video: bmp: Clamp position to axis end with BMP_ALIGN_END

Signed-off-by: Samuel Dionne-Riel <samuel@dionne-riel.com>

Author: samueldr

drivers/video/video_bmp.c

@@ -305,6 +305,11 @@ int video_bmp_display(struct udevice *dev, ulong bmp_image, int x, int y,
 		video_splash_align_axis(&y, priv->ysize, height);
 	}
 
+	if (x == BMP_ALIGN_END)
+		x = pwidth - width;
+	if (y == BMP_ALIGN_END)
+		y = priv->ysize - height;
+
 	if ((x + width) > pwidth)
 		width = pwidth - x;
 	if ((y + height) > priv->ysize)

include/splash.h

@@ -64,5 +64,6 @@ void splash_get_pos(int *x, int *y);
 int splash_display(void);
 
 #define BMP_ALIGN_CENTER	0x7FFF
+#define BMP_ALIGN_END		0x7FFE
 
 #endif