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savagefb_accel.c
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1 /*-*- linux-c -*-
2  * linux/drivers/video/savage/savage_accel.c -- Hardware Acceleration
3  *
4  * Copyright (C) 2004 Antonino Daplas<[email protected]>
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 
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 
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 
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 
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");
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