goat3d

annotate src/chunk.h @ 23:b59a3650ed51

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mac fixes
author John Tsiombikas <nuclear@member.fsf.org>
date Fri, 27 Sep 2013 07:20:22 +0300
parents 798df5111b56
children da3f335e0069
rev   line source
nuclear@1 1 #ifndef CHUNK_H_
nuclear@1 2 #define CHUNK_H_
nuclear@1 3
nuclear@9 4 #include <stdint.h>
nuclear@9 5
nuclear@1 6 enum {
nuclear@1 7 CNK_INVALID, // this shouldn't appear in files
nuclear@1 8 CNK_SCENE, // the root chunk
nuclear@1 9
nuclear@1 10 // general purpose chunks
nuclear@1 11 CNK_INT,
nuclear@2 12 CNK_INT4,
nuclear@1 13 CNK_FLOAT,
nuclear@2 14 CNK_FLOAT3,
nuclear@2 15 CNK_FLOAT4,
nuclear@1 16 CNK_STRING,
nuclear@1 17
nuclear@1 18 // --- first level chunks ---
nuclear@1 19 // children of CNK_SCENE
nuclear@1 20 CNK_ENV, // environmental parameters
nuclear@14 21 CNK_MTL, // material
nuclear@14 22 CNK_MESH,
nuclear@14 23 CNK_LIGHT,
nuclear@14 24 CNK_CAMERA,
nuclear@14 25 CNK_NODE,
nuclear@1 26
nuclear@1 27 // --- second level chunks ---
nuclear@1 28 // children of CNK_ENV
nuclear@2 29 CNK_ENV_AMBIENT, // ambient color, contains a single CNK_FLOAT3
nuclear@1 30 CNK_ENV_FOG,
nuclear@1 31
nuclear@1 32 // --- third level chunks ---
nuclear@1 33 // children of CNK_FOG
nuclear@2 34 CNK_FOG_COLOR, // fog color, contains a single CNK_FLOAT3
nuclear@14 35 CNK_FOG_EXP, // fog exponent, contains a single CNK_FLOAT
nuclear@1 36
nuclear@1 37 // children of CNK_MTL
nuclear@14 38 CNK_MTL_NAME, // has a single CNK_STRING
nuclear@1 39 CNK_MTL_ATTR, // material attribute, has a CNK_STRING for its name,
nuclear@1 40 // a CNK_MTL_ATTR_VAL, and optionally a CNK_MTL_ATTR_MAP
nuclear@1 41 // children of CNK_MTL_ATTR
nuclear@14 42 CNK_MTL_ATTR_NAME, // has a single CNK_STRING
nuclear@2 43 CNK_MTL_ATTR_VAL, // can have a single CNK_FLOAT, CNK_FLOAT3, or CNK_FLOAT4
nuclear@1 44 CNK_MTL_ATTR_MAP, // has a single CNK_STRING
nuclear@1 45
nuclear@1 46 // children of CNK_MESH
nuclear@2 47 CNK_MESH_NAME, // has a single CNK_STRING
nuclear@2 48 CNK_MESH_MATERIAL, // has one of CNK_STRING or CNK_INT to identify the material
nuclear@2 49 CNK_MESH_VERTEX_LIST, // has a series of CNK_FLOAT3 chunks
nuclear@2 50 CNK_MESH_NORMAL_LIST, // has a series of CNK_FLOAT3 chunks
nuclear@2 51 CNK_MESH_TANGENT_LIST, // has a series of CNK_FLOAT3 chunks
nuclear@2 52 CNK_MESH_TEXCOORD_LIST, // has a series of CNK_FLOAT3 chunks
nuclear@2 53 CNK_MESH_SKINWEIGHT_LIST, // has a series of CNK_FLOAT4 chunks (4 skin weights)
nuclear@2 54 CNK_MESH_SKINMATRIX_LIST, // has a series of CNK_INT4 chunks (4 matrix indices)
nuclear@2 55 CNK_MESH_COLOR_LIST, // has a series of CNK_FLOAT4 chunks
nuclear@2 56 CNK_MESH_BONES_LIST, // has a series of CNK_INT or CNK_STRING chunks identifying the bone nodes
nuclear@8 57 CNK_MESH_FACE_LIST, // has a series of CNK_FACE chunks
nuclear@14 58 CNK_MESH_FILE, // optionally mesh data may be in another file, has a CNK_STRING filename
