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1 #ifndef CHUNK_H_
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2 #define CHUNK_H_
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3
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4 enum {
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5 CNK_INVALID, // this shouldn't appear in files
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6 CNK_SCENE, // the root chunk
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7
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8 // general purpose chunks
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9 CNK_INT,
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10 CNK_UINT,
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11 CNK_FLOAT,
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12 CNK_VEC3,
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13 CNK_VEC4,
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14 CNK_STRING,
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15
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16 // --- first level chunks ---
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17 // children of CNK_SCENE
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18 CNK_ENV, // environmental parameters
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19 CNK_MTL_LIST, // material library
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20 CNK_MESH_LIST, // all the meshes hang under this chunk
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21 CNK_LIGHT_LIST, // likewise for lights
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22 CNK_CAMERA_LIST, // likewise for cameras
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23 CNK_NODE_LIST, // likewise for nodes
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24 CNK_ANIM_LIST, // all animations
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25
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26 // --- second level chunks ---
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27 // children of CNK_ENV
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28 CNK_ENV_AMBIENT, // ambient color, contains a single CNK_VEC3
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29 CNK_ENV_FOG,
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30
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31 // children of CNK_*_LIST
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32 CNK_MTL,
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33 CNK_MESH,
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34 CNK_LIGHT,
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35 CNK_CAMERA,
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36 CNK_NODE,
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37
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38 // --- third level chunks ---
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39 // children of CNK_FOG
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40 CNK_FOG_COLOR, // fog color, contains a single CNK_VEC3
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41 CNK_FOG_EXP, // fog exponent, contains a single CNK_REAL
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42
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43 // children of CNK_MTL
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44 CNK_MTL_ATTR, // material attribute, has a CNK_STRING for its name,
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45 // a CNK_MTL_ATTR_VAL, and optionally a CNK_MTL_ATTR_MAP
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46 // children of CNK_MTL_ATTR
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47 CNK_MTL_ATTR_VAL, // can have a single CNK_FLOAT, CNK_VEC3, or CNK_VEC4
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48 CNK_MTL_ATTR_MAP, // has a single CNK_STRING
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49
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50 // children of CNK_MESH
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51 // TODO...
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52 };
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53
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54 struct ChunkHeader {
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55 uint32_t id;
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56 uint32_t size;
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57 };
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58
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59 struct Chunk {
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60 ChunkHeader hdr;
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61 char data[1];
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62 };
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63
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64 #endif // CHUNK_H_
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