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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.86 by sf-exg, Mon Oct 18 10:49:19 2010 UTC vs.
Revision 1.87 by sf-exg, Mon Oct 18 11:00:38 2010 UTC

… …
1123 double scale = sqrt (2.0 * M_PI) * sigma; 1123 double scale = sqrt (2.0 * M_PI) * sigma;
1124 double sum = 0.0; 1124 double sum = 0.0;
1125 1125
1126 for (int i = 0; i < width; i++) 1126 for (int i = 0; i < width; i++)
1127 { 1127 {
1128 double x = i - width / 2; 1128 double x = i - width / 2;
1129 kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale; 1129 kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1130 sum += kernel[i]; 1130 sum += kernel[i];
1131 } 1131 }
1132 1132
1133 params[0] = XDoubleToFixed (width); 1133 params[0] = XDoubleToFixed (width);
1134 params[1] = XDoubleToFixed (1); 1134 params[1] = XDoubleToFixed (1);
1135 1135
… …
1635 mask_r = visual->red_mask; 1635 mask_r = visual->red_mask;
1636 mask_g = visual->green_mask; 1636 mask_g = visual->green_mask;
1637 mask_b = visual->blue_mask; 1637 mask_b = visual->blue_mask;
1638 1638
1639 /* boring lookup table pre-initialization */ 1639 /* boring lookup table pre-initialization */
1640 switch (srcImage->bits_per_pixel) { 1640 switch (srcImage->bits_per_pixel)
1641 {
1641 case 15: 1642 case 15:
1642 if ((mask_r != 0x7c00) || 1643 if ((mask_r != 0x7c00) ||
1643 (mask_g != 0x03e0) || 1644 (mask_g != 0x03e0) ||
1644 (mask_b != 0x001f)) 1645 (mask_b != 0x001f))
1645 return; 1646 return;
1646 lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(32+32+32)); 1647 lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(32+32+32));
1647 lookup_r = lookup; 1648 lookup_r = lookup;
1648 lookup_g = lookup+32; 1649 lookup_g = lookup+32;
1649 lookup_b = lookup+32+32; 1650 lookup_b = lookup+32+32;
1650 sh_r = 10; 1651 sh_r = 10;
1651 sh_g = 5; 1652 sh_g = 5;
1652 sh_b = 0; 1653 sh_b = 0;
1653 break; 1654 break;
1654 case 16: 1655 case 16:
1655 if ((mask_r != 0xf800) || 1656 if ((mask_r != 0xf800) ||
1656 (mask_g != 0x07e0) || 1657 (mask_g != 0x07e0) ||
1657 (mask_b != 0x001f)) 1658 (mask_b != 0x001f))
1658 return; 1659 return;
1659 lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(32+64+32)); 1660 lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(32+64+32));
1660 lookup_r = lookup; 1661 lookup_r = lookup;
1661 lookup_g = lookup+32; 1662 lookup_g = lookup+32;
1662 lookup_b = lookup+32+64; 1663 lookup_b = lookup+32+64;
1663 sh_r = 11; 1664 sh_r = 11;
1664 sh_g = 5; 1665 sh_g = 5;
1665 sh_b = 0; 1666 sh_b = 0;
1666 break; 1667 break;
1667 case 24: 1668 case 24:
1668 if ((mask_r != 0xff0000) || 1669 if ((mask_r != 0xff0000) ||
1669 (mask_g != 0x00ff00) || 1670 (mask_g != 0x00ff00) ||
1670 (mask_b != 0x0000ff)) 1671 (mask_b != 0x0000ff))
1671 return; 1672 return;
1672 lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(256+256+256)); 1673 lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(256+256+256));
1673 lookup_r = lookup; 1674 lookup_r = lookup;
1674 lookup_g = lookup+256; 1675 lookup_g = lookup+256;
1675 lookup_b = lookup+256+256; 1676 lookup_b = lookup+256+256;
1676 sh_r = 16; 1677 sh_r = 16;
1677 sh_g = 8; 1678 sh_g = 8;
