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Diffstat (limited to 'source/gameengine/VideoTexture/ImageMix.cpp')
| -rw-r--r-- | source/gameengine/VideoTexture/ImageMix.cpp | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/source/gameengine/VideoTexture/ImageMix.cpp b/source/gameengine/VideoTexture/ImageMix.cpp new file mode 100644 index 00000000000..b07b362818c --- /dev/null +++ b/source/gameengine/VideoTexture/ImageMix.cpp @@ -0,0 +1,205 @@ +/* $Id$ +----------------------------------------------------------------------------- +This source file is part of VideoTexture library + +Copyright (c) 2007 The Zdeno Ash Miklas + +This program is free software; you can redistribute it and/or modify it under +the terms of the GNU Lesser General Public License as published by the Free Software +Foundation; either version 2 of the License, or (at your option) any later +version. + +This program is distributed in the hope that it will be useful, but WITHOUT +ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License along with +this program; if not, write to the Free Software Foundation, Inc., 59 Temple +Place - Suite 330, Boston, MA 02111-1307, USA, or go to +http://www.gnu.org/copyleft/lesser.txt. +----------------------------------------------------------------------------- +*/ + +// implementation + +#include <PyObjectPlus.h> +#include <structmember.h> + +#include "ImageMix.h" + +#include "ImageBase.h" + +#include "Exception.h" + + +// cast ImageSource pointer to ImageSourceMix +inline ImageSourceMix * getImageSourceMix (ImageSource * src) +{ return static_cast<ImageSourceMix*>(src); } + + +// get weight +short ImageMix::getWeight (const char * id) +{ + // find source + ImageSourceList::iterator src = findSource(id); + // if found, return its weight + return src != m_sources.end() ? getImageSourceMix(*src)->getWeight() : 0; +} + +// set weight +bool ImageMix::setWeight (const char * id, short weight) +{ + // find source + ImageSourceList::iterator src = findSource(id); + // if source isn't found, report it + if (src == m_sources.end()) return false; + // set its weight + getImageSourceMix(*src)->setWeight(weight); + return true; +} + +ExceptionID ImageSizesNotMatch; + +ExpDesc ImageSizesNotMatchDesc (ImageSizesNotMatch, "Image sizes of sources are different"); + +// calculate image from sources and set its availability +void ImageMix::calcImage (unsigned int texId) +{ + // check source sizes + if (!checkSourceSizes()) THRWEXCP(ImageSizesNotMatch, S_OK); + // set offsets to image buffers + for (ImageSourceList::iterator it = m_sources.begin(); it != m_sources.end(); ++it) + // if image buffer is available + if ((*it)->getImageBuf() != NULL) + // set its offset + getImageSourceMix(*it)->setOffset(m_sources[0]->getImageBuf()); + // otherwise don't calculate image + else + return; + // if there is only single source + if (m_sources.size() == 1) + { + // use single filter + FilterBase mixFilt; + // fiter and convert image + filterImage(mixFilt, m_sources[0]->getImageBuf(), m_sources[0]->getSize()); + } + // otherwise use mix filter to merge source images + else + { + FilterImageMix mixFilt (m_sources); + // fiter and convert image + filterImage(mixFilt, m_sources[0]->getImageBuf(), m_sources[0]->getSize()); + } +} + + + +// cast Image pointer to ImageMix +inline ImageMix * getImageMix (PyImage * self) +{ return static_cast<ImageMix*>(self->m_image); } + + +// python methods + +// get source weight +PyObject * getWeight (PyImage * self, PyObject * args) +{ + // weight + short weight = 0; + // get arguments + char * id; + if (self->m_image != NULL && PyArg_ParseTuple(args, "s", &id)) + // get weight + weight = getImageMix(self)->getWeight(id); + // return weight + return Py_BuildValue("h", weight); +} + + +// set source weight +PyObject * setWeight (PyImage * self, PyObject * args) +{ + // get arguments + char * id; + short weight = 0; + if (self->m_image != NULL && PyArg_ParseTuple(args, "sh", &id, &weight)) + // set weight + if (!getImageMix(self)->setWeight(id, weight)) + { + // if not set, report error + PyErr_SetString(PyExc_RuntimeError, "Invalid id of source");; + return NULL; + } + // return none + Py_RETURN_NONE; +} + + +// methods structure +static PyMethodDef imageMixMethods[] = +{ + {"getSource", (PyCFunction)Image_getSource, METH_VARARGS, "get image source"}, + {"setSource", (PyCFunction)Image_setSource, METH_VARARGS, "set image source"}, + {"getWeight", (PyCFunction)getWeight, METH_VARARGS, "get image source weight"}, + {"setWeight", (PyCFunction)setWeight, METH_VARARGS, "set image source weight"}, + // methods from ImageBase class + {"refresh", (PyCFunction)Image_refresh, METH_NOARGS, "Refresh image - invalidate its current content"}, + {NULL} +}; +// attributes structure +static PyGetSetDef imageMixGetSets[] = +{ // attributes from ImageBase class + {(char*)"image", (getter)Image_getImage, NULL, (char*)"image data", NULL}, + {(char*)"size", (getter)Image_getSize, NULL, (char*)"image size", NULL}, + {(char*)"scale", (getter)Image_getScale, (setter)Image_setScale, (char*)"fast scale of image (near neighbour)", NULL}, + {(char*)"flip", (getter)Image_getFlip, (setter)Image_setFlip, (char*)"flip image vertically", NULL}, + {(char*)"filter", (getter)Image_getFilter, (setter)Image_setFilter, (char*)"pixel filter", NULL}, + {NULL} +}; + + +// define python type +PyTypeObject ImageMixType = +{ + PyObject_HEAD_INIT(NULL) + 0, /*ob_size*/ + "VideoTexture.ImageMix", /*tp_name*/ + sizeof(PyImage), /*tp_basicsize*/ + 0, /*tp_itemsize*/ + (destructor)Image_dealloc, /*tp_dealloc*/ + 0, /*tp_print*/ + 0, /*tp_getattr*/ + 0, /*tp_setattr*/ + 0, /*tp_compare*/ + 0, /*tp_repr*/ + 0, /*tp_as_number*/ + 0, /*tp_as_sequence*/ + 0, /*tp_as_mapping*/ + 0, /*tp_hash */ + 0, /*tp_call*/ + 0, /*tp_str*/ + 0, /*tp_getattro*/ + 0, /*tp_setattro*/ + 0, /*tp_as_buffer*/ + Py_TPFLAGS_DEFAULT, /*tp_flags*/ + "Image mixer", /* tp_doc */ + 0, /* tp_traverse */ + 0, /* tp_clear */ + 0, /* tp_richcompare */ + 0, /* tp_weaklistoffset */ + 0, /* tp_iter */ + 0, /* tp_iternext */ + imageMixMethods, /* tp_methods */ + 0, /* tp_members */ + imageMixGetSets, /* tp_getset */ + 0, /* tp_base */ + 0, /* tp_dict */ + 0, /* tp_descr_get */ + 0, /* tp_descr_set */ + 0, /* tp_dictoffset */ + (initproc)Image_init<ImageMix>, /* tp_init */ + 0, /* tp_alloc */ + Image_allocNew, /* tp_new */ +}; 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