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unicore |
---------------------------------------------------------------------
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---- ----
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---- DCT IP core ----
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---- ----
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---- Authors: Anatoliy Sergienko, Volodya Lepeha ----
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---- Company: Unicore Systems http://unicore.co.ua ----
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---- ----
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---- Downloaded from: http://www.opencores.org ----
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---- ----
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---------------------------------------------------------------------
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---- ----
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---- Copyright (C) 2006-2010 Unicore Systems LTD ----
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---- www.unicore.co.ua ----
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---- o.uzenkov@unicore.co.ua ----
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---- ----
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---- This source file may be used and distributed without ----
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---- restriction provided that this copyright statement is not ----
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---- removed from the file and that any derivative work contains ----
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---- the original copyright notice and the associated disclaimer.----
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---- ----
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---- THIS SOFTWARE IS PROVIDED "AS IS" ----
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---- AND ANY EXPRESSED OR IMPLIED WARRANTIES, ----
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---- INCLUDING, BUT NOT LIMITED TO, THE IMPLIED ----
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---- WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT ----
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---- AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. ----
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---- IN NO EVENT SHALL THE UNICORE SYSTEMS OR ITS ----
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---- CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, ----
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---- INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL ----
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---- DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT ----
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---- OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ----
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---- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) ----
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---- HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, ----
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---- WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ----
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---- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING ----
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---- IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, ----
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---- EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ----
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---- ----
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---------------------------------------------------------------------
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library IEEE;
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use IEEE.std_logic_1164.all;
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use IEEE.std_logic_arith.all;
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use IEEE.math_real.all;
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entity BMP_GENERATOR is
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generic( SIGNED_DATA : integer:= 0; -- input data - 0 - unsigned, 1 - signed
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RANDOM:integer:=1 );
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port (
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CLK: in STD_LOGIC;
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RST: in STD_LOGIC;
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START: out STD_LOGIC;
