1 |
#include <math.h> |
2 |
#include "../config.h" |
3 |
#include "rxvt.h" |
4 |
|
5 |
#if HAVE_IMG |
6 |
|
7 |
#define float_to_component(d) ((d) * 65535.99) |
8 |
|
9 |
rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int width, int height) |
10 |
: s(screen), w(width), h(height), format(format), shared(false) |
11 |
{ |
12 |
pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth); |
13 |
} |
14 |
|
15 |
rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int width, int height, Pixmap pixmap) |
16 |
: s(screen), pm(pixmap), w(width), h(height), format(format), shared(false) |
17 |
{ |
18 |
} |
19 |
|
20 |
rxvt_img * |
21 |
rxvt_img::new_from_file (rxvt_screen *s, const char *filename) |
22 |
{ |
23 |
GError *err = 0; |
24 |
GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err); |
25 |
|
26 |
if (!pb) |
27 |
rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message); |
28 |
|
29 |
rxvt_img *img = new rxvt_img ( |
30 |
s, |
31 |
XRenderFindStandardFormat (s->display->dpy, gdk_pixbuf_get_has_alpha (pb) ? PictStandardARGB32 : PictStandardRGB24), |
32 |
gdk_pixbuf_get_width (pb), |
33 |
gdk_pixbuf_get_height (pb) |
34 |
); |
35 |
|
36 |
img->render_pixbuf (pb, 0, 0, img->w, img->h, 0, 0); |
37 |
|
38 |
return img; |
39 |
} |
40 |
|
41 |
rxvt_img::~rxvt_img () |
42 |
{ |
43 |
if (!shared) |
44 |
XFreePixmap (s->display->dpy, pm); |
45 |
} |
46 |
|
47 |
void |
48 |
rxvt_img::unshare () |
49 |
{ |
50 |
if (!shared) |
51 |
return; |
52 |
|
53 |
rxvt_img *img = clone (); |
54 |
|
55 |
::swap (pm , img->pm); |
56 |
::swap (shared, img->shared); |
57 |
|
58 |
delete img; |
59 |
} |
60 |
|
61 |
void |
62 |
rxvt_img::fill (const rxvt_color &c) |
63 |
{ |
64 |
XGCValues gcv; |
65 |
gcv.foreground = c; |
66 |
GC gc = XCreateGC (s->display->dpy, pm, GCForeground, &gcv); |
67 |
XFillRectangle (s->display->dpy, pm, gc, 0, 0, w, h); |
68 |
XFreeGC (s->display->dpy, gc); |
69 |
} |
70 |
|
71 |
static void |
72 |
get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params) |
73 |
{ |
74 |
double sigma = radius / 2.0; |
75 |
double scale = sqrt (2.0 * M_PI) * sigma; |
76 |
double sum = 0.0; |
77 |
|
78 |
for (int i = 0; i < width; i++) |
79 |
{ |
80 |
double x = i - width / 2; |
81 |
kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale; |
82 |
sum += kernel[i]; |
83 |
} |
84 |
|
85 |
params[0] = XDoubleToFixed (width); |
86 |
params[1] = XDoubleToFixed (1); |
87 |
|
88 |
for (int i = 0; i < width; i++) |
89 |
params[i+2] = XDoubleToFixed (kernel[i] / sum); |
90 |
} |
91 |
|
92 |
void |
93 |
rxvt_img::blur (int rh, int rv) |
94 |
{ |
95 |
if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV)) |
96 |
return; |
97 |
|
98 |
Display *dpy = s->display->dpy; |
99 |
int size = max (rh, rv) * 2 + 1; |
100 |
double *kernel = (double *)malloc (size * sizeof (double)); |
101 |
XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); |
102 |
|
103 |
XRenderPictureAttributes pa; |
104 |
|
105 |
pa.repeat = RepeatPad; |
106 |
Picture src = XRenderCreatePicture (dpy, pm , format, CPRepeat, &pa); |
