/* \brief allocate new camera */
GLHCKAPI glhckCamera* glhckCameraNew(void)
{
glhckCamera *object;
/* allocate camera */
if (!(object = _glhckCalloc(1, sizeof(glhckCamera))))
goto fail;
/* increase reference */
object->refCounter++;
/* initialize camera's object */
if (!(object->object = glhckObjectNew()))
goto fail;
/* defaults */
object->view.projectionType = GLHCK_PROJECTION_PERSPECTIVE;
object->view.near = 1.0f;
object->view.far = 100.0f;
object->view.fov = 35.0f;
/* reset */
glhckCameraReset(object);
/* insert to world */
_glhckWorldInsert(camera, object, glhckCamera*);
RET(0, "%p", object);
return object;
fail:
IFDO(_glhckFree, object);
RET(0, "%p", NULL);
return NULL;
}
/* \brief import Assimp file */
int _glhckImportAssimp(glhckObject *object, const char *file, const glhckImportModelParameters *params,
glhckGeometryIndexType itype, glhckGeometryVertexType vtype)
{
const struct aiScene *scene;
glhckObject *first = NULL;
unsigned int aflags;
CALL(0, "%p, %s, %p", object, file, params);
/* import the model using assimp
* TODO: make import hints tunable?
* Needs changes to import protocol! */
aflags = aiProcessPreset_TargetRealtime_Fast | aiProcess_OptimizeGraph;
if (!params->animated && params->flatten) aflags |= aiProcess_PreTransformVertices;
scene = aiImportFile(file, aflags);
if (!scene) goto assimp_fail;
/* mark ourself as special root object.
* this makes most functions called on root object echo to children */
object->flags |= GLHCK_OBJECT_ROOT;
/* this is going to be the first object in mesh,
* the object returned by this importer is just invisible root object. */
if (!(first = glhckObjectNew())) goto fail;
glhckObjectAddChild(object, first);
glhckObjectFree(first);
/* process the model */
if (processModel(file, object, first, scene, scene->mRootNode,
itype, vtype, params) != RETURN_OK)
goto fail;
/* process the animated model part */
if (params->animated && processBonesAndAnimations(object, scene) != RETURN_OK)
goto fail;
/* close file */
NULLDO(aiReleaseImport, scene);
RET(0, "%d", RETURN_OK);
return RETURN_OK;
assimp_fail:
DEBUG(GLHCK_DBG_ERROR, aiGetErrorString());
fail:
IFDO(aiReleaseImport, scene);
IFDO(glhckObjectFree, first);
RET(0, "%d", RETURN_FAIL);
return RETURN_FAIL;
}
static int processModel(const char *file, glhckObject *object,
glhckObject *current, const struct aiScene *sc, const struct aiNode *nd,
glhckGeometryIndexType itype, glhckGeometryVertexType vtype, const glhckImportModelParameters *params)
{
unsigned int m, f;
unsigned int numVertices = 0, numIndices = 0;
unsigned int ioffset, voffset;
glhckImportIndexData *indices = NULL;
glhckImportVertexData *vertexData = NULL;
glhckMaterial *material = NULL;
glhckTexture **textureList = NULL, *texture = NULL;
glhckAtlas *atlas = NULL;
const struct aiMesh *mesh;
const struct aiFace *face;
int canFreeCurrent = 0;
int hasTexture = 0;
assert(file);
assert(object && current);
assert(sc && nd);
/* combine && atlas loading path */
if (params->flatten) {
/* prepare atlas for texture combining */
if (!(atlas = glhckAtlasNew()))
goto assimp_no_memory;
/* texturelist for offseting coordinates */
if (!(textureList = _glhckCalloc(nd->mNumMeshes, sizeof(_glhckTexture*))))
goto assimp_no_memory;
/* gather statistics */
for (m = 0; m != nd->mNumMeshes; ++m) {
mesh = sc->mMeshes[nd->mMeshes[m]];
if (!mesh->mVertices) continue;
for (f = 0; f != mesh->mNumFaces; ++f) {
face = &mesh->mFaces[f];
if (!face) goto fail;
numIndices += face->mNumIndices;
}
numVertices += mesh->mNumVertices;
if ((texture = textureFromMaterial(file, sc->mMaterials[mesh->mMaterialIndex]))) {
glhckAtlasInsertTexture(atlas, texture);
glhckTextureFree(texture);
textureList[m] = texture;
hasTexture = 1;
}
}
/* allocate vertices */
if (!(vertexData = _glhckCalloc(numVertices, sizeof(glhckImportVertexData))))
goto assimp_no_memory;
/* allocate indices */
if (!(indices = _glhckMalloc(numIndices * sizeof(glhckImportIndexData))))
