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From: cvs at opencores.org<cvs@o...>
Date: Mon Feb 26 00:43:04 CET 2007
Subject: [cvs-checkins] MODIFIED: color_converter ...
Date: 00/07/02 26:00:43

Added: color_converter/rtl/vhdl ccfactors_pkg.vhd colorconv.vhd
colorconv_wb.vhd
Log:
Color Converter is separated from matrix3x3 project.


Revision Changes Path
1.1 color_converter/rtl/vhdl/ccfactors_pkg.vhd

http://www.opencores.org/cvsweb.shtml/color_converter/rtl/vhdl/ccfactors_pkg.vhd?rev=1.1&content-type=text/x-cvsweb-markup

Index: ccfactors_pkg.vhd
===================================================================
-- ***** BEGIN LICENSE BLOCK *****
----------------------------------------------------------------------
---- ----
---- Color Converter IP Core ----
---- ----
---- This file is part of the matrix 3x3 multiplier project ----
---- http://www.opencores.org/projects.cgi/web/color_converter/ ----
---- ----
---- Description ----
---- True matrix 3x3 color converter ----
---- ----
---- To Do: ----
---- - ----
---- ----
---- Author(s): ----
---- - Michael Tsvetkov, michland@o... ----
---- - Vyacheslav Gulyaev, vv_gulyaev@o... ----
---- ----
----------------------------------------------------------------------
---- ----
---- Copyright (C) 2006 Authors and OPENCORES.ORG ----
---- ----
---- This source file may be used and distributed without ----
---- restriction provided that this copyright statement is not ----
---- removed from the file and that any derivative work contains ----
---- the original copyright notice and the associated disclaimer. ----
---- ----
---- This source file is free software; you can redistribute it ----
---- and/or modify it under the terms of the GNU Lesser General ----
---- Public License as published by the Free Software Foundation; ----
---- either version 2.1 of the License, or (at your option) any ----
---- later version. ----
---- ----
---- This source 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 Lesser General Public License for more ----
---- details. ----
---- ----
---- You should have received a copy of the GNU Lesser General ----
---- Public License along with this source; if not, download it ----
---- from http://www.gnu.org/licenses/lgpl.txt or write to the ----
---- Free Software Foundation, Inc., 51 Franklin Street, ----
---- Fifth Floor, Boston, MA 02110-1301 USA ----
---- ----
----------------------------------------------------------------------
-- * ***** END LICENSE BLOCK ***** */

-----------------------------------------------------------------------
--
-- There is package with factors for different color convertions.
-- Is used with mult3x3 matrix multiplier.
--
-- Source: "Digital Video and HDTV. Algorithms and Interfaces"
-- Charles Poynton; ISBN 1-55860-792-7.
--
-- rev 1.0, 06.30.2006 : Michael Tsvetkov (csimplemapi@m...)
--
-----------------------------------------------------------------------

library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_arith.all;

package ccfactors_pkg is

TYPE COLOR_CONVERTION IS (
ComputerRGB_to_YCbCr601,
YCbCr601_to_ComputerRGB,
StudioRGB_to_YCbCr601,
YCbCr601_to_StudioRGB,
ComputerRGB_to_YCbCr709,
YCbCr709_to_ComputerRGB,
StudioRGB_to_YCbCr709,
YCbCr709_to_StudioRGB,
YCbCr709_to_YCbCr601,
YCbCr601_to_YCbCr709,
YUV601_to_YIQ601,
StudioRGB_to_YIQ601,
YIQ601_to_StudioRGB,
ComputerRGB_to_YCgCo,
YCgCo_to_ComputerRGB
);
CONSTANT F_FACTORS_PART : INTEGER := 15; -- float part width, 10-E4 accuracy
CONSTANT INT_FACTORS_PART: INTEGER := 3; -- integer part with, from -5 to +4 range (-4.999999 to 3.999999)

CONSTANT FACTORS_WIDTH : integer := (f_factors_part + int_factors_part); -- full factor width
----------------------------------------------------------------------------------- -- Matrix factors for the Computer RGB to Rec.601 (SD) YCbCr color convertion ----------------------------------------------------------------------------------- constant crgb2ycbcr601_a11 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000010000011011111"; -- 0.256789 constant crgb2ycbcr601_a12 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000100000010000110"; -- 0.504129 constant crgb2ycbcr601_a13 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000110010001000"; -- 0.0979 constant crgb2ycbcr601_a21 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111110110100000111"; -- -0.148223 constant crgb2ycbcr601_a22 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111101101011000001"; -- -0.290992 constant crgb2ycbcr601_a23 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000011100000111000"; -- 0.439215 constant crgb2ycbcr601_a31 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000011100000111000"; -- 0.439215 constant crgb2ycbcr601_a32 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111101000011101100"; -- -0.367789 constant crgb2ycbcr601_a33 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111111011011011100"; -- -0.071426 constant crgb2ycbcr601_b1x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant crgb2ycbcr601_b2x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant crgb2ycbcr601_b3x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant crgb2ycbcr601_b1y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000010000000000000"; -- 16 constant crgb2ycbcr601_b2y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"010000000000000000"; -- 128 constant crgb2ycbcr601_b3y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"010000000000000000"; -- 128 ----------------------------------------------------------------------------------- -- Matrix factors for the Rec.601 YCbCr to Computer RGB