107 |
Pixmap tmp = XCreatePixmap (dpy, pm, w, h, format->depth); |
108 |
Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa); |
109 |
XFreePixmap (dpy, tmp); |
110 |
|
111 |
if (kernel && params) |
112 |
{ |
113 |
size = rh * 2 + 1; |
114 |
get_gaussian_kernel (rh, size, kernel, params); |
115 |
|
116 |
XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2); |
117 |
XRenderComposite (dpy, |
118 |
PictOpSrc, |
119 |
src, |
120 |
None, |
121 |
dst, |
122 |
0, 0, |
123 |
0, 0, |
124 |
0, 0, |
125 |
w, h); |
126 |
|
127 |
::swap (src, dst); |
128 |
|
129 |
size = rv * 2 + 1; |
130 |
get_gaussian_kernel (rv, size, kernel, params); |
131 |
::swap (params[0], params[1]); |
132 |
|
133 |
XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2); |
134 |
XRenderComposite (dpy, |
135 |
PictOpSrc, |
136 |
src, |
137 |
None, |
138 |
dst, |
139 |
0, 0, |
140 |
0, 0, |
141 |
0, 0, |
142 |
w, h); |
143 |
} |
144 |
|
145 |
free (kernel); |
146 |
free (params); |
147 |
XRenderFreePicture (dpy, src); |
148 |
XRenderFreePicture (dpy, dst); |
149 |
} |
150 |
|
151 |
static Picture |
152 |
create_xrender_mask (Display *dpy, Drawable drawable, Bool argb) |
153 |
{ |
154 |
Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8); |
155 |
|
156 |
XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8); |
157 |
XRenderPictureAttributes pa; |
158 |
pa.repeat = True; |
159 |
Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa); |
160 |
|
161 |
XFreePixmap (dpy, pixmap); |
162 |
|
163 |
return mask; |
164 |
} |
165 |
|
166 |
void |
167 |
rxvt_img::brightness (double r, double g, double b, double a) |
168 |
{ |
169 |
Display *dpy = s->display->dpy; |
170 |
Picture src = create_xrender_mask (dpy, pm, True); |
171 |
Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
172 |
|
173 |
XRenderColor mask_c; |
174 |
mask_c.red = float_to_component (r); |
175 |
mask_c.green = float_to_component (g); |
176 |
mask_c.blue = float_to_component (b); |
177 |
mask_c.alpha = float_to_component (a); |
178 |
XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1); |
179 |
|
180 |
XRenderComposite (dpy, PictOpAdd, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
181 |
} |
182 |
|
183 |
void |
184 |
rxvt_img::contrast (double r, double g, double b, double a) |
185 |
{ |
186 |
if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL)) |
187 |
return; |
188 |
|
189 |
Display *dpy = s->display->dpy; |
190 |
Picture src = create_xrender_mask (dpy, pm, True); |
191 |
Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
192 |
|
193 |
XRenderColor mask_c; |
194 |
mask_c.red = float_to_component (r); |
195 |
mask_c.green = float_to_component (g); |
196 |
mask_c.blue = float_to_component (b); |
197 |
mask_c.alpha = float_to_component (a); |
198 |
XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1); |
199 |
|
200 |
XRenderComposite (dpy, PictOpMultiply, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
201 |
} |
202 |
|
203 |
bool |
204 |
rxvt_img::render_pixbuf (GdkPixbuf *pixbuf, int src_x, int src_y, int width, int height, int dst_x, int dst_y) |
