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eexuke |
//--------------------------------------------------------------------------------------------------
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// Design : nova
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// Author(s) : Ke Xu
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// Email : eexuke@yahoo.com
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// File : Inter_pred_LPE.v
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// Generated : Oct 11, 2005
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// Copyright (C) 2008 Ke Xu
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//-------------------------------------------------------------------------------------------------
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// Description
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// Processing Element for Inter prediction of Luma pixels
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//-------------------------------------------------------------------------------------------------
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// synopsys translate_off
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`include "timescale.v"
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// synopsys translate_on
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`include "nova_defines.v"
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module Inter_pred_LPE (clk,reset_n,pos_FracL,IsInterLuma,
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blk4x4_inter_calculate_counter,
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Inter_H_window_0_0,Inter_H_window_1_0,Inter_H_window_2_0,Inter_H_window_3_0,Inter_H_window_4_0,Inter_H_window_5_0,
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Inter_H_window_0_1,Inter_H_window_1_1,Inter_H_window_2_1,Inter_H_window_3_1,Inter_H_window_4_1,Inter_H_window_5_1,
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Inter_H_window_0_2,Inter_H_window_1_2,Inter_H_window_2_2,Inter_H_window_3_2,Inter_H_window_4_2,Inter_H_window_5_2,
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Inter_H_window_0_3,Inter_H_window_1_3,Inter_H_window_2_3,Inter_H_window_3_3,Inter_H_window_4_3,Inter_H_window_5_3,
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Inter_H_window_0_4,Inter_H_window_1_4,Inter_H_window_2_4,Inter_H_window_3_4,Inter_H_window_4_4,Inter_H_window_5_4,
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Inter_H_window_0_5,Inter_H_window_1_5,Inter_H_window_2_5,Inter_H_window_3_5,Inter_H_window_4_5,Inter_H_window_5_5,
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Inter_H_window_0_6,Inter_H_window_1_6,Inter_H_window_2_6,Inter_H_window_3_6,Inter_H_window_4_6,Inter_H_window_5_6,
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Inter_H_window_0_7,Inter_H_window_1_7,Inter_H_window_2_7,Inter_H_window_3_7,Inter_H_window_4_7,Inter_H_window_5_7,
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Inter_H_window_0_8,Inter_H_window_1_8,Inter_H_window_2_8,Inter_H_window_3_8,Inter_H_window_4_8,Inter_H_window_5_8,
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Inter_V_window_0,Inter_V_window_1,Inter_V_window_2,Inter_V_window_3,Inter_V_window_4,
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Inter_V_window_5,Inter_V_window_6,Inter_V_window_7,Inter_V_window_8,
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Inter_bi_window_0,Inter_bi_window_1,Inter_bi_window_2,Inter_bi_window_3,
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LPE0_out,LPE1_out,LPE2_out,LPE3_out
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);
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input clk,reset_n;
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input [3:0] pos_FracL;
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input IsInterLuma;
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input [3:0] blk4x4_inter_calculate_counter;
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input [7:0] Inter_H_window_0_0,Inter_H_window_1_0,Inter_H_window_2_0,Inter_H_window_3_0,Inter_H_window_4_0,Inter_H_window_5_0;
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input [7:0] Inter_H_window_0_1,Inter_H_window_1_1,Inter_H_window_2_1,Inter_H_window_3_1,Inter_H_window_4_1,Inter_H_window_5_1;
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input [7:0] Inter_H_window_0_2,Inter_H_window_1_2,Inter_H_window_2_2,Inter_H_window_3_2,Inter_H_window_4_2,Inter_H_window_5_2;
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input [7:0] Inter_H_window_0_3,Inter_H_window_1_3,Inter_H_window_2_3,Inter_H_window_3_3,Inter_H_window_4_3,Inter_H_window_5_3;
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input [7:0] Inter_H_window_0_4,Inter_H_window_1_4,Inter_H_window_2_4,Inter_H_window_3_4,Inter_H_window_4_4,Inter_H_window_5_4;
