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Subject[PATCH] more penguins
Hi,

Here's a patch against 2.4.5 so we can display a decent number of
penguins at boot time (wraps the display of the boot penguins when
they can't all fit on one line).

Chris.
--
yeohc@au1.ibm.com
IBM OzLabs Linux Development Group
Canberra, Australia

diff -urN linux-2.4.5/drivers/video/fbcon.c linux-2.4.5-logo/drivers/video/fbcon.c
--- linux-2.4.5/drivers/video/fbcon.c Thu Feb 22 14:25:28 2001
+++ linux-2.4.5-logo/drivers/video/fbcon.c Sun Jul 1 17:10:27 2001
@@ -608,8 +608,16 @@
/* Need to make room for the logo */
int cnt;
int step;
-
- logo_lines = (LOGO_H + fontheight(p) - 1) / fontheight(p);
+ int logo_rows;
+
+ /* Work out how many rows of logos will be displayed.
+ Leave at least two rows worth of logos at bottom to
+ display boot information */
+ logo_rows = (smp_num_cpus - 1) / (p->var.xres/(LOGO_W+8)) + 1;
+ if ((int)p->var.yres - logo_rows * (LOGO_H+8) < LOGO_H*2)
+ logo_rows = (p->var.yres - LOGO_H*2) / (LOGO_H+8);
+
+ logo_lines = ((LOGO_H+8)*logo_rows + fontheight(p) - 9) / fontheight(p);
q = (unsigned short *)(conp->vc_origin + conp->vc_size_row * old_rows);
step = logo_lines * old_cols;
for (r = q - logo_lines * old_cols; r < q; r++)
@@ -2055,6 +2063,7 @@
unsigned char *dst, *src;
int i, j, n, x1, y1, x;
int logo_depth, done = 0;
+ int yoff = 0, logo_count = 0;

/* Return if the frame buffer is not mapped */
if (!fb)
@@ -2115,8 +2124,8 @@
if (p->fb_info->fbops->fb_rasterimg)
p->fb_info->fbops->fb_rasterimg(p->fb_info, 1);

- for (x = 0; x < smp_num_cpus * (LOGO_W + 8) &&
- x < p->var.xres - (LOGO_W + 8); x += (LOGO_W + 8)) {
+ x = 0;
+ while (logo_count < smp_num_cpus && yoff < p->var.yres - (LOGO_H*3)) {

#if defined(CONFIG_FBCON_CFB16) || defined(CONFIG_FBCON_CFB24) || \
defined(CONFIG_FBCON_CFB32) || defined(CONFIG_FB_SBUS)
@@ -2134,7 +2143,7 @@
/* have at least 8 bits per color */
src = logo;
bdepth = depth/8;
- for( y1 = 0; y1 < LOGO_H; y1++ ) {
+ for( y1 = yoff; y1 < yoff + LOGO_H; y1++ ) {
dst = fb + y1*line + x*bdepth;
for( x1 = 0; x1 < LOGO_W; x1++, src++ ) {
val = (*src << redshift) |
@@ -2160,7 +2169,7 @@
unsigned int pix;
src = linux_logo16;
bdepth = (depth+7)/8;
- for( y1 = 0; y1 < LOGO_H; y1++ ) {
+ for( y1 = yoff; y1 < yoff + LOGO_H; y1++ ) {
dst = fb + y1*line + x*bdepth;
for( x1 = 0; x1 < LOGO_W/2; x1++, src++ ) {
pix = (*src >> 4) | 0x10; /* upper nibble */
@@ -2208,7 +2217,7 @@
blueshift = p->var.blue.offset - (8-p->var.blue.length);

src = logo;
- for( y1 = 0; y1 < LOGO_H; y1++ ) {
+ for( y1 = yoff; y1 < yoff + LOGO_H; y1++ ) {
dst = fb + y1*line + x*bdepth;
for( x1 = 0; x1 < LOGO_W; x1++, src++ ) {
val = safe_shift((linux_logo_red[*src-32] & redmask), redshift) |
@@ -2234,7 +2243,7 @@
#if defined(CONFIG_FBCON_CFB4)
if (depth == 4 && p->type == FB_TYPE_PACKED_PIXELS) {
src = logo;
- for( y1 = 0; y1 < LOGO_H; y1++) {
+ for( y1 = yoff; y1 < yoff + LOGO_H; y1++) {
dst = fb + y1*line + x/2;
for( x1 = 0; x1 < LOGO_W/2; x1++) {
u8 q = *src++;
@@ -2250,7 +2259,7 @@
/* depth 8 or more, packed, with color registers */

src = logo;
- for( y1 = 0; y1 < LOGO_H; y1++ ) {
+ for( y1 = yoff; y1 < yoff + LOGO_H; y1++ ) {
dst = fb + y1*line + x;
for( x1 = 0; x1 < LOGO_W; x1++ )
fb_writeb (*src++, dst++);
@@ -2282,7 +2291,7 @@
(1 << ((8-((pix*logo_depth)&7)-logo_depth) + bit)))

src = logo;
- for( y1 = 0; y1 < LOGO_H; y1++ ) {
+ for( y1 = yoff; y1 < yoff + LOGO_H; y1++ ) {
for( x1 = 0; x1 < LOGO_LINE; x1++, src += logo_depth ) {
dst = fb + y1*line + MAP_X(x/8+x1);
for( bit = 0; bit < logo_depth; bit++ ) {
@@ -2301,7 +2310,7 @@
* special case for logo_depth == 4: we used color registers 16..31,
* so fill plane 4 with 1 bits instead of 0 */
if (depth > logo_depth) {
- for( y1 = 0; y1 < LOGO_H; y1++ ) {
+ for( y1 = yoff; y1 < yoff + LOGO_H; y1++ ) {
for( x1 = 0; x1 < LOGO_LINE; x1++ ) {
dst = fb + y1*line + MAP_X(x/8+x1) + logo_depth*plane;
for( i = logo_depth; i < depth; i++, dst += plane )
@@ -2327,7 +2336,7 @@

int is_hga = !strncmp(p->fb_info->modename, "HGA", 3);
/* can't use simply memcpy because need to apply inverse */
- for( y1 = 0; y1 < LOGO_H; y1++ ) {
+ for( y1 = yoff; y1 < yoff + LOGO_H; y1++ ) {
src = logo + y1*LOGO_LINE;
if (is_hga)
dst = fb + (y1%4)*8192 + (y1>>2)*line + x/8;
@@ -2346,7 +2355,7 @@
outb_p(5,0x3ce); outb_p(0,0x3cf);

src = logo;
- for (y1 = 0; y1 < LOGO_H; y1++) {
+ for (y1 = yoff; y1 < yoff + LOGO_H; y1++) {
for (x1 = 0; x1 < LOGO_W / 2; x1++) {
dst = fb + y1*line + x1/4 + x/8;

@@ -2370,6 +2379,12 @@
done = 1;
}
#endif
+ logo_count++;
+ x += LOGO_W + 8;
+ if (x >= p->var.xres - (LOGO_W + 8)) {
+ yoff += LOGO_H + 8;
+ x = 0;
+ }
}

if (p->fb_info->fbops->fb_rasterimg)
-
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