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DATA: out STD_LOGIC_VECTOR (7 downto 0):=x"01"
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);
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end BMP_GENERATOR;
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architecture BMP_GENERATOR of BMP_GENERATOR is
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type TLUT is array(0 to 2047 ) of integer;
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Constant ROMBMP:Tlut:=( (
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| 63 |
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-- data patterns
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108,-25,-127,-72,72,127, 25,-109,
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| 65 |
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108,-25,-127,-72,72,127, 25,-109,
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| 66 |
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108,-25,-127,-72,72,127, 25,-109,
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| 67 |
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108,-25,-127,-72,72,127, 25,-109,
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| 68 |
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108,-25,-127,-72,72,127, 25,-109,
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| 69 |
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108,-25,-127,-72,72,127, 25,-109,
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| 70 |
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108,-25,-127,-72,72,127, 25,-109,
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| 71 |
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108,-25,-127,-72,72,127, 25,-109,
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| 72 |
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| 73 |
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127,127,127,127, 127,127,127,127,
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| 74 |
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52,52,52,52,52,52,52,52,
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| 75 |
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-52,-52,-52,-52,-52,-52,-52,-52,
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| 76 |
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-127,-127,-127,-127,-127,-127,-127,-127,
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| 77 |
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-127,-127,-127,-127,-127,-127,-127,-127,
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| 78 |
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-52,-52,-52,-52,-52,-52,-52,-52,
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| 79 |
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52,52,52,52,52,52,52,52,
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| 80 |
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127,127,127,127, 127,127,127,127,
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| 81 |
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| 82 |
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| 83 |
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127,52,-52,-127,-127,-52,52, 127,
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| 84 |
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127,52,-52,-127,-127,-52,52, 127,
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| 85 |
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127,52,-52,-127,-127,-52,52, 127,
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| 86 |
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127,52,-52,-127,-127,-52,52, 127,
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| 87 |
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127,52,-52,-127,-127,-52,52, 127,
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| 88 |
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127,52,-52,-127,-127,-52,52, 127,
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| 89 |
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127,52,-52,-127,-127,-52,52, 127,
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| 90 |
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127,52,-52,-127,-127,-52,52, 127,
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| 91 |
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| 92 |
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| 93 |
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| 94 |
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52,-127,127,-52,-52,127,-127,52,
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| 95 |
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52,-127,127,-52,-52,127,-127,52,