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input [7:0] Inter_H_window_0_5,Inter_H_window_1_5,Inter_H_window_2_5,Inter_H_window_3_5,Inter_H_window_4_5,Inter_H_window_5_5;
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input [7:0] Inter_H_window_0_6,Inter_H_window_1_6,Inter_H_window_2_6,Inter_H_window_3_6,Inter_H_window_4_6,Inter_H_window_5_6;
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input [7:0] Inter_H_window_0_7,Inter_H_window_1_7,Inter_H_window_2_7,Inter_H_window_3_7,Inter_H_window_4_7,Inter_H_window_5_7;
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input [7:0] Inter_H_window_0_8,Inter_H_window_1_8,Inter_H_window_2_8,Inter_H_window_3_8,Inter_H_window_4_8,Inter_H_window_5_8;
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input [7:0] Inter_V_window_0,Inter_V_window_1,Inter_V_window_2,Inter_V_window_3,Inter_V_window_4;
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input [7:0] Inter_V_window_5,Inter_V_window_6,Inter_V_window_7,Inter_V_window_8;
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input [7:0] Inter_bi_window_0,Inter_bi_window_1,Inter_bi_window_2,Inter_bi_window_3;
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output [7:0] LPE0_out,LPE1_out,LPE2_out,LPE3_out;
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reg [7:0] LPE0_out,LPE1_out,LPE2_out,LPE3_out;
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reg [14:0] b0_raw_reg,b1_raw_reg,b2_raw_reg,b3_raw_reg,b4_raw_reg,b5_raw_reg,b6_raw_reg,b7_raw_reg,b8_raw_reg;
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reg [7:0] b0_reg,b1_reg,b2_reg,b3_reg;
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reg [7:0] h0_reg,h1_reg,h2_reg,h3_reg;
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//------------------------
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//Vertical 6tap filter
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//------------------------
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wire Is_V_jfqik; //Is_V_jfqik: whether read from original [7:0] integer pixels and round as +16 >> 5 or read from b_raw[14:0] and round as +512 >> 10
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wire [14:0] V_6tapfilter0_A,V_6tapfilter0_B,V_6tapfilter0_C,V_6tapfilter0_D,V_6tapfilter0_E,V_6tapfilter0_F;
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wire [14:0] V_6tapfilter1_A,V_6tapfilter1_B,V_6tapfilter1_C,V_6tapfilter1_D,V_6tapfilter1_E,V_6tapfilter1_F;
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wire [14:0] V_6tapfilter2_A,V_6tapfilter2_B,V_6tapfilter2_C,V_6tapfilter2_D,V_6tapfilter2_E,V_6tapfilter2_F;
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wire [14:0] V_6tapfilter3_A,V_6tapfilter3_B,V_6tapfilter3_C,V_6tapfilter3_D,V_6tapfilter3_E,V_6tapfilter3_F;
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wire [7:0] V_6tapfilter0_round_out,V_6tapfilter1_round_out,V_6tapfilter2_round_out,V_6tapfilter3_round_out;
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filterV_6tap V_6tapfilter0 (
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.A(V_6tapfilter0_A),
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.B(V_6tapfilter0_B),
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.C(V_6tapfilter0_C),
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.D(V_6tapfilter0_D),
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.E(V_6tapfilter0_E),
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.F(V_6tapfilter0_F),
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.Is_jfqik(Is_V_jfqik),
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.round_out(V_6tapfilter0_round_out)
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);
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filterV_6tap V_6tapfilter1 (
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.A(V_6tapfilter1_A),
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.B(V_6tapfilter1_B),
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.C(V_6tapfilter1_C),
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.D(V_6tapfilter1_D),
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.E(V_6tapfilter1_E),
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.F(V_6tapfilter1_F),
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.Is_jfqik(Is_V_jfqik),
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.round_out(V_6tapfilter1_round_out)
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);
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filterV_6tap V_6tapfilter2 (
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.A(V_6tapfilter2_A),
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.B(V_6tapfilter2_B),
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.C(V_6tapfilter2_C),
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.D(V_6tapfilter2_D),