color convertion ----------------------------------------------------------------------------------- constant ycbcr601_crgb_a11 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001001010100001011"; -- 1.16438 constant ycbcr601_crgb_a12 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycbcr601_crgb_a13 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001100110001001010"; -- 1.59603 constant ycbcr601_crgb_a21 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001001010100001011"; -- 1.16438 constant ycbcr601_crgb_a22 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111100110111011010"; -- -0.391762 constant ycbcr601_crgb_a23 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111001011111110000"; -- -0.812969 constant ycbcr601_crgb_a31 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001001010100001011"; -- 1.16438 constant ycbcr601_crgb_a32 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"010000001000110100"; -- 2.01723 constant ycbcr601_crgb_a33 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycbcr601_crgb_b1x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111110000000000000"; -- -16 constant ycbcr601_crgb_b2x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"110000000000000000"; -- -128 constant ycbcr601_crgb_b3x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"110000000000000000"; -- -128 constant ycbcr601_crgb_b1y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycbcr601_crgb_b2y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycbcr601_crgb_b3y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 ----------------------------------------------------------------------------------- -- Matrix factors for the Studio RGB to Rec.601 (SD) YCbCr color convertion ----------------------------------------------------------------------------------- constant srgb2ycbcr601_a11 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000010011001000110"; -- 0.299000 constant srgb2ycbcr601_a12 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000100101100100011"; -- 0.587000 constant srgb2ycbcr601_a13 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000111010011000"; -- 0.114000 constant srgb2ycbcr601_a21 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111110100111101001"; -- -0.172586 constant srgb2ycbcr601_a22 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111101010010100001"; -- -0.338828 constant srgb2ycbcr601_a23 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000100000101110110"; -- 0.511414 constant srgb2ycbcr601_a31 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000100000101110110"; -- 0.511414 constant srgb2ycbcr601_a32 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111100100100101111"; -- -0.428246 constant srgb2ycbcr601_a33 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111111010101011011"; -- -0.083168 constant srgb2ycbcr601_b1x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant srgb2ycbcr601_b2x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant srgb2ycbcr601_b3x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant srgb2ycbcr601_b1y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000010000000000000"; -- 16 constant srgb2ycbcr601_b2y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"010000000000000000"; -- 128 constant srgb2ycbcr601_b3y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"010000000000000000"; -- 128 ----------------------------------------------------------------------------------- -- Matrix factors for the Rec.601 YCbCr to Studio RGB color convertion ----------------------------------------------------------------------------------- constant ycbcr601_srgb_a11 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001000000000000000"; -- 1 constant ycbcr601_srgb_a12 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycbcr601_srgb_a13 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001010111101110011"; -- 1.37071 constant ycbcr601_srgb_a21 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001000000000000000"; -- 1 constant ycbcr601_srgb_a22 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111101010011101111"; -- -0.336453 constant ycbcr601_srgb_a23 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111010011010100010"; -- -0.698195 constant ycbcr601_srgb_a31 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001000000000000000"; -- 1 constant ycbcr601_srgb_a32 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001101110111000001"; -- 1.73245 constant ycbcr601_srgb_a33 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycbcr601_srgb_b1x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111110000000000000"; -- -16 constant ycbcr601_srgb_b2x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"110000000000000000"; -- -128 constant ycbcr601_srgb_b3x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"110000000000000000"; -- -128 constant ycbcr601_srgb_b1y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycbcr601_srgb_b2y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycbcr601_srgb_b3y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 ----------------------------------------------------------------------------------- -- Matrix factors for the Computer RGB to Rec.709 (HD) YCbCr color convertion ----------------------------------------------------------------------------------- constant crgb2ycbcr709_a11 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000001011101011111"; -- 0.182586 constant crgb2ycbcr709_a12 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000100111010011111"; -- 0.614230 constant crgb2ycbcr709_a13 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000011111110000"; -- 