6 static void highlight(RrPixel32
*x
, RrPixel32
*y
, gboolean raised
);
7 static void gradient_solid(RrAppearance
*l
, int w
, int h
);
8 static void gradient_vertical(RrSurface
*sf
, int w
, int h
);
9 static void gradient_horizontal(RrSurface
*sf
, int w
, int h
);
10 static void gradient_diagonal(RrSurface
*sf
, int w
, int h
);
11 static void gradient_crossdiagonal(RrSurface
*sf
, int w
, int h
);
12 static void gradient_pyramid(RrSurface
*sf
, int inw
, int inh
);
14 void RrRender(RrAppearance
*a
, int w
, int h
)
16 RrPixel32
*data
= a
->surface
.pixel_data
;
21 switch (a
->surface
.grad
) {
22 case RR_SURFACE_SOLID
:
23 gradient_solid(a
, w
, h
);
25 case RR_SURFACE_VERTICAL
:
26 gradient_vertical(&a
->surface
, w
, h
);
28 case RR_SURFACE_HORIZONTAL
:
29 gradient_horizontal(&a
->surface
, w
, h
);
31 case RR_SURFACE_DIAGONAL
:
32 gradient_diagonal(&a
->surface
, w
, h
);
34 case RR_SURFACE_CROSS_DIAGONAL
:
35 gradient_crossdiagonal(&a
->surface
, w
, h
);
37 case RR_SURFACE_PYRAMID
:
38 gradient_pyramid(&a
->surface
, w
, h
);
41 g_assert_not_reached(); /* unhandled gradient */
45 if (a
->surface
.relief
== RR_RELIEF_FLAT
&& a
->surface
.border
) {
46 r
= a
->surface
.border_color
->r
;
47 g
= a
->surface
.border_color
->g
;
48 b
= a
->surface
.border_color
->b
;
49 current
= (r
<< RrDefaultRedOffset
)
50 + (g
<< RrDefaultGreenOffset
)
51 + (b
<< RrDefaultBlueOffset
);
52 for (off
= 0, x
= 0; x
< w
; ++x
, off
++) {
53 *(data
+ off
) = current
;
54 *(data
+ off
+ ((h
-1) * w
)) = current
;
56 for (off
= 0, x
= 0; x
< h
; ++x
, off
++) {
57 *(data
+ (off
* w
)) = current
;
58 *(data
+ (off
* w
) + w
- 1) = current
;
62 if (a
->surface
.relief
!= RR_RELIEF_FLAT
) {
63 if (a
->surface
.bevel
== RR_BEVEL_1
) {
64 for (off
= 1, x
= 1; x
< w
- 1; ++x
, off
++)
66 data
+ off
+ (h
-1) * w
,
67 a
->surface
.relief
==RR_RELIEF_RAISED
);
68 for (off
= 0, x
= 0; x
< h
; ++x
, off
++)
69 highlight(data
+ off
* w
,
70 data
+ off
* w
+ w
- 1,
71 a
->surface
.relief
==RR_RELIEF_RAISED
);
74 if (a
->surface
.bevel
== RR_BEVEL_2
) {
75 for (off
= 2, x
= 2; x
< w
- 2; ++x
, off
++)
76 highlight(data
+ off
+ w
,
77 data
+ off
+ (h
-2) * w
,
78 a
->surface
.relief
==RR_RELIEF_RAISED
);
79 for (off
= 1, x
= 1; x
< h
-1; ++x
, off
++)
80 highlight(data
+ off
* w
+ 1,
81 data
+ off
* w
+ w
- 2,
82 a
->surface
.relief
==RR_RELIEF_RAISED
);
87 static void highlight(RrPixel32
*x
, RrPixel32
*y
, gboolean raised
)
99 r
= (*up
>> RrDefaultRedOffset
) & 0xFF;
101 g
= (*up
>> RrDefaultGreenOffset
) & 0xFF;
103 b
= (*up
>> RrDefaultBlueOffset
) & 0xFF;
105 if (r
> 0xFF) r
= 0xFF;
106 if (g
> 0xFF) g
= 0xFF;
107 if (b
> 0xFF) b
= 0xFF;
108 *up
= (r
<< RrDefaultRedOffset
) + (g
<< RrDefaultGreenOffset
)
109 + (b
<< RrDefaultBlueOffset
);
111 r
= (*down
>> RrDefaultRedOffset
) & 0xFF;
112 r
= (r
>> 1) + (r
>> 2);
113 g
= (*down
>> RrDefaultGreenOffset
) & 0xFF;
114 g
= (g
>> 1) + (g
>> 2);
115 b
= (*down
