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xserver-multidpi/fb/fbutil.c
Paulo Cesar Pereira de Andrade 49f77fff14 Rework symbol visibility for easier maintenance 
Save in a few special cases, _X_EXPORT should not be used in C source
files. Instead, it should be used in headers, and the proper C source
include that header. Some special cases are symbols that need to be
shared between modules, but not expected to be used by external drivers,
and symbols that are accessible via LoaderSymbol/dlopen.

  This patch also adds conditionally some new sdk header files, depending
on extensions enabled. These files were added to match pattern for
other extensions/modules, that is, have the headers "deciding" symbol
visibility in the sdk. These headers are:
o Xext/panoramiXsrv.h, Xext/panoramiX.h
o fbpict.h (unconditionally)
o vidmodeproc.h
o mioverlay.h (unconditionally, used only by xaa)
o xfixes.h (unconditionally, symbols required by dri2)

  LoaderSymbol and similar functions now don't have different prototypes,
in loaderProcs.h and xf86Module.h, so that both headers can be included,
without the need of defining IN_LOADER.

  xf86NewInputDevice() device prototype readded to xf86Xinput.h, but
not exported (and with a comment about it).
2008-12-03 05:43:34 -02:00

363 lines
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/*
* Copyright © 1998 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include "fb.h"
FbBits
fbReplicatePixel (Pixel p, int bpp)
{
FbBits b = p;
b &= FbFullMask (bpp);
while (bpp < FB_UNIT)
{
b |= b << bpp;
bpp <<= 1;
}
return b;
}
void
fbReduceRasterOp (int rop, FbBits fg, FbBits pm, FbBits *andp, FbBits *xorp)
{
FbBits and, xor;
switch (rop)
{
default:
case GXclear: /* 0 0 0 0 */
and = 0;
xor = 0;
break;
case GXand: /* 0 0 0 1 */
and = fg;
xor = 0;
break;
case GXandReverse: /* 0 0 1 0 */
and = fg;
xor = fg;
break;
case GXcopy: /* 0 0 1 1 */
and = 0;
xor = fg;
break;
case GXandInverted: /* 0 1 0 0 */
and = ~fg;
xor = 0;
break;
case GXnoop: /* 0 1 0 1 */
and = FB_ALLONES;
xor = 0;
break;
case GXxor: /* 0 1 1 0 */
and = FB_ALLONES;
xor = fg;
break;
case GXor: /* 0 1 1 1 */
and = ~fg;
xor = fg;
break;
case GXnor: /* 1 0 0 0 */
and = ~fg;
xor = ~fg;
break;
case GXequiv: /* 1 0 0 1 */
and = FB_ALLONES;
xor = ~fg;
break;
case GXinvert: /* 1 0 1 0 */
and = FB_ALLONES;
xor = FB_ALLONES;
break;
case GXorReverse: /* 1 0 1 1 */
and = ~fg;
xor = FB_ALLONES;
break;
case GXcopyInverted: /* 1 1 0 0 */
and = 0;
xor = ~fg;
break;
case GXorInverted: /* 1 1 0 1 */
and = fg;
xor = ~fg;
break;
case GXnand: /* 1 1 1 0 */
and = fg;
xor = FB_ALLONES;
break;
case GXset: /* 1 1 1 1 */
and = 0;
xor = FB_ALLONES;
break;
}
and |= ~pm;
xor &= pm;
*andp = and;
*xorp = xor;
}
#define O 0
#define I FB_ALLONES
const FbMergeRopRec FbMergeRopBits[16] = {
