📄 ccfactors_pkg.vhd
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-- ***** 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@opencores.org -------- - Vyacheslav Gulyaev, vv_gulyaev@opencores.org ---- ---- ------------------------------------------------------------------------------ -------- 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@mail.ru)-------------------------------------------------------------------------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⌨️ 快捷键说明
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