diff -urN linux-2.4.24.org/drivers/char/console.c linux-2.4.24/drivers/char/console.c
--- linux-2.4.24.org/drivers/char/console.c 2004-01-19 21:00:14.495123806 +0100
+++ linux-2.4.24/drivers/char/console.c 2004-01-19 21:03:48.017721428 +0100
@@ -3025,6 +3025,31 @@
return 0;
}
+#ifdef CONFIG_FBCON_SPLASHSCREEN
+void con_remap_def_color(int currcons, int new_color)
+{
+ unsigned short *sbuf = screenbuf;
+ unsigned c, len = screenbuf_size >> 1;
+ int old_color;
+
+ if (sbuf) {
+ old_color = def_color << 8;
+ new_color <<= 8;
+ while(len--) {
+ c = *sbuf;
+ if (((c ^ old_color) & 0xf000) == 0)
+ *sbuf ^= (old_color ^ new_color) & 0xf000;
+ if (((c ^ old_color) & 0x0f00) == 0)
+ *sbuf ^= (old_color ^ new_color) & 0x0f00;
+ sbuf++;
+ }
+ new_color >>= 8;
+ }
+ def_color = color = new_color;
+ update_attr(currcons);
+}
+#endif
+
/*
* Visible symbols for modules
*/
diff -urN linux-2.4.24.org/drivers/char/keyboard.c linux-2.4.24/drivers/char/keyboard.c
--- linux-2.4.24.org/drivers/char/keyboard.c 2004-01-19 21:00:14.168191795 +0100
+++ linux-2.4.24/drivers/char/keyboard.c 2004-01-19 21:03:48.066711241 +0100
@@ -263,6 +263,15 @@
} else
rep = test_and_set_bit(keycode, key_down);
+#ifdef CONFIG_FBCON_SPLASHSCREEN
+ /* This code has to be redone for some non-x86 platforms */
+ if (keycode == 0x3c || keycode == 0x01) { /* F2 and ESC on a PC keyboard */
+ extern int splash_verbose(void);
+ if (splash_verbose())
+ goto out;
+ }
+#endif
+
#ifdef CONFIG_MAGIC_SYSRQ /* Handle the SysRq Hack */
if (keycode == SYSRQ_KEY) {
sysrq_pressed = !up_flag;
--- linux-2.4.29/drivers/char/n_tty.c.orig 2005-01-20 16:15:28.000000000 +0100
+++ linux-2.4.29/drivers/char/n_tty.c 2005-01-20 16:18:59.000000000 +0100
@@ -47,6 +47,7 @@
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/poll.h>
+#include <linux/config.h>
#include <asm/uaccess.h>
#include <asm/system.h>
@@ -1186,6 +1187,16 @@
return -EIO;
}
+#ifdef CONFIG_FBCON_SPLASHSCREEN
+ if (file->f_dentry->d_inode->i_rdev == CONSOLE_DEV ||
+ file->f_dentry->d_inode->i_rdev == SYSCONS_DEV ||
+ file->f_dentry->d_inode->i_rdev == MKDEV(TTYAUX_MAJOR,0) ||
+ file->f_dentry->d_inode->i_rdev == MKDEV(TTY_MAJOR,1)) {
+ extern int splash_verbose(void);
+ (void)splash_verbose();
+ }
+#endif
+
c = job_control(tty, file);
if(c < 0)
return c;
diff -urN linux-2.4.24.org/drivers/video/Config.in linux-2.4.24/drivers/video/Config.in
--- linux-2.4.24.org/drivers/video/Config.in 2004-01-19 21:01:12.428076192 +0100
+++ linux-2.4.24/drivers/video/Config.in 2004-01-19 21:05:33.568745824 +0100
@@ -243,13 +243,20 @@
tristate ' Virtual Frame Buffer support (ONLY FOR TESTING!) (EXPERIMENTAL)' CONFIG_FB_VIRTUAL
fi
+ dep_bool ' Use splash screen instead of boot logo' CONFIG_FBCON_SPLASHSCREEN $CONFIG_BLK_DEV_INITRD
+ if [ "$CONFIG_FBCON_SPLASHSCREEN" = "y" ]; then
+ define_bool CONFIG_FBCON_CFB16 y
+ fi
+
bool ' Advanced low level driver options' CONFIG_FBCON_ADVANCED
if [ "$CONFIG_FBCON_ADVANCED" = "y" ]; then
tristate ' Monochrome support' CONFIG_FBCON_MFB
tristate ' 2 bpp packed pixels support' CONFIG_FBCON_CFB2
tristate ' 4 bpp packed pixels support' CONFIG_FBCON_CFB4
tristate ' 8 bpp packed pixels support' CONFIG_FBCON_CFB8
- tristate ' 16 bpp packed pixels support' CONFIG_FBCON_CFB16
+ if [ "$CONFIG_FBCON_SPLASHSCREEN" != "y" ]; then
+ tristate ' 16 bpp packed pixels support' CONFIG_FBCON_CFB16
+ fi
tristate ' 24 bpp packed pixels support' CONFIG_FBCON_CFB24
tristate ' 32 bpp packed pixels support' CONFIG_FBCON_CFB32
tristate ' Amiga bitplanes support' CONFIG_FBCON_AFB
@@ -361,7 +368,9 @@
"$CONFIG_FB_PVR2" = "y" -o "$CONFIG_FB_VOODOO1" = "y" -o \
"$CONFIG_FB_NEOMAGIC" = "y" -o "$CONFIG_FB_INTEL" = "y" -o \
"$CONFIG_FB_I810" = "y" ]; then
- define_tristate CONFIG_FBCON_CFB16 y
+ if [ "$CONFIG_FBCON_CFB16" != "m" ]; then
+ define_tristate CONFIG_FBCON_CFB16 y
+ fi
else
if [ "$CONFIG_FB_ATARI" = "m" -o "$CONFIG_FB_ATY" = "m" -o \
"$CONFIG_FB_MAC" = "m" -o "$CONFIG_FB_VESA" = "m" -o \
@@ -380,7 +389,9 @@
"$CONFIG_FB_PVR2" = "m" -o "$CONFIG_FB_VOODOO1" = "m" -o \
"$CONFIG_FB_NEOMAGIC" = "m" -o "$CONFIG_FB_INTEL" = "m" -o \
"$CONFIG_FB_I810" = "m" ]; then
- define_tristate CONFIG_FBCON_CFB16 m
+ if [ "$CONFIG_FBCON_CFB16" != "y" ]; then
+ define_tristate CONFIG_FBCON_CFB16 m
+ fi
fi
fi
if [ "$CONFIG_FB_ATY" = "y" -o "$CONFIG_FB_VIRTUAL" = "y" -o \
diff -urN linux-2.4.24.org/drivers/video/fbcon.c linux-2.4.24/drivers/video/fbcon.c
--- linux-2.4.24.org/drivers/video/fbcon.c 2004-01-19 21:01:12.383085548 +0100
+++ linux-2.4.24/drivers/video/fbcon.c 2004-01-19 21:03:48.196684214 +0100
@@ -76,6 +76,7 @@
#include <linux/smp.h>
#include <linux/init.h>
#include <linux/pm.h>
+#include <linux/vmalloc.h>
#include <asm/irq.h>
#include <asm/system.h>
@@ -104,6 +105,23 @@
#include <video/fbcon-mac.h> /* for 6x11 font on mac */
#include <video/font.h>
+#ifdef CONFIG_FBCON_SPLASHSCREEN
+#include <video/fbcon-cfb16.h> /* for fbcon_cfb16 */
+#include "fbcon-splash.h"
+
+extern void con_remap_def_color(int currcons, int new_color);
+
+extern int splash_default;
+extern int splash_shown;
+
+extern struct display_switch fbcon_splash16;
+
+#ifdef CONFIG_PROC_FS
+int splash_proc_register(void);
+int splash_proc_unregister(void);
+#endif
+#endif
+
#ifdef FBCONDEBUG
# define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __FUNCTION__ , ## args)
#else
@@ -477,7 +495,9 @@
return display_desc;
}
-
+#ifdef CONFIG_FBCON_SPLASHSCREEN
+static int splash_registered=0;
+#endif
static void fbcon_init(struct vc_data *conp, int init)
{
int unit = conp->vc_num;
@@ -501,6 +521,26 @@
fb_display[unit].cmap.green = 0;
fb_display[unit].cmap.blue = 0;
fb_display[unit].cmap.transp = 0;
+
+#ifdef CONFIG_FBCON_SPLASHSCREEN
+ if (!splash_registered && fb_display[unit].var.bits_per_pixel == 16 ) {
+ if (unit == 0 && !fb_display[unit].splash_data) {
+ extern unsigned long initrd_start, initrd_end;
+
+ if (initrd_start && !splash_getraw((unsigned char *)initrd_start, (unsigned char *)initrd_end) && fb_display[unit].splash_data)
+ fb_display[unit].splash_data->splash_state = splash_default & 1;
+ }
+ splash_registered = 1;
+#ifdef CONFIG_PROC_FS
+ splash_proc_register();
+#endif
+ }
+ if (fb_display[unit].splash_data && fb_display[unit].var.bits_per_pixel != 16 ) {
+ vfree(fb_display[unit].splash_data);
+ fb_display[unit].splash_data = 0;
+ }
+#endif
+
fbcon_setup(unit, init, !init);
/* Must be done after fbcon_setup to prevent excess updates */
conp->vc_display_fg = &info->display_fg;
@@ -517,6 +557,15 @@
fbcon_free_font(p);
p->dispsw = &fbcon_dummy;
p->conp = 0;
+#ifdef CONFIG_FBCON_SPLASHSCREEN
+ if (splash_registered) {
+#ifdef CONFIG_PROC_FS
+ splash_proc_unregister();
+#endif
+ splash_registered = 0;
+ }
+#endif
+
}
@@ -657,7 +706,14 @@
nr_cols = p->var.xres/fontwidth(p);
nr_rows = p->var.yres/fontheight(p);
-
+#ifdef CONFIG_FBCON_SPLASHSCREEN
+ if (p->splash_data && p->splash_data->splash_state) {
+ nr_cols = p->splash_data->splash_text_wi / fontwidth(p);
+ nr_rows = p->splash_data->splash_text_he / fontheight(p);
+ logo = 0;
+ }
+#endif
+
if (logo) {
/* Need to make room for the logo */
int cnt;
@@ -734,6 +790,11 @@
p->fgcol = p->var.bits_per_pixel > 2 ? 7 : (1<<p->var.bits_per_pixel)-1;
p->bgcol = 0;
+#ifdef CONFIG_FBCON_SPLASHSCREEN
+ if(p->splash_data && p->splash_data->splash_state)
+ con_remap_def_color(con, p->splash_data->splash_color << 4 | p->splash_data->splash_fg_color);
+#endif
+
if (!init) {
if (conp->vc_cols != nr_cols || conp->vc_rows != nr_rows)
vc_resize_con(nr_rows, nr_cols, con);
@@ -1323,6 +1384,9 @@
if (softback_top)
fbcon_softback_note(conp, t, count);
if (logo_shown >= 0) goto redraw_up;
+#ifdef CONFIG_FBCON_SPLASHSCREEN
+ if (splash_shown) goto redraw_up;
+#endif
switch (p->scrollmode & __SCROLL_YMASK) {
case __SCROLL_YMOVE:
p->dispsw->bmove(p, t+count, 0, t, 0, b-t-count,
@@ -1383,6 +1447,9 @@
case SM_DOWN:
if (count > conp->vc_rows) /* Maximum realistic size */
count = conp->vc_rows;
+#ifdef CONFIG_FBCON_SPLASHSCREEN
+ if (splash_shown) goto redraw_down;
+#endif
switch (p->scrollmode & __SCROLL_YMASK) {
case __SCROLL_YMOVE:
p->dispsw->bmove(p, t, 0, t+count, 0, b-t-count,
@@ -1499,6 +1566,13 @@
}
return;
}
+#ifdef CONFIG_FBCON_SPLASHSCREEN
+ if (splash_shown && sy == dy) {
+ /* must use slower redraw bmove to keep background pic intact */
+ fbcon_redraw_bmove(p, real_y(p, sy), sx, real_y(p, dy), dx, height, width);
+ return;
+ }
+#endif
p->dispsw->bmove(p, real_y(p, sy), sx, real_y(p, dy), dx, height, width);
}
@@ -1509,6 +1583,10 @@
struct display *p = &fb_display[unit];
struct fb_info *info = p->fb_info;
+#ifdef CONFIG_FBCON_SPLASHSCREEN
+ splash_prepare(p);
+#endif
+
if (softback_top) {
int l = fbcon_softback_size / conp->vc_size_row;
if (softback_lines)
