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authorAntonino A. Daplas <adaplas@gmail.com>2006-06-26 11:26:31 +0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-26 20:58:29 +0400
commit72c24cc51aef31219f2e258b4dcb68e09399e040 (patch)
tree22744106aeeef6f10abf45b34e2a5c3e5da8cb09 /drivers/video/aty/mach64_cursor.c
parent8eec4981080dc9dcf8fd5931a947c6f066ee0be6 (diff)
downloadlinux-72c24cc51aef31219f2e258b4dcb68e09399e040.tar.xz
[PATCH] atyfb: Fix hardware cursor handling
Fix image and color handling in atyfb_cursor() - In the 2-bit scheme of the cursor image, just set the first bit to be always zero (turn off transparency and/or XOR), and just do the masking manually - The cursor color is converted into 32-bit RGBA8888 using struct fb_cmap. Each component in the cmap is u16 in size, so mask the upper 8 bits. Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/video/aty/mach64_cursor.c')
-rw-r--r--drivers/video/aty/mach64_cursor.c31
1 files changed, 12 insertions, 19 deletions
diff --git a/drivers/video/aty/mach64_cursor.c b/drivers/video/aty/mach64_cursor.c
index ad8b7496f853..27bf0137e3bb 100644
--- a/drivers/video/aty/mach64_cursor.c
+++ b/drivers/video/aty/mach64_cursor.c
@@ -66,11 +66,6 @@ static const u8 cursor_bits_lookup[16] = {
0x01, 0x41, 0x11, 0x51, 0x05, 0x45, 0x15, 0x55
};
-static const u8 cursor_mask_lookup[16] = {
- 0xaa, 0x2a, 0x8a, 0x0a, 0xa2, 0x22, 0x82, 0x02,
- 0xa8, 0x28, 0x88, 0x08, 0xa0, 0x20, 0x80, 0x00
-};
-
static int atyfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
{
struct atyfb_par *par = (struct atyfb_par *) info->par;
@@ -130,13 +125,13 @@ static int atyfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
fg_idx = cursor->image.fg_color;
bg_idx = cursor->image.bg_color;
- fg = (info->cmap.red[fg_idx] << 24) |
- (info->cmap.green[fg_idx] << 16) |
- (info->cmap.blue[fg_idx] << 8) | 15;
+ fg = ((info->cmap.red[fg_idx] & 0xff) << 24) |
+ ((info->cmap.green[fg_idx] & 0xff) << 16) |
+ ((info->cmap.blue[fg_idx] & 0xff) << 8) | 0xff;
- bg = (info->cmap.red[bg_idx] << 24) |
- (info->cmap.green[bg_idx] << 16) |
- (info->cmap.blue[bg_idx] << 8);
+ bg = ((info->cmap.red[bg_idx] & 0xff) << 24) |
+ ((info->cmap.green[bg_idx] & 0xff) << 16) |
+ ((info->cmap.blue[bg_idx] & 0xff) << 8);
wait_for_fifo(2, par);
aty_st_le32(CUR_CLR0, bg, par);
@@ -166,19 +161,17 @@ static int atyfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
switch (cursor->rop) {
case ROP_XOR:
// Upper 4 bits of mask data
- fb_writeb(cursor_mask_lookup[m >> 4 ] |
- cursor_bits_lookup[(b ^ m) >> 4], dst++);
+ fb_writeb(cursor_bits_lookup[(b ^ m) >> 4], dst++);
// Lower 4 bits of mask
- fb_writeb(cursor_mask_lookup[m & 0x0f ] |
- cursor_bits_lookup[(b ^ m) & 0x0f], dst++);
+ fb_writeb(cursor_bits_lookup[(b ^ m) & 0x0f],
+ dst++);
break;
case ROP_COPY:
// Upper 4 bits of mask data
- fb_writeb(cursor_mask_lookup[m >> 4 ] |
- cursor_bits_lookup[(b & m) >> 4], dst++);
+ fb_writeb(cursor_bits_lookup[(b & m) >> 4], dst++);
// Lower 4 bits of mask
- fb_writeb(cursor_mask_lookup[m & 0x0f ] |
- cursor_bits_lookup[(b & m) & 0x0f], dst++);
+ fb_writeb(cursor_bits_lookup[(b & m) & 0x0f],
+ dst++);
break;
}
}