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| 96 |
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52,-127,127,-52,-52,127,-127,52,
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| 97 |
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52,-127,127,-52,-52,127,-127,52,
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| 98 |
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52,-127,127,-52,-52,127,-127,52,
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| 99 |
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52,-127,127,-52,-52,127,-127,52,
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| 100 |
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52,-127,127,-52,-52,127,-127,52,
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| 101 |
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52,-127,127,-52,-52,127,-127,52,
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| 102 |
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| 103 |
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| 104 |
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127,90,0,-90,-127,-90,0,90,
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| 105 |
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127,90,0,-90,-127,-90,0,90,
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| 106 |
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127,90,0,-90,-127,-90,0,90,
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| 107 |
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127,90,0,-90,-127,-90,0,90,
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| 108 |
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127,90,0,-90,-127,-90,0,90,
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| 109 |
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127,90,0,-90,-127,-90,0,90,
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| 110 |
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127,90,0,-90,-127,-90,0,90,
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| 111 |
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127,90,0,-90,-127,-90,0,90,
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| 112 |
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| 113 |
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| 114 |
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127,-127,127,-127,127,-127,127,-127,
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| 115 |
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127,-127,127,-127,127,-127,127,-127,
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| 116 |
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127,-127,127,-127,127,-127,127,-127,
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| 117 |
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127,-127,127,-127,127,-127,127,-127,
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| 118 |
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127,-127,127,-127,127,-127,127,-127,
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| 119 |
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127,-127,127,-127,127,-127,127,-127,
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| 120 |
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127,-127,127,-127,127,-127,127,-127,
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| 121 |
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127,-127,127,-127,127,-127,127,-127,
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| 122 |
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|
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| 123 |
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127,-117,90,-49,0,-49,90,117,
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| 124 |
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127,-117,90,-49,0,-49,90,117,
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| 125 |
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127,-117,90,-49,0,-49,90,117,
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| 126 |
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127,-117,90,-49,0,-49,90,117,
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| 127 |
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127,-117,90,-49,0,-49,90,117,
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| 128 |
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127,-117,90,-49,0,-49,90,117,
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| 129 |
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127,-117,90,-49,0,-49,90,117,
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| 130 |
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127,-117,90,-49,0,-49,90,117,
