forked from luck/tmp_suning_uos_patched
f5a9951c94
Since no one is using the inbuf, outbuf of struct fb_pixmap I removed their use in the framebuffer console. The idea is instead move the pixmap functionality below the accelerated functions intead of on top as the way it is now. If there is no objection please apply. This is against Linus latestr GIT tree. Thank you. Signed-off-by: James Simmons <jsimmons@www.infradead.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
76 lines
1.8 KiB
C
76 lines
1.8 KiB
C
/*
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* linux/drivers/video/softcursor.c -- Generic software cursor for frame buffer devices
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*
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* Created 14 Nov 2002 by James Simmons
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file COPYING in the main directory of this archive
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* for more details.
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*/
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#include <linux/module.h>
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#include <linux/string.h>
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#include <linux/tty.h>
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#include <linux/fb.h>
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#include <linux/slab.h>
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#include <asm/uaccess.h>
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#include <asm/io.h>
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int soft_cursor(struct fb_info *info, struct fb_cursor *cursor)
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{
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unsigned int scan_align = info->pixmap.scan_align - 1;
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unsigned int buf_align = info->pixmap.buf_align - 1;
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unsigned int i, size, dsize, s_pitch, d_pitch;
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struct fb_image *image;
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u8 *dst, *src;
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if (info->state != FBINFO_STATE_RUNNING)
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return 0;
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s_pitch = (cursor->image.width + 7) >> 3;
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dsize = s_pitch * cursor->image.height;
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src = kmalloc(dsize + sizeof(struct fb_image), GFP_ATOMIC);
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if (!src)
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return -ENOMEM;
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image = (struct fb_image *) (src + dsize);
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*image = cursor->image;
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d_pitch = (s_pitch + scan_align) & ~scan_align;
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size = d_pitch * image->height + buf_align;
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size &= ~buf_align;
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dst = fb_get_buffer_offset(info, &info->pixmap, size);
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if (cursor->enable) {
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switch (cursor->rop) {
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case ROP_XOR:
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for (i = 0; i < dsize; i++)
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src[i] = image->data[i] ^ cursor->mask[i];
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break;
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case ROP_COPY:
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default:
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for (i = 0; i < dsize; i++)
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src[i] = image->data[i] & cursor->mask[i];
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break;
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}
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} else
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memcpy(src, image->data, dsize);
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fb_sysmove_buf_aligned(info, &info->pixmap, dst, d_pitch, src,
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s_pitch, image->height);
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image->data = dst;
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info->fbops->fb_imageblit(info, image);
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kfree(src);
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return 0;
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}
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EXPORT_SYMBOL(soft_cursor);
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MODULE_AUTHOR("James Simmons <jsimmons@users.sf.net>");
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MODULE_DESCRIPTION("Generic software cursor");
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MODULE_LICENSE("GPL");
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