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Committing patch [#23278] (by me)

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This patch allows a user to pass binary data to LibLoad() to load a blend file from memory instead of a file path. I don't know how useful this will be for others, but I've used it so far for:
  * Decrypting .blend files and loading them without having to store the .blend on the hard drive
  * Pulling .blend data out of an archive and loading it (again skipping the hard drive)

So, it seems the biggest use for this is skipping a bit of file IO (and possibly some security problems).

Example usage:
import bge

with f as open('myfile.blend', 'rb'):
    data = f.read()

bge.logic.LibLoad('Name', 'Scene', data)
This commit is contained in:
Mitchell Stokes
2010-08-28 02:07:55 +00:00
parent 5729b991fa
commit 5c23537daa
6 changed files with 64 additions and 9 deletions
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21
source/gameengine/Ketsji/KX_PythonInit.cpp
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@@ -626,13 +626,28 @@ static PyObject *gLibLoad(PyObject*, PyObject* args)
KX_Scene *kx_scene= gp_KetsjiScene;
char *path;
char *group;
Py_buffer py_buffer;
py_buffer.buf = NULL;
char *err_str= NULL;
if (!PyArg_ParseTuple(args,"ss:LibLoad",&path, &group))
if (!PyArg_ParseTuple(args,"ss|y*:LibLoad",&path, &group, &py_buffer))
return NULL;
if(kx_scene->GetSceneConverter()->LinkBlendFile(path, group, kx_scene, &err_str)) {
Py_RETURN_TRUE;
if (!py_buffer.buf)
{
if(kx_scene->GetSceneConverter()->LinkBlendFilePath(path, group, kx_scene, &err_str)) {
Py_RETURN_TRUE;
}
}
else
{
if(kx_scene->GetSceneConverter()->LinkBlendFileMemory(py_buffer.buf, py_buffer.len, path, group, kx_scene, &err_str)) {
PyBuffer_Release(&py_buffer);
Py_RETURN_TRUE;
}
PyBuffer_Release(&py_buffer);
}
if(err_str) {