1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
|
/*
* Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany.
*
* 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 Thomas Roell not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Thomas Roell makes no representations
* about the suitability of this software for any purpose. It is provided
* "as is" without express or implied warranty.
*
* THOMAS ROELL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THOMAS ROELL 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_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include <X11/X.h>
#include <X11/Xproto.h>
#include "windowstr.h"
#include "compiler.h"
#include "mipointer.h"
#include "micmap.h"
#include "xf86.h"
#include "vgaHW.h"
#include <X11/extensions/xf86dgaproto.h>
#include "dgaproc.h"
#define NOMAPYET (ColormapPtr) 0
int
vgaListInstalledColormaps(pScreen, pmaps)
ScreenPtr pScreen;
Colormap *pmaps;
{
/* By the time we are processing requests, we can guarantee that there
* is always a colormap installed */
*pmaps = GetInstalledmiColormap(pScreen)->mid;
return 1;
}
int
vgaGetInstalledColormaps(pScreen, pmaps)
ScreenPtr pScreen;
ColormapPtr *pmaps;
{
/* By the time we are processing requests, we can guarantee that there
* is always a colormap installed */
*pmaps = GetInstalledmiColormap(pScreen);
return 1;
}
int
vgaCheckColorMap(ColormapPtr pmap)
{
return (pmap != GetInstalledmiColormap(pmap->pScreen));
}
void
vgaStoreColors(pmap, ndef, pdefs)
ColormapPtr pmap;
int ndef;
xColorItem *pdefs;
{
int i;
unsigned char *cmap, *tmp = NULL;
xColorItem directDefs[256];
Bool new_overscan = FALSE;
Bool writeColormap;
/* This can get called before the ScrnInfoRec is installed so we
can't rely on getting it with XF86SCRNINFO() */
int scrnIndex = pmap->pScreen->myNum;
ScrnInfoPtr scrninfp = xf86Screens[scrnIndex];
vgaHWPtr hwp = VGAHWPTR(scrninfp);
unsigned char overscan = hwp->ModeReg.Attribute[OVERSCAN];
unsigned char tmp_overscan = 0;
if (vgaCheckColorMap(pmap))
return;
if ((pmap->pVisual->class | DynamicClass) == DirectColor) {
ndef = miExpandDirectColors(pmap, ndef, pdefs, directDefs);
pdefs = directDefs;
}
writeColormap = scrninfp->vtSema;
if (DGAAvailable(scrnIndex)) {
writeColormap = writeColormap ||
(DGAGetDirectMode(scrnIndex) &&
!(DGAGetFlags(scrnIndex) & XF86DGADirectColormap)) ||
(DGAGetFlags(scrnIndex) & XF86DGAHasColormap);
}
if (writeColormap)
hwp->enablePalette(hwp);
for (i = 0; i < ndef; i++) {
if (pdefs[i].pixel == overscan) {
new_overscan = TRUE;
}
cmap = &(hwp->ModeReg.DAC[pdefs[i].pixel * 3]);
if (scrninfp->rgbBits == 8) {
cmap[0] = pdefs[i].red >> 8;
cmap[1] = pdefs[i].green >> 8;
cmap[2] = pdefs[i].blue >> 8;
}
else {
cmap[0] = pdefs[i].red >> 10;
cmap[1] = pdefs[i].green >> 10;
cmap[2] = pdefs[i].blue >> 10;
}
#if 0
if (clgd6225Lcd) {
/* The LCD doesn't like white */
if (cmap[0] == 63)
cmap[0] = 62;
if (cmap[1] == 63)
cmap[1] = 62;
if (cmap[2] == 63)
cmap[2] = 62;
}
#endif
if (writeColormap) {
if (hwp->ShowOverscan && i == 255)
continue;
hwp->writeDacWriteAddr(hwp, pdefs[i].pixel);
DACDelay(hwp);
hwp->writeDacData(hwp, cmap[0]);
DACDelay(hwp);
hwp->writeDacData(hwp, cmap[1]);
DACDelay(hwp);
hwp->writeDacData(hwp, cmap[2]);
DACDelay(hwp);
}
}
if (new_overscan && !hwp->ShowOverscan) {
new_overscan = FALSE;
for (i = 0; i < ndef; i++) {
if (pdefs[i].pixel == overscan) {
if ((pdefs[i].red != 0) ||
(pdefs[i].green != 0) || (pdefs[i].blue != 0)) {
new_overscan = TRUE;
tmp_overscan = overscan;
tmp = &(hwp->ModeReg.DAC[pdefs[i].pixel * 3]);
}
break;
}
}
if (new_overscan) {
/*
* Find a black pixel, or the nearest match.