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| 131 |
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|
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| 132 |
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0,117,90,-49,-127,-49,90,117,
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| 133 |
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0,117,90,-49,-127,-49,90,117,
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| 134 |
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0,117,90,-49,-127,-49,90,117,
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| 135 |
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0,117,90,-49,-127,-49,90,117,
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| 136 |
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0,117,90,-49,-127,-49,90,117,
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| 137 |
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0,117,90,-49,-127,-49,90,117,
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| 138 |
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0,117,90,-49,-127,-49,90,117,
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| 139 |
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0,117,90,-49,-127,-49,90,117,
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| 140 |
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| 141 |
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| 142 |
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127,-90, 0,90,-127,90,0,-90,
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| 143 |
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127,-90, 0,90,-127,90,0,-90,
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| 144 |
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127,-90, 0,90,-127,90,0,-90,
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| 145 |
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127,-90, 0,90,-127,90,0,-90,
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| 146 |
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127,-90, 0,90,-127,90,0,-90,
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| 147 |
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127,-90, 0,90,-127,90,0,-90,
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| 148 |
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127,-90, 0,90,-127,90,0,-90,
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| 149 |
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127,-90, 0,90,-127,90,0,-90,
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| 150 |
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|
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| 151 |
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127,-90,-90,127,-90,-90,127,-90,
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| 152 |
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127,-90,-90,127,-90,-90,127,-90,
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| 153 |
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127,-90,-90,127,-90,-90,127,-90,
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| 154 |
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127,-90,-90,127,-90,-90,127,-90,
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| 155 |
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127,-90,-90,127,-90,-90,127,-90,
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| 156 |
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127,-90,-90,127,-90,-90,127,-90,
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| 157 |
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127,-90,-90,127,-90,-90,127,-90,
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| 158 |
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127,-90,-90,127,-90,-90,127,-90,
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| 159 |
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|
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| 160 |
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127,90,0,-90,-127,-90,0,90,
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| 161 |
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|
127,90,0,-90,-127,-90,0,90,
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| 162 |
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|
127,90,0,-90,-127,-90,0,90,
|
| 163 |
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127,90,0,-90,-127,-90,0,90,
|
| 164 |
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|
127,90,0,-90,-127,-90,0,90,
|
| 165 |
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|
127,90,0,-90,-127,-90,0,90,
|
| 166 |
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|
127,90,0,-90,-127,-90,0,90,