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.E(V_6tapfilter2_E),
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.F(V_6tapfilter2_F),
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.Is_jfqik(Is_V_jfqik),
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.round_out(V_6tapfilter2_round_out)
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);
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filterV_6tap V_6tapfilter3 (
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.A(V_6tapfilter3_A),
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.B(V_6tapfilter3_B),
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.C(V_6tapfilter3_C),
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.D(V_6tapfilter3_D),
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.E(V_6tapfilter3_E),
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.F(V_6tapfilter3_F),
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.Is_jfqik(Is_V_jfqik),
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.round_out(V_6tapfilter3_round_out)
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);
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assign Is_V_jfqik = (
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(pos_FracL == `pos_j && (
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blk4x4_inter_calculate_counter == 4'd4 || blk4x4_inter_calculate_counter == 4'd3 ||
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blk4x4_inter_calculate_counter == 4'd2 || blk4x4_inter_calculate_counter == 4'd1)) ||
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((pos_FracL == `pos_f || pos_FracL == `pos_q) && (
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blk4x4_inter_calculate_counter == 4'd4 || blk4x4_inter_calculate_counter == 4'd3 ||
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blk4x4_inter_calculate_counter == 4'd2 || blk4x4_inter_calculate_counter == 4'd1)) ||
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((pos_FracL == `pos_i || pos_FracL == `pos_k) && (
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blk4x4_inter_calculate_counter == 4'd7 || blk4x4_inter_calculate_counter == 4'd5 ||
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blk4x4_inter_calculate_counter == 4'd3 || blk4x4_inter_calculate_counter == 4'd1)))? 1'b1:1'b0;
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assign V_6tapfilter0_A = (Is_V_jfqik)? b0_raw_reg:{7'b0,Inter_V_window_0};
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assign V_6tapfilter0_B = (Is_V_jfqik)? b1_raw_reg:{7'b0,Inter_V_window_1};
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assign V_6tapfilter0_C = (Is_V_jfqik)? b2_raw_reg:{7'b0,Inter_V_window_2};
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assign V_6tapfilter0_D = (Is_V_jfqik)? b3_raw_reg:{7'b0,Inter_V_window_3};
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assign V_6tapfilter0_E = (Is_V_jfqik)? b4_raw_reg:{7'b0,Inter_V_window_4};
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assign V_6tapfilter0_F = (Is_V_jfqik)? b5_raw_reg:{7'b0,Inter_V_window_5};
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assign V_6tapfilter1_A = (Is_V_jfqik)? b1_raw_reg:{7'b0,Inter_V_window_1};
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assign V_6tapfilter1_B = (Is_V_jfqik)? b2_raw_reg:{7'b0,Inter_V_window_2};
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assign V_6tapfilter1_C = (Is_V_jfqik)? b3_raw_reg:{7'b0,Inter_V_window_3};
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assign V_6tapfilter1_D = (Is_V_jfqik)? b4_raw_reg:{7'b0,Inter_V_window_4};
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assign V_6tapfilter1_E = (Is_V_jfqik)? b5_raw_reg:{7'b0,Inter_V_window_5};
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assign V_6tapfilter1_F = (Is_V_jfqik)? b6_raw_reg:{7'b0,Inter_V_window_6};
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assign V_6tapfilter2_A = (Is_V_jfqik)? b2_raw_reg:{7'b0,Inter_V_window_2};
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assign V_6tapfilter2_B = (Is_V_jfqik)? b3_raw_reg:{7'b0,Inter_V_window_3};
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assign V_6tapfilter2_C = (Is_V_jfqik)? b4_raw_reg:{7'b0,Inter_V_window_4};
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assign V_6tapfilter2_D = (Is_V_jfqik)? b5_raw_reg:{7'b0,Inter_V_window_5};
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assign V_6tapfilter2_E = (Is_V_jfqik)? b6_raw_reg:{7'b0,Inter_V_window_6};
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assign V_6tapfilter2_F = (Is_V_jfqik)? b7_raw_reg:{7'b0,Inter_V_window_7};
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assign V_6tapfilter3_A = (Is_V_jfqik)? b3_raw_reg:{7'b0,Inter_V_window_3};
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assign V_6tapfilter3_B = (Is_V_jfqik)? b4_raw_reg:{7'b0,Inter_V_window_4};
