From a738b2a50bc6384d710315333098c105f498522e Mon Sep 17 00:00:00 2001
From: Alibek Omarov <a1ba.omarov@gmail.com>
Date: Fri, 6 Oct 2023 19:24:02 +0300
Subject: [PATCH] ref: restore missing PARM_TEX_MEMORY RenderAPI parameter

---
 ref/gl/gl_context.c  |  2 ++
 ref/gl/gl_image.c    | 19 ++++++++++++++++++-
 ref/gl/gl_local.h    |  1 +
 ref/soft/r_context.c |  2 ++
 ref/soft/r_image.c   | 17 +++++++++++++++++
 ref/soft/r_local.h   |  2 ++
 6 files changed, 42 insertions(+), 1 deletion(-)

diff --git a/ref/gl/gl_context.c b/ref/gl/gl_context.c
index cd71ce43..5e35659c 100644
--- a/ref/gl/gl_context.c
+++ b/ref/gl/gl_context.c
@@ -212,6 +212,8 @@ static int GL_RefGetParm( int parm, int arg )
 	case PARM_TEX_FLAGS:
 		glt = R_GetTexture( arg );
 		return glt->flags;
+	case PARM_TEX_MEMORY:
+		return GL_TexMemory();
 	case PARM_ACTIVE_TMU:
 		return glState.activeTMU;
 	case PARM_LIGHTSTYLEVALUE:
diff --git a/ref/gl/gl_image.c b/ref/gl/gl_image.c
index 737ba49f..ffe9411d 100644
--- a/ref/gl/gl_image.c
+++ b/ref/gl/gl_image.c
@@ -1607,7 +1607,7 @@ int GL_LoadTextureArray( const char **names, int flags )
 
 		len += ret;
 	}
-	
+
 	COM_FileBase( names[i], basename, sizeof( basename ));
 	ret = Q_snprintf( &name[len], sizeof( name ) - len, "%s[%i]", basename, numLayers );
 
@@ -1943,6 +1943,23 @@ void GL_ProcessTexture( int texnum, float gamma, int topColor, int bottomColor )
 	gEngfuncs.FS_FreeImage( pic );
 }
 
+/*
+================
+GL_TexMemory
+
+return size of all uploaded textures
+================
+*/
+int GL_TexMemory( void )
+{
+	int	i, total = 0;
+
+	for( i = 0; i < gl_numTextures; i++ )
+		total += gl_textures[i].size;
+
+	return total;
+}
+
 /*
 ==============================================================================
 
diff --git a/ref/gl/gl_local.h b/ref/gl/gl_local.h
index f53f4561..bddfc307 100644
--- a/ref/gl/gl_local.h
+++ b/ref/gl/gl_local.h
@@ -366,6 +366,7 @@ void R_InitDlightTexture( void );
 void R_TextureList_f( void );
 void R_InitImages( void );
 void R_ShutdownImages( void );
+int GL_TexMemory( void );
 
 //
 // gl_rlight.c
diff --git a/ref/soft/r_context.c b/ref/soft/r_context.c
index 6ab73ae2..ece7fb64 100644
--- a/ref/soft/r_context.c
+++ b/ref/soft/r_context.c
@@ -147,6 +147,8 @@ static int GL_RefGetParm( int parm, int arg )
 	case PARM_TEX_FLAGS:
 		glt = R_GetTexture( arg );
 		return glt->flags;
+	case PARM_TEX_MEMORY:
+		return R_TexMemory();
 	case PARM_ACTIVE_TMU:
 		return  0; //glState.activeTMU;
 	case PARM_LIGHTSTYLEVALUE:
diff --git a/ref/soft/r_image.c b/ref/soft/r_image.c
index b02437c9..933e8cf7 100644
--- a/ref/soft/r_image.c
+++ b/ref/soft/r_image.c
@@ -1199,6 +1199,23 @@ void GAME_EXPORT GL_ProcessTexture( int texnum, float gamma, int topColor, int b
 	gEngfuncs.FS_FreeImage( pic );
 }
 
+/*
+================
+R_TexMemory
+
+return size of all uploaded textures
+================
+*/
+int R_TexMemory( void )
+{
+	int	i, total = 0;
+
+	for( i = 0; i < r_numImages; i++ )
+		total += r_images[i].size;
+
+	return total;
+}
+
 /*
 ==============================================================================
 
diff --git a/ref/soft/r_local.h b/ref/soft/r_local.h
index 7a465db1..d4e132df 100644
--- a/ref/soft/r_local.h
+++ b/ref/soft/r_local.h
@@ -448,6 +448,8 @@ void R_InitDlightTexture( void );
 void R_TextureList_f( void );
 void R_InitImages( void );
 void R_ShutdownImages( void );
+int R_TexMemory( void );
+
 #if 1
 //
 // gl_rlight.c