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Diffstat (limited to 'source/blender/python/intern/gpu.c')
| -rw-r--r-- | source/blender/python/intern/gpu.c | 289 |
1 files changed, 289 insertions, 0 deletions
diff --git a/source/blender/python/intern/gpu.c b/source/blender/python/intern/gpu.c new file mode 100644 index 00000000000..334bb1f725a --- /dev/null +++ b/source/blender/python/intern/gpu.c @@ -0,0 +1,289 @@ +/* + * $Id$ + * + * ***** BEGIN GPL LICENSE BLOCK ***** + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2006 Blender Foundation. + * All rights reserved. + * + * The Original Code is: all of this file. + * + * Contributor(s): Benoit Bolsee. + * + * ***** END GPL LICENSE BLOCK ***** + */ + +/** \file blender/python/intern/gpu.c + * \ingroup pythonintern + */ + +/* python redefines */ +#ifdef _POSIX_C_SOURCE +#undef _POSIX_C_SOURCE +#endif + +#include <Python.h> + +#include "GPU_material.h" + +#include "DNA_scene_types.h" +#include "DNA_image_types.h" +#include "DNA_material_types.h" +#include "DNA_lamp_types.h" +#include "DNA_object_types.h" +#include "DNA_ID.h" +#include "DNA_customdata_types.h" + +#include "BLI_listbase.h" +#include "BLI_utildefines.h" + +#include "RNA_access.h" + +#include "bpy_rna.h" + +#define PY_MODULE_ADD_CONSTANT(module, name) PyModule_AddIntConstant(module, #name, name) + +PyDoc_STRVAR(M_gpu_doc, + "This module provides access to the GLSL shader."); + +static struct PyModuleDef gpumodule = { + PyModuleDef_HEAD_INIT, + "gpu", /* name of module */ + M_gpu_doc, /* module documentation */ + -1, /* size of per-interpreter state of the module, + or -1 if the module keeps state in global variables. */ + NULL, NULL, NULL, NULL, NULL +}; + +PyMODINIT_FUNC +PyInit_gpu(void) +{ + PyObject* m; + + m = PyModule_Create(&gpumodule); + if(m == NULL) + return NULL; + + // device constants + PY_MODULE_ADD_CONSTANT(m, GPU_DYNAMIC_OBJECT_VIEWMAT); + PY_MODULE_ADD_CONSTANT(m, GPU_DYNAMIC_OBJECT_MAT); + PY_MODULE_ADD_CONSTANT(m, GPU_DYNAMIC_OBJECT_VIEWIMAT); + PY_MODULE_ADD_CONSTANT(m, GPU_DYNAMIC_OBJECT_IMAT); + PY_MODULE_ADD_CONSTANT(m, GPU_DYNAMIC_OBJECT_COLOR); + PY_MODULE_ADD_CONSTANT(m, GPU_DYNAMIC_LAMP_DYNVEC); + PY_MODULE_ADD_CONSTANT(m, GPU_DYNAMIC_LAMP_DYNCO); + PY_MODULE_ADD_CONSTANT(m, GPU_DYNAMIC_LAMP_DYNIMAT); + PY_MODULE_ADD_CONSTANT(m, GPU_DYNAMIC_LAMP_DYNPERSMAT); + PY_MODULE_ADD_CONSTANT(m, GPU_DYNAMIC_LAMP_DYNENERGY); + PY_MODULE_ADD_CONSTANT(m, GPU_DYNAMIC_LAMP_DYNCOL); + PY_MODULE_ADD_CONSTANT(m, GPU_DYNAMIC_SAMPLER_2DBUFFER); + PY_MODULE_ADD_CONSTANT(m, GPU_DYNAMIC_SAMPLER_2DIMAGE); + PY_MODULE_ADD_CONSTANT(m, GPU_DYNAMIC_SAMPLER_2DSHADOW); + + PY_MODULE_ADD_CONSTANT(m, GPU_DATA_1I); + PY_MODULE_ADD_CONSTANT(m, GPU_DATA_1F); + PY_MODULE_ADD_CONSTANT(m, GPU_DATA_2F); + PY_MODULE_ADD_CONSTANT(m, GPU_DATA_3F); + PY_MODULE_ADD_CONSTANT(m, GPU_DATA_4F); + PY_MODULE_ADD_CONSTANT(m, GPU_DATA_9F); + PY_MODULE_ADD_CONSTANT(m, GPU_DATA_16F); + PY_MODULE_ADD_CONSTANT(m, GPU_DATA_4UB); + + PY_MODULE_ADD_CONSTANT(m, CD_MTFACE); + PY_MODULE_ADD_CONSTANT(m, CD_ORCO); + PY_MODULE_ADD_CONSTANT(m, CD_TANGENT); + PY_MODULE_ADD_CONSTANT(m, CD_MCOL); + return