mirror of
https://github.com/DrBeef/Raze.git
synced 2024-11-15 17:01:51 +00:00
610 lines
No EOL
17 KiB
C++
610 lines
No EOL
17 KiB
C++
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#include "filesystem.h"
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#include "cmdlib.h"
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#include "model_iqm.h"
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#include "texturemanager.h"
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#include "modelrenderer.h"
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#include "engineerrors.h"
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IQMModel::IQMModel()
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{
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}
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IQMModel::~IQMModel()
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{
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}
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bool IQMModel::Load(const char* path, int lumpnum, const char* buffer, int length)
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{
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mLumpNum = lumpnum;
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try
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{
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IQMFileReader reader(buffer, length);
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char magic[16];
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reader.Read(magic, 16);
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if (memcmp(magic, "INTERQUAKEMODEL\0", 16) != 0)
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return false;
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uint32_t version = reader.ReadUInt32();
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if (version != 2)
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return false;
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uint32_t filesize = reader.ReadUInt32();
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uint32_t flags = reader.ReadUInt32();
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uint32_t num_text = reader.ReadUInt32();
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uint32_t ofs_text = reader.ReadUInt32();
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uint32_t num_meshes = reader.ReadUInt32();
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uint32_t ofs_meshes = reader.ReadUInt32();
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uint32_t num_vertexarrays = reader.ReadUInt32();
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uint32_t num_vertices = reader.ReadUInt32();
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uint32_t ofs_vertexarrays = reader.ReadUInt32();
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uint32_t num_triangles = reader.ReadUInt32();
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uint32_t ofs_triangles = reader.ReadUInt32();
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uint32_t ofs_adjacency = reader.ReadUInt32();
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uint32_t num_joints = reader.ReadUInt32();
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uint32_t ofs_joints = reader.ReadUInt32();
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uint32_t num_poses = reader.ReadUInt32();
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uint32_t ofs_poses = reader.ReadUInt32();
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uint32_t num_anims = reader.ReadUInt32();
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uint32_t ofs_anims = reader.ReadUInt32();
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uint32_t num_frames = reader.ReadUInt32();
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uint32_t num_framechannels = reader.ReadUInt32();
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uint32_t ofs_frames = reader.ReadUInt32();
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uint32_t ofs_bounds = reader.ReadUInt32();
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uint32_t num_comment = reader.ReadUInt32();
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uint32_t ofs_comment = reader.ReadUInt32();
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uint32_t num_extensions = reader.ReadUInt32();
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uint32_t ofs_extensions = reader.ReadUInt32();
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if (num_meshes <= 0)
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I_FatalError("Invalid model: \"%s%s\", no mesh data is unsupported", path, fileSystem.GetLongName(mLumpNum).GetChars());
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if (num_text == 0)
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return false;
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TArray<char> text(num_text, true);
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reader.SeekTo(ofs_text);
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reader.Read(text.Data(), text.Size());
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text[text.Size() - 1] = 0;
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Meshes.Resize(num_meshes);
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Triangles.Resize(num_triangles);
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Adjacency.Resize(num_triangles);
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Joints.Resize(num_joints);
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Poses.Resize(num_poses);
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Anims.Resize(num_anims);
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Bounds.Resize(num_frames);
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VertexArrays.Resize(num_vertexarrays);
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NumVertices = num_vertices;
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reader.SeekTo(ofs_meshes);
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for (IQMMesh& mesh : Meshes)
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{
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mesh.Name = reader.ReadName(text);
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mesh.Material = reader.ReadName(text);
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mesh.FirstVertex = reader.ReadUInt32();