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| 167 |
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127,90,0,-90,-127,-90,0,90,
|
| 168 |
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|
|
| 169 |
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128,128,128,128, 128,128,128,128,
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| 170 |
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128,128,128,128, 128,128,128,128,
|
| 171 |
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128,128,128,128, 128,128,128,128,
|
| 172 |
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128,128,128,128, 128,128,128,128,
|
| 173 |
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|
128,128,128,128, 128,128,128,128,
|
| 174 |
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|
128,128,128,128, 128,128,128,128,
|
| 175 |
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|
128,128,128,128, 128,128,128,128,
|
| 176 |
|
|
128,128,128,128, 128,128,128,128,
|
| 177 |
|
|
|
| 178 |
|
|
127,127,127,127, 127,127,127,127,
|
| 179 |
|
|
127,127,127,127, 127,127,127,127,
|
| 180 |
|
|
127,127,127,127, 127,127,127,127,
|
| 181 |
|
|
127,127,127,127, 127,127,127,127,
|
| 182 |
|
|
127,127,127,127, 127,127,127,127,
|
| 183 |
|
|
127,127,127,127, 127,127,127,127,
|
| 184 |
|
|
127,127,127,127, 127,127,127,127,
|
| 185 |
|
|
127,127,127,127, 127,127,127,127,
|
| 186 |
|
|
|
| 187 |
|
|
127,127,127,127,127,127,127,127,
|
| 188 |
|
|
117,117,117,117,117,117,117,117,
|
| 189 |
|
|
90,90,90,90, 90,90,90,90,
|
| 190 |
|
|
49,49,49,49,49,49,49,49,
|
| 191 |
|
|
0,0,0,0,0,0,0,0,
|
| 192 |
|
|
49,49,49,49,49,49,49,49,
|
| 193 |
|
|
90,90,90,90, 90,90,90,90,
|
| 194 |
|
|
117,117,117,117,117,117,117,117,
|
| 195 |
|
|
|
| 196 |
|
|
127, 117, 90, 49,00,49,90,117,
|
| 197 |
|
|
127, 117, 90, 49,00,49,90,117,
|
| 198 |
|
|
127, 117, 90, 49,00,49,90,117,
|
| 199 |
|
|
127, 117, 90, 49,00,49,90,117,
|
| 200 |
|
|
127, 117, 90, 49,00,49,90,117,
|
| 201 |
|
|
127, 117, 90, 49,00,49,90,117,
|
| 202 |
|
|
127, 117, 90, 49,00,49,90,117,
|
| 203 |
|
|
127, 117, 90, 49,00,49,90,117,
|
| 204 |
|
|
|
| 205 |
|
|
127,127,127,127,127,127,127,127,
|
| 206 |
|
|
90,90,90,90, 90,90,90,90,
|
| 207 |
|
|
0,0,0,0,0,0,0,0,
|
| 208 |
|
|
-90,-90,-90,-90, -90,-90,-90,-90,
|
| 209 |
|
|
-127,-127,-127,-127,-127,-127,-127,-127,
|
| 210 |
|
|
-90,-90,-90,-90, -90,-90,-90,-90,
|
| 211 |
|
|
0,0,0,0,0,0,0,0,
|
| 212 |
|
|
90,90,90,90, 90,90,90,90,
|
| 213 |
|
|
|
| 214 |
|
|
|
| 215 |
|
|
|
| 216 |
|
|
255, 255, 255, 255, 255, 255, 255, 255,
|
| 217 |
|
|
255, 255, 255, 255, 255, 255, 255, 255,
|
| 218 |
|
|
255, 255, 255, 255, 255, 255, 255, 255,
|
| 219 |
|
|
255, 255, 255, 255, 255, 255, 255, 255,
|
| 220 |
|
|
255, 255, 255, 255, 255, 255, 255, 255,
|
| 221 |
|
|
255, 255, 255, 255, 255, 255, 255, 255,
|
| 222 |
|
|
255, 255, 255, 255, 255, 255, 255, 255,
|
| 223 |
|
|
255, 255, 255, 255, 255, 255, 255, 255,
|
| 224 |
|
|
--
|
| 225 |
|
|
0,255,0,255,0,255,0,255,
|
| 226 |
|
|
0,255,0,255,0,255,0,255,
|
| 227 |
|
|
0,255,0,255,0,255,0,255,
|
| 228 |
|
|
0,255,0,255,0,255,0,255,
|
| 229 |
|
|
0,255,0,255,0,255,0,255,
|
| 230 |
|
|
0,255,0,255,0,255,0,255,
|
| 231 |
|
|
0,255,0,255,0,255,0,255,
|
| 232 |
|
|
0,255,0,255,0,255,0,255,
|
| 233 |
|
|
|
| 234 |
|
|
|
| 235 |
|
|
|
| 236 |
|
|
0,127,0,127, 0,127,0,127,
|
| 237 |
|
|
0,127,0,127, 0,127,0,127,
|
| 238 |
|
|
0,127,0,127, 0,127,0,127,
|
| 239 |
|
|
0,127,0,127, 0,127,0,127,
|
| 240 |
|
|
0,127,0,127, 0,127,0,127,
|
| 241 |
|
|
0,127,0,127, 0,127,0,127,
|
| 242 |
|
|
0,127,0,127, 0,127,0,127,
|
| 243 |
|
|
0,127,0,127,0,127,0,127,
|
| 244 |
|
|
|
| 245 |
|
|
|
| 246 |
|
|
|
| 247 |
|
|
|
| 248 |
|
|
|
| 249 |
|
|
|
| 250 |
|
|
|
| 251 |
|
|
0,0,0,0,0,0,0,0, --3
|
| 252 |
|
|
255,255,255,255,255,255,255,255,
|
| 253 |
|
|
0,0,0,0,0,0,0,0,
|
| 254 |
|
|
255,255,255,255,255,255,255,255,
|
| 255 |
|
|
0,0,0,0,0,0,0,0,
|
| 256 |
|
|
255,255,255,255,255,255,255,255,
|
| 257 |
|
|
0,0,0,0,0,0,0,0,
|
| 258 |
|
|
255,255,255,255,255,255,255,255,
|
| 259 |
|
|
|
| 260 |
|
|
|
| 261 |
|
|
255, 255, 255, 255, 255, 255, 255, 255,
|
| 262 |
|
|
255, 255, 255, 255, 255, 255, 255, 255,
|
| 263 |
|
|
255, 255, 255, 255, 255, 255, 255, 255,
|
| 264 |
|
|
255, 255, 255, 255, 255, 255, 255, 255,
|
| 265 |
|
|
0,0,0,0,0,0,0,0,
|
| 266 |
|
|
0,0,0,0,0,0,0,0,
|
| 267 |
|
|
0,0,0,0,0,0,0,0,
|
| 268 |
|
|
0,0,0,0,0,0,0,0,
|
| 269 |
|
|
|
| 270 |
|
|
|
| 271 |
|
|
183, 160, 94, 153, 194, 163, 132, 165,
|
| 272 |
|
|
183, 153, 116, 176, 187, 166, 130, 169,
|
| 273 |
|
|
179, 168, 171, 182, 179, 165, 131, 167,
|
| 274 |
|
|
177, 177, 179, 177, 179, 165, 131, 167,
|
| 275 |
|
|
178, 178, 179, 176, 182, 164, 130, 171,
|
| 276 |
|
|
179, 180, 180, 179, 183, 169, 132, 169,