@@ -1568,14 +1646,41 @@
{
struct display *p = &fb_display[conp->vc_num];
struct fb_info *info = p->fb_info;
+#ifdef CONFIG_FBCON_SPLASHSCREEN
+ struct display_switch *olddispsw=NULL;
+ char *oldscreen_base=NULL;
+#endif
+
if (blank < 0) /* Entering graphics mode */
return 0;
+#ifdef CONFIG_FBCON_SPLASHSCREEN
+
+ if (p->splash_data && p->splash_data->oldscreen_base) {
+ oldscreen_base = p->screen_base;
+ p->screen_base = p->splash_data->oldscreen_base;
+ }
+ if (p->splash_data && p->splash_data->olddispsw) {
+ olddispsw = p->dispsw;
+ p->dispsw = p->splash_data->olddispsw;
+ }
+#endif
+
fbcon_cursor(p->conp, blank ? CM_ERASE : CM_DRAW);
if (!p->can_soft_blank) {
if (blank) {
+#ifdef CONFIG_FBCON_SPLASHSCREEN
+ if (p->splash_data && p->splash_data->oldscreen_base) {
+ oldscreen_base = p->screen_base;
+ p->screen_base = p->splash_data->oldscreen_base;
+ }
+ if (p->splash_data && p->splash_data->olddispsw) {
+ olddispsw = p->dispsw;
+ p->dispsw = p->splash_data->olddispsw;
+ }
+#endif
if (p->visual == FB_VISUAL_MONO01) {
if (p->screen_base)
fb_memset255(p->screen_base,
@@ -1583,25 +1688,39 @@
p->var.bits_per_pixel>>3);
} else {
unsigned short oldc;
- u_int height;
+ u_int height, width;
u_int y_break;
oldc = conp->vc_video_erase_char;
conp->vc_video_erase_char &= p->charmask;
height = conp->vc_rows;
+ width = conp->vc_cols;
y_break = p->vrows-p->yscroll;
+#ifdef CONFIG_FBCON_SPLASHSCREEN
+ if (splash_shown) {
+ width=p->var.xres/fontwidth(p);
+ height=p->var.yres/fontheight(p);
+ }
+#endif
if (height > y_break) {
- p->dispsw->clear(conp, p, real_y(p, 0), 0, y_break, conp->vc_cols);
- p->dispsw->clear(conp, p, real_y(p, y_break), 0, height-y_break, conp->vc_cols);
+ p->dispsw->clear(conp, p, real_y(p, 0), 0, y_break, width);
+ p->dispsw->clear(conp, p, real_y(p, y_break), 0, height-y_break, width);
} else
- p->dispsw->clear(conp, p, real_y(p, 0), 0, height, conp->vc_cols);
+ p->dispsw->clear(conp, p, real_y(p, 0), 0, height, width);
conp->vc_video_erase_char = oldc;
}
+#ifdef CONFIG_FBCON_SPLASHSCREEN
+ if(oldscreen_base)
+ p->screen_base=oldscreen_base;
+ if(olddispsw)
+ p->dispsw=olddispsw;
+#endif
return 0;
} else {
/* Tell console.c that it has to restore the screen itself */
return 1;
}
+
}
(*info->blank)(blank, info);
return 0;
@@ -1762,13 +1881,21 @@
if (resize) {
struct vc_data *conp = p->conp;
+ __u32 xres = p->var.xres, yres = p->var.yres;
+
/* reset wrap/pan */
p->var.xoffset = p->var.yoffset = p->yscroll = 0;
p->vrows = p->var.yres_virtual/h;
- if ((p->var.yres % h) && (p->var.yres_virtual % h < p->var.yres % h))
+#ifdef CONFIG_FBCON_SPLASHSCREEN
+ if (p->splash_data && p->splash_data->splash_state) {
+ xres = p->splash_data->splash_text_wi;
+ yres = p->splash_data->splash_text_he;
+ }
+#endif
+ if ((yres % h) && (p->var.yres_virtual % h < p->var.yres % h))
p->vrows--;
updatescrollmode(p);
- vc_resize_con( p->var.yres/h, p->var.xres/w, unit );
+ vc_resize_con( yres/h, xres/w, unit );
if (CON_IS_VISIBLE(conp) && softback_buf) {
int l = fbcon_softback_size / conp->vc_size_row;
if (l > 5)
@@ -2189,6 +2316,9 @@
if (p->fb_info->fbops->fb_rasterimg)
p->fb_info->fbops->fb_rasterimg(p->fb_info, 1);
+#ifdef CONFIG_FBCON_SPLASHSCREEN
+ if (!splash_shown) {
+#endif
for (x = 0; x < smp_num_cpus * (LOGO_W + 8) &&
x < p->var.xres - (LOGO_W + 8); x += (LOGO_W + 8)) {
@@ -2450,7 +2580,10 @@
}
#endif
}
-
+#ifdef CONFIG_FBCON_SPLASHSCREEN
+ }
+#endif
+
if (p->fb_info->fbops->fb_rasterimg)
p->fb_info->fbops->fb_rasterimg(p->fb_info, 0);
diff -urN linux-2.4.24.org/drivers/video/fbcon-jpegdec.c linux-2.4.24/drivers/video/fbcon-jpegdec.c
--- linux-2.4.24.org/drivers/video/fbcon-jpegdec.c 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.4.24/drivers/video/fbcon-jpegdec.c 2004-01-19 21:03:48.203682758 +0100
@@ -0,0 +1,960 @@
+/*
+ * linux/drivers/video/fbcon-jpegdec.c - a tiny jpeg decoder.
+ *
+ * (w) August 2001 by Michael Schroeder, <mls@suse.de>
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/string.h>
+#include <asm/byteorder.h>
+
+struct display;
+#include "fbcon-splash.h"
+#include "fbcon-jpegdec.h"
+
+#define ISHIFT 11
+
+#define IFIX(a) ((int)((a) * (1 << ISHIFT) + .5))
+#define IMULT(a, b) (((a) * (b)) >> ISHIFT)
+#define ITOINT(a) ((a) >> ISHIFT)
+
+#ifndef __P
+# define __P(x) x
+#endif
+
+/* special markers */
+#define M_BADHUFF -1
+#define M_EOF 0x80
+
+struct in {
+ unsigned char *p;
+ unsigned int bits;
+ int left;
+ int marker;
+
+ int (*func) __P((void *));
+ void *data;
+};
+
+/*********************************/
+struct dec_hufftbl;
+struct enc_hufftbl;
+
+union hufftblp {
+ struct dec_hufftbl *dhuff;
+ struct enc_hufftbl *ehuff;
+};
+
+struct scan {
+ int dc; /* old dc value */
+
+ union hufftblp hudc;
+ union hufftblp huac;
+ int next; /* when to switch to next scan */
+
+ int cid; /* component id */
+ int hv; /* horiz/vert, copied from comp */
+ int tq; /* quant tbl, copied from comp */
+};
+
+/*********************************/
+
+#define DECBITS 10 /* seems to be the optimum */
+
+struct dec_hufftbl {
+ int maxcode[17];
+ int valptr[16];
+ unsigned char vals[256];
+ unsigned int llvals[1 << DECBITS];
+};
+
+static void decode_mcus __P((struct in *, int *, int, struct scan *, int *));
+static int dec_readmarker __P((struct in *));
+static void dec_makehuff __P((struct dec_hufftbl *, int *, unsigned char *));
+
+static void setinput __P((struct in *, unsigned char *));
+/*********************************/
+
+#undef PREC
+#define PREC int
+
+static void idctqtab __P((unsigned char *, PREC *));
+static void idct __P((int *, int *, PREC *, PREC, int));
+static void scaleidctqtab __P((PREC *, PREC));
+
+/*********************************/
+
+static void initcol __P((PREC[][64]));
+
+static void col221111 __P((int *, unsigned char *, int));
+static void col221111_16 __P((int *, unsigned char *, int));
+
+/*********************************/
+
+#define M_SOI 0xd8
+#define M_APP0 0xe0
+#define M_DQT 0xdb
+#define M_SOF0 0xc0
+#define M_DHT 0xc4
+#define M_DRI 0xdd
+#define M_SOS 0xda
+#define M_RST0 0xd0
+#define M_EOI 0xd9
+#define M_COM 0xfe
+
+static unsigned char *datap;
+
+static int getbyte(void)
+{
+ return *datap++;
+}
+
+static int getword(void)
+{
+ int c1, c2;
+ c1 = *datap++;
+ c2 = *datap++;
+ return c1 << 8 | c2;
+}
+
+struct comp {
+ int cid;
+ int hv;
+ int tq;
+};
+
+#define MAXCOMP 4
+struct jpginfo {
+ int nc; /* number of components */
+ int ns; /* number of scans */
+ int dri; /* restart interval */
+ int nm; /* mcus til next marker */
+ int rm; /* next restart marker */
+};
+
+static struct jpginfo info;
+static struct comp comps[MAXCOMP];
+
+static struct scan dscans[MAXCOMP];
+
+static unsigned char quant[4][64];
+
+static struct dec_hufftbl dhuff[4];
+
+#define dec_huffdc (dhuff + 0)
+#define dec_huffac (dhuff + 2)
+
+static struct in in;
+
+static int readtables(int till)
+{
+ int m, l, i, j, lq, pq, tq;
+ int tc, th, tt;
+
+ for (;;) {
+ if (getbyte() != 0xff)
+ return -1;
+ if ((m = getbyte()) == till)
+ break;
+
+ switch (m) {
+ case 0xc2:
+ return 0;
+
+ case M_DQT:
+ lq = getword();
+ while (lq > 2) {
+ pq = getbyte();
+ tq = pq & 15;
+ if (tq > 3)
+ return -1;
+ pq >>= 4;
+ if (pq != 0)
+ return -1;
+ for (i = 0; i < 64; i++)
+ quant[tq][i] = getbyte();
+ lq -= 64 + 1;
+ }
+ break;
+
+ case M_DHT:
+ l = getword();
+ while (l > 2) {
+ int hufflen[16], k;
+ unsigned char huffvals[256];
+
+ tc = getbyte();
+ th = tc & 15;
+ tc >>= 4;
+ tt = tc * 2 + th;
+ if (tc > 1 || th > 1)
+ return -1;
+ for (i = 0; i < 16; i++)
+ hufflen[i] = getbyte();
+ l -= 1 + 16;
+ k = 0;
+ for (i = 0; i < 16; i++) {
+ for (j = 0; j < hufflen[i]; j++)
+ huffvals[k++] = getbyte();
+ l -= hufflen[i];
+ }
+ dec_makehuff(dhuff + tt, hufflen,
+ huffvals);
+ }
+ break;
+
+ case M_DRI:
+ l = getword();
+ info.dri = getword();
+ break;
+
+ default:
+ l = getword();
+ while (l-- > 2)
+ getbyte();
+ break;
+ }
+ }
+ return 0;
+}
+
+static void dec_initscans(void)
+{
+ int i;
+
+ info.nm = info.dri + 1;
+ info.rm = M_RST0;
+ for (i = 0; i < info.ns; i++)
+ dscans[i].dc = 0;
+}
+
+static int dec_checkmarker(void)
+{
+ int i;
+
+ if (dec_readmarker(&in) != info.rm)
+ return -1;
+ info.nm = info.dri;
+ info.rm = (info.rm + 1) & ~0x08;
+ for (i = 0; i < info.ns; i++)
+ dscans[i].dc = 0;
+ return 0;
+}
+
+int jpeg_check_size(unsigned char *buf, int width, int height)
+{
+ datap = buf;
+ getbyte();
+ getbyte();
+ readtables(M_SOF0);
+ getword();
+ getbyte();
+ if (height != getword() || width != getword())
+ return 0;
+ return 1;
+}
+
+int jpeg_decode(buf, pic, width, height, depth, decdata)
+unsigned char *buf, *pic;
+int width, height, depth;
+struct jpeg_decdata *decdata;
+{
+ int i, j, m, tac, tdc;
+ int mcusx, mcusy, mx, my;
+ int max[6];
+