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mesh.NumVertices = reader.ReadUInt32();
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mesh.FirstTriangle = reader.ReadUInt32();
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mesh.NumTriangles = reader.ReadUInt32();
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mesh.Skin = LoadSkin(path, mesh.Material.GetChars());
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}
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reader.SeekTo(ofs_triangles);
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for (IQMTriangle& triangle : Triangles)
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{
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triangle.Vertex[0] = reader.ReadUInt32();
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triangle.Vertex[1] = reader.ReadUInt32();
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triangle.Vertex[2] = reader.ReadUInt32();
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}
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reader.SeekTo(ofs_adjacency);
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for (IQMAdjacency& adj : Adjacency)
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{
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adj.Triangle[0] = reader.ReadUInt32();
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adj.Triangle[1] = reader.ReadUInt32();
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adj.Triangle[2] = reader.ReadUInt32();
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}
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reader.SeekTo(ofs_joints);
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for (IQMJoint& joint : Joints)
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{
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joint.Name = reader.ReadName(text);
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joint.Parent = reader.ReadInt32();
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joint.Translate.X = reader.ReadFloat();
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joint.Translate.Y = reader.ReadFloat();
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joint.Translate.Z = reader.ReadFloat();
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joint.Quaternion.X = reader.ReadFloat();
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joint.Quaternion.Y = reader.ReadFloat();
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joint.Quaternion.Z = reader.ReadFloat();
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joint.Quaternion.W = reader.ReadFloat();
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joint.Quaternion.MakeUnit();
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joint.Scale.X = reader.ReadFloat();
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joint.Scale.Y = reader.ReadFloat();
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joint.Scale.Z = reader.ReadFloat();
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}
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reader.SeekTo(ofs_poses);
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for (IQMPose& pose : Poses)
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{
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pose.Parent = reader.ReadInt32();
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pose.ChannelMask = reader.ReadUInt32();
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for (int i = 0; i < 10; i++) pose.ChannelOffset[i] = reader.ReadFloat();
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for (int i = 0; i < 10; i++) pose.ChannelScale[i] = reader.ReadFloat();
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}
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reader.SeekTo(ofs_anims);
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for (IQMAnim& anim : Anims)
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{
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anim.Name = reader.ReadName(text);
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anim.FirstFrame = reader.ReadUInt32();
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anim.NumFrames = reader.ReadUInt32();
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anim.Framerate = reader.ReadFloat();
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anim.Loop = !!(reader.ReadUInt32() & 1);
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}
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baseframe.Resize(num_joints);
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inversebaseframe.Resize(num_joints);
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for (uint32_t i = 0; i < num_joints; i++)
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{
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const IQMJoint& j = Joints[i];
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VSMatrix m, invm;
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m.loadIdentity();
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m.translate(j.Translate.X, j.Translate.Y, j.Translate.Z);
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m.multQuaternion(j.Quaternion);
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m.scale(j.Scale.X, j.Scale.Y, j.Scale.Z);
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m.inverseMatrix(invm);
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if (j.Parent >= 0)
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{
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baseframe[i] = baseframe[j.Parent];
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baseframe[i].multMatrix(m);
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inversebaseframe[i] = invm;
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inversebaseframe[i].multMatrix(inversebaseframe[j.Parent]);
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}
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else
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{
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baseframe[i] = m;
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inversebaseframe[i] = invm;
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}
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}
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// Swap YZ axis as we did that with the vertices down in LoadGeometry.
