[GLN64] Add EnableTexCoordBounds core option

GLideN64/src/Config.cpp

@@ -59,7 +59,7 @@ void Config::resetToDefaults()
 	graphics2D.correctTexrectCoords = tcDisable;
 	graphics2D.enableNativeResTexrects = NativeResTexrectsMode::ntDisable;
 	graphics2D.bgMode = BGMode::bgOnePiece;
-	graphics2D.enableTexCoordBounds = 1;
+	graphics2D.enableTexCoordBounds = 0;
 
 	frameBufferEmulation.enable = 1;
 	frameBufferEmulation.copyDepthToRDRAM = cdSoftwareRender;

custom/GLideN64/mupenplus/Config_mupenplus.cpp

@@ -199,6 +199,7 @@ extern "C" void Config_LoadConfig()
 	config.frameBufferEmulation.overscanPAL.bottom = OverscanBottom;
 
 	config.graphics2D.correctTexrectCoords = CorrectTexrectCoords;
+	config.graphics2D.enableTexCoordBounds = EnableTexCoordBounds;
 	config.graphics2D.enableNativeResTexrects = enableNativeResTexrects;
 
 	config.graphics2D.bgMode = BackgroundMode;

custom/mupen64plus-next_common.h

@@ -91,6 +91,7 @@ extern uint32_t EnableDitheringQuantization;
 extern uint32_t RDRAMImageDitheringMode;
 extern uint32_t EnableHWLighting;
 extern uint32_t CorrectTexrectCoords;
+extern uint32_t EnableTexCoordBounds;
 extern uint32_t enableNativeResTexrects;
 extern uint32_t enableLegacyBlending;
 extern uint32_t EnableCopyColorToRDRAM;

libretro/libretro.c

@@ -163,6 +163,7 @@ uint32_t RDRAMImageDitheringMode = 0;
 uint32_t EnableDitheringQuantization = 0;
 uint32_t EnableHWLighting = 0;
 uint32_t CorrectTexrectCoords = 0;
+uint32_t EnableTexCoordBounds = 0;
 uint32_t enableNativeResTexrects = 0;
 uint32_t enableLegacyBlending = 0;
 uint32_t EnableCopyColorToRDRAM = 0;
@@ -1018,6 +1019,13 @@ static void update_variables(bool startup)
              CorrectTexrectCoords = 0;
        }
 
+       var.key = CORE_NAME "-EnableTexCoordBounds";
+       var.value = NULL;
+       if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
+       {
+          EnableTexCoordBounds = !strcmp(var.value, "False") ? 0 : 1;
+       }
+
        var.key = CORE_NAME "-BackgroundMode";
        var.value = NULL;
        if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)

libretro/libretro_core_options.h

@@ -361,6 +361,17 @@ struct retro_core_option_definition option_defs_us[] = {
         },
         "Off"
     },
+    {
+        CORE_NAME "-EnableTexCoordBounds",
+        "Enable native-res boundaries for texture coordinates",
+        "(GLN64) Bound texture rectangle texture coordinates to the values they take in native resolutions. It prevents garbage due to fetching out of texture bounds, but can result in hard edges.",
+        {
+            {"False", NULL},
+            {"True", NULL},
+            {NULL, NULL},
+        },
+        "False"
+    },
     {
         CORE_NAME "-EnableNativeResTexrects",
         "Native res. 2D texrects",