205 |
{ |
206 |
bool argb = format->id == PictStandardARGB32; |
207 |
|
208 |
Display *dpy = s->display->dpy; |
209 |
|
210 |
if (s->visual->c_class != TrueColor) |
211 |
return false; |
212 |
|
213 |
uint32_t red_mask, green_mask, blue_mask, alpha_mask; |
214 |
|
215 |
if (argb) |
216 |
{ |
217 |
red_mask = 0xff << 16; |
218 |
green_mask = 0xff << 8; |
219 |
blue_mask = 0xff; |
220 |
alpha_mask = 0xff << 24; |
221 |
} |
222 |
else |
223 |
{ |
224 |
red_mask = s->visual->red_mask; |
225 |
green_mask = s->visual->green_mask; |
226 |
blue_mask = s->visual->blue_mask; |
227 |
alpha_mask = (uint32_t)format->direct.alphaMask << format->direct.alpha; |
228 |
} |
229 |
|
230 |
int width_r = ecb_popcount32 (red_mask); |
231 |
int width_g = ecb_popcount32 (green_mask); |
232 |
int width_b = ecb_popcount32 (blue_mask); |
233 |
int width_a = ecb_popcount32 (alpha_mask); |
234 |
|
235 |
if (width_r > 8 || width_g > 8 || width_b > 8 || width_a > 8) |
236 |
return false; |
237 |
|
238 |
int sh_r = ecb_ctz32 (red_mask); |
239 |
int sh_g = ecb_ctz32 (green_mask); |
240 |
int sh_b = ecb_ctz32 (blue_mask); |
241 |
int sh_a = ecb_ctz32 (alpha_mask); |
242 |
|
243 |
if (width > 32767 || height > 32767) |
244 |
return false; |
245 |
|
246 |
XImage *ximage = XCreateImage (dpy, s->visual, argb ? 32 : format->depth, ZPixmap, 0, 0, |
247 |
width, height, 32, 0); |
248 |
if (!ximage) |
249 |
return false; |
250 |
|
251 |
if (height > INT_MAX / ximage->bytes_per_line |
252 |
|| !(ximage->data = (char *)malloc (height * ximage->bytes_per_line))) |
253 |
{ |
254 |
XDestroyImage (ximage); |
255 |
return false; |
256 |
} |
257 |
|
258 |
GC gc = XCreateGC (dpy, pm, 0, 0); |
259 |
|
260 |
ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst; |
261 |
|
262 |
int rowstride = gdk_pixbuf_get_rowstride (pixbuf); |
263 |
int channels = gdk_pixbuf_get_n_channels (pixbuf); |
264 |
unsigned char *row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels; |
265 |
char *line = ximage->data; |
266 |
|
267 |
rgba c (0, 0, 0); |
268 |
|
269 |
if (channels == 4 && alpha_mask == 0) |
270 |
{ |
271 |
//pix_colors[Color_bg].get (c); |
272 |
//TODO |
273 |
c.r = 0xffff; c.g = 0xc0c0; c.b = 0xcbcb;//D |
274 |
c.r >>= 8; |
275 |
c.g >>= 8; |
276 |
c.b >>= 8; |
277 |
} |
278 |
|
279 |
for (int y = 0; y < height; y++) |
280 |
{ |
281 |
for (int x = 0; x < width; x++) |
282 |
{ |
283 |
unsigned char *pixel = row + x * channels; |
284 |
uint32_t value; |
285 |
unsigned char r, g, b, a; |
286 |
|
287 |
if (channels == 4) |
288 |
{ |
289 |
a = pixel[3]; |
290 |
r = (pixel[0] * a + c.r * (0xff - a)) / 0xff; |
291 |
g = (pixel[1] * a + c.g * (0xff - a)) / 0xff; |
292 |
b = (pixel[2] * a + c.b * (0xff - a)) / 0xff; |
293 |
} |
294 |
else |
295 |
{ |
296 |
a = 0xff; |
297 |
r = pixel[0]; |
298 |
g = pixel[1]; |
299 |
b = pixel[2]; |
300 |
} |
301 |
|
302 |
value = ((r >> (8 - width_r)) << sh_r) |
303 |
| ((g >> (8 - width_g)) << sh_g) |
304 |
| ((b >> (8 - width_b)) << sh_b) |
305 |