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// This is an unfortunate side effect of the coordinate system in the gzdoom model rendering system
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float swapYZ[16] = { 0.0f };
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swapYZ[0 + 0 * 4] = 1.0f;
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swapYZ[1 + 2 * 4] = 1.0f;
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swapYZ[2 + 1 * 4] = 1.0f;
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swapYZ[3 + 3 * 4] = 1.0f;
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FrameTransforms.Resize(num_frames * num_poses);
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reader.SeekTo(ofs_frames);
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for (uint32_t i = 0; i < num_frames; i++)
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{
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for (uint32_t j = 0; j < num_poses; j++)
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{
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const IQMPose& p = Poses[j];
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FVector3 translate;
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translate.X = p.ChannelOffset[0]; if (p.ChannelMask & 0x01) translate.X += reader.ReadUInt16() * p.ChannelScale[0];
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translate.Y = p.ChannelOffset[1]; if (p.ChannelMask & 0x02) translate.Y += reader.ReadUInt16() * p.ChannelScale[1];
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translate.Z = p.ChannelOffset[2]; if (p.ChannelMask & 0x04) translate.Z += reader.ReadUInt16() * p.ChannelScale[2];
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FVector4 quaternion;
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quaternion.X = p.ChannelOffset[3]; if (p.ChannelMask & 0x08) quaternion.X += reader.ReadUInt16() * p.ChannelScale[3];
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quaternion.Y = p.ChannelOffset[4]; if (p.ChannelMask & 0x10) quaternion.Y += reader.ReadUInt16() * p.ChannelScale[4];
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quaternion.Z = p.ChannelOffset[5]; if (p.ChannelMask & 0x20) quaternion.Z += reader.ReadUInt16() * p.ChannelScale[5];
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quaternion.W = p.ChannelOffset[6]; if (p.ChannelMask & 0x40) quaternion.W += reader.ReadUInt16() * p.ChannelScale[6];
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quaternion.MakeUnit();
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FVector3 scale;
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scale.X = p.ChannelOffset[7]; if (p.ChannelMask & 0x80) scale.X += reader.ReadUInt16() * p.ChannelScale[7];
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scale.Y = p.ChannelOffset[8]; if (p.ChannelMask & 0x100) scale.Y += reader.ReadUInt16() * p.ChannelScale[8];
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scale.Z = p.ChannelOffset[9]; if (p.ChannelMask & 0x200) scale.Z += reader.ReadUInt16() * p.ChannelScale[9];
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VSMatrix m;
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m.loadIdentity();
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m.translate(translate.X, translate.Y, translate.Z);
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m.multQuaternion(quaternion);
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m.scale(scale.X, scale.Y, scale.Z);
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// Concatenate each pose with the inverse base pose to avoid doing this at animation time.
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// If the joint has a parent, then it needs to be pre-concatenated with its parent's base pose.
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// Thus it all negates at animation time like so:
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// (parentPose * parentInverseBasePose) * (parentBasePose * childPose * childInverseBasePose) =>
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// parentPose * (parentInverseBasePose * parentBasePose) * childPose * childInverseBasePose =>
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// parentPose * childPose * childInverseBasePose
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VSMatrix& result = FrameTransforms[i * num_poses + j];
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if (p.Parent >= 0)
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{
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result = baseframe[p.Parent];
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result.multMatrix(m);
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result.multMatrix(inversebaseframe[j]);
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}
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else
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{
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result = m;
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result.multMatrix(inversebaseframe[j]);
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}
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}
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for (uint32_t j = 0; j < num_poses; j++)
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{
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VSMatrix m;
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m.loadMatrix(swapYZ);
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m.multMatrix(FrameTransforms[i * num_poses + j]);
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m.multMatrix(swapYZ);
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FrameTransforms[i * num_poses + j] = m;
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}
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}
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//If a model doesn't have an animation loaded, it will crash. We don't want that!
