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/cvs/rxvt-unicode/src/rxvtimg.C
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Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.11 by root, Mon Jun 4 15:15:49 2012 UTC vs.
Revision 1.17 by root, Mon Jun 4 18:17:25 2012 UTC

… …
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 ()
… …
101 XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); 101 XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
102 102
103 XRenderPictureAttributes pa; 103 XRenderPictureAttributes pa;
104 104
105 pa.repeat = RepeatPad; 105 pa.repeat = RepeatPad;
106 Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); 106 Picture src = XRenderCreatePicture (dpy, pm , format, CPRepeat, &pa);
107 Pixmap tmp = XCreatePixmap (dpy, pm, w, h, format->depth); 107 Pixmap tmp = XCreatePixmap (dpy, pm, w, h, format->depth);
108 Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa); 108 Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);
109 XFreePixmap (dpy, tmp); 109 XFreePixmap (dpy, tmp);
110 110
111 if (kernel && params) 111 if (kernel && params)
… …
198 XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1); 198 XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1);
199 199
200 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);
201} 201}
202 202
203void 203bool
204rxvt_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)
205{ 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);
206 //TODO 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;
207} 322}
208 323
209rxvt_img * 324rxvt_img *
210rxvt_img::clone () 325rxvt_img::clone ()
211{ 326{
… …
217} 332}
218 333
219rxvt_img * 334rxvt_img *
220rxvt_img::transform (int new_width, int new_height, int repeat, double matrix[9]) 335rxvt_img::transform (int new_width, int new_height, int repeat, double matrix[9])
221{ 336{
222 //TODO 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;
223} 359}
224 360
225rxvt_img * 361rxvt_img *
226rxvt_img::scale (int new_width, int new_height) 362rxvt_img::scale (int new_width, int new_height)
227{ 363{
228 double matrix[9] = { 364 double matrix[9] = {
229 new_width / (double)w, 0, 0, 365 w / (double)new_width, 0, 0,
230 0, new_height / (double)h, 0, 366 0, h / (double)new_height, 0,
231 0, 0, 1 367 0, 0, 1
232 }; 368 };
233 369
234 return transform (new_width, new_height, RepeatNormal, matrix); 370 return transform (new_width, new_height, RepeatNormal, matrix);
235} 371}
236 372
237rxvt_img * 373rxvt_img *
374rxvt_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
388rxvt_img *
238rxvt_img::convert_to (XRenderPictFormat *new_format) 389rxvt_img::convert_to (XRenderPictFormat *new_format)
239{ 390{
240 rxvt_img *img = new rxvt_img (s, new_format, w, h); 391 rxvt_img *img = new rxvt_img (s, new_format, w, h);
241 392
242 Display *dpy = s->display->dpy; 393 Display *dpy = s->display->dpy;
243 Picture src = XRenderCreatePicture (dpy, pm, format, 0, 0); 394 Picture src = XRenderCreatePicture (dpy, pm, format, 0, 0);
244 Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0); 395 Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0);
245 396
246 XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); 397 XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);
247 398
248 XRenderFreePicture (dpy, src); 399 XRenderFreePicture (dpy, src);

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