Add rgb2gray module and tb of pv model

Author: fa-jimenez

modules/Makefile

@@ -5,7 +5,7 @@ TARGET?=test
 
 # Compiler
 CC=g++
-CFLAGS=-Wall -I. -O3 -g -Wextra -Wunused-function
+CFLAGS=-Wall -I. -O3 -g -std=c++17 -Wextra -Wunused-function
 
 # Target
 LD=g++
@@ -24,8 +24,8 @@ ifdef INCLUDE_OPENCV
 LIBS+=-lopencv_imgcodecs -lopencv_core -lopencv_highgui -lopencv_imgproc
 
 # Source directories
-INCDIR+=-I/usr/local/include/opencv4
-LIBDIR+=-L/usr/local/lib
+INCDIR+=-I$(OPENCV_H_DIR)
+LIBDIR+=-L$(OPENCV_SO_DIR)
 endif # INCLUDE_OPENCV
 
 SOURCES := $(wildcard $(SRCDIR)/*.cpp)

modules/rgb2gray/Makefile

@@ -0,0 +1,41 @@
+# Adding stb lib for image handling
+INCDIR_STB=lib/stb
+INCLUDES_STB := $(wildcard $(INCDIR_STB)/*.h)
+
+# Include common Makefile
+include ../Makefile
+
+# Include stb lib for compilation
+INCLUDES += INCLUDES_STB
+
+# Defining preprocessor directive for debug
+ifdef IPS_DEBUG_EN
+	CFLAGS += -DIPS_DEBUG_EN
+	LFLAGS += -DIPS_DEBUG_EN
+endif # IPS_DEBUG_EN
+
+# Defining preprocessor directive for dumping enable
+ifdef IPS_DUMP_EN
+	CFLAGS += -DIPS_DUMP_EN
+	LFLAGS += -DIPS_DUMP_EN
+endif # IPS_DUMP_EN
+
+# Defining preprocessor directive for normalizing the resulting magnitude
+ifdef TEST_NORMALIZE_MAGNITUDE
+	CFLAGS += -DTEST_NORMALIZE_MAGNITUDE
+	LFLAGS += -DTEST_NORMALIZE_MAGNITUDE
+endif # TEST_NORMALIZE_MAGNITUDE
+
+# Defining preprocessor directive for using PV model
+ifdef RGB2GRAY_PV_EN
+	CFLAGS += -DRGB2GRAY_PV_EN
+	LFLAGS += -DRGB2GRAY_PV_EN
+endif # RGB2GRAY_PV_EN
+
+# Run the compiled file
+run:
+	@./test
+
+# Show waveform
+waveform:
+	@gtkwave rgb2gray.vcd

modules/rgb2gray/include/rgb2gray_pv_model.hpp

@@ -0,0 +1,28 @@
+#ifdef RGB2GRAY_PV_EN
+#ifndef RGB2GRAY_HPP
+#define RGB2GRAY_HPP
+
+#include <systemc.h>
+
+SC_MODULE(Rgb2Gray)
+{
+
+  unsigned char r;
+  unsigned char g;
+  unsigned char b;
+  unsigned char gray_value;
+
+  SC_CTOR(Rgb2Gray)
+  {
+  }
+  
+  void set_rgb_pixel(unsigned char r_val, unsigned char g_val, unsigned char b_val);
+  
+  void compute_gray_value();
+  
+  char obtain_gray_value();
+
+};
+
+#endif // RGB2GRAY_HPP
+#endif // RGB2GRAY_PV_EN

modules/rgb2gray/src/rgb2gray_pv_model.cpp

@@ -0,0 +1,27 @@
+#ifdef RGB2GRAY_PV_EN
+#ifndef RGB2GRAY_CPP
+#define RGB2GRAY_CPP
+
+#include "rgb2gray_pv_model.hpp"
+
+void Rgb2Gray::set_rgb_pixel(unsigned char r_val, unsigned char g_val, unsigned char b_val)
+{
+  this->r = r_val;
+  this->g = g_val;
+  this->b = b_val;
+}
+
+void Rgb2Gray::compute_gray_value()
+{
+  this->gray_value = 0.299 * this->r + 0.587 * this->g + 0.114 * this->b;
+}
+
+char Rgb2Gray::obtain_gray_value()
+{
+  compute_gray_value();
+
+  return this->gray_value;
+}
+
+#endif // RGB2GRAY_CPP
+#endif // RGB2GRAY_PV_EN

modules/rgb2gray/src/tb_rgb2gray.cpp

@@ -0,0 +1,73 @@
+#define int64  systemc_int64
+#define uint64 systemc_uint64
+#include <systemc.h>
+#undef int64
+#undef uint64
+#define int64  opencv_int64
+#define uint64 opencv_uint64
+#include <opencv2/opencv.hpp>
+#undef int64
+#undef uint64
+
+#include "rgb2gray_pv_model.hpp"
+
+using namespace cv; 
+
+int sc_main(int, char*[])
+{
+  Mat colorImage;
+  
+  unsigned char localR, localG, localB;
+  unsigned char localResult;
+
+  // Pass command linke arguments
+  sc_argc();
+  sc_argv();
+  
+  // Open VCD file
+  sc_trace_file* wf = sc_create_vcd_trace_file("rgb2gray");
+  wf->set_time_unit(1, SC_NS);
+
+  Rgb2Gray rgb2gray("rgb2gray");
+  
+  colorImage = imread("../../tools/datagen/src/imgs/car.jpg", IMREAD_UNCHANGED);
+  
+  if (colorImage.empty())
+  { 
+    cout << "Image File " << "Not Found" << endl; 
+
+    // wait for any key press 
+    return -1; 
+  }
+  
+  Mat greyImage(colorImage.rows, colorImage.cols, CV_8UC1);
+  
+  sc_start();
+  
+  for (int i = 0; i < colorImage.rows; i++)
+  {
+    for (int j = 0; j < colorImage.cols; j++)
+    {      
+      localR = colorImage.at<cv::Vec3b>(i, j)[2];
+      localG = colorImage.at<cv::Vec3b>(i, j)[1];
+      localB = colorImage.at<cv::Vec3b>(i, j)[0];
+      rgb2gray.set_rgb_pixel(localR, localG, localB);
+      localResult = rgb2gray.obtain_gray_value();
+
+      greyImage.at<uchar>(i, j) = localResult;
+    }
+  }
+  
+  imshow("Window Name", colorImage);
+  
+  waitKey(0);
+  
+  imshow("Window Name", greyImage);
+  
+  waitKey(0);
+
+  std::cout << "@" << sc_time_stamp() << " Terminating simulation" << std::endl;
+  sc_close_vcd_trace_file(wf);
+
+  return 0;
+}

modules/rgb2gray/utils.sh

@@ -0,0 +1,7 @@
+#!/bin/sh
+export SYSTEMC=/usr/local/systemc-3.0.0
+export OPENCV_SO_DIR=/lib/x86_64-linux-gnu
+export OPENCV_H_DIR=/usr/include/opencv4
+export LD_LIBRARY_PATH=$SYSTEMC/lib-linux64:$OPENCV_SO_DIR
+export USER_DEF_SYSTEMC_DIR=1
+export INCLUDE_OPENCV=1