clip_mask,
80 clip_gc_valuemask, &clip_gc_values);
82 /* create only those clipping Pixmaps we really need */
83 for (i=0; i < gfx.num_fonts; i++)
85 if (gfx.font_bitmap_info[i].bitmap == NULL)
88 gfx.font_bitmap_info[i].clip_mask =
89 checked_calloc(gfx.font_bitmap_info[i].num_chars * sizeof(Pixmap));
90 gfx.font_bitmap_info[i].last_num_chars = gfx.font_bitmap_info[i].num_chars;
92 for (j=0; j < gfx.font_bitmap_info[i].num_chars; j++)
94 Bitmap *src_bitmap = gfx.font_bitmap_info[i].bitmap;
95 Pixmap src_pixmap = src_bitmap->clip_mask;
96 int xpos = j % gfx.font_bitmap_info[i].num_chars_per_line;
97 int ypos = j / gfx.font_bitmap_info[i].num_chars_per_line;
98 int width = gfx.font_bitmap_info[i].width;
99 int height = gfx.font_bitmap_info[i].height;
100 int src_x = gfx.font_bitmap_info[i].src_x + xpos * width;
101 int src_y = gfx.font_bitmap_info[i].src_y + ypos * height;
103 gfx.font_bitmap_info[i].clip_mask[j] =
104 XCreatePixmap(display, window->drawable, width, height, 1);
106 XCopyArea(display, src_pixmap, gfx.font_bitmap_info[i].clip_mask[j],
107 copy_clipmask_gc, src_x, src_y, width, height, 0, 0);
111 XFreeGC(display, copy_clipmask_gc);
113 #endif /* TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND */
115 void InitFontInfo(struct FontBitmapInfo *font_bitmap_info, int num_fonts,
116 int (*select_font_function)(int))
118 gfx.num_fonts = num_fonts;
119 gfx.font_bitmap_info = font_bitmap_info;
120 gfx.select_font_function = select_font_function;
121 gfx.inverse_text_color = WHITE_PIXEL;
123 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
128 void SetInverseTextColor(Pixel inverse_text_color)
130 gfx.inverse_text_color = inverse_text_color;
133 int getFontWidth(int font_nr)
135 int font_bitmap_id = gfx.select_font_function(font_nr);
137 return gfx.font_bitmap_info[font_bitmap_id].width;
140 int getFontHeight(int font_nr)
142 int font_bitmap_id = gfx.select_font_function(font_nr);
144 return gfx.font_bitmap_info[font_bitmap_id].height;
147 static char getFontCharPosition(int font_nr, char c)
149 int font_bitmap_id = gfx.select_font_function(font_nr);
150 struct FontBitmapInfo *font = &gfx.font_bitmap_info[font_bitmap_id];
151 boolean default_font = (font->num_chars == DEFAULT_NUM_CHARS_PER_FONT);
152 int font_pos = c - 32;
154 /* map some special characters to their ascii values in default font */
156 font_pos = MAP_FONT_ASCII(c) - 32;
158 /* this allows dynamic special characters together with special font */
159 if (font_pos < 0 || font_pos >= font->num_chars)
165 void getFontCharSource(int font_nr, char c, Bitmap **bitmap, int *x, int *y)
167 int font_bitmap_id = gfx.select_font_function(font_nr);
168 struct FontBitmapInfo *font = &gfx.font_bitmap_info[font_bitmap_id];
169 int font_pos = getFontCharPosition(font_nr, c);
171 *bitmap = font->bitmap;
172 *x = font->src_x + (font_pos % font->num_chars_per_line) * font->width;
173 *y = font->src_y + (font_pos / font->num_chars_per_line) * font->height;
176 void DrawInitText(char *text, int ypos, int font_nr)
180 gfx.font_bitmap_info[font_nr].bitmap != NULL)
182 int text_width = strlen(text) * getFontWidth(font_nr);
184 ClearRectangle(window, 0, ypos, video.width, getFontHeight(font_nr));
185 DrawTextExt(window, (video.width - text_width) / 2, ypos, text, font_nr,
191 void DrawTextFCentered(int y, int font_nr, char *format, ...)