goto assimp_no_memory;
/* pack combined textures */
if (hasTexture) {
if (glhckAtlasPack(atlas, GLHCK_RGBA, 1, 0, glhckTextureDefaultParameters()) != RETURN_OK)
goto fail;
} else {
NULLDO(glhckAtlasFree, atlas);
NULLDO(_glhckFree, textureList);
}
/* join vertex data */
for (m = 0, ioffset = 0, voffset = 0; m != nd->mNumMeshes; ++m) {
mesh = sc->mMeshes[nd->mMeshes[m]];
if (!mesh->mVertices) continue;
if (textureList) texture = textureList[m];
else texture = NULL;
joinMesh(mesh, voffset, indices+ioffset, vertexData+voffset, atlas, texture);
for (f = 0; f != mesh->mNumFaces; ++f) {
face = &mesh->mFaces[f];
if (!face) goto fail;
ioffset += face->mNumIndices;
}
voffset += mesh->mNumVertices;
}
/* create material */
if (hasTexture && !(material = glhckMaterialNew(texture)))
goto assimp_no_memory;
/* finally build the model */
if (buildModel(current, numIndices, numVertices,
indices, vertexData, itype, vtype) == RETURN_OK) {
_glhckObjectFile(current, nd->mName.data);
if (material) glhckObjectMaterial(current, material);
if (!(current = glhckObjectNew())) goto fail;
glhckObjectAddChild(object, current);
glhckObjectFree(current);
canFreeCurrent = 1;
}
/* free stuff */
IFDO(glhckAtlasFree, atlas);
IFDO(glhckMaterialFree, material);
IFDO(_glhckFree, textureList);
NULLDO(_glhckFree, vertexData);
NULLDO(_glhckFree, indices);
} else {
/* default loading path */
for (m = 0, ioffset = 0, voffset = 0; m != nd->mNumMeshes; ++m) {
mesh = sc->mMeshes[nd->mMeshes[m]];
if (!mesh->mVertices) continue;
/* gather statistics */
numIndices = 0;
for (f = 0; f != mesh->mNumFaces; ++f) {
face = &mesh->mFaces[f];
if (!face) goto fail;
numIndices += face->mNumIndices;
}
numVertices = mesh->mNumVertices;
// FIXME: create materialFromAssimpMaterial
// that returns glhckMaterial with correct stuff
/* get texture */
hasTexture = 0;
if ((texture = textureFromMaterial(file, sc->mMaterials[mesh->mMaterialIndex])))
hasTexture = 1;
/* create material */
if (hasTexture && !(material = glhckMaterialNew(texture)))
goto assimp_no_memory;
/* allocate vertices */
if (!(vertexData = _glhckCalloc(numVertices, sizeof(glhckImportVertexData))))
goto assimp_no_memory;
/* allocate indices */
if (!(indices = _glhckMalloc(numIndices * sizeof(glhckImportIndexData))))
goto assimp_no_memory;
/* fill arrays */
joinMesh(mesh, 0, indices, vertexData, NULL, NULL);
/* build model */
if (buildModel(current, numIndices, numVertices,
indices, vertexData, itype, vtype) == RETURN_OK) {
/* FIXME: UGLY */
char pointer[16];
snprintf(pointer, sizeof(pointer), "%p", mesh);
_glhckObjectFile(current, pointer);
if (material) glhckObjectMaterial(current, material);
if (!(current = glhckObjectNew())) goto fail;
glhckObjectAddChild(object, current);
glhckObjectFree(current);
canFreeCurrent = 1;
}
/* free stuff */
NULLDO(_glhckFree, vertexData);
NULLDO(_glhckFree, indices);
IFDO(glhckTextureFree, texture);
IFDO(glhckMaterialFree, material);
}
}
/* process childrens */
for (m = 0; m != nd->mNumChildren; ++m) {
if (processModel(file, object, current, sc, nd->mChildren[m],
itype, vtype, params) == RETURN_OK) {
if (!(current = glhckObjectNew())) goto fail;
glhckObjectAddChild(object, current);
glhckObjectFree(current);
canFreeCurrent = 1;
}
}
/* we din't do anything to the next
* allocated object, so free it */
if (canFreeCurrent) glhckObjectRemoveFromParent(current);
return RETURN_OK;
assimp_no_memory:
DEBUG(GLHCK_DBG_ERROR, "Assimp not enough memory.");
fail:
IFDO(_glhckFree, vertexData);
IFDO(_glhckFree, indices);
IFDO(_glhckFree, textureList);
IFDO(glhckTextureFree, texture);
IFDO(glhckMaterialFree, material);
IFDO(glhckAtlasFree, atlas);
if (canFreeCurrent) glhckObjectRemoveFromParent(current);
return RETURN_FAIL;
}
Mesh::Mesh(GameWorld* world) :
Object(world, glhckObjectNew()),
Entity(world), Renderable(world)
{
glhckObjectNewGeometry(o)->type = GLHCK_TRIANGLES;
}
