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Added MD5 (md5mesh works, md5anim has not yet been tested) and STL. new unittests, although not yet complete (material system, normals). Bugfixes (GFn and MDL7). Added HMP5 support. Rewrote MD2 and MD3 to be more stable.

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git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@77 67173fc5-114c-0410-ac8e-9d2fd5bffc1f
This commit is contained in:
aramis_acg
2008-08-06 23:01:38 +00:00
parent b17a5e3b69
commit 2f36cc5f5f
45 changed files with 3625 additions and 932 deletions
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248
code/HMPLoader.cpp
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@@ -41,9 +41,12 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
/** @file Implementation of the MDL importer class */
// internal headers
#include "MaterialSystem.h"
#include "HMPLoader.h"
#include "MD2FileData.h"
// public ASSIMP headers
#include "../include/DefaultLogger.h"
#include "../include/IOStream.h"
#include "../include/IOSystem.h"
@@ -51,12 +54,11 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "../include/aiScene.h"
#include "../include/aiAssert.h"
// boost headers
#include <boost/scoped_ptr.hpp>
using namespace Assimp;
extern float g_avNormals[162][3];
// ------------------------------------------------------------------------------------------------
// Constructor to be privately used by Importer
HMPImporter::HMPImporter()
@@ -103,12 +105,12 @@ void HMPImporter::InternReadFile(
throw new ImportErrorException( "Failed to open HMP file " + pFile + ".");
}
// check whether the ply file is large enough to contain
// check whether the HMP file is large enough to contain
// at least the file header
size_t fileSize = file->FileSize();
if( fileSize < 50)
{
throw new ImportErrorException( ".hmp File is too small.");
throw new ImportErrorException( "HMP File is too small.");
}
// allocate storage and copy the contents of the file to a memory buffer
@@ -147,9 +149,17 @@ void HMPImporter::InternReadFile(
}
else
{
// print the magic word to the logger
char szBuffer[5];
szBuffer[0] = ((char*)&iMagic)[0];
szBuffer[1] = ((char*)&iMagic)[1];
szBuffer[2] = ((char*)&iMagic)[2];
szBuffer[3] = ((char*)&iMagic)[3];
szBuffer[4] = '\0';
// we're definitely unable to load this file
throw new ImportErrorException( "Unknown HMP subformat " + pFile +
". Magic word is not known");
". Magic word (" + szBuffer + ") is not known");
}
} catch (ImportErrorException* ex) {
@@ -161,39 +171,42 @@ void HMPImporter::InternReadFile(
delete[] this->mBuffer;
return;
}
// ------------------------------------------------------------------------------------------------
void HMPImporter::ValidateHeader_HMP457( )
{
const HMP::Header_HMP5* const pcHeader = (const HMP::Header_HMP5*)this->mBuffer;
if (120 > this->iFileSize)
{
throw new ImportErrorException("HMP file is too small (header size is "
"120 bytes, this file is smaller)");
}
if (!pcHeader->ftrisize_x || !pcHeader->ftrisize_y)
{
throw new ImportErrorException("Size of triangles in either x or y direction is zero");
}
if(pcHeader->fnumverts_x < 1.0f || (pcHeader->numverts/pcHeader->fnumverts_x) < 1.0f)
{
throw new ImportErrorException("Number of triangles in either x or y direction is zero");
}
if(!pcHeader->numframes)
{
throw new ImportErrorException("There are no frames. At least one should be there");
}
}
// ------------------------------------------------------------------------------------------------
void HMPImporter::InternReadFile_HMP4( )
{
throw new ImportErrorException("HMP4 is currently not supported");
}
// ------------------------------------------------------------------------------------------------
void HMPImporter::InternReadFile_HMP5( )
{
throw new ImportErrorException("HMP4 is currently not supported");
}
// ------------------------------------------------------------------------------------------------
void HMPImporter::InternReadFile_HMP7( )
{
if (120 > this->iFileSize)
{
throw new ImportErrorException("HMP7 file is too small (header size is "
"120 bytes, this file is smaller)");
}
// read the file header and skip everything to byte 84
const HMP::Header_HMP5* pcHeader = (const HMP::Header_HMP5*)this->mBuffer;
const unsigned char* szCurrent = (const unsigned char*)(this->mBuffer+84);
if (!pcHeader->ftrisize_x || !pcHeader->ftrisize_y ||
pcHeader->fnumverts_x < 1.0f || (pcHeader->numverts/pcHeader->fnumverts_x) < 1.0f ||
!pcHeader->numframes)
{
throw new ImportErrorException("One or more of the values in the HMP7 "
"file header are invalid.");
}
this->ValidateHeader_HMP457();
// generate an output mesh
this->pScene->mNumMeshes = 1;
@@ -207,6 +220,120 @@ void HMPImporter::InternReadFile_HMP7( )
const unsigned int height = (unsigned int)(pcHeader->numverts / pcHeader->fnumverts_x);
const unsigned int width = (unsigned int)pcHeader->fnumverts_x;
// generate/load a material for the terrain
this->CreateMaterial(szCurrent,&szCurrent);
// goto offset 120, I don't know why ...