+ if (!decdata)
+ return -1;
+ datap = buf;
+ if (getbyte() != 0xff)
+ return ERR_NO_SOI;
+ if (getbyte() != M_SOI)
+ return ERR_NO_SOI;
+ if (readtables(M_SOF0))
+ return ERR_BAD_TABLES;
+ getword();
+ i = getbyte();
+ if (i != 8)
+ return ERR_NOT_8BIT;
+ if (((getword() + 15) & ~15) != height)
+ return ERR_HEIGHT_MISMATCH;
+ if (((getword() + 15) & ~15) != width)
+ return ERR_WIDTH_MISMATCH;
+ if ((height & 15) || (width & 15))
+ return ERR_BAD_WIDTH_OR_HEIGHT;
+ info.nc = getbyte();
+ if (info.nc > MAXCOMP)
+ return ERR_TOO_MANY_COMPPS;
+ for (i = 0; i < info.nc; i++) {
+ int h, v;
+ comps[i].cid = getbyte();
+ comps[i].hv = getbyte();
+ v = comps[i].hv & 15;
+ h = comps[i].hv >> 4;
+ comps[i].tq = getbyte();
+ if (h > 3 || v > 3)
+ return ERR_ILLEGAL_HV;
+ if (comps[i].tq > 3)
+ return ERR_QUANT_TABLE_SELECTOR;
+ }
+ if (readtables(M_SOS))
+ return ERR_BAD_TABLES;
+ getword();
+ info.ns = getbyte();
+ if (info.ns != 3)
+ return ERR_NOT_YCBCR_221111;
+ for (i = 0; i < 3; i++) {
+ dscans[i].cid = getbyte();
+ tdc = getbyte();
+ tac = tdc & 15;
+ tdc >>= 4;
+ if (tdc > 1 || tac > 1)
+ return ERR_QUANT_TABLE_SELECTOR;
+ for (j = 0; j < info.nc; j++)
+ if (comps[j].cid == dscans[i].cid)
+ break;
+ if (j == info.nc)
+ return ERR_UNKNOWN_CID_IN_SCAN;
+ dscans[i].hv = comps[j].hv;
+ dscans[i].tq = comps[j].tq;
+ dscans[i].hudc.dhuff = dec_huffdc + tdc;
+ dscans[i].huac.dhuff = dec_huffac + tac;
+ }
+
+ i = getbyte();
+ j = getbyte();
+ m = getbyte();
+
+ if (i != 0 || j != 63 || m != 0)
+ return ERR_NOT_SEQUENTIAL_DCT;
+
+ if (dscans[0].cid != 1 || dscans[1].cid != 2 || dscans[2].cid != 3)
+ return ERR_NOT_YCBCR_221111;
+
+ if (dscans[0].hv != 0x22 || dscans[1].hv != 0x11 || dscans[2].hv != 0x11)
+ return ERR_NOT_YCBCR_221111;
+
+ mcusx = width >> 4;
+ mcusy = height >> 4;
+
+
+ idctqtab(quant[dscans[0].tq], decdata->dquant[0]);
+ idctqtab(quant[dscans[1].tq], decdata->dquant[1]);
+ idctqtab(quant[dscans[2].tq], decdata->dquant[2]);
+ initcol(decdata->dquant);
+ setinput(&in, datap);
+
+#if 0
+ /* landing zone */
+ img[len] = 0;
+ img[len + 1] = 0xff;
+ img[len + 2] = M_EOF;
+#endif
+
+ dec_initscans();
+
+ dscans[0].next = 6 - 4;
+ dscans[1].next = 6 - 4 - 1;
+ dscans[2].next = 6 - 4 - 1 - 1; /* 411 encoding */
+ for (my = 0; my < mcusy; my++) {
+ for (mx = 0; mx < mcusx; mx++) {
+ if (info.dri && !--info.nm)
+ if (dec_checkmarker())
+ return ERR_WRONG_MARKER;
+
+ decode_mcus(&in, decdata->dcts, 6, dscans, max);
+ idct(decdata->dcts, decdata->out, decdata->dquant[0], IFIX(128.5), max[0]);
+ idct(decdata->dcts + 64, decdata->out + 64, decdata->dquant[0], IFIX(128.5), max[1]);
+ idct(decdata->dcts + 128, decdata->out + 128, decdata->dquant[0], IFIX(128.5), max[2]);
+ idct(decdata->dcts + 192, decdata->out + 192, decdata->dquant[0], IFIX(128.5), max[3]);
+ idct(decdata->dcts + 256, decdata->out + 256, decdata->dquant[1], IFIX(0.5), max[4]);
+ idct(decdata->dcts + 320, decdata->out + 320, decdata->dquant[2], IFIX(0.5), max[5]);
+
+ switch (depth) {
+ case 24:
+ col221111(decdata->out, pic + (my * 16 * mcusx + mx) * 16 * 3, mcusx * 16 * 3);
+ break;
+ case 16:
+ col221111_16(decdata->out, pic + (my * 16 * mcusx + mx) * (16 * 2), mcusx * (16 * 2));
+ break;
+ default:
+ return ERR_DEPTH_MISMATCH;
+ break;
+ }
+ }
+ }
+
+ m = dec_readmarker(&in);
+ if (m != M_EOI)
+ return ERR_NO_EOI;
+
+ return 0;
+}
+
+/****************************************************************/
+/************** huffman decoder ***************/
+/****************************************************************/
+
+static int fillbits __P((struct in *, int, unsigned int));
+static int dec_rec2
+__P((struct in *, struct dec_hufftbl *, int *, int, int));
+
+static void setinput(in, p)
+struct in *in;
+unsigned char *p;
+{
+ in->p = p;
+ in->left = 0;
+ in->bits = 0;
+ in->marker = 0;
+}
+
+static int fillbits(in, le, bi)
+struct in *in;
+int le;
+unsigned int bi;
+{
+ int b, m;
+
+ if (in->marker) {
+ if (le <= 16)
+ in->bits = bi << 16, le += 16;
+ return le;
+ }
+ while (le <= 24) {
+ b = *in->p++;
+ if (b == 0xff && (m = *in->p++) != 0) {
+ if (m == M_EOF) {
+ if (in->func && (m = in->func(in->data)) == 0)
+ continue;
+ }
+ in->marker = m;
+ if (le <= 16)
+ bi = bi << 16, le += 16;
+ break;
+ }
+ bi = bi << 8 | b;
+ le += 8;
+ }
+ in->bits = bi; /* tmp... 2 return values needed */
+ return le;
+}
+
+static int dec_readmarker(in)
+struct in *in;
+{
+ int m;
+
+ in->left = fillbits(in, in->left, in->bits);
+ if ((m = in->marker) == 0)
+ return 0;
+ in->left = 0;
+ in->marker = 0;
+ return m;
+}
+
+#define LEBI_DCL int le, bi
+#define LEBI_GET(in) (le = in->left, bi = in->bits)
+#define LEBI_PUT(in) (in->left = le, in->bits = bi)
+
+#define GETBITS(in, n) ( \
+ (le < (n) ? le = fillbits(in, le, bi), bi = in->bits : 0), \
+ (le -= (n)), \
+ bi >> le & ((1 << (n)) - 1) \
+)
+
+#define UNGETBITS(in, n) ( \
+ le += (n) \
+)
+
+
+static int dec_rec2(in, hu, runp, c, i)
+struct in *in;
+struct dec_hufftbl *hu;
+int *runp;
+int c, i;
+{
+ LEBI_DCL;
+
+ LEBI_GET(in);
+ if (i) {
+ UNGETBITS(in, i & 127);
+ *runp = i >> 8 & 15;
+ i >>= 16;
+ } else {
+ for (i = DECBITS; (c = ((c << 1) | GETBITS(in, 1))) >= (hu->maxcode[i]); i++);
+ if (i >= 16) {
+ in->marker = M_BADHUFF;
+ return 0;
+ }
+ i = hu->vals[hu->valptr[i] + c - hu->maxcode[i - 1] * 2];
+ *runp = i >> 4;
+ i &= 15;
+ }
+ if (i == 0) { /* sigh, 0xf0 is 11 bit */
+ LEBI_PUT(in);
+ return 0;
+ }
+ /* receive part */
+ c = GETBITS(in, i);
+ if (c < (1 << (i - 1)))
+ c += (-1 << i) + 1;
+ LEBI_PUT(in);
+ return c;
+}
+
+#define DEC_REC(in, hu, r, i) ( \
+ r = GETBITS(in, DECBITS), \
+ i = hu->llvals[r], \
+ i & 128 ? \
+ ( \
+ UNGETBITS(in, i & 127), \
+ r = i >> 8 & 15, \
+ i >> 16 \
+ ) \
+ : \
+ ( \
+ LEBI_PUT(in), \
+ i = dec_rec2(in, hu, &r, r, i), \
+ LEBI_GET(in), \
+ i \
+ ) \
+)
+
+static void decode_mcus(in, dct, n, sc, maxp)
+struct in *in;
+int *dct;
+int n;
+struct scan *sc;
+int *maxp;
+{
+ struct dec_hufftbl *hu;
+ int i, r, t;
+ LEBI_DCL;
+
+ memset(dct, 0, n * 64 * sizeof(*dct));
+ LEBI_GET(in);
+ while (n-- > 0) {
+ hu = sc->hudc.dhuff;
+ *dct++ = (sc->dc += DEC_REC(in, hu, r, t));
+
+ hu = sc->huac.dhuff;
+ i = 63;
+ while (i > 0) {
+ t = DEC_REC(in, hu, r, t);
+ if (t == 0 && r == 0) {
+ dct += i;
+ break;
+ }
+ dct += r;
+ *dct++ = t;
+ i -= r + 1;
+ }
+ *maxp++ = 64 - i;
+ if (n == sc->next)
+ sc++;
+ }
+ LEBI_PUT(in);
+}
+
+static void dec_makehuff(hu, hufflen, huffvals)
+struct dec_hufftbl *hu;
+int *hufflen;
+unsigned char *huffvals;
+{
+ int code, k, i, j, d, x, c, v;
+ for (i = 0; i < (1 << DECBITS); i++)
+ hu->llvals[i] = 0;
+
+/*
+ * llvals layout:
+ *
+ * value v already known, run r, backup u bits:
+ * vvvvvvvvvvvvvvvv 0000 rrrr 1 uuuuuuu
+ * value unknown, size b bits, run r, backup u bits:
+ * 000000000000bbbb 0000 rrrr 0 uuuuuuu
+ * value and size unknown:
+ * 0000000000000000 0000 0000 0 0000000
+ */
+ code = 0;
+ k = 0;
+ for (i = 0; i < 16; i++, code <<= 1) { /* sizes */
+ hu->valptr[i] = k;
+ for (j = 0; j < hufflen[i]; j++) {
+ hu->vals[k] = *huffvals++;
+ if (i < DECBITS) {
+ c = code << (DECBITS - 1 - i);
+ v = hu->vals[k] & 0x0f; /* size */
+ for (d = 1 << (DECBITS - 1 - i); --d >= 0;) {
+ if (v + i < DECBITS) { /* both fit in table */
+ x = d >> (DECBITS - 1 - v -
+ i);
+ if (v && x < (1 << (v - 1)))
+ x += (-1 << v) + 1;
+ x = x << 16 | (hu-> vals[k] & 0xf0) << 4 |
+ (DECBITS - (i + 1 + v)) | 128;
+ } else
+ x = v << 16 | (hu-> vals[k] & 0xf0) << 4 |
+ (DECBITS - (i + 1));
+ hu->llvals[c | d] = x;
+ }
+ }
+ code++;
+ k++;
+ }
+ hu->maxcode[i] = code;
+ }
+ hu->maxcode[16] = 0x20000; /* always terminate decode */
+}
+
+/****************************************************************/
+/************** idct ***************/
+/****************************************************************/
+
+#define ONE ((PREC)IFIX(1.))
+#define S2 ((PREC)IFIX(0.382683432))
+#define C2 ((PREC)IFIX(0.923879532))
+#define C4 ((PREC)IFIX(0.707106781))
+
+#define S22 ((PREC)IFIX(2 * 0.382683432))
+#define C22 ((PREC)IFIX(2 * 0.923879532))
+#define IC4 ((PREC)IFIX(1 / 0.707106781))
+
+#define C3IC1 ((PREC)IFIX(0.847759065)) /* c3/c1 */
+#define C5IC1 ((PREC)IFIX(0.566454497)) /* c5/c1 */
+#define C7IC1 ((PREC)IFIX(0.198912367)) /* c7/c1 */
+
+#define XPP(a,b) (t = a + b, b = a - b, a = t)
+#define XMP(a,b) (t = a - b, b = a + b, a = t)
+#define XPM(a,b) (t = a + b, b = b - a, a = t)
+
+#define ROT(a,b,s,c) ( t = IMULT(a + b, s), \
+ a = IMULT(a, c - s) + t, \
+ b = IMULT(b, c + s) - t)
+
+#define IDCT \
+( \
+ XPP(t0, t1), \
+ XMP(t2, t3), \
+ t2 = IMULT(t2, IC4) - t3, \
+ XPP(t0, t3), \
+ XPP(t1, t2), \
+ XMP(t4, t7), \
+ XPP(t5, t6), \
+ XMP(t5, t7), \
+ t5 = IMULT(t5, IC4), \
+ ROT(t4, t6, S22, C22),\
+ t6 -= t7, \