0.062008 constant crgb2ycbcr709_a21 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111111001100011110"; -- -0.100645 constant crgb2ycbcr709_a22 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111101010010101010"; -- -0.338570 constant crgb2ycbcr709_a23 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000011100000111000"; -- 0.439215 constant crgb2ycbcr709_a31 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000011100000111000"; -- 0.439215 constant crgb2ycbcr709_a32 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111100110011110000"; -- -0.398941 constant crgb2ycbcr709_a33 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111111101011011000"; -- -0.040273 constant crgb2ycbcr709_b1x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant crgb2ycbcr709_b2x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant crgb2ycbcr709_b3x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant crgb2ycbcr709_b1y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000010000000000000"; -- 16 constant crgb2ycbcr709_b2y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"010000000000000000"; -- 128 constant crgb2ycbcr709_b3y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"010000000000000000"; -- 128 ----------------------------------------------------------------------------------- -- Matrix factors for the Rec.709 YCbCr to Computer RGB color convertion ----------------------------------------------------------------------------------- constant ycbcr709_crgb_a11 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001001010100001010"; -- 1.16438 constant ycbcr709_crgb_a12 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycbcr709_crgb_a13 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001110010101111001"; -- 1.79274 constant ycbcr709_crgb_a21 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001001010100001010"; -- 1.16438 constant ycbcr709_crgb_a22 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111110010010110011"; -- -0.213250 constant ycbcr709_crgb_a23 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111011101111001010"; -- -0.532910 constant ycbcr709_crgb_a31 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001001010100001010"; -- 1.16438 constant ycbcr709_crgb_a32 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"010000111001100011"; -- 2.11240 constant ycbcr709_crgb_a33 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycbcr709_crgb_b1x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111110000000000000"; -- -16 constant ycbcr709_crgb_b2x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"110000000000000000"; -- -128 constant ycbcr709_crgb_b3x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"110000000000000000"; -- -128 constant ycbcr709_crgb_b1y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycbcr709_crgb_b2y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycbcr709_crgb_b3y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 ----------------------------------------------------------------------------------- -- Matrix factors for the Studio RGB to Rec.709 (HD) YCbCr color convertion ----------------------------------------------------------------------------------- constant srgb2ycbcr709_a11 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000001101100110111"; -- 0.212602 constant srgb2ycbcr709_a12 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000101101110001100"; -- 0.715199 constant srgb2ycbcr709_a13 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000100100111110"; -- 0.072199 constant srgb2ycbcr709_a21 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111111000100000000"; -- -0.117188 constant srgb2ycbcr709_a22 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111100110110001010"; -- -0.394227 constant srgb2ycbcr709_a23 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000100000101110110"; -- 0.511414 constant srgb2ycbcr709_a31 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000100000101110110"; -- 0.511414 constant srgb2ycbcr709_a32 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111100010010001011"; -- -0.464523 constant srgb2ycbcr709_a33 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111111100111111111"; -- -0.046895 constant srgb2ycbcr709_b1x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant srgb2ycbcr709_b2x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant srgb2ycbcr709_b3x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant srgb2ycbcr709_b1y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000010000000000000"; -- 16 constant srgb2ycbcr709_b2y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"010000000000000000"; -- 128 constant srgb2ycbcr709_b3y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"010000000000000000"; -- 128 ----------------------------------------------------------------------------------- -- Matrix factors for the Rec.709 YCbCr to Studio RGB color convertion ----------------------------------------------------------------------------------- constant ycbcr709_srgb_a11 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001000000000000000"; -- 1 constant ycbcr709_srgb_a12 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycbcr709_srgb_a13 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001100010100010011"; -- 1.53965 constant ycbcr709_srgb_a21 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001000000000000000"; -- 1 constant ycbcr709_srgb_a22 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111110100010001111"; -- -0.183145 constant ycbcr709_srgb_a23 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111100010101101011"; -- -0.457676 