1/*-*- linux-c -*-
2 *  linux/drivers/video/savage/savage_accel.c -- Hardware Acceleration
3 *
4 *      Copyright (C) 2004 Antonino Daplas<adaplas@pol.net>
5 *      All Rights Reserved
6 *
7 *  This file is subject to the terms and conditions of the GNU General Public
8 *  License. See the file COPYING in the main directory of this archive for
9 *  more details.
10 */
11#include <linux/kernel.h>
12#include <linux/string.h>
13#include <linux/fb.h>
14#include <linux/module.h>
15
16#include "savagefb.h"
17
18static u32 savagefb_rop[] = {
19	0xCC, /* ROP_COPY */
20	0x5A  /* ROP_XOR  */
21};
22
23int savagefb_sync(struct fb_info *info)
24{
25	struct savagefb_par *par = info->par;
26
27	par->SavageWaitIdle(par);
28	return 0;
29}
30
31void savagefb_copyarea(struct fb_info *info, const struct fb_copyarea *region)
32{
33	struct savagefb_par *par = info->par;
34	int sx = region->sx, dx = region->dx;
35	int sy = region->sy, dy = region->dy;
36	int cmd;
37
38	if (!region->width || !region->height)
39		return;
40	par->bci_ptr = 0;
41	cmd = BCI_CMD_RECT | BCI_CMD_DEST_GBD | BCI_CMD_SRC_GBD;
42	BCI_CMD_SET_ROP(cmd, savagefb_rop[0]);
43
44	if (dx <= sx) {
45		cmd |= BCI_CMD_RECT_XP;
46	} else {
47		sx += region->width - 1;
48		dx += region->width - 1;
49	}
50
51	if (dy <= sy) {
52		cmd |= BCI_CMD_RECT_YP;
53	} else {
54		sy += region->height - 1;
55		dy += region->height - 1;
56	}
57
58	par->SavageWaitFifo(par,4);
59	BCI_SEND(cmd);
60	BCI_SEND(BCI_X_Y(sx, sy));
61	BCI_SEND(BCI_X_Y(dx, dy));
62	BCI_SEND(BCI_W_H(region->width, region->height));
63}
64
65void savagefb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
66{
67	struct savagefb_par *par = info->par;
68	int cmd, color;
69
70	if (!rect->width || !rect->height)
71		return;
72
73	if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR)
74		color = rect->color;
75	else
76		color = ((u32 *)info->pseudo_palette)[rect->color];
77
78	cmd = BCI_CMD_RECT | BCI_CMD_RECT_XP | BCI_CMD_RECT_YP |
79	      BCI_CMD_DEST_GBD | BCI_CMD_SRC_SOLID |
80	      BCI_CMD_SEND_COLOR;
81
82	par->bci_ptr = 0;
83	BCI_CMD_SET_ROP(cmd, savagefb_rop[rect->rop]);
84
85	par->SavageWaitFifo(par,4);
86	BCI_SEND(cmd);
87	BCI_SEND(color);
88	BCI_SEND( BCI_X_Y(rect->dx, rect->dy) );
89	BCI_SEND( BCI_W_H(rect->width, rect->height) );
90}
91
92void savagefb_imageblit(struct fb_info *info, const struct fb_image *image)
93{
94	struct savagefb_par *par = info->par;
95	int fg, bg, size, i, width;
96	int cmd;
97	u32 *src = (u32 *) image->data;
98
99	if (!image->width || !image->height)
100		return;
101
102	if (image->depth != 1) {
103		cfb_imageblit(info, image);
104		return;
105	}
106
107	if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) {
108		fg = image->fg_color;
109		bg = image->bg_color;
110	} else {
111		fg = ((u32 *)info->pseudo_palette)[image->fg_color];
112		bg = ((u32 *)info->pseudo_palette)[image->bg_color];
113	}
114
115	cmd = BCI_CMD_RECT | BCI_CMD_RECT_XP | BCI_CMD_RECT_YP |
116	      BCI_CMD_CLIP_LR | BCI_CMD_DEST_GBD | BCI_CMD_SRC_MONO |
117	      BCI_CMD_SEND_COLOR;
118
119	par->bci_ptr = 0;
120	BCI_CMD_SET_ROP(cmd, savagefb_rop[0]);
121
122	width = (image->width + 31) & ~31;
123	size = (width * image->height)/8;
124	size >>= 2;
125
126	par->SavageWaitFifo(par, size + 5);
127	BCI_SEND(cmd);
128	BCI_SEND(BCI_CLIP_LR(image->dx, image->dx + image->width - 1));
129	BCI_SEND(fg);
130	BCI_SEND(bg);
131	BCI_SEND(BCI_X_Y(image->dx, image->dy));
132	BCI_SEND(BCI_W_H(width, image->height));
133	for (i = 0; i < size; i++)
134		BCI_SEND(src[i]);
135}
136
137MODULE_LICENSE("GPL");
138