313 lines
8.9 KiB
C
313 lines
8.9 KiB
C
/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/ati/radeon_cursor.c,v 1.26 2003/11/10 18:41:22 tsi Exp $ */
|
|
/*
|
|
* Copyright 2000 ATI Technologies Inc., Markham, Ontario, and
|
|
* VA Linux Systems Inc., Fremont, California.
|
|
*
|
|
* All Rights Reserved.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation on the rights to use, copy, modify, merge,
|
|
* publish, distribute, sublicense, and/or sell copies of the Software,
|
|
* and to permit persons to whom the Software is furnished to do so,
|
|
* subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the
|
|
* next paragraph) shall be included in all copies or substantial
|
|
* portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NON-INFRINGEMENT. IN NO EVENT SHALL ATI, VA LINUX SYSTEMS AND/OR
|
|
* THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
|
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
* DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
/*
|
|
* Authors:
|
|
* Kevin E. Martin <martin@xfree86.org>
|
|
* Rickard E. Faith <faith@valinux.com>
|
|
*
|
|
* References:
|
|
*
|
|
* !!!! FIXME !!!!
|
|
* RAGE 128 VR/ RAGE 128 GL Register Reference Manual (Technical
|
|
* Reference Manual P/N RRG-G04100-C Rev. 0.04), ATI Technologies: April
|
|
* 1999.
|
|
*
|
|
* RAGE 128 Software Development Manual (Technical Reference Manual P/N
|
|
* SDK-G04000 Rev. 0.01), ATI Technologies: June 1999.
|
|
*
|
|
*/
|
|
|
|
#include "radeonfb.h"
|
|
|
|
#define CURSOR_WIDTH 64
|
|
#define CURSOR_HEIGHT 64
|
|
|
|
/*
|
|
* The cursor bits are always 32bpp. On MSBFirst buses,
|
|
* configure byte swapping to swap 32 bit units when writing
|
|
* the cursor image. Byte swapping must always be returned
|
|
* to its previous value before returning.
|
|
*/
|
|
#define CURSOR_SWAPPING_DECL_MMIO
|
|
#define CURSOR_SWAPPING_DECL unsigned long __surface_cntl=0;
|
|
#define CURSOR_SWAPPING_START() \
|
|
if(rinfo->big_endian) \
|
|
OUTREG(SURFACE_CNTL, \
|
|
((__surface_cntl = INREG(SURFACE_CNTL)) | \
|
|
NONSURF_AP0_SWP_32BPP) & \
|
|
~NONSURF_AP0_SWP_16BPP);
|
|
#define CURSOR_SWAPPING_END() \
|
|
if(rinfo->big_endian) \
|
|
(OUTREG(SURFACE_CNTL, __surface_cntl));
|
|
|
|
/* Set cursor foreground and background colors */
|
|
void radeon_set_cursor_colors(struct fb_info *info, int bg, int fg)
|
|
{
|
|
struct radeonfb_info *rinfo = info->par;
|
|
unsigned long *pixels = (unsigned long *)(pointer)((unsigned long)rinfo->fb_base+rinfo->cursor_start);
|
|
int pixel, i;
|
|
CURSOR_SWAPPING_DECL_MMIO
|
|
CURSOR_SWAPPING_DECL
|
|
// DPRINTVALHEX("radeonfb: RADEONSetCursorColors: cursor_start ",rinfo->cursor_start);
|
|
// DPRINT("\r\n");
|
|
fg |= 0xff000000;
|
|
bg |= 0xff000000;
|
|
/* Don't recolour the image if we don't have to. */
|
|
if(fg == rinfo->cursor_fg && bg == rinfo->cursor_bg)
|
|
return;
|
|
CURSOR_SWAPPING_START();
|
|
/* Note: We assume that the pixels are either fully opaque or fully
|
|
* transparent, so we won't premultiply them, and we can just
|
|
