1 #ifdef WIN32

2 #define WIN32_LEAN_AND_MEAN

3 #include <windows.h>

4 #endif

5

6 #ifdef __APPLE__

7 #include <OpenGL/gl.h>

8 #else

9 #include <GL/gl.h>

10 #endif

11

12 #include "vr_impl.h"

13

14 static int init(void)

15 {

16 return 0;

17 }

18

19 static void draw(unsigned int fbtex, float u, float maxu, float v, float maxv)

20 {

21 glPushAttrib(GL_ENABLE_BIT | GL_TRANSFORM_BIT);

22

23 glDisable(GL_LIGHTING);

24 glDisable(GL_DEPTH_TEST);

25 glDisable(GL_FOG);

26 glDisable(GL_CULL_FACE);

27

28 glMatrixMode(GL_MODELVIEW);

29 glLoadIdentity();

30 glMatrixMode(GL_PROJECTION);

31 glLoadIdentity();

32

33 glBegin(GL_QUADS);

34 glTexCoord2f(u, v);

35 glVertex2f(-1, -1);

36 glTexCoord2f((u + maxu) / 2, v);

37 glVertex2f(1, -1);

38 glTexCoord2f((u + maxu) / 2, maxv);

39 glVertex2f(1, 1);

40 glTexCoord2f(u, maxv);

41 glVertex2f(-1, 1);

42 glEnd();

43

44 glPopMatrix();

45 glMatrixMode(GL_MODELVIEW);

46 glPopMatrix();

47

48 glPopAttrib();

49 }

50

51 struct vr_module *vr_module_null(void)

52 {

53 static struct vr_module m;

54

55 if(!m.init) {

56 m.name = "null";

57 m.init = init;

58 m.draw = draw;

59 }

60 return &m;

61 }