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/cvs/rxvt-unicode/src/rxvtimg.C
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Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.6 by sf-exg, Sun Jun 3 18:49:55 2012 UTC vs.
Revision 1.14 by root, Mon Jun 4 15:53:12 2012 UTC

… …
18} 18}
19 19
20rxvt_img * 20rxvt_img *
21rxvt_img::new_from_file (rxvt_screen *s, const char *filename) 21rxvt_img::new_from_file (rxvt_screen *s, const char *filename)
22{ 22{
23 GError *err; 23 GError *err = 0;
24 GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err); 24 GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err);
25 25
26 if (!pb) 26 if (!pb)
27 return 0; 27 rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message);
28 28
29 rxvt_img *img = new rxvt_img ( 29 rxvt_img *img = new rxvt_img (
30 s, 30 s,
31 XRenderFindStandardFormat (s->display->dpy, gdk_pixbuf_get_has_alpha (pb) ? PictStandardARGB32 : PictStandardRGB24), 31 XRenderFindStandardFormat (s->display->dpy, gdk_pixbuf_get_has_alpha (pb) ? PictStandardARGB32 : PictStandardRGB24),
32 gdk_pixbuf_get_width (pb), 32 gdk_pixbuf_get_width (pb),
33 gdk_pixbuf_get_height (pb) 33 gdk_pixbuf_get_height (pb)
34 ); 34 );
35 35
36 img->render (pb, 0, 0, img->w, img->h, 0, 0); 36 img->render_pixbuf (pb, 0, 0, img->w, img->h, 0, 0);
37 37
38 return img; 38 return img;
39} 39}
40 40
41rxvt_img::~rxvt_img () 41rxvt_img::~rxvt_img ()
42{ 42{
43 if (!shared) 43 if (!shared)
44 XFreePixmap (s->display->dpy, pm); 44 XFreePixmap (s->display->dpy, pm);
45}
46
47void
48rxvt_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;
45} 59}
46 60
47void 61void
48rxvt_img::fill (const rxvt_color &c) 62rxvt_img::fill (const rxvt_color &c)
49{ 63{
… …
184 XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1); 198 XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1);
185 199
186 XRenderComposite (dpy, PictOpMultiply, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); 200 XRenderComposite (dpy, PictOpMultiply, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);
187} 201}
188 202
189void 203bool
190rxvt_img::render (GdkPixbuf *pixbuf, int src_x, int src_y, int width, int height, int dst_x, int dst_y) 204rxvt_img::render_pixbuf (GdkPixbuf *pixbuf, int src_x, int src_y, int width, int height, int dst_x, int dst_y)
191{ 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);
192 //TODO 272 //TODO
193} 273 c.r >>= 8;
274 c.g >>= 8;
275 c.b >>= 8;
276 }
194 277
278 for (int y = 0; y < height; y++)
279 {
280 for (int x = 0; x < width; x++)
281 {
282 unsigned char *pixel = row + x * channels;
283 uint32_t value;
284 unsigned char r, g, b, a;
285
286 if (channels == 4)
287 {
288 a = pixel[3];
289 r = (pixel[0] * a + c.r * (0xff - a)) / 0xff;
290 g = (pixel[1] * a + c.g * (0xff - a)) / 0xff;
291 b = (pixel[2] * a + c.b * (0xff - a)) / 0xff;
292 }
293 else
294 {
295 a = 0xff;
296 r = pixel[0];
297 g = pixel[1];
298 b = pixel[2];
299 }
300
301 value = ((r >> (8 - width_r)) << sh_r)
302 | ((g >> (8 - width_g)) << sh_g)
303 | ((b >> (8 - width_b)) << sh_b)
304 | ((a >> (8 - width_a)) << sh_a);
305
306 if (ximage->bits_per_pixel == 32)
307 ((uint32_t *)line)[x] = value;
308 else
309 XPutPixel (ximage, x, y, value);
310 }
311
312 row += rowstride;
313 line += ximage->bytes_per_line;
314 }
315
316 XPutImage (dpy, pm, gc, ximage, 0, 0, dst_x, dst_y, width, height);
317 XDestroyImage (ximage);
318 XFreeGC (dpy, gc);
319
320 return true;
321}
322
195rxvt_img * 323rxvt_img *
196rxvt_img::copy () 324rxvt_img::clone ()
197{ 325{
198 GC gc = XCreateGC (s->display->dpy, pm, 0, 0); 326 GC gc = XCreateGC (s->display->dpy, pm, 0, 0);
199 Pixmap pm2 = XCreatePixmap (s->display->dpy, pm, w, h, format->depth); 327 Pixmap pm2 = XCreatePixmap (s->display->dpy, pm, w, h, format->depth);
200 XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, w, h, 0, 0); 328 XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, w, h, 0, 0);
201 XFreeGC (s->display->dpy, gc); 329 XFreeGC (s->display->dpy, gc);
202 return new rxvt_img (s, format, w, h, pm2); 330 return new rxvt_img (s, format, w, h, pm2);
203} 331}
204 332
205rxvt_img * 333rxvt_img *
206rxvt_img::transform (int new_width, int new_height, double matrix[16]) 334rxvt_img::transform (int new_width, int new_height, int repeat, double matrix[9])
207{ 335{
208 //TODO 336 rxvt_img *img = new rxvt_img (s, format, new_width, new_height);
337
338 Display *dpy = s->display->dpy;
339 XRenderPictureAttributes pa;
340 pa.repeat = repeat;
341 Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);
342 Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
343
344 XTransform xfrm;
345
346 for (int i = 0; i < 3; ++i)
347 for (int j = 0; j < 3; ++j)
348 xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]);
349
350 XRenderSetPictureTransform (dpy, src, &xfrm);
351 XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height);
352
353 XRenderFreePicture (dpy, src);
354 XRenderFreePicture (dpy, dst);
355
356 return img;
209} 357}
210 358
211rxvt_img * 359rxvt_img *
212rxvt_img::scale (int new_width, int new_height) 360rxvt_img::scale (int new_width, int new_height)
213{ 361{
214 // use transform 362 double matrix[9] = {
215 //TODO 363 new_width / (double)w, 0, 0,
216} 364 0, new_height / (double)h, 0,
365 0, 0, 1
366 };
217 367
368 return transform (new_width, new_height, RepeatNormal, matrix);
369}
370
371rxvt_img *
372rxvt_img::convert_to (XRenderPictFormat *new_format)
373{
374 rxvt_img *img = new rxvt_img (s, new_format, w, h);
375
376 Display *dpy = s->display->dpy;
377 Picture src = XRenderCreatePicture (dpy, pm, format, 0, 0);
378 Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0);
379
380 XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);
381
382 XRenderFreePicture (dpy, src);
383 XRenderFreePicture (dpy, dst);
384
385 return img;
386}
218 387
219#endif 388#endif
220 389

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