1678 sh_b = 0; 1679 sh_b = 0;
1679 break; 1680 break;
1680 case 32: 1681 case 32:
1681 if ((mask_r != 0xff0000) || 1682 if ((mask_r != 0xff0000) ||
1682 (mask_g != 0x00ff00) || 1683 (mask_g != 0x00ff00) ||
1683 (mask_b != 0x0000ff)) 1684 (mask_b != 0x0000ff))
1684 return; 1685 return;
1685 lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(256+256+256)); 1686 lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(256+256+256));
1686 lookup_r = lookup; 1687 lookup_r = lookup;
1687 lookup_g = lookup+256; 1688 lookup_g = lookup+256;
1688 lookup_b = lookup+256+256; 1689 lookup_b = lookup+256+256;
1689 sh_r = 16; 1690 sh_r = 16;
1690 sh_g = 8; 1691 sh_g = 8;
1691 sh_b = 0; 1692 sh_b = 0;
1692 break; 1693 break;
1693 default: 1694 default:
1694 return; /* we do not support this color depth */ 1695 return; /* we do not support this color depth */
1695 } 1696 }
1696 1697
1697 /* prepare limits for color transformation (each channel is handled separately) */ 1698 /* prepare limits for color transformation (each channel is handled separately) */
1698 if (shade > 100) { 1699 if (shade > 100)
1700 {
1699 shade = 200 - shade; 1701 shade = 200 - shade;
1700 1702
1701 lower_lim_r = 65535-rm; 1703 lower_lim_r = 65535-rm;
1702 lower_lim_g = 65535-gm; 1704 lower_lim_g = 65535-gm;
1703 lower_lim_b = 65535-bm; 1705 lower_lim_b = 65535-bm;
1704 1706
1705 lower_lim_r = 65535-(unsigned int)(((RUINT32T)lower_lim_r)*((RUINT32T)shade)/100); 1707 lower_lim_r = 65535-(unsigned int)(((RUINT32T)lower_lim_r)*((RUINT32T)shade)/100);
1706 lower_lim_g = 65535-(unsigned int)(((RUINT32T)lower_lim_g)*((RUINT32T)shade)/100); 1708 lower_lim_g = 65535-(unsigned int)(((RUINT32T)lower_lim_g)*((RUINT32T)shade)/100);
1707 lower_lim_b = 65535-(unsigned int)(((RUINT32T)lower_lim_b)*((RUINT32T)shade)/100); 1709 lower_lim_b = 65535-(unsigned int)(((RUINT32T)lower_lim_b)*((RUINT32T)shade)/100);
1708 1710
1709 upper_lim_r = upper_lim_g = upper_lim_b = 65535; 1711 upper_lim_r = upper_lim_g = upper_lim_b = 65535;
1712 }
1710 } else { 1713 else
1714 {
1711 1715
1712 lower_lim_r = lower_lim_g = lower_lim_b = 0; 1716 lower_lim_r = lower_lim_g = lower_lim_b = 0;
1713 1717
1714 upper_lim_r = (unsigned int)((((RUINT32T)rm)*((RUINT32T)shade))/100); 1718 upper_lim_r = (unsigned int)((((RUINT32T)rm)*((RUINT32T)shade))/100);
1715 upper_lim_g = (unsigned int)((((RUINT32T)gm)*((RUINT32T)shade))/100); 1719 upper_lim_g = (unsigned int)((((RUINT32T)gm)*((RUINT32T)shade))/100);
1716 upper_lim_b = (unsigned int)((((RUINT32T)bm)*((RUINT32T)shade))/100); 1720 upper_lim_b = (unsigned int)((((RUINT32T)bm)*((RUINT32T)shade))/100);
1717 } 1721 }
1718 1722
1719 /* switch red and blue bytes if necessary, we need it for some weird XServers like XFree86 3.3.3.1 */ 1723 /* switch red and blue bytes if necessary, we need it for some weird XServers like XFree86 3.3.3.1 */
1720 if ((srcImage->bits_per_pixel == 24) && (mask_r >= 0xFF0000)) 1724 if ((srcImage->bits_per_pixel == 24) && (mask_r >= 0xFF0000))
1721 { 1725 {
1722 unsigned int tmp; 1726 unsigned int tmp;
1723 1727
1724 tmp = lower_lim_r; 1728 tmp = lower_lim_r;
1725 lower_lim_r = lower_lim_b; 1729 lower_lim_r = lower_lim_b;
1726 lower_lim_b = tmp; 1730 lower_lim_b = tmp;
