Compatibility: Set GL_TEXTURE_MAX_LEVEL to the number of mipmaps

Author: BlueCube3310

drivers/gles3/storage/texture_storage.h

@@ -280,10 +280,10 @@ struct Texture {
 					max_lod = 0;
 				} else if (config->use_nearest_mip_filter) {
 					pmin = GL_NEAREST_MIPMAP_NEAREST;
-					max_lod = 1000;
+					max_lod = mipmaps - 1;
 				} else {
 					pmin = GL_NEAREST_MIPMAP_LINEAR;
-					max_lod = 1000;
+					max_lod = mipmaps - 1;
 				}
 			} break;
 			case RS::CANVAS_ITEM_TEXTURE_FILTER_LINEAR_WITH_MIPMAPS_ANISOTROPIC: {
@@ -297,10 +297,10 @@ struct Texture {
 					max_lod = 0;
 				} else if (config->use_nearest_mip_filter) {
 					pmin = GL_LINEAR_MIPMAP_NEAREST;
-					max_lod = 1000;
+					max_lod = mipmaps - 1;
 				} else {
 					pmin = GL_LINEAR_MIPMAP_LINEAR;
-					max_lod = 1000;
+					max_lod = mipmaps - 1;
 				}
 			} break;
 			default: {