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if (num_frames <= 0)
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{
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num_frames = 1;
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FrameTransforms.Resize(num_joints);
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for (uint32_t j = 0; j < num_joints; j++)
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{
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FVector3 translate;
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translate.X = Joints[j].Translate.X;
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translate.Y = Joints[j].Translate.Y;
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translate.Z = Joints[j].Translate.Z;
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FVector4 quaternion;
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quaternion.X = Joints[j].Quaternion.X;
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quaternion.Y = Joints[j].Quaternion.Y;
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quaternion.Z = Joints[j].Quaternion.Z;
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quaternion.W = Joints[j].Quaternion.W;
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quaternion.MakeUnit();
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FVector3 scale;
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scale.X = Joints[j].Scale.X;
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scale.Y = Joints[j].Scale.Y;
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scale.Z = Joints[j].Scale.Z;
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VSMatrix m;
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m.loadIdentity();
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m.translate(translate.X, translate.Y, translate.Z);
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m.multQuaternion(quaternion);
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m.scale(scale.X, scale.Y, scale.Z);
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VSMatrix& result = FrameTransforms[j];
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if (Joints[j].Parent >= 0)
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{
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result = baseframe[Joints[j].Parent];
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result.multMatrix(m);
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result.multMatrix(inversebaseframe[j]);
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}
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else
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{
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result = m;
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result.multMatrix(inversebaseframe[j]);
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}
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}
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for (uint32_t j = 0; j < num_joints; j++)
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{
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VSMatrix m;
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m.loadMatrix(swapYZ);
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m.multMatrix(FrameTransforms[j]);
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m.multMatrix(swapYZ);
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FrameTransforms[j] = m;
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}
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}
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reader.SeekTo(ofs_bounds);
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for (IQMBounds& bound : Bounds)
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{
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bound.BBMins[0] = reader.ReadFloat();
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bound.BBMins[1] = reader.ReadFloat();
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bound.BBMins[2] = reader.ReadFloat();
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bound.BBMaxs[0] = reader.ReadFloat();
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bound.BBMaxs[1] = reader.ReadFloat();
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bound.BBMaxs[2] = reader.ReadFloat();
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bound.XYRadius = reader.ReadFloat();
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bound.Radius = reader.ReadFloat();
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}
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reader.SeekTo(ofs_vertexarrays);
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for (IQMVertexArray& vertexArray : VertexArrays)
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{
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vertexArray.Type = (IQMVertexArrayType)reader.ReadUInt32();
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vertexArray.Flags = reader.ReadUInt32();
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vertexArray.Format = (IQMVertexArrayFormat)reader.ReadUInt32();
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vertexArray.Size = reader.ReadUInt32();
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vertexArray.Offset = reader.ReadUInt32();
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}
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return true;
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}
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catch (IQMReadErrorException)
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{
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return false;
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}
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}
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void IQMModel::LoadGeometry()
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{
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try
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{
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FileData lumpdata = fileSystem.ReadFile(mLumpNum);
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IQMFileReader reader(lumpdata.GetMem(), (int)lumpdata.GetSize());
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Vertices.Resize(NumVertices);
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for (IQMVertexArray& vertexArray : VertexArrays)
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{
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reader.SeekTo(vertexArray.Offset);
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if (vertexArray.Type == IQM_POSITION)
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{
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LoadPosition(reader, vertexArray);
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}
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else if (vertexArray.Type == IQM_TEXCOORD)
