| … | |
… | |
| 1435 | #endif /* HAVE_BG_PIXMAP */ |
1435 | #endif /* HAVE_BG_PIXMAP */ |
| 1436 | |
1436 | |
| 1437 | #if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) |
1437 | #if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) |
| 1438 | /* based on code from aterm-0.4.2 */ |
1438 | /* based on code from aterm-0.4.2 */ |
| 1439 | |
1439 | |
|
|
1440 | static inline void |
|
|
1441 | fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high) |
|
|
1442 | { |
|
|
1443 | for (int i = 0; i <= mask >> sh; i++) |
|
|
1444 | { |
|
|
1445 | uint32_t tmp; |
|
|
1446 | tmp = i * high; |
|
|
1447 | tmp += (mask >> sh) * low; |
|
|
1448 | lookup[i] = (tmp / 0xffff) << sh; |
|
|
1449 | } |
|
|
1450 | } |
|
|
1451 | |
| 1440 | static void |
1452 | static void |
| 1441 | shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c) |
1453 | shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c) |
| 1442 | { |
1454 | { |
| 1443 | int sh_r, sh_g, sh_b; |
1455 | int sh_r, sh_g, sh_b; |
| 1444 | uint32_t mask_r, mask_g, mask_b; |
1456 | uint32_t mask_r, mask_g, mask_b; |
| 1445 | uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b; |
1457 | uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b; |
| 1446 | rgba low; |
1458 | rgba low; |
| 1447 | rgba high; |
1459 | rgba high; |
| 1448 | int i; |
|
|
| 1449 | int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst; |
1460 | int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst; |
| 1450 | |
1461 | |
| 1451 | if (visual->c_class != TrueColor || ximage->format != ZPixmap) return; |
1462 | if (visual->c_class != TrueColor || ximage->format != ZPixmap) return; |
| 1452 | |
1463 | |
| 1453 | /* for convenience */ |
1464 | /* for convenience */ |
| … | |
… | |
| 1535 | |
1546 | |
| 1536 | low.r = low.g = low.b = 0; |
1547 | low.r = low.g = low.b = 0; |
| 1537 | } |
1548 | } |
| 1538 | |
1549 | |
| 1539 | /* fill our lookup tables */ |
1550 | /* fill our lookup tables */ |
| 1540 | for (i = 0; i <= mask_r>>sh_r; i++) |
1551 | fill_lut (lookup_r, mask_r, sh_r, low.r, high.r); |
| 1541 | { |
1552 | fill_lut (lookup_g, mask_g, sh_g, low.g, high.g); |
| 1542 | uint32_t tmp; |
1553 | fill_lut (lookup_b, mask_b, sh_b, low.b, high.b); |
| 1543 | tmp = i * high.r; |
|
|
| 1544 | tmp += (mask_r>>sh_r) * low.r; |
|
|
| 1545 | lookup_r[i] = (tmp/65535)<<sh_r; |
|
|
| 1546 | } |
|
|
| 1547 | for (i = 0; i <= mask_g>>sh_g; i++) |
|
|
| 1548 | { |
|
|
| 1549 | uint32_t tmp; |
|
|
| 1550 | tmp = i * high.g; |
|
|
| 1551 | tmp += (mask_g>>sh_g) * low.g; |
|
|
| 1552 | lookup_g[i] = (tmp/65535)<<sh_g; |
|
|
| 1553 | } |
|
|
| 1554 | for (i = 0; i <= mask_b>>sh_b; i++) |
|
|
| 1555 | { |
|
|
| 1556 | uint32_t tmp; |
|
|
| 1557 | tmp = i * high.b; |
|
|
| 1558 | tmp += (mask_b>>sh_b) * low.b; |
|
|
| 1559 | lookup_b[i] = (tmp/65535)<<sh_b; |
|
|
| 1560 | } |
|
|
| 1561 | |
1554 | |
| 1562 | /* apply table to input image (replacing colors by newly calculated ones) */ |
1555 | /* apply table to input image (replacing colors by newly calculated ones) */ |
| 1563 | if (ximage->bits_per_pixel == 32 |
1556 | if (ximage->bits_per_pixel == 32 |
| 1564 | && (ximage->depth == 24 || ximage->depth == 32) |
1557 | && (ximage->depth == 24 || ximage->depth == 32) |
| 1565 | && ximage->byte_order == host_byte_order) |
1558 | && ximage->byte_order == host_byte_order) |
