Initial upstream commit
The history contained unlicensed code so everything got squashed, sorry.
Change-Id: I9f5775208f9df6fb29074bf3bc498f68cb17b3a0
Signed-off-by: Nico Huber <nico.huber@secunet.com>
diff --git a/common/hw-gfx-framebuffer_filler.adb b/common/hw-gfx-framebuffer_filler.adb
new file mode 100644
index 0000000..8c1ffdf
--- /dev/null
+++ b/common/hw-gfx-framebuffer_filler.adb
@@ -0,0 +1,40 @@
+--
+-- Copyright (C) 2015-2016 secunet Security Networks AG
+--
+-- This program is free software; you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as published by
+-- the Free Software Foundation; version 2 of the License.
+--
+-- This program is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+-- GNU General Public License for more details.
+--
+
+with HW.MMIO_Range;
+pragma Elaborate_All (HW.MMIO_Range);
+
+package body HW.GFX.Framebuffer_Filler
+is
+
+ type FB_Index is new Natural range
+ 0 .. Natural (Width_Type'Last * Height_Type'Last) - 1;
+ type FB_Range is array (FB_Index) of Word32 with Pack;
+ package FB is new MMIO_Range (0, Word32, FB_Index, FB_Range);
+
+ procedure Fill (Linear_FB : Word64; Framebuffer : Framebuffer_Type)
+ is
+ Line_Start : Int32 := 0;
+ begin
+ FB.Set_Base_Address (Linear_FB);
+ for Line in 0 .. Framebuffer.Height - 1 loop
+ pragma Loop_Invariant (Line_Start = Line * Framebuffer.Stride);
+ for Col in 0 .. Framebuffer.Width - 1 loop
+ pragma Loop_Invariant (Line_Start = Line * Framebuffer.Stride);
+ FB.Write (FB_Index (Line_Start + Col), 16#ff000000#);
+ end loop;
+ Line_Start := Line_Start + Framebuffer.Stride;
+ end loop;
+ end Fill;
+
+end HW.GFX.Framebuffer_Filler;