Makefile

@@ -5,7 +5,7 @@ CC = ${HOME}/opt/cross/bin/i686-elf-gcc
 CPP = ${HOME}/opt/cross/bin/i686-elf-g++ 
 CFLAGS =  -ffreestanding -O2 -Wall -Wextra
 
-OFILES =  $(BUILD_DIR)/boot.o $(BUILD_DIR)/window.o $(BUILD_DIR)/cursor.o $(BUILD_DIR)/kterm.o $(BUILD_DIR)/kernel.o  $(BUILD_DIR)/PhysicalMemoryManager.o $(BUILD_DIR)/io.o  $(BUILD_DIR)/vesa.o $(BUILD_DIR)/PageDirectory.o $(BUILD_DIR)/gdtc.o $(BUILD_DIR)/idt.o $(BUILD_DIR)/pic.o $(BUILD_DIR)/string.o
+OFILES =  $(BUILD_DIR)/boot.o  $(BUILD_DIR)/kterm.o $(BUILD_DIR)/kernel.o  $(BUILD_DIR)/PhysicalMemoryManager.o $(BUILD_DIR)/io.o  $(BUILD_DIR)/vesa.o $(BUILD_DIR)/PageDirectory.o $(BUILD_DIR)/gdtc.o $(BUILD_DIR)/idt.o $(BUILD_DIR)/pic.o $(BUILD_DIR)/string.o
 
 SRC_DIR = src
 BUILD_DIR = build
@@ -89,10 +89,4 @@ $(BUILD_DIR)/PhysicalMemoryManager.o:
 	$(CPP) -c $(SRC_DIR)/kernel/memory/PhysicalMemoryManager.cpp  -o $(BUILD_DIR)/PhysicalMemoryManager.o $(CFLAGS) -fno-exceptions -fno-rtti
 
 $(BUILD_DIR)/vesa.o:
-	$(CPP) -c $(SRC_DIR)/kernel/drivers/vesa/vesa.cpp  -o $(BUILD_DIR)/vesa.o $(CFLAGS) -fno-exceptions -fno-rtti
-
-$(BUILD_DIR)/window.o:
-	$(CPP) -c $(SRC_DIR)/gui/window.cpp  -o $(BUILD_DIR)/window.o $(CFLAGS) -fno-exceptions -fno-rtti
-
-$(BUILD_DIR)/cursor.o:
-	$(CPP) -c $(SRC_DIR)/gui/cursor.cpp  -o $(BUILD_DIR)/cursor.o $(CFLAGS) -fno-exceptions -fno-rtti
+	$(CPP) -c $(SRC_DIR)/kernel/vesa.cpp  -o $(BUILD_DIR)/vesa.o $(CFLAGS) -fno-exceptions -fno-rtti

src/gui/Graphics.h

@@ -1,5 +0,0 @@
-#pragma once
-
-class Graphics {
-
-};

src/gui/Widget.h

@@ -1,7 +0,0 @@
-#pragma once
-
-
-class Widget{
-    virtual void draw();
-
-};

src/gui/cursor.cpp

@@ -1,17 +0,0 @@
-#include "cursor.h"
-
-    void Cursor::draw(){
-        for(int i = 0; i <  this->width; i++){
-            for(int j = 0; j <  this->height; j++){
-                if(this->bitmap[j * this->width + i] == 1 ){
-                        putPixel(i + this->x,j + this->y, 0xFF000000);
-                }
-            }
-        }
-    }
-
-
-    Cursor::Cursor(int x, int y){
-        this->x = x;
-        this->y = y;
-    }

src/gui/cursor.h

@@ -1,38 +0,0 @@
-#pragma once 
-#include "../kernel/drivers/vesa/vesa.h"
-
-
-class Cursor{
-    public:
-    void draw();
-    Cursor(int x, int y);
-
-
-
-    private:
-        int x;
-        int y;
-        const int width= 16;
-        const int height= 10;
-        const int bitmap [160] = {
-            0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-
-            0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,
-
-            0,0,0,0,0,0,0,0,1,1,1,0,0,0,0,0,
-
-            0,0,0,0,0,0,0,1,1,1,1,1,0,0,0,0,
-
-            0,0,0,0,0,0,1,1,1,1,1,1,1,0,0,0,
-
-            0,0,0,0,0,1,1,1,1,1,1,1,1,1,0,0,
-
-            0,0,0,0,0,0,0,0,1,1,1,1,0,0,0,0,
-
-            0,0,0,0,0,0,0,0,1,1,1,1,0,0,0,0,
-
-            0,0,0,0,0,0,0,0,1,1,1,1,0,0,0,0,
-
-            0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-        };
-};