1727 1731
1728 tmp = upper_lim_r; 1732 tmp = upper_lim_r;
1729 upper_lim_r = upper_lim_b; 1733 upper_lim_r = upper_lim_b;
1730 upper_lim_b = tmp; 1734 upper_lim_b = tmp;
1731 } 1735 }
1732 1736
1733 /* fill our lookup tables */ 1737 /* fill our lookup tables */
1734 for (i = 0; i <= mask_r>>sh_r; i++) 1738 for (i = 0; i <= mask_r>>sh_r; i++)
1735 { 1739 {
1736 RUINT32T tmp; 1740 RUINT32T tmp;
1737 tmp = ((RUINT32T)i)*((RUINT32T)(upper_lim_r-lower_lim_r)); 1741 tmp = ((RUINT32T)i)*((RUINT32T)(upper_lim_r-lower_lim_r));
1738 tmp += ((RUINT32T)(mask_r>>sh_r))*((RUINT32T)lower_lim_r); 1742 tmp += ((RUINT32T)(mask_r>>sh_r))*((RUINT32T)lower_lim_r);
1739 lookup_r[i] = (tmp/65535)<<sh_r; 1743 lookup_r[i] = (tmp/65535)<<sh_r;
1740 } 1744 }
1741 for (i = 0; i <= mask_g>>sh_g; i++) 1745 for (i = 0; i <= mask_g>>sh_g; i++)
1742 { 1746 {
1743 RUINT32T tmp; 1747 RUINT32T tmp;
1744 tmp = ((RUINT32T)i)*((RUINT32T)(upper_lim_g-lower_lim_g)); 1748 tmp = ((RUINT32T)i)*((RUINT32T)(upper_lim_g-lower_lim_g));
1745 tmp += ((RUINT32T)(mask_g>>sh_g))*((RUINT32T)lower_lim_g); 1749 tmp += ((RUINT32T)(mask_g>>sh_g))*((RUINT32T)lower_lim_g);
1746 lookup_g[i] = (tmp/65535)<<sh_g; 1750 lookup_g[i] = (tmp/65535)<<sh_g;
1747 } 1751 }
1748 for (i = 0; i <= mask_b>>sh_b; i++) 1752 for (i = 0; i <= mask_b>>sh_b; i++)
1749 { 1753 {
1750 RUINT32T tmp; 1754 RUINT32T tmp;
1751 tmp = ((RUINT32T)i)*((RUINT32T)(upper_lim_b-lower_lim_b)); 1755 tmp = ((RUINT32T)i)*((RUINT32T)(upper_lim_b-lower_lim_b));
1752 tmp += ((RUINT32T)(mask_b>>sh_b))*((RUINT32T)lower_lim_b); 1756 tmp += ((RUINT32T)(mask_b>>sh_b))*((RUINT32T)lower_lim_b);
1753 lookup_b[i] = (tmp/65535)<<sh_b; 1757 lookup_b[i] = (tmp/65535)<<sh_b;
1754 } 1758 }
1755 1759
1756 /* apply table to input image (replacing colors by newly calculated ones) */ 1760 /* apply table to input image (replacing colors by newly calculated ones) */
1757 switch (srcImage->bits_per_pixel) 1761 switch (srcImage->bits_per_pixel)
1758 { 1762 {
1759 case 15: 1763 case 15:
1760 { 1764 {
1761 unsigned short *p1, *pf, *p, *pl; 1765 unsigned short *p1, *pf, *p, *pl;
1762 p1 = (unsigned short *) srcImage->data; 1766 p1 = (unsigned short *) srcImage->data;
1763 pf = (unsigned short *) (srcImage->data + srcImage->height * srcImage->bytes_per_line); 1767 pf = (unsigned short *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1764 while (p1 < pf) 1768 while (p1 < pf)
1765 { 1769 {
1766 p = p1; 1770 p = p1;
1767 pl = p1 + srcImage->width; 1771 pl = p1 + srcImage->width;
1768 for (; p < pl; p++) 1772 for (; p < pl; p++)
1769 { 1773 {
1770 *p = lookup_r[(*p & 0x7c00)>>10] | 1774 *p = lookup_r[(*p & 0x7c00)>>10] |
1771 lookup_g[(*p & 0x03e0)>> 5] | 1775 lookup_g[(*p & 0x03e0)>> 5] |
1772 lookup_b[(*p & 0x001f)]; 1776 lookup_b[(*p & 0x001f)];
1773 } 1777 }
1774 p1 = (unsigned short *) ((char *) p1 + srcImage->bytes_per_line); 1778 p1 = (unsigned short *) ((char *) p1 + srcImage->bytes_per_line);
1779 }
1780 break;
1775 } 1781 }
1776 break;
1777 }
1778 case 16: 1782 case 16:
1779 { 1783 {
1780 unsigned short *p1, *pf, *p, *pl; 1784 unsigned short *p1, *pf, *p, *pl;
1781 p1 = (unsigned short *) srcImage->data; 1785 p1 = (unsigned short *) srcImage->data;