// (fixme) is this the frame header? I assume yes since it starts with 2.
szCurrent += 36;
this->SizeCheck(szCurrent + sizeof(const HMP::Vertex_HMP7)*height*width);
// now load all vertices from the file
aiVector3D* pcVertOut = pcMesh->mVertices;
aiVector3D* pcNorOut = pcMesh->mNormals;
const HMP::Vertex_HMP5* src = (const HMP::Vertex_HMP5*) szCurrent;
for (unsigned int y = 0; y < height;++y)
{
for (unsigned int x = 0; x < width;++x)
{
pcVertOut->x = x * pcHeader->ftrisize_x;
pcVertOut->y = y * pcHeader->ftrisize_y;
pcVertOut->z = (((float)src->z / 0xffff)-0.5f) * pcHeader->ftrisize_x * 8.0f;
MD2::LookupNormalIndex(src->normals162index, *pcNorOut );
++pcVertOut;++pcNorOut;++src;
}
}
// generate texture coordinates if necessary
if (pcHeader->numskins)this->GenerateTextureCoords(width,height);
// now build a list of faces
this->CreateOutputFaceList(width,height);
// there is no nodegraph in HMP files. Simply assign the one mesh
// (no, not the one ring) to the root node
this->pScene->mRootNode = new aiNode();
this->pScene->mRootNode->mName.Set("terrain_root");
this->pScene->mRootNode->mNumMeshes = 1;
this->pScene->mRootNode->mMeshes = new unsigned int[1];
this->pScene->mRootNode->mMeshes[0] = 0;
}
// ------------------------------------------------------------------------------------------------
void HMPImporter::InternReadFile_HMP7( )
{
// read the file header and skip everything to byte 84
const HMP::Header_HMP5* const pcHeader = (const HMP::Header_HMP5*)this->mBuffer;
const unsigned char* szCurrent = (const unsigned char*)(this->mBuffer+84);
this->ValidateHeader_HMP457();
// generate an output mesh
this->pScene->mNumMeshes = 1;
this->pScene->mMeshes = new aiMesh*[1];
aiMesh* pcMesh = this->pScene->mMeshes[0] = new aiMesh();
pcMesh->mMaterialIndex = 0;
pcMesh->mVertices = new aiVector3D[pcHeader->numverts];
pcMesh->mNormals = new aiVector3D[pcHeader->numverts];
const unsigned int height = (unsigned int)(pcHeader->numverts / pcHeader->fnumverts_x);
const unsigned int width = (unsigned int)pcHeader->fnumverts_x;
// generate/load a material for the terrain
this->CreateMaterial(szCurrent,&szCurrent);
// goto offset 120, I don't know why ...
// (fixme) is this the frame header? I assume yes since it starts with 2.
szCurrent += 36;
this->SizeCheck(szCurrent + sizeof(const HMP::Vertex_HMP7)*height*width);
// now load all vertices from the file
aiVector3D* pcVertOut = pcMesh->mVertices;
aiVector3D* pcNorOut = pcMesh->mNormals;
const HMP::Vertex_HMP7* src = (const HMP::Vertex_HMP7*) szCurrent;
for (unsigned int y = 0; y < height;++y)
{
for (unsigned int x = 0; x < width;++x)
{
pcVertOut->x = x * pcHeader->ftrisize_x;
pcVertOut->y = y * pcHeader->ftrisize_y;
// FIXME: What exctly is the correct scaling factor to use?
// possibly pcHeader->scale_origin[2] in combination with a
// signed interpretation of src->z?
pcVertOut->z = (((float)src->z / 0xffff)-0.5f) * pcHeader->ftrisize_x * 8.0f;
pcNorOut->x = ((float)src->normal_x / 0x80 ); // * pcHeader->scale_origin[0];
pcNorOut->y = ((float)src->normal_y / 0x80 ); // * pcHeader->scale_origin[1];
pcNorOut->z = 1.0f;
pcNorOut->Normalize();
++pcVertOut;++pcNorOut;++src;
}
}
// generate texture coordinates if necessary
if (pcHeader->numskins)this->GenerateTextureCoords(width,height);
// now build a list of faces
this->CreateOutputFaceList(width,height);
// there is no nodegraph in HMP files. Simply assign the one mesh
// (no, not the One Ring) to the root node
this->pScene->mRootNode = new aiNode();
this->pScene->mRootNode->mName.Set("terrain_root");
this->pScene->mRootNode->mNumMeshes = 1;
this->pScene->mRootNode->mMeshes = new unsigned int[1];
this->pScene->mRootNode->mMeshes[0] = 0;
}
// ------------------------------------------------------------------------------------------------
void HMPImporter::CreateMaterial(const unsigned char* szCurrent,
const unsigned char** szCurrentOut)
{
aiMesh* const pcMesh = this->pScene->mMeshes[0];
const HMP::Header_HMP5* const pcHeader = (const HMP::Header_HMP5*)this->mBuffer;
// we don't need to generate texture coordinates if
// we have no textures in the file ...
