354 lines
14 KiB
C++
354 lines
14 KiB
C++
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Contributor(s): Willian P. Germano
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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/** \file blender/python/generic/bgl.h
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* \ingroup pygen
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*/
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/* This is the Blender.BGL part of opy_draw.c, from the old bpython/intern
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* dir, with minor changes to adapt it to the new Python implementation.
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* The BGL submodule "wraps" OpenGL functions and constants, allowing script
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* writers to make OpenGL calls in their Python scripts for Blender. The
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* more important original comments are marked with an @ symbol. */
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#ifndef __BGL_H__
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#define __BGL_H__
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PyObject *BPyInit_bgl(void);
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/*@ Create a buffer object */
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/*@ dimensions is an array of ndimensions integers representing the size of each dimension */
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/*@ initbuffer if not NULL holds a contiguous buffer with the correct format from which the buffer will be initialized */
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struct _Buffer *BGL_MakeBuffer(int type, int ndimensions, int *dimensions, void *initbuffer);
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/*@ Return the size of buffer element, type must be one of GL_BYTE, GL_SHORT, GL_INT, GL_FLOAT or GL_DOUBLE */
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/*@ returns -1 otherwise */
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int BGL_typeSize(int type);
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/*@ Buffer Object */
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/*@ For Python access to OpenGL functions requiring a pointer. */
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typedef struct _Buffer {
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PyObject_VAR_HEAD
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PyObject *parent;
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int type; /* GL_BYTE, GL_SHORT, GL_INT, GL_FLOAT */
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int ndimensions;
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int *dimensions;
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union {
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char *asbyte;
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short *asshort;
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int *asint;
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float *asfloat;
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double *asdouble;
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void *asvoid;
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} buf;
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} Buffer;
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/*@ The type object */
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extern PyTypeObject BGL_bufferType;
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/*@ By golly George! It looks like fancy pants macro time!!! */
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#if 0 /* unused so far */
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#define int_str "i"
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#define int_var(number) bgl_int##number
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#define int_ref(number) &bgl_int##number
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#define int_def(number) int int_var(number)
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#define float_str "f"
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#define float_var(number) bgl_float##number
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#define float_ref(number) &bgl_float##number
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#define float_def(number) float float_var(number)
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#endif
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/* TYPE_str is the string to pass to Py_ArgParse (for the format) */
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/* TYPE_var is the name to pass to the GL function */
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/* TYPE_ref is the pointer to pass to Py_ArgParse (to store in) */
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/* TYPE_def is the C initialization of the variable */
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#define void_str ""
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#define void_var(num)
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#define void_ref(num) &bgl_var##num
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#define void_def(num) char bgl_var##num
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#define buffer_str "O!"
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#define buffer_var(number) (bgl_buffer##number)->buf.asvoid
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#define buffer_ref(number) &BGL_bufferType, &bgl_buffer##number
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#define buffer_def(number) Buffer *bgl_buffer##number
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/* GL Pointer fields, handled by buffer type */
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/* GLdoubleP, GLfloatP, GLintP, GLuintP, GLshortP, GLsizeiP, GLcharP */
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#define GLbooleanP_str "O!"
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#define GLbooleanP_var(number) (bgl_buffer##number)->buf.asvoid
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#define GLbooleanP_ref(number) &BGL_bufferType, &bgl_buffer##number
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#define GLbooleanP_def(number) Buffer *bgl_buffer##number
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#define GLbyteP_str "O!"
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#define GLbyteP_var(number) (bgl_buffer##number)->buf.asvoid
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#define GLbyteP_ref(number) &BGL_bufferType, &bgl_buffer##number
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#define GLbyteP_def(number) Buffer *bgl_buffer##number
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#define GLubyteP_str "O!"
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#define GLubyteP_var(number) (bgl_buffer##number)->buf.asvoid
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#define GLubyteP_ref(number) &BGL_bufferType, &bgl_buffer##number
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#define GLubyteP_def(number) Buffer *bgl_buffer##number
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#define GLintP_str "O!"
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#define GLintP_var(number) (bgl_buffer##number)->buf.asvoid
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#define GLintP_ref(number) &BGL_bufferType, &bgl_buffer##number
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#define GLintP_def(number) Buffer *bgl_buffer##number
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#define GLuintP_str "O!"