+ t5 -= t6, \
+ t4 -= t5, \
+ XPP(t0, t7), \
+ XPP(t1, t6), \
+ XPP(t2, t5), \
+ XPP(t3, t4) \
+)
+
+static unsigned char zig2[64] = {
+ 0, 2, 3, 9, 10, 20, 21, 35,
+ 14, 16, 25, 31, 39, 46, 50, 57,
+ 5, 7, 12, 18, 23, 33, 37, 48,
+ 27, 29, 41, 44, 52, 55, 59, 62,
+ 15, 26, 30, 40, 45, 51, 56, 58,
+ 1, 4, 8, 11, 19, 22, 34, 36,
+ 28, 42, 43, 53, 54, 60, 61, 63,
+ 6, 13, 17, 24, 32, 38, 47, 49
+};
+
+void idct(in, out, quant, off, max)
+int *in;
+int *out;
+PREC *quant;
+PREC off;
+int max;
+{
+ PREC t0, t1, t2, t3, t4, t5, t6, t7, t;
+ PREC tmp[64], *tmpp;
+ int i, j;
+ unsigned char *zig2p;
+
+ t0 = off;
+ if (max == 1) {
+ t0 += in[0] * quant[0];
+ for (i = 0; i < 64; i++)
+ out[i] = ITOINT(t0);
+ return;
+ }
+ zig2p = zig2;
+ tmpp = tmp;
+ for (i = 0; i < 8; i++) {
+ j = *zig2p++;
+ t0 += in[j] * quant[j];
+ j = *zig2p++;
+ t5 = in[j] * quant[j];
+ j = *zig2p++;
+ t2 = in[j] * quant[j];
+ j = *zig2p++;
+ t7 = in[j] * quant[j];
+ j = *zig2p++;
+ t1 = in[j] * quant[j];
+ j = *zig2p++;
+ t4 = in[j] * quant[j];
+ j = *zig2p++;
+ t3 = in[j] * quant[j];
+ j = *zig2p++;
+ t6 = in[j] * quant[j];
+ IDCT;
+ tmpp[0 * 8] = t0;
+ tmpp[1 * 8] = t1;
+ tmpp[2 * 8] = t2;
+ tmpp[3 * 8] = t3;
+ tmpp[4 * 8] = t4;
+ tmpp[5 * 8] = t5;
+ tmpp[6 * 8] = t6;
+ tmpp[7 * 8] = t7;
+ tmpp++;
+ t0 = 0;
+ }
+ for (i = 0; i < 8; i++) {
+ t0 = tmp[8 * i + 0];
+ t1 = tmp[8 * i + 1];
+ t2 = tmp[8 * i + 2];
+ t3 = tmp[8 * i + 3];
+ t4 = tmp[8 * i + 4];
+ t5 = tmp[8 * i + 5];
+ t6 = tmp[8 * i + 6];
+ t7 = tmp[8 * i + 7];
+ IDCT;
+ out[8 * i + 0] = ITOINT(t0);
+ out[8 * i + 1] = ITOINT(t1);
+ out[8 * i + 2] = ITOINT(t2);
+ out[8 * i + 3] = ITOINT(t3);
+ out[8 * i + 4] = ITOINT(t4);
+ out[8 * i + 5] = ITOINT(t5);
+ out[8 * i + 6] = ITOINT(t6);
+ out[8 * i + 7] = ITOINT(t7);
+ }
+}
+
+static unsigned char zig[64] = {
+ 0, 1, 5, 6, 14, 15, 27, 28,
+ 2, 4, 7, 13, 16, 26, 29, 42,
+ 3, 8, 12, 17, 25, 30, 41, 43,
+ 9, 11, 18, 24, 31, 40, 44, 53,
+ 10, 19, 23, 32, 39, 45, 52, 54,
+ 20, 22, 33, 38, 46, 51, 55, 60,
+ 21, 34, 37, 47, 50, 56, 59, 61,
+ 35, 36, 48, 49, 57, 58, 62, 63
+};
+
+static PREC aaidct[8] = {
+ IFIX(0.3535533906), IFIX(0.4903926402),
+ IFIX(0.4619397663), IFIX(0.4157348062),
+ IFIX(0.3535533906), IFIX(0.2777851165),
+ IFIX(0.1913417162), IFIX(0.0975451610)
+};
+
+
+static void idctqtab(qin, qout)
+unsigned char *qin;
+PREC *qout;
+{
+ int i, j;
+
+ for (i = 0; i < 8; i++)
+ for (j = 0; j < 8; j++)
+ qout[zig[i * 8 + j]] = qin[zig[i * 8 + j]] *
+ IMULT(aaidct[i], aaidct[j]);
+}
+
+static void scaleidctqtab(q, sc)
+PREC *q;
+PREC sc;
+{
+ int i;
+
+ for (i = 0; i < 64; i++)
+ q[i] = IMULT(q[i], sc);
+}
+
+/****************************************************************/
+/************** color decoder ***************/
+/****************************************************************/
+
+#define ROUND
+
+/*
+ * YCbCr Color transformation:
+ *
+ * y:0..255 Cb:-128..127 Cr:-128..127
+ *
+ * R = Y + 1.40200 * Cr
+ * G = Y - 0.34414 * Cb - 0.71414 * Cr
+ * B = Y + 1.77200 * Cb
+ *
+ * =>
+ * Cr *= 1.40200;
+ * Cb *= 1.77200;
+ * Cg = 0.19421 * Cb + .50937 * Cr;
+ * R = Y + Cr;
+ * G = Y - Cg;
+ * B = Y + Cb;
+ *
+ * =>
+ * Cg = (50 * Cb + 130 * Cr + 128) >> 8;
+ */
+
+static void initcol(q)
+PREC q[][64];
+{
+ scaleidctqtab(q[1], IFIX(1.77200));
+ scaleidctqtab(q[2], IFIX(1.40200));
+}
+
+/* This is optimized for the stupid sun SUNWspro compiler. */
+#define STORECLAMP(a,x) \
+( \
+ (a) = (x), \
+ (unsigned int)(x) >= 256 ? \
+ ((a) = (x) < 0 ? 0 : 255) \
+ : \
+ 0 \
+)
+
+#define CLAMP(x) ((unsigned int)(x) >= 256 ? ((x) < 0 ? 0 : 255) : (x))
+
+#ifdef ROUND
+
+#define CBCRCG(yin, xin) \
+( \
+ cb = outc[0 +yin*8+xin], \
+ cr = outc[64+yin*8+xin], \
+ cg = (50 * cb + 130 * cr + 128) >> 8 \
+)
+
+#else
+
+#define CBCRCG(yin, xin) \
+( \
+ cb = outc[0 +yin*8+xin], \
+ cr = outc[64+yin*8+xin], \
+ cg = (3 * cb + 8 * cr) >> 4 \
+)
+
+#endif
+
+#define PIC(yin, xin, p, xout) \
+( \
+ y = outy[(yin) * 8 + xin], \
+ STORECLAMP(p[(xout) * 3 + 0], y + cr), \
+ STORECLAMP(p[(xout) * 3 + 1], y - cg), \
+ STORECLAMP(p[(xout) * 3 + 2], y + cb) \
+)
+
+#ifdef __LITTLE_ENDIAN
+#define PIC_16(yin, xin, p, xout, add) \
+( \
+ y = outy[(yin) * 8 + xin], \
+ y = ((CLAMP(y + cr + add*2+1) & 0xf8) << 8) | \
+ ((CLAMP(y - cg + add ) & 0xfc) << 3) | \
+ ((CLAMP(y + cb + add*2+1) ) >> 3), \
+ p[(xout) * 2 + 0] = y & 0xff, \
+ p[(xout) * 2 + 1] = y >> 8 \
+)
+#else
+#ifdef CONFIG_PPC
+#define PIC_16(yin, xin, p, xout, add) \
+( \
+ y = outy[(yin) * 8 + xin], \
+ y = ((CLAMP(y + cr + add*2+1) & 0xf8) << 7) | \
+ ((CLAMP(y - cg + add*2+1) & 0xf8) << 2) | \
+ ((CLAMP(y + cb + add*2+1) ) >> 3), \
+ p[(xout) * 2 + 0] = y >> 8, \
+ p[(xout) * 2 + 1] = y & 0xff \
+)
+#else
+#define PIC_16(yin, xin, p, xout, add) \
+( \
+ y = outy[(yin) * 8 + xin], \
+ y = ((CLAMP(y + cr + add*2+1) & 0xf8) << 8) | \
+ ((CLAMP(y - cg + add ) & 0xfc) << 3) | \
+ ((CLAMP(y + cb + add*2+1) ) >> 3), \
+ p[(xout) * 2 + 0] = y >> 8, \
+ p[(xout) * 2 + 1] = y & 0xff \
+)
+#endif
+#endif
+
+#define PIC221111(xin) \
+( \
+ CBCRCG(0, xin), \
+ PIC(xin / 4 * 8 + 0, (xin & 3) * 2 + 0, pic0, xin * 2 + 0), \
+ PIC(xin / 4 * 8 + 0, (xin & 3) * 2 + 1, pic0, xin * 2 + 1), \
+ PIC(xin / 4 * 8 + 1, (xin & 3) * 2 + 0, pic1, xin * 2 + 0), \
+ PIC(xin / 4 * 8 + 1, (xin & 3) * 2 + 1, pic1, xin * 2 + 1) \
+)
+
+#define PIC221111_16(xin) \
+( \
+ CBCRCG(0, xin), \
+ PIC_16(xin / 4 * 8 + 0, (xin & 3) * 2 + 0, pic0, xin * 2 + 0, 3), \
+ PIC_16(xin / 4 * 8 + 0, (xin & 3) * 2 + 1, pic0, xin * 2 + 1, 0), \
+ PIC_16(xin / 4 * 8 + 1, (xin & 3) * 2 + 0, pic1, xin * 2 + 0, 1), \
+ PIC_16(xin / 4 * 8 + 1, (xin & 3) * 2 + 1, pic1, xin * 2 + 1, 2) \
+)
+
+static void col221111(out, pic, width)
+int *out;
+unsigned char *pic;
+int width;
+{
+ int i, j, k;
+ unsigned char *pic0, *pic1;
+ int *outy, *outc;
+ int cr, cg, cb, y;
+
+ pic0 = pic;
+ pic1 = pic + width;
+ outy = out;
+ outc = out + 64 * 4;
+ for (i = 2; i > 0; i--) {
+ for (j = 4; j > 0; j--) {
+ for (k = 0; k < 8; k++) {
+ PIC221111(k);
+ }
+ outc += 8;
+ outy += 16;
+ pic0 += 2 * width;
+ pic1 += 2 * width;
+ }
+ outy += 64 * 2 - 16 * 4;
+ }
+}
+
+static void col221111_16(out, pic, width)
+int *out;
+unsigned char *pic;
+int width;
+{
+ int i, j, k;
+ unsigned char *pic0, *pic1;
+ int *outy, *outc;
+ int cr, cg, cb, y;
+
+ pic0 = pic;
+ pic1 = pic + width;
+ outy = out;
+ outc = out + 64 * 4;
+ for (i = 2; i > 0; i--) {
+ for (j = 4; j > 0; j--) {
+ for (k = 0; k < 8; k++) {
+ PIC221111_16(k);
+ }
+ outc += 8;
+ outy += 16;
+ pic0 += 2 * width;
+ pic1 += 2 * width;
+ }
+ outy += 64 * 2 - 16 * 4;
+ }
+}
diff -urN linux-2.4.24.org/drivers/video/fbcon-jpegdec.h linux-2.4.24/drivers/video/fbcon-jpegdec.h
--- linux-2.4.24.org/drivers/video/fbcon-jpegdec.h 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.4.24/drivers/video/fbcon-jpegdec.h 2004-01-19 21:03:48.205682343 +0100
@@ -0,0 +1,24 @@
+#define ERR_NO_SOI 1
+#define ERR_NOT_8BIT 2
+#define ERR_HEIGHT_MISMATCH 3
+#define ERR_WIDTH_MISMATCH 4
+#define ERR_BAD_WIDTH_OR_HEIGHT 5
+#define ERR_TOO_MANY_COMPPS 6
+#define ERR_ILLEGAL_HV 7
+#define ERR_QUANT_TABLE_SELECTOR 8
+#define ERR_NOT_YCBCR_221111 9
+#define ERR_UNKNOWN_CID_IN_SCAN 10
+#define ERR_NOT_SEQUENTIAL_DCT 11
+#define ERR_WRONG_MARKER 12
+#define ERR_NO_EOI 13
+#define ERR_BAD_TABLES 14
+#define ERR_DEPTH_MISMATCH 15
+
+struct jpeg_decdata {
+ int dcts[6 * 64 + 16];
+ int out[64 * 6];
+ int dquant[3][64];
+};
+
+extern int jpeg_decode(unsigned char *, unsigned char *, int, int, int, struct jpeg_decdata *);
+extern int jpeg_check_size(unsigned char *, int, int);
diff -urN linux-2.4.24.org/drivers/video/fbcon-splash16.c linux-2.4.24/drivers/video/fbcon-splash16.c
--- linux-2.4.24.org/drivers/video/fbcon-splash16.c 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.4.24/drivers/video/fbcon-splash16.c 2004-01-19 21:03:48.209681511 +0100
@@ -0,0 +1,488 @@
+/*
+ * linux/drivers/video/fbcon-splash16.c -- Low level frame buffer operations for 16 bpp
+ * framebuffer operation. Modified to present
+ * boot splash screen. 2002/11/7 stepan@suse.de
+ *
+ * Based on linux/drivers/video/fbcon-cfb16.c, which is
+ *
+ * Created 5 Apr 1997 by Geert Uytterhoeven
+ *
+ * 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/config.h>
+#include <linux/tty.h>
+#include <linux/console.h>
+#include <linux/string.h>
+#include <linux/fb.h>
+#include <asm/io.h>
+
+#include <video/fbcon.h>
+#include <video/fbcon-cfb16.h>
+
+#include "fbcon-splash.h"
+
+ /*
+ * 16 bpp packed pixels
+ */
+
+static u32 tab_cfb16[] = {
+#if defined(__BIG_ENDIAN)
+ 0x00000000, 0x0000ffff, 0xffff0000, 0xffffffff
+#elif defined(__LITTLE_ENDIAN)
+ 0x00000000, 0xffff0000, 0x0000ffff, 0xffffffff
+#else
+#error FIXME: No endianness??
