3 Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU Lesser General Public License as published by
7 the Free Software Foundation; either version 2.1 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public License along
16 with this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22 #include "irrlichttypes.h"
27 #include <SMaterial.h>
29 #include "util/numeric.h"
35 typedef std::vector<video::SColor> Palette;
38 tile.{h,cpp}: Texture handling stuff.
42 Find out the full path of an image by trying different filename
47 TODO: Should probably be moved out from here, because things needing
48 this function do not need anything else from this header
50 std::string getImagePath(std::string path);
53 Gets the path to a texture by first checking if the texture exists
54 in texture_path and if not, using the data path.
56 Checks all supported extensions by replacing the original extension.
58 If not found, returns "".
60 Utilizes a thread-safe cache.
62 std::string getTexturePath(const std::string &filename);
64 void clearTextureNameCache();
67 ITextureSource::generateTextureFromMesh parameters
69 namespace irr {namespace scene {class IMesh;}}
70 struct TextureFromMeshParams
72 scene::IMesh *mesh = nullptr;
73 core::dimension2d<u32> dim;
74 std::string rtt_texture_name;
75 bool delete_texture_on_shutdown;
78 core::CMatrix4<f32> camera_projection_matrix;
79 video::SColorf ambient_light;
81 video::SColorf light_color;
86 TextureSource creates and caches textures.
89 class ISimpleTextureSource
92 ISimpleTextureSource() = default;
94 virtual ~ISimpleTextureSource() = default;
96 virtual video::ITexture* getTexture(
97 const std::string &name, u32 *id = nullptr) = 0;
100 class ITextureSource : public ISimpleTextureSource
103 ITextureSource() = default;
105 virtual ~ITextureSource() = default;
107 virtual u32 getTextureId(const std::string &name)=0;
108 virtual std::string getTextureName(u32 id)=0;
109 virtual video::ITexture* getTexture(u32 id)=0;
110 virtual video::ITexture* getTexture(
111 const std::string &name, u32 *id = nullptr)=0;
112 virtual video::ITexture* getTextureForMesh(
113 const std::string &name, u32 *id = nullptr) = 0;
115 * Returns a palette from the given texture name.
116 * The pointer is valid until the texture source is
118 * Should be called from the main thread.
120 virtual Palette* getPalette(const std::string &name) = 0;
121 virtual bool isKnownSourceImage(const std::string &name)=0;
122 virtual video::ITexture* generateTextureFromMesh(
123 const TextureFromMeshParams ¶ms)=0;
124 virtual video::ITexture* getNormalTexture(const std::string &name)=0;
125 virtual video::SColor getTextureAverageColor(const std::string &name)=0;
126 virtual video::ITexture *getShaderFlagsTexture(bool normalmap_present)=0;
129 class IWritableTextureSource : public ITextureSource
132 IWritableTextureSource() = default;
134 virtual ~IWritableTextureSource() = default;
136 virtual u32 getTextureId(const std::string &name)=0;
137 virtual std::string getTextureName(u32 id)=0;
138 virtual video::ITexture* getTexture(u32 id)=0;
139 virtual video::ITexture* getTexture(
140 const std::string &name, u32 *id = nullptr)=0;
141 virtual bool isKnownSourceImage(const std::string &name)=0;
142 virtual video::ITexture* generateTextureFromMesh(
143 const TextureFromMeshParams ¶ms)=0;
145 virtual void processQueue()=0;
146 virtual void insertSourceImage(const std::string &name, video::IImage *img)=0;
147 virtual void rebuildImagesAndTextures()=0;
148 virtual video::ITexture* getNormalTexture(const std::string &name)=0;
149 virtual video::SColor getTextureAverageColor(const std::string &name)=0;
150 virtual video::ITexture *getShaderFlagsTexture(bool normalmap_present)=0;
153 IWritableTextureSource *createTextureSource();
156 video::IImage * Align2Npot2(video::IImage * image, video::IVideoDriver* driver);
162 TILE_MATERIAL_LIQUID_TRANSPARENT,
163 TILE_MATERIAL_LIQUID_OPAQUE,
164 TILE_MATERIAL_WAVING_LEAVES,
165 TILE_MATERIAL_WAVING_PLANTS,
170 // Should backface culling be enabled?
171 #define MATERIAL_FLAG_BACKFACE_CULLING 0x01
172 // Should a crack be drawn?
173 #define MATERIAL_FLAG_CRACK 0x02
174 // Should the crack be drawn on transparent pixels (unset) or not (set)?
175 // Ignored if MATERIAL_FLAG_CRACK is not set.