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#define GLuintP_var(number) (bgl_buffer##number)->buf.asvoid
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#define GLuintP_ref(number) &BGL_bufferType, &bgl_buffer##number
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#define GLuintP_def(number) Buffer *bgl_buffer##number
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#define GLshortP_str "O!"
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#define GLshortP_var(number) (bgl_buffer##number)->buf.asvoid
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#define GLshortP_ref(number) &BGL_bufferType, &bgl_buffer##number
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#define GLshortP_def(number) Buffer *bgl_buffer##number
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#define GLushortP_str "O!"
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#define GLushortP_var(number) (bgl_buffer##number)->buf.asvoid
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#define GLushortP_ref(number) &BGL_bufferType, &bgl_buffer##number
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#define GLushortP_def(number) Buffer *bgl_buffer##number
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#define GLfloatP_str "O!"
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#define GLfloatP_var(number) (bgl_buffer##number)->buf.asvoid
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#define GLfloatP_ref(number) &BGL_bufferType, &bgl_buffer##number
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#define GLfloatP_def(number) Buffer *bgl_buffer##number
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#define GLdoubleP_str "O!"
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#define GLdoubleP_var(number) (bgl_buffer##number)->buf.asvoid
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#define GLdoubleP_ref(number) &BGL_bufferType, &bgl_buffer##number
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#define GLdoubleP_def(number) Buffer *bgl_buffer##number
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#define GLclampfP_str "O!"
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#define GLclampfP_var(number) (bgl_buffer##number)->buf.asvoid
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#define GLclampfP_ref(number) &BGL_bufferType, &bgl_buffer##number
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#define GLclampfP_def(number) Buffer *bgl_buffer##number
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#define GLvoidP_str "O!"
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#define GLvoidP_var(number) (bgl_buffer##number)->buf.asvoid
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#define GLvoidP_ref(number) &BGL_bufferType, &bgl_buffer##number
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#define GLvoidP_def(number) Buffer *bgl_buffer##number
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#define GLsizeiP_str "O!"
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#define GLsizeiP_var(number) (bgl_buffer##number)->buf.asvoid
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#define GLsizeiP_ref(number) &BGL_bufferType, &bgl_buffer##number
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#define GLsizeiP_def(number) Buffer *bgl_buffer##number
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#define GLcharP_str "O!"
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#define GLcharP_var(number) (bgl_buffer##number)->buf.asvoid
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#define GLcharP_ref(number) &BGL_bufferType, &bgl_buffer##number
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#define GLcharP_def(number) Buffer *bgl_buffer##number
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#define buffer_str "O!"
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#define buffer_var(number) (bgl_buffer##number)->buf.asvoid
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#define buffer_ref(number) &BGL_bufferType, &bgl_buffer##number
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#define buffer_def(number) Buffer *bgl_buffer##number
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/*@The standard GL typedefs are used as prototypes, we can't
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* use the GL type directly because Py_ArgParse expects normal
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* C types.
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*
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* Py_ArgParse doesn't grok writing into unsigned variables,
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* so we use signed everything (even stuff that should be unsigned.