constant ycbcr709_srgb_a31 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001000000000000000"; -- 1 constant ycbcr709_srgb_a32 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001110100000110111"; -- 1.81418 constant ycbcr709_srgb_a33 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycbcr709_srgb_b1x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111110000000000000"; -- -16 constant ycbcr709_srgb_b2x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"110000000000000000"; -- -128 constant ycbcr709_srgb_b3x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"110000000000000000"; -- -128 constant ycbcr709_srgb_b1y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycbcr709_srgb_b2y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycbcr709_srgb_b3y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 ----------------------------------------------------------------------------------- -- Matrix factors for the Rec.709 YCbCr to Rec.601 YCbCr color convertion ----------------------------------------------------------------------------------- constant ycbcr709_ycbcr601_a11 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001000000000000000"; -- 1 constant ycbcr709_ycbcr601_a12 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000110010110110"; -- 0.099312 constant ycbcr709_ycbcr601_a13 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000001100010001010"; -- 0.1917 constant ycbcr709_ycbcr601_a21 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycbcr709_ycbcr601_a22 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000111111010110100"; -- 0.989854 constant ycbcr709_ycbcr601_a23 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111111000111010110"; -- -0.110653 constant ycbcr709_ycbcr601_a31 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycbcr709_ycbcr601_a32 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111111011010111010"; -- -0.072453 constant ycbcr709_ycbcr601_a33 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000111110111100000"; -- 0.983398 constant ycbcr709_ycbcr601_b1x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycbcr709_ycbcr601_b2x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycbcr709_ycbcr601_b3x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycbcr709_ycbcr601_b1y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycbcr709_ycbcr601_b2y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycbcr709_ycbcr601_b3y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 ----------------------------------------------------------------------------------- -- Matrix factors for the Rec.601 YCbCr to Rec.709 YCbCr color convertion ----------------------------------------------------------------------------------- constant ycbcr601_ycbcr709_a11 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001000000000000000"; -- 1 constant ycbcr601_ycbcr709_a12 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111111000100110110"; -- -0.11555 constant ycbcr601_ycbcr709_a13 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111110010101100010"; -- -0.207938 constant ycbcr601_ycbcr709_a21 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycbcr601_ycbcr709_a22 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001000001001100011"; -- 1.01864 constant ycbcr601_ycbcr709_a23 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000111010101100"; -- 0.114618 constant ycbcr601_ycbcr709_a31 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycbcr601_ycbcr709_a32 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000100110011011"; -- 0.075049 constant ycbcr601_ycbcr709_a33 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001000001100111110"; -- 1.025327 constant ycbcr601_ycbcr709_b1x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycbcr601_ycbcr709_b2x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycbcr601_ycbcr709_b3x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycbcr601_ycbcr709_b1y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycbcr601_ycbcr709_b2y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycbcr601_ycbcr709_b3y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 ----------------------------------------------------------------------------------- -- Matrix factors for the Rec.601 YUV to Rec.601 YIQ color convertion ----------------------------------------------------------------------------------- constant yuv601_yiq601_a11 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001000000000000000"; -- 1 constant yuv601_yiq601_a12 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant yuv601_yiq601_a13 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant yuv601_yiq601_a21 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant yuv601_yiq601_a22 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111011101001001001"; -- -0.544639 constant yuv601_yiq601_a23 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000110101101011010"; -- 0.838671 constant yuv601_yiq601_a31 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant yuv601_yiq601_a32 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000110101101011010"; -- 0.838671 constant yuv601_yiq601_a33 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000100010110110111"; -- 0.544639 constant yuv601_yiq601_b1x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant yuv601_yiq601_b2x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant yuv601_yiq601_b3x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant yuv601_yiq601_b1y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant yuv601_yiq601_b2y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant yuv601_yiq601_b3y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 ----------------------------------------------------------------------------------- -- Matrix factors for the Studio RGB to Rec.601 YIQ color convertion ----------------------------------------------------------------------------------- constant srgb2yiq601_a11 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000010011001000110"; -- 0.299 constant srgb2yiq601_a12 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000100101100100011"; -- 0.587 constant srgb2yiq601_a13 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000111010011000"; -- 0.114 constant srgb2yiq601_a21 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000100110001000111"; -- 0.595901 constant srgb2yiq601_a22 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111101110011011011"; -- -0.274557 constant srgb2yiq601_a23 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111101011011011110"; -- -0.321344 constant srgb2yiq601_a31 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000001101100010100"; -- 0.211537 constant srgb2yiq601_a32 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111011110100010111"; -- -0.522736 constant srgb2yiq601_a33 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000010011111010101"; -- 0.3112 constant srgb2yiq601_b1x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant srgb2yiq601_b2x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant srgb2yiq601_b3x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant srgb2yiq601_b1y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant srgb2yiq601_b2y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant srgb2yiq601_b3y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 ----------------------------------------------------------------------------------- -- Matrix factors for the Rec.601 YIQ to Studio RGB convertion ----------------------------------------------------------------------------------- constant yiq601_srgb_a11 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001000000000000000"; -- 1 constant yiq601_srgb_a12 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000111101001011110"; -- 0.955986 constant yiq601_srgb_a13 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000100111101110111"; -- 0.620825 constant yiq601_srgb_a21 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001000000000000000"; -- 1 constant yiq601_srgb_a22 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111101110100101111"; -- -0.272013 constant yiq601_srgb_a23 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111010110100101000"; -- -0.647204 constant yiq601_srgb_a31 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001000000000000000"; -- 1 constant yiq601_srgb_a32 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"110111001001010110"; -- -1.106740 constant yiq601_srgb_a33 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001101101000100100"; -- 1.704230 constant yiq601_srgb_b1x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant yiq601_srgb_b2x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant yiq601_srgb_b3x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant yiq601_srgb_b1y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant yiq601_srgb_b2y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant yiq601_srgb_b3y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 ----------------------------------------------------------------------------------- -- Matrix factors for the Computer RGB to YCgCo convertion ----------------------------------------------------------------------------------- constant crgb2ycgco_a11 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000010000000000000"; -- 0.25 constant crgb2ycgco_a12 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000100000000000000"; -- 0.50 constant crgb2ycgco_a13 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000010000000000000"; -- 0.25 constant crgb2ycgco_a21 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000100000000000000"; -- 0.50 constant crgb2ycgco_a22 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant crgb2ycgco_a23 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111100000000000000"; -- -0.50 constant crgb2ycgco_a31 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111110000000000000"; -- -0.25 constant crgb2ycgco_a32 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000100000000000000"; -- 0.50 constant crgb2ycgco_a33 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111110000000000000"; -- -0.25 constant crgb2ycgco_b1x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant crgb2ycgco_b2x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant crgb2ycgco_b3x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant crgb2ycgco_b1y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000010000000000000"; -- 16 constant crgb2ycgco_b2y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"010000000000000000"; -- 128 constant crgb2ycgco_b3y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"010000000000000000"; -- 128 ----------------------------------------------------------------------------------- -- Matrix factors for the YCgCo to Computer RGB convertion ----------------------------------------------------------------------------------- constant ycgco2crgb_a11 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001000000000000000"; -- 1 constant ycgco2crgb_a12 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001000000000000000"; -- 1 constant ycgco2crgb_a13 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111000000000000000"; -- -1 