i810_cursor.c revision fa225cbc 
1
2/**************************************************************************
3
4Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
5All Rights Reserved.
6
7Permission is hereby granted, free of charge, to any person obtaining a
8copy of this software and associated documentation files (the
9"Software"), to deal in the Software without restriction, including
10without limitation the rights to use, copy, modify, merge, publish,
11distribute, sub license, and/or sell copies of the Software, and to
12permit persons to whom the Software is furnished to do so, subject to
13the following conditions:
14
15The above copyright notice and this permission notice (including the
16next paragraph) shall be included in all copies or substantial portions
17of the Software.
18
19THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
23ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26
27**************************************************************************/
28
29#ifdef HAVE_CONFIG_H
30#include "config.h"
31#endif
32
33/*
34 * Authors:
35 *   Keith Whitwell <keith@tungstengraphics.com>
36 *
37 * Add ARGB HW cursor support:
38 *   Alan Hourihane <alanh@tungstengraphics.com>
39 *
40 */
41
42#include "xf86.h"
43#include "xf86_OSproc.h"
44#include "compiler.h"
45
46#include "xf86fbman.h"
47
48#include "i810.h"
49
50static Bool I810UseHWCursorARGB(ScreenPtr pScreen, CursorPtr pCurs);
51static void I810LoadCursorARGB(ScrnInfoPtr pScrn, CursorPtr pCurs);
52static void I810LoadCursorImage(ScrnInfoPtr pScrn, unsigned char *src);
53static void I810ShowCursor(ScrnInfoPtr pScrn);
54static void I810HideCursor(ScrnInfoPtr pScrn);
55static void I810SetCursorColors(ScrnInfoPtr pScrn, int bg, int fb);
56static void I810SetCursorPosition(ScrnInfoPtr pScrn, int x, int y);
57static Bool I810UseHWCursor(ScreenPtr pScrn, CursorPtr pCurs);
58
59Bool
60I810CursorInit(ScreenPtr pScreen)
61{
62   ScrnInfoPtr pScrn;
63   I810Ptr pI810;
64   xf86CursorInfoPtr infoPtr;
65
66   pScrn = xf86Screens[pScreen->myNum];
67   pI810 = I810PTR(pScrn);
68   pI810->CursorInfoRec = infoPtr = xf86CreateCursorInfoRec();
69   if (!infoPtr)
70      return FALSE;
71
72   infoPtr->MaxWidth = 64;
73   infoPtr->MaxHeight = 64;
74   infoPtr->Flags = (HARDWARE_CURSOR_TRUECOLOR_AT_8BPP |
75		     HARDWARE_CURSOR_BIT_ORDER_MSBFIRST |
76		     HARDWARE_CURSOR_INVERT_MASK |
77		     HARDWARE_CURSOR_SWAP_SOURCE_AND_MASK |
78		     HARDWARE_CURSOR_AND_SOURCE_WITH_MASK |
79		     HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_64 | 0);
80
81   infoPtr->SetCursorColors = I810SetCursorColors;
82   infoPtr->SetCursorPosition = I810SetCursorPosition;
83   infoPtr->LoadCursorImage = I810LoadCursorImage;
84   infoPtr->HideCursor = I810HideCursor;
85   infoPtr->ShowCursor = I810ShowCursor;
86   infoPtr->UseHWCursor = I810UseHWCursor;
87#ifdef ARGB_CURSOR
88   pI810->CursorIsARGB = FALSE;
89
90   if (!pI810->CursorARGBPhysical) {
91      infoPtr->UseHWCursorARGB = I810UseHWCursorARGB;
92      infoPtr->LoadCursorARGB = I810LoadCursorARGB;
93   }
94#endif
95
96   return xf86InitCursor(pScreen, infoPtr);
97}
98
99#ifdef ARGB_CURSOR
100#include "cursorstr.h"
101
102static Bool I810UseHWCursorARGB (ScreenPtr pScreen, CursorPtr pCurs)
103{
104   ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
105   I810Ptr pI810 = I810PTR(pScrn);
106
107   if (!pI810->CursorARGBPhysical)
108      return FALSE;
109
110   if (pCurs->bits->height <= 64 && pCurs->bits->width <= 64)
111      return TRUE;
112
113   return FALSE;
114}
115
116static void I810LoadCursorARGB (ScrnInfoPtr pScrn, CursorPtr pCurs)
117{
118   I810Ptr pI810 = I810PTR(pScrn);
119   uint32_t *pcurs = (uint32_t *) (pI810->FbBase + pI810->CursorStart);
