From ea229edb2c175660546a226aa2610df2a0d81b24 Mon Sep 17 00:00:00 2001
From: Alibek Omarov <a1ba.omarov@gmail.com>
Date: Thu, 21 Dec 2023 04:11:52 +0300
Subject: [PATCH] client: add hud_allow_hd cvar that increases available HUD
 spritesheet resolutions up to 1280 and 2560

---
 cl_dll/ammo.cpp  |  5 +----
 cl_dll/cl_util.h | 21 +++++++++++++++++++++
 cl_dll/hud.cpp   |  6 ++----
 cl_dll/hud.h     |  1 +
 cl_dll/util.cpp  |  7 +------
 5 files changed, 26 insertions(+), 14 deletions(-)

diff --git a/cl_dll/ammo.cpp b/cl_dll/ammo.cpp
index dd89495b..d8e0d10b 100644
--- a/cl_dll/ammo.cpp
+++ b/cl_dll/ammo.cpp
@@ -75,10 +75,7 @@ void WeaponsResource::LoadWeaponSprites( WEAPON *pWeapon )
 {
 	int i, iRes;
 
-	if( ScreenWidth < 640 )
-		iRes = 320;
-	else
-		iRes = 640;
+	iRes = GetSpriteRes( ScreenWidth, ScreenHeight );
 
 	char sz[256];
 
diff --git a/cl_dll/cl_util.h b/cl_dll/cl_util.h
index 65275c69..c5c25169 100644
--- a/cl_dll/cl_util.h
+++ b/cl_dll/cl_util.h
@@ -153,6 +153,27 @@ inline void PlaySound( int iSound, float vol ) { gEngfuncs.pfnPlaySoundByIndex(
 #define Q_min(a, b)  (((a) < (b)) ? (a) : (b))
 #define fabs(x)	   ((x) > 0 ? (x) : 0 - (x))
 
+inline int GetSpriteRes( int width, int height )
+{
+	int i;
+
+	if( width < 640 )
+		i = 320;
+	else if( width < 1280 || !gHUD.m_pAllowHD->value )
+		i = 640;
+	else
+	{
+		if( height <= 720 )
+			i = 640;
+		else if( width <= 2560 || height <= 1600 )
+			i = 1280;
+		else
+			i = 2560;
+	}
+
+	return i;
+}
+
 void ScaleColors( int &r, int &g, int &b, int a );
 
 #define DotProduct(x, y) ((x)[0] * (y)[0] + (x)[1] * (y)[1] + (x)[2] * (y)[2])
diff --git a/cl_dll/hud.cpp b/cl_dll/hud.cpp
index 86f0f6cd..853f34da 100644
--- a/cl_dll/hud.cpp
+++ b/cl_dll/hud.cpp
@@ -379,6 +379,7 @@ void CHud::Init( void )
 	default_fov = CVAR_CREATE( "default_fov", "90", FCVAR_ARCHIVE );
 	m_pCvarStealMouse = CVAR_CREATE( "hud_capturemouse", "1", FCVAR_ARCHIVE );
 	m_pCvarDraw = CVAR_CREATE( "hud_draw", "1", FCVAR_ARCHIVE );
+	m_pAllowHD = CVAR_CREATE ( "hud_allow_hd", "1", FCVAR_ARCHIVE );
 	cl_lw = gEngfuncs.pfnGetCvarPointer( "cl_lw" );
 	cl_viewbob = CVAR_CREATE( "cl_viewbob", "1", FCVAR_ARCHIVE );
 
@@ -483,10 +484,7 @@ void CHud::VidInit( void )
 	m_hsprLogo = 0;	
 	m_hsprCursor = 0;
 
-	if( ScreenWidth < 640 )
-		m_iRes = 320;
-	else
-		m_iRes = 640;
+	m_iRes = GetSpriteRes( ScreenWidth, ScreenHeight );
 
 	// Only load this once
 	if( !m_pSpriteList )
diff --git a/cl_dll/hud.h b/cl_dll/hud.h
index 69c6646f..6bd3d9a3 100644
--- a/cl_dll/hud.h
+++ b/cl_dll/hud.h
@@ -557,6 +557,7 @@ public:
 	int		m_iRes;
 	cvar_t  *m_pCvarStealMouse;
 	cvar_t	*m_pCvarDraw;
+	cvar_t  *m_pAllowHD;
 
 	int m_iFontHeight;
 	int DrawHudNumber( int x, int y, int iFlags, int iNumber, int r, int g, int b );
diff --git a/cl_dll/util.cpp b/cl_dll/util.cpp
index ec5c796f..f12cd1b5 100644
--- a/cl_dll/util.cpp
+++ b/cl_dll/util.cpp
@@ -123,14 +123,9 @@ void VectorMA( const float *veca, float scale, const float *vecb, float *vecc )
 
 HSPRITE LoadSprite( const char *pszName )
 {
-	int i;
+	int i = GetSpriteRes( ScreenWidth, ScreenHeight );
 	char sz[256];
 
-	if( ScreenWidth < 640 )
-		i = 320;
-	else
-		i = 640;
-
 	sprintf( sz, pszName, i );
 
 	return SPR_Load( sz );