leo_accel.c revision cce06770 
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
45#if LEO_OLDPRIV
46int LeoGCPrivateIndex;
47#else
48DevPrivateKeyRec LeoGCPrivateIndex;
49#endif
50
51int	leoRopTable[16] = {
52	LEO_ATTR_RGBE_ENABLE|LEO_ROP_ZERO,		/* GXclear */
53	LEO_ATTR_RGBE_ENABLE|LEO_ROP_NEW_AND_OLD,	/* GXand */
54	LEO_ATTR_RGBE_ENABLE|LEO_ROP_NEW_AND_NOLD,	/* GXandReverse */
55	LEO_ATTR_RGBE_ENABLE|LEO_ROP_NEW,		/* GXcopy */
56	LEO_ATTR_RGBE_ENABLE|LEO_ROP_NNEW_AND_OLD,	/* GXandInverted */
57	LEO_ATTR_RGBE_ENABLE|LEO_ROP_OLD,		/* GXnoop */
58	LEO_ATTR_RGBE_ENABLE|LEO_ROP_NEW_XOR_OLD,	/* GXxor */
59	LEO_ATTR_RGBE_ENABLE|LEO_ROP_NEW_OR_OLD,	/* GXor */
60	LEO_ATTR_RGBE_ENABLE|LEO_ROP_NNEW_AND_NOLD,	/* GXnor */
61	LEO_ATTR_RGBE_ENABLE|LEO_ROP_NNEW_XOR_NOLD,	/* GXequiv */
62	LEO_ATTR_RGBE_ENABLE|LEO_ROP_NOLD,		/* GXinvert */
63	LEO_ATTR_RGBE_ENABLE|LEO_ROP_NEW_OR_NOLD,	/* GXorReverse */
64	LEO_ATTR_RGBE_ENABLE|LEO_ROP_NNEW,		/* GXcopyInverted */
65	LEO_ATTR_RGBE_ENABLE|LEO_ROP_NNEW_OR_OLD,	/* GXorInverted */
66	LEO_ATTR_RGBE_ENABLE|LEO_ROP_NNEW_OR_NOLD,	/* GXnand */
67	LEO_ATTR_RGBE_ENABLE|LEO_ROP_ONES		/* GXset */
68};
69
70void LeoVtChange (ScreenPtr pScreen, int enter)
71{
72	ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
73	LeoPtr pLeo = GET_LEO_FROM_SCRN (pScrn);
74	LeoCommand0 *lc0 = pLeo->lc0;
75	LeoDraw *ld0 = pLeo->ld0;
76
77	ld0->wid = 1;
78	ld0->widclip = 0;
79	ld0->wmask = 0xffff;
80	ld0->planemask = 0xffffff;
81	ld0->rop = LEO_ATTR_WE_ENABLE|LEO_ATTR_RGBE_ENABLE|LEO_ATTR_FORCE_WID;
82	ld0->fg = 0;
83	ld0->vclipmin = 0;
84	ld0->vclipmax = (pLeo->psdp->width - 1) | ((pLeo->psdp->height - 1) << 16);
85
86	while (lc0->csr & LEO_CSR_BLT_BUSY);
87
88	lc0->extent = (pLeo->psdp->width - 1) | ((pLeo->psdp->height - 1) << 11);
89	lc0->fill = 0;
90
91	while (lc0->csr & LEO_CSR_BLT_BUSY);
92
93	lc0->addrspace = LEO_ADDRSPC_OBGR;
94	ld0->rop = LEO_ATTR_RGBE_ENABLE|LEO_ROP_NEW;
95}
96
97extern Bool LeoCreateGC (GCPtr pGC);
98
99Bool LeoAccelInit (ScreenPtr pScreen, LeoPtr pLeo)
100{
101	LeoCommand0 *lc0;
102	LeoDraw *ld0;
103
104#if LEO_OLDPRIV
105	static int LeoGeneration;
106	if (serverGeneration != LeoGeneration) {
107		LeoGCPrivateIndex = AllocateGCPrivateIndex();
108		LeoGeneration = serverGeneration;
109	}
110	if (!AllocateGCPrivate(pScreen, LeoGCPrivateIndex, sizeof(LeoPrivGCRec)))
111		return FALSE;
112#else
113	if (!dixRegisterPrivateKey(&LeoGCPrivateIndex, PRIVATE_GC,
114	    sizeof(LeoPrivGCRec)))
115		return FALSE;
116#endif
117
118	pLeo->lc0 = lc0 = (LeoCommand0 *) ((char *)pLeo->fb + LEO_LC0_VOFF);
119	pLeo->ld0 = ld0 = (LeoDraw *) ((char *)pLeo->fb + LEO_LD0_VOFF);
120
121	if (!pLeo->NoAccel) /* XXX do nothing */ ;
122
123	/* We will now clear the screen: we'll draw a rectangle covering all the
124	 * viewscreen, using a 'blackness' ROP.
125	 */
126	ld0->wid = 0x10;
127	ld0->widclip = 0;
128	ld0->wmask = 0xffff;
129	ld0->planemask = 0x00ffffff;
130	ld0->rop = LEO_ATTR_WE_ENABLE|LEO_ATTR_RGBE_ENABLE|LEO_ATTR_FORCE_WID;
131	ld0->fg = 0;
132	ld0->vclipmin = 0;
133	ld0->vclipmax = (pLeo->psdp->width - 1) | ((pLeo->psdp->height - 1) << 16);
134	pLeo->vclipmax = (pLeo->psdp->width - 1) | ((pLeo->psdp->height - 1) << 16);
135	pLeo->width = pLeo->psdp->width;
136	pLeo->height = pLeo->psdp->height;
137
138	while (lc0->csr & LEO_CSR_BLT_BUSY);
139
140	lc0->extent = (pLeo->psdp->width - 1) | ((pLeo->psdp->height - 1) << 11);
141	lc0->fill = 0;
142
143	while (lc0->csr & LEO_CSR_BLT_BUSY);
144
145	lc0->addrspace = LEO_ADDRSPC_OBGR;
146	ld0->rop = LEO_ATTR_RGBE_ENABLE|LEO_ROP_NEW|LEO_ATTR_FORCE_WID;
147
148	/* Success */
149	return TRUE;
150}
151