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 #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");