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https://github.com/marqs85/ossc
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SL Multiplication:
- Hybrid value based on Y (Y calculated according to YCoCg appr.) - Use 8bit input as p-factor
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borti4938
parent
3154a83847
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b10d7f3762
@ -44,7 +44,7 @@ module lpm_mult_4_sl (
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input clock;
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input [7:0] dataa;
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input [3:0] datab;
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input [7:0] datab;
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output [7:0] result;
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wire [7:0] sub_wire0;
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@ -65,7 +65,7 @@ module lpm_mult_4_sl (
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lpm_mult_component.lpm_representation = "UNSIGNED",
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lpm_mult_component.lpm_type = "LPM_MULT",
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lpm_mult_component.lpm_widtha = 8,
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lpm_mult_component.lpm_widthb = 4,
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lpm_mult_component.lpm_widthb = 8,
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lpm_mult_component.lpm_widthp = 8;
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@ -85,7 +85,7 @@ endmodule
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// Retrieval info: PRIVATE: USE_MULT NUMERIC "1"
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// Retrieval info: PRIVATE: ValidConstant NUMERIC "0"
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// Retrieval info: PRIVATE: WidthA NUMERIC "8"
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// Retrieval info: PRIVATE: WidthB NUMERIC "4"
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// Retrieval info: PRIVATE: WidthB NUMERIC "8"
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// Retrieval info: PRIVATE: WidthP NUMERIC "8"
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// Retrieval info: PRIVATE: aclr NUMERIC "0"
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// Retrieval info: PRIVATE: clken NUMERIC "0"
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@ -97,15 +97,15 @@ endmodule
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// Retrieval info: CONSTANT: LPM_REPRESENTATION STRING "UNSIGNED"
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// Retrieval info: CONSTANT: LPM_TYPE STRING "LPM_MULT"
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// Retrieval info: CONSTANT: LPM_WIDTHA NUMERIC "8"
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// Retrieval info: CONSTANT: LPM_WIDTHB NUMERIC "4"
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// Retrieval info: CONSTANT: LPM_WIDTHB NUMERIC "8"
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// Retrieval info: CONSTANT: LPM_WIDTHP NUMERIC "8"
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// Retrieval info: USED_PORT: clock 0 0 0 0 INPUT NODEFVAL "clock"
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// Retrieval info: USED_PORT: dataa 0 0 8 0 INPUT NODEFVAL "dataa[7..0]"
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// Retrieval info: USED_PORT: datab 0 0 4 0 INPUT NODEFVAL "datab[3..0]"
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// Retrieval info: USED_PORT: datab 0 0 8 0 INPUT NODEFVAL "datab[7..0]"
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// Retrieval info: USED_PORT: result 0 0 8 0 OUTPUT NODEFVAL "result[7..0]"
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// Retrieval info: CONNECT: @clock 0 0 0 0 clock 0 0 0 0
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// Retrieval info: CONNECT: @dataa 0 0 8 0 dataa 0 0 8 0
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// Retrieval info: CONNECT: @datab 0 0 4 0 datab 0 0 4 0
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// Retrieval info: CONNECT: @datab 0 0 8 0 datab 0 0 8 0
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// Retrieval info: CONNECT: result 0 0 8 0 @result 0 0 8 0
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// Retrieval info: GEN_FILE: TYPE_NORMAL lpm_mult_4_sl.v TRUE
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// Retrieval info: GEN_FILE: TYPE_NORMAL lpm_mult_4_sl.inc FALSE
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@ -39,7 +39,7 @@ module lpm_mult_4_sl (
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input clock;
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input [7:0] dataa;
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input [3:0] datab;
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input [7:0] datab;
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output [7:0] result;
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endmodule
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@ -58,7 +58,7 @@ endmodule
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// Retrieval info: PRIVATE: USE_MULT NUMERIC "1"
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// Retrieval info: PRIVATE: ValidConstant NUMERIC "0"
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// Retrieval info: PRIVATE: WidthA NUMERIC "8"
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// Retrieval info: PRIVATE: WidthB NUMERIC "4"
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// Retrieval info: PRIVATE: WidthB NUMERIC "8"
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// Retrieval info: PRIVATE: WidthP NUMERIC "8"
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// Retrieval info: PRIVATE: aclr NUMERIC "0"
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// Retrieval info: PRIVATE: clken NUMERIC "0"
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@ -70,15 +70,15 @@ endmodule