120   uint32_t *image = (uint32_t *) pCurs->bits->argb;
121   int x, y, w, h;
122
123#ifdef ARGB_CURSOR
124   pI810->CursorIsARGB = TRUE;
125#endif
126
127   w = pCurs->bits->width;
128   h = pCurs->bits->height;
129
130   for (y = 0; y < h; y++)
131   {
132      for (x = 0; x < w; x++)
133         *pcurs++ = *image++;
134         for (; x < 64; x++)
135            *pcurs++ = 0;
136   }
137
138   for (; y < 64; y++)
139      for (x = 0; x < 64; x++)
140         *pcurs++ = 0;
141}
142#endif
143
144static Bool
145I810UseHWCursor(ScreenPtr pScreen, CursorPtr pCurs)
146{
147   ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
148   I810Ptr pI810 = I810PTR(pScrn);
149
150   if (!pI810->CursorPhysical)
151      return FALSE;
152   else
153      return TRUE;
154}
155
156static void
157I810LoadCursorImage(ScrnInfoPtr pScrn, unsigned char *src)
158{
159   I810Ptr pI810 = I810PTR(pScrn);
160   uint8_t *pcurs = (uint8_t *) (pI810->FbBase + pI810->CursorStart);
161   int x, y;
162
163#ifdef ARGB_CURSOR
164   pI810->CursorIsARGB = FALSE;
165#endif
166
167   for (y = 0; y < 64; y++) {
168      for (x = 0; x < 64 / 4; x++) {
169	 *pcurs++ = *src++;
170      }
171   }
172}
173
174static void
175I810SetCursorPosition(ScrnInfoPtr pScrn, int x, int y)
176{
177   I810Ptr pI810 = I810PTR(pScrn);
178   int flag;
179
180   x += pI810->CursorOffset;
181
182   if (x >= 0)
183      flag = CURSOR_X_POS;
184   else {
185      flag = CURSOR_X_NEG;
186      x = -x;
187   }
188
189   OUTREG8(CURSOR_X_LO, x & 0xFF);
190   OUTREG8(CURSOR_X_HI, (((x >> 8) & 0x07) | flag));
191
192   if (y >= 0)
193      flag = CURSOR_Y_POS;
194   else {
195      flag = CURSOR_Y_NEG;
196      y = -y;
197   }
198   OUTREG8(CURSOR_Y_LO, y & 0xFF);
199   OUTREG8(CURSOR_Y_HI, (((y >> 8) & 0x07) | flag));
200
201   if (pI810->CursorIsARGB)
202      OUTREG(CURSOR_BASEADDR, pI810->CursorARGBPhysical);
203   else
204      OUTREG(CURSOR_BASEADDR, pI810->CursorPhysical);
205}
206
207static void
208I810ShowCursor(ScrnInfoPtr pScrn)
209{
210   I810Ptr pI810 = I810PTR(pScrn);
211   unsigned char tmp;
212
213   if (pI810->CursorIsARGB) {
214      OUTREG(CURSOR_BASEADDR, pI810->CursorARGBPhysical);
215      OUTREG8(CURSOR_CONTROL, CURSOR_ORIGIN_DISPLAY | CURSOR_MODE_64_ARGB_AX);
216   } else {
217      OUTREG(CURSOR_BASEADDR, pI810->CursorPhysical);
218      OUTREG8(CURSOR_CONTROL, CURSOR_ORIGIN_DISPLAY | CURSOR_MODE_64_3C);
219   }
220
221   tmp = INREG8(PIXPIPE_CONFIG_0);
222   tmp |= HW_CURSOR_ENABLE;
223   OUTREG8(PIXPIPE_CONFIG_0, tmp);
224}
225
226static void
227I810HideCursor(ScrnInfoPtr pScrn)
228{
229   unsigned char tmp;
230   I810Ptr pI810 = I810PTR(pScrn);
231
232   tmp = INREG8(PIXPIPE_CONFIG_0);
233   tmp &= ~HW_CURSOR_ENABLE;
234   OUTREG8(PIXPIPE_CONFIG_0, tmp);
235}
236
237static void
238I810SetCursorColors(ScrnInfoPtr pScrn, int bg, int fg)
239{
240   int tmp;
241   I810Ptr pI810 = I810PTR(pScrn);
242
243#ifdef ARGB_CURSOR
244   if (pI810->CursorIsARGB)
245      return;
246#endif
247
248   tmp = INREG8(PIXPIPE_CONFIG_0);
249   tmp |= EXTENDED_PALETTE;
250   OUTREG8(PIXPIPE_CONFIG_0, tmp);
251
252   pI810->writeStandard(pI810, DACMASK, 0xFF);
253   pI810->writeStandard(pI810, DACWX, 0x04);
254
255   pI810->writeStandard(pI810, DACDATA, (bg & 0x00FF0000) >> 16);
256   pI810->writeStandard(pI810, DACDATA, (bg & 0x0000FF00) >> 8);
257   pI810->writeStandard(pI810, DACDATA, (bg & 0x000000FF));
258
259   pI810->writeStandard(pI810, DACDATA, (fg & 0x00FF0000) >> 16);
260   pI810->writeStandard(pI810, DACDATA, (fg & 0x0000FF00) >> 8);
261   pI810->writeStandard(pI810, DACDATA, (fg & 0x000000FF));
262
263   tmp = INREG8(PIXPIPE_CONFIG_0);
264   tmp &= ~EXTENDED_PALETTE;
265   OUTREG8(PIXPIPE_CONFIG_0, tmp);
266}
267