LXR linux/drivers/video/savage/savagefb

   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
  17static u32 savagefb_rop[] = {
  18        0xCC, /* ROP_COPY */
  19        0x5A  /* ROP_XOR  */
  20};
  21
  22int savagefb_sync(struct fb_info *info)
  23{
  24        struct savagefb_par *par = info->par;
  25
  26        par->SavageWaitIdle(par);
  27        return 0;
  28}
  29
  30void savagefb_copyarea(struct fb_info *info, const struct fb_copyarea *region)
  31{
  32        struct savagefb_par *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
  64void savagefb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
  65{
  66        struct savagefb_par *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
  91void savagefb_imageblit(struct fb_info *info, const struct fb_image *image)
  92{
  93        struct savagefb_par *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
 136MODULE_LICENSE("GPL");
 137