>> RrDefaultBlueOffset
) & 0xFF;
116 b
= (b
>> 1) + (b
>> 2);
117 *down
= (r
<< RrDefaultRedOffset
) + (g
<< RrDefaultGreenOffset
)
118 + (b
<< RrDefaultBlueOffset
);
121 static void create_bevel_colors(RrAppearance
*l
)
126 r
= l
->surface
.primary
->r
;
128 g
= l
->surface
.primary
->g
;
130 b
= l
->surface
.primary
->b
;
132 if (r
> 0xFF) r
= 0xFF;
133 if (g
> 0xFF) g
= 0xFF;
134 if (b
> 0xFF) b
= 0xFF;
135 g_assert(!l
->surface
.bevel_light
);
136 l
->surface
.bevel_light
= RrColorNew(l
->inst
, r
, g
, b
);
139 r
= l
->surface
.primary
->r
;
140 r
= (r
>> 1) + (r
>> 2);
141 g
= l
->surface
.primary
->g
;
142 g
= (g
>> 1) + (g
>> 2);
143 b
= l
->surface
.primary
->b
;
144 b
= (b
>> 1) + (b
>> 2);
145 g_assert(!l
->surface
.bevel_dark
);
146 l
->surface
.bevel_dark
= RrColorNew(l
->inst
, r
, g
, b
);
149 static void gradient_solid(RrAppearance
*l
, int w
, int h
)
153 RrSurface
*sp
= &l
->surface
;
154 int left
= 0, top
= 0, right
= w
- 1, bottom
= h
- 1;
156 pix
= (sp
->primary
->r
<< RrDefaultRedOffset
)
157 + (sp
->primary
->g
<< RrDefaultGreenOffset
)
158 + (sp
->primary
->b
<< RrDefaultBlueOffset
);
160 for (a
= 0; a
< w
; a
++)
161 for (b
= 0; b
< h
; b
++)
162 sp
->pixel_data
[a
+ b
* w
] = pix
;
164 XFillRectangle(RrDisplay(l
->inst
), l
->pixmap
, RrColorGC(sp
->primary
),
167 if (sp
->interlaced
) {
168 for (i
= 0; i
< h
; i
+= 2)
169 XDrawLine(RrDisplay(l
->inst
), l
->pixmap
, RrColorGC(sp
->secondary
),
173 switch (sp
->relief
) {
174 case RR_RELIEF_RAISED
:
176 create_bevel_colors(l
);
180 XDrawLine(RrDisplay(l
->inst
), l
->pixmap
, RrColorGC(sp
->bevel_dark
),
181 left
, bottom
, right
, bottom
);
182 XDrawLine(RrDisplay(l
->inst
), l
->pixmap
, RrColorGC(sp
->bevel_dark
),
183 right
, bottom
, right
, top
);
185 XDrawLine(RrDisplay(l
->inst
), l
->pixmap
,RrColorGC(sp
->bevel_light
),
186 left
, top
, right
, top
);
187 XDrawLine(RrDisplay(l
->inst
), l
->pixmap
,RrColorGC(sp
->bevel_light
),
188 left
, bottom
, left
, top
);
191 XDrawLine(RrDisplay(l
->inst
), l
->pixmap
, RrColorGC(sp
->bevel_dark
),
192 left
+ 1, bottom
- 2, right
- 2, bottom
- 2);
193 XDrawLine(RrDisplay(l
->inst
), l
->pixmap
, RrColorGC(sp
->bevel_dark
),
194 right
- 2, bottom
- 2, right
- 2, top
+ 1);
196 XDrawLine(RrDisplay(l
->inst
), l
->pixmap
,RrColorGC(sp
->bevel_light
),
197 left
+ 1, top
+ 1, right
- 2, top
+ 1);
198 XDrawLine(RrDisplay(l
->inst
), l
->pixmap
,RrColorGC(sp
->bevel_light
),
199 left
+ 1, bottom
- 2, left
+ 1, top
+ 1);
202 g_assert_not_reached(); /* unhandled BevelType */
205 case RR_RELIEF_SUNKEN
:
207 create_bevel_colors(l
);
211 XDrawLine(RrDisplay(l
->inst
), l
->pixmap
,RrColorGC(sp
->bevel_light
),
212 left
, bottom
, right
, bottom
);
213 XDrawLine(RrDisplay(l
->inst
), l
->pixmap
,RrColorGC(sp
->bevel_light
),
214 right
, bottom
, right
, top
);
216 XDrawLine(RrDisplay(l
->inst
), l
->pixmap
, RrColorGC(sp
->bevel_dark
),
217 left
, top
, right
, top
);
