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
18 static u32 savagefb_rop[] = {
19 0xCC, /* ROP_COPY */
20 0x5A /* ROP_XOR */
21 };
22
savagefb_sync(struct fb_info * info)23 int savagefb_sync(struct fb_info *info)
24 {
25 struct savagefb_par *par = info->par;
26
27 par->SavageWaitIdle(par);
28 return 0;
29 }
30
savagefb_copyarea(struct fb_info * info,const struct fb_copyarea * region)31 void 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
savagefb_fillrect(struct fb_info * info,const struct fb_fillrect * rect)65 void 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
savagefb_imageblit(struct fb_info * info,const struct fb_image * image)92 void 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
137 MODULE_LICENSE("GPL");
138