From: bones_was_here <bones_was_here@xonotic.au>
Date: Tue, 7 May 2024 08:29:09 +0000 (+1000)
Subject: CLVM: add cvar to support mods wanting low resolution 2D
X-Git-Url: https://git.rm.cloudns.org/?a=commitdiff_plain;h=70b6ed368f90863dec4e457b954039d0f26fb040;p=xonotic%2Fdarkplaces.git

CLVM: add cvar to support mods wanting low resolution 2D

Signed-off-by: bones_was_here <bones_was_here@xonotic.au>
---

diff --git a/cl_main.c b/cl_main.c
index dd961172..71443f14 100644
--- a/cl_main.c
+++ b/cl_main.c
@@ -37,6 +37,7 @@ cvar_t csqc_progcrc = {CF_CLIENT | CF_READONLY, "csqc_progcrc","-1","CRC of cspr
 cvar_t csqc_progsize = {CF_CLIENT | CF_READONLY, "csqc_progsize","-1","file size of csprogs.dat file to load (-1 is none), only used during level changes and then reset to -1"};
 cvar_t csqc_usedemoprogs = {CF_CLIENT, "csqc_usedemoprogs","1","use csprogs stored in demos"};
 cvar_t csqc_polygons_defaultmaterial_nocullface = {CF_CLIENT, "csqc_polygons_defaultmaterial_nocullface", "0", "use 'cull none' behavior in the default shader for rendering R_PolygonBegin - warning: enabling this is not consistent with FTEQW behavior on this feature"};
+cvar_t csqc_lowres = {CF_CLIENT, "csqc_lowres", "0", "make EXT_CSQC functions CSQC_UpdateView(), setproperty(), getproperty() use the virtual 2D resolution (FTEQW/QSS behaviour) instead of the real resolution (DP behaviour); this mode is always used for the CSQC_SIMPLE (aka hud-only) CSQC_DrawHud() parameters; see cvars vid_conheight and vid_conwidth"};
 
 cvar_t cl_shownet = {CF_CLIENT, "cl_shownet","0","1 = print packet size, 2 = print packet message list"};
 cvar_t cl_nolerp = {CF_CLIENT, "cl_nolerp", "0","network update smoothing"};
@@ -3118,6 +3119,7 @@ void CL_Init (void)
 		Cmd_AddCommand(CF_CLIENT, "locs_save", CL_Locs_Save_f, "save .loc file for this map containing currently defined points and boxes");
 
 		Cvar_RegisterVariable(&csqc_polygons_defaultmaterial_nocullface);
+		Cvar_RegisterVariable(&csqc_lowres);
 
 		Cvar_RegisterVariable (&cl_minfps);
 		Cvar_RegisterVariable (&cl_minfps_fade);
diff --git a/clvm_cmds.c b/clvm_cmds.c
index 5ba1b3e5..96551b92 100644
--- a/clvm_cmds.c
+++ b/clvm_cmds.c
@@ -976,9 +976,27 @@ static void VM_CL_R_SetView (prvm_prog_t *prog)
 			VM_Warning(prog, "VM_CL_R_GetView : unknown parm %i\n", c);
 			return;
 		}
+		if (csqc_lowres.integer)
+		{
+			switch(c)
+			{
+				case VF_MIN: case VF_MIN_X: case VF_MIN_Y: case VF_SIZE: case VF_SIZE_X: case VF_SIZE_Y: case VF_VIEWPORT:
+					VectorScale(PRVM_G_VECTOR(OFS_RETURN), vid_conwidth.value / vid.mode.width, PRVM_G_VECTOR(OFS_RETURN));
+			}
+		}
 		return;
 	}
 
+	if (csqc_lowres.integer)
+	{
+		float scale = vid.mode.width / vid_conwidth.value;
+		switch(c)
+		{
+			case VF_MIN: case VF_MIN_X: case VF_MIN_Y: case VF_SIZE: case VF_SIZE_X: case VF_SIZE_Y: case VF_VIEWPORT:
+				VectorScale(PRVM_G_VECTOR(OFS_PARM1), scale, PRVM_G_VECTOR(OFS_PARM1));
+				VectorScale(PRVM_G_VECTOR(OFS_PARM2), scale, PRVM_G_VECTOR(OFS_PARM2));
+		}
+	}
 	f = PRVM_G_VECTOR(OFS_PARM1);
 	k = PRVM_G_FLOAT(OFS_PARM1);
 	switch(c)
diff --git a/csprogs.c b/csprogs.c
index ac2fbf1b..b868b4fb 100644
--- a/csprogs.c
+++ b/csprogs.c
@@ -510,8 +510,16 @@ qbool CL_VM_UpdateView (double frametime)
 	// free memory for resources that are no longer referenced
 	PRVM_GarbageCollection(prog);
 	// pass in width and height and menu/focus state as parameters (EXT_CSQC_1)
-	PRVM_G_FLOAT(OFS_PARM0) = vid.mode.width;
-	PRVM_G_FLOAT(OFS_PARM1) = vid.mode.height;
+	if (csqc_lowres.integer)
+	{
+		PRVM_G_FLOAT(OFS_PARM0) = vid_conwidth.value;
+		PRVM_G_FLOAT(OFS_PARM1) = vid_conheight.value;
+	}
+	else
+	{
+		PRVM_G_FLOAT(OFS_PARM0) = vid.mode.width;
+		PRVM_G_FLOAT(OFS_PARM1) = vid.mode.height;
+	}
 	/*
 	 * This should be fine for now but FTEQW uses flags for keydest
 	 * and checks that an array called "eyeoffset" is 0
diff --git a/csprogs.h b/csprogs.h
index 1900f91c..922c8c52 100644
--- a/csprogs.h
+++ b/csprogs.h
@@ -97,6 +97,7 @@ extern cvar_t csqc_progname;	//[515]: csqc crc check and right csprogs name acco
 extern cvar_t csqc_progcrc;
 extern cvar_t csqc_progsize;
 extern cvar_t csqc_polygons_defaultmaterial_nocullface;
+extern cvar_t csqc_lowres;
 
 void CL_VM_PreventInformationLeaks(void);