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// Retrieval info: CONSTANT: LPM_REPRESENTATION STRING "UNSIGNED"
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// Retrieval info: CONSTANT: LPM_TYPE STRING "LPM_MULT"
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// Retrieval info: CONSTANT: LPM_WIDTHA NUMERIC "8"
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// Retrieval info: CONSTANT: LPM_WIDTHB NUMERIC "4"
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// Retrieval info: CONSTANT: LPM_WIDTHB NUMERIC "8"
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// Retrieval info: CONSTANT: LPM_WIDTHP NUMERIC "8"
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// Retrieval info: USED_PORT: clock 0 0 0 0 INPUT NODEFVAL "clock"
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// Retrieval info: USED_PORT: dataa 0 0 8 0 INPUT NODEFVAL "dataa[7..0]"
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// Retrieval info: USED_PORT: datab 0 0 4 0 INPUT NODEFVAL "datab[3..0]"
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// Retrieval info: USED_PORT: datab 0 0 8 0 INPUT NODEFVAL "datab[7..0]"
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// Retrieval info: USED_PORT: result 0 0 8 0 OUTPUT NODEFVAL "result[7..0]"
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// Retrieval info: CONNECT: @clock 0 0 0 0 clock 0 0 0 0
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// Retrieval info: CONNECT: @dataa 0 0 8 0 dataa 0 0 8 0
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// Retrieval info: CONNECT: @datab 0 0 4 0 datab 0 0 4 0
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// Retrieval info: CONNECT: @datab 0 0 8 0 datab 0 0 8 0
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// Retrieval info: CONNECT: result 0 0 8 0 @result 0 0 8 0
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// Retrieval info: GEN_FILE: TYPE_NORMAL lpm_mult_4_sl.v TRUE
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// Retrieval info: GEN_FILE: TYPE_NORMAL lpm_mult_4_sl.inc FALSE
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@ -185,34 +185,35 @@ assign pclk_lock = {pclk_2x_lock, pclk_3x_lock};
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//Scanline generation
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reg [7:0] R_sl_hybrid_ref, G_sl_hybrid_ref, B_sl_hybrid_ref;
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reg [7:0] R_sl_str, G_sl_str, B_sl_str;
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reg [8:0] Y_rb_tmp;
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reg [9:0] Y;
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reg [7:0] Y_sl_hybrid_ref, R_sl_hybrid_ref, G_sl_hybrid_ref, B_sl_hybrid_ref;
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reg [7:0] Y_sl_str, R_sl_str, G_sl_str, B_sl_str;
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reg [7:0] R_sl_sub, G_sl_sub, B_sl_sub;
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wire [7:0] R_sl_mult, G_sl_mult, B_sl_mult;
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lpm_mult_4_sl R_sl_mult_u
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(
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.clock(pclk_act),
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.dataa(R_pp7),
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.datab(~R_sl_str[7:4]),
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.datab(~Y_sl_str),
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.result(R_sl_mult)
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);
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lpm_mult_4_sl G_sl_mult_u
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(
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.clock(pclk_act),
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.dataa(G_pp7),
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.datab(~G_sl_str[7:4]),
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.datab(~Y_sl_str),
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.result(G_sl_mult)
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);
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lpm_mult_4_sl B_sl_mult_u
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(
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.clock(pclk_act),
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.dataa(B_pp7),
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.datab(~B_sl_str[7:4]),
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.datab(~Y_sl_str),
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.result(B_sl_mult)
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);
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reg [7:0] R_sl_lin, G_sl_lin, B_sl_lin;
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reg draw_sl;
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//LT box / border generation
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@ -506,6 +507,8 @@ begin
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R_prev_pp4 <= R_prev_pp3;
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G_prev_pp4 <= G_prev_pp3;
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B_prev_pp4 <= B_prev_pp3;
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// calculate Y step 1/2
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Y_rb_tmp <= {1'b0,R_pp3} + {1'b0,B_pp3};
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// Reverse LPF step2
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R_diff_pp4 <= (R_diff_pp3 * X_REV_LPF_STR);
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G_diff_pp4 <= (G_diff_pp3 * X_REV_LPF_STR);
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@ -514,6 +517,8 @@ begin
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R_pp5 <= apply_reverse_lpf(X_REV_LPF_ENABLE, R_pp4, R_prev_pp4, R_diff_pp4);
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G_pp5 <= apply_reverse_lpf(X_REV_LPF_ENABLE, G_pp4, G_prev_pp4, G_diff_pp4);
