drivers/video/savage/savagefb_accel.c

   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
  15 #include "savagefb.h"
  16
  17 static u32 savagefb_rop[] = {
  18         0xCC, /* ROP_COPY */
  19         0x5A  /* ROP_XOR  */
  20 };
  21
  22 int savagefb_sync(struct fb_info *info)
  23 {
  24         struct savagefb_par *par = (struct savagefb_par *)info->par;
  25
  26         par->SavageWaitIdle(par);
  27         return 0;
  28 }
  29
  30 void savagefb_copyarea(struct fb_info *info, const struct fb_copyarea *region)
  31 {
  32         struct savagefb_par *par = (struct savagefb_par *)info->par;
  33         int sx = region->sx, dx = region->dx;
  34         int sy = region->sy, dy = region->dy;
  35         int cmd;
  36
  37         if (!region->width || !region->height)
  38                 return;
  39         par->bci_ptr = 0;
  40         cmd = BCI_CMD_RECT | BCI_CMD_DEST_GBD | BCI_CMD_SRC_GBD;
  41         BCI_CMD_SET_ROP(cmd, savagefb_rop[0]);
  42
  43         if (dx <= sx) {
  44                 cmd |= BCI_CMD_RECT_XP;
  45         } else {
  46                 sx += region->width - 1;
  47                 dx += region->width - 1;
  48         }
  49
  50         if (dy <= sy) {
  51                 cmd |= BCI_CMD_RECT_YP;
  52         } else {
  53                 sy += region->height - 1;
  54                 dy += region->height - 1;
  55         }
  56
  57         par->SavageWaitFifo(par,4);
  58         BCI_SEND(cmd);
  59         BCI_SEND(BCI_X_Y(sx, sy));
  60         BCI_SEND(BCI_X_Y(dx, dy));
  61         BCI_SEND(BCI_W_H(region->width, region->height));
  62 }
  63
  64 void savagefb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
  65 {
  66         struct savagefb_par *par = (struct savagefb_par *)info->par;
  67         int cmd, color;
  68
  69         if (!rect->width || !rect->height)
  70                 return;
  71
  72         if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR)
  73                 color = rect->color;
  74         else
  75                 color = ((u32 *)info->pseudo_palette)[rect->color];
  76
  77         cmd = BCI_CMD_RECT | BCI_CMD_RECT_XP | BCI_CMD_RECT_YP |
  78               BCI_CMD_DEST_GBD | BCI_CMD_SRC_SOLID |
  79               BCI_CMD_SEND_COLOR;
  80
  81         par->bci_ptr = 0;
  82         BCI_CMD_SET_ROP(cmd, savagefb_rop[rect->rop]);
  83
  84         par->SavageWaitFifo(par,4);
  85         BCI_SEND(cmd);
  86         BCI_SEND(color);
  87         BCI_SEND( BCI_X_Y(rect->dx, rect->dy) );
  88         BCI_SEND( BCI_W_H(rect->width, rect->height) );
  89 }
  90
  91 void savagefb_imageblit(struct fb_info *info, const struct fb_image *image)
  92 {
  93         struct savagefb_par *par = (struct savagefb_par *)info->par;
  94         int fg, bg, size, i, width;
  95         int cmd;
  96         u32 *src = (u32 *) image->data;
  97
  98         if (!image->width || !image->height)
  99                 return;
 100
 101         if (image->depth != 1) {
 102                 cfb_imageblit(info, image);
 103                 return;
 104         }
 105
 106         if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) {
 107                 fg = image->fg_color;
 108                 bg = image->bg_color;
 109         } else {
 110                 fg = ((u32 *)info->pseudo_palette)[image->fg_color];
 111                 bg = ((u32 *)info->pseudo_palette)[image->bg_color];
 112         }
 113
 114         cmd = BCI_CMD_RECT | BCI_CMD_RECT_XP | BCI_CMD_RECT_YP |
 115               BCI_CMD_CLIP_LR | BCI_CMD_DEST_GBD | BCI_CMD_SRC_MONO |
 116               BCI_CMD_SEND_COLOR;
 117
 118         par->bci_ptr = 0;
 119         BCI_CMD_SET_ROP(cmd, savagefb_rop[0]);
 120
 121         width = (image->width + 31) & ~31;
 122         size = (width * image->height)/8;
 123         size >>= 2;
 124
 125         par->SavageWaitFifo(par, size + 5);
 126         BCI_SEND(cmd);
 127         BCI_SEND(BCI_CLIP_LR(image->dx, image->dx + image->width - 1));
 128         BCI_SEND(fg);
 129         BCI_SEND(bg);
 130         BCI_SEND(BCI_X_Y(image->dx, image->dy));
 131         BCI_SEND(BCI_W_H(width, image->height));
 132         for (i = 0; i < size; i++)
 133                 BCI_SEND(src[i]);
 134 }
 135
 136 MODULE_LICENSE("GPL");