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{
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LoadTexcoord(reader, vertexArray);
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}
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else if (vertexArray.Type == IQM_NORMAL)
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{
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LoadNormal(reader, vertexArray);
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}
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else if (vertexArray.Type == IQM_BLENDINDEXES)
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{
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LoadBlendIndexes(reader, vertexArray);
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}
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else if (vertexArray.Type == IQM_BLENDWEIGHTS)
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{
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LoadBlendWeights(reader, vertexArray);
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}
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}
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}
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catch (IQMReadErrorException)
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{
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}
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}
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void IQMModel::LoadPosition(IQMFileReader& reader, const IQMVertexArray& vertexArray)
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{
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float lu = 0.0f, lv = 0.0f, lindex = -1.0f;
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if (vertexArray.Format == IQM_FLOAT && vertexArray.Size == 3)
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{
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for (FModelVertex& v : Vertices)
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{
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v.x = reader.ReadFloat();
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v.z = reader.ReadFloat();
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v.y = reader.ReadFloat();
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v.lu = lu;
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v.lv = lv;
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v.lindex = lindex;
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}
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}
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else
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{
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I_FatalError("Unsupported IQM_POSITION vertex format");
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}
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}
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void IQMModel::LoadTexcoord(IQMFileReader& reader, const IQMVertexArray& vertexArray)
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{
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if (vertexArray.Format == IQM_FLOAT && vertexArray.Size == 2)
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{
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for (FModelVertex& v : Vertices)
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{
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v.u = reader.ReadFloat();
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v.v = reader.ReadFloat();
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}
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}
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else
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{
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I_FatalError("Unsupported IQM_TEXCOORD vertex format");
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}
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}
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void IQMModel::LoadNormal(IQMFileReader& reader, const IQMVertexArray& vertexArray)
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{
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if (vertexArray.Format == IQM_FLOAT && vertexArray.Size == 3)
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{
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for (FModelVertex& v : Vertices)
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{
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float x = reader.ReadFloat();
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float y = reader.ReadFloat();
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float z = reader.ReadFloat();
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v.SetNormal(x, z, y);
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}
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}
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else
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{
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I_FatalError("Unsupported IQM_NORMAL vertex format");
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}
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}
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void IQMModel::LoadBlendIndexes(IQMFileReader& reader, const IQMVertexArray& vertexArray)
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{
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if (vertexArray.Format == IQM_UBYTE && vertexArray.Size == 4)
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{
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for (FModelVertex& v : Vertices)
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{
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int x = reader.ReadUByte();
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int y = reader.ReadUByte();
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int z = reader.ReadUByte();
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int w = reader.ReadUByte();
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v.SetBoneSelector(x, y, z, w);
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}
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}
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else if (vertexArray.Format == IQM_INT && vertexArray.Size == 4)
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{
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for (FModelVertex& v : Vertices)
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{
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int x = reader.ReadInt32();
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int y = reader.ReadInt32();
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int z = reader.ReadInt32();
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int w = reader.ReadInt32();
