public bool LoadFromVBM(string filename, int vertexIndex, int normalIndex, int texCoord0Index)
{
//FILE * f = NULL;
FileStream f = new FileStream(filename, FileMode.Open, FileAccess.Read);
BinaryReader br = new BinaryReader(f);
//f = fopen(filename, "rb");
//if(f == NULL)
//return false;
//fseek(f, 0, SEEK_END);
//size_t filesize = ftell(f);
//fseek(f, 0, SEEK_SET);
long filesize = f.Length;
//f.Seek(0, SeekOrigin.End);
//f.Seek(0, SeekOrigin.Begin);
byte[] data = new byte[filesize];
UnmanagedArray <byte> raw_data;
f.Read(data, 0, (int)filesize);
//f.Close();
f.Seek(0, SeekOrigin.Begin);
//VBM_HEADER * header = (VBM_HEADER *)data;
VBM_HEADER header = br.ReadStruct <VBM_HEADER>();
//raw_data = data + header.size + header->num_attribs * sizeof(VBM_ATTRIB_HEADER) + header->num_frames * sizeof(VBM_FRAME_HEADER);
//{
// long offset = header.size + header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER)) + header.num_frames * Marshal.SizeOf(typeof(VBM_FRAME_HEADER));
// raw_data = new UnmanagedArray<byte>((int)(data.Length - offset));
// for (int i = 0; i < raw_data.Length; i++)
// {
// raw_data[i] = data[offset+i];
// }
//}
//VBM_ATTRIB_HEADER * attrib_header = (VBM_ATTRIB_HEADER *)(data + header.size);
VBM_ATTRIB_HEADER attrib_header = br.ReadStruct <VBM_ATTRIB_HEADER>();
//VBM_FRAME_HEADER * frame_header = (VBM_FRAME_HEADER *)(data + header.size + header.num_attribs * sizeof(VBM_ATTRIB_HEADER));
{
long offset = header.size + header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER));
f.Seek(offset, SeekOrigin.Begin);
}
VBM_FRAME_HEADER frame_header = br.ReadStruct <VBM_FRAME_HEADER>();
uint total_data_size = 0;
//memcpy(&m_header, header, header.size < Marshal.SizeOf(typeof(VBM_HEADER)) ? header.size : Marshal.SizeOf(typeof(VBM_HEADER)));
this.m_header = header;
//memcpy(m_attrib, attrib_header, header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER)));
{
long offset = header.size;// +header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER));
f.Seek(offset, SeekOrigin.Begin);
}
this.m_attrib = new VBM_ATTRIB_HEADER[header.num_attribs];
for (int i = 0; i < header.num_attribs; i++)
{
this.m_attrib[i] = br.ReadStruct <VBM_ATTRIB_HEADER>();
}
//memcpy(m_frame, frame_header, header.num_frames * Marshal.SizeOf(typeof(VBM_FRAME_HEADER)));
{
long offset = header.size + header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER));// +header.num_frames * Marshal.SizeOf(typeof(VBM_FRAME_HEADER));
f.Seek(offset, SeekOrigin.Begin);
}
this.m_frame = new VBM_FRAME_HEADER[header.num_frames];
for (int i = 0; i < header.num_frames; i++)
{
this.m_frame[i] = br.ReadStruct <VBM_FRAME_HEADER>();
}
GL.GenVertexArrays(1, m_vao);
GL.BindVertexArray(m_vao[0]);
GL.GenBuffers(1, m_attribute_buffer);
GL.BindBuffer(BufferTarget.ArrayBuffer, m_attribute_buffer[0]);
//uint i;
for (uint i = 0; i < header.num_attribs; i++)
{
total_data_size += m_attrib[i].components * sizeof(float) * header.num_vertices;
}
{
long offset = header.size + header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER)) + header.num_frames * Marshal.SizeOf(typeof(VBM_FRAME_HEADER));
raw_data = new UnmanagedArray <byte>((int)total_data_size);
for (int i = 0; i < raw_data.Length; i++)
{
raw_data[i] = data[offset + i];
}
}
//GL.BufferData(GL_ARRAY_BUFFER, total_data_size, raw_data, GL_STATIC_DRAW);
GL.BufferData(BufferTarget.ArrayBuffer, raw_data, BufferUsage.StaticDraw);
total_data_size = 0;
for (uint i = 0; i < header.num_attribs; i++)
{
uint attribIndex = i;
if (attribIndex == 0)
{
attribIndex = (uint)vertexIndex;
}
else if (attribIndex == 1)
{
attribIndex = (uint)normalIndex;
}
else if (attribIndex == 2)
{
attribIndex = (uint)texCoord0Index;
}
GL.VertexAttribPointer(attribIndex, (int)m_attrib[i].components, m_attrib[i].type, false, 0, new IntPtr(total_data_size));
GL.EnableVertexAttribArray(attribIndex);
total_data_size += m_attrib[i].components * sizeof(float) * header.num_vertices;
