dbf-udg

annotate src/post.cc @ 11:5f99c4c7a9fe

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now it looks pretty much ok
author John Tsiombikas <nuclear@member.fsf.org>
date Wed, 20 Feb 2013 04:55:03 +0200
parents
children 1abbed71e9c9
rev   line source
nuclear@11 1 #include "opengl.h"
nuclear@11 2 #include "post.h"
nuclear@11 3
nuclear@11 4 void overlay(float r, float g, float b, float a)
nuclear@11 5 {
nuclear@11 6 glPushAttrib(GL_ENABLE_BIT);
nuclear@11 7 glDisable(GL_DEPTH_TEST);
nuclear@11 8 glDisable(GL_LIGHTING);
nuclear@11 9
nuclear@11 10 glMatrixMode(GL_MODELVIEW);
nuclear@11 11 glPushMatrix();
nuclear@11 12 glLoadIdentity();
nuclear@11 13 glMatrixMode(GL_PROJECTION);
nuclear@11 14 glPushMatrix();
nuclear@11 15 glLoadIdentity();
nuclear@11 16
nuclear@11 17 glBegin(GL_QUADS);
nuclear@11 18 glColor4f(r, g, b, a);
nuclear@11 19 glTexCoord2f(0, 0); glVertex2f(-1, -1);
nuclear@11 20 glTexCoord2f(1, 0); glVertex2f(1, -1);
nuclear@11 21 glTexCoord2f(1, 1); glVertex2f(1, 1);
nuclear@11 22 glTexCoord2f(0, 1); glVertex2f(-1, 1);
nuclear@11 23 glEnd();
nuclear@11 24
nuclear@11 25 glPopMatrix();
nuclear@11 26 glMatrixMode(GL_MODELVIEW);
nuclear@11 27 glPopMatrix();
nuclear@11 28
nuclear@11 29 glPopAttrib();
nuclear@11 30 }