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
|
/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/apm/apm_cursor.c,v 1.14 2000/06/30 18:27:02 dawes Exp $ */
#include "X.h"
#include "Xproto.h"
#include "misc.h"
#include "input.h"
#include "cursorstr.h"
#include "regionstr.h"
#include "scrnintstr.h"
#include "servermd.h"
#include "windowstr.h"
#include "mfb.h"
#include "mipointer.h"
#include "apm.h"
#define CURSORWIDTH 64
#define CURSORHEIGHT 64
#define CURSORSIZE (CURSORWIDTH * CURSORHEIGHT / 8)
#define CURSORALIGN ((CURSORSIZE + 1023) & ~1023l)
static void ApmShowCursor(ScrnInfoPtr pScrn);
static void ApmHideCursor(ScrnInfoPtr pScrn);
static void ApmSetCursorPosition(ScrnInfoPtr pScrn, int x, int y);
static void ApmSetCursorColors(ScrnInfoPtr pScrn, int bg, int fg);
static void ApmLoadCursorImage(ScrnInfoPtr pScrn, u8* data);
static Bool ApmUseHWCursor(ScreenPtr pScreen, CursorPtr pCurs);
static u8 ConvertTable[256];
/* Inline functions */
static __inline__ void
WaitForFifo(ApmPtr pApm, int slots)
{
if (!pApm->UsePCIRetry) {
volatile int i;
#define MAXLOOP 1000000
for(i = 0; i < MAXLOOP; i++) {
if ((STATUS() & STATUS_FIFO) >= slots)
break;
}
if (i == MAXLOOP) {
unsigned int status = STATUS();
WRXB(0x1FF, 0);
if (!xf86ServerIsExiting())
FatalError("Hung in WaitForFifo() (Status = 0x%08X)\n", status);
}
}
}
void ApmHWCursorReserveSpace(ApmPtr pApm)
{
pApm->OffscreenReserved += 2 * CURSORALIGN;
pApm->DisplayedCursorAddress = pApm->BaseCursorAddress =
pApm->CursorAddress = 1024 * xf86Screens[pApm->pScreen->myNum]->videoRam -
pApm->OffscreenReserved;
}
int ApmHWCursorInit(ScreenPtr pScreen)
{
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
APMDECL(pScrn);
xf86CursorInfoPtr infoPtr;
u32 i;
infoPtr = xf86CreateCursorInfoRec();
if (!infoPtr)
return FALSE;
pApm->CursorInfoRec = infoPtr;
infoPtr->MaxWidth = CURSORWIDTH;
infoPtr->MaxHeight = CURSORHEIGHT;
infoPtr->Flags = HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_1;
infoPtr->SetCursorColors = ApmSetCursorColors;
infoPtr->SetCursorPosition = ApmSetCursorPosition;
infoPtr->LoadCursorImage = ApmLoadCursorImage;
infoPtr->HideCursor = ApmHideCursor;
infoPtr->ShowCursor = ApmShowCursor;
infoPtr->UseHWCursor = ApmUseHWCursor;
/*ErrorF("%s %s: %s: Using hardware cursor (XAA).\n",
XCONFIG_PROBED, vga256InfoRec.name, vga256InfoRec.chipset);
if(XAACursorInfoRec.Flags & USE_HARDWARE_CURSOR) {
vgaHWCursor.Init = XAACursorInit;
vgaHWCursor.Initialized = TRUE;
vgaHWCursor.Restore = XAARestoreCursor;
vgaHWCursor.Warp = XAAWarpCursor;
vgaHWCursor.QueryBestSize = XAAQueryBestSize;
}*/
/* Set up the convert table for the input cursor data */
for (i = 0; i < 256; i++)
ConvertTable[i] = ((~i) & 0xAA) | (i & (i >> 1) & 0x55);
return xf86InitCursor(pScreen, infoPtr);
}
static void
ApmShowCursor(ScrnInfoPtr pScrn)
{
APMDECL(pScrn);
WaitForFifo(pApm, 2);
WRXW(0x144, pApm->CursorAddress >> 10);
WRXB(0x140, 1);
pApm->DisplayedCursorAddress = pApm->CursorAddress;
}
static void
ApmHideCursor(ScrnInfoPtr pScrn)
{
APMDECL(pScrn);
WaitForFifo(pApm, 1);
WRXB(0x140, 0);
}
static Bool ApmUseHWCursor(ScreenPtr pScreen, CursorPtr pCurs)
{
return APMPTR(xf86Screens[pScreen->myNum])->CurrentLayout.bitsPerPixel >= 8;
}
static void
ApmSetCursorPosition(ScrnInfoPtr pScrn, int x, int y)
{
APMDECL(pScrn);
int xoff, yoff;
if (x < -CURSORWIDTH || y < -CURSORHEIGHT) {
WaitForFifo(pApm, 1);
WRXB(0x140, 0);
return;
}
if (x < 0) {
xoff = -x;
x = 0;
}
else
xoff = 0;
if (y < 0) {
yoff = -y;
y = 0;
}
else
yoff = 0;
WaitForFifo(pApm, 2);
WRXW(0x14C, (yoff << 8) | (xoff & 0xFF));
WRXL(0x148, (y << 16) | (x & 0xFFFF));
}
static void
ApmSetCursorColors(ScrnInfoPtr pScrn, int bg, int fg)
{
APMDECL(pScrn);
u16 packedcolfg, packedcolbg;
if (pApm->CurrentLayout.bitsPerPixel == 8)
{
WaitForFifo(pApm, 2);
WRXB(0x141, fg);
WRXB(0x142, bg);
}
else
{
packedcolfg =
((fg & 0xE00000) >> 16) |
((fg & 0x00E000) >> 11) |
((fg & 0x0000C0) >> 6);
packedcolbg =
((bg & 0xE00000) >> 16) |
((bg & 0x00E000) >> 11) |
((bg & 0x0000C0) >> 6);
WaitForFifo(pApm, 2);
WRXB(0x141, packedcolfg);
WRXB(0x142, packedcolbg);
}
}
static void
ApmLoadCursorImage(ScrnInfoPtr pScrn, u8* data)
{
APMDECL(pScrn);
u32 i;
u8 tmp[2 * CURSORSIZE];
/* Correct input data */
for (i = 0; i < sizeof tmp; i++)
tmp[i] = ConvertTable[data[i]];
/*
* To avoid flicker.
* Note: 2*pApm->BaseCursorAddress + CURSORALIGN (=1024) < 2^31 all the time.
*/
pApm->CursorAddress = 2*pApm->BaseCursorAddress + CURSORALIGN - pApm->DisplayedCursorAddress;
memcpy((u8*)pApm->FbBase + pApm->CursorAddress, tmp, sizeof tmp);
}
|