}
if (header.num_indices > 0)
{
GL.GenBuffers(1, m_index_buffer);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, m_index_buffer[0]);
uint element_size;
if (header.indexype == 0x1403)
{
element_size = sizeof(ushort);
}
else
{
element_size = sizeof(uint);
}
//GL.BufferData(GL_ELEMENT_ARRAY_BUFFER, header.num_indices * element_size, raw_data + total_data_size, GL_STATIC_DRAW);
UnmanagedArray <byte> tmp = new UnmanagedArray <byte>((int)(header.num_indices * element_size));
for (int t = 0; t < tmp.Length; t++)
{
tmp[t] = raw_data[(int)(t + total_data_size)];
}
GL.BufferData(BufferTarget.ElementArrayBuffer, tmp, BufferUsage.StaticDraw);
tmp.Dispose();
}
GL.BindVertexArray(0);
if (m_header.num_materials != 0)
{
m_material = new VBM_MATERIAL[m_header.num_materials];
//memcpy(m_material, raw_data + total_data_size, m_header.num_materials * sizeof(VBM_MATERIAL));
{
var offset = header.size + total_data_size;
f.Seek(offset, SeekOrigin.Begin);
}
for (int t = 0; t < m_header.num_materials; t++)
{
m_material[t] = br.ReadStruct <VBM_MATERIAL>();
}
total_data_size += (uint)(m_header.num_materials * Marshal.SizeOf(typeof(VBM_MATERIAL)));
m_material_textures = new material_texture[m_header.num_materials];
//memset(m_material_textures, 0, m_header.num_materials * sizeof(*m_material_textures));
{
var offset = 0;
f.Seek(0, SeekOrigin.Begin);
}
for (int t = 0; t < m_header.num_materials; t++)
{
m_material_textures[t] = br.ReadStruct <material_texture>();
}
}
if (m_header.num_chunks != 0)
{
m_chunks = new VBM_RENDER_CHUNK[m_header.num_chunks];
//memcpy(m_chunks, raw_data + total_data_size, m_header.num_chunks * sizeof(VBM_RENDER_CHUNK));
{
var offset = m_header.size + total_data_size;
f.Seek(offset, SeekOrigin.Begin);
}
for (int t = 0; t < m_header.num_chunks; t++)
{
m_chunks[t] = br.ReadStruct <VBM_RENDER_CHUNK>();
}
//total_data_size += m_header.num_chunks * sizeof(VBM_RENDER_CHUNK);
}
raw_data.Dispose();
return(true);
}
public bool LoadFromVBM(string filename, int vertexIndex, int normalIndex, int texCoord0Index)
{
//FILE * f = NULL;
FileStream f = new FileStream(filename, FileMode.Open, FileAccess.Read);
BinaryReader br = new BinaryReader(f);
//f = fopen(filename, "rb");
//if(f == NULL)
//return false;
//fseek(f, 0, SEEK_END);
//size_t filesize = ftell(f);
//fseek(f, 0, SEEK_SET);
long filesize = f.Length;
//f.Seek(0, SeekOrigin.End);
//f.Seek(0, SeekOrigin.Begin);
byte[] data = new byte[filesize];
UnmanagedArray<byte> raw_data;
f.Read(data, 0, (int)filesize);
//f.Close();
f.Seek(0, SeekOrigin.Begin);
//VBM_HEADER * header = (VBM_HEADER *)data;
VBM_HEADER header = br.ReadStruct<VBM_HEADER>();
//raw_data = data + header.size + header->num_attribs * sizeof(VBM_ATTRIB_HEADER) + header->num_frames * sizeof(VBM_FRAME_HEADER);
//{
// long offset = header.size + header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER)) + header.num_frames * Marshal.SizeOf(typeof(VBM_FRAME_HEADER));
// raw_data = new UnmanagedArray<byte>((int)(data.Length - offset));
// for (int i = 0; i < raw_data.Length; i++)
// {
// raw_data[i] = data[offset+i];
// }
//}
//VBM_ATTRIB_HEADER * attrib_header = (VBM_ATTRIB_HEADER *)(data + header.size);
VBM_ATTRIB_HEADER attrib_header = br.ReadStruct<VBM_ATTRIB_HEADER>();
//VBM_FRAME_HEADER * frame_header = (VBM_FRAME_HEADER *)(data + header.size + header.num_attribs * sizeof(VBM_ATTRIB_HEADER));
{
long offset = header.size + header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER));
f.Seek(offset, SeekOrigin.Begin);
}
VBM_FRAME_HEADER frame_header = br.ReadStruct<VBM_FRAME_HEADER>();
uint total_data_size = 0;
//memcpy(&m_header, header, header.size < Marshal.SizeOf(typeof(VBM_HEADER)) ? header.size : Marshal.SizeOf(typeof(VBM_HEADER)));
this.m_header = header;
//memcpy(m_attrib, attrib_header, header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER)));
{
