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Adding filter module using PV
- Adding Makefile for compilation - Adding filter module using PV model only - Adding TB for filter module using PV model only
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‎modules/filter/Makefile‎

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# Adding stb lib for image handling
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INCDIR_STB=lib/stb
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INCLUDES_STB := $(wildcard $(INCDIR_STB)/*.h)
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# Include common Makefile
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include ../Makefile
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# Include stb lib for compilation
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INCLUDES += INCLUDES_STB
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# Defining preprocessor directive for debug
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ifdef IPS_DEBUG_EN
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CFLAGS += -DIPS_DEBUG_EN
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LFLAGS += -DIPS_DEBUG_EN
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endif # IPS_DEBUG_EN
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# Defining preprocessor directive for dumping enable
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ifdef IPS_DUMP_EN
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CFLAGS += -DIPS_DUMP_EN
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LFLAGS += -DIPS_DUMP_EN
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endif # IPS_DUMP_EN
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# Defining preprocessor directive for test mode one window random
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ifdef TEST_MODE_ONE_WINDOW_RANDOM
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CFLAGS += -DTEST_MODE_ONE_WINDOW -DTEST_MODE_ONE_WINDOW_RANDOM
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LFLAGS += -DTEST_MODE_ONE_WINDOW -DTEST_MODE_ONE_WINDOW_RANDOM
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endif # TEST_MODE_ONE_WINDOW_RANDOM
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# Defining preprocessor directive for test mode one wildcard normal
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ifdef TEST_MODE_ONE_WINDOW_NORMAL
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CFLAGS += -DTEST_MODE_ONE_WINDOW -DTEST_MODE_ONE_WINDOW_NORMAL
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LFLAGS += -DTEST_MODE_ONE_WINDOW -DTEST_MODE_ONE_WINDOW_NORMAL
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endif # TEST_MODE_ONE_WINDOW_NORMAL
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# Run the compiled file
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run:
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@./test
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# Show waveform
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waveform:
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@gtkwave ips_filter.vcd

‎modules/filter/include/ips_filter_pv_model.hpp‎

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#ifndef IPS_FILTER_FILTER_HPP
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#define IPS_FILTER_FILTER_HPP
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#ifdef IPS_DEBUG_EN
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#include <iostream>
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#endif // IPS_DEBUG_ENi
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#ifdef IPS_DUMP_EN
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#include <sstream>
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#endif // IPS_DUMP_EN
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#include <systemc.h>
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#include <vector>
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template <typename IN = sc_uint<8>, typename OUT = sc_uint<8>, uint8_t N = 3>
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SC_MODULE(Filter)
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{
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//-----------------------------Local Variables-----------------------------
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#ifdef IPS_DUMP_EN
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sc_trace_file* wf;
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#endif // IPS_DUMP_EN
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OUT* kernel;
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/**
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* @brief Default constructor for Filter
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*/
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SC_CTOR(Filter);
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//template <typename IN, typename OUT, uint8_t N>
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#ifdef IPS_DUMP_EN
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Filter(sc_core::sc_module_name name, sc_core::sc_trace_file* wf)
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: sc_core::sc_module(name), wf(wf)
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#else
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Filter(sc_core::sc_module_name name) : sc_core::sc_module(name)
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#endif // IPS_DUMP_EN
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{
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SC_METHOD(init_kernel);
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}
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//---------------------------------Methods---------------------------------
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void filter(IN* img_window, OUT& result);
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void init_kernel();
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};
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template <typename IN, typename OUT, uint8_t N>
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void Filter<IN, OUT, N>::filter(IN* img_window, OUT& result)
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{
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size_t i;
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size_t j;
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result = (OUT) 0;
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for (i = 0; i < N; ++i)
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for (j = 0; j < N; ++j)
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result += this->kernel[i * N + j] * ((OUT) img_window[i * N + j]);
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}
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template <typename IN, typename OUT, uint8_t N>
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void Filter<IN, OUT, N>::init_kernel()
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{
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// Init a kernel of N x N with default value of 1 / (N * N)
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this->kernel = new OUT[N * N];
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std::fill_n(this->kernel, N * N, ((OUT) 1) / ((OUT) N * N));
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#ifdef IPS_DEBUG_EN
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SC_REPORT_INFO(this->name(), "init_kernel result");
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size_t i, j;
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for (i = 0; i < N; ++i)
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{
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for (j = 0; j < N; ++j)
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{
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std::cout << "[" << this->kernel[i * N + j] << "]";
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#ifdef IPS_DUMP_EN
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std::ostringstream var_name;
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var_name << "kernel_" << i << "_" << j;
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sc_trace(this->wf, this->kernel[i * N + j], var_name.str());
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#endif // IPS_DUMP_EN
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}
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std::cout << std::endl;
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}
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#endif // IPS_DEBUG_EN
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}
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#endif // IPS_FILTER_FILTER_HPP

