| 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_root (rxvt_screen *s) |
| 22 |
{ |
| 23 |
Display *dpy = s->display->dpy; |
| 24 |
unsigned int root_pm_w, root_pm_h; |
| 25 |
Pixmap root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_XROOTPMAP_ID]); |
| 26 |
if (root_pixmap == None) |
| 27 |
root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_ESETROOT_PMAP_ID]); |
| 28 |
|
| 29 |
if (root_pixmap == None) |
| 30 |
return 0; |
| 31 |
|
| 32 |
Window wdummy; |
| 33 |
int idummy; |
| 34 |
unsigned int udummy; |
| 35 |
|
| 36 |
if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pm_w, &root_pm_h, &udummy, &udummy)) |
| 37 |
return 0; |
| 38 |
|
| 39 |
rxvt_img *img = new rxvt_img ( |
| 40 |
s, |
| 41 |
XRenderFindVisualFormat (dpy, DefaultVisual (dpy, s->display->screen)), |
| 42 |
root_pm_w, |
| 43 |
root_pm_h, |
| 44 |
root_pixmap |
| 45 |
); |
| 46 |
|
| 47 |
img->shared = true; |
| 48 |
|
| 49 |
return img; |
| 50 |
} |
| 51 |
|
| 52 |
rxvt_img * |
| 53 |
rxvt_img::new_from_file (rxvt_screen *s, const char *filename) |
| 54 |
{ |
| 55 |
GError *err = 0; |
| 56 |
GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err); |
| 57 |
|
| 58 |
if (!pb) |
| 59 |
rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message); |
| 60 |
|
| 61 |
rxvt_img *img = new rxvt_img ( |
| 62 |
s, |
| 63 |
XRenderFindStandardFormat (s->display->dpy, gdk_pixbuf_get_has_alpha (pb) ? PictStandardARGB32 : PictStandardRGB24), |
| 64 |
gdk_pixbuf_get_width (pb), |
| 65 |
gdk_pixbuf_get_height (pb) |
| 66 |
); |
| 67 |
|
| 68 |
img->render_pixbuf (pb, 0, 0, img->w, img->h, 0, 0); |
| 69 |
|
| 70 |
return img; |
| 71 |
} |
| 72 |
|
| 73 |
rxvt_img::~rxvt_img () |
| 74 |
{ |
| 75 |
if (!shared) |
| 76 |
XFreePixmap (s->display->dpy, pm); |
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} |
| 78 |
|
| 79 |
void |
| 80 |
rxvt_img::unshare () |
| 81 |
{ |
| 82 |
if (!shared) |
| 83 |
return; |
| 84 |
|
| 85 |
rxvt_img *img = clone (); |
| 86 |
|
| 87 |
::swap (pm , img->pm); |
| 88 |
::swap (shared, img->shared); |
| 89 |
|
| 90 |
delete img; |
| 91 |
} |
| 92 |
|
| 93 |
void |
| 94 |
rxvt_img::fill (const rxvt_color &c) |
| 95 |
{ |
| 96 |
XGCValues gcv; |
| 97 |
gcv.foreground = c; |
| 98 |
GC gc = XCreateGC (s->display->dpy, pm, GCForeground, &gcv); |
| 99 |
XFillRectangle (s->display->dpy, pm, gc, 0, 0, w, h); |
| 100 |
XFreeGC (s->display->dpy, gc); |
| 101 |
} |
| 102 |
|
| 103 |
static void |
| 104 |
get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params) |
| 105 |
{ |
| 106 |
double sigma = radius / 2.0; |
| 107 |
double scale = sqrt (2.0 * M_PI) * sigma; |
| 108 |
double sum = 0.0; |
| 109 |
|
| 110 |
for (int i = 0; i < width; i++) |
| 111 |
{ |
| 112 |
double x = i - width / 2; |
| 113 |
kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale; |
| 114 |
sum += kernel[i]; |
| 115 |
} |
| 116 |
|
| 117 |
params[0] = XDoubleToFixed (width); |
| 118 |
params[1] = XDoubleToFixed (1); |
| 119 |
|
| 120 |
for (int i = 0; i < width; i++) |
| 121 |
params[i+2] = XDoubleToFixed (kernel[i] / sum); |
| 122 |
} |
| 123 |
|
| 124 |
rxvt_img * |
| 125 |
rxvt_img::blur (int rh, int rv) |
| 126 |
{ |
| 127 |
if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV)) |
| 128 |
return clone (); |
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|
| 130 |
Display *dpy = s->display->dpy; |
| 131 |
int size = max (rh, rv) * 2 + 1; |
| 132 |
double *kernel = (double *)malloc (size * sizeof (double)); |
| 133 |
XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); |
| 134 |
rxvt_img *img = new rxvt_img (s, format, w, h); |
| 135 |
|
| 136 |
XRenderPictureAttributes pa; |
| 137 |
|
| 138 |
pa.repeat = RepeatPad; |
| 139 |
Picture src = XRenderCreatePicture (dpy, pm , format, CPRepeat, &pa); |
| 140 |
Picture dst = XRenderCreatePicture (dpy, img->pm, format, CPRepeat, &pa); |
| 141 |
|
| 142 |
Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth); |
| 143 |
Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa); |
| 144 |
XFreePixmap (dpy, tmp_pm); |
