Use gl_texturemode for UI and skies as well, fixes #489 and #491

and make sure that after vid_restart (or starting the game) it's used
correctly in GL3.

While at it, made sure that it's *not* applied to textures from
gl_nolerp_list, because they're supposed to always use GL_NEAREST
independent of this setting (used so console font and crosshairs don't
look blurry)

src/client/refresh/gl1/gl1_image.c

@@ -216,16 +216,21 @@ R_TextureMode(char *string)
 		ri.Cvar_SetValue("gl_anisotropic", 0.0);
 	}
 
+	const char* nolerplist = gl_nolerp_list->string;
+
 	/* change all the existing mipmap texture objects */
 	for (i = 0, glt = gltextures; i < numgltextures; i++, glt++)
 	{
-		if ((glt->type != it_pic) && (glt->type != it_sky))
+		if (nolerplist != NULL && strstr(nolerplist, glt->name) != NULL)
 		{
-			R_Bind(glt->texnum);
+			continue; /* those (by default: font and crosshairs) always only use GL_NEAREST */
-			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
+		}
-					gl_filter_min);
+
-			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER,
+		R_Bind(glt->texnum);
-					gl_filter_max);
+		if ((glt->type != it_pic) && (glt->type != it_sky)) /* mipmapped texture */
+		{
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
 
 			/* Set anisotropic filter if supported and enabled */
 			if (gl_config.anisotropic && gl_anisotropic->value)
@@ -234,6 +239,13 @@ R_TextureMode(char *string)
 						gl_anisotropic->value);
 			}
 		}
+		else /* texture has no mipmaps */
+		{
+			// we can't use gl_filter_min which might be GL_*_MIPMAP_*
+			// also, there's no anisotropic filtering for textures w/o mipmaps
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_max);
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
+		}
 	}
 }
 

src/client/refresh/gl3/gl3_image.c

@@ -64,7 +64,7 @@ GL3_TextureMode(char *string)
 
 	if (i == num_modes)
 	{
-		R_Printf(PRINT_ALL, "bad filter name\n");
+		R_Printf(PRINT_ALL, "bad filter name '%s' (probably from gl_texturemode)\n", string);
 		return;
 	}
 
@@ -90,13 +90,20 @@ GL3_TextureMode(char *string)
 
 	gl3image_t *glt;
 
-	/* change all the existing mipmap texture objects */
+	const char* nolerplist = gl_nolerp_list->string;
+
+	/* change all the existing texture objects */
 	for (i = 0, glt = gl3textures; i < numgl3textures; i++, glt++)
 	{
-		if ((glt->type != it_pic) && (glt->type != it_sky))
+		if (nolerplist != NULL && strstr(nolerplist, glt->name) != NULL)
+		{
+			continue; /* those (by default: font and crosshairs) always only use GL_NEAREST */
+		}
+
+		GL3_SelectTMU(GL_TEXTURE0);
+		GL3_Bind(glt->texnum);
+		if ((glt->type != it_pic) && (glt->type != it_sky)) /* mipmapped texture */
 		{
-			GL3_SelectTMU(GL_TEXTURE0);
-			GL3_Bind(glt->texnum);
 			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
 			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
 
@@ -106,6 +113,13 @@ GL3_TextureMode(char *string)
 				glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, gl_anisotropic->value);
 			}
 		}
+		else /* texture has no mipmaps */
+		{
+			// we can't use gl_filter_min which might be GL_*_MIPMAP_*
+			// also, there's no anisotropic filtering for textures w/o mipmaps
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_max);
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
+		}
 	}
 }
 
@@ -194,7 +208,7 @@ GL3_Upload32(unsigned *data, int width, int height, qboolean mipmap)
 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
 	}
-	else
+	else // if the texture has no mipmaps, we can't use gl_filter_min which might be GL_*_MIPMAP_*
 	{
 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_max);
 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);

src/client/refresh/gl3/gl3_misc.c

@@ -43,8 +43,8 @@ GL3_SetDefaultState(void)
 
 	glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
 
-	// TODO: gl_texturemode, gl1_texturealphamode?
+	// TODO: gl1_texturealphamode?
-	//GL3_TextureMode(gl_texturemode->string);
+	GL3_TextureMode(gl_texturemode->string);
 	//R_TextureAlphaMode(gl1_texturealphamode->string);
 	//R_TextureSolidMode(gl1_texturesolidmode->string);
 

src/client/refresh/gl3/header/local.h

@@ -508,6 +508,7 @@ extern cvar_t *vid_gamma;
 extern cvar_t *gl3_intensity;
 extern cvar_t *gl3_intensity_2D;
 extern cvar_t *gl_anisotropic;
+extern cvar_t *gl_texturemode;
 
 extern cvar_t *r_lightlevel;
 extern cvar_t *gl3_overbrightbits;