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v.SetBoneSelector(x, y, z, w);
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}
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}
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else
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{
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I_FatalError("Unsupported IQM_BLENDINDEXES vertex format");
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}
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}
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void IQMModel::LoadBlendWeights(IQMFileReader& reader, const IQMVertexArray& vertexArray)
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{
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if (vertexArray.Format == IQM_UBYTE && vertexArray.Size == 4)
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{
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for (FModelVertex& v : Vertices)
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{
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int x = reader.ReadUByte();
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int y = reader.ReadUByte();
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int z = reader.ReadUByte();
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int w = reader.ReadUByte();
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v.SetBoneWeight(x, y, z, w);
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}
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}
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else if (vertexArray.Format == IQM_FLOAT && vertexArray.Size == 4)
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{
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for (FModelVertex& v : Vertices)
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{
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uint8_t x = (int)clamp(reader.ReadFloat() * 255.0f, 0.0f, 255.0f);
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uint8_t y = (int)clamp(reader.ReadFloat() * 255.0f, 0.0f, 255.0f);
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uint8_t z = (int)clamp(reader.ReadFloat() * 255.0f, 0.0f, 255.0f);
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uint8_t w = (int)clamp(reader.ReadFloat() * 255.0f, 0.0f, 255.0f);
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v.SetBoneWeight(x, y, z, w);
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}
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}
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else
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{
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I_FatalError("Unsupported IQM_BLENDWEIGHTS vertex format");
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}
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}
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|
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void IQMModel::UnloadGeometry()
|
|
{
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|
Vertices.Reset();
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}
|
|
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int IQMModel::FindFrame(const char* name, bool nodefault)
|
|
{
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|
// This doesn't really mean all that much for IQM
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|
for (unsigned i = 0; i < Anims.Size(); i++)
|
|
{
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|
if (!stricmp(name, Anims[i].Name.GetChars())) return i;
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|
}
|
|
return FErr_NotFound;
|
|
}
|
|
|
|
void IQMModel::RenderFrame(FModelRenderer* renderer, FGameTexture* skin, int frame1, int frame2, double inter, int translation, const FTextureID* surfaceskinids, const TArray<VSMatrix>& boneData, int boneStartPosition)
|
|
{
|
|
renderer->SetupFrame(this, 0, 0, NumVertices, boneData, boneStartPosition);
|
|
|
|
FGameTexture* lastSkin = nullptr;
|
|
for (unsigned i = 0; i < Meshes.Size(); i++)
|
|
{
|
|
FGameTexture* meshSkin = skin;
|
|
|
|
if (!meshSkin)
|
|
{
|
|
if (surfaceskinids && surfaceskinids[i].isValid())
|
|
{
|
|
meshSkin = TexMan.GetGameTexture(surfaceskinids[i], true);
|
|
}
|
|
else if (!Meshes[i].Skin.isValid())
|
|
{
|
|
continue;
|
|
}
|
|
else
|
|
{
|
|
meshSkin = TexMan.GetGameTexture(Meshes[i].Skin, true);
|
|
}
|
|
if (!meshSkin) continue;
|
|
}
|
|
|
|
if (meshSkin != lastSkin)
|
|
{
|
|
renderer->SetMaterial(meshSkin, false, translation);
|
|
lastSkin = meshSkin;
|
|
}
|
|
|
|
renderer->DrawElements(Meshes[i].NumTriangles * 3, Meshes[i].FirstTriangle * 3 * sizeof(unsigned int));
|
|
}
|
|
}
|
|
|
|
void IQMModel::BuildVertexBuffer(FModelRenderer* renderer)
|
|
{
|
|
if (!GetVertexBuffer(renderer->GetType()))
|
|
{
|
|
LoadGeometry();
|
|
|
|
auto vbuf = renderer->CreateVertexBuffer(true, true);
|
|
SetVertexBuffer(renderer->GetType(), vbuf);
|
|
|
|
FModelVertex* vertptr = vbuf->LockVertexBuffer(Vertices.Size());
|
|
memcpy(vertptr, Vertices.Data(), Vertices.Size() * sizeof(FModelVertex));
|
|
vbuf->UnlockVertexBuffer();
|
|
|
|
unsigned int* indxptr = vbuf->LockIndexBuffer(Triangles.Size() * 3);
|
|
memcpy(indxptr, Triangles.Data(), Triangles.Size() * sizeof(unsigned int) * 3);
|
|
vbuf->UnlockIndexBuffer();
|
|
|
|
UnloadGeometry();
|
|
}
|
|
}
|
|
|
|
void IQMModel::AddSkins(uint8_t* hitlist, const FTextureID* surfaceskinids)
|
|
{
|
|
for (unsigned i = 0; i < Meshes.Size(); i++)
|
|
{
|
|
if (surfaceskinids && surfaceskinids[i].isValid())
|
|
hitlist[surfaceskinids[i].GetIndex()] |= FTextureManager::HIT_Flat;
|
|
}
|
|
}
|
|
|
|
const TArray<VSMatrix>* IQMModel::AttachAnimationData()
|
|
{
|
|
return &FrameTransforms;
|
|
}
|
|
|
|
const TArray<VSMatrix> IQMModel::CalculateBones(int frame1, int frame2, double inter, const TArray<VSMatrix>& animationData)
|
|
{
|
|
const TArray<VSMatrix>& animationFrames = &animationData ? animationData : FrameTransforms;
|
|
|
|
int numbones = Joints.Size();
|
|
|
|
frame1 = clamp(frame1, 0, ((int)animationFrames.Size() - 1) / numbones);
|
|
frame2 = clamp(frame2, 0, ((int)animationFrames.Size() - 1) / numbones);
|
|
|
|
int offset1 = frame1 * numbones;
|
|
int offset2 = frame2 * numbones;
|
|
float t = (float)inter;
|
|
float invt = 1.0f - t;
|
|
|
|
TArray<VSMatrix> bones(numbones, true);
|
|
for (int i = 0; i < numbones; i++)
|
|
{
|
|
const float* from = animationFrames[offset1 + i].get();
|
|
const float* to = animationFrames[offset2 + i].get();
|
|
|
|
// Interpolate bone between the two frames
|
|
float bone[16];
|
|
for (int j = 0; j < 16; j++)
|
|
{
|
|
bone[j] = from[j] * invt + to[j] * t;
|
|
}
|
|
|
|
// Apply parent bone
|
|
if (Joints[i].Parent >= 0)
|
|
{
|
|
bones[i] = bones[Joints[i].Parent];
|
|
bones[i].multMatrix(bone);
|
|
}
|
|
else
|
|
{
|
|
bones[i].loadMatrix(bone);
|
|
}
|
|
}
|
|
|
|
return bones;
|
|
} |