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B_pp5 <= apply_reverse_lpf(X_REV_LPF_ENABLE, B_pp4, B_prev_pp4, B_diff_pp4);
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// calculate Y step 2/2
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Y <= {1'b0,Y_rb_tmp} + {1'b0,G_pp4,1'b0};
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HSYNC_pp5 <= HSYNC_pp4;
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VSYNC_pp5 <= VSYNC_pp4;
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DE_pp5 <= DE_pp4;
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@ -525,7 +530,11 @@ begin
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R_pp6 <= R_pp5;
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G_pp6 <= G_pp5;
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B_pp6 <= B_pp5;
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// modify scanline strength for linear method step 1
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// modify scanline strength for linear method step 1/2
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Y_sl_hybrid_ref <= (X_SCANLINESTR_HYBR_CONTR == `SCANLINES_HYBR_CONTR_HIGH) ? (Y[9:2] - (Y[9:2] >> 3)) :
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(X_SCANLINESTR_HYBR_CONTR == `SCANLINES_HYBR_CONTR_MED) ? ((Y[9:2] >> 1) + (Y[9:2] >> 3)) :
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(X_SCANLINESTR_HYBR_CONTR == `SCANLINES_HYBR_CONTR_LOW) ? (Y[9:2] >> 1) :
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8'h0;
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R_sl_hybrid_ref <= (X_SCANLINESTR_HYBR_CONTR == `SCANLINES_HYBR_CONTR_HIGH) ? (R_pp5 - (R_pp5 >> 3)) :
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(X_SCANLINESTR_HYBR_CONTR == `SCANLINES_HYBR_CONTR_MED) ? ((R_pp5 >> 1) + (R_pp5 >> 3)) :
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(X_SCANLINESTR_HYBR_CONTR == `SCANLINES_HYBR_CONTR_LOW) ? (R_pp5 >> 1) :
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@ -549,7 +558,8 @@ begin
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R_pp7 <= R_pp6;
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G_pp7 <= G_pp6;
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B_pp7 <= B_pp6;
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// modify scanline strength for linear method step 2
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// modify scanline strength for linear method step 2/2
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Y_sl_str <= (X_SCANLINESTR > Y_sl_hybrid_ref) ? X_SCANLINESTR - Y_sl_hybrid_ref : 8'h0;
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R_sl_str <= (X_SCANLINESTR > R_sl_hybrid_ref) ? X_SCANLINESTR - R_sl_hybrid_ref : 8'h0;
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G_sl_str <= (X_SCANLINESTR > G_sl_hybrid_ref) ? X_SCANLINESTR - G_sl_hybrid_ref : 8'h0;
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B_sl_str <= (X_SCANLINESTR > B_sl_hybrid_ref) ? X_SCANLINESTR - B_sl_hybrid_ref : 8'h0;
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@ -564,10 +574,11 @@ begin
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R_pp8 <= R_pp7;
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G_pp8 <= G_pp7;
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B_pp8 <= B_pp7;
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// R_sl_mult, G_sl_mult and B_sl_mult are registered output of IP blocks (line 191-213)
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R_sl_lin <= (R_pp7 > R_sl_str) ? (R_pp7-R_sl_str) : 8'h00;
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G_sl_lin <= (G_pp7 > G_sl_str) ? (G_pp7-G_sl_str) : 8'h00;
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B_sl_lin <= (B_pp7 > B_sl_str) ? (B_pp7-B_sl_str) : 8'h00;
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// R_sl_mult, G_sl_mult and B_sl_mult are registered output of IP blocks (line 194-215)
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// perform subtraction
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R_sl_sub <= (R_pp7 > R_sl_str) ? (R_pp7-R_sl_str) : 8'h00;
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G_sl_sub <= (G_pp7 > G_sl_str) ? (G_pp7-G_sl_str) : 8'h00;
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B_sl_sub <= (B_pp7 > B_sl_str) ? (B_pp7-B_sl_str) : 8'h00;
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draw_sl <= |{(V_SCANLINEMODE == `SCANLINES_H) && (V_SCANLINEID & (5'h1<<line_id_pp7)),
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(V_SCANLINEMODE == `SCANLINES_V) && (5'h0 == col_id_pp7),
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(V_SCANLINEMODE == `SCANLINES_ALT) && (V_SCANLINEID & (5'h1<<(line_id_pp7^FID_1x)))};
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@ -577,9 +588,9 @@ begin
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border_enable_pp8 <= border_enable_pp7;
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lt_box_enable_pp8 <= lt_box_enable_pp7;
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R_pp9 <= draw_sl ? (X_SCANLINESTR_METHOD ? R_sl_lin : R_sl_mult) : R_pp8;
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G_pp9 <= draw_sl ? (X_SCANLINESTR_METHOD ? G_sl_lin : G_sl_mult) : G_pp8;
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B_pp9 <= draw_sl ? (X_SCANLINESTR_METHOD ? B_sl_lin : B_sl_mult) : B_pp8;
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R_pp9 <= draw_sl ? (X_SCANLINESTR_METHOD ? R_sl_sub : R_sl_mult) : R_pp8;
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G_pp9 <= draw_sl ? (X_SCANLINESTR_METHOD ? G_sl_sub : G_sl_mult) : G_pp8;
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B_pp9 <= draw_sl ? (X_SCANLINESTR_METHOD ? B_sl_sub : B_sl_mult) : B_pp8;
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HSYNC_pp9 <= HSYNC_pp8;
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VSYNC_pp9 <= VSYNC_pp8;
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DE_pp9 <= DE_pp8;
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