218 XDrawLine(RrDisplay(l
->inst
), l
->pixmap
, RrColorGC(sp
->bevel_dark
),
219 left
, bottom
, left
, top
);
222 XDrawLine(RrDisplay(l
->inst
), l
->pixmap
,RrColorGC(sp
->bevel_light
),
223 left
+ 1, bottom
- 2, right
- 2, bottom
- 2);
224 XDrawLine(RrDisplay(l
->inst
), l
->pixmap
,RrColorGC(sp
->bevel_light
),
225 right
- 2, bottom
- 2, right
- 2, top
+ 1);
227 XDrawLine(RrDisplay(l
->inst
), l
->pixmap
, RrColorGC(sp
->bevel_dark
),
228 left
+ 1, top
+ 1, right
- 2, top
+ 1);
229 XDrawLine(RrDisplay(l
->inst
), l
->pixmap
, RrColorGC(sp
->bevel_dark
),
230 left
+ 1, bottom
- 2, left
+ 1, top
+ 1);
234 g_assert_not_reached(); /* unhandled BevelType */
239 XDrawRectangle(RrDisplay(l
->inst
), l
->pixmap
,
240 RrColorGC(sp
->border_color
),
241 left
, top
, right
, bottom
);
245 g_assert_not_reached(); /* unhandled ReliefType */
249 /* * * * * * * * * * * * * * GRADIENT MAGIC WOOT * * * * * * * * * * * * * * */
252 unsigned int color##x[3]; \
253 int len##x, cdelta##x[3], error##x[3] = { 0, 0, 0 }, inc##x[3]; \
254 gboolean bigslope##x[3] /* color slope > 1 */
256 #define SETUP(x, from, to, w) \
259 color##x[0] = from->r; \
260 color##x[1] = from->g; \
261 color##x[2] = from->b; \
263 cdelta##x[0] = to->r - from->r; \
264 cdelta##x[1] = to->g - from->g; \
265 cdelta##x[2] = to->b - from->b; \
267 if (cdelta##x[0] < 0) { \
268 cdelta##x[0] = -cdelta##x[0]; \
272 if (cdelta##x[1] < 0) { \
273 cdelta##x[1] = -cdelta##x[1]; \
277 if (cdelta##x[2] < 0) { \
278 cdelta##x[2] = -cdelta##x[2]; \
282 bigslope##x[0] = cdelta##x[0] > w;\
283 bigslope##x[1] = cdelta##x[1] > w;\
284 bigslope##x[2] = cdelta##x[2] > w
286 #define COLOR_RR(x, c) \
287 c->r = color##x[0]; \
288 c->g = color##x[1]; \
292 ((color##x[0] << RrDefaultRedOffset) + \
293 (color##x[1] << RrDefaultGreenOffset) + \
294 (color##x[2] << RrDefaultBlueOffset))
296 #define INCREMENT(x, i) \
302 for (i = 2; i >= 0; --i) { \
303 if (!cdelta##x[i]) continue; \
305 if (!bigslope##x[i]) { \
306 /* Y (color) is dependant on X */ \
307 error##x[i] += cdelta##x[i]; \
308 if ((error##x[i] << 1) >= len##x) { \
309 color##x[i] += INCREMENT(x, i); \
310 error##x[i] -= len##x; \
313 /* X is dependant on Y (color) */ \
315 color##x[i] += INCREMENT(x, i); \
316 error##x[i] += len##x; \
317 if ((error##x[i] << 1) >= cdelta##x[i]) { \
318 error##x[i] -= cdelta##x[i]; \
326 static void gradient_horizontal(RrSurface
*sf
, int w
, int h
)
329 RrPixel32
*data
= sf
->pixel_data
, *datav
;
333 SETUP(x
, sf
->primary
, sf
->secondary
, w
);
335 for (x
= w
- 1; x
> 0; --x
) { /* 0 -> w-1 */
338 for (y
= h
- 1; y
>= 0; --y
) { /* 0 -> h */
347 for (y
= h
- 1; y
>= 0; --y
) /* 0 -> h */
348 *(data
+ y
* w
) = current
;
351 static void gradient_vertical(RrSurface
*sf
, int w
, int h
)
354 RrPixel32
*data
= sf
->pixel_data
;
358 SETUP(y
, sf
->primary
, sf
->secondary
, h
);
360 for (y
= h
- 1; y
> 0; --y
) { /* 0 -> h-1 */
362 for (x
= w
- 1; x
>= 0; --x
) /* 0 -> w */