{ O,O,O,O }, /* clear 0x0 0 */
{ I,O,O,O }, /* and 0x1 src AND dst */
{ I,O,I,O }, /* andReverse 0x2 src AND NOT dst */
{ O,O,I,O }, /* copy 0x3 src */
{ I,I,O,O }, /* andInverted 0x4 NOT src AND dst */
{ O,I,O,O }, /* noop 0x5 dst */
{ O,I,I,O }, /* xor 0x6 src XOR dst */
{ I,I,I,O }, /* or 0x7 src OR dst */
{ I,I,I,I }, /* nor 0x8 NOT src AND NOT dst */
{ O,I,I,I }, /* equiv 0x9 NOT src XOR dst */
{ O,I,O,I }, /* invert 0xa NOT dst */
{ I,I,O,I }, /* orReverse 0xb src OR NOT dst */
{ O,O,I,I }, /* copyInverted 0xc NOT src */
{ I,O,I,I }, /* orInverted 0xd NOT src OR dst */
{ I,O,O,I }, /* nand 0xe NOT src OR NOT dst */
{ O,O,O,I }, /* set 0xf 1 */
};
/*
* Stipple masks are independent of bit/byte order as long
* as bitorder == byteorder. FB doesn't handle the case
* where these differ
*/
#define BitsMask(x,w) ((FB_ALLONES << ((x) & FB_MASK)) & \
(FB_ALLONES >> ((FB_UNIT - ((x) + (w))) & FB_MASK)))
#define Mask(x,w) BitsMask((x)*(w),(w))
#define SelMask(b,n,w) ((((b) >> n) & 1) * Mask(n,w))
#define C1(b,w) \
(SelMask(b,0,w))
#define C2(b,w) \
(SelMask(b,0,w) | \
SelMask(b,1,w))
#define C4(b,w) \
(SelMask(b,0,w) | \
SelMask(b,1,w) | \
SelMask(b,2,w) | \
SelMask(b,3,w))
#define C8(b,w) \
(SelMask(b,0,w) | \
SelMask(b,1,w) | \
SelMask(b,2,w) | \
SelMask(b,3,w) | \
SelMask(b,4,w) | \
SelMask(b,5,w) | \
SelMask(b,6,w) | \
SelMask(b,7,w))
#if FB_UNIT == 16
#define fbStipple16Bits 0
#define fbStipple8Bits 0
const FbBits fbStipple4Bits[16] = {
C4( 0,4), C4( 1,4), C4( 2,4), C4( 3,4), C4( 4,4), C4( 5,4),
C4( 6,4), C4( 7,4), C4( 8,4), C4( 9,4), C4( 10,4), C4( 11,4),
C4( 12,4), C4( 13,4), C4( 14,4), C4( 15,4),};
const FbBits fbStipple2Bits[4] = {
C2( 0,8), C2( 1,8), C2( 2,8), C2( 3,8),
};
const FbBits fbStipple1Bits[2] = {
C1( 0,16), C1( 1,16),
};
#endif
#if FB_UNIT == 32
#define fbStipple16Bits 0
const FbBits fbStipple8Bits[256] = {
C8( 0,4), C8( 1,4), C8( 2,4), C8( 3,4), C8( 4,4), C8( 5,4),
C8( 6,4), C8( 7,4), C8( 8,4), C8( 9,4), C8( 10,4), C8( 11,4),
C8( 12,4), C8( 13,4), C8( 14,4), C8( 15,4), C8( 16,4), C8( 17,4),
C8( 18,4), C8( 19,4), C8( 20,4), C8( 21,4), C8( 22,4), C8( 23,4),
C8( 24,4), C8( 25,4), C8( 26,4), C8( 27,4), C8( 28,4), C8( 29,4),
C8( 30,4), C8( 31,4), C8( 32,4), C8( 33,4), C8( 34,4), C8( 35,4),
C8( 36,4), C8( 37,4), C8( 38,4), C8( 39,4), C8( 40,4), C8( 41,4),
C8( 42,4), C8( 43,4), C8( 44,4), C8( 45,4), C8( 46,4), C8( 47,4),
C8( 48,4), C8( 49,4), C8( 50,4), C8( 51,4), C8( 52,4), C8( 53,4),
C8( 54,4), C8( 55,4), C8( 56,4), C8( 57,4), C8( 58,4), C8( 59,4),
C8( 60,4), C8( 61,4), C8( 62,4), C8( 63,4), C8( 64,4), C8( 65,4),
C8( 66,4), C8( 67,4), C8( 68,4), C8( 69,4), C8( 70,4), C8( 71,4),
C8( 72,4), C8( 73,4), C8( 74,4), C8( 75,4), C8( 76,4), C8( 77,4),
C8( 78,4), C8( 79,4), C8( 80,4), C8( 81,4), C8( 82,4), C8( 83,4),
C8( 84,4), C8( 85,4), C8( 86,4), C8( 87,4), C8( 88,4), C8( 89,4),