| 145 |
|
| 146 |
if (kernel && params) |
| 147 |
{ |
| 148 |
size = rh * 2 + 1; |
| 149 |
get_gaussian_kernel (rh, size, kernel, params); |
| 150 |
|
| 151 |
XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2); |
| 152 |
XRenderComposite (dpy, |
| 153 |
PictOpSrc, |
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src, |
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None, |
| 156 |
tmp, |
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0, 0, |
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0, 0, |
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0, 0, |
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w, h); |
| 161 |
|
| 162 |
size = rv * 2 + 1; |
| 163 |
get_gaussian_kernel (rv, size, kernel, params); |
| 164 |
::swap (params[0], params[1]); |
| 165 |
|
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XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2); |
| 167 |
XRenderComposite (dpy, |
| 168 |
PictOpSrc, |
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tmp, |
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None, |
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dst, |
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0, 0, |
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0, 0, |
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0, 0, |
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w, h); |
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} |
| 177 |
|
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free (kernel); |
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free (params); |
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XRenderFreePicture (dpy, src); |
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XRenderFreePicture (dpy, dst); |
| 182 |
XRenderFreePicture (dpy, tmp); |
| 183 |
|
| 184 |
return img; |
| 185 |
} |
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|
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static Picture |
| 188 |
create_xrender_mask (Display *dpy, Drawable drawable, Bool argb) |
| 189 |
{ |
| 190 |
Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8); |
| 191 |
|
| 192 |
XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8); |
| 193 |
XRenderPictureAttributes pa; |
| 194 |
pa.repeat = True; |
| 195 |
Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa); |
| 196 |
|
| 197 |
XFreePixmap (dpy, pixmap); |
| 198 |
|
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return mask; |
| 200 |
} |
| 201 |
|
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void |
| 203 |
rxvt_img::brightness (double r, double g, double b, double a) |
| 204 |
{ |
| 205 |
Display *dpy = s->display->dpy; |
| 206 |
Picture src = create_xrender_mask (dpy, pm, True); |
| 207 |
Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
| 208 |
|
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XRenderColor mask_c; |
| 210 |
mask_c.red = float_to_component (r); |
| 211 |
mask_c.green = float_to_component (g); |
| 212 |
mask_c.blue = float_to_component (b); |
| 213 |
mask_c.alpha = float_to_component (a); |
| 214 |
XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1); |
| 215 |
|
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XRenderComposite (dpy, PictOpAdd, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
| 217 |
|
| 218 |
XRenderFreePicture (dpy, src); |
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XRenderFreePicture (dpy, dst); |
| 220 |
} |
| 221 |
|
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void |
| 223 |
rxvt_img::contrast (double r, double g, double b, double a) |
| 224 |
{ |
| 225 |
if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL)) |
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return; |
| 227 |
|
| 228 |
Display *dpy = s->display->dpy; |
| 229 |
Picture src = create_xrender_mask (dpy, pm, True); |
| 230 |
Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
| 231 |
|
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XRenderColor mask_c; |
| 233 |
