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closes https://github.com/assimp/assimp/issues/2199: introduce first version for exporter.

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This commit is contained in:
Kim Kulling
2018-11-12 22:26:10 +01:00
parent 3fbe9095d1
commit b6af80f2fd
8 changed files with 194 additions and 65 deletions
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122
code/Exporter.cpp
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@@ -56,22 +56,22 @@ Here we implement only the C++ interface (Assimp::Exporter).
#include <assimp/BlobIOSystem.h>
#include <assimp/SceneCombiner.h>
#include "BaseProcess.h"
#include "Importer.h" // need this for GetPostProcessingStepInstanceList()
#include <assimp/DefaultIOSystem.h>
#include <assimp/Exporter.hpp>
#include <assimp/mesh.h>
#include <assimp/postprocess.h>
#include <assimp/scene.h>
#include "DefaultProgressHandler.h"
#include "BaseProcess.h"
#include "JoinVerticesProcess.h"
#include "MakeVerboseFormat.h"
#include "ConvertToLHProcess.h"
#include "PretransformVertices.h"
#include <assimp/Exceptional.h>
#include "ScenePrivate.h"
#include <memory>
#include <assimp/DefaultIOSystem.h>
#include <assimp/Exporter.hpp>
#include <assimp/mesh.h>
#include <assimp/postprocess.h>
#include <assimp/scene.h>
#include <memory>
namespace Assimp {
@@ -188,10 +188,14 @@ Exporter::ExportFormatEntry gExporters[] =
class ExporterPimpl {
public:
ExporterPimpl()
: blob()
, mIOSystem(new Assimp::DefaultIOSystem())
, mIsDefaultIOHandler(true)
{
: blob()
, mIOSystem(new Assimp::DefaultIOSystem())
, mIsDefaultIOHandler(true)
, mProgressHandler( nullptr )
, mIsDefaultProgressHandler( true )
, mPostProcessingSteps()
, mError()
, mExporters() {
GetPostProcessingStepInstanceList(mPostProcessingSteps);
// grab all built-in exporters
@@ -201,8 +205,7 @@ public:
}
}
~ExporterPimpl()
{
~ExporterPimpl() {
delete blob;
// Delete all post-processing plug-ins
@@ -216,6 +219,10 @@ public:
std::shared_ptr< Assimp::IOSystem > mIOSystem;
bool mIsDefaultIOHandler;
/** The progress handler */
ProgressHandler *mProgressHandler;
bool mIsDefaultProgressHandler;
/** Post processing steps we can apply at the imported data. */
std::vector< BaseProcess* > mPostProcessingSteps;
@@ -233,13 +240,16 @@ using namespace Assimp;
// ------------------------------------------------------------------------------------------------
Exporter :: Exporter()
: pimpl(new ExporterPimpl()) {
// empty
pimpl->mProgressHandler = new DefaultProgressHandler();
}
// ------------------------------------------------------------------------------------------------
Exporter::~Exporter() {
FreeBlob();
if (pimpl->mIsDefaultProgressHandler) {
delete pimpl->mProgressHandler;
pimpl->mProgressHandler = nullptr;
}
delete pimpl;
}
@@ -259,12 +269,32 @@ bool Exporter::IsDefaultIOHandler() const {
return pimpl->mIsDefaultIOHandler;
}
// ------------------------------------------------------------------------------------------------
void Exporter::SetProgressHandler(ProgressHandler* pHandler) {
ai_assert(nullptr != pimpl);
if ( nullptr == pHandler) {
// Release pointer in the possession of the caller
pimpl->mProgressHandler = new DefaultProgressHandler();
pimpl->mIsDefaultProgressHandler = true;
return;
}
if (pimpl->mProgressHandler == pHandler) {
return;
}
delete pimpl->mProgressHandler;
pimpl->mProgressHandler = pHandler;
pimpl->mIsDefaultProgressHandler = false;
}
// ------------------------------------------------------------------------------------------------
const aiExportDataBlob* Exporter::ExportToBlob( const aiScene* pScene, const char* pFormatId,
unsigned int, const ExportProperties* /*pProperties*/ ) {
if (pimpl->blob) {
delete pimpl->blob;
pimpl->blob = NULL;
pimpl->blob = nullptr;
}
std::shared_ptr<IOSystem> old = pimpl->mIOSystem;
@@ -273,7 +303,7 @@ const aiExportDataBlob* Exporter::ExportToBlob( const aiScene* pScene, const cha
if (AI_SUCCESS != Export(pScene,pFormatId,blobio->GetMagicFileName())) {
pimpl->mIOSystem = old;
return NULL;
return nullptr;
}
pimpl->blob = blobio->GetBlobChain();
@@ -295,6 +325,7 @@ bool IsVerboseFormat(const aiMesh* mesh) {
}
}
}
return true;
}
@@ -305,6 +336,7 @@ bool IsVerboseFormat(const aiScene* pScene) {
return false;
}
}
return true;
}
@@ -319,6 +351,8 @@ aiReturn Exporter::Export( const aiScene* pScene, const char* pFormatId, const c
// meshes upfront.