nuclear@8 59
nuclear@8 60 // child of CNK_MESH_FACE_LIST
nuclear@8 61 CNK_MESH_FACE, // has three CNK_INT chunks
nuclear@2 62
nuclear@2 63 // children of CNK_LIGHT
nuclear@2 64 CNK_LIGHT_NAME, // has a single CNK_STRING
nuclear@2 65 CNK_LIGHT_POS, // has a single CNK_FLOAT3
nuclear@2 66 CNK_LIGHT_COLOR, // has a single CNK_FLOAT3
nuclear@2 67 CNK_LIGHT_ATTEN, // has a single CNK_FLOAT3 (constant, linear, squared attenuation)
nuclear@2 68 CNK_LIGHT_DISTANCE, // has a single CNK_FLOAT
nuclear@2 69 CNK_LIGHT_DIR, // a single CNK_FLOAT3 (for spotlights and dir-lights)
nuclear@2 70 CNK_LIGHT_CONE_INNER, // single CNK_FLOAT, inner cone angle (for spotlights)
nuclear@2 71 CNK_LIGHT_CONE_OUTER, // single CNK_FLOAT, outer cone angle (for spotlights)
nuclear@2 72
nuclear@2 73 // children of CNK_CAMERA
nuclear@2 74 CNK_CAMERA_NAME, // has a single CNK_STRING
nuclear@2 75 CNK_CAMERA_POS, // single CNK_FLOAT3
nuclear@2 76 CNK_CAMERA_TARGET, // single CNK_FLOAT3
nuclear@2 77 CNK_CAMERA_FOV, // single CNK_FLOAT (field of view in radians)
nuclear@2 78 CNK_CAMERA_NEARCLIP, // single CNK_FLOAT (near clipping plane distance)
nuclear@2 79 CNK_CAMERA_FARCLIP, // signle CNK_FLOAT (far clipping plane distance)
nuclear@2 80
nuclear@2 81 // children of CNK_NODE
nuclear@2 82 CNK_NODE_NAME, // node name, a single CNK_STRING
nuclear@2 83 CNK_NODE_PARENT, // it can have a CNK_INT or a CNK_STRING to identify the parent node
nuclear@2 84
nuclear@2 85 CNK_NODE_MESH, // it can have a CNK_INT or a CNK_STRING to identify this node's mesh
nuclear@2 86 CNK_NODE_LIGHT, // same as CNK_NODE_MESH
nuclear@2 87 CNK_NODE_CAMERA, // same as CNK_NODE_MESH
nuclear@2 88
nuclear@14 89 CNK_NODE_POS, // has a CNK_FLOAT3, position vector
nuclear@14 90 CNK_NODE_ROT, // has a CNK_FLOAT4, rotation quaternion (x, y, z imaginary, w real)
nuclear@14 91 CNK_NODE_SCALE, // has a CNK_FLOAT3, scaling
nuclear@14 92 CNK_NODE_PIVOT, // has a CNK_FLOAT3, pivot point
nuclear@2 93
nuclear@14 94 CNK_NODE_MATRIX0, // has a CNK_FLOAT4, first matrix row (4x3)
nuclear@14 95 CNK_NODE_MATRXI1, // has a CNK_FLOAT4, second matrix row (4x3)
nuclear@14 96 CNK_NODE_MATRIX2, // has a CNK_FLOAT4, third matrix row (4x3)
nuclear@2 97
nuclear@2 98 MAX_NUM_CHUNKS
nuclear@1 99 };
nuclear@1 100
nuclear@9 101 #define UNKNOWN_SIZE ((uint32_t)0xbaadf00d)
nuclear@9 102
nuclear@1 103 struct ChunkHeader {
nuclear@1 104 uint32_t id;
nuclear@1 105 uint32_t size;
nuclear@1 106 };
nuclear@1 107
nuclear@1 108 struct Chunk {
nuclear@1 109 ChunkHeader hdr;
nuclear@1 110 char data[1];
nuclear@1 111 };
nuclear@1 112
nuclear@9 113
nuclear@13 114 ChunkHeader chunk_header(int id);
nuclear@13 115 bool write_chunk_header(const ChunkHeader *hdr, goat3d_io *io);
nuclear@13 116 bool read_chunk_header(ChunkHeader *hdr, goat3d_io *io);
nuclear@13 117 void skip_chunk(const ChunkHeader *hdr, goat3d_io *io);
nuclear@13 118
nuclear@9 119
nuclear@1 120 #endif // CHUNK_H_