constant ycgco2crgb_a21 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001000000000000000"; -- 1 constant ycgco2crgb_a22 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycgco2crgb_a23 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001000000000000000"; -- 1 constant ycgco2crgb_a31 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"001000000000000000"; -- 1 constant ycgco2crgb_a32 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111000000000000000"; -- -1 constant ycgco2crgb_a33 : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111000000000000000"; -- -1 constant ycgco2crgb_b1x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"111110000000000000"; -- -16 constant ycgco2crgb_b2x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"110000000000000000"; -- -128 constant ycgco2crgb_b3x : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"110000000000000000"; -- -128 constant ycgco2crgb_b1y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycgco2crgb_b2y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 constant ycgco2crgb_b3y : SIGNED(FACTORS_WIDTH-1 DOWNTO 0) := b"000000000000000000"; -- 0 end ccfactors_pkg; --------------------------------------------------------------- --------------------------------------------------------------- package body ccfactors_pkg is end ccfactors_pkg; 1.1 color_converter/rtl/vhdl/colorconv.vhd http://www.opencores.org/cvsweb.shtml/color_converter/rtl/vhdl/colorconv.vhd?rev=1.1&content-type=text/x-cvsweb-markup Index: colorconv.vhd =================================================================== -- ***** BEGIN LICENSE BLOCK ***** ---------------------------------------------------------------------- ---- ---- ---- Color Converter IP Core ---- ---- ---- ---- This file is part of the matrix 3x3 multiplier project ---- ---- http://www.opencores.org/projects.cgi/web/color_converter/ ---- ---- ---- ---- Description ---- ---- True matrix 3x3 color converter ---- ---- ---- ---- To Do: ---- ---- - ---- ---- ---- ---- Author(s): ---- ---- - Michael Tsvetkov, michland@o... ---- ---- - Vyacheslav Gulyaev, vv_gulyaev@o... ---- ---- ---- ---------------------------------------------------------------------- ---- ---- ---- Copyright (C) 2006 Authors and OPENCORES.ORG ---- ---- ---- ---- This source file may be used and distributed without ---- ---- restriction provided that this copyright statement is not ---- ---- removed from the file and that any derivative work contains ---- ---- the original copyright notice and the associated disclaimer. ---- ---- ---- ---- This source file is free software; you can redistribute it ---- ---- and/or modify it under the terms of the GNU Lesser General ---- ---- Public License as published by the Free Software Foundation; ---- ---- either version 2.1 of the License, or (at your option) any ---- ---- later version. ---- ---- ---- ---- This source 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 Lesser General Public License for more ---- ---- details. ---- ---- ---- ---- You should have received a copy of the GNU Lesser General ---- ---- Public License along with this source; if not, download it ---- ---- from http://www.gnu.org/licenses/lgpl.txt or write to the ---- ---- Free Software Foundation, Inc., 51 Franklin Street, ---- ---- Fifth Floor, Boston, MA 02110-1301 USA ---- ---- ---- ---------------------------------------------------------------------- -- * ***** END LICENSE BLOCK ***** */ library IEEE; use IEEE.std_logic_1164.all; use IEEE.std_logic_arith.all; use work.ccfactors_pkg.all; entity colorconv is generic(DATA_WIDTH : INTEGER); port ( clk : IN STD_LOGIC; rstn : IN STD_LOGIC; DATA_ENA : IN STD_LOGIC; DOUT_RDY : OUT STD_LOGIC; -- input vector x1 : IN UNSIGNED( data_width-1 downto 0 ); x2 : IN UNSIGNED( data_width-1 downto 0 ); x3 : IN UNSIGNED( data_width-1 downto 0 ); -- matrix factors a11,a12,a13 : IN SIGNED( FACTORS_WIDTH-1 downto 0 ); a21,a22,a23 : IN SIGNED( FACTORS_WIDTH-1 downto 0 ); a31,a32,a33 : IN SIGNED( FACTORS_WIDTH-1 downto 0 ); --shift vectors b1x,b2x,b3x : IN SIGNED( FACTORS_WIDTH-1 downto 0 ); b1y,b2y,b3y : IN SIGNED( FACTORS_WIDTH-1 downto 0 ); -- output vector y1c : OUT SIGNED( int_factors_part-1 downto 0 ); y2c : OUT SIGNED( int_factors_part-1 downto 0 ); y3c : OUT SIGNED( int_factors_part-1 downto 0 ); y1 : OUT UNSIGNED( data_width-1 downto 0 ); y2 : OUT UNSIGNED( data_width-1 downto 0 ); y3 : OUT UNSIGNED( data_width-1 downto 0 ) ); end colorconv; architecture a of colorconv is -- the result full width will be signal m11, m12, m13 : SIGNED( (data_width+factors_width) downto 0 ); signal m21, m22, m23 : SIGNED( (data_width+factors_width) downto 0 ); signal m31, m32, m33 : SIGNED( (data_width+factors_width) downto 0 ); signal x1sh, x2sh, x3sh : SIGNED( data_width downto 0 ); signal x1s, x2s, x3s : SIGNED( data_width downto 0 ); signal y1s, y2s, y3s : SIGNED( data_width+int_factors_part-1 downto 0 ); signal y1sh, y2sh, y3sh : SIGNED( data_width+int_factors_part-1 downto 0 ); signal y1r, y2r, y3r : SIGNED( data_width+int_factors_part-1 downto 0 ); signal y1ro, y2ro, y3ro : SIGNED( data_width+int_factors_part-1 downto 0 ); signal s1w, s2w, s3w : SIGNED( (data_width+factors_width) downto 0 ); signal d1, d2, d3 : SIGNED( (data_width+factors_width) downto 0 ); signal y1w,y2w,y3w : SIGNED( (data_width+factors_width) downto 0 ); signal pipe_delay : STD_LOGIC_VECTOR( 7 downto 0 ); begin x1s <= '0' & Signed(x1); x2s <= '0' & Signed(x2); x3s <= '0' & Signed(x3); process(clk, rstn) begin if rstn = '0' then m11 <= (others=>'0'); m12 <= (others=>'0'); m13 <= (others=>'0'); m21 <= (others=>'0'); m22 <= (others=>'0'); m23 <= (others=>'0'); m31 <= (others=>'0'); m32 <= (others=>'0'); m33 <= (others=>'0'); s1w <= (others=>'0'); s2w <= (others=>'0'); s3w <= (others=>'0'); d1 <= (others=>'0'); d2 <= (others=>'0'); d3 <= (others=>'0'); y1w <= (others=>'0'); y2w <= (others=>'0'); y3w <= (others=>'0'); y1sh <= (others=>'0'); y2sh <= (others=>'0'); y3sh <= (others=>'0'); y1ro <= (others=>'0'); y2ro <= (others=>'0'); y3ro <= (others=>'0'); elsif rising_edge(clk) then x1sh <= x1s+b1x(FACTORS_WIDTH-1 DOWNTO FACTORS_WIDTH-DATA_WIDTH-1); x2sh <= x2s+b2x(FACTORS_WIDTH-1 DOWNTO FACTORS_WIDTH-DATA_WIDTH-1); x3sh <= x3s+b3x(FACTORS_WIDTH-1 DOWNTO FACTORS_WIDTH-DATA_WIDTH-1); m11 <= a11 * x1sh; m12 <= a12 * x2sh; m13 <= a13 * x3sh; m21 <= a21 * x1sh; m22 <= a22 * x2sh; m23 <= a23 * x3sh; m31 <= a31 * x1sh; m32 <= a32 * x2sh; m33 <= a33 * x3sh; s1w <= m11 + m12; s2w <= m21 + m22; s3w <= m31 + m32; d1 <= m13; d2 <= m23; d3 <= m33; y1w <= s1w + d1; y2w <= s2w + d2; y3w <= s3w + d3; y1s(data_width+int_factors_part-1 downto data_width) <= y1w(data_width+int_factors_part+f_factors_part-1 downto data_width+f_factors_part); y2s(data_width+int_factors_part-1 downto data_width) <= y2w(data_width+int_factors_part+f_factors_part-1 downto data_width+f_factors_part); y3s(data_width+int_factors_part-1 downto data_width) <= y3w(data_width+int_factors_part+f_factors_part-1 downto data_width+f_factors_part); y1s(data_width-1 downto 0) <= y1w(data_width+f_factors_part-1 downto f_factors_part); y2s(data_width-1 downto 0) <= y2w(data_width+f_factors_part-1 downto f_factors_part); y3s(data_width-1 downto 0) <= y3w(data_width+f_factors_part-1 downto f_factors_part); y1sh <= y1s + b1y(FACTORS_WIDTH-1 DOWNTO FACTORS_WIDTH-DATA_WIDTH-1); y2sh <= y2s + b2y(FACTORS_WIDTH-1 DOWNTO FACTORS_WIDTH-DATA_WIDTH-1); y3sh <= y3s + b3y(FACTORS_WIDTH-1 DOWNTO FACTORS_WIDTH-DATA_WIDTH-1); y1r <= y1sh+y1w(f_factors_part-1); y2r <= y2sh+y2w(f_factors_part-1); y3r <= y3sh+y3w(f_factors_part-1); if (y1r(data_width+int_factors_part-1)='1' and y1r(data_width)='1')then y1ro(data_width-1 downto 0)<=(others=>'0'); elsif (y1r(data_width+int_factors_part-1)='0' and y1r(data_width)='1')then y1ro(data_width-1 downto 0)<=(others=>'1'); else y1ro<=y1r; end if; if (y2r(data_width+int_factors_part-1)='1' and y2r(data_width)='1')then y2ro(data_width-1 downto 0)<=(others=>'0'); elsif (y2r(data_width+int_factors_part-1)='0' and y2r(data_width)='1')then y2ro(data_width-1 downto 0)<=(others=>'1'); else y2ro<=y2r; end if; if (y3r(data_width+int_factors_part-1)='1' and y3r(data_width)='1')then y3ro(data_width-1 downto 0)<=(others=>'0'); elsif (y3r(data_width+int_factors_part-1)='0' and y3r(data_width)='1')then y3ro(data_width-1 downto 0)<=(others=>'1'); else y3ro<=y3r; end if; end if; end process; y1c <= y1r(data_width+int_factors_part-1 downto data_width); y2c <= y2r(data_width+int_factors_part-1 downto data_width); y3c <= y3r(data_width+int_factors_part-1 downto data_width); y1 <= UNSIGNED(y1ro(data_width-1 downto 0)); y2 <= UNSIGNED(y2ro(data_width-1 downto 0)); y3 <= UNSIGNED(y3ro(data_width-1 downto 0)); -- this shift register is nessecary for generating RDY sig and easy integration with fifo process(clk, rstn) begin if rstn = '0' then pipe_delay <= (others=>'0'); elsif rising_edge(clk) then pipe_delay(0) <= DATA_ENA; pipe_delay(7 downto 1) <= pipe_delay(6 downto 0); end if; end process; DOUT_RDY <= pipe_delay(7); end a; 1.1 color_converter/rtl/vhdl/colorconv_wb.vhd http://www.opencores.org/cvsweb.shtml/color_converter/rtl/vhdl/colorconv_wb.vhd?rev=1.1&content-type=text/x-cvsweb-markup Index: colorconv_wb.vhd =================================================================== -- ***** BEGIN LICENSE BLOCK ***** ---------------------------------------------------------------------- ---- ---- ---- Color Converter IP Core ---- ---- ---- ---- This file is part of the matrix 3x3 multiplier project ---- ---- http://www.opencores.org/projects.cgi/web/color_converter/ ---- ---- ---- ---- Description ---- ---- True matrix 3x3 color converter ---- ---- ---- ---- To Do: ---- ---- - ---- ---- ---- ---- Author(s): ---- ---- - Michael Tsvetkov, michland@o... ---- ---- - Vyacheslav Gulyaev, vv_gulyaev@o... ---- ---- ---- ---------------------------------------------------------------------- ---- ---- ---- Copyright (C) 2006 Authors and OPENCORES.ORG ---- ---- ---- ---- This source file may be used and distributed without ---- ---- restriction provided that this copyright statement is not ---- ---- removed from the file and that any derivative work contains ---- ---- the original copyright notice and the associated disclaimer. ---- ---- ---- ---- This source file is free software; you can redistribute it ---- ---- and/or modify it under the terms of the GNU Lesser General ---- ---- Public License as published by the Free Software Foundation; ---- ---- either version 2.1 of the License, or (at your option) any ---- ---- later version. ---- ---- ---- ---- This source 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 Lesser General Public License for more ---- ---- details. ---- ---- ---- ---- You should have received a copy of the GNU Lesser General ---- ---- Public License along with this source; if not, download it ---- ---- from http://www.gnu.org/licenses/lgpl.txt or write to the ---- ---- Free Software Foundation, Inc., 51 Franklin Street, ---- ---- Fifth Floor, Boston, MA 02110-1301 USA ---- ---- ---- ---------------------------------------------------------------------- -- * ***** END LICENSE BLOCK ***** */ library IEEE; use IEEE.std_logic_1164.all; use IEEE.std_logic_arith.all; use