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-rw-r--r--common/lcd.c27
1 files changed, 18 insertions, 9 deletions
diff --git a/common/lcd.c b/common/lcd.c
index 8890635..4a5c8d5 100644
--- a/common/lcd.c
+++ b/common/lcd.c
@@ -607,6 +607,22 @@ static inline void bitmap_plot(int x, int y) {}
#ifdef CONFIG_SPLASH_SCREEN_ALIGN
#define BMP_ALIGN_CENTER 0x7FFF
+
+static void splash_align_axis(int *axis, unsigned long panel_size,
+ unsigned long picture_size)
+{
+ unsigned long panel_picture_delta = panel_size - picture_size;
+ unsigned long axis_alignment;
+
+ if (*axis == BMP_ALIGN_CENTER)
+ axis_alignment = panel_picture_delta / 2;
+ else if (*axis < 0)
+ axis_alignment = panel_picture_delta + *axis + 1;
+ else
+ return;
+
+ *axis = max(0, axis_alignment);
+}
#endif
int lcd_display_bitmap(ulong bmp_image, int x, int y)
@@ -722,15 +738,8 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y)
padded_line = (width&0x3) ? ((width&~0x3)+4) : (width);
#ifdef CONFIG_SPLASH_SCREEN_ALIGN
- if (x == BMP_ALIGN_CENTER)
- x = max(0, (pwidth - width) / 2);
- else if (x < 0)
- x = max(0, pwidth - width + x + 1);
-
- if (y == BMP_ALIGN_CENTER)
- y = max(0, (panel_info.vl_row - height) / 2);
- else if (y < 0)
- y = max(0, panel_info.vl_row - height + y + 1);
+ splash_align_axis(&x, pwidth, width);
+ splash_align_axis(&y, panel_info.vl_row, height);
#endif /* CONFIG_SPLASH_SCREEN_ALIGN */
if ((x + width) > pwidth)