368 for (x
= w
- 1; x
>= 0; --x
) /* 0 -> w */
373 static void gradient_diagonal(RrSurface
*sf
, int w
, int h
)
376 RrPixel32
*data
= sf
->pixel_data
;
384 extracorner
.r
= (sf
->primary
->r
+ sf
->secondary
->r
) / 2;
385 extracorner
.g
= (sf
->primary
->g
+ sf
->secondary
->g
) / 2;
386 extracorner
.b
= (sf
->primary
->b
+ sf
->secondary
->b
) / 2;
388 SETUP(lefty
, sf
->primary
, (&extracorner
), h
);
389 SETUP(righty
, (&extracorner
), sf
->secondary
, h
);
391 for (y
= h
- 1; y
> 0; --y
) { /* 0 -> h-1 */
392 COLOR_RR(lefty
, (&left
));
393 COLOR_RR(righty
, (&right
));
395 SETUP(x
, (&left
), (&right
), w
);
397 for (x
= w
- 1; x
> 0; --x
) { /* 0 -> w-1 */
398 *(data
++) = COLOR(x
);
402 *(data
++) = COLOR(x
);
407 COLOR_RR(lefty
, (&left
));
408 COLOR_RR(righty
, (&right
));
410 SETUP(x
, (&left
), (&right
), w
);
412 for (x
= w
- 1; x
> 0; --x
) { /* 0 -> w-1 */
413 *(data
++) = COLOR(x
);
420 static void gradient_crossdiagonal(RrSurface
*sf
, int w
, int h
)
423 RrPixel32
*data
= sf
->pixel_data
;
431 extracorner
.r
= (sf
->primary
->r
+ sf
->secondary
->r
) / 2;
432 extracorner
.g
= (sf
->primary
->g
+ sf
->secondary
->g
) / 2;
433 extracorner
.b
= (sf
->primary
->b
+ sf
->secondary
->b
) / 2;
435 SETUP(lefty
, (&extracorner
), sf
->secondary
, h
);
436 SETUP(righty
, sf
->primary
, (&extracorner
), h
);
438 for (y
= h
- 1; y
> 0; --y
) { /* 0 -> h-1 */
439 COLOR_RR(lefty
, (&left
));
440 COLOR_RR(righty
, (&right
));
442 SETUP(x
, (&left
), (&right
), w
);
444 for (x
= w
- 1; x
> 0; --x
) { /* 0 -> w-1 */
445 *(data
++) = COLOR(x
);
449 *(data
++) = COLOR(x
);
454 COLOR_RR(lefty
, (&left
));
455 COLOR_RR(righty
, (&right
));
457 SETUP(x
, (&left
), (&right
), w
);
459 for (x
= w
- 1; x
> 0; --x
) { /* 0 -> w-1 */
460 *(data
++) = COLOR(x
);
467 static void gradient_pyramid(RrSurface
*sf
, int inw
, int inh
)
469 int x
, y
, w
= (inw
>> 1) + 1, h
= (inh
>> 1) + 1;
470 RrPixel32
*data
= sf
->pixel_data
;
471 RrPixel32
*end
= data
+ inw
*inh
- 1;
480 extracorner
.r
= (sf
->primary
->r
+ sf
->secondary
->r
) / 2;
481 extracorner
.g
= (sf
->primary
->g
+ sf
->secondary
->g
) / 2;
482 extracorner
.b
= (sf
->primary
->b
+ sf
->secondary
->b
) / 2;
484 SETUP(lefty
, (&extracorner
), sf
->secondary
, h
);
485 SETUP(righty
, sf
->primary
, (&extracorner
), h
);
487 for (y
= h
- 1; y
> 0; --y
) { /* 0 -> h-1 */
488 COLOR_RR(lefty
, (&left
));
489 COLOR_RR(righty
, (&right
));
491 SETUP(x
, (&left
), (&right
), w
);
493 for (x
= w
- 1; x
> 0; --x
) { /* 0 -> w-1 */
496 *(data
+inw
-x
) = current
;
498 *(end
-(inw
-x
)) = current
;
504 *(data
+inw
-x
) = current
;
506 *(end
-(inw
-x
)) = current
;
514 COLOR_RR(lefty
, (&left
));
515 COLOR_RR(righty
, (&right
));
517 SETUP(x
, (&left
), (&right
), w
);
519 for (x
= w
- 1; x
> 0; --x
) { /* 0 -> w-1 */
522 *(data
+inw
-x
) = current
;
524 *(end
-(inw
-x
)) = current
;
530 *(data
+inw
-x
) = current
;
532 *(end
-(inw
-x
)) = current
;