/** R_BeginFrame */
public final void BeginFrame(float camera_separation) {
GlConfig.gl_state.camera_separation = camera_separation;
/*
* * change modes if necessary
*/
if (GlConfig.gl_mode.modified || GlConfig.vid_fullscreen.modified) {
// FIXME: only restart if CDS is required
ConsoleVariable ref;
ref = ConsoleVariables.Get("vid_ref", "lwjgl", 0);
ref.modified = true;
}
if (GlConfig.gl_log.modified) {
// GlBase.GLimp_EnableLogging((GlState.gl_log.value != 0.0f));
GlConfig.gl_log.modified = false;
}
if (GlConfig.gl_log.value != 0.0f) {
// GlBase.GLimp_LogNewFrame();
}
/*
* * update 3Dfx gamma -- it is expected that a user will do a vid_restart*
* after tweaking this value
*/
if (GlConfig.vid_gamma.modified) {
GlConfig.vid_gamma.modified = false;
}
/*
* * go into 2D mode
*/
GlState.gl.glViewport(0, 0, GlState.vid.width, GlState.vid.height);
GlState.gl.glMatrixMode(Gl1Context.GL_PROJECTION);
GlState.gl.glLoadIdentity();
GlState.gl.glOrtho(0, GlState.vid.width, GlState.vid.height, 0, -99999, 99999);
GlState.gl.glMatrixMode(Gl1Context.GL_MODELVIEW);
GlState.gl.glLoadIdentity();
GlState.gl.glDisable(Gl1Context.GL_DEPTH_TEST);
GlState.gl.glDisable(Gl1Context.GL_CULL_FACE);
GlState.gl.glDisable(Gl1Context.GL_BLEND);
// gl.glEnable(GLAdapter.GL_ALPHA_TEST);
GlState.gl.glColor4f(1, 1, 1, 1);
/*
* * draw buffer stuff
*/
if (GlConfig.gl_drawbuffer.modified) {
GlConfig.gl_drawbuffer.modified = false;
if (GlState.camera_separation == 0 || !GlState.stereo_enabled) {
if (GlConfig.gl_drawbuffer.string.equalsIgnoreCase("GL_FRONT"))
GlState.gl.glDrawBuffer(Gl1Context.GL_FRONT);
else GlState.gl.glDrawBuffer(Gl1Context.GL_BACK);
}
}
/*
* * texturemode stuff
*/
if (GlConfig.gl_texturemode.modified) {
Images.GL_TextureMode(GlConfig.gl_texturemode.string);
GlConfig.gl_texturemode.modified = false;
}
if (GlConfig.gl_texturealphamode.modified) {
Images.GL_TextureAlphaMode(GlConfig.gl_texturealphamode.string);
GlConfig.gl_texturealphamode.modified = false;
}
if (GlConfig.gl_texturesolidmode.modified) {
Images.GL_TextureSolidMode(GlConfig.gl_texturesolidmode.string);
GlConfig.gl_texturesolidmode.modified = false;
}
/*
* * swapinterval stuff
*/
Misc.GL_UpdateSwapInterval();
//
// clear screen if desired
//
Entities.R_Clear();
}