C8( 90,4), C8( 91,4), C8( 92,4), C8( 93,4), C8( 94,4), C8( 95,4),
C8( 96,4), C8( 97,4), C8( 98,4), C8( 99,4), C8(100,4), C8(101,4),
C8(102,4), C8(103,4), C8(104,4), C8(105,4), C8(106,4), C8(107,4),
C8(108,4), C8(109,4), C8(110,4), C8(111,4), C8(112,4), C8(113,4),
C8(114,4), C8(115,4), C8(116,4), C8(117,4), C8(118,4), C8(119,4),
C8(120,4), C8(121,4), C8(122,4), C8(123,4), C8(124,4), C8(125,4),
C8(126,4), C8(127,4), C8(128,4), C8(129,4), C8(130,4), C8(131,4),
C8(132,4), C8(133,4), C8(134,4), C8(135,4), C8(136,4), C8(137,4),
C8(138,4), C8(139,4), C8(140,4), C8(141,4), C8(142,4), C8(143,4),
C8(144,4), C8(145,4), C8(146,4), C8(147,4), C8(148,4), C8(149,4),
C8(150,4), C8(151,4), C8(152,4), C8(153,4), C8(154,4), C8(155,4),
C8(156,4), C8(157,4), C8(158,4), C8(159,4), C8(160,4), C8(161,4),
C8(162,4), C8(163,4), C8(164,4), C8(165,4), C8(166,4), C8(167,4),
C8(168,4), C8(169,4), C8(170,4), C8(171,4), C8(172,4), C8(173,4),
C8(174,4), C8(175,4), C8(176,4), C8(177,4), C8(178,4), C8(179,4),
C8(180,4), C8(181,4), C8(182,4), C8(183,4), C8(184,4), C8(185,4),
C8(186,4), C8(187,4), C8(188,4), C8(189,4), C8(190,4), C8(191,4),
C8(192,4), C8(193,4), C8(194,4), C8(195,4), C8(196,4), C8(197,4),
C8(198,4), C8(199,4), C8(200,4), C8(201,4), C8(202,4), C8(203,4),
C8(204,4), C8(205,4), C8(206,4), C8(207,4), C8(208,4), C8(209,4),
C8(210,4), C8(211,4), C8(212,4), C8(213,4), C8(214,4), C8(215,4),
C8(216,4), C8(217,4), C8(218,4), C8(219,4), C8(220,4), C8(221,4),
C8(222,4), C8(223,4), C8(224,4), C8(225,4), C8(226,4), C8(227,4),
C8(228,4), C8(229,4), C8(230,4), C8(231,4), C8(232,4), C8(233,4),
C8(234,4), C8(235,4), C8(236,4), C8(237,4), C8(238,4), C8(239,4),
C8(240,4), C8(241,4), C8(242,4), C8(243,4), C8(244,4), C8(245,4),
C8(246,4), C8(247,4), C8(248,4), C8(249,4), C8(250,4), C8(251,4),
C8(252,4), C8(253,4), C8(254,4), C8(255,4),
};
const FbBits fbStipple4Bits[16] = {
C4( 0,8), C4( 1,8), C4( 2,8), C4( 3,8), C4( 4,8), C4( 5,8),
C4( 6,8), C4( 7,8), C4( 8,8), C4( 9,8), C4( 10,8), C4( 11,8),
C4( 12,8), C4( 13,8), C4( 14,8), C4( 15,8),};
const FbBits fbStipple2Bits[4] = {
C2( 0,16), C2( 1,16), C2( 2,16), C2( 3,16),
};
const FbBits fbStipple1Bits[2] = {
C1( 0,32), C1( 1,32),
};
#endif
#if FB_UNIT == 64
const FbBits fbStipple16Bits[256] = {
C8( 0,4), C8( 1,4), C8( 2,4), C8( 3,4), C8( 4,4), C8( 5,4),
C8( 6,4), C8( 7,4), C8( 8,4), C8( 9,4), C8( 10,4), C8( 11,4),
C8( 12,4), C8( 13,4), C8( 14,4), C8( 15,4), C8( 16,4), C8( 17,4),
C8( 18,4), C8( 19,4), C8( 20,4), C8( 21,4), C8( 22,4), C8( 23,4),
C8( 24,4), C8( 25,4), C8( 26,4), C8( 27,4), C8( 28,4), C8( 29,4),
C8( 30,4), C8( 31,4), C8( 32,4), C8( 33,4), C8( 34,4), C8( 35,4),
C8( 36,4), C8( 37,4), C8( 38,4), C8( 39,4), C8( 40,4), C8( 41,4),
C8( 42,4), C8( 43,4), C8( 44,4), C8( 45,4), C8( 46,4), C8( 47,4),
C8( 48,4), C8( 49,4), C8( 50,4), C8( 51,4), C8( 52,4), C8( 53,4),