src/gui/window.cpp

@@ -1,33 +0,0 @@
-#include "window.h"
-
-int Window::getWidth(){
-    return this->rect.width;
-}
-
-int Window::getHeight(){
-    return this->rect.height;
-}
-
-void Window::setWidth(int& width){
-    this->rect.width = width;
-}
-void Window::setHeight(int& height){
-    this->rect.height = height;
-}
-
-int Window::getX(){
-    return this->rect.x;
-}
-
-int Window::getY(){
-    return this->rect.y;
-}
-
-Window::Window (Rect& rect , uint32_t colour){
-    this->rect = rect;
-    this->Background_colour = colour;
-}
-
-void Window::draw(){
-    drawRect(this->getX() , this->getY() , this->getWidth() , this->getHeight() ,this->Background_colour );
-}

src/gui/window.h

@@ -1,37 +0,0 @@
-#pragma once
-#include "../kernel/drivers/vesa/vesa.h"
-#include "Widget.h"
-
-struct Rect {
-    int width;
-    int height;
-    int x;
-    int y;
-
-};
-
-
-
-class Window : Widget{
-
-public:
-    int getX();
-    int getY();
-
-    int getWidth();
-    int getHeight();
-    void setWidth(int&);
-    void setHeight(int&);
-
-    Window (Rect& rect , uint32_t colour);
-    void draw();
-
-
-private:
-    Rect rect;
-    uint32_t Background_colour;
-
-
-
-
-};

src/kernel/bootcheck.h

@@ -1,10 +1,9 @@
 #pragma once 
 #include "bootloader/multiboot.h"
 #define CHECK_FLAG(flags, bit) ((flags) & (1 <<(bit)))
-#include "../gui/window.h"
-#include "../gui/cursor.h"
+
 #include "tty/kterm.h"
-#include "drivers/vesa/vesa.h"
+#include "vesa.h"
 
 void CheckMBT ( multiboot_info_t*  mbt  ){
   /* Set MBI to the addresss of the multiboot information structure*/
@@ -76,32 +75,11 @@ void CheckMBT ( multiboot_info_t*  mbt  ){
     // Init vesa driver
     initVBEDevice(mbt); 
 
-    // Fill screen with blue
-                                                // colours AARRGGBB
-    drawRect(0, 0 , VbeModeInfo->width,VbeModeInfo->height, 0xFF0000FF);
+    // Turn pixel on in the middle of the screen;
+    putPixel( 50, 50 , 0x00FFFFFF);
 
-    // Create two windows
-    Rect rect_window1 {};
-    Rect rect_window2 {};
-    rect_window1.height =200;
-    rect_window1.width = 300;
-    rect_window1.x = 50;
-    rect_window1.y = 50;
-
-    rect_window2.height =200;
-    rect_window2.width = 300;
-    rect_window2.x = 300;
-    rect_window2.y = 200;
-
-    Window window_1 ( rect_window1, 0xFF00F0FF);
-    Window window_2 (rect_window2, 0xFFAACCDD);
-
-    window_1.draw();
-    window_2.draw();
-
-    Cursor cursor (70,100);
-
-    cursor.draw();
+    putPixel(VbeModeInfo->width / 2 , VbeModeInfo->height / 2  , 0x00FF0000);
+    drawLine(50,10, 150, 8, 0x00FF00FF);
 
 
   }

src/kernel/vesa.cpp

@@ -15,13 +15,13 @@ void initVBEDevice(multiboot_info_t* mbt){
 }
 
 void putPixel( int x, int y , uint32_t colour){
-   // printf_serial("putPixel x: %d, y: %d\n", x, y);
+    printf_serial("putPixel x: %d, y: %d\n", x, y);
                     ///fb + mbt->framebuffer_pitch * y + 4 * x ,NOTE: this calculation is very important 
     *(uint32_t*) (  VbeModeInfo->framebuffer + VbeModeInfo->pitch * y + 4  * x ) = colour;
 }
 void drawLine(int x1, int y1, int x2, int y2, uint32_t colour ){
     print_serial("drawline\n");
-    // See Bresenham's line algorithm
+    // Bresenham's line algorithm??
     int deltaX = x2 - x1;
     int deltaY = y2 - y1;
     int D = 2 * deltaY - deltaX;
@@ -41,14 +41,6 @@ void drawLine(int x1, int y1, int x2, int y2, uint32_t colour ){
 }
 void drawRect ( int x, int y, int width, int height, uint32_t colour ){
     print_serial("drawRect\n");
-    for ( int i = x; i < x + width; i ++)
-    {
-      for(int j = y; j < y + height; j++){
-        
-        putPixel(i,j, colour);
-      }
-    }
-
 }
 
 

src/kernel/vesa.h

@@ -1,7 +1,7 @@
 #pragma once 
 #include <stdint.h>
-#include "../../bootloader/multiboot.h"
-#include "../../serial.h"
+#include "bootloader/multiboot.h"
+#include "serial.h"
 
 struct vbe_mode_info_structure{
         uint16_t attributes;