initial commit, 4.5 stable

modules/gltf/structures/gltf_texture_sampler.h

@@ -0,0 +1,159 @@
+/**************************************************************************/
+/*  gltf_texture_sampler.h                                                */
+/**************************************************************************/
+/*                         This file is part of:                          */
+/*                             GODOT ENGINE                               */
+/*                        https://godotengine.org                         */
+/**************************************************************************/
+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
+/*                                                                        */
+/* Permission is hereby granted, free of charge, to any person obtaining  */
+/* a copy of this software and associated documentation files (the        */
+/* "Software"), to deal in the Software without restriction, including    */
+/* without limitation the rights to use, copy, modify, merge, publish,    */
+/* distribute, sublicense, and/or sell copies of the Software, and to     */
+/* permit persons to whom the Software is furnished to do so, subject to  */
+/* the following conditions:                                              */
+/*                                                                        */
+/* The above copyright notice and this permission notice shall be         */
+/* included in all copies or substantial portions of the Software.        */
+/*                                                                        */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
+/**************************************************************************/
+
+#pragma once
+
+#include "scene/resources/material.h"
+
+class GLTFTextureSampler : public Resource {
+	GDCLASS(GLTFTextureSampler, Resource);
+
+public:
+	enum FilterMode {
+		NEAREST = 9728,
+		LINEAR = 9729,
+		NEAREST_MIPMAP_NEAREST = 9984,
+		LINEAR_MIPMAP_NEAREST = 9985,
+		NEAREST_MIPMAP_LINEAR = 9986,
+		LINEAR_MIPMAP_LINEAR = 9987
+	};
+
+	enum WrapMode {
+		CLAMP_TO_EDGE = 33071,
+		MIRRORED_REPEAT = 33648,
+		REPEAT = 10497,
+		DEFAULT = REPEAT
+	};
+
+	int get_mag_filter() const {
+		return mag_filter;
+	}
+
+	void set_mag_filter(const int filter_mode) {
+		mag_filter = (FilterMode)filter_mode;
+	}
+
+	int get_min_filter() const {
+		return min_filter;
+	}
+
+	void set_min_filter(const int filter_mode) {
+		min_filter = (FilterMode)filter_mode;
+	}
+
+	int get_wrap_s() const {
+		return wrap_s;
+	}
+
+	void set_wrap_s(const int wrap_mode) {
+		wrap_s = (WrapMode)wrap_mode;
+	}
+
+	int get_wrap_t() const {
+		return wrap_t;
+	}
+
+	void set_wrap_t(const int wrap_mode) {
+		wrap_s = (WrapMode)wrap_mode;
+	}
+
+	StandardMaterial3D::TextureFilter get_filter_mode() const {
+		using TextureFilter = StandardMaterial3D::TextureFilter;
+
+		switch (min_filter) {
+			case NEAREST:
+				return TextureFilter::TEXTURE_FILTER_NEAREST;
+			case LINEAR:
+				return TextureFilter::TEXTURE_FILTER_LINEAR;
+			case NEAREST_MIPMAP_NEAREST:
+			case NEAREST_MIPMAP_LINEAR:
+				return TextureFilter::TEXTURE_FILTER_NEAREST_WITH_MIPMAPS;
+			case LINEAR_MIPMAP_NEAREST:
+			case LINEAR_MIPMAP_LINEAR:
+			default:
+				return TextureFilter::TEXTURE_FILTER_LINEAR_WITH_MIPMAPS;
+		}
+	}
+
+	void set_filter_mode(StandardMaterial3D::TextureFilter mode) {
+		using TextureFilter = StandardMaterial3D::TextureFilter;
+
+		switch (mode) {
+			case TextureFilter::TEXTURE_FILTER_NEAREST:
+				min_filter = FilterMode::NEAREST;
+				mag_filter = FilterMode::NEAREST;
+				break;
+			case TextureFilter::TEXTURE_FILTER_LINEAR:
+				min_filter = FilterMode::LINEAR;
+				mag_filter = FilterMode::LINEAR;
+				break;
+			case TextureFilter::TEXTURE_FILTER_NEAREST_WITH_MIPMAPS:
+			case TextureFilter::TEXTURE_FILTER_NEAREST_WITH_MIPMAPS_ANISOTROPIC:
+				min_filter = FilterMode::NEAREST_MIPMAP_LINEAR;
+				mag_filter = FilterMode::NEAREST;
+				break;
+			case TextureFilter::TEXTURE_FILTER_LINEAR_WITH_MIPMAPS:
+			case TextureFilter::TEXTURE_FILTER_LINEAR_WITH_MIPMAPS_ANISOTROPIC:
+			default:
+				min_filter = FilterMode::LINEAR_MIPMAP_LINEAR;
+				mag_filter = FilterMode::LINEAR;
+				break;
+		}
+	}
+
+	bool get_wrap_mode() const {
+		// BaseMaterial3D presents wrapping as a boolean property. Either the texture is repeated
+		// in both dimensions, non-mirrored, or it isn't repeated at all. This will cause oddities
+		// when people import models having other wrapping mode combinations.
+		return (wrap_s == WrapMode::REPEAT) && (wrap_t == WrapMode::REPEAT);
+	}
+
+	void set_wrap_mode(bool mat_repeats) {
+		if (mat_repeats) {
+			wrap_s = WrapMode::REPEAT;
+			wrap_t = WrapMode::REPEAT;
+		} else {
+			wrap_s = WrapMode::CLAMP_TO_EDGE;
+			wrap_t = WrapMode::CLAMP_TO_EDGE;
+		}
+	}
+
+protected:
+	static void _bind_methods();
+
+private:
+	FilterMode mag_filter = FilterMode::LINEAR;
+	FilterMode min_filter = FilterMode::LINEAR_MIPMAP_LINEAR;
+	WrapMode wrap_s = WrapMode::REPEAT;
+	WrapMode wrap_t = WrapMode::REPEAT;
+};
+
+VARIANT_ENUM_CAST(GLTFTextureSampler::FilterMode);
+VARIANT_ENUM_CAST(GLTFTextureSampler::WrapMode);