long offset = header.size;// +header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER));
f.Seek(offset, SeekOrigin.Begin);
}
this.m_attrib = new VBM_ATTRIB_HEADER[header.num_attribs];
for (int i = 0; i < header.num_attribs; i++)
{
this.m_attrib[i] = br.ReadStruct<VBM_ATTRIB_HEADER>();
}
//memcpy(m_frame, frame_header, header.num_frames * Marshal.SizeOf(typeof(VBM_FRAME_HEADER)));
{
long offset = header.size + header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER));// +header.num_frames * Marshal.SizeOf(typeof(VBM_FRAME_HEADER));
f.Seek(offset, SeekOrigin.Begin);
}
this.m_frame = new VBM_FRAME_HEADER[header.num_frames];
for (int i = 0; i < header.num_frames; i++)
{
this.m_frame[i] = br.ReadStruct<VBM_FRAME_HEADER>();
}
GL.GenVertexArrays(1, m_vao);
GL.BindVertexArray(m_vao[0]);
GL.GenBuffers(1, m_attribute_buffer);
GL.BindBuffer(BufferTarget.ArrayBuffer, m_attribute_buffer[0]);
//uint i;
for (uint i = 0; i < header.num_attribs; i++)
{
total_data_size += m_attrib[i].components * sizeof(float) * header.num_vertices;
}
{
long offset = header.size + header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER)) + header.num_frames * Marshal.SizeOf(typeof(VBM_FRAME_HEADER));
raw_data = new UnmanagedArray<byte>((int)total_data_size);
for (int i = 0; i < raw_data.Length; i++)
{
raw_data[i] = data[offset + i];
}
}
//GL.BufferData(GL_ARRAY_BUFFER, total_data_size, raw_data, GL_STATIC_DRAW);
GL.BufferData(BufferTarget.ArrayBuffer, raw_data, BufferUsage.StaticDraw);
total_data_size = 0;
for (uint i = 0; i < header.num_attribs; i++)
{
uint attribIndex = i;
if (attribIndex == 0)
attribIndex = (uint)vertexIndex;
else if (attribIndex == 1)
attribIndex = (uint)normalIndex;
else if (attribIndex == 2)
attribIndex = (uint)texCoord0Index;
GL.VertexAttribPointer(attribIndex, (int)m_attrib[i].components, m_attrib[i].type, false, 0, new IntPtr(total_data_size));
GL.EnableVertexAttribArray(attribIndex);
total_data_size += m_attrib[i].components * sizeof(float) * header.num_vertices;
}
if (header.num_indices > 0)
{
GL.GenBuffers(1, m_index_buffer);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, m_index_buffer[0]);
uint element_size;
if (header.indexype == 0x1403)
{
element_size = sizeof(ushort);
}
else
{
element_size = sizeof(uint);
}
//GL.BufferData(GL_ELEMENT_ARRAY_BUFFER, header.num_indices * element_size, raw_data + total_data_size, GL_STATIC_DRAW);
UnmanagedArray<byte> tmp = new UnmanagedArray<byte>((int)(header.num_indices * element_size));
for (int t = 0; t < tmp.Length; t++)
{
tmp[t] = raw_data[(int)(t + total_data_size)];
}
GL.BufferData(BufferTarget.ElementArrayBuffer, tmp, BufferUsage.StaticDraw);
tmp.Dispose();
}
GL.BindVertexArray(0);
if (m_header.num_materials != 0)
{
m_material = new VBM_MATERIAL[m_header.num_materials];
//memcpy(m_material, raw_data + total_data_size, m_header.num_materials * sizeof(VBM_MATERIAL));
{
var offset = header.size + total_data_size;
f.Seek(offset, SeekOrigin.Begin);
}
for (int t = 0; t < m_header.num_materials; t++)
{
m_material[t] = br.ReadStruct<VBM_MATERIAL>();
}
total_data_size += (uint)(m_header.num_materials * Marshal.SizeOf(typeof(VBM_MATERIAL)));
m_material_textures = new material_texture[m_header.num_materials];
//memset(m_material_textures, 0, m_header.num_materials * sizeof(*m_material_textures));
{
var offset = 0;
f.Seek(0, SeekOrigin.Begin);
}
for (int t = 0; t < m_header.num_materials; t++)
{
m_material_textures[t] = br.ReadStruct<material_texture>();
}
}
if (m_header.num_chunks != 0)
{
m_chunks = new VBM_RENDER_CHUNK[m_header.num_chunks];
//memcpy(m_chunks, raw_data + total_data_size, m_header.num_chunks * sizeof(VBM_RENDER_CHUNK));
{
var offset = m_header.size + total_data_size;
f.Seek(offset, SeekOrigin.Begin);
}
for (int t = 0; t < m_header.num_chunks; t++)
{
m_chunks[t] = br.ReadStruct<VBM_RENDER_CHUNK>();
}
//total_data_size += m_header.num_chunks * sizeof(VBM_RENDER_CHUNK);
}
raw_data.Dispose();
return true;
}