m; +} + +#define PY_DICT_ADD_STRING(d,s,f) \ + val = PyUnicode_FromString(s->f); \ + PyDict_SetItemString(d, #f, val); \ + Py_DECREF(val) + +#define PY_DICT_ADD_LONG(d,s,f) \ + val = PyLong_FromLong(s->f); \ + PyDict_SetItemString(d, #f, val); \ + Py_DECREF(val) + +#define PY_DICT_ADD_ID(d,s,f) \ + RNA_id_pointer_create((struct ID*)s->f, &tptr); \ + val = pyrna_struct_CreatePyObject(&tptr); \ + PyDict_SetItemString(d, #f, val); \ + Py_DECREF(val) + +#define PY_OBJ_ADD_ID(d,s,f) \ + val = PyUnicode_FromString(&s->f->id.name[2]); \ + PyObject_SetAttrString(d, #f, val); \ + Py_DECREF(val) + +#define PY_OBJ_ADD_LONG(d,s,f) \ + val = PyLong_FromLong(s->f); \ + PyObject_SetAttrString(d, #f, val); \ + Py_DECREF(val) + +#define PY_OBJ_ADD_STRING(d,s,f) \ + val = PyUnicode_FromString(s->f); \ + PyObject_SetAttrString(d, #f, val); \ + Py_DECREF(val) + +static PyObject* GPU_export_shader(PyObject* UNUSED(self), PyObject *args, PyObject *kwds) +{ + PyObject* pyscene; + PyObject* pymat; + PyObject* as_pointer; + PyObject* pointer; + PyObject* result; + PyObject* dict; + PyObject* val; + PyObject* seq; + + int i; + Scene *scene; + PointerRNA tptr; + Material *material; + GPUShaderExport *shader; + GPUInputUniform *uniform; + GPUInputAttribute *attribute; + + static const char *kwlist[] = {"scene", "material", NULL}; + + if(!PyArg_ParseTupleAndKeywords(args, kwds, "OO:export_shader", (char**)(kwlist), &pyscene, &pymat)) + return NULL; + + if (!strcmp(Py_TYPE(pyscene)->tp_name, "Scene") && + (as_pointer = PyObject_GetAttrString(pyscene, "as_pointer")) != NULL && + PyCallable_Check(as_pointer)) { + // must be a scene object + pointer = PyObject_CallObject(as_pointer, NULL); + if (!pointer) { + PyErr_SetString(PyExc_SystemError, "scene.as_pointer() failed"); + return NULL; + } + scene = (Scene*)PyLong_AsVoidPtr(pointer); + Py_DECREF(pointer); + if (!scene) { + PyErr_SetString(PyExc_SystemError, "scene.as_pointer() failed"); + return NULL; + } + } else { + PyErr_SetString(PyExc_TypeError, "gpu.export_shader() first argument should be of Scene type"); + return NULL; + } + + if (!strcmp(Py_TYPE(pymat)->tp_name, "Material") && + (as_pointer = PyObject_GetAttrString(pymat, "as_pointer")) != NULL && + PyCallable_Check(as_pointer)) { + // must be a material object + pointer = PyObject_CallObject(as_pointer, NULL); + if (!pointer) { + PyErr_SetString(PyExc_SystemError, "scene.as_pointer() failed"); + return NULL; + } + material = (Material*)PyLong_AsVoidPtr(pointer); + Py_DECREF(pointer); + if (!material) { + PyErr_SetString(PyExc_SystemError, "scene.as_pointer() failed"); + return