linux/drivers/video/fbdev/core/sysimgblt.c

/*
 *  Generic 1-bit or 8-bit source to 1-32 bit destination expansion
 *  for frame buffer located in system RAM with packed pixels of any depth.
 *
 *  Based almost entirely on cfbimgblt.c
 *
 *      Copyright (C)  April 2007 Antonino Daplas <[email protected]>
 *
 *  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/module.h>
#include <linux/string.h>
#include <linux/fb.h>
#include <asm/types.h>

#define DEBUG

#ifdef DEBUG
#define DPRINTK(fmt, args...) …
#else
#define DPRINTK …
#endif

static const u32 cfb_tab8_be[] = …;

static const u32 cfb_tab8_le[] = …;

static const u32 cfb_tab16_be[] = …;

static const u32 cfb_tab16_le[] = …;

static const u32 cfb_tab32[] = …;

static void color_imageblit(const struct fb_image *image, struct fb_info *p,
			    void *dst1, u32 start_index, u32 pitch_index)
{ … }

static void slow_imageblit(const struct fb_image *image, struct fb_info *p,
				  void *dst1, u32 fgcolor, u32 bgcolor,
				  u32 start_index, u32 pitch_index)
{ … }

/*
 * fast_imageblit - optimized monochrome color expansion
 *
 * Only if:  bits_per_pixel == 8, 16, or 32
 *           image->width is divisible by pixel/dword (ppw);
 *           fix->line_legth is divisible by 4;
 *           beginning and end of a scanline is dword aligned
 */
static void fast_imageblit(const struct fb_image *image, struct fb_info *p,
				  void *dst1, u32 fgcolor, u32 bgcolor)
{ … }

void sys_imageblit(struct fb_info *p, const struct fb_image *image)
{ … }

EXPORT_SYMBOL(…);

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;