draw Skew

drawSkew.cpp

void testApp::drawSkew(ofImage * src, ofPoint * tl, ofPoint * tr, ofPoint * br, ofPoint * bl) {
    // tl,tr,br,bl = normalized 0.-1.
    ofSetColor(255);
    src->reloadTexture();
        //src->draw(0,0);
        //ofDisableArbTex();
    src->getTextureReference().bind();
        //    glEnable(GL_TEXTURE_2D);
    glMatrixMode(GL_TEXTURE);
    glPushMatrix();
    ofScale(src->getWidth(), src->getHeight());
    glMatrixMode(GL_MODELVIEW);
    glEnable(GL_DEPTH_TEST);
    glBegin(GL_QUADS);
    glNormal3f(0.0f,0.0f,1.0f);
    //Top Left
    glTexCoord3f(0.0f, 0.0f, 0.0f);
    glVertex3f( tl->x, tl->y, 0.0f);
    // Top Right
    glTexCoord3f(1.0f, 0.0f, 0.0f);
    glVertex3f( tr->x, tr->y, 0.0f);
    // Bottom Right
    glTexCoord3f(1.0f, 1.0f, 0.0f);
    glVertex3f( br->x,br->y, 0.0f);
    // Bottom Left
    glTexCoord3f(0.0f, 1.0f, 0.0f);
    glVertex3f( bl->x, bl->y, 0.0f);
    glEnd();
    glDisable (GL_DEPTH_TEST);
    glMatrixMode(GL_TEXTURE);
    glPopMatrix();
    glMatrixMode(GL_MODELVIEW);
        //    glDisable(GL_TEXTURE_2D);
    src->getTextureReference().unbind();
        //ofEnableArbTex();
}