[PATCH 04/12] graphics_utils: Export get_pixel

[Sascha Hauer]

get_pixel converts a 32bit trgb color into framebuffer format. This
is useful for other code aswell, so export it.
Other functions in the graphics utils code use the name get/set_pixel
aswell, but instead of converting data they get a pixel from the framebuffer
or set a pixel on the framebuffer. To separate from these rename the
function to gu_hex_to_pixel.

Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
 include/gui/graphic_utils.h |  1 +
 lib/gui/graphic_utils.c     | 14 ++++++++++++--
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/include/gui/graphic_utils.h b/include/gui/graphic_utils.h
index 5c5c40a..136cac1 100644
--- a/include/gui/graphic_utils.h
+++ b/include/gui/graphic_utils.h
@@ -11,6 +11,7 @@
 #include <gui/image.h>
 #include <gui/gui.h>
 
+u32 gu_hex_to_pixel(struct fb_info *info, u32 color);
 void gu_rgba_blend(struct fb_info *info, struct image *img, void* dest, int height,
 	int width, int startx, int starty, bool is_rgba);
 void gu_set_pixel(struct fb_info *info, void *adr, u32 px);
diff --git a/lib/gui/graphic_utils.c b/lib/gui/graphic_utils.c
index 6d2540f..516e903 100644
--- a/lib/gui/graphic_utils.c
+++ b/lib/gui/graphic_utils.c
@@ -7,7 +7,17 @@
 #include <fs.h>
 #include <malloc.h>
 
-static u32 get_pixel(struct fb_info *info, u32 color)
+/**
+ * gu_hex_to_pixel - convert a 32bit color to fb format
+ * @info: The framebuffer info to convert the pixel for
+ * @color: The color in 0xttrrggbb format
+ *
+ * This converts a color in 0xttrrggbb format to the format
+ * suitable for writing directly into the framebuffer.
+ *
+ * Return: The pixel suitable for the framebuffer
+ */
+u32 gu_hex_to_pixel(struct fb_info *info, u32 color)
 {
 	u32 px;
 	u8 t = (color >> 24) & 0xff;
@@ -51,7 +61,7 @@ void gu_memset_pixel(struct fb_info *info, void* buf, u32 color, size_t size)
 	u32 px;
 	u8 *screen = buf;
 
-	px = get_pixel(info, color);
+	px = gu_hex_to_pixel(info, color);
 
 	switch (info->bits_per_pixel) {
 	case 8:
-- 
2.1.4