leo_accel.c revision 4a041c5b 
1/*
2 * Acceleration for the LEO (ZX) framebuffer.
3 *
4 * Copyright (C) 1999, 2000 Jakub Jelinek (jakub@redhat.com)
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19 * JAKUB JELINEK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
20 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 */
23/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/sunleo/leo_accel.c,v 1.2tsi Exp $ */
24
25#ifdef HAVE_CONFIG_H
26#include "config.h"
27#endif
28
29#define	PSZ	32
30
31#include	"scrnintstr.h"
32#include	"pixmapstr.h"
33#include	"regionstr.h"
34#include	"mistruct.h"
35#include	<X11/fonts/fontstruct.h>
36#include	"dixfontstr.h"
37#include	"fb.h"
38#include	"mibstore.h"
39#include	"mifillarc.h"
40#include	"miwideline.h"
41#include	"mi.h"
42
43#include	"leo.h"
44
45int LeoGCPrivateIndex;
46
47int	leoRopTable[16] = {
48	LEO_ATTR_RGBE_ENABLE|LEO_ROP_ZERO,		/* GXclear */
49	LEO_ATTR_RGBE_ENABLE|LEO_ROP_NEW_AND_OLD,	/* GXand */
50	LEO_ATTR_RGBE_ENABLE|LEO_ROP_NEW_AND_NOLD,	/* GXandReverse */
51	LEO_ATTR_RGBE_ENABLE|LEO_ROP_NEW,		/* GXcopy */
52	LEO_ATTR_RGBE_ENABLE|LEO_ROP_NNEW_AND_OLD,	/* GXandInverted */
53	LEO_ATTR_RGBE_ENABLE|LEO_ROP_OLD,		/* GXnoop */
54	LEO_ATTR_RGBE_ENABLE|LEO_ROP_NEW_XOR_OLD,	/* GXxor */
55	LEO_ATTR_RGBE_ENABLE|LEO_ROP_NEW_OR_OLD,	/* GXor */
56	LEO_ATTR_RGBE_ENABLE|LEO_ROP_NNEW_AND_NOLD,	/* GXnor */
57	LEO_ATTR_RGBE_ENABLE|LEO_ROP_NNEW_XOR_NOLD,	/* GXequiv */
58	LEO_ATTR_RGBE_ENABLE|LEO_ROP_NOLD,		/* GXinvert */
59	LEO_ATTR_RGBE_ENABLE|LEO_ROP_NEW_OR_NOLD,	/* GXorReverse */
60	LEO_ATTR_RGBE_ENABLE|LEO_ROP_NNEW,		/* GXcopyInverted */
61	LEO_ATTR_RGBE_ENABLE|LEO_ROP_NNEW_OR_OLD,	/* GXorInverted */
62	LEO_ATTR_RGBE_ENABLE|LEO_ROP_NNEW_OR_NOLD,	/* GXnand */
63	LEO_ATTR_RGBE_ENABLE|LEO_ROP_ONES		/* GXset */
64};
65
66void LeoVtChange (ScreenPtr pScreen, int enter)
67{
68	ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
69	LeoPtr pLeo = GET_LEO_FROM_SCRN (pScrn);
70	LeoCommand0 *lc0 = pLeo->lc0;
71	LeoDraw *ld0 = pLeo->ld0;
72
73	ld0->wid = 1;
74	ld0->widclip = 0;
75	ld0->wmask = 0xffff;
76	ld0->planemask = 0xffffff;
77	ld0->rop = LEO_ATTR_WE_ENABLE|LEO_ATTR_RGBE_ENABLE|LEO_ATTR_FORCE_WID;
78	ld0->fg = 0;
79	ld0->vclipmin = 0;
80	ld0->vclipmax = (pLeo->psdp->width - 1) | ((pLeo->psdp->height - 1) << 16);
81
82	while (lc0->csr & LEO_CSR_BLT_BUSY);
83
84	lc0->extent = (pLeo->psdp->width - 1) | ((pLeo->psdp->height - 1) << 11);
85	lc0->fill = 0;
86
87	while (lc0->csr & LEO_CSR_BLT_BUSY);
88
89	lc0->addrspace = LEO_ADDRSPC_OBGR;
90	ld0->rop = LEO_ATTR_RGBE_ENABLE|LEO_ROP_NEW;
91}
92
93extern Bool LeoCreateGC (GCPtr pGC);
94
95Bool LeoAccelInit (ScreenPtr pScreen, LeoPtr pLeo)
96{
97	LeoCommand0 *lc0;
98	LeoDraw *ld0;
99
100#if LEO_OLDPRIV
101	static int LeoGeneration;
102	if (serverGeneration != LeoGeneration) {
103		LeoGCPrivateIndex = AllocateGCPrivateIndex();
104		LeoGeneration = serverGeneration;
105	}
106	if (!AllocateGCPrivate(pScreen, LeoGCPrivateIndex, sizeof(LeoPrivGCRec)))
107		return FALSE;
108#else
109	if (!dixRequestPrivate(&LeoGCPrivateIndex, sizeof(LeoPrivGCRec)))
110		return FALSE;
111#endif
112
113	pLeo->lc0 = lc0 = (LeoCommand0 *) ((char *)pLeo->fb + LEO_LC0_VOFF);
114	pLeo->ld0 = ld0 = (LeoDraw *) ((char *)pLeo->fb + LEO_LD0_VOFF);
115
116	if (!pLeo->NoAccel) /* XXX do nothing */ ;
117
118	/* We will now clear the screen: we'll draw a rectangle covering all the
119	 * viewscreen, using a 'blackness' ROP.
120	 */
121	ld0->wid = 1;
122	ld0->widclip = 0;
123	ld0->wmask = 0xffff;
124	ld0->planemask = 0xffffff;
125	ld0->rop = LEO_ATTR_WE_ENABLE|LEO_ATTR_RGBE_ENABLE|LEO_ATTR_FORCE_WID;
126	ld0->fg = 0;
127	ld0->vclipmin = 0;
128	ld0->vclipmax = (pLeo->psdp->width - 1) | ((pLeo->psdp->height - 1) << 16);
129	pLeo->vclipmax = (pLeo->psdp->width - 1) | ((pLeo->psdp->height - 1) << 16);
130	pLeo->width = pLeo->psdp->width;
131	pLeo->height = pLeo->psdp->height;
132
133	while (lc0->csr & LEO_CSR_BLT_BUSY);
134
135	lc0->extent = (pLeo->psdp->width - 1) | ((pLeo->psdp->height - 1) << 11);
136	lc0->fill = 0;
137
138	while (lc0->csr & LEO_CSR_BLT_BUSY);
139
140	lc0->addrspace = LEO_ADDRSPC_OBGR;
141	ld0->rop = LEO_ATTR_RGBE_ENABLE|LEO_ROP_NEW;
142
143	/* Success */
144	return TRUE;
145}
146