+#endif
+};
+
+void fbcon_splash16_bmove(struct display *p, int sy, int sx, int dy, int dx,
+ int height, int width)
+{
+ int bytes = p->next_line, linesize = bytes * fontheight(p), rows;
+ u8 *src, *dst;
+
+ if (sx == 0 && dx == 0 && width * fontwidth(p) * 2 == bytes) {
+ fb_memmove(p->screen_base + dy * linesize,
+ p->screen_base + sy * linesize,
+ height * linesize);
+ return;
+ }
+ if (fontwidthlog(p)) {
+ sx <<= fontwidthlog(p)+1;
+ dx <<= fontwidthlog(p)+1;
+ width <<= fontwidthlog(p)+1;
+ } else {
+ sx *= fontwidth(p)*2;
+ dx *= fontwidth(p)*2;
+ width *= fontwidth(p)*2;
+ }
+ sx += splash_data.splash_text_xo*2 + splash_data.splash_text_yo * bytes;
+ dx += splash_data.splash_text_xo*2 + splash_data.splash_text_yo * bytes;
+ if (dy < sy || (dy == sy && dx < sx)) {
+ src = p->screen_base + sy * linesize + sx;
+ dst = p->screen_base + dy * linesize + dx;
+ for (rows = height * fontheight(p); rows--;) {
+ fb_memmove(dst, src, width);
+ src += bytes;
+ dst += bytes;
+ }
+ } else {
+ src = p->screen_base + (sy+height) * linesize + sx - bytes;
+ dst = p->screen_base + (dy+height) * linesize + dx - bytes;
+ for (rows = height * fontheight(p); rows--;) {
+ fb_memmove(dst, src, width);
+ src -= bytes;
+ dst -= bytes;
+ }
+ }
+}
+
+static inline void rectfill(u8 *dest, int width, int height, u32 data,
+ int linesize)
+{
+ int i;
+
+ data |= data<<16;
+
+ while (height-- > 0) {
+ u32 *p = (u32 *)dest;
+ for (i = 0; i < width/4; i++) {
+ fb_writel(data, p++);
+ fb_writel(data, p++);
+ }
+ if (width & 2)
+ fb_writel(data, p++);
+ if (width & 1)
+ fb_writew(data, (u16*)p);
+ dest += linesize;
+ }
+}
+
+void splashfill(u8 *dest, u8 *src, int width, int height,
+ int dest_linesize, int src_linesize)
+{
+
+ int i;
+
+ while (height-- > 0) {
+ u32 *p = (u32 *)dest;
+ u32 *q = (u32 *)src;
+
+ for (i=0; i < width/4; i++) {
+ fb_writel(*q++,p++);
+ fb_writel(*q++,p++);
+ }
+ if (width & 2)
+ fb_writel(*q++,p++);
+ if (width & 1)
+ fb_writew(*(u16*)q,(u16*)p);
+ dest += dest_linesize;
+ src += src_linesize;
+ }
+}
+
+void fbcon_splash16_clear(struct vc_data *conp, struct display *p, int sy, int sx,
+ int height, int width)
+{
+ u8 *dest;
+ int bytes = p->next_line, lines = height * fontheight(p);
+ u32 bgx;
+ int offset, transparent=0;
+
+ dest = p->screen_base + sy * fontheight(p) * bytes + sx * fontwidth(p) * 2;
+
+ bgx = ((u16 *)p->dispsw_data)[attr_bgcol_ec(p, conp)];
+
+ width *= fontwidth(p)/4;
+
+ dest += splash_data.splash_text_yo * bytes +
+ splash_data.splash_text_xo * 2;
+
+ transparent = (splash_data.splash_color == attr_bgcol_ec(p, conp));
+
+ if (transparent) {
+ offset = (sy * fontheight(p) + splash_data.splash_text_yo) * splash_bytes +
+ (sx * fontwidth(p) + splash_data.splash_text_xo) * 2;
+
+ if ((width * 8 == bytes && splash_bytes == bytes))
+ splashfill(dest,linux_splash + offset, lines * width * 4,
+ 1, bytes, splash_bytes);
+ else
+ splashfill(dest,linux_splash + offset, width*4, lines,
+ bytes, splash_bytes);
+ } else {
+ if (width * 8 == bytes)
+ rectfill(dest, lines * width * 4, 1, bgx, bytes);
+ else
+ rectfill(dest, width * 4, lines, bgx, bytes);
+ }
+}
+
+
+/*
+ * Helper function to read the background from the splashscreen
+ */
+# define SPLASH_BGX(off) \
+ if (transparent) { \
+ bgx = *(u32*)(splashbgx + (off)); \
+ eorx = fgx ^ bgx; \
+ }
+
+
+void fbcon_splash16_putc(struct vc_data *conp, struct display *p, int c, int yy,
+ int xx)
+{
+ u8 *dest, *cdat, bits;
+ int bytes = p->next_line, rows;
+ u32 eorx, fgx, bgx;
+ int transparent = 0;
+ u8 *splashbgx = 0;
+
+ dest = p->screen_base + yy * fontheight(p) * bytes + xx * fontwidth(p) * 2;
+
+ fgx = ((u16 *)p->dispsw_data)[attr_fgcol(p, c)];
+ bgx = ((u16 *)p->dispsw_data)[attr_bgcol(p, c)];
+
+ transparent = (splash_data.splash_color == attr_bgcol(p, c));
+
+ dest += splash_data.splash_text_xo * 2 + splash_data.splash_text_yo * bytes;
+ splashbgx = linux_splash +
+ (yy * fontheight(p) + splash_data.splash_text_yo) * splash_bytes +
+ (xx * fontwidth(p) + splash_data.splash_text_xo) * 2;
+
+ if (transparent && splash_data.splash_color == 0xf) {
+ if (fgx == 0xffea)
+ fgx = 0xfe4a;
+ else if (fgx == 0x57ea)
+ fgx = 0x0540;
+ else if (fgx == 0xffff)
+ fgx = 0x52aa;
+ }
+
+ fgx |= (fgx << 16);
+ bgx |= (bgx << 16);
+ eorx = fgx ^ bgx;
+
+ switch (fontwidth(p)) {
+ case 4:
+ case 8:
+ cdat = p->fontdata + (c & p->charmask) * fontheight(p);
+ for (rows = fontheight(p); rows--; dest += bytes) {
+ bits = *cdat++;
+ SPLASH_BGX(0);
+ fb_writel((tab_cfb16[bits >> 6] & eorx) ^ bgx, dest);
+ SPLASH_BGX(4);
+ fb_writel((tab_cfb16[bits >> 4 & 3] & eorx) ^ bgx, dest+4);
+ if (fontwidth(p) == 8) {
+ SPLASH_BGX(8);
+ fb_writel((tab_cfb16[bits >> 2 & 3] & eorx) ^ bgx, dest+8);
+ SPLASH_BGX(12);
+ fb_writel((tab_cfb16[bits & 3] & eorx) ^ bgx, dest+12);
+ }
+
+ splashbgx += splash_bytes;
+
+ }
+ break;
+ case 12:
+ case 16:
+ cdat = p->fontdata + ((c & p->charmask) * fontheight(p) << 1);
+ for (rows = fontheight(p); rows--; dest += bytes) {
+ bits = *cdat++;
+ SPLASH_BGX(0);
+ fb_writel((tab_cfb16[bits >> 6] & eorx) ^ bgx, dest);
+ SPLASH_BGX(4);
+ fb_writel((tab_cfb16[bits >> 4 & 3] & eorx) ^ bgx, dest+4);
+ SPLASH_BGX(8);
+ fb_writel((tab_cfb16[bits >> 2 & 3] & eorx) ^ bgx, dest+8);
+ SPLASH_BGX(12);
+ fb_writel((tab_cfb16[bits & 3] & eorx) ^ bgx, dest+12);
+ bits = *cdat++;
+ SPLASH_BGX(16);
+ fb_writel((tab_cfb16[bits >> 6] & eorx) ^ bgx, dest+16);
+ SPLASH_BGX(20);
+ fb_writel((tab_cfb16[bits >> 4 & 3] & eorx) ^ bgx, dest+20);
+ if (fontwidth(p) == 16) {
+ SPLASH_BGX(24);
+ fb_writel((tab_cfb16[bits >> 2 & 3] & eorx) ^ bgx, dest+24);
+ SPLASH_BGX(28);
+ fb_writel((tab_cfb16[bits & 3] & eorx) ^ bgx, dest+28);
+ }
+ }
+ break;
+ }
+}
+
+void fbcon_splash16_putcs(struct vc_data *conp, struct display *p,
+ const unsigned short *s, int count, int yy, int xx)
+{
+ u8 *cdat, *dest, *dest0;
+ u16 c;
+ int rows, bytes = p->next_line;
+ u32 eorx, fgx, bgx;
+ int transparent = 0;
+ u8 *splashbgx0 = 0, *splashbgx;
+
+ dest0 = p->screen_base + yy * fontheight(p) * bytes + xx * fontwidth(p) * 2;
+ c = scr_readw(s);
+ fgx = ((u16 *)p->dispsw_data)[attr_fgcol(p, c)];
+ bgx = ((u16 *)p->dispsw_data)[attr_bgcol(p, c)];
+
+ transparent = (splash_data.splash_color == attr_bgcol(p, c));
+
+ dest0 += splash_data.splash_text_xo * 2 + splash_data.splash_text_yo * bytes;
+ splashbgx0 = linux_splash +
+ (yy * fontheight(p) + splash_data.splash_text_yo) * splash_bytes +
+ (xx * fontwidth(p) + splash_data.splash_text_xo) * 2;
+
+ if (transparent && splash_data.splash_color == 0xf) {
+ if (fgx == 0xffea)
+ fgx = 0xfe4a;
+ else if (fgx == 0x57ea)
+ fgx = 0x0540;
+ else if (fgx == 0xffff)
+ fgx = 0x52aa;
+ }
+
+ fgx |= (fgx << 16);
+ bgx |= (bgx << 16);
+ eorx = fgx ^ bgx;
+
+ switch (fontwidth(p)) {
+ case 4:
+ case 8:
+ while (count--) {
+ c = scr_readw(s++) & p->charmask;
+ cdat = p->fontdata + c * fontheight(p);
+
+ splashbgx = splashbgx0;
+
+ for (rows = fontheight(p), dest = dest0; rows--; dest += bytes) {
+ u8 bits = *cdat++;
+ SPLASH_BGX(0);
+ fb_writel((tab_cfb16[bits >> 6] & eorx) ^ bgx, dest);
+ SPLASH_BGX(4);
+ fb_writel((tab_cfb16[bits >> 4 & 3] & eorx) ^ bgx, dest+4);
+ if (fontwidth(p) == 8) {
+ SPLASH_BGX(8);
+ fb_writel((tab_cfb16[bits >> 2 & 3] & eorx) ^ bgx, dest+8);
+ SPLASH_BGX(12);
+ fb_writel((tab_cfb16[bits & 3] & eorx) ^ bgx, dest+12);
+ }
+ splashbgx += splash_bytes;
+ }
+
+ dest0 += fontwidth(p)*2;
+ splashbgx0 += fontwidth(p) * 2;
+ }
+
+ break;
+ case 12:
+ case 16:
+ while (count--) {
+ c = scr_readw(s++) & p->charmask;
+ cdat = p->fontdata + (c * fontheight(p) << 1);
+
+ splashbgx = splashbgx0;
+
+ for (rows = fontheight(p), dest = dest0; rows--; dest += bytes) {
+ u8 bits = *cdat++;
+ SPLASH_BGX(0);
+ fb_writel((tab_cfb16[bits >> 6] & eorx) ^ bgx, dest);
+ SPLASH_BGX(4);
+ fb_writel((tab_cfb16[bits >> 4 & 3] & eorx) ^ bgx, dest+4);
+ SPLASH_BGX(8);
+ fb_writel((tab_cfb16[bits >> 2 & 3] & eorx) ^ bgx, dest+8);
+ SPLASH_BGX(12);
+ fb_writel((tab_cfb16[bits & 3] & eorx) ^ bgx, dest+12);
+ bits = *cdat++;
+ SPLASH_BGX(16);
+ fb_writel((tab_cfb16[bits >> 6] & eorx) ^ bgx, dest+16);
+ SPLASH_BGX(20);
+ fb_writel((tab_cfb16[bits >> 4 & 3] & eorx) ^ bgx, dest+20);
+ if (fontwidth(p) == 16) {
+ SPLASH_BGX(24);
+ fb_writel((tab_cfb16[bits >> 2 & 3] & eorx) ^ bgx, dest+24);
+ SPLASH_BGX(28);
+ fb_writel((tab_cfb16[bits & 3] & eorx) ^ bgx, dest+28);
+ }
+ splashbgx += splash_bytes;
+ }
+
+ dest0 += fontwidth(p)*2;
+ splashbgx0 += fontwidth(p) * 2;
+ }
+
+ break;
+ }
+}
+
+void fbcon_splash16_revc(struct display *p, int xx, int yy)
+{
+ u8 *dest;
+ int bytes = p->next_line, rows;
+
+ dest = p->screen_base + yy * fontheight(p) * bytes + xx * fontwidth(p)*2;
+ dest += splash_data.splash_text_yo * bytes + splash_data.splash_text_xo * 2;
+
+ for (rows = fontheight(p); rows--; dest += bytes) {
+ switch (fontwidth(p)) {
+ case 16:
+ fb_writel(fb_readl(dest+24) ^ 0xffffffff, dest+24);
+ fb_writel(fb_readl(dest+28) ^ 0xffffffff, dest+28);
+ /* FALL THROUGH */
+ case 12:
+ fb_writel(fb_readl(dest+16) ^ 0xffffffff, dest+16);
+ fb_writel(fb_readl(dest+20) ^ 0xffffffff, dest+20);
+ /* FALL THROUGH */
+ case 8:
+ fb_writel(fb_readl(dest+8) ^ 0xffffffff, dest+8);
+ fb_writel(fb_readl(dest+12) ^ 0xffffffff, dest+12);
+ /* FALL THROUGH */
+ case 4:
+ fb_writel(fb_readl(dest+0) ^ 0xffffffff, dest+0);
+ fb_writel(fb_readl(dest+4) ^ 0xffffffff, dest+4);
+ }
+ }
+}
+
+void fbcon_splash16_clear_margins(struct vc_data *conp, struct display *p,
+ int bottom_only)
+{
+ int bytes = p->next_line;
+ u32 bgx;
+
+ unsigned int right_start = conp->vc_cols*fontwidth(p);
+ unsigned int bottom_start = conp->vc_rows*fontheight(p);
+ unsigned int right_width, bottom_width;
+
+ int left_margin_width = splash_data.splash_text_xo;
+ int text_width = conp->vc_cols * fontwidth(p);
+ int right_margin_width = p->var.xres - text_width - left_margin_width;
+ int top_margin_height = splash_data.splash_text_yo;
+ int text_height = conp->vc_rows * fontheight(p);
+ int bottom_margin_height = p->var.yres - text_height - top_margin_height;
+
+ bgx = ((u16 *)p->dispsw_data)[attr_bgcol_ec(p, conp)];
+
+ if (bottom_only == -1) {
+ printk(KERN_DEBUG "Called with bottom-only\n");
+ splashfill(p->screen_base, linux_splash, p->var.xres, p->var.yres, bytes, splash_bytes);
+ return;
+ }
+
+ if (!bottom_only && (right_width = p->var.xres-right_start)) {
+ /* left margin */
+ splashfill(p->screen_base + top_margin_height * bytes,
+ linux_splash + top_margin_height *
+ splash_bytes, left_margin_width,
+ text_height, bytes, splash_bytes);
+
+ /* right margin */
+ splashfill(p->screen_base + left_margin_width*2 + text_width*2 +
+ top_margin_height * bytes, linux_splash +
+ left_margin_width*2 + text_width*2 + top_margin_height *
+ splash_bytes, right_margin_width, text_height,
+ bytes, splash_bytes);
+ }
+
+ if ((bottom_width = p->var.yres-bottom_start))
+ /* bottom margin */
+ splashfill(p->screen_base + (top_margin_height + text_height) *
+ bytes, linux_splash + (top_margin_height +
+ text_height) * splash_bytes, p->var.xres,
+ bottom_margin_height, bytes, splash_bytes);
+
+ /* top margin */
+ splashfill(p->screen_base, linux_splash,
+ p->var.xres, top_margin_height,
+ bytes, splash_bytes);
+
+ /* leave function if work is done */
+ return;
+}
+
+
+ /*
+ * `switch' for the low level operations
+ */
+
+struct display_switch fbcon_splash16 = {
+ bmove: fbcon_splash16_bmove,
+ clear: fbcon_splash16_clear,
+ putc: fbcon_splash16_putc,
+ putcs: fbcon_splash16_putcs,
+ revc: fbcon_splash16_revc,
+ clear_margins: fbcon_splash16_clear_margins,
+ fontwidthmask: FONTWIDTH(4)|FONTWIDTH(8)|FONTWIDTH(12)|FONTWIDTH(16)
+};
+
+
+#ifdef MODULE
+MODULE_LICENSE("GPL");
+
+int init_module(void)
+{
+ return 0;
+}
+
+void cleanup_module(void)
+{}
+#endif /* MODULE */
+
+
+ /*
+ * Visible symbols for modules
+ */
+
+EXPORT_SYMBOL(fbcon_splash16);
+EXPORT_SYMBOL(fbcon_splash16_bmove);
+EXPORT_SYMBOL(fbcon_splash16_clear);
+EXPORT_SYMBOL(fbcon_splash16_putc);
+EXPORT_SYMBOL(fbcon_splash16_putcs);
+EXPORT_SYMBOL(fbcon_splash16_revc);
+EXPORT_SYMBOL(fbcon_splash16_clear_margins);
diff -urN linux-2.4.24.org/drivers/video/fbcon-splash.c linux-2.4.24/drivers/video/fbcon-splash.c
--- linux-2.4.24.org/drivers/video/fbcon-splash.c 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.4.24/drivers/video/fbcon-splash.c 2004-01-19 21:03:48.216680056 +0100
@@ -0,0 +1,848 @@
+/*
+ * linux/drivers/video/fbcon-splash.c - splash screen handling functions.