193 char buffer[MAX_OUTPUT_LINESIZE + 1];
196 va_start(ap, format);
197 vsprintf(buffer, format, ap);
200 if (strlen(buffer) > MAX_OUTPUT_LINESIZE)
201 Error(ERR_EXIT, "string too long in DrawTextFCentered() -- aborting");
203 DrawText(gfx.sx + (gfx.sxsize - strlen(buffer) * getFontWidth(font_nr)) / 2,
204 gfx.sy + y, buffer, font_nr);
207 void DrawTextF(int x, int y, int font_nr, char *format, ...)
209 char buffer[MAX_OUTPUT_LINESIZE + 1];
212 va_start(ap, format);
213 vsprintf(buffer, format, ap);
216 if (strlen(buffer) > MAX_OUTPUT_LINESIZE)
217 Error(ERR_EXIT, "string too long in DrawTextF() -- aborting");
219 DrawText(gfx.sx + x, gfx.sy + y, buffer, font_nr);
222 void DrawText(int x, int y, char *text, int font_nr)
224 int mask_mode = BLIT_OPAQUE;
226 if (DrawingOnBackground(x, y))
227 mask_mode = BLIT_MASKED;
229 DrawTextExt(drawto, x, y, text, font_nr, mask_mode);
232 redraw_mask |= REDRAW_FIELD;
233 else if (y < gfx.vy || gfx.vy == 0)
234 redraw_mask |= REDRAW_DOOR_1;
237 void DrawTextExt(DrawBuffer *dst_bitmap, int dst_x, int dst_y, char *text,
238 int font_nr, int mask_mode)
240 int font_bitmap_id = gfx.select_font_function(font_nr);
241 struct FontBitmapInfo *font = &gfx.font_bitmap_info[font_bitmap_id];
242 int font_width = getFontWidth(font_nr);
243 int font_height = getFontHeight(font_nr);
244 boolean print_inverse = FALSE;
245 boolean print_inverse_cursor = FALSE;
249 if (font->bitmap == NULL)
252 /* add offset for drawing font characters */
253 dst_x += font->draw_x;
254 dst_y += font->draw_y;
262 print_inverse = TRUE;
263 if (strlen(text) == 1)
264 print_inverse_cursor = TRUE;
269 getFontCharSource(font_nr, c, &src_bitmap, &src_x, &src_y);
271 if (print_inverse) /* special mode for text gadgets */
273 #if defined(TARGET_SDL)
274 /* blit normally (non-masked) */
275 BlitBitmap(src_bitmap, dst_bitmap, src_x, src_y,
276 font_width, font_height, dst_x, dst_y);
278 /* invert character */
279 SDLInvertArea(dst_bitmap, dst_x, dst_y, font_width, font_height,
280 gfx.inverse_text_color);
282 /* first step: draw solid colored rectangle (use "cursor" character) */
283 if (print_inverse_cursor)
285 Bitmap *cursor_bitmap;
286 int cursor_x, cursor_y;
288 getFontCharSource(font_nr, FONT_ASCII_CURSOR, &cursor_bitmap,
289 &cursor_x, &cursor_y);
291 BlitBitmap(cursor_bitmap, dst_bitmap, cursor_x, cursor_y,
292 font_width, font_height, dst_x, dst_y);
295 /* second step: draw masked black rectangle (use "space" character) */
296 SetClipOrigin(src_bitmap, src_bitmap->stored_clip_gc,
297 dst_x - src_x, dst_y - src_y);
298 BlitBitmapMasked(src_bitmap, dst_bitmap, 0, 0,
299 font_width, font_height, dst_x, dst_y);
302 else if (mask_mode == BLIT_MASKED)
304 /* clear font character background */
305 ClearRectangleOnBackground(dst_bitmap, dst_x, dst_y,
306 font_width, font_height);
308 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
309 /* use special font tile clipmasks */
311 int font_pos = getFontCharPosition(font_nr, c);
313 SetClipMask(src_bitmap, font_clip_gc, font->clip_mask[font_pos]);
314 SetClipOrigin(src_bitmap, font_clip_gc, dst_x, dst_y);
317 SetClipOrigin(src_bitmap, src_bitmap->stored_clip_gc,
318 dst_x - src_x, dst_y - src_y);
321 BlitBitmapMasked(src_bitmap, dst_bitmap, src_x, src_y,
322 font_width, font_height, dst_x, dst_y);
324 else /* normal, non-masked font blitting */
326 BlitBitmap(src_bitmap, dst_bitmap, src_x, src_y,
327 font_width, font_height, dst_x, dst_y);