cg14_cursor.c revision 0a3f7816 
1/* $NetBSD: cg14_cursor.c,v 1.2 2013/06/19 13:20:05 macallan Exp $ */
2/*
3 * Copyright (c) 2005 Michael Lorenz
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 *    - Redistributions of source code must retain the above copyright
11 *      notice, this list of conditions and the following disclaimer.
12 *    - Redistributions in binary form must reproduce the above
13 *      copyright notice, this list of conditions and the following
14 *      disclaimer in the documentation and/or other materials provided
15 *      with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
20 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
21 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
23 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
27 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
29 *
30 */
31
32#include <sys/types.h>
33
34/* all driver need this */
35#include "xf86.h"
36#include "xf86_OSproc.h"
37
38#include "cg14.h"
39
40static void CG14LoadCursorImage(ScrnInfoPtr pScrn, unsigned char *src);
41static void CG14SetCursorPosition(ScrnInfoPtr pScrn, int x, int y);
42static void CG14SetCursorColors(ScrnInfoPtr pScrn, int bg, int fg);
43
44static void
45CG14LoadCursorImage(ScrnInfoPtr pScrn, unsigned char *src)
46{
47	Cg14Ptr pCG14 = GET_CG14_FROM_SCRN(pScrn);
48	uint32_t buf[64];
49	uint32_t *img = buf;
50	int i;
51
52	memcpy(buf, src, 256); /* to make sure it's aligned */
53	for (i = 0; i < 32; i++) {
54		pCG14->curs->curs_plane0[i] = *img;
55		img++;
56	}
57	for (i = 0; i < 32; i++) {
58		pCG14->curs->curs_plane1[i] = *img;
59		img++;
60	}
61}
62
63void
64CG14ShowCursor(ScrnInfoPtr pScrn)
65{
66	Cg14Ptr pCG14 = GET_CG14_FROM_SCRN(pScrn);
67
68	pCG14->curs->curs_ctl = CG14_CURS_ENABLE;
69}
70
71void
72CG14HideCursor(ScrnInfoPtr pScrn)
73{
74	Cg14Ptr pCG14 = GET_CG14_FROM_SCRN(pScrn);
75
76	pCG14->curs->curs_ctl = 0;
77}
78
79static void
80CG14SetCursorPosition(ScrnInfoPtr pScrn, int x, int y)
81{
82	Cg14Ptr pCG14 = GET_CG14_FROM_SCRN(pScrn);
83
84	pCG14->curs->curs_x = x;
85	pCG14->curs->curs_y = y;
86}
87
88static void
89CG14SetCursorColors(ScrnInfoPtr pScrn, int bg, int fg)
90{
91	Cg14Ptr pCG14 = GET_CG14_FROM_SCRN(pScrn);
92#define RGB2BGR(x) (((x & 0xff0000) >> 16) | (x & 0xff00) | ((x & 0xff) << 16))
93	pCG14->curs->curs_color1 = RGB2BGR(bg);
94	pCG14->curs->curs_color2 = RGB2BGR(fg);
95}
96
97Bool
98CG14SetupCursor(ScreenPtr pScreen)
99{
100	ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
101	Cg14Ptr pCG14 = GET_CG14_FROM_SCRN(pScrn);
102	xf86CursorInfoPtr infoPtr;
103
104	pCG14->curs->curs_ctl = 0;
105
106	infoPtr = xf86CreateCursorInfoRec();
107	if(!infoPtr) return FALSE;
108
109	pCG14->CursorInfoRec = infoPtr;
110
111	xf86Msg(X_INFO, "HW cursor enabled\n");
112
113	infoPtr->MaxWidth = 32;
114	infoPtr->MaxHeight = 32;
115
116	infoPtr->Flags = HARDWARE_CURSOR_AND_SOURCE_WITH_MASK |
117	    HARDWARE_CURSOR_TRUECOLOR_AT_8BPP |
118	    HARDWARE_CURSOR_SWAP_SOURCE_AND_MASK;
119	infoPtr->SetCursorColors = CG14SetCursorColors;
120	infoPtr->SetCursorPosition = CG14SetCursorPosition;
121	infoPtr->LoadCursorImage = CG14LoadCursorImage;
122	infoPtr->HideCursor = CG14HideCursor;
123	infoPtr->ShowCursor = CG14ShowCursor;
124	infoPtr->UseHWCursor = NULL;
125
126	return xf86InitCursor(pScreen, infoPtr);
127}
128