const bool is_verbose_format = !(pScene->mFlags & AI_SCENE_FLAGS_NON_VERBOSE_FORMAT) || IsVerboseFormat(pScene);
pimpl->mProgressHandler->UpdateFileWrite(0, 4);
pimpl->mError = "";
for (size_t i = 0; i < pimpl->mExporters.size(); ++i) {
const Exporter::ExportFormatEntry& exp = pimpl->mExporters[i];
@@ -326,9 +360,11 @@ aiReturn Exporter::Export( const aiScene* pScene, const char* pFormatId, const c
try {
// Always create a full copy of the scene. We might optimize this one day,
// but for now it is the most pragmatic way.
aiScene* scenecopy_tmp = NULL;
aiScene* scenecopy_tmp = nullptr;
SceneCombiner::CopyScene(&scenecopy_tmp,pScene);
pimpl->mProgressHandler->UpdateFileWrite(1, 4);
std::unique_ptr<aiScene> scenecopy(scenecopy_tmp);
const ScenePrivateData* const priv = ScenePriv(pScene);
@@ -375,6 +411,8 @@ aiReturn Exporter::Export( const aiScene* pScene, const char* pFormatId, const c
}
}
pimpl->mProgressHandler->UpdateFileWrite(2, 4);
if (pp) {
// the three 'conversion' steps need to be executed first because all other steps rely on the standard data layout
{
@@ -418,11 +456,13 @@ aiReturn Exporter::Export( const aiScene* pScene, const char* pFormatId, const c
}
}
ScenePrivateData* const privOut = ScenePriv(scenecopy.get());
ai_assert(privOut);
ai_assert(nullptr != privOut);
privOut->mPPStepsApplied |= pp;
}
pimpl->mProgressHandler->UpdateFileWrite(3, 4);
if(must_join_again) {
JoinVerticesProcess proc;
proc.Execute(scenecopy.get());
@@ -430,6 +470,8 @@ aiReturn Exporter::Export( const aiScene* pScene, const char* pFormatId, const c
ExportProperties emptyProperties; // Never pass NULL ExportProperties so Exporters don't have to worry.
