LXR linux/drivers/video/fbdev/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#include <linux/module.h>
  15
  16#include "savagefb.h"
  17
  18static u32 savagefb_rop[] = {
  19        0xCC, /* ROP_COPY */
  20        0x5A  /* ROP_XOR  */
  21};
  22
  23int savagefb_sync(struct fb_info *info)
  24{
  25        struct savagefb_par *par = info->par;
  26
  27        par->SavageWaitIdle(par);
  28        return 0;
  29}
  30
  31void 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
  65void 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
  92void 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
 137MODULE_LICENSE("GPL");
 138