mask_c.red = float_to_component (r); |
| 234 |
mask_c.green = float_to_component (g); |
| 235 |
mask_c.blue = float_to_component (b); |
| 236 |
mask_c.alpha = float_to_component (a); |
| 237 |
XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1); |
| 238 |
|
| 239 |
XRenderComposite (dpy, PictOpMultiply, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
| 240 |
|
| 241 |
XRenderFreePicture (dpy, src); |
| 242 |
XRenderFreePicture (dpy, dst); |
| 243 |
} |
| 244 |
|
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bool |
| 246 |
rxvt_img::render_pixbuf (GdkPixbuf *pixbuf, int src_x, int src_y, int width, int height, int dst_x, int dst_y) |
| 247 |
{ |
| 248 |
Display *dpy = s->display->dpy; |
| 249 |
|
| 250 |
if (s->visual->c_class != TrueColor) |
| 251 |
return false; |
| 252 |
|
| 253 |
uint32_t red_mask, green_mask, blue_mask, alpha_mask; |
| 254 |
|
| 255 |
red_mask = (uint32_t)format->direct.redMask << format->direct.red; |
| 256 |
green_mask = (uint32_t)format->direct.greenMask << format->direct.green; |
| 257 |
blue_mask = (uint32_t)format->direct.blueMask << format->direct.blue; |
| 258 |
alpha_mask = (uint32_t)format->direct.alphaMask << format->direct.alpha; |
| 259 |
|
| 260 |
int width_r = ecb_popcount32 (red_mask); |
| 261 |
int width_g = ecb_popcount32 (green_mask); |
| 262 |
int width_b = ecb_popcount32 (blue_mask); |
| 263 |
int width_a = ecb_popcount32 (alpha_mask); |
| 264 |
|
| 265 |
if (width_r > 8 || width_g > 8 || width_b > 8 || width_a > 8) |
| 266 |
return false; |
| 267 |
|
| 268 |
int sh_r = ecb_ctz32 (red_mask); |
| 269 |
int sh_g = ecb_ctz32 (green_mask); |
| 270 |
int sh_b = ecb_ctz32 (blue_mask); |
| 271 |
int sh_a = ecb_ctz32 (alpha_mask); |
| 272 |
|
| 273 |
if (width > 32767 || height > 32767) |
| 274 |
return false; |
| 275 |
|
| 276 |
XImage *ximage = XCreateImage (dpy, s->visual, format->depth, ZPixmap, 0, 0, |
| 277 |
width, height, 32, 0); |
| 278 |
if (!ximage) |
| 279 |
return false; |
| 280 |
|
| 281 |
if (height > INT_MAX / ximage->bytes_per_line |
| 282 |
|| !(ximage->data = (char *)malloc (height * ximage->bytes_per_line))) |
| 283 |
{ |
| 284 |
XDestroyImage (ximage); |
| 285 |
return false; |
| 286 |
} |
| 287 |
|
| 288 |
GC gc = XCreateGC (dpy, pm, 0, 0); |
| 289 |
|
| 290 |
ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst; |
| 291 |
|
| 292 |
int rowstride = gdk_pixbuf_get_rowstride (pixbuf); |
| 293 |
int channels = gdk_pixbuf_get_n_channels (pixbuf); |
| 294 |
unsigned char *row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels; |
| 295 |
char *line = ximage->data; |
| 296 |
|
| 297 |
for (int y = 0; y < height; y++) |
| 298 |
{ |
| 299 |
for (int x = 0; x < width; x++) |
| 300 |
{ |
| 301 |
unsigned char *pixel = row + x * channels; |
| 302 |
uint32_t value; |
| 303 |
unsigned char r, g, b, a; |
| 304 |
|
| 305 |
if (channels == 4) |
| 306 |
{ |
| 307 |
a = pixel[3]; |
| 308 |
r = pixel[0] * a / 0xff; |
| 309 |
g = pixel[1] * a / 0xff; |
| 310 |
b = pixel[2] * a / 0xff; |
| 311 |
} |
| 312 |
else |
| 313 |
{ |
| 314 |
a = 0xff; |
| 315 |
r = pixel[0]; |
| 316 |
g = pixel[1]; |
| 317 |
b = pixel[2]; |
| 318 |
} |
| 319 |
|
| 320 |
value = ((r >> (8 - width_r)) << sh_r) |
| 321 |
| ((g >> (8 - width_g)) << sh_g) |
| 322 |
| ((b >> (8 - width_b)) << sh_b) |
| 323 |
| ((a >> (8 - width_a)) << sh_a); |
| 324 |
|
| 325 |
if (ximage->bits_per_pixel == 32) |
| 326 |
((uint32_t *)line)[x] = value; |
| 327 |
else |
| 328 |
XPutPixel (ximage, x, y, value); |
| 329 |
} |
| 330 |
|
| 331 |
row += rowstride; |
| 332 |
line += ximage->bytes_per_line; |
| 333 |
} |
| 334 |
|
| 335 |
XPutImage (dpy, pm, gc, ximage, 0, 0, dst_x, dst_y, width, height); |
| 336 |
XDestroyImage (ximage); |
| 337 |
XFreeGC (dpy, gc); |
| 338 |
|
| 339 |
return true; |
| 340 |
} |
| 341 |
|
| 342 |
rxvt_img * |
| 343 |
rxvt_img::clone () |
| 344 |
{ |
| 345 |
rxvt_img *img = new rxvt_img (s, format, w, h); |
| 346 |
|
| 347 |
GC gc = XCreateGC (s->display->dpy, pm, 0, 0); |
| 348 |
XCopyArea (s->display->dpy, pm, img->pm, gc, 0, 0, w, h, 0, 0); |
