maybe optimize the GreyWorld?

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SikongJueluo 2024-07-09 21:55:32 +08:00
parent 2543d624d2
commit 8503f8b3bc
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1 changed files with 41 additions and 15 deletions

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@ -23,19 +23,21 @@ module GreyWorld #(
// Gain: red = 0.803881, green = 0.885894, blue = 1.594308
input wire enable,
input wire [8:0] flame_rate,
input wire [31:0] white_gain[3]
input wire [15:0] white_gain[3]
);
reg [2:0] state, nextState;
reg [2:0] state, nextState, calState;
localparam reg [2:0] READ_DATA = 0;
localparam reg [2:0] CALC_DATA = 1;
localparam reg [2:0] SEND_DATA = 2;
reg [8:0] cnt_flame;
reg [31:0] red_total, green_total, blue_total, r_white_gain[3];
reg [31:0] red_total, green_total, blue_total;
reg [39:0] r_white_gain[3];
reg [31:0] data_cal[3], data_cache[3];
reg [31:0] cnt_pexels;
wire [39:0] average;
reg [31:0] cnt_pexels;
reg [39:0] average;
reg isCal;
always @(posedge clk) begin
if (reset) state <= READ_DATA;
@ -45,16 +47,17 @@ module GreyWorld #(
always @(*) begin
case (state)
READ_DATA: nextState = in_en ? CALC_DATA : READ_DATA;
CALC_DATA: nextState = SEND_DATA;
CALC_DATA: nextState = isCal ? CALC_DATA : SEND_DATA;
SEND_DATA: nextState = in_receive ? READ_DATA : SEND_DATA;
default: nextState = READ_DATA;
endcase
end
assign out_ready = (!in_en && state == READ_DATA && !reset) ? 1 : 0;
assign out_ready = (!in_en && state == READ_DATA && !reset) ? 1 : 0;
assign out_receive = (in_en && state == READ_DATA && !reset) ? 1 : 0;
assign average = (({8'b0, red_total } + {8'b0, green_total } + {8'b0, blue_total }) << 8) / 3 ;
// assign average = (({8'b0, red_total } + {8'b0, green_total } + {8'b0, blue_total }) << 8) / 3 ;
// assign isCal = cnt_pexels >= IM_SIZE && cnt_flame == flame_rate;
always @(posedge clk) begin
if (reset) begin
@ -63,6 +66,8 @@ module GreyWorld #(
blue_total <= 0;
cnt_flame <= flame_rate;
cnt_pexels <= 0;
calState <= 4;
r_white_gain[0] <= white_gain[0];
r_white_gain[1] <= white_gain[1];
r_white_gain[2] <= white_gain[2];
@ -94,20 +99,41 @@ module GreyWorld #(
cnt_pexels <= 0;
if (cnt_flame < flame_rate) cnt_flame <= cnt_flame + 1;
else cnt_flame <= 0;
if (cnt_pexels >= IM_SIZE && cnt_flame == flame_rate) isCal <= 1;
end
end
end
CALC_DATA: begin
if (cnt_pexels >= IM_SIZE && cnt_flame == flame_rate) begin
r_white_gain[0] <= { ( average / {8'b0, red_total } ) }[31:0];
r_white_gain[1] <= { ( average / {8'b0, green_total } ) }[31:0];
r_white_gain[2] <= { ( average / {8'b0, blue_total } ) }[31:0];
if (calState == 0) begin
average <= {8'b0, red_total } + {8'b0, green_total };
calState <= 1;
end
else if (calState == 1) begin
average <= average + {8'b0, blue_total};
calState <= 2;
end
else if (calState == 2) begin
average <= average << 8;
calState <= 3;
end
else if (calState == 3) begin
r_white_gain[0] <= average / {8'b0, red_total};
r_white_gain[1] <= average / {8'b0, green_total};
r_white_gain[2] <= average / {8'b0, blue_total};
isCal <= 0;
calState <= 4;
end
else if (calState == 4) begin
data_cal[0] <= (data_cache[0] * r_white_gain[0][31:0]);
data_cal[1] <= (data_cache[1] * r_white_gain[1][31:0]);
data_cal[2] <= (data_cache[2] * r_white_gain[2][31:0]);
calState <= 5;
end
else begin
calState <= isCal ? 0 : 4;
end
data_cal[0] <= (data_cache[0] * r_white_gain[0][31:0]);
data_cal[1] <= (data_cache[1] * r_white_gain[1][31:0]);
data_cal[2] <= (data_cache[2] * r_white_gain[2][31:0]);
end
SEND_DATA: begin