*/
for (i = 255; i >= 0; i--) {
cmap = &(hwp->ModeReg.DAC[i * 3]);
if ((cmap[0] == 0) && (cmap[1] == 0) && (cmap[2] == 0)) {
overscan = i;
break;
}
else {
if ((cmap[0] < tmp[0]) &&
(cmap[1] < tmp[1]) && (cmap[2] < tmp[2])) {
tmp = cmap;
tmp_overscan = i;
}
}
}
if (i < 0) {
overscan = tmp_overscan;
}
hwp->ModeReg.Attribute[OVERSCAN] = overscan;
if (writeColormap) {
hwp->writeAttr(hwp, OVERSCAN, overscan);
}
}
}
if (writeColormap)
hwp->disablePalette(hwp);
}
void
vgaInstallColormap(pmap)
ColormapPtr pmap;
{
ColormapPtr oldmap = GetInstalledmiColormap(pmap->pScreen);
int entries;
Pixel *ppix;
xrgb *prgb;
xColorItem *defs;
int i;
if (pmap == oldmap)
return;
if ((pmap->pVisual->class | DynamicClass) == DirectColor)
entries = (pmap->pVisual->redMask |
pmap->pVisual->greenMask | pmap->pVisual->blueMask) + 1;
else
entries = pmap->pVisual->ColormapEntries;
ppix = (Pixel *) malloc(entries * sizeof(Pixel));
prgb = (xrgb *) malloc(entries * sizeof(xrgb));
defs = (xColorItem *) malloc(entries * sizeof(xColorItem));
if (oldmap != NOMAPYET)
WalkTree(pmap->pScreen, TellLostMap, &oldmap->mid);
SetInstalledmiColormap(pmap->pScreen, pmap);
for (i = 0; i < entries; i++)
ppix[i] = i;
QueryColors(pmap, entries, ppix, prgb, serverClient);
for (i = 0; i < entries; i++) { /* convert xrgbs to xColorItems */
defs[i].pixel = ppix[i];
defs[i].red = prgb[i].red;
defs[i].green = prgb[i].green;
defs[i].blue = prgb[i].blue;
defs[i].flags = DoRed | DoGreen | DoBlue;
}
pmap->pScreen->StoreColors(pmap, entries, defs);
WalkTree(pmap->pScreen, TellGainedMap, &pmap->mid);
free(ppix);
free(prgb);
free(defs);
}
void
vgaUninstallColormap(pmap)
ColormapPtr pmap;
{
ColormapPtr defColormap;
if (pmap != GetInstalledmiColormap(pmap->pScreen))
return;
dixLookupResourceByType((pointer *) &defColormap,
pmap->pScreen->defColormap, RT_COLORMAP,
serverClient, DixInstallAccess);
if (defColormap == GetInstalledmiColormap(pmap->pScreen))
return;
(*pmap->pScreen->InstallColormap) (defColormap);
}
void
vgaHandleColormaps(ScreenPtr pScreen, ScrnInfoPtr scrnp)
{
if (scrnp->bitsPerPixel > 1) {
if (scrnp->bitsPerPixel <= 8) { /* For 8bpp SVGA and VGA16 */
pScreen->InstallColormap = vgaInstallColormap;
pScreen->UninstallColormap = vgaUninstallColormap;
pScreen->ListInstalledColormaps = vgaListInstalledColormaps;
pScreen->StoreColors = vgaStoreColors;
}
}
}
|