C8( 54,4), C8( 55,4), C8( 56,4), C8( 57,4), C8( 58,4), C8( 59,4),
C8( 60,4), C8( 61,4), C8( 62,4), C8( 63,4), C8( 64,4), C8( 65,4),
C8( 66,4), C8( 67,4), C8( 68,4), C8( 69,4), C8( 70,4), C8( 71,4),
C8( 72,4), C8( 73,4), C8( 74,4), C8( 75,4), C8( 76,4), C8( 77,4),
C8( 78,4), C8( 79,4), C8( 80,4), C8( 81,4), C8( 82,4), C8( 83,4),
C8( 84,4), C8( 85,4), C8( 86,4), C8( 87,4), C8( 88,4), C8( 89,4),
C8( 90,4), C8( 91,4), C8( 92,4), C8( 93,4), C8( 94,4), C8( 95,4),
C8( 96,4), C8( 97,4), C8( 98,4), C8( 99,4), C8(100,4), C8(101,4),
C8(102,4), C8(103,4), C8(104,4), C8(105,4), C8(106,4), C8(107,4),
C8(108,4), C8(109,4), C8(110,4), C8(111,4), C8(112,4), C8(113,4),
C8(114,4), C8(115,4), C8(116,4), C8(117,4), C8(118,4), C8(119,4),
C8(120,4), C8(121,4), C8(122,4), C8(123,4), C8(124,4), C8(125,4),
C8(126,4), C8(127,4), C8(128,4), C8(129,4), C8(130,4), C8(131,4),
C8(132,4), C8(133,4), C8(134,4), C8(135,4), C8(136,4), C8(137,4),
C8(138,4), C8(139,4), C8(140,4), C8(141,4), C8(142,4), C8(143,4),
C8(144,4), C8(145,4), C8(146,4), C8(147,4), C8(148,4), C8(149,4),
C8(150,4), C8(151,4), C8(152,4), C8(153,4), C8(154,4), C8(155,4),
C8(156,4), C8(157,4), C8(158,4), C8(159,4), C8(160,4), C8(161,4),
C8(162,4), C8(163,4), C8(164,4), C8(165,4), C8(166,4), C8(167,4),
C8(168,4), C8(169,4), C8(170,4), C8(171,4), C8(172,4), C8(173,4),
C8(174,4), C8(175,4), C8(176,4), C8(177,4), C8(178,4), C8(179,4),
C8(180,4), C8(181,4), C8(182,4), C8(183,4), C8(184,4), C8(185,4),
C8(186,4), C8(187,4), C8(188,4), C8(189,4), C8(190,4), C8(191,4),
C8(192,4), C8(193,4), C8(194,4), C8(195,4), C8(196,4), C8(197,4),
C8(198,4), C8(199,4), C8(200,4), C8(201,4), C8(202,4), C8(203,4),
C8(204,4), C8(205,4), C8(206,4), C8(207,4), C8(208,4), C8(209,4),
C8(210,4), C8(211,4), C8(212,4), C8(213,4), C8(214,4), C8(215,4),
C8(216,4), C8(217,4), C8(218,4), C8(219,4), C8(220,4), C8(221,4),
C8(222,4), C8(223,4), C8(224,4), C8(225,4), C8(226,4), C8(227,4),
C8(228,4), C8(229,4), C8(230,4), C8(231,4), C8(232,4), C8(233,4),
C8(234,4), C8(235,4), C8(236,4), C8(237,4), C8(238,4), C8(239,4),
C8(240,4), C8(241,4), C8(242,4), C8(243,4), C8(244,4), C8(245,4),
C8(246,4), C8(247,4), C8(248,4), C8(249,4), C8(250,4), C8(251,4),
C8(252,4), C8(253,4), C8(254,4), C8(255,4),
};
const FbBits fbStipple8Bits[256] = {
C8( 0,8), C8( 1,8), C8( 2,8), C8( 3,8), C8( 4,8), C8( 5,8),
C8( 6,8), C8( 7,8), C8( 8,8), C8( 9,8), C8( 10,8), C8( 11,8),
C8( 12,8), C8( 13,8), C8( 14,8), C8( 15,8), C8( 16,8), C8( 17,8),
C8( 18,8), C8( 19,8), C8( 20,8), C8( 21,8), C8( 22,8), C8( 23,8),
C8( 24,8), C8( 25,8), C8( 26,8), C8( 27,8), C8( 28,8), C8( 29,8),
C8( 30,8), C8( 31,8), C8( 32,8), C8( 33,8), C8( 34,8), C8( 35,8),
C8( 36,8), C8( 37,8), C8( 38,8), C8( 39,8), C8( 40,8), C8( 41,8),
C8( 42,8), C8( 43,8), C8( 44,8), C8( 45,8), C8( 46,8), C8( 47,8),