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assign V_6tapfilter3_C = (Is_V_jfqik)? b5_raw_reg:{7'b0,Inter_V_window_5};
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assign V_6tapfilter3_D = (Is_V_jfqik)? b6_raw_reg:{7'b0,Inter_V_window_6};
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assign V_6tapfilter3_E = (Is_V_jfqik)? b7_raw_reg:{7'b0,Inter_V_window_7};
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assign V_6tapfilter3_F = (Is_V_jfqik)? b8_raw_reg:{7'b0,Inter_V_window_8};
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//------------------------
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//Horizontal 6tap filter
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//------------------------
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wire H_need_round;
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wire [14:0] H_6tapfilter0_raw_out;
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wire [14:0] H_6tapfilter1_raw_out;
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wire [14:0] H_6tapfilter2_raw_out;
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wire [14:0] H_6tapfilter3_raw_out;
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wire [14:0] H_6tapfilter4_raw_out;
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wire [14:0] H_6tapfilter5_raw_out;
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wire [14:0] H_6tapfilter6_raw_out;
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wire [14:0] H_6tapfilter7_raw_out;
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wire [14:0] H_6tapfilter8_raw_out;
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wire [7:0] H_6tapfilter0_round_out;
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wire [7:0] H_6tapfilter1_round_out;
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wire [7:0] H_6tapfilter2_round_out;
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wire [7:0] H_6tapfilter3_round_out;
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wire [7:0] H_6tapfilter4_round_out;
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wire [7:0] H_6tapfilter5_round_out;
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wire [7:0] H_6tapfilter6_round_out;
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wire [7:0] H_6tapfilter7_round_out;
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wire [7:0] H_6tapfilter8_round_out;
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assign H_need_round = (blk4x4_inter_calculate_counter != 0 && pos_FracL != `pos_Int && pos_FracL != `pos_i
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&& pos_FracL != `pos_j && pos_FracL != `pos_k && pos_FracL != `pos_d && pos_FracL != `pos_n);
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filterH_6tap H_6tapfilter0 (
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.A(Inter_H_window_0_0),
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.B(Inter_H_window_1_0),
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.C(Inter_H_window_2_0),
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.D(Inter_H_window_3_0),
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.E(Inter_H_window_4_0),
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.F(Inter_H_window_5_0),
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.H_need_round(1'b0),
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.raw_out(H_6tapfilter0_raw_out),
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.round_out(H_6tapfilter0_round_out)
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);
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filterH_6tap H_6tapfilter1 (
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.A(Inter_H_window_0_1),
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.B(Inter_H_window_1_1),
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.C(Inter_H_window_2_1),
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.D(Inter_H_window_3_1),
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.E(Inter_H_window_4_1),
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.F(Inter_H_window_5_1),
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.H_need_round(1'b0),
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.raw_out(H_6tapfilter1_raw_out),
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.round_out(H_6tapfilter1_round_out)
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);
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filterH_6tap H_6tapfilter2 (
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.A(Inter_H_window_0_2),
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.B(Inter_H_window_1_2),
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.C(Inter_H_window_2_2),
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.D(Inter_H_window_3_2),
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.E(Inter_H_window_4_2),
