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https://github.com/retroSoC/retroSoC.git
synced 2026-11-06 14:55:14 +00:00
maksyuki
39bc1c84b4
- Implemented tests for the deterministic baseline JPEG reference model in , covering encoding, decoding, quality scaling, and error handling. - Created to ensure synchronization between RTL and C register constants for JPEG. - Updated to reflect changes in the number of APB interfaces and IRQ mappings, ensuring the topology generates correct bindings.
97 lines
2.9 KiB
Systemverilog
97 lines
2.9 KiB
Systemverilog
`timescale 1ns / 1ps
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module jpeg_header_writer_tb;
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logic clk = 1'b0;
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logic rst_n = 1'b0;
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logic start;
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logic [511:0] luma_quant;
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logic [511:0] chroma_quant;
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logic [ 7:0] output_byte;
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logic output_valid;
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logic output_ready;
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logic done;
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logic error_flag;
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logic [ 7:0] expected [0:1023];
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logic [ 7:0] luma_values [ 0:63];
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logic [ 7:0] chroma_values [ 0:63];
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integer expected_size;
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integer output_index;
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string header_path;
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string luma_path;
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string chroma_path;
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always #5 clk = ~clk;
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jpeg_header_writer u_dut (
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.clk_i (clk),
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.rst_n_i (rst_n),
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.start_i (start),
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.width_i (16'd17),
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.height_i (16'd15),
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.sampling_i (2'd3),
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.restart_interval_i(16'd1),
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.luma_quant_i (luma_quant),
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.chroma_quant_i (chroma_quant),
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.start_ready_o (),
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.byte_o (output_byte),
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.byte_valid_o (output_valid),
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.byte_ready_i (output_ready),
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.done_o (done),
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.error_o (error_flag)
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);
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always @(posedge clk) begin
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if (rst_n && output_valid && output_ready) begin
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if (output_byte != expected[output_index]) begin
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$fatal(1, "header byte mismatch at %0d: got=%h expected=%h", output_index, output_byte,
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expected[output_index]);
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end
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output_index <= output_index + 1;
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end
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end
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initial begin
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if (!$value$plusargs(
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"header_hex=%s", header_path
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) || !$value$plusargs(
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"luma_hex=%s", luma_path
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) || !$value$plusargs(
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"chroma_hex=%s", chroma_path
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) || !$value$plusargs(
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"header_size=%d", expected_size
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)) begin
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$fatal(1, "header writer test requires header and quantization plusargs");
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end
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$readmemh(header_path, expected);
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$readmemh(luma_path, luma_values);
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$readmemh(chroma_path, chroma_values);
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luma_quant = '0;
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chroma_quant = '0;
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for (int index = 0; index < 64; index++) begin
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luma_quant[index*8+:8] = luma_values[index];
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chroma_quant[index*8+:8] = chroma_values[index];
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end
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start = 1'b0;
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output_ready = 1'b0;
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output_index = 0;
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repeat (3) @(posedge clk);
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rst_n = 1'b1;
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@(negedge clk);
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start = 1'b1;
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@(negedge clk);
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start = 1'b0;
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repeat (2) @(negedge clk);
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if (!output_valid || output_byte != 8'hff) begin
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$fatal(1, "header output changed under backpressure");
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end
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output_ready = 1'b1;
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while (!done) @(negedge clk);
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if (error_flag || output_index != expected_size) begin
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$fatal(1, "header completion mismatch: err=%0d bytes=%0d expected=%0d", error_flag,
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output_index, expected_size);
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end
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$display("JPEG header writer tests passed");
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$finish;
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end
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endmodule
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