NULL; + } + } else { + PyErr_SetString(PyExc_TypeError, "gpu.export_shader() second argument should be of Material type"); + return NULL; + } + // we can call our internal function at last: + shader = GPU_shader_export(scene, material); + if (!shader) { + PyErr_SetString(PyExc_RuntimeError, "cannot export shader"); + return NULL; + } + // build a dictionary + result = PyDict_New(); + if (shader->fragment) { + PY_DICT_ADD_STRING(result,shader,fragment); + } + if (shader->vertex) { + PY_DICT_ADD_STRING(result,shader,vertex); + } + seq = PyList_New(BLI_countlist(&shader->uniforms)); + for (i=0, uniform=shader->uniforms.first; uniform; uniform=uniform->next, i++) { + dict = PyDict_New(); + PY_DICT_ADD_STRING(dict,uniform,varname); + PY_DICT_ADD_LONG(dict,uniform,datatype); + PY_DICT_ADD_LONG(dict,uniform,type); + if (uniform->lamp) { + PY_DICT_ADD_ID(dict,uniform,lamp); + } + if (uniform->image) { + PY_DICT_ADD_ID(dict,uniform,image); + } + if (uniform->type == GPU_DYNAMIC_SAMPLER_2DBUFFER || + uniform->type == GPU_DYNAMIC_SAMPLER_2DIMAGE || + uniform->type == GPU_DYNAMIC_SAMPLER_2DSHADOW) { + PY_DICT_ADD_LONG(dict,uniform,texnumber); + } + if (uniform->texpixels) { + val = PyByteArray_FromStringAndSize((const char *)uniform->texpixels, uniform->texsize); + PyDict_SetItemString(dict, "texpixels", val); + Py_DECREF(val); + PY_DICT_ADD_LONG(dict,uniform,texsize); + } + PyList_SET_ITEM(seq, i, dict); + } + PyDict_SetItemString(result, "uniforms", seq); + Py_DECREF(seq); + + seq = PyList_New(BLI_countlist(&shader->attributes)); + for (i=0, attribute=shader->attributes.first; attribute; attribute=attribute->next, i++) { + dict = PyDict_New(); + PY_DICT_ADD_STRING(dict,attribute,varname); + PY_DICT_ADD_LONG(dict,attribute,datatype); + PY_DICT_ADD_LONG(dict,attribute,type); + PY_DICT_ADD_LONG(dict,attribute,number); + if (attribute->name) { + if (attribute->name[0] != 0) { + PY_DICT_ADD_STRING(dict,attribute,name); + } else { + val = PyLong_FromLong(0); + PyDict_SetItemString(dict, "name", val); + Py_DECREF(val); + } + } + PyList_SET_ITEM(seq, i, dict); + } + PyDict_SetItemString(result, "attributes", seq); + Py_DECREF(seq); + + GPU_free_shader_export(shader); + + return result; +} + +static PyMethodDef meth_export_shader[] = {{ "export_shader", (PyCFunction)GPU_export_shader, METH_VARARGS | METH_KEYWORDS, + "export_shader(scene,material)\n\n" + "Returns the GLSL shader that produces the visual effect of material in scene.\n\n" + ":return: Dictionary defining the shader, uniforms and attributes.\n" + ":rtype: Dict"}}; + +PyObject* GPU_initPython(void) +{ + PyObject* module = PyInit_gpu(); + PyModule_AddObject(module, "export_shader", (PyObject *)PyCFunction_New(meth_export_shader, NULL)); + PyDict_SetItemString(PyImport_GetModuleDict(), "gpu", module); + + return module; +} + |