From fecac46cf8757dc4f00a7812310e060f3b0c6eb4 Mon Sep 17 00:00:00 2001 From: Tom Wai-Hong Tam Date: Fri, 28 Sep 2012 15:11:14 +0000 Subject: [PATCH] lcd: Fix BMP decode bug that skips the wrong padded row This change fixed 2 things: - Rename padded_line to padded_width since it is (width + padded_row) not line. - When finished a line, should skip the padded_row that is (padded_width - width) instead of (width - padded_width). Reference: http://en.wikipedia.org/wiki/BMP_file_format Signed-off-by: Tom Wai-Hong Tam Signed-off-by: Simon Glass --- common/lcd.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/common/lcd.c b/common/lcd.c index 4cea04e247..7c6cb096f7 100644 --- a/common/lcd.c +++ b/common/lcd.c @@ -675,7 +675,7 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y) uchar *fb; bmp_image_t *bmp=(bmp_image_t *)bmp_image; uchar *bmap; - ushort padded_line; + ushort padded_width; unsigned long width, height, byte_width; unsigned long pwidth = panel_info.vl_col; unsigned colors, bpix, bmp_bpix; @@ -762,7 +762,7 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y) } #endif - padded_line = (width&0x3) ? ((width&~0x3)+4) : (width); + padded_width = (width&0x3) ? ((width&~0x3)+4) : (width); #ifdef CONFIG_SPLASH_SCREEN_ALIGN splash_align_axis(&x, pwidth, width); @@ -796,7 +796,7 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y) fb += sizeof(uint16_t) / sizeof(*fb); } } - bmap += (width - padded_line); + bmap += (padded_width - width); fb -= (byte_width + lcd_line_length); } break; @@ -808,7 +808,7 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y) for (j = 0; j < width; j++) fb_put_word(&fb, &bmap); - bmap += (padded_line - width) * 2; + bmap += (padded_width - width) * 2; fb -= (width * 2 + lcd_line_length); } break; -- 2.25.1