+ *
+ * (w) 2001-2003 by Volker Poplawski, <volker@suse.de>
+ * Stefan Reinauer, <stepan@suse.de>
+ * Steffen Winterfeldt, <snwint@suse.de>
+ *
+ * Ideas & SuSE screen work by Ken Wimer, <wimer@suse.de>
+ */
+
+#include <linux/version.h>
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/fb.h>
+#include <linux/vt_kern.h>
+#include <linux/vmalloc.h>
+
+#include <asm/irq.h>
+#include <asm/system.h>
+
+#include <video/fbcon.h>
+#include <video/font.h>
+#include <video/fbcon-cfb16.h> /* for fbcon_cfb16 */
+
+#include "fbcon-splash.h"
+#include "fbcon-jpegdec.h"
+
+#define SPLASH_VERSION "3.0.7-2003/03/10"
+
+#ifdef CONFIG_BLK_DEV_INITRD
+unsigned char signature[] = "BOOTSPL1SPL2SPL3";
+#endif
+
+/* from drivers/char/console.c */
+extern void con_remap_def_color(int currcons, int new_color);
+
+/* from drivers/video/fbcon-splash16.c */
+extern void splashfill(u8 *dest, u8 *src, int width, int height,
+ int dest_linesize, int src_linesize);
+
+/* internal control states and data pointers */
+struct splash_data splash_data;
+
+unsigned char *linux_splash; /* decoded picture */
+int linux_splash_size = 0;
+
+static struct jpeg_decdata *decdata = 0; /* private decoder data */
+
+int splash_bytes; /* bytes per line in linux_splash */
+int splash_shown = 0; /* is the splash onscreen? */
+int splash_usesilent = 0; /* shall we display the silentjpeg */
+int splash_default = 0xf01;
+
+static int splash_status(struct display *p);
+static int splash_recolor(struct display *p);
+static int splash_check_jpeg(unsigned char *jpeg, int width, int height, int depth);
+
+extern struct display_switch fbcon_splash16;
+
+int __init splash_init(char *options)
+{
+ if(!strncmp("silent",options,6)) {
+ printk(KERN_INFO "bootsplash: silent mode.\n");
+ splash_usesilent = 1;
+ /* skip "silent," */
+ if (strlen(options)==6)
+ return 0;
+ options+=7;
+ }
+ if(!strncmp("verbose",options,7)) {
+ printk(KERN_INFO "bootsplash: verbose mode.\n");
+ splash_usesilent = 0;
+ return 0;
+ }
+
+ splash_default = simple_strtoul(options, NULL, 0);
+
+ return 0;
+}
+
+__setup("splash=", splash_init);
+
+
+static int splash_hasinter(unsigned char *buf, int num)
+{
+ unsigned char *bufend = buf + num * 12;
+ while(buf < bufend) {
+ if (buf[1] > 127) /* inter? */
+ return 1;
+ buf += buf[3] > 127 ? 24 : 12; /* blend? */
+ }
+ return 0;
+}
+
+static int boxextract(unsigned char *buf, unsigned short *dp, unsigned char *cols, int *blendp)
+{
+ dp[0] = buf[0] | buf[1] << 8;
+ dp[1] = buf[2] | buf[3] << 8;
+ dp[2] = buf[4] | buf[5] << 8;
+ dp[3] = buf[6] | buf[7] << 8;
+ *(unsigned int *)(cols + 0) =
+ *(unsigned int *)(cols + 4) =
+ *(unsigned int *)(cols + 8) =
+ *(unsigned int *)(cols + 12) = *(unsigned int *)(buf + 8);
+ if (dp[1] > 32767) {
+ dp[1] = ~dp[1];
+ *(unsigned int *)(cols + 4) = *(unsigned int *)(buf + 12);
+ *(unsigned int *)(cols + 8) = *(unsigned int *)(buf + 16);
+ *(unsigned int *)(cols + 12) = *(unsigned int *)(buf + 20);
+ *blendp = 1;
+ return 24;
+ }
+ return 12;
+}
+
+static void boxit(unsigned char *pic, int bytes, unsigned char *buf, int num, int percent, int overpaint)
+{
+ int x, y, i, p, doblend, r, g, b, a, add;
+ unsigned short data1[4];
+ unsigned char cols1[16];
+ unsigned short data2[4];
+ unsigned char cols2[16];
+ unsigned char *bufend;
+ unsigned short *picp;
+
+ if (num == 0)
+ return;
+ bufend = buf + num * 12;
+ while(buf < bufend) {
+ doblend = 0;
+ buf += boxextract(buf, data1, cols1, &doblend);
+ if (data1[0] > 32767)
+ buf += boxextract(buf, data2, cols2, &doblend);
+ if (data1[2] > 32767) {
+ if (overpaint)
+ continue;
+ data1[2] = ~data1[2];
+ }
+ if (data1[3] > 32767) {
+ if (percent == 65536)
+ continue;
+ data1[3] = ~data1[3];
+ }
+ if (data1[0] > 32767) {
+ data1[0] = ~data1[0];
+ for (i = 0; i < 4; i++)
+ data1[i] = (data1[i] * (65536 - percent) + data2[i] * percent) >> 16;
+ for (i = 0; i < 16; i++)
+ cols1[i] = (cols1[i] * (65536 - percent) + cols2[i] * percent) >> 16;
+ }
+ *(unsigned int *)cols2 = *(unsigned int *)cols1;
+ a = cols2[3];
+ if (a == 0 && !doblend)
+ continue;
+ for (y = data1[1]; y <= data1[3]; y++) {
+ if (doblend) {
+ if ((p = data1[3] - data1[1]) != 0)
+ p = ((y - data1[1]) << 16) / p;
+ for (i = 0; i < 8; i++)
+ cols2[i + 8] = (cols1[i] * (65536 - p) + cols1[i + 8] * p) >> 16;
+ }
+ add = (data1[0] & 1);
+ add ^= (add ^ y) & 1 ? 1 : 3; /* 2x2 ordered dithering */
+ picp = (unsigned short *)(pic + data1[0] * 2 + y * bytes);
+ for (x = data1[0]; x <= data1[2]; x++) {
+ if (doblend) {
+ if ((p = data1[2] - data1[0]) != 0)
+ p = ((x - data1[0]) << 16) / p;
+ for (i = 0; i < 4; i++)
+ cols2[i] = (cols2[i + 8] * (65536 - p) + cols2[i + 12] * p) >> 16;
+ a = cols2[3];
+ }
+ r = cols2[0];
+ g = cols2[1];
+ b = cols2[2];
+ if (a != 255) {
+ i = *picp;
+ r = ((i >> 8 & 0xf8) * (255 - a) + r * a) / 255;
+ g = ((i >> 3 & 0xfc) * (255 - a) + g * a) / 255;
+ b = ((i << 3 & 0xf8) * (255 - a) + b * a) / 255;
+ }
+ #define CLAMP(x) ((x) >= 256 ? 255 : (x))
+ i = ((CLAMP(r + add*2+1) & 0xf8) << 8) |
+ ((CLAMP(g + add ) & 0xfc) << 3) |
+ ((CLAMP(b + add*2+1) ) >> 3);
+ *picp++ = i;
+ add ^= 3;
+ }
+ }
+ }
+}
+
+static int splash_check_jpeg(unsigned char *jpeg, int width, int height, int depth)
+{
+ int size, err;
+ unsigned char *mem;
+
+ size = ((width + 15) & ~15) * ((height + 15) & ~15) * (depth >> 3);
+ mem = vmalloc(size);
+ if (!mem) {
+ printk(KERN_INFO "No memory for decoded picture!\n");
+ return -1;
+ }
+ if (!decdata)
+ decdata = vmalloc(sizeof(*decdata));
+ if ((err = jpeg_decode(jpeg, mem, ((width + 15) & ~15), ((height + 15) & ~15), depth, decdata)))
+ printk(KERN_INFO "error %d while decompressing picture.\n",err);
+ vfree(mem);
+ return err ? -1 : 0;
+}
+
+static void splash_free(struct display * p)
+{
+ if (!p->splash_data)
+ return;
+ if (p->splash_data->oldscreen_base)
+ p->screen_base = p->splash_data->oldscreen_base;
+ if (p->splash_data->olddispsw)
+ p->dispsw = p->splash_data->olddispsw;
+ if (p->splash_data->splash_silentjpeg)
+ vfree(p->splash_data->splash_sboxes);
+ vfree(p->splash_data);
+ p->splash_data = 0;
+}
+
+static int splash_mkpenguin(struct splash_data *data, int pxo, int pyo, int pwi, int phe, int pr, int pg, int pb)
+{
+ unsigned char *buf;
+ int i;
+
+ if (pwi ==0 || phe == 0)
+ return 0;
+ buf = (unsigned char *)data + sizeof(*data);
+ pwi += pxo - 1;
+ phe += pyo - 1;
+ *buf++ = pxo;
+ *buf++ = pxo >> 8;
+ *buf++ = pyo;
+ *buf++ = pyo >> 8;
+ *buf++ = pwi;
+ *buf++ = pwi >> 8;
+ *buf++ = phe;
+ *buf++ = phe >> 8;
+ *buf++ = pr;
+ *buf++ = pg;
+ *buf++ = pb;
+ *buf++ = 0;
+ for (i = 0; i < 12; i++, buf++)
+ *buf = buf[-12];
+ buf[-24] ^= 0xff;
+ buf[-23] ^= 0xff;
+ buf[-1] = 0xff;
+ return 2;
+}
+
+int splash_getraw(unsigned char *start, unsigned char *end)
+{
+ unsigned char *ndata;
+ int found = 0;
+ int splash_size = 0;
+ void *splash_start = 0;
+ int unit = 0;
+ int width = 0, height = 0;
+ int silentsize;
+ int boxcount = 0;
+ int sboxcount = 0;
+ int palcnt = 0;
+ struct display *p;
+
+ printk(KERN_INFO "Looking for splash picture...");
+
+ p = &fb_display[0];
+ silentsize = 0;
+
+ for (ndata = start; ndata < end; ndata++) {
+ if (*((unsigned int *)ndata) != *((unsigned int *)signature))
+ continue;
+ if (*((unsigned int *)(ndata+4))==*((unsigned int *)(signature+4))) {
+ printk(".");
+ unit = 0;
+ p = &fb_display[0];
+ width = p->var.xres;
+ height = p->var.yres;
+
+ splash_size = ndata[16] + (ndata[17] << 8) + (ndata[18] << 16) + (ndata[19] << 24);
+ if (ndata + 20 + splash_size > end) {
+ printk(" found, but truncated!\n");
+ return -1;
+ }
+ if (!jpeg_check_size(ndata + 20, width, height)) {
+ ndata += 20 - 1 + splash_size;
+ continue;
+ }
+ if (splash_check_jpeg(ndata + 20, width, height, p->var.bits_per_pixel))
+ return -1;
+ if (p->splash_data)
+ splash_free(p);
+ p->splash_data = vmalloc(sizeof(*p->splash_data) + splash_size + 24);
+ if (!p->splash_data)
+ break;
+
+ p->splash_data->oldscreen_base = 0;
+ p->splash_data->olddispsw = 0;
+ p->splash_data->splash_silentjpeg = 0;
+
+ p->splash_data->splash_text_xo = ndata[ 8] + (ndata[ 9] << 8);
+ p->splash_data->splash_text_yo = ndata[10] + (ndata[11] << 8);
+ p->splash_data->splash_text_wi = ndata[12] + (ndata[13] << 8);
+ p->splash_data->splash_text_he = ndata[14] + (ndata[15] << 8);
+ /* use 8x16 font... */
+ p->splash_data->splash_text_xo *= 8;
+ p->splash_data->splash_text_wi *= 8;
+ p->splash_data->splash_text_yo *= 16;
+ p->splash_data->splash_text_he *= 16;
+ p->splash_data->splash_color = (splash_default >> 8) & 0x0f;
+ p->splash_data->splash_fg_color = (splash_default >> 4) & 0x0f;
+ p->splash_data->splash_state = splash_default & 1;
+ p->splash_data->splash_percent = 0;
+ p->splash_data->splash_overpaintok = 0;
+ boxcount = splash_mkpenguin(p->splash_data, p->splash_data->splash_text_xo + 10, p->splash_data->splash_text_yo + 10, p->splash_data->splash_text_wi - 20, p->splash_data->splash_text_he - 20, 0xf0, 0xf0, 0xf0);
+ splash_start = ndata + 20;
+ found = 1;
+ break;
+ }
+ if (*((unsigned int *)(ndata + 4)) == *((unsigned int *)(signature+8))) {
+ printk(".");
+ unit = ndata[8];
+ if (unit >= MAX_NR_CONSOLES)
+ continue;
+ if (unit)
+ vc_allocate(unit);
+ p = &fb_display[unit];
+ width = fb_display[unit].var.xres;
+ height = fb_display[unit].var.yres;
+ splash_size = ndata[12] + (ndata[13] << 8) + (ndata[14] << 16) + (ndata[15] << 24);
+ if (splash_size == -1) {
+ printk(" found, updating values.\n");
+ if (p->splash_data) {
+ if (ndata[9] != 255)
+ p->splash_data->splash_state = ndata[9];
+ if (ndata[10] != 255)
+ p->splash_data->splash_fg_color = ndata[10];
+ if (ndata[11] != 255)
+ p->splash_data->splash_color = ndata[11];
+ }
+ return unit;
+ }
+ if (splash_size == 0) {
+ printk(" found, freeing memory.\n");
+ if (p->splash_data)
+ splash_free(p);
+ return unit;
+ }
+ if (ndata + 35 + splash_size > end) {
+ printk(" found, but truncated!\n");
+ return -1;
+ }