* check for non-zero pixel values; those are either fg or bg
|
|
*/
|
|
for(i = 0; i < CURSOR_WIDTH * CURSOR_HEIGHT; i++, pixels++)
|
|
if((pixel = *pixels))
|
|
*pixels = (pixel == rinfo->cursor_fg) ? fg : bg;
|
|
CURSOR_SWAPPING_END();
|
|
rinfo->cursor_fg = fg;
|
|
rinfo->cursor_bg = bg;
|
|
}
|
|
|
|
/* Set cursor position to (x,y) with offset into cursor bitmap at
|
|
* (xorigin,yorigin)
|
|
*/
|
|
void radeon_set_cursor_position(struct fb_info *info, int x, int y)
|
|
{
|
|
struct radeonfb_info *rinfo = info->par;
|
|
struct fb_var_screeninfo *mode = &info->var;
|
|
int xorigin = 0;
|
|
int yorigin = 0;
|
|
if(mode->vmode & FB_VMODE_DOUBLE)
|
|
y <<= 1;
|
|
if(x < 0)
|
|
xorigin = 1 - x;
|
|
if(y < 0)
|
|
yorigin = 1 - y;
|
|
// DPRINTVALHEX("radeonfb: RADEONSetCursorPosition: cursor_start ",rinfo->cursor_start);
|
|
// DPRINTVAL(" x ",x);
|
|
// DPRINTVAL(" y ",y);
|
|
// DPRINT("\r\n");
|
|
OUTREG(CUR_HORZ_VERT_OFF, (CUR_LOCK | (xorigin << 16) | yorigin));
|
|
OUTREG(CUR_HORZ_VERT_POSN, (CUR_LOCK | ((xorigin ? 0 : x) << 16) | (yorigin ? 0 : y)));
|
|
OUTREG(CUR_OFFSET, rinfo->cursor_start + yorigin * 256);
|
|
rinfo->cursor_x = (unsigned long)x;
|
|
if(mode->vmode & FB_VMODE_DOUBLE)
|
|
rinfo->cursor_y = (unsigned long)y >> 1;
|
|
else
|
|
rinfo->cursor_y = (unsigned long)y;
|
|
}
|
|
|
|
/* Copy cursor image from `image' to video memory. RADEONSetCursorPosition
|
|
* will be called after this, so we can ignore xorigin and yorigin.
|
|
*/
|
|
void radeon_load_cursor_image(struct fb_info *info, unsigned short *mask, unsigned short *data, int zoom)
|
|
{
|
|
struct radeonfb_info *rinfo = info->par;
|
|
unsigned long *d = (unsigned long *)(pointer)((unsigned long)rinfo->fb_base+rinfo->cursor_start);
|
|
unsigned long save = 0;
|
|
unsigned short chunk, mchunk;
|
|
unsigned long i, j, k;
|
|
CURSOR_SWAPPING_DECL
|
|
// DPRINTVALHEX("radeonfb: RADEONLoadCursorImage: cursor_start ",rinfo->cursor_start);
|
|
// DPRINT("\r\n");
|
|
save = INREG(CRTC_GEN_CNTL) & ~(unsigned long) (3 << 20);
|
|
save |= (unsigned long) (2 << 20);
|
|
OUTREG(CRTC_GEN_CNTL, save & (unsigned long)~CRTC_CUR_EN);
|
|
/*
|
|
* Convert the bitmap to ARGB32.
|
|
*/
|
|
CURSOR_SWAPPING_START();
|
|
#define ARGB_PER_CHUNK (8 * sizeof (chunk))
|
|
switch(zoom)
|
|
{
|
|
case 1:
|
|
default:
|
|
for(i = 0; i < CURSOR_HEIGHT; i++)
|
|
{
|
|
if(i < 16)
|
|
{
|
|
mchunk = *mask++;
|
|
chunk = *data++;
|
|
}
|
|
else
|
|
mchunk = chunk = 0;
|
|
for(j = 0; j < CURSOR_WIDTH / ARGB_PER_CHUNK; j++)
|
|
{
|
|
for(k = 0; k < ARGB_PER_CHUNK; k++, chunk <<= 1, mchunk <<= 1)
|
|
{
|
|
if(mchunk & 0x8000)
|
|
{
|
|
if(chunk & 0x8000)
|
|
*d++ = 0xff000000; /* Black, fully opaque. */
|
|
else
|
|
*d++ = 0xffffffff; /* White, fully opaque. */
|
|
}
|
|
else
|
|
*d++ = 0x00000000; /* White/Black, fully transparent. */
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case 2:
|
|
for(i = 0; i < CURSOR_HEIGHT; i++)
|
|
{
|
|
if(i < 16*2)
|
|
{
|
|
mchunk = *mask;
|
|
chunk = *data;
|
|
if((i & 1) == 1)
|
|
{
|
|
mask++;
|
|
data++;
|
|
}
|
|
}
|
|