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.F(Inter_H_window_5_2),
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.H_need_round(H_need_round),
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.raw_out(H_6tapfilter2_raw_out),
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.round_out(H_6tapfilter2_round_out)
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);
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filterH_6tap H_6tapfilter3 (
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.A(Inter_H_window_0_3),
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.B(Inter_H_window_1_3),
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.C(Inter_H_window_2_3),
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.D(Inter_H_window_3_3),
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.E(Inter_H_window_4_3),
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.F(Inter_H_window_5_3),
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.H_need_round(H_need_round),
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.raw_out(H_6tapfilter3_raw_out),
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|
|
.round_out(H_6tapfilter3_round_out)
|
| 217 |
|
|
);
|
| 218 |
|
|
filterH_6tap H_6tapfilter4 (
|
| 219 |
|
|
.A(Inter_H_window_0_4),
|
| 220 |
|
|
.B(Inter_H_window_1_4),
|
| 221 |
|
|
.C(Inter_H_window_2_4),
|
| 222 |
|
|
.D(Inter_H_window_3_4),
|
| 223 |
|
|
.E(Inter_H_window_4_4),
|
| 224 |
|
|
.F(Inter_H_window_5_4),
|
| 225 |
|
|
.H_need_round(H_need_round),
|
| 226 |
|
|
.raw_out(H_6tapfilter4_raw_out),
|
| 227 |
|
|
.round_out(H_6tapfilter4_round_out)
|
| 228 |
|
|
);
|
| 229 |
|
|
filterH_6tap H_6tapfilter5 (
|
| 230 |
|
|
.A(Inter_H_window_0_5),
|
| 231 |
|
|
.B(Inter_H_window_1_5),
|
| 232 |
|
|
.C(Inter_H_window_2_5),
|
| 233 |
|
|
.D(Inter_H_window_3_5),
|
| 234 |
|
|
.E(Inter_H_window_4_5),
|
| 235 |
|
|
.F(Inter_H_window_5_5),
|
| 236 |
|
|
.H_need_round(H_need_round),
|
| 237 |
|
|
.raw_out(H_6tapfilter5_raw_out),
|
| 238 |
|
|
.round_out(H_6tapfilter5_round_out)
|
| 239 |
|
|
);
|
| 240 |
|
|
filterH_6tap H_6tapfilter6 (
|
| 241 |
|
|
.A(Inter_H_window_0_6),
|
| 242 |
|
|
.B(Inter_H_window_1_6),
|
| 243 |
|
|
.C(Inter_H_window_2_6),
|
| 244 |
|
|
.D(Inter_H_window_3_6),
|
| 245 |
|
|
.E(Inter_H_window_4_6),
|
| 246 |
|
|
.F(Inter_H_window_5_6),
|
| 247 |
|
|
.H_need_round(H_need_round),
|
| 248 |
|
|
.raw_out(H_6tapfilter6_raw_out),
|
| 249 |
|
|
.round_out(H_6tapfilter6_round_out)
|
| 250 |
|
|
);
|
| 251 |
|
|
filterH_6tap H_6tapfilter7 (
|
| 252 |
|
|
.A(Inter_H_window_0_7),
|
| 253 |
|
|
.B(Inter_H_window_1_7),
|
| 254 |
|
|
.C(Inter_H_window_2_7),
|
| 255 |
|
|
.D(Inter_H_window_3_7),
|
| 256 |
|
|
.E(Inter_H_window_4_7),
|
| 257 |
|
|
.F(Inter_H_window_5_7),
|
| 258 |
|
|
.H_need_round(1'b0),
|
| 259 |
|
|
.raw_out(H_6tapfilter7_raw_out),
|
| 260 |
|
|
.round_out(H_6tapfilter7_round_out)
|
| 261 |
|
|
);
|
| 262 |
|
|
filterH_6tap H_6tapfilter8 (
|
| 263 |
|
|
.A(Inter_H_window_0_8),
|
| 264 |
|
|
.B(Inter_H_window_1_8),
|
| 265 |
|
|
.C(Inter_H_window_2_8),
|
| 266 |
|
|
.D(Inter_H_window_3_8),
|
| 267 |
|
|
.E(Inter_H_window_4_8),
|
| 268 |
|
|
.F(Inter_H_window_5_8),
|
| 269 |
|
|
.H_need_round(1'b0),
|
| 270 |
|
|
.raw_out(H_6tapfilter8_raw_out),
|
| 271 |
|
|
.round_out(H_6tapfilter8_round_out)
|
| 272 |
|
|
);
|
| 273 |
|
|
|
| 274 |
|
|
//--------------------
|
| 275 |
|
|
//bilinear filter
|
| 276 |
|
|
//--------------------
|
| 277 |
|
|
reg [7:0] bilinear0_A,bilinear0_B;
|
| 278 |
|
|
reg [7:0] bilinear1_A,bilinear1_B;
|
| 279 |
|
|
reg [7:0] bilinear2_A,bilinear2_B;
|
| 280 |
|
|
reg [7:0] bilinear3_A,bilinear3_B;
|
| 281 |
|
|
wire [7:0] bilinear0_out;
|
| 282 |
|
|
wire [7:0] bilinear1_out;
|
| 283 |
|
|
wire [7:0] bilinear2_out;
|
| 284 |
|
|
wire [7:0] bilinear3_out;
|
| 285 |
|
|
bilinear bilinear0 (
|
| 286 |
|
|
.A(bilinear0_A),
|
| 287 |
|
|
.B(bilinear0_B),
|
| 288 |
|
|
.bilinear_out(bilinear0_out)
|
| 289 |
|
|
);
|
| 290 |
|
|
bilinear bilinear1 (
|
| 291 |
|
|
.A(bilinear1_A),
|
| 292 |
|
|
.B(bilinear1_B),
|
| 293 |
|
|
.bilinear_out(bilinear1_out)
|
| 294 |
|
|
);
|
| 295 |
|
|
bilinear bilinear2 (
|
| 296 |
|
|
.A(bilinear2_A),
|
| 297 |
|
|
.B(bilinear2_B),
|
| 298 |
|
|
.bilinear_out(bilinear2_out)
|
| 299 |
|
|
);
|
| 300 |
|
|
bilinear bilinear3 (
|
| 301 |
|
|
.A(bilinear3_A),
|
| 302 |
|
|
.B(bilinear3_B),
|
| 303 |
|
|
.bilinear_out(bilinear3_out)
|
| 304 |
|
|
);
|
| 305 |
|
|
always @ (IsInterLuma or pos_FracL or blk4x4_inter_calculate_counter
|
| 306 |
|
|
or Inter_bi_window_0 or Inter_bi_window_1 or Inter_bi_window_2 or Inter_bi_window_3
|
| 307 |
|
|
or H_6tapfilter2_round_out or H_6tapfilter3_round_out or H_6tapfilter4_round_out or H_6tapfilter5_round_out
|
| 308 |
|
|
or V_6tapfilter0_round_out or V_6tapfilter1_round_out or V_6tapfilter2_round_out or V_6tapfilter3_round_out