176 #define MATERIAL_FLAG_CRACK_OVERLAY 0x04
177 #define MATERIAL_FLAG_ANIMATION 0x08
178 //#define MATERIAL_FLAG_HIGHLIGHTED 0x10
179 #define MATERIAL_FLAG_TILEABLE_HORIZONTAL 0x20
180 #define MATERIAL_FLAG_TILEABLE_VERTICAL 0x40
183 This fully defines the looks of a tile.
184 The SMaterial of a tile is constructed according to this.
188 FrameSpec() = default;
191 video::ITexture *texture = nullptr;
192 video::ITexture *normal_texture = nullptr;
193 video::ITexture *flags_texture = nullptr;
196 #define MAX_TILE_LAYERS 2
198 //! Defines a layer of a tile.
201 TileLayer() = default;
204 * Two layers are equal if they can be merged.
206 bool operator==(const TileLayer &other) const
209 texture_id == other.texture_id &&
210 material_type == other.material_type &&
211 material_flags == other.material_flags &&
212 color == other.color;
216 * Two tiles are not equal if they must have different vertices.
218 bool operator!=(const TileLayer &other) const
220 return !(*this == other);
223 // Sets everything else except the texture in the material
224 void applyMaterialOptions(video::SMaterial &material) const
226 switch (material_type) {
227 case TILE_MATERIAL_OPAQUE:
228 case TILE_MATERIAL_LIQUID_OPAQUE:
229 material.MaterialType = video::EMT_SOLID;
231 case TILE_MATERIAL_BASIC:
232 case TILE_MATERIAL_WAVING_LEAVES:
233 case TILE_MATERIAL_WAVING_PLANTS:
234 material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
236 case TILE_MATERIAL_ALPHA:
237 case TILE_MATERIAL_LIQUID_TRANSPARENT:
238 material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
241 material.BackfaceCulling = (material_flags & MATERIAL_FLAG_BACKFACE_CULLING) != 0;
242 if (!(material_flags & MATERIAL_FLAG_TILEABLE_HORIZONTAL)) {
243 material.TextureLayer[0].TextureWrapU = video::ETC_CLAMP_TO_EDGE;
245 if (!(material_flags & MATERIAL_FLAG_TILEABLE_VERTICAL)) {
246 material.TextureLayer[0].TextureWrapV = video::ETC_CLAMP_TO_EDGE;
250 void applyMaterialOptionsWithShaders(video::SMaterial &material) const
252 material.BackfaceCulling = (material_flags & MATERIAL_FLAG_BACKFACE_CULLING) != 0;
253 if (!(material_flags & MATERIAL_FLAG_TILEABLE_HORIZONTAL)) {
254 material.TextureLayer[0].TextureWrapU = video::ETC_CLAMP_TO_EDGE;
255 material.TextureLayer[1].TextureWrapU = video::ETC_CLAMP_TO_EDGE;
257 if (!(material_flags & MATERIAL_FLAG_TILEABLE_VERTICAL)) {
258 material.TextureLayer[0].TextureWrapV = video::ETC_CLAMP_TO_EDGE;
259 material.TextureLayer[1].TextureWrapV = video::ETC_CLAMP_TO_EDGE;
263 bool isTileable() const
265 return (material_flags & MATERIAL_FLAG_TILEABLE_HORIZONTAL)
266 && (material_flags & MATERIAL_FLAG_TILEABLE_VERTICAL);
269 // Ordered for size, please do not reorder
271 video::ITexture *texture = nullptr;
272 video::ITexture *normal_texture = nullptr;
273 video::ITexture *flags_texture = nullptr;
279 u16 animation_frame_length_ms = 0;
280 u8 animation_frame_count = 1;
282 u8 material_type = TILE_MATERIAL_BASIC;
284 //0 // <- DEBUG, Use the one below
285 MATERIAL_FLAG_BACKFACE_CULLING |
286 MATERIAL_FLAG_TILEABLE_HORIZONTAL|
287 MATERIAL_FLAG_TILEABLE_VERTICAL;
289 //! If true, the tile has its own color.
290 bool has_color = false;
292 std::shared_ptr<std::vector<FrameSpec>> frames = nullptr;
295 * The color of the tile, or if the tile does not own
296 * a color then the color of the node owning this tile.
302 * Defines a face of a node. May have up to two layers.
307 for (int layer = 0; layer < MAX_TILE_LAYERS; layer++)
308 layers[layer] = TileLayer();
312 * Returns true if this tile can be merged with the other tile.
314 bool isTileable(const TileSpec &other) const {
315 for (int layer = 0; layer < MAX_TILE_LAYERS; layer++) {
316 if (layers[layer] != other.layers[layer])
318 if (!layers[layer].isTileable())
322 && rotation == other.rotation
323 && emissive_light == other.emissive_light;
327 //! This much light does the tile emit.
328 u8 emissive_light = 0;
329 //! The first is base texture, the second is overlay.
330 TileLayer layers[MAX_TILE_LAYERS];