work.ccfactors_pkg.all; entity colorconv_wb is generic( DATA_WIDTH : INTEGER:=16); port ( -- Data Bus (piped stream, our own bus) - x input and y output x_clk : IN STD_LOGIC; x_rstn : IN STD_LOGIC; x_we_i : IN STD_LOGIC; y_rdy_o : OUT STD_LOGIC; -- input vector x1_i : IN UNSIGNED( data_width-1 downto 0 ); x2_i : IN UNSIGNED( data_width-1 downto 0 ); x3_i : IN UNSIGNED( data_width-1 downto 0 ); -- output vector y1c_o : OUT SIGNED( int_factors_part-1 downto 0 ); y2c_o : OUT SIGNED( int_factors_part-1 downto 0 ); y3c_o : OUT SIGNED( int_factors_part-1 downto 0 ); y1_o : OUT UNSIGNED( data_width-1 downto 0 ); y2_o : OUT UNSIGNED( data_width-1 downto 0 ); y3_o : OUT UNSIGNED( data_width-1 downto 0 ); -- Control Bus (WishBone Bus slave) - set factors and shifts regs for mult3x3 wb_clk_i : IN STD_LOGIC; wb_rst_i : IN STD_LOGIC; wb_stb_i : IN STD_LOGIC; wb_we_i : IN STD_LOGIC; -- data bus wb_adr_i : IN STD_LOGIC_VECTOR (3 downto 0); wb_dat_i : IN STD_LOGIC_VECTOR (f_factors_part+int_factors_part-1 downto 0); wb_dat_o : OUT STD_LOGIC_VECTOR (f_factors_part+int_factors_part-1 downto 0) ); end colorconv_wb; architecture a of colorconv_wb is constant factors_width : integer := (f_factors_part + int_factors_part); -- one sign bit --factors for rgb2ycbcr conversion SIGNAL a11 : signed(factors_width-1 downto 0); SIGNAL a12 : signed(factors_width-1 downto 0); SIGNAL a13 : signed(factors_width-1 downto 0); SIGNAL a21 : signed(factors_width-1 downto 0); SIGNAL a22 : signed(factors_width-1 downto 0); SIGNAL a23 : signed(factors_width-1 downto 0); SIGNAL a31 : signed(factors_width-1 downto 0); SIGNAL a32 : signed(factors_width-1 downto 0); SIGNAL a33 : signed(factors_width-1 downto 0); --shift vectors for rgb2ycbcr conversion SIGNAL b1x : signed(factors_width-1 downto 0); SIGNAL b2x : signed(factors_width-1 downto 0); SIGNAL b3x : signed(factors_width-1 downto 0); SIGNAL b1y : signed(factors_width-1 downto 0); SIGNAL b2y : signed(factors_width-1 downto 0); SIGNAL b3y : signed(factors_width-1 downto 0); COMPONENT colorconv generic( DATA_WIDTH : INTEGER := 8); port ( clk : IN STD_LOGIC; rstn : IN STD_LOGIC; DATA_ENA : IN STD_LOGIC; DOUT_RDY : OUT STD_LOGIC; -- input vector x1 : IN UNSIGNED( data_width-1 downto 0 ); x2 : IN UNSIGNED( data_width-1 downto 0 ); x3 : IN UNSIGNED( data_width-1 downto 0 ); -- matrix factors a11,a12,a13 : IN SIGNED( factors_width-1 downto 0 ); a21,a22,a23 : IN SIGNED( factors_width-1 downto 0 ); a31,a32,a33 : IN SIGNED( factors_width-1 downto 0 ); --shift vectors b1x,b2x,b3x : IN SIGNED( factors_width-1 downto 0 ); b1y,b2y,b3y : IN SIGNED( factors_width-1 downto 0 ); -- output vector y1c : OUT SIGNED( int_factors_part-1 downto 0 ); y2c : OUT SIGNED( int_factors_part-1 downto 0 ); y3c : OUT SIGNED( int_factors_part-1 downto 0 ); y1 : OUT UNSIGNED( data_width-1 downto 0 ); y2 : OUT UNSIGNED( data_width-1 downto 0 ); y3 : OUT UNSIGNED( data_width-1 downto 0 ) ); END COMPONENT ; begin -- WB address decoder process(wb_clk_i, wb_rst_i) begin if wb_rst_i='1' then a11 <= (others=>'0'); a12 <= (others=>'0'); a13 <= (others=>'0'); a21 <= (others=>'0'); a22 <= (others=>'0'); a23 <= (others=>'0'); a31 <= (others=>'0'); a32 <= (others=>'0'); a33 <= (others=>'0'); b1x <= (others=>'0'); b2x <= (others=>'0'); b3x <= (others=>'0'); b1y <= (others=>'0'); b2y <= (others=>'0'); b3y <= (others=>'0'); elsif rising_edge(wb_clk_i) then if wb_stb_i='1' then if wb_we_i='1' then case wb_adr_i is when x"0" => a11 <= SIGNED(wb_dat_i(factors_width-1 downto 0)); when x"1" => a12 <= SIGNED(wb_dat_i(factors_width-1 downto 0)); when x"2" => a13 <= SIGNED(wb_dat_i(factors_width-1 downto 0)); when x"3" => a21 <= SIGNED(wb_dat_i(factors_width-1 downto 0)); when x"4" => a22 <= SIGNED(wb_dat_i(factors_width-1 downto 0)); when x"5" => a23 <= SIGNED(wb_dat_i(factors_width-1 downto 0)); when x"6" => a31 <= SIGNED(wb_dat_i(factors_width-1 downto 0)); when x"7" => a32 <= SIGNED(wb_dat_i(factors_width-1 downto 0)); when x"8" => a33 <= SIGNED(wb_dat_i(factors_width-1 downto 0)); when x"9" => b1x <= SIGNED(wb_dat_i(factors_width-1 downto 0)); when x"A" => b2x <= SIGNED(wb_dat_i(factors_width-1 downto 0)); when x"B" => b3x <= SIGNED(wb_dat_i(factors_width-1 downto 0)); when x"C" => b1y <= SIGNED(wb_dat_i(factors_width-1 downto 0)); when x"D" => b2y <= SIGNED(wb_dat_i(factors_width-1 downto 0)); when x"E" => b3y <= SIGNED(wb_dat_i(factors_width-1 downto 0)); when others => null; end case; else case wb_adr_i is when x"0" => wb_dat_o <= STD_LOGIC_VECTOR(a11); when x"1" => wb_dat_o <= STD_LOGIC_VECTOR(a12); when x"2" => wb_dat_o <= STD_LOGIC_VECTOR(a13); when x"3" => wb_dat_o <= STD_LOGIC_VECTOR(a21); when x"4" => wb_dat_o <= STD_LOGIC_VECTOR(a22); when x"5" => wb_dat_o <= STD_LOGIC_VECTOR(a23); when x"6" => wb_dat_o <= STD_LOGIC_VECTOR(a31); when x"7" => wb_dat_o <= STD_LOGIC_VECTOR(a32); when x"8" => wb_dat_o <= STD_LOGIC_VECTOR(a33); when x"9" => wb_dat_o(factors_width-1 downto 0) <= STD_LOGIC_VECTOR(b1x); when x"A" => wb_dat_o(factors_width-1 downto 0) <= STD_LOGIC_VECTOR(b2x); when x"B" => wb_dat_o(factors_width-1 downto 0) <= STD_LOGIC_VECTOR(b3x); when x"C" => wb_dat_o(factors_width-1 downto 0) <= STD_LOGIC_VECTOR(b1y); when x"D" => wb_dat_o(factors_width-1 downto 0) <= STD_LOGIC_VECTOR(b2y); when x"E" => wb_dat_o(factors_width-1 downto 0) <= STD_LOGIC_VECTOR(b3y); when others => null; end case; end if; end if; end if; end process; converter:colorconv GENERIC MAP( DATA_WIDTH) PORT MAP (x_clk, x_rstn, x_we_i, y_rdy_o, x1_i, x2_i, x3_i, a11, a12, a13, a21, a22, a23, a31, a32, a33, b1x, b2x, b3x, b1y, b2y, b3y, y1c_o, y2c_o, y3c_o, y1_o, y2_o, y3_o ); end a;