|
| 309 |
|
|
or b0_reg or b1_reg or b2_reg or b3_reg or h0_reg or h1_reg or h2_reg or h3_reg)
|
| 310 |
|
|
if (IsInterLuma)
|
| 311 |
|
|
case ({pos_FracL})
|
| 312 |
|
|
`pos_a,`pos_c:
|
| 313 |
|
|
if (blk4x4_inter_calculate_counter != 4'd0)
|
| 314 |
|
|
begin
|
| 315 |
|
|
bilinear0_A <= Inter_bi_window_0; bilinear0_B <= H_6tapfilter2_round_out;
|
| 316 |
|
|
bilinear1_A <= Inter_bi_window_1; bilinear1_B <= H_6tapfilter3_round_out;
|
| 317 |
|
|
bilinear2_A <= Inter_bi_window_2; bilinear2_B <= H_6tapfilter4_round_out;
|
| 318 |
|
|
bilinear3_A <= Inter_bi_window_3; bilinear3_B <= H_6tapfilter5_round_out;
|
| 319 |
|
|
end
|
| 320 |
|
|
else
|
| 321 |
|
|
begin
|
| 322 |
|
|
bilinear0_A <= 0; bilinear0_B <= 0; bilinear1_A <= 0; bilinear1_B <= 0;
|
| 323 |
|
|
bilinear2_A <= 0; bilinear2_B <= 0; bilinear3_A <= 0; bilinear3_B <= 0;
|
| 324 |
|
|
end
|
| 325 |
|
|
`pos_d,`pos_n:
|
| 326 |
|
|
if (blk4x4_inter_calculate_counter != 4'd0)
|
| 327 |
|
|
begin
|
| 328 |
|
|
bilinear0_A <= Inter_bi_window_0; bilinear0_B <= V_6tapfilter0_round_out;
|
| 329 |
|
|
bilinear1_A <= Inter_bi_window_1; bilinear1_B <= V_6tapfilter1_round_out;
|
| 330 |
|
|
bilinear2_A <= Inter_bi_window_2; bilinear2_B <= V_6tapfilter2_round_out;
|
| 331 |
|
|
bilinear3_A <= Inter_bi_window_3; bilinear3_B <= V_6tapfilter3_round_out;
|
| 332 |
|
|
end
|
| 333 |
|
|
else
|
| 334 |
|
|
begin
|
| 335 |
|
|
bilinear0_A <= 0; bilinear0_B <= 0; bilinear1_A <= 0; bilinear1_B <= 0;
|
| 336 |
|
|
bilinear2_A <= 0; bilinear2_B <= 0; bilinear3_A <= 0; bilinear3_B <= 0;
|
| 337 |
|
|
end
|
| 338 |
|
|
`pos_e,`pos_g,`pos_p,`pos_r:
|
| 339 |
|
|
if (blk4x4_inter_calculate_counter != 4'd0)
|
| 340 |
|
|
begin
|
| 341 |
|
|
bilinear0_A <= H_6tapfilter2_round_out; bilinear0_B <= V_6tapfilter0_round_out;
|
| 342 |
|
|
bilinear1_A <= H_6tapfilter3_round_out; bilinear1_B <= V_6tapfilter1_round_out;
|
| 343 |
|
|
bilinear2_A <= H_6tapfilter4_round_out; bilinear2_B <= V_6tapfilter2_round_out;
|
| 344 |
|
|
bilinear3_A <= H_6tapfilter5_round_out; bilinear3_B <= V_6tapfilter3_round_out;
|
| 345 |
|
|
end
|
| 346 |
|
|
else
|
| 347 |
|
|
begin
|
| 348 |
|
|
bilinear0_A <= 0; bilinear0_B <= 0; bilinear1_A <= 0; bilinear1_B <= 0;
|
| 349 |
|
|
bilinear2_A <= 0; bilinear2_B <= 0; bilinear3_A <= 0; bilinear3_B <= 0;
|
| 350 |
|
|
end
|
| 351 |
|
|
`pos_i,`pos_k:
|
| 352 |
|
|
if (blk4x4_inter_calculate_counter == 4'd7 || blk4x4_inter_calculate_counter == 4'd5 ||
|
| 353 |
|
|
blk4x4_inter_calculate_counter == 4'd3 || blk4x4_inter_calculate_counter == 4'd1)
|
| 354 |
|
|
begin
|
| 355 |
|
|
bilinear0_A <= h0_reg; bilinear0_B <= V_6tapfilter0_round_out;
|
| 356 |
|
|
bilinear1_A <= h1_reg; bilinear1_B <= V_6tapfilter1_round_out;
|
| 357 |
|
|
bilinear2_A <= h2_reg; bilinear2_B <= V_6tapfilter2_round_out;
|
| 358 |
|
|
bilinear3_A <= h3_reg; bilinear3_B <= V_6tapfilter3_round_out;
|
| 359 |
|
|
end
|
| 360 |
|
|
else
|
| 361 |
|
|
begin
|
| 362 |
|
|
bilinear0_A <= 0; bilinear0_B <= 0; bilinear1_A <= 0; bilinear1_B <= 0;
|
| 363 |
|
|
bilinear2_A <= 0; bilinear2_B <= 0; bilinear3_A <= 0; bilinear3_B <= 0;
|
| 364 |
|
|
end
|
| 365 |
|
|
`pos_f,`pos_q:
|
| 366 |
|
|
if (blk4x4_inter_calculate_counter != 4'd5 && blk4x4_inter_calculate_counter != 4'd0)
|
| 367 |
|
|
begin
|
| 368 |
|
|
bilinear0_A <= b0_reg; bilinear0_B <= V_6tapfilter0_round_out;
|
| 369 |
|
|
bilinear1_A <= b1_reg; bilinear1_B <= V_6tapfilter1_round_out;
|
| 370 |
|
|
bilinear2_A <= b2_reg; bilinear2_B <= V_6tapfilter2_round_out;
|
| 371 |
|
|
bilinear3_A <= b3_reg; bilinear3_B <= V_6tapfilter3_round_out;
|
| 372 |
|
|
end
|
| 373 |
|
|
else
|
| 374 |
|
|
begin
|
| 375 |
|
|
bilinear0_A <= 0; bilinear0_B <= 0; bilinear1_A <= 0; bilinear1_B <= 0;
|
| 376 |
|
|
bilinear2_A <= 0; bilinear2_B <= 0; bilinear3_A <= 0; bilinear3_B <= 0;
|
| 377 |
|
|
end
|
| 378 |
|
|
default:
|
| 379 |
|
|
begin
|
| 380 |
|
|
bilinear0_A <= 0; bilinear0_B <= 0; bilinear1_A <= 0; bilinear1_B <= 0;
|
| 381 |
|
|
bilinear2_A <= 0; bilinear2_B <= 0; bilinear3_A <= 0; bilinear3_B <= 0;
|
| 382 |
|
|
end
|
| 383 |
|
|
endcase
|
| 384 |
|
|
else
|
| 385 |
|
|
begin
|
| 386 |
|
|
bilinear0_A <= 0; bilinear0_B <= 0; bilinear1_A <= 0; bilinear1_B <= 0;
|
| 387 |
|
|
bilinear2_A <= 0; bilinear2_B <= 0; bilinear3_A <= 0; bilinear3_B <= 0;
|
| 388 |
|
|
end
|
| 389 |
|
|
|
| 390 |
|
|
//------------------------------------------------------------------------------------------
|
| 391 |
|
|
//only "b","h" and "j" of half-pel positions need to be stored to predict quater-pel samples
|
| 392 |
|
|
//------------------------------------------------------------------------------------------
|
| 393 |
|
|
|
| 394 |
|
|
//b0_raw_reg0 ~ b8_raw_reg:update after j/f/q/i/k horizontal filtering
|
| 395 |
|
|
wire b_raw_reg_ena;
|
| 396 |
|
|
assign b_raw_reg_ena = (IsInterLuma &&
|
| 397 |