‎modules/filter/src/tb_filter.cpp‎

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#ifdef TEST_MODE_ONE_WINDOW_RANDOM
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#include <cstdlib>
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#endif // TEST_MODE_ONE_WINDOW_RANDOM
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#ifdef IPS_DUMP_EN
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#include <sstream>
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#endif // IPS_DUMP_EN
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#include <systemc.h>
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#define IPS_FILTER_PV_EN
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#define IPS_FILTER_KERNEL_SIZE 3
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#define IPS_IN_TYPE_TB float
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#define IPS_OUT_TYPE_TB float
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#ifdef IPS_FILTER_AT_EN
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#include "ips_filter_at_model.hpp"
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#elif defined(IPS_FILTER_LT_EN)
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#include "ips_filter_lt_model.hpp"
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#elif defined(IPS_FILTER_PV_EN)
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#include "ips_filter_pv_model.hpp"
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#else
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#error "No IPS_FILTER macro is defined. Please define one of IPS_FILTER_AT_EN, IPS_FILTER_LT_EN, or IPS_FILTER_PV_EN."
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#endif // IPS_FILTER_XX_EN
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#ifdef TEST_MODE_ONE_WINDOW
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#ifdef IPS_DUMP_EN
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void run_one_window(sc_trace_file* wf)
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#else
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void run_one_window()
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#endif // IPS_DUMP_EN
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{
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#ifdef IPS_DEBUG_EN
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#ifdef TEST_MODE_ONE_WINDOW_RANDOM
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SC_REPORT_INFO("TEST_MODE_ONE_WINDOW_NORMAL", "Running test");
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#elif defined(TEST_MODE_ONE_WINDOW_NORMAL)
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SC_REPORT_INFO("TEST_MODE_ONE_WINDOW_NORMAL", "Running test");
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#else
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SC_REPORT_INFO("TEST_MODE_ONE_WINDOW_DEFAULT", "Running test");
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#endif // TEST_MODE_ONE_WINDOW_RANDOM
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SC_REPORT_INFO("Initialize window", "Window value");
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#endif
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// Variables
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IPS_IN_TYPE_TB *img_window;
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IPS_OUT_TYPE_TB result;
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// Initialize image window
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img_window = new IPS_IN_TYPE_TB[IPS_FILTER_KERNEL_SIZE * IPS_FILTER_KERNEL_SIZE];
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for (size_t i = 0; i < IPS_FILTER_KERNEL_SIZE; ++i)
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{
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for (size_t j = 0; j < IPS_FILTER_KERNEL_SIZE; ++j)
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{
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IPS_IN_TYPE_TB value;
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#ifdef TEST_MODE_ONE_WINDOW_RANDOM
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value = (IPS_IN_TYPE_TB) (rand() % 256);
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#elif defined(TEST_MODE_ONE_WINDOW_NORMAL)
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value = (IPS_IN_TYPE_TB) (i * IPS_FILTER_KERNEL_SIZE + j);
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#else
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value = (IPS_IN_TYPE_TB) i;
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#endif // TEST_MODE_ONE_WINDOW
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img_window[i * IPS_FILTER_KERNEL_SIZE + j] = value;
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#ifdef IPS_DUMP_EN
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std::ostringstream var_name;
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var_name << "img_window_" << i << "_" << j;
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sc_trace(wf, img_window[i * IPS_FILTER_KERNEL_SIZE + j], var_name.str());
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#endif // IPS_DUMP_EN
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#ifdef IPS_DEBUG_EN
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std::cout << "[" << img_window[i * IPS_FILTER_KERNEL_SIZE + j] << "]";
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#endif // IPS_DUMP_EN
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}
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#ifdef IPS_DEBUG_EN
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std::cout << std::endl;
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#endif // IPS_DEBUG_EN
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}
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// Instantiate filter module and do the connection
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#ifdef IPS_DUMP_EN
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Filter<IPS_IN_TYPE_TB, IPS_OUT_TYPE_TB, IPS_FILTER_KERNEL_SIZE> filter("filter", wf);
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#else
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Filter<IPS_IN_TYPE_TB, IPS_OUT_TYPE_TB, IPS_FILTER_KERNEL_SIZE> filter("filter");
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#endif // IPS_DEBUG_EN
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sc_start();
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#ifdef IPS_DEBUG_EN
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std::cout << "Test starting" << std::endl;
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std::cout << "@" << sc_time_stamp() << std::endl;
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#endif // IPS_DEBUG_EN
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// Apply convolution
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filter.filter(img_window, result);
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#ifdef IPS_DEBUG_EN
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SC_REPORT_INFO("TEST_MODE_ONE_WINDOW", "filtering");
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std::cout << "Result = " << result << std::endl;
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#endif // IPS_DEBUG_EN
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#ifdef IPS_DUMP_EN
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sc_trace(wf, result, "result");
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sc_start(1, SC_NS);
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#endif // IPS_DUMP_EN
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delete [] img_window;
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}
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#endif // TEST_MODE_ONE_WINDOW
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int sc_main(int, char*[])
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{
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// Pass command linke arguments
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sc_argc();
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sc_argv();
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#ifdef IPS_DUMP_EN
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// Open VCD file
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sc_trace_file* wf = sc_create_vcd_trace_file("ips_filter");
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wf->set_time_unit(1, SC_NS);
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#endif // IPS_DUMP_EN
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#ifdef TEST_MODE_ONE_WINDOW
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run_one_window(wf);
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#endif // TEST_MODE_ONE_WINDOW
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#ifdef IPS_DUMP_EN
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std::cout << "@" << sc_time_stamp() << " Terminating simulation" << std::endl;
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sc_close_vcd_trace_file(wf);
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#endif // IPS_DUMP_EN
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return 0;
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}

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