C8( 48,8), C8( 49,8), C8( 50,8), C8( 51,8), C8( 52,8), C8( 53,8),
C8( 54,8), C8( 55,8), C8( 56,8), C8( 57,8), C8( 58,8), C8( 59,8),
C8( 60,8), C8( 61,8), C8( 62,8), C8( 63,8), C8( 64,8), C8( 65,8),
C8( 66,8), C8( 67,8), C8( 68,8), C8( 69,8), C8( 70,8), C8( 71,8),
C8( 72,8), C8( 73,8), C8( 74,8), C8( 75,8), C8( 76,8), C8( 77,8),
C8( 78,8), C8( 79,8), C8( 80,8), C8( 81,8), C8( 82,8), C8( 83,8),
C8( 84,8), C8( 85,8), C8( 86,8), C8( 87,8), C8( 88,8), C8( 89,8),
C8( 90,8), C8( 91,8), C8( 92,8), C8( 93,8), C8( 94,8), C8( 95,8),
C8( 96,8), C8( 97,8), C8( 98,8), C8( 99,8), C8(100,8), C8(101,8),
C8(102,8), C8(103,8), C8(104,8), C8(105,8), C8(106,8), C8(107,8),
C8(108,8), C8(109,8), C8(110,8), C8(111,8), C8(112,8), C8(113,8),
C8(114,8), C8(115,8), C8(116,8), C8(117,8), C8(118,8), C8(119,8),
C8(120,8), C8(121,8), C8(122,8), C8(123,8), C8(124,8), C8(125,8),
C8(126,8), C8(127,8), C8(128,8), C8(129,8), C8(130,8), C8(131,8),
C8(132,8), C8(133,8), C8(134,8), C8(135,8), C8(136,8), C8(137,8),
C8(138,8), C8(139,8), C8(140,8), C8(141,8), C8(142,8), C8(143,8),
C8(144,8), C8(145,8), C8(146,8), C8(147,8), C8(148,8), C8(149,8),
C8(150,8), C8(151,8), C8(152,8), C8(153,8), C8(154,8), C8(155,8),
C8(156,8), C8(157,8), C8(158,8), C8(159,8), C8(160,8), C8(161,8),
C8(162,8), C8(163,8), C8(164,8), C8(165,8), C8(166,8), C8(167,8),
C8(168,8), C8(169,8), C8(170,8), C8(171,8), C8(172,8), C8(173,8),
C8(174,8), C8(175,8), C8(176,8), C8(177,8), C8(178,8), C8(179,8),
C8(180,8), C8(181,8), C8(182,8), C8(183,8), C8(184,8), C8(185,8),
C8(186,8), C8(187,8), C8(188,8), C8(189,8), C8(190,8), C8(191,8),
C8(192,8), C8(193,8), C8(194,8), C8(195,8), C8(196,8), C8(197,8),
C8(198,8), C8(199,8), C8(200,8), C8(201,8), C8(202,8), C8(203,8),
C8(204,8), C8(205,8), C8(206,8), C8(207,8), C8(208,8), C8(209,8),
C8(210,8), C8(211,8), C8(212,8), C8(213,8), C8(214,8), C8(215,8),
C8(216,8), C8(217,8), C8(218,8), C8(219,8), C8(220,8), C8(221,8),
C8(222,8), C8(223,8), C8(224,8), C8(225,8), C8(226,8), C8(227,8),
C8(228,8), C8(229,8), C8(230,8), C8(231,8), C8(232,8), C8(233,8),
C8(234,8), C8(235,8), C8(236,8), C8(237,8), C8(238,8), C8(239,8),
C8(240,8), C8(241,8), C8(242,8), C8(243,8), C8(244,8), C8(245,8),
C8(246,8), C8(247,8), C8(248,8), C8(249,8), C8(250,8), C8(251,8),
C8(252,8), C8(253,8), C8(254,8), C8(255,8),
};
const FbBits fbStipple4Bits[16] = {
C4( 0,16), C4( 1,16), C4( 2,16), C4( 3,16), C4( 4,16), C4( 5,16),
C4( 6,16), C4( 7,16), C4( 8,16), C4( 9,16), C4( 10,16), C4( 11,16),
C4( 12,16), C4( 13,16), C4( 14,16), C4( 15,16),};
const FbBits fbStipple2Bits[4] = {
C2( 0,32), C2( 1,32), C2( 2,32), C2( 3,32),
};
#define fbStipple1Bits 0
#endif
const FbBits * const fbStippleTable[] = {
0,
fbStipple1Bits,
fbStipple2Bits,
0,
fbStipple4Bits,
0,
0,
0,
fbStipple8Bits,
};
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