|
|
((pos_FracL == `pos_j && blk4x4_inter_calculate_counter != 4'd1 && blk4x4_inter_calculate_counter != 4'd0) ||
|
| 398 |
|
|
((pos_FracL == `pos_f || pos_FracL == `pos_q) && (blk4x4_inter_calculate_counter == 4'd5 ||
|
| 399 |
|
|
blk4x4_inter_calculate_counter == 4'd4 ||
|
| 400 |
|
|
blk4x4_inter_calculate_counter == 4'd3 ||
|
| 401 |
|
|
blk4x4_inter_calculate_counter == 4'd2)) ||
|
| 402 |
|
|
((pos_FracL == `pos_i || pos_FracL == `pos_k) && (blk4x4_inter_calculate_counter == 4'd8 ||
|
| 403 |
|
|
blk4x4_inter_calculate_counter == 4'd6 ||
|
| 404 |
|
|
blk4x4_inter_calculate_counter == 4'd4 ||
|
| 405 |
|
|
blk4x4_inter_calculate_counter == 4'd2))));
|
| 406 |
|
|
|
| 407 |
|
|
always @ (posedge clk)
|
| 408 |
|
|
if (reset_n == 1'b0)
|
| 409 |
|
|
begin
|
| 410 |
|
|
b0_raw_reg <= 0; b1_raw_reg <= 0; b2_raw_reg <= 0; b3_raw_reg <= 0; b4_raw_reg <= 0;
|
| 411 |
|
|
b5_raw_reg <= 0; b6_raw_reg <= 0; b7_raw_reg <= 0; b8_raw_reg <= 0;
|
| 412 |
|
|
end
|
| 413 |
|
|
else if (b_raw_reg_ena)
|
| 414 |
|
|
begin
|
| 415 |
|
|
b0_raw_reg <= H_6tapfilter0_raw_out;b1_raw_reg <= H_6tapfilter1_raw_out;b2_raw_reg <= H_6tapfilter2_raw_out;
|
| 416 |
|
|
b3_raw_reg <= H_6tapfilter3_raw_out;b4_raw_reg <= H_6tapfilter4_raw_out;b5_raw_reg <= H_6tapfilter5_raw_out;
|
| 417 |
|
|
b6_raw_reg <= H_6tapfilter6_raw_out;b7_raw_reg <= H_6tapfilter7_raw_out;b8_raw_reg <= H_6tapfilter8_raw_out;
|
| 418 |
|
|
end
|
| 419 |
|
|
|
| 420 |
|
|
//b0_reg ~ b3_reg:update for decoding f,q
|
| 421 |
|
|
//Note:position q needs "b" of next line
|
| 422 |
|
|
wire b_reg_ena;
|
| 423 |
|
|
assign b_reg_ena = (IsInterLuma && ((pos_FracL == `pos_f || pos_FracL == `pos_q) && (blk4x4_inter_calculate_counter == 4'd5 ||
|
| 424 |
|
|
blk4x4_inter_calculate_counter == 4'd4 || blk4x4_inter_calculate_counter == 4'd3 || blk4x4_inter_calculate_counter == 4'd2)));
|
| 425 |
|
|
|
| 426 |
|
|
always @ (posedge clk)
|
| 427 |
|
|
if (reset_n == 1'b0)
|
| 428 |
|
|
begin
|
| 429 |
|
|
b0_reg <= 0; b1_reg <= 0; b2_reg <= 0; b3_reg <= 0;
|
| 430 |
|
|
end
|
| 431 |
|
|
else if (b_reg_ena)
|
| 432 |
|
|
begin
|
| 433 |
|
|
if (pos_FracL == `pos_q)
|
| 434 |
|
|
begin
|
| 435 |
|
|
b0_reg <= H_6tapfilter3_round_out; b1_reg <= H_6tapfilter4_round_out;
|
| 436 |
|
|
b2_reg <= H_6tapfilter5_round_out; b3_reg <= H_6tapfilter6_round_out;
|
| 437 |
|
|
end
|
| 438 |
|
|
else
|
| 439 |
|
|
begin
|
| 440 |
|
|
b0_reg <= H_6tapfilter2_round_out; b1_reg <= H_6tapfilter3_round_out;
|
| 441 |
|
|
b2_reg <= H_6tapfilter4_round_out; b3_reg <= H_6tapfilter5_round_out;
|
| 442 |
|
|
end
|
| 443 |
|
|
end
|
| 444 |
|
|
|
| 445 |
|
|
//h0_reg ~ h3_reg:update for decoding i,k
|
| 446 |
|
|
wire h_reg_ena;
|
| 447 |
|
|
assign h_reg_ena = (IsInterLuma && ((pos_FracL == `pos_i || pos_FracL == `pos_k) && (blk4x4_inter_calculate_counter == 4'd8 ||
|
| 448 |
|
|
blk4x4_inter_calculate_counter == 4'd6 || blk4x4_inter_calculate_counter == 4'd4 || blk4x4_inter_calculate_counter == 4'd2)));
|
| 449 |
|
|
|
| 450 |
|
|
always @ (posedge clk)
|
| 451 |
|
|
if (reset_n == 1'b0)
|
| 452 |
|
|
begin
|
| 453 |
|
|
h0_reg <= 0; h1_reg <= 0; h2_reg <= 0; h3_reg <= 0;
|
| 454 |
|
|
end
|
| 455 |
|
|
else if (h_reg_ena)
|
| 456 |
|
|
begin
|
| 457 |
|
|
h0_reg <= V_6tapfilter0_round_out; h1_reg <= V_6tapfilter1_round_out;
|
| 458 |
|
|
h2_reg <= V_6tapfilter2_round_out; h3_reg <= V_6tapfilter3_round_out;
|
| 459 |
|
|
end
|
| 460 |
|
|
//------------------------------------------------------------------------------------------
|
| 461 |
|
|
//LPE output
|
| 462 |
|
|
//------------------------------------------------------------------------------------------
|
| 463 |
|
|
always @ (IsInterLuma or pos_FracL or blk4x4_inter_calculate_counter
|
| 464 |
|
|
or V_6tapfilter0_round_out or V_6tapfilter1_round_out or V_6tapfilter2_round_out or V_6tapfilter3_round_out
|
| 465 |
|
|
or H_6tapfilter2_round_out or H_6tapfilter3_round_out or H_6tapfilter4_round_out or H_6tapfilter5_round_out
|
| 466 |
|
|
or bilinear0_out or bilinear1_out or bilinear2_out or bilinear3_out)
|
| 467 |
|
|
if (IsInterLuma)
|
| 468 |
|
|
case (pos_FracL)
|
| 469 |
|
|
//pos_Int: directly bypassed by Inter_pix_copy0 ~ Inter_pix_copy3
|
| 470 |
|
|
`pos_b:
|
| 471 |
|
|
if (blk4x4_inter_calculate_counter != 0)
|
| 472 |
|
|
begin
|
| 473 |
|
|
LPE0_out <= H_6tapfilter2_round_out; LPE1_out <= H_6tapfilter3_round_out;
|
| 474 |
|
|
LPE2_out <= H_6tapfilter4_round_out; LPE3_out <= H_6tapfilter5_round_out;
|
| 475 |
|
|
end
|
| 476 |
|
|
else
|
| 477 |
|
|
begin LPE0_out <= 0; LPE1_out <= 0;LPE2_out <= 0; LPE3_out <= 0;end
|
| 478 |
|
|
`pos_h:
|
| 479 |
|
|
if (blk4x4_inter_calculate_counter != 0)
|
| 480 |
|
|
begin
|
| 481 |
|
|
LPE0_out <= V_6tapfilter0_round_out; LPE1_out <= V_6tapfilter1_round_out;
|
| 482 |
|
|
LPE2_out <= V_6tapfilter2_round_out; LPE3_out <= V_6tapfilter3_round_out;
|