| ((a >> (8 - width_a)) << sh_a); |
306 |
|
307 |
if (ximage->bits_per_pixel == 32) |
308 |
((uint32_t *)line)[x] = value; |
309 |
else |
310 |
XPutPixel (ximage, x, y, value); |
311 |
} |
312 |
|
313 |
row += rowstride; |
314 |
line += ximage->bytes_per_line; |
315 |
} |
316 |
|
317 |
XPutImage (dpy, pm, gc, ximage, 0, 0, dst_x, dst_y, width, height); |
318 |
XDestroyImage (ximage); |
319 |
XFreeGC (dpy, gc); |
320 |
|
321 |
return true; |
322 |
} |
323 |
|
324 |
rxvt_img * |
325 |
rxvt_img::clone () |
326 |
{ |
327 |
GC gc = XCreateGC (s->display->dpy, pm, 0, 0); |
328 |
Pixmap pm2 = XCreatePixmap (s->display->dpy, pm, w, h, format->depth); |
329 |
XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, w, h, 0, 0); |
330 |
XFreeGC (s->display->dpy, gc); |
331 |
return new rxvt_img (s, format, w, h, pm2); |
332 |
} |
333 |
|
334 |
rxvt_img * |
335 |
rxvt_img::transform (int new_width, int new_height, int repeat, double matrix[9]) |
336 |
{ |
337 |
rxvt_img *img = new rxvt_img (s, format, new_width, new_height); |
338 |
|
339 |
Display *dpy = s->display->dpy; |
340 |
XRenderPictureAttributes pa; |
341 |
pa.repeat = repeat; |
342 |
Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
343 |
Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
344 |
|
345 |
XTransform xfrm; |
346 |
|
347 |
for (int i = 0; i < 3; ++i) |
348 |
for (int j = 0; j < 3; ++j) |
349 |
xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]); |
350 |
|
351 |
XRenderSetPictureFilter (dpy, src, "good", 0, 0); |
352 |
XRenderSetPictureTransform (dpy, src, &xfrm); |
353 |
XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height); |
354 |
|
355 |
XRenderFreePicture (dpy, src); |
356 |
XRenderFreePicture (dpy, dst); |
357 |
|
358 |
return img; |
359 |
} |
360 |
|
361 |
rxvt_img * |
362 |
rxvt_img::scale (int new_width, int new_height) |
363 |
{ |
364 |
double matrix[9] = { |
365 |
w / (double)new_width, 0, 0, |
366 |
0, h / (double)new_height, 0, |
367 |
0, 0, 1 |
368 |
}; |
369 |
|
370 |
return transform (new_width, new_height, RepeatNormal, matrix); |
371 |
} |
372 |
|
373 |
rxvt_img * |
374 |
rxvt_img::rotate (int new_width, int new_height, int repeat, int x, int y, double phi) |
375 |
{ |
376 |
double s = sin (phi); |
377 |
double c = cos (phi); |
378 |
|
379 |
double matrix[9] = { |
380 |
c, -s, -c * x + s * y + x, |
381 |
s, c, -s * x - c * y + y, |
382 |
0, 0, 1 |
383 |
}; |
384 |
|
385 |
return transform (new_width, new_height, repeat, matrix); |
386 |
} |
387 |
|
388 |
rxvt_img * |
389 |
rxvt_img::convert_to (XRenderPictFormat *new_format) |
390 |
{ |
391 |
rxvt_img *img = new rxvt_img (s, new_format, w, h); |
392 |
|
393 |
Display *dpy = s->display->dpy; |
394 |
Picture src = XRenderCreatePicture (dpy, pm, format, 0, 0); |
395 |
Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0); |
396 |
|
397 |
XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
398 |
|
399 |
XRenderFreePicture (dpy, src); |
400 |
XRenderFreePicture (dpy, dst); |
401 |
|
402 |
return img; |
403 |
} |
404 |
|
405 |
#endif |
406 |
|