--- /dev/null
+src = $(wildcard src/*.cc)
+obj = $(src:.cc=.o)
+dep = $(obj:.o=.d)
+bin = winnie
+
+
+dbg = -g
+opt = -O0
+inc = -Isrc -Isrc/shaders -Isrc/math
+
+CXX = g++
+CXXFLAGS = -pedantic -Wall $(dbg) $(opt) $(inc)
+#LDFLAGS =
+
+$(bin): $(obj)
+ $(CXX) -o $@ $(obj) $(LDFLAGS)
+
+-include $(dep)
+
+%.d: %.cc
+ @$(CPP) $(CXXFLAGS) $< -MM -MT $(@:.d=.o) >$@
+
+.PHONY: clean
+clean:
+ rm -f $(obj) $(bin) $(dep)
--- /dev/null
+#include "event.h"
+
+static DisplayFuncType display_func;
+static KeyboardFuncType keyboard_func;
+static MouseButtonFuncType mouse_button_func;
+static MouseMotionFuncType mouse_motion_func;
+
+void set_display_callback(DisplayFuncType display)
+{
+ display_func = display;
+}
+
+void set_keyboard_callback(KeyboardFuncType keyboard)
+{
+ keyboard_func = keyboard;
+}
+
+void set_mouse_button_callback(MouseButtonFuncType mouse_button)
+{
+ mouse_button_func = mouse_button;
+}
+
+void set_mouse_motion_callback(MouseMotionFuncType mouse_motion)
+{
+ mouse_motion_func = mouse_motion;
+}
+
+DisplayFuncType get_display_callback()
+{
+ return display_func;
+}
+
+KeyboardFuncType get_keyboard_callback()
+{
+ return keyboard_func;
+}
+
+MouseButtonFuncType get_mouse_button_callback()
+{
+ return mouse_button_func;
+}
+
+MouseMotionFuncType get_mouse_motion_callback()
+{
+ return mouse_motion_func;
+}
--- /dev/null
+#ifndef EVENT_H_
+#define EVENT_H_
+
+typedef void (*DisplayFuncType)();
+typedef void (*KeyboardFuncType)(int key, bool pressed);
+typedef void (*MouseButtonFuncType)(int bn, bool pressed);
+typedef void (*MouseMotionFuncType)(int x, int y);
+
+void set_display_callback(DisplayFuncType display);
+void set_keyboard_callback(KeyboardFuncType keyboard);
+void set_mouse_button_callback(MouseButtonFuncType mouse_button);
+void set_mouse_motion_callback(MouseMotionFuncType mouse_motion);
+
+DisplayFuncType get_display_callback();
+KeyboardFuncType get_keyboard_callback();
+MouseButtonFuncType get_mouse_button_callback();
+MouseMotionFuncType get_mouse_motion_callback();
+
+#endif
--- /dev/null
+#include <errno.h>
+#include <limits.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <unistd.h>
+
+#include <linux/fb.h>
+
+#include "gfx.h"
+
+#define FRAMEBUFFER_SIZE(xsz, ysz, bpp) ((xsz) * (ysz) * (bpp) / CHAR_BIT)
+
+static unsigned char* framebuffer;
+static int dev_fd = -1;
+
+static Rect screen_rect;
+static int color_depth; //bits per pixel
+
+bool init_gfx()
+{
+ if((dev_fd = open("/dev/fb0", O_RDWR)) == -1) {
+ fprintf(stderr, "Cannot open /dev/fb0 : %s\n", strerror(errno));
+ return false;
+ }
+
+ fb_var_screeninfo sinfo;
+ if(ioctl(dev_fd, FBIOGET_VSCREENINFO, &sinfo) == -1) {
+ close(dev_fd);
+ dev_fd = -1;
+ fprintf(stderr, "Unable to get screen info : %s\n", strerror(errno));
+ return false;
+ }
+
+ printf("width : %d height : %d\n : bpp : %d\n", sinfo.xres, sinfo.yres, sinfo.bits_per_pixel);
+ printf("virtual w: %d virtual h: %d\n", sinfo.xres_virtual, sinfo.yres_virtual);
+
+ screen_rect.x = screen_rect.y = 0;
+ screen_rect.width = sinfo.xres_virtual;
+ screen_rect.height = sinfo.yres_virtual;
+ color_depth = sinfo.bits_per_pixel;
+
+ int sz = FRAMEBUFFER_SIZE(screen_rect.width, screen_rect.height, color_depth);
+ framebuffer = (unsigned char*)mmap(0, sz, PROT_READ | PROT_WRITE, MAP_SHARED, dev_fd, 0);
+
+ if(framebuffer == (void*)-1) {
+ close(dev_fd);
+ dev_fd = -1;
+ fprintf(stderr, "Cannot map the framebuffer to memory : %s\n", strerror(errno));
+ return false;
+ }
+
+ return true;
+}
+
+void destroy_gfx()
+{
+ close(dev_fd);
+ dev_fd = -1;
+
+ munmap(framebuffer, FRAMEBUFFER_SIZE(screen_rect.width, screen_rect.height, color_depth));
+ framebuffer = 0;
+}
+
+unsigned char* get_framebuffer()
+{
+ return framebuffer;
+}
+
+Rect get_screen_size()
+{
+ return screen_rect;
+}
+
+int get_color_depth()
+{
+ return color_depth;
+}
+
+void clear_screen(int r, int g, int b)
+{
+ unsigned char* fb = framebuffer;
+ for(int i=0; i<screen_rect.width * screen_rect.height; i++) {
+ *fb++ = r;
+ *fb++ = g;
+ *fb++ = b;
+ fb++;
+ }
+}
+
+void set_cursor_visibility(bool visible)
+{
+ fb_cursor curs;
+ curs.enable = visible ? 1 : 0;
+
+ if(ioctl(dev_fd, FBIO_CURSOR, &curs) == -1) {
+ fprintf(stderr, "Cannot toggle cursor visibility : %s\n", strerror(errno));
+ }
+}
--- /dev/null
+#ifndef GFX_H_
+#define GFX_H_
+
+struct Rect {
+ int x;
+ int y;
+ int width;
+ int height;
+};
+
+bool init_gfx();
+void destroy_gfx();
+
+unsigned char* get_framebuffer();
+Rect get_screen_size();
+int get_color_depth();
+
+void clear_screen(int r, int g, int b);
+
+void set_cursor_visibility(bool visible);
+
+#endif //GFX_H_
--- /dev/null
+#include <stdio.h>
+
+#include "gfx.h"
+
+int main()
+{
+ if(!init_gfx()) {
+ return 1;
+ }
+
+ set_cursor_visibility(false);
+
+ unsigned char* fb = get_framebuffer();
+ Rect scrn_sz = get_screen_size();
+
+ for(int i=0; i<scrn_sz.height; i++) {
+ for(int j=0; j<scrn_sz.width; j++) {
+ unsigned char color0[3] = {255, 0, 0};
+ unsigned char color1[3] = {0, 0, 255};
+ unsigned char* color;
+
+ //red blue chessboard 16 pxls size
+ if(((j >> 4) & 1) == ((i >> 4) & 1)) {
+ color = color0;
+ }
+ else {
+ color = color1;
+ }
+
+ *fb++ = color[0];
+ *fb++ = color[1];
+ *fb++ = color[2];
+ fb++;
+ }
+ }
+
+ getchar();
+ clear_screen(0, 0, 0);
+
+ destroy_gfx();
+}