| 483 |
|
|
end
|
| 484 |
|
|
else
|
| 485 |
|
|
begin LPE0_out <= 0; LPE1_out <= 0;LPE2_out <= 0; LPE3_out <= 0;end
|
| 486 |
|
|
`pos_j:
|
| 487 |
|
|
if (blk4x4_inter_calculate_counter != 4'd5 && blk4x4_inter_calculate_counter != 0)
|
| 488 |
|
|
begin
|
| 489 |
|
|
LPE0_out <= V_6tapfilter0_round_out; LPE1_out <= V_6tapfilter1_round_out;
|
| 490 |
|
|
LPE2_out <= V_6tapfilter2_round_out; LPE3_out <= V_6tapfilter3_round_out;
|
| 491 |
|
|
end
|
| 492 |
|
|
else
|
| 493 |
|
|
begin LPE0_out <= 0; LPE1_out <= 0;LPE2_out <= 0; LPE3_out <= 0;end
|
| 494 |
|
|
`pos_a,`pos_c,`pos_d,`pos_e,`pos_g,`pos_n,`pos_p,`pos_r,`pos_f,`pos_q:
|
| 495 |
|
|
if (blk4x4_inter_calculate_counter == 4'd4 || blk4x4_inter_calculate_counter == 4'd3 ||
|
| 496 |
|
|
blk4x4_inter_calculate_counter == 4'd2 || blk4x4_inter_calculate_counter == 4'd1)
|
| 497 |
|
|
begin
|
| 498 |
|
|
LPE0_out <= bilinear0_out; LPE1_out <= bilinear1_out;
|
| 499 |
|
|
LPE2_out <= bilinear2_out; LPE3_out <= bilinear3_out;
|
| 500 |
|
|
end
|
| 501 |
|
|
else
|
| 502 |
|
|
begin LPE0_out <= 0; LPE1_out <= 0;LPE2_out <= 0; LPE3_out <= 0;end
|
| 503 |
|
|
`pos_i,`pos_k:
|
| 504 |
|
|
if (blk4x4_inter_calculate_counter == 4'd7 || blk4x4_inter_calculate_counter == 4'd5 ||
|
| 505 |
|
|
blk4x4_inter_calculate_counter == 4'd3 || blk4x4_inter_calculate_counter == 4'd1)
|
| 506 |
|
|
begin
|
| 507 |
|
|
LPE0_out <= bilinear0_out; LPE1_out <= bilinear1_out;
|
| 508 |
|
|
LPE2_out <= bilinear2_out; LPE3_out <= bilinear3_out;
|
| 509 |
|
|
end
|
| 510 |
|
|
else
|
| 511 |
|
|
begin LPE0_out <= 0; LPE1_out <= 0;LPE2_out <= 0; LPE3_out <= 0;end
|
| 512 |
|
|
default:
|
| 513 |
|
|
begin LPE0_out <= 0; LPE1_out <= 0;LPE2_out <= 0; LPE3_out <= 0;end
|
| 514 |
|
|
endcase
|
| 515 |
|
|
else
|
| 516 |
|
|
begin LPE0_out <= 0; LPE1_out <= 0;LPE2_out <= 0; LPE3_out <= 0;end
|
| 517 |
|
|
|
| 518 |
|
|
endmodule
|
| 519 |
|
|
|
| 520 |
|
|
module filterH_6tap(A,B,C,D,E,F,H_need_round,raw_out,round_out);
|
| 521 |
|
|
input [7:0] A,B,C,D,E,F;
|
| 522 |
|
|
input H_need_round;
|
| 523 |
|
|
output [14:0] raw_out; //always output
|
| 524 |
|
|
output [7:0] round_out;
|
| 525 |
|
|
|
| 526 |
|
|
wire [8:0] sum_AF;
|
| 527 |
|
|
wire [8:0] sum_BE;
|
| 528 |
|
|
wire [8:0] sum_CD;
|
| 529 |
|
|
wire [10:0] sum_4CD;
|
| 530 |
|
|
wire [11:0] sum_1;
|
| 531 |
|
|
wire [12:0] sum_2;
|
| 532 |
|
|
wire [13:0] sum_3;
|
| 533 |
|
|
wire [14:0] sum_round;
|
| 534 |
|
|
wire [9:0] round_tmp;
|
| 535 |
|
|
|
| 536 |
|
|
assign sum_AF = A + F;
|
| 537 |
|
|
assign sum_BE = B + E;
|
| 538 |
|
|
assign sum_CD = C + D;
|
| 539 |
|
|
assign sum_4CD = {sum_CD,2'b0};
|
| 540 |
|
|
assign sum_1 = {1'b0,sum_4CD} + {3'b111,~sum_BE} + 1;
|
| 541 |
|
|
assign sum_2 = {4'b0,sum_AF} + {sum_1[11],sum_1};
|
| 542 |
|
|
assign sum_3 = {sum_1,2'b0};
|
| 543 |
|
|
assign raw_out = {{2{sum_2[12]}},sum_2} + {sum_3[13],sum_3};
|
| 544 |
|
|
//round
|
| 545 |
|
|
assign sum_round = (H_need_round)? (raw_out + 16):0;
|
| 546 |
|
|
assign round_tmp = (H_need_round)? sum_round[14:5]:0;
|
| 547 |
|
|
assign round_out = (round_tmp[9])? 8'd0:((round_tmp[8])? 8'd255:round_tmp[7:0]);
|
| 548 |
|
|
endmodule
|
| 549 |
|
|
|
| 550 |
|
|
module filterV_6tap(A,B,C,D,E,F,Is_jfqik,round_out);
|
| 551 |
|
|
input [14:0] A,B,C,D,E,F;
|
| 552 |
|
|
input Is_jfqik;
|
| 553 |
|
|
output [7:0] round_out;
|
| 554 |
|
|
|
| 555 |
|
|
wire [15:0] sum_AF;
|
| 556 |
|
|
wire [15:0] sum_BE;
|
| 557 |
|
|
wire [15:0] sum_CD;
|
| 558 |
|
|
wire [17:0] sum_4CD;
|
| 559 |
|
|
wire [17:0] sum_1;
|
| 560 |
|
|
wire [17:0] sum_2;
|
| 561 |
|
|
wire [19:0] sum_3;
|
| 562 |
|
|
wire [19:0] raw_out;
|
| 563 |
|
|
|
| 564 |
|
|
wire [19:0] sum_round;
|
| 565 |
|
|
wire [9:0] round_tmp;
|
| 566 |
|
|
|
| 567 |
|
|
assign sum_AF = {A[14],A} + {F[14],F};
|
| 568 |
|
|
assign sum_BE = {B[14],B} + {E[14],E};
|
| 569 |
|
|
assign sum_CD = {C[14],C} + {D[14],D};
|
| 570 |
|
|
assign sum_4CD = {sum_CD,2'b0};
|
| 571 |
|
|
assign sum_1 = sum_4CD + {~sum_BE[15],~sum_BE[15],~sum_BE} + 1;
|
| 572 |
|
|
assign sum_2 = {{2{sum_AF[15]}},sum_AF} + sum_1;
|
| 573 |
|
|
assign sum_3 = {sum_1,2'b0};
|
| 574 |
|
|
assign raw_out = {{2{sum_2[17]}},sum_2} + sum_3;
|
| 575 |
|
|
//round
|
| 576 |
|
|
assign sum_round = (Is_jfqik)? (raw_out + 512):(raw_out + 16);
|
| 577 |
|
|
assign round_tmp = (Is_jfqik)? sum_round[19:10]:sum_round[14:5];
|
| 578 |
|
|
assign round_out = (round_tmp[9])? 8'd0:((round_tmp[8])? 8'd255:round_tmp[7:0]);
|
| 579 |
|
|
endmodule
|
| 580 |
|
|
|
| 581 |
|
|
module bilinear (A,B,bilinear_out);
|
| 582 |
|
|
input [7:0] A,B;
|
| 583 |
|
|
output [7:0] bilinear_out;
|
| 584 |
|
|
wire [8:0] sum_AB;
|
| 585 |
|
|
|
| 586 |
|
|
assign sum_AB = A + B + 1; //here A and B should NOT extend as {A[7],A}
|
| 587 |
|
|
assign bilinear_out = sum_AB[8:1];
|
| 588 |
|
|
endmodule
|
| 589 |
|
|
|
| 590 |
|
|
|
| 591 |
|
|
|