exp.mExportFunction(pPath,pimpl->mIOSystem.get(),scenecopy.get(), pProperties ? pProperties : &emptyProperties);
pimpl->mProgressHandler->UpdateFileWrite(4, 4);
} catch (DeadlyExportError& err) {
pimpl->mError = err.what();
return AI_FAILURE;
@@ -452,7 +494,7 @@ const char* Exporter::GetErrorString() const {
// ------------------------------------------------------------------------------------------------
void Exporter::FreeBlob() {
delete pimpl->blob;
pimpl->blob = NULL;
pimpl->blob = nullptr;
pimpl->mError = "";
}
@@ -465,7 +507,7 @@ const aiExportDataBlob* Exporter::GetBlob() const {
// ------------------------------------------------------------------------------------------------
const aiExportDataBlob* Exporter::GetOrphanedBlob() const {
const aiExportDataBlob* tmp = pimpl->blob;
pimpl->blob = NULL;
pimpl->blob = nullptr;
return tmp;
}
@@ -545,75 +587,63 @@ bool ExportProperties::SetPropertyString(const char* szName, const std::string&
// ------------------------------------------------------------------------------------------------
// Set a configuration property
bool ExportProperties :: SetPropertyMatrix(const char* szName, const aiMatrix4x4& value)
{
bool ExportProperties::SetPropertyMatrix(const char* szName, const aiMatrix4x4& value) {
return SetGenericProperty<aiMatrix4x4>(mMatrixProperties, szName,value);
}
// ------------------------------------------------------------------------------------------------
// Get a configuration property
int ExportProperties :: GetPropertyInteger(const char* szName,
int iErrorReturn /*= 0xffffffff*/) const
{
int ExportProperties::GetPropertyInteger(const char* szName, int iErrorReturn /*= 0xffffffff*/) const {
return GetGenericProperty<int>(mIntProperties,szName,iErrorReturn);
}
// ------------------------------------------------------------------------------------------------
// Get a configuration property
ai_real ExportProperties :: GetPropertyFloat(const char* szName,
ai_real iErrorReturn /*= 10e10*/) const
{
ai_real ExportProperties::GetPropertyFloat(const char* szName, ai_real iErrorReturn /*= 10e10*/) const {
return GetGenericProperty<ai_real>(mFloatProperties,szName,iErrorReturn);
}
// ------------------------------------------------------------------------------------------------
// Get a configuration property
const std::string ExportProperties :: GetPropertyString(const char* szName,
const std::string& iErrorReturn /*= ""*/) const
{
const std::string ExportProperties::GetPropertyString(const char* szName,
const std::string& iErrorReturn /*= ""*/) const {
return GetGenericProperty<std::string>(mStringProperties,szName,iErrorReturn);
}
// ------------------------------------------------------------------------------------------------
// Has a configuration property
const aiMatrix4x4 ExportProperties :: GetPropertyMatrix(const char* szName,
const aiMatrix4x4& iErrorReturn /*= aiMatrix4x4()*/) const
{
const aiMatrix4x4 ExportProperties::GetPropertyMatrix(const char* szName,
const aiMatrix4x4& iErrorReturn /*= aiMatrix4x4()*/) const {
return GetGenericProperty<aiMatrix4x4>(mMatrixProperties,szName,iErrorReturn);
}
// ------------------------------------------------------------------------------------------------
// Has a configuration property
bool ExportProperties :: HasPropertyInteger(const char* szName) const
{
bool ExportProperties::HasPropertyInteger(const char* szName) const {
return HasGenericProperty<int>(mIntProperties, szName);
}
// ------------------------------------------------------------------------------------------------
// Has a configuration property
bool ExportProperties :: HasPropertyBool(const char* szName) const
{
bool ExportProperties::HasPropertyBool(const char* szName) const {
return HasGenericProperty<int>(mIntProperties, szName);
}
// ------------------------------------------------------------------------------------------------
// Has a configuration property
bool ExportProperties :: HasPropertyFloat(const char* szName) const
{
bool ExportProperties::HasPropertyFloat(const char* szName) const {
return HasGenericProperty<ai_real>(mFloatProperties, szName);
}
// ------------------------------------------------------------------------------------------------
// Has a configuration property
bool ExportProperties :: HasPropertyString(const char* szName) const
{
bool ExportProperties::HasPropertyString(const char* szName) const {
return HasGenericProperty<std::string>(mStringProperties, szName);
}
// ------------------------------------------------------------------------------------------------
// Has a configuration property
bool ExportProperties :: HasPropertyMatrix(const char* szName) const
{
bool ExportProperties::HasPropertyMatrix(const char* szName) const {
return HasGenericProperty<aiMatrix4x4>(mMatrixProperties, szName);
}