if (pcHeader->numskins)
@@ -225,7 +352,7 @@ void HMPImporter::InternReadFile_HMP7( )
pcHelper->AddProperty<int>(&iMode, 1, AI_MATKEY_SHADING_MODEL);
aiColor3D clr;
clr.b = clr.g = clr.r = 0.7f;
clr.b = clr.g = clr.r = 0.6f;
pcHelper->AddProperty<aiColor3D>(&clr, 1,AI_MATKEY_COLOR_DIFFUSE);
pcHelper->AddProperty<aiColor3D>(&clr, 1,AI_MATKEY_COLOR_SPECULAR);
@@ -241,45 +368,14 @@ void HMPImporter::InternReadFile_HMP7( )
this->pScene->mMaterials = new aiMaterial*[1];
this->pScene->mMaterials[0] = pcHelper;
}
*szCurrentOut = szCurrent;
}
// ------------------------------------------------------------------------------------------------
void HMPImporter::CreateOutputFaceList(unsigned int width,unsigned int height)
{
aiMesh* const pcMesh = this->pScene->mMeshes[0];
// goto offset 120, I don't know why ...
// (fixme) is this the frame header? I assume yes since it starts
// with 2.
szCurrent += 36;
this->SizeCheck(szCurrent + sizeof(const HMP::Vertex_HMP7)*height*width);
// now load all vertices from the file
aiVector3D* pcVertOut = pcMesh->mVertices;
aiVector3D* pcNorOut = pcMesh->mNormals;
const HMP::Vertex_HMP7* src = (const HMP::Vertex_HMP7*) szCurrent;
for (unsigned int y = 0; y < height;++y)
{
for (unsigned int x = 0; x < width;++x)
{
pcVertOut->x = x * pcHeader->ftrisize_x;
pcVertOut->y = y * pcHeader->ftrisize_y;
// FIXME: What exctly is the correct scaling factor to use?
// possibly pcHeader->scale_origin[2] in combination with a
// signed interpretation of src->z?
pcVertOut->z = (((float)src->z / 0xffff)-0.5f) * pcHeader->ftrisize_x * 8.0f;
pcNorOut->x = ((float)src->normal_x / 0x80 ); // * pcHeader->scale_origin[0];
pcNorOut->y = ((float)src->normal_y / 0x80 ); // * pcHeader->scale_origin[1];
pcNorOut->z = 1.0f;
pcNorOut->Normalize();
++pcVertOut;++pcNorOut;++src;
}
}
// generate texture coordinates if necessary
if (pcHeader->numskins)
{
this->GenerateTextureCoords(width,height);
}
// now build a list of faces
// allocate enough storage
const unsigned int iNumSquares = (width-1) * (height-1);
pcMesh->mNumFaces = iNumSquares << 1;
pcMesh->mFaces = new aiFace[pcMesh->mNumFaces];
@@ -289,12 +385,13 @@ void HMPImporter::InternReadFile_HMP7( )
aiVector3D* pcNormals = new aiVector3D[pcMesh->mNumVertices];
aiFace* pcFaceOut(pcMesh->mFaces);
pcVertOut = pcVertices;
pcNorOut = pcNormals;
aiVector3D* pcVertOut = pcVertices;
aiVector3D* pcNorOut = pcNormals;
aiVector3D* pcUVs = pcMesh->mTextureCoords[0] ? new aiVector3D[pcMesh->mNumVertices] : NULL;
aiVector3D* pcUVOut(pcUVs);
// build the terrain square
unsigned int iCurrent = 0;
for (unsigned int y = 0; y < height-1;++y)
{
@@ -360,16 +457,6 @@ void HMPImporter::InternReadFile_HMP7( )
delete[] pcMesh->mTextureCoords[0];
pcMesh->mTextureCoords[0] = pcUVs;
}
// there is no nodegraph in HMP files. Simply assign the one mesh
// (no, not the one ring) to the root node
this->pScene->mRootNode = new aiNode();
this->pScene->mRootNode->mName.Set("terrain_root");
this->pScene->mRootNode->mNumMeshes = 1;
this->pScene->mRootNode->mMeshes = new unsigned int[1];
this->pScene->mRootNode->mMeshes[0] = 0;
return;
}
// ------------------------------------------------------------------------------------------------
void HMPImporter::ReadFirstSkin(unsigned int iNumSkins, const unsigned char* szCursor,
@@ -433,15 +520,16 @@ void HMPImporter::GenerateTextureCoords(
aiVector3D* uv = this->pScene->mMeshes[0]->mTextureCoords[0];
const float fX = (1.0f / height) + (1.0f / height) / (height-1);
const float fY = (1.0f / width) + (1.0f / width) / (width-1);
const float fY = (1.0f / height) + (1.0f / height) / (height-1);
const float fX = (1.0f / width) + (1.0f / width) / (width-1);
for (unsigned int y = 0; y < height;++y)
{
for (unsigned int x = 0; x < width;++x)
{
uv->x = fX*x;
uv->y = 1.0f-fY*y;
uv->x = fX*x;
uv->z = 0.0f;
++uv;
}
}