+ if (!jpeg_check_size(ndata + 35, width, height)) {
+ ndata += 35 - 1 + splash_size;
+ continue;
+ }
+ if (splash_check_jpeg(ndata + 35, width, height, p->var.bits_per_pixel))
+ return -1;
+ if (p->splash_data)
+ splash_free(p);
+ p->splash_data = vmalloc(sizeof(*p->splash_data) + splash_size + 24);
+ if (!p->splash_data)
+ break;
+
+ p->splash_data->oldscreen_base = 0;
+ p->splash_data->olddispsw = 0;
+ p->splash_data->splash_silentjpeg = 0;
+
+ p->splash_data->splash_state = ndata[9];
+ p->splash_data->splash_fg_color = ndata[10];
+ p->splash_data->splash_color = ndata[11];
+ p->splash_data->splash_text_xo = ndata[16] + (ndata[17] << 8);
+ p->splash_data->splash_text_yo = ndata[18] + (ndata[19] << 8);
+ p->splash_data->splash_text_wi = ndata[20] + (ndata[21] << 8);
+ p->splash_data->splash_text_he = ndata[22] + (ndata[23] << 8);
+ p->splash_data->splash_percent = 0;
+ p->splash_data->splash_overpaintok = 0;
+ boxcount = splash_mkpenguin(p->splash_data, ndata[24] + (ndata[25] << 8), ndata[26] + (ndata[27] << 8), ndata[28] + (ndata[29] << 8), ndata[30] + (ndata[31] << 8), ndata[32], ndata[33], ndata[34]);
+ splash_start = ndata + 35;
+ found = 2;
+ break;
+ }
+ if (*((unsigned int *)(ndata + 4)) == *((unsigned int *)(signature+12))) {
+ printk(".");
+ unit = ndata[8];
+ if (unit >= MAX_NR_CONSOLES)
+ continue;
+ if (unit)
+ vc_allocate(unit);
+ p = &fb_display[unit];
+ width = p->var.xres;
+ height = p->var.yres;
+ splash_size = ndata[12] + (ndata[13] << 8) + (ndata[14] << 16) + (ndata[15] << 24);
+ if (splash_size == -1) {
+ printk(" found, updating values.\n");
+ if (p->splash_data) {
+ if (ndata[9] != 255)
+ p->splash_data->splash_state = ndata[9];
+ if (ndata[10] != 255)
+ p->splash_data->splash_fg_color = ndata[10];
+ if (ndata[11] != 255)
+ p->splash_data->splash_color = ndata[11];
+ }
+ return unit;
+ }
+ if (splash_size == 0) {
+ printk(" found, freeing memory.\n");
+ if (p->splash_data)
+ splash_free(p);
+ return unit;
+ }
+ boxcount = ndata[24] + (ndata[25] << 8);
+ palcnt = ndata[37] * 3;
+ if (ndata + 38 + splash_size > end) {
+ printk(" found, but truncated!\n");
+ return -1;
+ }
+ if (!jpeg_check_size(ndata + 38 + boxcount * 12 + palcnt, width, height)) {
+ ndata += 38 - 1 + splash_size;
+ continue;
+ }
+ if (splash_check_jpeg(ndata + 38 + boxcount * 12 + palcnt, width, height, p->var.bits_per_pixel))
+ return -1;
+ silentsize = ndata[28] + (ndata[29] << 8) + (ndata[30] << 16) + (ndata[31] << 24);
+ if (silentsize)
+ printk(" silenjpeg size %d bytes,", silentsize);
+ if (silentsize >= splash_size) {
+ printk(" bigger than splashsize!\n");
+ return -1;
+ }
+ splash_size -= silentsize;
+ if (!splash_usesilent || !p->fb_info->fbops->fb_get_fix ) {
+ silentsize = 0;
+ } else {
+ struct fb_fix_screeninfo fix;
+ p->fb_info->fbops->fb_get_fix(&fix, unit, 0);
+ if (height * 2 * p->next_line > fix.smem_len) {
+ printk(" does not fit into framebuffer.\n");
+ silentsize = 0;
+ }
+ }
+
+ sboxcount = ndata[32] + (ndata[33] << 8);
+ if (silentsize) {
+ char *simage=ndata + 38 + splash_size + 12 * sboxcount;
+ if (!jpeg_check_size(simage, width, height) ||
+ splash_check_jpeg(simage, width, height, p->var.bits_per_pixel)) {
+ printk(" error in silent jpeg.\n");
+ silentsize = 0;
+ }
+ }
+ if (p->splash_data)
+ splash_free(p);
+ p->splash_data = vmalloc(sizeof(*p->splash_data) + splash_size);
+ if (!p->splash_data)
+ break;
+ p->splash_data->oldscreen_base = 0;
+ p->splash_data->olddispsw = 0;
+ p->splash_data->splash_silentjpeg = 0;
+ if (silentsize) {
+ p->splash_data->splash_silentjpeg = vmalloc(silentsize);
+ if (p->splash_data->splash_silentjpeg) {
+ memcpy(p->splash_data->splash_silentjpeg, ndata + 38 + splash_size, silentsize);
+ p->splash_data->splash_sboxes = p->splash_data->splash_silentjpeg;
+ p->splash_data->splash_silentjpeg += 12 * sboxcount;
+ p->splash_data->splash_sboxcount = sboxcount;
+ }
+ }
+ p->splash_data->splash_state = ndata[9];
+ p->splash_data->splash_fg_color = ndata[10];
+ p->splash_data->splash_color = ndata[11];
+ p->splash_data->splash_overpaintok = ndata[36];
+ p->splash_data->splash_text_xo = ndata[16] + (ndata[17] << 8);
+ p->splash_data->splash_text_yo = ndata[18] + (ndata[19] << 8);
+ p->splash_data->splash_text_wi = ndata[20] + (ndata[21] << 8);
+ p->splash_data->splash_text_he = ndata[22] + (ndata[23] << 8);
+ p->splash_data->splash_percent = ndata[34] + (ndata[35] << 8);
+ p->splash_data->splash_percent += p->splash_data->splash_percent > 32767;
+ splash_start = ndata + 38;
+ found = 3;
+ break;
+ }
+ }
+
+ if (!found) {
+ printk(" no good signature found.\n");
+ return -1;
+ }
+ if (p->splash_data->splash_text_xo + p->splash_data->splash_text_wi > width || p->splash_data->splash_text_yo + p->splash_data->splash_text_he > height) {
+ splash_free(p);
+ p->splash_data = 0;
+ printk(" found, but has oversized text area!\n");
+ return -1;
+ }
+ if (p->dispsw->setup != fbcon_cfb16.setup) {
+ splash_free(p);
+ p->splash_data = 0;
+ printk(" found, but framebuffer can't handle it!\n");
+ return -1;
+ }
+ printk(" found (%dx%d, %d bytes, v%d).\n", width, height, splash_size, found);
+
+ if (found==1) {
+ printk(KERN_WARNING "bootsplash: Using deprecated v1 header. Updating your splash utility recommended.\n");
+ printk(KERN_INFO "bootsplash: Find the latest version at ftp.suse.com/pub/people/stepan/bootsplash/\n");
+ }
+
+ /* copy data so that initrd memory can be freed. */
+ memcpy((char *)p->splash_data + sizeof(*p->splash_data) + (found < 3 ? boxcount * 12 : 0), splash_start, splash_size);
+ p->splash_data->splash_boxcount = boxcount;
+ p->splash_data->splash_boxes = (unsigned char *)p->splash_data + sizeof(*p->splash_data);
+ p->splash_data->splash_jpeg = (unsigned char *)p->splash_data + sizeof(*p->splash_data) + boxcount * 12 + palcnt;
+ p->splash_data->splash_palette = (unsigned char *)p->splash_data + sizeof(*p->splash_data) + boxcount * 12;
+ p->splash_data->splash_palcnt = palcnt / 3;
+ p->splash_data->splash_dosilent = p->splash_data->splash_silentjpeg != 0;
+ return unit;
+}
+
+int splash_verbose(void)
+{
+ struct display *p;
+
+ p = &fb_display[0];
+ if (!p || !p->splash_data || !p->splash_data->splash_state || !p->conp)
+ return 0;
+ if (fg_console != p->conp->vc_num)
+ return 0;
+ if (!p->splash_data->splash_silentjpeg || !p->splash_data->splash_dosilent)
+ return 0;
+ if (!p->splash_data->oldscreen_base)
+ return 0;
+
+ p->splash_data->splash_dosilent = 0;
+
+ splashfill(p->splash_data->oldscreen_base, p->screen_base, p->var.xres, p->var.yres, p->next_line, p->next_line);
+ p->screen_base = p->splash_data->oldscreen_base;
+
+ return 1;
+}
+
+static void splash_off(struct display *p)
+{
+ if (p->splash_data && p->splash_data->oldscreen_base)
+ p->screen_base = p->splash_data->oldscreen_base;
+ if (p->splash_data && p->splash_data->olddispsw)
+ p->dispsw = p->splash_data->olddispsw;
+ splash_shown = 0;
+}
+
+int splash_prepare(struct display *p)
+{
+ int err;
+ int width, height, depth, size, sbytes;
+
+ if (!p->splash_data || !p->splash_data->splash_state) {
+ if (linux_splash)
+ vfree(linux_splash);
+ if (decdata)
+ vfree(decdata);
+ linux_splash = 0;
+ decdata = 0;
+ linux_splash_size = 0;
+ splash_off(p);
+ return -1;
+ }
+
+ width = p->var.xres;
+ height = p->var.yres;
+ depth = p->var.bits_per_pixel;
+ if (depth != 16) { /* Other targets might need fixing */
+ splash_off(p);
+ return -2;
+ }
+
+ sbytes = ((width + 15) & ~15) * (depth >> 3);
+ size = sbytes * ((height + 15) & ~15);
+ if (size != linux_splash_size) {
+ if (linux_splash)
+ vfree(linux_splash);
+ linux_splash_size = 0;
+ linux_splash = 0;
+ splash_off(p);
+ }
+ if (!linux_splash)
+ linux_splash = vmalloc(size);
+
+ if (!linux_splash) {
+ linux_splash_size = 0;
+ printk(KERN_INFO "Not enough memory for splash screen.\n");
+ splash_off(p);
+ return -3;
+ }
+
+ if (!decdata)
+ decdata = vmalloc(sizeof(*decdata));
+
+ if (!p->splash_data->oldscreen_base)
+ p->splash_data->oldscreen_base = p->screen_base;
+
+ if (p->splash_data->splash_silentjpeg && p->splash_data->splash_dosilent) {
+ printk(KERN_INFO "Got silent jpeg.\n");
+ /* fill area after framebuffer with other jpeg */
+ if ((err = jpeg_decode(p->splash_data->splash_silentjpeg, linux_splash,
+ ((width + 15) & ~15), ((height + 15) & ~15), depth, decdata))) {
+ printk(KERN_INFO "Error %d while decompressing silent jpeg.\n", err);
+ p->screen_base = p->splash_data->oldscreen_base;
+ p->splash_data->splash_dosilent = 0;
+ } else {
+ if (p->splash_data->splash_sboxcount)
+ boxit(linux_splash, sbytes, p->splash_data->splash_sboxes,
+ p->splash_data->splash_sboxcount, p->splash_data->splash_percent, 0);
+
+ splashfill(p->screen_base, linux_splash, p->var.xres, p->var.yres, p->next_line, sbytes);
+ p->screen_base = p->splash_data->oldscreen_base + p->next_line * p->var.yres;
+ }
+ } else
+ p->screen_base = p->splash_data->oldscreen_base;
+
+ if ((err = jpeg_decode(p->splash_data->splash_jpeg, linux_splash,
+ ((width + 15) & ~15), ((height + 15) & ~15), depth, decdata))) {
+ printk(KERN_INFO "Error %d while decompressing splash screen.\n", err);
+ vfree(linux_splash);
+ linux_splash = 0;
+ linux_splash_size = 0;
+ splash_off(p);
+ return -4;
+ }
+ linux_splash_size = size;
+ splash_bytes = sbytes;
+ if (p->splash_data->splash_boxcount)
+ boxit(linux_splash, sbytes, p->splash_data->splash_boxes, p->splash_data->splash_boxcount, p->splash_data->splash_percent, 0);
+ splash_data = *p->splash_data;
+ splash_shown = p->splash_data->splash_state;
+ if (splash_shown) {
+ if (p->dispsw != &fbcon_splash16)
+ p->splash_data->olddispsw = p->dispsw;
+ p->dispsw = &fbcon_splash16;
+ } else
+ splash_off(p);
+ return 0;
+}
+
+
+#ifdef CONFIG_PROC_FS
+#include <linux/proc_fs.h>
+
+struct proc_dir_entry *proc_splash;
+int splash_read_proc(char *buffer, char **start, off_t offset, int size,
+ int *eof, void *data);
+int splash_write_proc(struct file *file, const char *buffer,
