[coreboot-gerrit] Patch set updated for coreboot: cbgfx: add clear_screen

[Patrick Georgi (pgeorgi@google.com)]

Patrick Georgi (pgeorgi at google.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/11924

-gerrit

commit 2085407703162fd8125fc34460ac04a0967799a5
Author: Daisuke Nojiri <dnojiri at chromium.org>
Date:   Mon Sep 21 17:17:25 2015 -0700

    cbgfx: add clear_screen
    
    clear_screen clears the screen with the specified color.
    
    BUG=none
    BRANCH=tot
    TEST=Tested on Samus
    
    Change-Id: I45e61c67485dbdbe15e2b602718232bc6382ad00
    Signed-off-by: Patrick Georgi <pgeorgi at google.com>
    Original-Commit-Id: 1ab04e2cc8d3c3e36e4eb41d9e7b0fdc25595200
    Original-Change-Id: I1b3890b9e8ca52e796f417b5f41d4fa02a97a255
    Original-Signed-off-by: Daisuke Nojiri <dnojiri at chromium.org>
    Original-Reviewed-on: https://chromium-review.googlesource.com/301451
    Original-Reviewed-by: Randall Spangler <rspangler at chromium.org>
---
 payloads/libpayload/drivers/video/graphics.c | 16 ++++++++++++++++
 payloads/libpayload/include/cbgfx.h          |  5 +++++
 2 files changed, 21 insertions(+)

diff --git a/payloads/libpayload/drivers/video/graphics.c b/payloads/libpayload/drivers/video/graphics.c
index d9c731b..d4d08f8 100644
--- a/payloads/libpayload/drivers/video/graphics.c
+++ b/payloads/libpayload/drivers/video/graphics.c
@@ -194,6 +194,22 @@ int clear_canvas(struct rgb_color *rgb)
 	return draw_box(&box, rgb);
 }
 
+int clear_screen(struct rgb_color *rgb)
+{
+	uint32_t color;
+	struct vector p;
+
+	if (cbgfx_init())
+		return CBGFX_ERROR_INIT;
+
+	color = calculate_color(rgb);
+	for (p.y = 0; p.y < screen.size.height; p.y++)
+		for (p.x = 0; p.x < screen.size.width; p.x++)
+			set_pixel(&p, color);
+
+	return CBGFX_SUCCESS;
+}
+
 /*
  * This check guarantees we will not try to read outside pixel data.
  */
diff --git a/payloads/libpayload/include/cbgfx.h b/payloads/libpayload/include/cbgfx.h
index 2d6b6e9..3c28a13 100644
--- a/payloads/libpayload/include/cbgfx.h
+++ b/payloads/libpayload/include/cbgfx.h
@@ -91,6 +91,11 @@ int draw_box(const struct rect *box, const struct rgb_color *rgb);
 int clear_canvas(struct rgb_color *rgb);
 
 /*
+ * Clear the screen
+ */
+int clear_screen(struct rgb_color *rgb);
+
+/*
  * Draw a bitmap image on screen.
  *
  * top_left_rel: coordinate of the top left corner of the image relative to the