1782 pf = (unsigned short *) (srcImage->data + srcImage->height * srcImage->bytes_per_line); 1786 pf = (unsigned short *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1783 while (p1 < pf) 1787 while (p1 < pf)
1784 { 1788 {
1785 p = p1; 1789 p = p1;
1786 pl = p1 + srcImage->width; 1790 pl = p1 + srcImage->width;
1787 for (; p < pl; p++) 1791 for (; p < pl; p++)
1788 { 1792 {
1789 *p = lookup_r[(*p & 0xf800)>>11] | 1793 *p = lookup_r[(*p & 0xf800)>>11] |
1790 lookup_g[(*p & 0x07e0)>> 5] | 1794 lookup_g[(*p & 0x07e0)>> 5] |
1791 lookup_b[(*p & 0x001f)]; 1795 lookup_b[(*p & 0x001f)];
1792 } 1796 }
1793 p1 = (unsigned short *) ((char *) p1 + srcImage->bytes_per_line); 1797 p1 = (unsigned short *) ((char *) p1 + srcImage->bytes_per_line);
1798 }
1799 break;
1794 } 1800 }
1795 break;
1796 }
1797 case 24: 1801 case 24:
1798 { 1802 {
1799 unsigned char *p1, *pf, *p, *pl; 1803 unsigned char *p1, *pf, *p, *pl;
1800 p1 = (unsigned char *) srcImage->data; 1804 p1 = (unsigned char *) srcImage->data;
1801 pf = (unsigned char *) (srcImage->data + srcImage->height * srcImage->bytes_per_line); 1805 pf = (unsigned char *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1802 while (p1 < pf) 1806 while (p1 < pf)
1803 { 1807 {
1804 p = p1; 1808 p = p1;
1805 pl = p1 + srcImage->width * 3; 1809 pl = p1 + srcImage->width * 3;
1806 for (; p < pl; p += 3) 1810 for (; p < pl; p += 3)
1807 { 1811 {
1808 p[0] = lookup_r[(p[0] & 0xff0000)>>16]; 1812 p[0] = lookup_r[(p[0] & 0xff0000)>>16];
1809 p[1] = lookup_r[(p[1] & 0x00ff00)>> 8]; 1813 p[1] = lookup_r[(p[1] & 0x00ff00)>> 8];
1810 p[2] = lookup_r[(p[2] & 0x0000ff)]; 1814 p[2] = lookup_r[(p[2] & 0x0000ff)];
1811 } 1815 }
1812 p1 = (unsigned char *) ((char *) p1 + srcImage->bytes_per_line); 1816 p1 = (unsigned char *) ((char *) p1 + srcImage->bytes_per_line);
1817 }
1818 break;
1813 } 1819 }
1814 break;
1815 }
1816 case 32: 1820 case 32:
1817 { 1821 {
1818 RUINT32T *p1, *pf, *p, *pl; 1822 RUINT32T *p1, *pf, *p, *pl;
1819 p1 = (RUINT32T *) srcImage->data; 1823 p1 = (RUINT32T *) srcImage->data;
1820 pf = (RUINT32T *) (srcImage->data + srcImage->height * srcImage->bytes_per_line); 1824 pf = (RUINT32T *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1821 1825
1822 while (p1 < pf) 1826 while (p1 < pf)
1823 { 1827 {
1824 p = p1; 1828 p = p1;
1825 pl = p1 + srcImage->width; 1829 pl = p1 + srcImage->width;
1826 for (; p < pl; p++) 1830 for (; p < pl; p++)
1827 { 1831 {
1828 *p = lookup_r[(*p & 0xff0000)>>16] | 1832 *p = lookup_r[(*p & 0xff0000)>>16] |
1829 lookup_g[(*p & 0x00ff00)>> 8] | 1833 lookup_g[(*p & 0x00ff00)>> 8] |
1830 lookup_b[(*p & 0x0000ff)] | 1834 lookup_b[(*p & 0x0000ff)] |
1831 (*p & ~0xffffff); 1835 (*p & ~0xffffff);
1832 } 1836 }
1833 p1 = (RUINT32T *) ((char *) p1 + srcImage->bytes_per_line); 1837 p1 = (RUINT32T *) ((char *) p1 + srcImage->bytes_per_line);
1838 }
1839 break;
1834 } 1840 }
1835 break;
1836 }
1837 } 1841 }
1838 1842
1839 free (lookup); 1843 free (lookup);
1840} 1844}
1841#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */ 1845#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */

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