+ unsigned long count, void *data);
+
+int splash_read_proc(char *buffer, char **start, off_t offset, int size,
+ int *eof, void *data)
+{
+ int len = 0;
+
+ off_t begin = 0;
+ struct display *p = &fb_display[0];
+
+ int color = p->splash_data ? p->splash_data->splash_color << 4 |
+ p->splash_data->splash_fg_color : splash_default >> 4;
+ int status = p->splash_data ? p->splash_data->splash_state & 1 : 0;
+ len += sprintf(buffer + len, "Splash screen v%s (0x%02x, %dx%d%s): %s\n",
+ SPLASH_VERSION, color, p->var.xres, p->var.yres,
+ (p->splash_data ? p->splash_data->splash_dosilent : 0)? ", silent" : "",
+ status ? "on" : "off");
+ if (offset >= begin + len)
+ return 0;
+
+ *start = buffer + (begin - offset);
+
+ return (size < begin + len - offset ? size : begin + len - offset);
+}
+
+static int splash_recolor(struct display *p)
+{
+ if (!p->splash_data)
+ return -1;
+ if (!p->splash_data->splash_state)
+ return 0;
+ con_remap_def_color(p->conp->vc_num, p->splash_data->splash_color << 4 | p->splash_data->splash_fg_color);
+ if (fg_console == p->conp->vc_num) {
+ splash_data = *p->splash_data;
+ update_region(fg_console,
+ p->conp->vc_origin +
+ p->conp->vc_size_row *
+ p->conp->vc_top,
+ p->conp->vc_size_row *
+ (p->conp->vc_bottom -
+ p->conp->vc_top) / 2);
+ }
+ return 0;
+}
+
+static int splash_status(struct display *p)
+{
+ printk(KERN_INFO "Splash status on console %d changed to %s\n", p->conp->vc_num, p->splash_data && p->splash_data->splash_state ? "on" : "off");
+
+ if (fg_console == p->conp->vc_num)
+ splash_prepare(p);
+ if (p->splash_data && p->splash_data->splash_state) {
+ con_remap_def_color(p->conp->vc_num, p->splash_data->splash_color << 4 | p->splash_data->splash_fg_color);
+ /* resize_con also calls con_switch which resets yscroll */
+ vc_resize_con(p->splash_data->splash_text_he / fontheight(p),
+ p->splash_data->splash_text_wi / fontwidth(p),
+ p->conp->vc_num);
+ if (fg_console == p->conp->vc_num) {
+ update_region(fg_console,
+ p->conp->vc_origin +
+ p->conp->vc_size_row *
+ p->conp->vc_top,
+ p->conp->vc_size_row *
+ (p->conp->vc_bottom -
+ p->conp->vc_top) / 2);
+ fbcon_splash16.clear_margins(p->conp, p, 0);
+ }
+ } else {
+ /* Switch bootsplash off */
+ con_remap_def_color(p->conp->vc_num, 0x07);
+ vc_resize_con(p->var.yres / fontheight(p),
+ p->var.xres / fontwidth(p),
+ p->conp->vc_num);
+ }
+ return 0;
+}
+
+int splash_write_proc(struct file *file, const char *buffer,
+ unsigned long count, void *data)
+{
+ int new, unit;
+ struct display *p;
+
+ if (!buffer || !splash_default)
+ return count;
+
+ if (!strncmp(buffer, "show", 4) || !strncmp(buffer, "hide", 4)) {
+ int pe;
+
+ p = &fb_display[0];
+ if (buffer[4] == ' ' && buffer[5] == 'p')
+ pe = 0;
+ else if (buffer[4] == '\n')
+ pe = 65535;
+ else
+ pe = simple_strtoul(buffer + 5, NULL, 0);
+ if (pe < 0)
+ pe = 0;
+ if (pe > 65535)
+ pe = 65535;
+ if (*buffer == 'h')
+ pe = 65535 - pe;
+ pe += pe > 32767;
+ if (p->splash_data && p->splash_data->splash_percent != pe) {
+ p->splash_data->splash_percent = pe;
+ if (fg_console != p->conp->vc_num || !p->splash_data->splash_state)
+ return count;
+ if (!p->splash_data->splash_overpaintok || p->splash_data->splash_percent == 65536) {
+ if (splash_hasinter(p->splash_data->splash_boxes, p->splash_data->splash_boxcount))
+ splash_status(p);
+ else
+ splash_prepare(p);
+ } else {
+ if (p->splash_data->splash_silentjpeg && p->splash_data->splash_dosilent && p->splash_data->oldscreen_base)
+ boxit(p->splash_data->oldscreen_base, p->next_line, p->splash_data->splash_sboxes, p->splash_data->splash_sboxcount, p->splash_data->splash_percent, 1);
+ boxit(p->screen_base, p->next_line, p->splash_data->splash_boxes, p->splash_data->splash_boxcount, p->splash_data->splash_percent, 1);
+ }
+ }
+ return count;
+ }
+ if (!strncmp(buffer,"silent\n",7) || !strncmp(buffer,"verbose\n",8)) {
+ p = &fb_display[0];
+ if (p->splash_data && p->splash_data->splash_silentjpeg) {
+ if (p->splash_data->splash_dosilent != (buffer[0] == 's')) {
+ p->splash_data->splash_dosilent = buffer[0] == 's';
+ splash_status(p);
+ }
+ }
+ return count;
+ }
+ if (!strncmp(buffer,"freesilent\n",11)) {
+ p = &fb_display[0];
+ if (p->splash_data && p->splash_data->splash_silentjpeg) {
+ printk(KERN_INFO "bootsplash: freeing silent jpeg\n");
+ p->splash_data->splash_silentjpeg = 0;
+ vfree(p->splash_data->splash_sboxes);
+ p->splash_data->splash_sboxes = 0;
+ p->splash_data->splash_sboxcount = 0;
+ if (p->splash_data->splash_dosilent)
+ splash_status(p);
+ p->splash_data->splash_dosilent = 0;
+ }
+ return count;
+ }
+
+ if (!strncmp(buffer, signature, 7)) {
+ unit = splash_getraw((unsigned char *)buffer, (unsigned char *)buffer + count);
+ if (unit >= 0) {
+ p = &fb_display[unit];
+ splash_status(p);
+ }
+ return count;
+ }
+ p = &fb_display[0];
+ if (!p->splash_data)
+ return count;
+ if (buffer[0] == 't') {
+ p->splash_data->splash_state ^= 1;
+ splash_status(p);
+ return count;
+ }
+ new = simple_strtoul(buffer, NULL, 0);
+ if (new > 1) {
+ /* expert user */
+ p->splash_data->splash_color = new >> 8 & 0xff;
+ p->splash_data->splash_fg_color = new >> 4 & 0x0f;
+ }
+ if ((new & 1) == p->splash_data->splash_state)
+ splash_recolor(p);
+ else {
+ p->splash_data->splash_state = new & 1;
+ splash_status(p);
+ }
+ return count;
+}
+
+int splash_proc_register(void)
+{
+ if ((proc_splash = create_proc_entry("splash", 0, 0))) {
+ proc_splash->read_proc = splash_read_proc;
+ proc_splash->write_proc = splash_write_proc;
+ return 0;
+ }
+ return 1;
+}
+
+int splash_proc_unregister(void)
+{
+ if (proc_splash)
+ remove_proc_entry("splash", 0);
+ return 0;
+}
+#endif
diff -urN linux-2.4.24.org/drivers/video/fbcon-splash.h linux-2.4.24/drivers/video/fbcon-splash.h
--- linux-2.4.24.org/drivers/video/fbcon-splash.h 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.4.24/drivers/video/fbcon-splash.h 2004-01-19 21:03:48.218679640 +0100
@@ -0,0 +1,18 @@
+/*
+ * linux/drivers/video/splash.h - splash screen definition.
+ *
+ * (w) 2001-2003 by Volker Poplawski, <volker@suse.de>
+ * Stefan Reinauer, <stepan@suse.de>
+ *
+ *
+ * idea and SuSE screen work by Ken Wimer, <wimer@suse.de>
+ */
+
+extern int splash_getraw(unsigned char *, unsigned char *);
+extern int splash_prepare(struct display *);
+
+extern int splash_shown; /* is splash shown? */
+extern struct splash_data splash_data; /* image data, copied over
+ from display */
+extern unsigned char *linux_splash; /* decoded pic data */
+extern int splash_bytes; /* bytes per line */
diff -urN linux-2.4.24.org/drivers/video/Makefile linux-2.4.24/drivers/video/Makefile
--- linux-2.4.24.org/drivers/video/Makefile 2004-01-19 21:01:12.732012987 +0100
+++ linux-2.4.24/drivers/video/Makefile 2004-01-19 21:05:58.628528100 +0100
@@ -14,7 +14,7 @@
fbcon-vga.o fbcon-iplan2p2.o fbcon-iplan2p4.o \
fbcon-iplan2p8.o fbcon-vga-planes.o fbcon-cfb16.o \
fbcon-cfb2.o fbcon-cfb24.o fbcon-cfb32.o fbcon-cfb4.o \
- fbcon-cfb8.o fbcon-mac.o fbcon-mfb.o \
+ fbcon-cfb8.o fbcon-splash16.o fbcon-mac.o fbcon-mfb.o \
cyber2000fb.o sa1100fb.o fbcon-hga.o fbgen.o macmodes.o
# Each configuration option enables a list of files.
@@ -159,6 +159,10 @@
obj-$(CONFIG_FBCON_HGA) += fbcon-hga.o
obj-$(CONFIG_FBCON_STI) += fbcon-sti.o
+obj-$(CONFIG_FBCON_SPLASHSCREEN) += fbcon-splash.o
+obj-$(CONFIG_FBCON_SPLASHSCREEN) += fbcon-splash16.o
+obj-$(CONFIG_FBCON_SPLASHSCREEN) += fbcon-jpegdec.o
+
include $(TOPDIR)/Rules.make
clean:
diff -urN linux-2.4.24.org/include/video/fbcon.h linux-2.4.24/include/video/fbcon.h
--- linux-2.4.24.org/include/video/fbcon.h 2004-01-19 20:59:23.213788389 +0100
+++ linux-2.4.24/include/video/fbcon.h 2004-01-19 21:03:48.295663632 +0100
@@ -42,6 +42,35 @@
unsigned int fontwidthmask; /* 1 at (1 << (width - 1)) if width is supported */
};
+#ifdef CONFIG_FBCON_SPLASHSCREEN
+struct splash_data {
+ int splash_state; /* show splash? */
+ int splash_color; /* transparent color */
+ int splash_fg_color; /* foreground color */
+ int splash_width; /* width of image */
+ int splash_height; /* height of image */
+ int splash_text_xo; /* text area origin */
+ int splash_text_yo;
+ int splash_text_wi; /* text area size */
+ int splash_text_he;
+ int splash_showtext; /* silent/verbose mode */
+ int splash_boxcount;
+ int splash_percent;
+ int splash_overpaintok; /* is it ok to overpaint boxes */
+ int splash_palcnt;
+ struct display_switch *olddispsw; /* old dispsw, normally &fbcon_cfb16*/
+ char *oldscreen_base; /* pointer to top of virtual screen */
+ unsigned char *splash_boxes;
+ unsigned char *splash_jpeg; /* jpeg */
+ unsigned char *splash_palette; /* palette for 8-bit */
+
+ int splash_dosilent; /* show silent jpeg */
+ unsigned char *splash_silentjpeg;
+ unsigned char *splash_sboxes;
+ int splash_sboxcount;
+};
+#endif
+
extern struct display_switch fbcon_dummy;
/*
@@ -95,6 +124,10 @@
short yscroll; /* Hardware scrolling */
unsigned char fgshift, bgshift;
unsigned short charmask; /* 0xff or 0x1ff */
+
+#ifdef CONFIG_FBCON_SPLASHSCREEN
+ struct splash_data *splash_data;
+#endif
};
/* drivers/video/fbcon.c */
diff -urN linux-2.4.24.org/kernel/panic.c linux-2.4.24/kernel/panic.c
--- linux-2.4.24.org/kernel/panic.c 2004-01-19 20:58:34.218977671 +0100
+++ linux-2.4.24/kernel/panic.c 2004-01-19 21:03:48.336655108 +0100
@@ -83,6 +83,13 @@
* We can't use the "normal" timers since we just panicked..
*/
printk(KERN_EMERG "Rebooting in %d seconds..",panic_timeout);
+
+#ifdef CONFIG_FBCON_SPLASHSCREEN
+ {
+ extern int splash_verbose(void);
+ (void)splash_verbose();
+ }
+#endif
mdelay(panic_timeout*1000);
/*
* Should we run the reboot notifier. For the moment Im
@@ -103,6 +110,12 @@
disabled_wait(caller);
#endif
sti();
+#ifdef CONFIG_FBCON_SPLASHSCREEN
+ {
+ extern int splash_verbose(void);
+ (void)splash_verbose();
+ }
+#endif
for(;;) {
#if defined(CONFIG_X86) && defined(CONFIG_VT)
extern void panic_blink(void);