|
| 277 |
|
|
179, 179, 180, 182, 183, 170, 129, 172,
|
| 278 |
|
|
180, 179, 181, 179, 181, 170, 130, 169,
|
| 279 |
|
|
|
| 280 |
|
|
0,32,64,96,128, 160,192,224,
|
| 281 |
|
|
224,192,160,128,96, 64,32, 0,
|
| 282 |
|
|
0,32,64,96,128, 160,192,224,
|
| 283 |
|
|
224,192,160,128,96, 64,32, 0,
|
| 284 |
|
|
0,32,64,96,128, 160,192,224,
|
| 285 |
|
|
224,192,160,128,96, 64,32, 0,
|
| 286 |
|
|
0,32,64,96,128, 160,192,224,
|
| 287 |
|
|
224,192,160,128,96, 64,32, 0,
|
| 288 |
|
|
|
| 289 |
|
|
128, 128, 128, 128, 128, 128, 128, 128,
|
| 290 |
|
|
128, 128, 128, 128, 128, 128, 128, 128,
|
| 291 |
|
|
128, 128, 192, 192, 192, 192, 128, 128,
|
| 292 |
|
|
128, 128, 192, 192, 192, 192, 128, 128,
|
| 293 |
|
|
128, 128, 192, 192, 192, 192, 128, 128,
|
| 294 |
|
|
128, 128, 192, 192, 192, 192, 128, 128,
|
| 295 |
|
|
128, 128, 128, 128, 128, 128, 128, 128,
|
| 296 |
|
|
128, 128, 128, 128, 128, 128, 128, 128,
|
| 297 |
|
|
|
| 298 |
|
|
90,100,110,120,130,140,150,160,
|
| 299 |
|
|
91,101,111,121,131,141,151,161,
|
| 300 |
|
|
92,102,112,122,132,142,152,162,
|
| 301 |
|
|
93,103,113,123,133,143,153,163,
|
| 302 |
|
|
90,100,110,120,130,140,150,160,
|
| 303 |
|
|
91,101,111,121,131,141,151,161,
|
| 304 |
|
|
92,102,112,122,132,142,152,162,
|
| 305 |
|
|
93,103,113,123,133,143,153,163,
|
| 306 |
|
|
|
| 307 |
|
|
0,32,64,96,128, 160,192,224,
|
| 308 |
|
|
0,32,64,96,128, 160,192,224,
|
| 309 |
|
|
0,32,64,96,128, 160,192,224,
|
| 310 |
|
|
0,32,64,96,128, 160,192,224,
|
| 311 |
|
|
0,32,64,96,128, 160,192,224,
|
| 312 |
|
|
0,32,64,96,128, 160,192,224,
|
| 313 |
|
|
0,32,64,96,128, 160,192,224,
|
| 314 |
|
|
0,32,64,96,128, 160,192,224,
|
| 315 |
|
|
|
| 316 |
|
|
183, 160, 94, 153, 194, 163, 132, 165,
|
| 317 |
|
|
183, 153, 116, 176, 187, 166, 130, 169,
|
| 318 |
|
|
179, 168, 171, 182, 179, 165, 131, 167,
|
| 319 |
|
|
177, 177, 179, 177, 179, 165, 131, 167,
|
| 320 |
|
|
178, 178, 179, 176, 182, 164, 130, 171,
|
| 321 |
|
|
179, 180, 180, 179, 183, 169, 132, 169,
|
| 322 |
|
|
179, 179, 180, 182, 183, 170, 129, 173,
|
| 323 |
|
|
180, 179, 181, 179, 181, 170, 130, 169,
|
| 324 |
|
|
|
| 325 |
|
|
|
| 326 |
|
|
159, 128, 198, 128, 128, 128, 140, 128,
|
| 327 |
|
|
128, 128, 128, 128, 128, 128, 128, 128,
|
| 328 |
|
|
198, 128, 155, 128, 128, 128, 166, 128,
|
| 329 |
|
|
128, 128, 128, 128, 128, 128, 128, 128,
|
| 330 |
|
|
128, 128, 128, 128, 128, 128, 128, 128,
|
| 331 |
|
|
128, 128, 128, 128, 128, 128, 128, 128,
|
| 332 |
|
|
140, 128, 156, 128, 128, 128, 132, 128,
|
| 333 |
|
|
128, 128, 128, 128, 128, 128, 128, 128,
|
| 334 |
|
|
|
| 335 |
|
|
others=>127
|
| 336 |
|
|
|
| 337 |
|
|
));
|
| 338 |
|
|
|
| 339 |
|
|
signal dr,DATAi: STD_LOGIC_VECTOR (7 downto 0);
|
| 340 |
|
|
signal index: integer range 0 to 2048;
|
| 341 |
|
|
|
| 342 |
|
|
begin
|
| 343 |
|
|
|
| 344 |
|
|
process(clk) --Generator of random images
|
| 345 |
|
|
variable a,b:integer:=333;
|
| 346 |
|
|
variable s:real;
|
| 347 |
|
|
variable d,d1,d2,d3,d4,do:integer:=0;
|
| 348 |
|
|
begin
|
| 349 |
|
|
if clk='1' then
|
| 350 |
|
|
UNIFORM( a,b,s);
|
| 351 |
|
|
d4:=d3;
|
| 352 |
|
|
d3:=d2;
|
| 353 |
|
|
d2:=d1;
|
| 354 |
|
|
d1:=d;
|
| 355 |
|
|
d:=integer(s*2.0**8);
|
| 356 |
|
|
--some LP filtering
|
| 357 |
|
|
do :=(d +4*d1+ 6*d2+4*d3+d4)/16;
|
| 358 |
|
|
dr<=conv_std_logic_vector(do,8) ;
|
| 359 |
|
|
end if;
|
| 360 |
|
|
|
| 361 |
|
|
end process;
|
| 362 |
|
|
|
| 363 |
|
|
|
| 364 |
|
|
DATA_OUTPUT:process(CLK,RST)
|
| 365 |
|
|
|
| 366 |
|
|
variable delay: integer;
|
| 367 |
|
|
variable STARTi: STD_LOGIC;
|
| 368 |
|
|
variable startdel:boolean;
|
| 369 |
|
|
begin
|
| 370 |
|
|
if RST='1' then
|
| 371 |
|
|
startdel:=false;
|
| 372 |
|
|
STARTi:='0';
|
| 373 |
|
|
delay:=0;
|
| 374 |
|
|
elsif CLK='1' and CLK'event and delay<10000 then
|
| 375 |
|
|
delay:=delay+1;
|
| 376 |
|
|
if delay=10 or delay=11 then--or delay=500 or delay= 501 or delay=800 or delay= 801 then
|
| 377 |
|
|
STARTi:='1' ;
|
| 378 |
|
|
elsif delay=12 then --or delay= 502 or delay= 802 then
|
| 379 |
|
|
STARTi:='0';
|
| 380 |
|
|
startdel:=true;
|
| 381 |
|
|
end if;
|
| 382 |
|
|
end if;
|
| 383 |
|
|
|
| 384 |
|
|
if RST='1' then
|
| 385 |
|
|
index<=0;
|
| 386 |
|
|
elsif CLK='1' and CLK'event and startdel then
|
| 387 |
|
|
if RANDOM=0 then
|
| 388 |
|
|
|
| 389 |
|
|
DATAi<=CONV_STD_LOGIC_VECTOR(INTEGER(ROMBMP(index)),8) after 7 ns;
|
| 390 |
|
|
index<=(index+1) mod 2048;
|
| 391 |
|
|
else
|
| 392 |
|
|
DATAi<=dr;
|
| 393 |
|
|
end if;
|
| 394 |
|
|
end if;
|
| 395 |
|
|
START<=STARTi after 5 ns;
|
| 396 |
|
|
|
| 397 |
|
|
end process;
|
| 398 |
|
|
|
| 399 |
|
|
DATA<= unsigned(DATAi)-UNSIGNED(X"80") when SIGNED_DATA=0 else DATAi;
|
| 400 |
|
|
|
| 401 |
|
|
end BMP_GENERATOR;
|