| 349 |
XFreeGC (s->display->dpy, gc); |
| 350 |
|
| 351 |
return img; |
| 352 |
} |
| 353 |
|
| 354 |
rxvt_img * |
| 355 |
rxvt_img::sub_rect (int x, int y, int width, int height, int repeat) |
| 356 |
{ |
| 357 |
rxvt_img *img = new rxvt_img (s, format, width, height); |
| 358 |
|
| 359 |
Display *dpy = s->display->dpy; |
| 360 |
XRenderPictureAttributes pa; |
| 361 |
pa.repeat = repeat; |
| 362 |
Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
| 363 |
Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
| 364 |
|
| 365 |
XRenderComposite (dpy, PictOpSrc, src, None, dst, x, y, 0, 0, 0, 0, width, height); |
| 366 |
|
| 367 |
XRenderFreePicture (dpy, src); |
| 368 |
XRenderFreePicture (dpy, dst); |
| 369 |
|
| 370 |
return img; |
| 371 |
} |
| 372 |
|
| 373 |
rxvt_img * |
| 374 |
rxvt_img::transform (int new_width, int new_height, double matrix[9], int repeat) |
| 375 |
{ |
| 376 |
rxvt_img *img = new rxvt_img (s, format, new_width, new_height); |
| 377 |
|
| 378 |
Display *dpy = s->display->dpy; |
| 379 |
XRenderPictureAttributes pa; |
| 380 |
pa.repeat = repeat; |
| 381 |
Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
| 382 |
Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
| 383 |
|
| 384 |
XTransform xfrm; |
| 385 |
|
| 386 |
for (int i = 0; i < 3; ++i) |
| 387 |
for (int j = 0; j < 3; ++j) |
| 388 |
xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]); |
| 389 |
|
| 390 |
XRenderSetPictureFilter (dpy, src, "good", 0, 0); |
| 391 |
XRenderSetPictureTransform (dpy, src, &xfrm); |
| 392 |
XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height); |
| 393 |
|
| 394 |
XRenderFreePicture (dpy, src); |
| 395 |
XRenderFreePicture (dpy, dst); |
| 396 |
|
| 397 |
return img; |
| 398 |
} |
| 399 |
|
| 400 |
rxvt_img * |
| 401 |
rxvt_img::scale (int new_width, int new_height) |
| 402 |
{ |
| 403 |
double matrix[9] = { |
| 404 |
w / (double)new_width, 0, 0, |
| 405 |
0, h / (double)new_height, 0, |
| 406 |
0, 0, 1 |
| 407 |
}; |
| 408 |
|
| 409 |
return transform (new_width, new_height, matrix); |
| 410 |
} |
| 411 |
|
| 412 |
rxvt_img * |
| 413 |
rxvt_img::rotate (int new_width, int new_height, int x, int y, double phi, int repeat) |
| 414 |
{ |
| 415 |
double s = sin (phi); |
| 416 |
double c = cos (phi); |
| 417 |
|
| 418 |
double matrix[9] = { |
| 419 |
c, -s, -c * x + s * y + x, |
| 420 |
s, c, -s * x - c * y + y, |
| 421 |
0, 0, 1 |
| 422 |
}; |
| 423 |
|
| 424 |
return transform (new_width, new_height, matrix, repeat); |
| 425 |
} |
| 426 |
|
| 427 |
rxvt_img * |
| 428 |
rxvt_img::convert_to (XRenderPictFormat *new_format) |
| 429 |
{ |
| 430 |
rxvt_img *img = new rxvt_img (s, new_format, w, h); |
| 431 |
|
| 432 |
Display *dpy = s->display->dpy; |
| 433 |
Picture src = XRenderCreatePicture (dpy, pm, format, 0, 0); |
| 434 |
Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0); |
| 435 |
|
| 436 |
XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
| 437 |
|
| 438 |
XRenderFreePicture (dpy, src); |
| 439 |
XRenderFreePicture (dpy, dst); |
| 440 |
|
| 441 |
return img; |
| 442 |
} |
| 443 |
|
| 444 |
rxvt_img * |
| 445 |
rxvt_img::blend (rxvt_img *img, double factor) |
| 446 |
{ |
| 447 |
rxvt_img *img2 = clone (); |
| 448 |
Display *dpy = s->display->dpy; |
| 449 |
Picture src = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
| 450 |
Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0); |
| 451 |
Picture mask = create_xrender_mask (dpy, img->pm, False); |
| 452 |
|
| 453 |
XRenderColor mask_c; |
| 454 |
|
| 455 |
mask_c.alpha = float_to_component (factor); |
| 456 |
mask_c.red = |
| 457 |
mask_c.green = |
| 458 |
mask_c.blue = 0; |
| 459 |
XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1); |
| 460 |
|
| 461 |
XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, w, h); |
| 462 |
|
| 463 |
XRenderFreePicture (dpy, src); |
| 464 |
XRenderFreePicture (dpy, dst); |
| 465 |
XRenderFreePicture (dpy, mask); |
| 466 |
|
| 467 |
return img2; |
| 468 |
} |
| 469 |
|
| 470 |
#endif |
| 471 |
|
