From c29cf3db99c7910f5e5646bfd00053d723d4f766 Mon Sep 17 00:00:00 2001
From: Spoike <acceptthis@users.sourceforge.net>
Date: Wed, 16 Jul 2008 00:19:33 +0000
Subject: [PATCH] Framerate will be more stable when picking up items/getting
 shot/etc.

git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@3025 fc73d0e0-1445-4013-8a0c-d673dee63da5
---
 engine/client/render.h   |  2 +-
 engine/client/renderer.c |  4 ++--
 engine/client/view.c     | 35 +++++++++++++++++++++++------------
 engine/gl/gl_rmain.c     |  2 +-
 4 files changed, 27 insertions(+), 16 deletions(-)

diff --git a/engine/client/render.h b/engine/client/render.h
index a6556bc9c..824cfe65c 100644
--- a/engine/client/render.h
+++ b/engine/client/render.h
@@ -494,7 +494,7 @@ extern	cvar_t	gl_cull;
 extern	cvar_t	gl_poly;
 extern	cvar_t	gl_smoothmodels;
 extern	cvar_t	gl_affinemodels;
-extern	cvar_t	gl_polyblend;
+extern	cvar_t	gl_nohwblend;
 extern	cvar_t	gl_keeptjunctions;
 extern	cvar_t	gl_reporttjunctions;
 extern	cvar_t	r_flashblend;
diff --git a/engine/client/renderer.c b/engine/client/renderer.c
index 38f15c39f..14594c69c 100644
--- a/engine/client/renderer.c
+++ b/engine/client/renderer.c
@@ -302,7 +302,7 @@ cvar_t gl_overbright_all					= SCVARF ("gl_overbright_all", "0",
 												CVAR_ARCHIVE);
 cvar_t gl_picmip							= SCVAR  ("gl_picmip", "0");
 cvar_t gl_picmip2d							= SCVAR  ("gl_picmip2d", "0");
-cvar_t gl_polyblend							= SCVAR  ("gl_polyblend","1");
+cvar_t gl_nohwblend							= SCVAR  ("gl_nohwblend","1");
 cvar_t gl_savecompressedtex					= SCVAR  ("gl_savecompressedtex", "0");
 cvar_t gl_schematics						= SCVAR  ("gl_schematics", "0");
 cvar_t gl_skyboxdist						= SCVAR  ("gl_skyboxdist", "2300");
@@ -389,7 +389,7 @@ void GLRenderer_Init(void)
 	Cvar_Register (&gl_cull, GLRENDEREROPTIONS);
 	Cvar_Register (&gl_smoothmodels, GRAPHICALNICETIES);
 	Cvar_Register (&gl_affinemodels, GLRENDEREROPTIONS);
-	Cvar_Register (&gl_polyblend, GLRENDEREROPTIONS);
+	Cvar_Register (&gl_nohwblend, GLRENDEREROPTIONS);
 	Cvar_Register (&r_flashblend, GLRENDEREROPTIONS);
 	Cvar_Register (&gl_playermip, GLRENDEREROPTIONS);
 	Cvar_Register (&gl_nocolors, GLRENDEREROPTIONS);
diff --git a/engine/client/view.c b/engine/client/view.c
index 2e875f4ef..0c9fe4fbc 100644
--- a/engine/client/view.c
+++ b/engine/client/view.c
@@ -84,6 +84,7 @@ cvar_t	crosshairimage = SCVARF("crosshairimage", "", CVAR_RENDERERCALLBACK);
 cvar_t	crosshairalpha = SCVAR("crosshairalpha", "1");
 
 cvar_t	gl_cshiftpercent = SCVAR("gl_cshiftpercent", "100");
+cvar_t	gl_cshiftenabled = SCVAR("gl_polyblend", "1");
 
 cvar_t	v_bonusflash = SCVAR("v_bonusflash", "1");
 
@@ -652,11 +653,7 @@ void GLV_CalcBlend (void)
 	{
 //		if (j != CSHIFT_SERVER)
 //		{
-			if (!gl_cshiftpercent.value
-#ifdef RGLQUAKE
-				|| !gl_polyblend.value
-#endif
-				)
+			if (!gl_cshiftpercent.value || !gl_cshiftenabled.value)
 				continue;
 
 			a2 = ((cl.cshifts[j].percent * gl_cshiftpercent.value) / 100.0) / 255.0;
@@ -709,17 +706,28 @@ void GLV_UpdatePalette (qboolean force, double ftime)
 
 	for (i=0 ; i<CSHIFT_SERVER ; i++)
 	{
-		if (cl.cshifts[i].percent != cl.prev_cshifts[i].percent)
+		if (gl_nohwblend.value || !gl_cshiftenabled.value)
 		{
-			update = true;
-			cl.prev_cshifts[i].percent = cl.cshifts[i].percent;
-		}
-		for (j=0 ; j<3 ; j++)
-			if (cl.cshifts[i].destcolor[j] != cl.prev_cshifts[i].destcolor[j])
+			if (0 != cl.prev_cshifts[i].percent)
 			{
 				update = true;
-				cl.prev_cshifts[i].destcolor[j] = cl.cshifts[i].destcolor[j];
+				cl.prev_cshifts[i].percent = 0;
 			}
+		}
+		else
+		{
+			if (cl.cshifts[i].percent != cl.prev_cshifts[i].percent)
+			{
+				update = true;
+				cl.prev_cshifts[i].percent = cl.cshifts[i].percent;
+			}
+			for (j=0 ; j<3 ; j++)
+				if (cl.cshifts[i].destcolor[j] != cl.prev_cshifts[i].destcolor[j])
+				{
+					update = true;
+					cl.prev_cshifts[i].destcolor[j] = cl.cshifts[i].destcolor[j];
+				}
+		}
 	}
 
 // drop the damage value
@@ -737,6 +745,8 @@ void GLV_UpdatePalette (qboolean force, double ftime)
 		GLV_CalcBlend ();
 
 		a = v_blend[3];
+		if (gl_nohwblend.value)
+			a = 0;
 		r = 255*v_blend[0]*a;
 		g = 255*v_blend[1]*a;
 		b = 255*v_blend[2]*a;
@@ -1656,6 +1666,7 @@ void V_Init (void)
 	Cvar_Register (&cl_crossx, VIEWVARS);
 	Cvar_Register (&cl_crossy, VIEWVARS);
 	Cvar_Register (&gl_cshiftpercent, VIEWVARS);
+	Cvar_Register (&gl_cshiftenabled, VIEWVARS);
 
 	Cvar_Register (&cl_rollspeed, VIEWVARS);
 	Cvar_Register (&cl_rollangle, VIEWVARS);
diff --git a/engine/gl/gl_rmain.c b/engine/gl/gl_rmain.c
index 10c48991c..218c7e2ba 100644
--- a/engine/gl/gl_rmain.c
+++ b/engine/gl/gl_rmain.c
@@ -790,7 +790,7 @@ void R_PolyBlend (void)
 {
 	float shift[4];
 	extern qboolean gammaworks;
-	if ((!v_blend[3] || gammaworks) && !cl.cshifts[CSHIFT_SERVER].percent)
+	if ((!v_blend[3] || !gl_nohwblend.value) && !cl.cshifts[CSHIFT_SERVER].percent)
 		return;
 
 	GLV_CalcBlendServer(shift);	//figure out the shift we need (normally just the server specified one)