else
|
|
mchunk = chunk = 0;
|
|
for(j = 0; j < CURSOR_WIDTH / ARGB_PER_CHUNK; j+=2)
|
|
{
|
|
for(k = 0; k < ARGB_PER_CHUNK; k++, chunk <<= 1, mchunk <<= 1)
|
|
{
|
|
if(mchunk & 0x8000)
|
|
{
|
|
if(chunk & 0x8000)
|
|
{
|
|
*d++ = 0xff000000; /* Black, fully opaque. */
|
|
*d++ = 0xff000000;
|
|
}
|
|
else
|
|
{
|
|
*d++ = 0xffffffff; /* White, fully opaque. */
|
|
*d++ = 0xffffffff;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
*d++ = 0x00000000; /* White/Black, fully transparent. */
|
|
*d++ = 0x00000000;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case 4:
|
|
for(i = 0; i < CURSOR_HEIGHT; i++)
|
|
{
|
|
if(i < 16*4)
|
|
{
|
|
mchunk = *mask;
|
|
chunk = *data;
|
|
if((i & 3) == 3)
|
|
{
|
|
mask++;
|
|
data++;
|
|
}
|
|
}
|
|
else
|
|
mchunk = chunk = 0;
|
|
for(j = 0; j < CURSOR_WIDTH / ARGB_PER_CHUNK; j+=4)
|
|
{
|
|
for(k = 0; k < ARGB_PER_CHUNK; k++, chunk <<= 1, mchunk <<= 1)
|
|
{
|
|
if(mchunk & 0x8000)
|
|
{
|
|
if(chunk & 0x8000)
|
|
{
|
|
*d++ = 0xff000000; /* Black, fully opaque. */
|
|
*d++ = 0xff000000;
|
|
*d++ = 0xff000000;
|
|
*d++ = 0xff000000;
|
|
}
|
|
else
|
|
{
|
|
*d++ = 0xffffffff; /* White, fully opaque. */
|
|
*d++ = 0xffffffff;
|
|
*d++ = 0xffffffff;
|
|
*d++ = 0xffffffff;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
*d++ = 0x00000000; /* White/Black, fully transparent. */
|
|
*d++ = 0x00000000;
|
|
*d++ = 0x00000000;
|
|
*d++ = 0x00000000;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
CURSOR_SWAPPING_END();
|
|
rinfo->cursor_bg = 0xffffffff; /* White, fully opaque. */
|
|
rinfo->cursor_fg = 0xff000000; /* Black, fully opaque. */
|
|
OUTREG(CRTC_GEN_CNTL, save);
|
|
}
|
|
|
|
/* Hide hardware cursor. */
|
|
void radeon_hide_cursor(struct fb_info *info)
|
|
{
|
|
struct radeonfb_info *rinfo = info->par;
|
|
// DPRINT("radeonfb: RADEONHideCursor\r\n");
|
|
OUTREGP(CRTC_GEN_CNTL, 0, ~CRTC_CUR_EN);
|
|
rinfo->cursor_show = 0;
|
|
}
|
|
|
|
/* Show hardware cursor. */
|
|
void radeon_show_cursor(struct fb_info *info)
|
|
{
|
|
struct radeonfb_info *rinfo = info->par;
|
|
// DPRINT("radeonfb: RADEONShowCursor\r\n");
|
|
OUTREGP(CRTC_GEN_CNTL, CRTC_CUR_EN, ~CRTC_CUR_EN);
|
|
rinfo->cursor_show = 1;
|
|
}
|
|
|
|
/* Initialize hardware cursor support. */
|
|
long radeon_cursor_init(struct fb_info *info)
|
|
{
|
|
struct radeonfb_info *rinfo = info->par;
|
|
int size_bytes = CURSOR_WIDTH * 4 * CURSOR_HEIGHT;
|
|
unsigned long fbarea = offscreen_alloc(rinfo->info, size_bytes+256);
|
|
// DPRINTVALHEX("radeonfb: RADEONCursorInit: fbarea ",fbarea);
|
|
if(!fbarea)
|
|
rinfo->cursor_start = 0;
|
|
else
|
|
{
|
|
unsigned short data[16], mask[16];
|
|
memset(data, 0, sizeof(data));
|
|
memset(mask, 0, sizeof(data));
|
|
rinfo->cursor_start = RADEON_ALIGN(fbarea - (unsigned long)rinfo->fb_base, 256);
|
|
rinfo->cursor_end = rinfo->cursor_start + size_bytes;
|
|
RADEONLoadCursorImage(info, mask, data, 1);
|
|
}
|
|
// DPRINTVALHEX(" cursor_start ",rinfo->cursor_start);
|
|
// DPRINT("\r\n");
|
|
return(rinfo->cursor_start ? fbarea : 0);
|
|
}
|