svn_rev_645

moved

1 files changed, 139 insertions, 0 deletions

diff --git a/commands/splash.c b/commands/splash.c
new file mode 100644
index 0000000000..a2d14b0802
--- /dev/null
+++ b/commands/splash.c
@@ -0,0 +1,139 @@
+/*
+ * (C) Copyright 2007 Pengutronix
+ * Sascha Hauer, <s.hauer@pengutronix.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <common.h>
+
+#ifdef CFG_SPLASH
+
+#include <command.h>
+#include <bmp_layout.h>
+#include <splash.h>
+#include <asm/byteorder.h>
+
+static struct fb_data *fbd = NULL;
+
+int splash_set_fb_data(struct fb_data *d)
+{
+	fbd = d;
+	return 0;
+}
+
+int do_splash(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	ulong addr;
+	bmp_image_t *bmp;
+	int fb_line_length, bmp_line_length;
+	int copy_width, copy_height;
+	int colors;
+	int i, x, y;
+	char *src, *dst;
+	unsigned long *dstl, *srcl;
+
+	if (argc == 1) {
+		printf ("Usage:\n%s\n", cmdtp->usage);
+		return 1;
+	}
+
+	if (!fbd) {
+		printf("No framebuffer found\n");
+		return 1;
+	}
+
+	addr = simple_strtoul(argv[1], NULL, 16);
+
+	bmp = (bmp_image_t *)addr;
+
+	if (!((bmp->header.signature[0]=='B') &&
+	      (bmp->header.signature[1]=='M'))) {
+		printf("No valid bmp file found on address 0x%08x\n",addr);
+		return 1;
+	}
+
+	if (fbd->bpp != le16_to_cpu(bmp->header.bit_count)) {
+		printf("Display image depth does not match framebuffer image depth\n");
+		printf("(display depth: %dbpp image depth: %dbpp\n", fbd->bpp,
+				le16_to_cpu(bmp->header.bit_count));
+		return 1;
+	}
+
+	colors = 1 << le16_to_cpu (bmp->header.bit_count);
+	printf("Image size    : %d x %d\n", le32_to_cpu(bmp->header.width),
+	       le32_to_cpu(bmp->header.height));
+	printf("Bits per pixel: %d\n", le16_to_cpu(bmp->header.bit_count));
+	printf("colors used   : %d\n", colors);
+
+	/* Set color map to zero */
+	for (i = 0; i < colors; i++)
+		fbd->setcolreg(fbd, i, 0, 0, 0);
+
+	fb_line_length = (fbd->xres * fbd->bpp) >> 3;
+	bmp_line_length = (le32_to_cpu(bmp->header.width) *
+			  le16_to_cpu(bmp->header.bit_count)) >> 3;
+	if (bmp_line_length & 0x3)
+		bmp_line_length = (bmp_line_length & ~3) + 4;
+	copy_width = min(fb_line_length, bmp_line_length);
+	copy_height = min(fbd->yres, le32_to_cpu(bmp->header.height));
+
+	memset(fbd->fb, 0, fb_line_length * fbd->yres);
+
+//	printf("copy_width: %d copy_height: %d fb_line_length: %d "
+//		"bmp_line_length: %d\n", copy_width, copy_height,
+//		fb_line_length, bmp_line_length);
+	for (y = 0; y < copy_height; y++) {
+		dst = (char*)fbd->fb + y * fb_line_length;
+		src = (char*)(addr + bmp->header.data_offset) +
+			(le32_to_cpu(bmp->header.height) - y - 1) * bmp_line_length;
+
+//		printf("dst: %d src: %d\n",
+//			(unsigned long)dst - (unsigned long)fbd->fb,
+//			(unsigned long)src - (unsigned long)(addr + bmp->header.data_offset));
+
+		dstl = (unsigned long *)dst;
+		srcl = (unsigned long *)((unsigned long)src & ~3);
+		for (x = 0; x < (copy_width >> 2); x++) {
+			*dstl++ = *srcl++;
+		}
+	}
+
+	/* Set color map */
+	for (i = 0; i < colors; i++) {
+		bmp_color_table_entry_t cte = bmp->color_table[i];
+		fbd->setcolreg(fbd, i, cte.red, cte.green, cte.blue);
+	}
+
+	return 0;
+}
+
+U_BOOT_CMD(
+	splash,	2,	0,	do_splash,
+	"splash <imageaddr> - display a splash screen.",
+	"                     Only color mapped\n"
+	"                     bmp files are supported. Images smaller than\n"
+	"                     the screen are put in the top left corner, from \n"
+	"                     bigger images only the top left corner of the\n"
+	"                     image is displayed\n"
+);
+
+#endif /* CFG_SPLASH */
+