# HG changeset patch
# User John Tsiombikas <nuclear@member.fsf.org>
# Date 1409342879 -10800
# Node ID 76e75cbcb758f978d915dc518611a8631c871c18
# Parent  affaad5fcd309e02e559042769c98b7ae79946e1
foo

diff -r affaad5fcd30 -r 76e75cbcb758 .hgignore
--- a/.hgignore	Fri Aug 29 18:56:54 2014 +0300
+++ b/.hgignore	Fri Aug 29 23:07:59 2014 +0300
@@ -1,3 +1,4 @@
 \.o$
 \.d$
 \.swp$
+^vrmodel$
diff -r affaad5fcd30 -r 76e75cbcb758 Makefile
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Makefile	Fri Aug 29 23:07:59 2014 +0300
@@ -0,0 +1,25 @@
+src = $(wildcard src/*.cc)
+obj = $(src:.cc=.o)
+dep = $(obj:.o=.d)
+bin = vrmodel
+
+CFLAGS = -pedantic -Wall -g `pkg-config --cflags sdl2`
+LDFLAGS = $(libgl) `pkg-config --libs sdl2`
+
+ifeq ($(shell uname -s), Darwin)
+	libgl = -framework OpenGL -lGLEW
+else
+	libgl = -lGL -lGLU -lGLEW
+endif
+
+$(bin): $(obj)
+	$(CC) -o $@ $(obj) $(LDFLAGS)
+
+-include $(dep)
+
+%.d: %.cc
+	@$(CPP) $(CFLAGS) $< -MM -MT $(@:.d=.o) >$@
+
+.PHONY: clean
+clean:
+	rm -f $(obj) $(bin)
diff -r affaad5fcd30 -r 76e75cbcb758 src/main.cc
--- a/src/main.cc	Fri Aug 29 18:56:54 2014 +0300
+++ b/src/main.cc	Fri Aug 29 23:07:59 2014 +0300
@@ -0,0 +1,101 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <SDL2/SDL.h>
+#include "opengl.h"
+#include "vport.h"
+
+#define ANYPOS	SDL_WINDOWPOS_UNDEFINED
+
+void display();
+bool handle_event(SDL_Event *ev);
+bool handle_key(int key, bool pressed);
+void reshape(int x, int y);
+
+static SDL_Window *win;
+static SDL_GLContext ctx;
+
+int main(int argc, char **argv)
+{
+	if(SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER) == -1) {
+		fprintf(stderr, "failed to initialize SDL\n");
+		return 1;
+	}
+
+	unsigned int flags = SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE;
+	if(!(win = SDL_CreateWindow("vrmodel", ANYPOS, ANYPOS, 1280, 800, flags))) {
+		fprintf(stderr, "failed to create window\n");
+		return 1;
+	}
+	if(!(ctx = SDL_GL_CreateContext(win))) {
+		fprintf(stderr, "failed to create OpenGL context\n");
+		SDL_Quit();
+		return 1;
+	}
+
+	for(;;) {
+		SDL_Event ev;
+		SDL_WaitEvent(&ev);
+
+		do {
+			if(!handle_event(&ev)) {
+				goto done;
+			}
+		} while(SDL_PollEvent(&ev));
+
+		display();
+	}
+
+done:
+	SDL_Quit();
+	return 0;
+}
+
+void display()
+{
+	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+	int width, height;
+	SDL_GetWindowSize(win, &width, &height);
+	glViewport(0, 0, width, height);
+
+	glMatrixMode(GL_PROJECTION);
+	glLoadIdentity();
+	gluPerspective(50.0, (float)width / (float)height, 0.5, 1000.0);
+
+	glMatrixMode(GL_MODELVIEW);
+	glLoadIdentity();
+	glTranslatef(0, 0, -10);
+	glRotatef(25, 1, 0, 0);
+
+	draw_vport();
+
+	SDL_GL_SwapWindow(win);
+}
+
+bool handle_event(SDL_Event *ev)
+{
+	switch(ev->type) {
+	case SDL_KEYDOWN:
+	case SDL_KEYUP:
+		return handle_key(ev->key.keysym.sym, ev->key.state == SDL_PRESSED);
+
+	default:
+		break;
+	}
+
+	return true;
+}
+
+bool handle_key(int key, bool pressed)
+{
+	if(pressed) {
+		switch(key) {
+		case 27:
+			return false;
+
+		default:
+			break;
+		}
+	}
+	return true;
+}
diff -r affaad5fcd30 -r 76e75cbcb758 src/opengl.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/opengl.h	Fri Aug 29 23:07:59 2014 +0300
@@ -0,0 +1,16 @@
+#ifndef OPENGL_H_
+#define OPENGL_H_
+
+#include <GL/glew.h>
+
+#ifdef WIN32
+#include <windows.h>
+#endif
+
+#ifdef __APPLE__
+#include <OpenGL/gl.h>
+#else
+#include <GL/gl.h>
+#endif
+
+#endif	/* OPENGL_H_ */
diff -r affaad5fcd30 -r 76e75cbcb758 src/vport.cc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/vport.cc	Fri Aug 29 23:07:59 2014 +0300
@@ -0,0 +1,49 @@
+#include "vport.h"
+#include "opengl.h"
+
+static void draw_grid(int num_lines, float sep);
+
+bool init_vport()
+{
+	return true;
+}
+
+void destroy_vport()
+{
+}
+
+void draw_vport()
+{
+	draw_grid(10, 2.5);
+}
+
+static void draw_grid(int num_lines, float sep)
+{
+	float size = num_lines * sep;
+
+	glLineWidth(1);
+
+	glBegin(GL_LINES);
+	glColor3f(0.3, 0.3, 0.3);
+	for(int i=1; i<=num_lines; i++) {
+		glVertex3f(-i * sep, 0, -size);
+		glVertex3f(-i * sep, 0, size);
+		glVertex3f(i * sep, 0, -size);
+		glVertex3f(i * sep, 0, size);
+		glVertex3f(-size, 0, -i * sep);
+		glVertex3f(size, 0, -i * sep);
+		glVertex3f(-size, 0, i * sep);
+		glVertex3f(size, 0, i * sep);
+	}
+	glEnd();
+
+	glLineWidth(2);
+	glBegin(GL_LINES);
+	glColor3f(1, 0.3, 0.3);
+	glVertex3f(-size, 0, 0);
+	glVertex3f(size, 0, 0);
+	glColor3f(0.3, 1, 0.3);
+	glVertex3f(0, 0, -size);
+	glVertex3f(0, 0, size);
+	glEnd();
+}
diff -r affaad5fcd30 -r 76e75cbcb758 src/vport.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/vport.h	Fri Aug 29 23:07:59 2014 +0300
@@ -0,0 +1,9 @@
+#ifndef VPORT_H_
+#define VPORT_H_
+
+bool init_vport();
+void destroy_vport();
+
+void draw_vport();
+
+#endif	// VPORT_H_