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/*-*- linux-c -*-
* linux/drivers/video/savage/savage_accel.c -- Hardware Acceleration
*
* Copyright (C) 2004 Antonino Daplas<adaplas@pol.net>
* All Rights Reserved
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive for
* more details.
*/
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/fb.h>
#include <linux/module.h>
#include "savagefb.h"
static u32 savagefb_rop[] = {
0xCC, /* ROP_COPY */
0x5A /* ROP_XOR */
};
int savagefb_sync(struct fb_info *info)
{
struct savagefb_par *par = info->par;
par->SavageWaitIdle(par);
return 0;
}
void savagefb_copyarea(struct fb_info *info, const struct fb_copyarea *region)
{
struct savagefb_par *par = info->par;
int sx = region->sx, dx = region->dx;
int sy = region->sy, dy = region->dy;
int cmd;
if (!region->width || !region->height)
return;
par->bci_ptr = 0;
cmd = BCI_CMD_RECT | BCI_CMD_DEST_GBD | BCI_CMD_SRC_GBD;
BCI_CMD_SET_ROP(cmd, savagefb_rop[0]);
if (dx <= sx) {
cmd |= BCI_CMD_RECT_XP;
} else {
sx += region->width - 1;
dx += region->width - 1;
}
if (dy <= sy) {
cmd |= BCI_CMD_RECT_YP;
} else {
sy += region->height - 1;
dy += region->height - 1;
}
par->SavageWaitFifo(par,4);
BCI_SEND(cmd);
BCI_SEND(BCI_X_Y(sx, sy));
BCI_SEND(BCI_X_Y(dx, dy));
BCI_SEND(BCI_W_H(region->width, region->height));
}
void savagefb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
{
struct savagefb_par *par = info->par;
int cmd, color;
if (!rect->width || !rect->height)
return;
if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR)
color = rect->color;
else
color = ((u32 *)info->pseudo_palette)[rect->color];
cmd = BCI_CMD_RECT | BCI_CMD_RECT_XP | BCI_CMD_RECT_YP |
BCI_CMD_DEST_GBD | BCI_CMD_SRC_SOLID |
BCI_CMD_SEND_COLOR;
par->bci_ptr = 0;
BCI_CMD_SET_ROP(cmd, savagefb_rop[rect->rop]);
par->SavageWaitFifo(par,4);
BCI_SEND(cmd);
BCI_SEND(color);
BCI_SEND( BCI_X_Y(rect->dx, rect->dy) );
BCI_SEND( BCI_W_H(rect->width, rect->height) );
}
void savagefb_imageblit(struct fb_info *info, const struct fb_image *image)
{
struct savagefb_par *par = info->par;
int fg, bg, size, i, width;
int cmd;
u32 *src = (u32 *) image->data;
if (!image->width || !image->height)
return;
if (image->depth != 1) {
cfb_imageblit(info, image);
return;
}
if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) {
fg = image->fg_color;
bg = image->bg_color;
} else {
fg = ((u32 *)info->pseudo_palette)[image->fg_color];
bg = ((u32 *)info->pseudo_palette)[image->bg_color];
}
cmd = BCI_CMD_RECT | BCI_CMD_RECT_XP | BCI_CMD_RECT_YP |
BCI_CMD_CLIP_LR | BCI_CMD_DEST_GBD | BCI_CMD_SRC_MONO |
BCI_CMD_SEND_COLOR;
par->bci_ptr = 0;
BCI_CMD_SET_ROP(cmd, savagefb_rop[0]);
width = (image->width + 31) & ~31;
size = (width * image->height)/8;
size >>= 2;
par->SavageWaitFifo(par, size + 5);
BCI_SEND(cmd);
BCI_SEND(BCI_CLIP_LR(image->dx, image->dx + image->width - 1));
BCI_SEND(fg);
BCI_SEND(bg);
BCI_SEND(BCI_X_Y(image->dx, image->dy));
BCI_SEND(BCI_W_H(width, image->height));
for (i = 0; i < size; i++)
BCI_SEND(src[i]);
}
MODULE_LICENSE("GPL");
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