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*/
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/* typedef unsigned int GLenum; */
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#define GLenum_str "i"
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#define GLenum_var(num) bgl_var##num
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#define GLenum_ref(num) &bgl_var##num
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#define GLenum_def(num) /* unsigned */ int GLenum_var(num)
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/* typedef unsigned int GLboolean; */
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#define GLboolean_str "b"
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#define GLboolean_var(num) bgl_var##num
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#define GLboolean_ref(num) &bgl_var##num
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#define GLboolean_def(num) /* unsigned */ char GLboolean_var(num)
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/* typedef unsigned int GLbitfield; */
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#define GLbitfield_str "i"
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#define GLbitfield_var(num) bgl_var##num
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#define GLbitfield_ref(num) &bgl_var##num
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#define GLbitfield_def(num) /* unsigned */ int GLbitfield_var(num)
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/* typedef signed char GLbyte; */
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#define GLbyte_str "b"
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#define GLbyte_var(num) bgl_var##num
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#define GLbyte_ref(num) &bgl_var##num
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#define GLbyte_def(num) signed char GLbyte_var(num)
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/* typedef short GLshort; */
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#define GLshort_str "h"
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#define GLshort_var(num) bgl_var##num
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#define GLshort_ref(num) &bgl_var##num
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#define GLshort_def(num) short GLshort_var(num)
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/* typedef int GLint; */
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#define GLint_str "i"
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#define GLint_var(num) bgl_var##num
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#define GLint_ref(num) &bgl_var##num
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#define GLint_def(num) int GLint_var(num)
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/* typedef int GLsizei; */
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#define GLsizei_str "i"
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#define GLsizei_var(num) bgl_var##num
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#define GLsizei_ref(num) &bgl_var##num
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#define GLsizei_def(num) int GLsizei_var(num)
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/* typedef unsigned char GLubyte; */
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#define GLubyte_str "B"
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#define GLubyte_var(num) bgl_var##num
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#define GLubyte_ref(num) &bgl_var##num
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#define GLubyte_def(num) /* unsigned */ char GLubyte_var(num)
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/* typedef unsigned short GLushort; */
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#define GLushort_str "H"
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#define GLushort_var(num) bgl_var##num
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#define GLushort_ref(num) &bgl_var##num
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#define GLushort_def(num) /* unsigned */ short GLushort_var(num)
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/* typedef unsigned int GLuint; */
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#define GLuint_str "I"
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#define GLuint_var(num) bgl_var##num
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#define GLuint_ref(num) &bgl_var##num
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#define GLuint_def(num) /* unsigned */ int GLuint_var(num)
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/* typedef float GLfloat; */
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#define GLfloat_str "f"
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#define GLfloat_var(num) bgl_var##num
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#define GLfloat_ref(num) &bgl_var##num
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#define GLfloat_def(num) float GLfloat_var(num)
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/* typedef char *GLstring; */
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#define GLstring_str "s"
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#define GLstring_var(number) bgl_var##number
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#define GLstring_ref(number) &bgl_var##number
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#define GLstring_def(number) char *GLstring_var(number)
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/* typedef float GLclampf; */
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#define GLclampf_str "f"
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#define GLclampf_var(num) bgl_var##num
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#define GLclampf_ref(num) &bgl_var##num
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#define GLclampf_def(num) float GLclampf_var(num)
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/* typedef double GLdouble; */
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#define GLdouble_str "d"
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#define GLdouble_var(num) bgl_var##num
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#define GLdouble_ref(num) &bgl_var##num
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#define GLdouble_def(num) double GLdouble_var(num)
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/* typedef double GLclampd; */
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#define GLclampd_str "d"
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#define GLclampd_var(num) bgl_var##num
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#define GLclampd_ref(num) &bgl_var##num
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#define GLclampd_def(num) double GLclampd_var(num)
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/* typedef void GLvoid; */
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/* #define GLvoid_str "" */
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/* #define GLvoid_var(num) bgl_var##num */
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/* #define GLvoid_ref(num) &bgl_var##num */
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/* #define GLvoid_def(num) char bgl_var##num */
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#define arg_def1(a1) a1##_def(1)
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#define arg_def2(a1, a2) arg_def1(a1); a2##_def(2)
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#define arg_def3(a1, a2, a3) arg_def2(a1, a2); a3##_def(3)
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#define arg_def4(a1, a2, a3, a4) arg_def3(a1, a2, a3); a4##_def(4)
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#define arg_def5(a1, a2, a3, a4, a5) arg_def4(a1, a2, a3, a4); a5##_def(5)
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#define arg_def6(a1, a2, a3, a4, a5, a6)arg_def5(a1, a2, a3, a4, a5); a6##_def(6)
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#define arg_def7(a1, a2, a3, a4, a5, a6, a7)arg_def6(a1, a2, a3, a4, a5, a6); a7##_def(7)
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#define arg_def8(a1, a2, a3, a4, a5, a6, a7, a8)arg_def7(a1, a2, a3, a4, a5, a6, a7); a8##_def(8)
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#define arg_def9(a1, a2, a3, a4, a5, a6, a7, a8, a9)arg_def8(a1, a2, a3, a4, a5, a6, a7, a8); a9##_def(9)
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#define arg_def10(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10)arg_def9(a1, a2, a3, a4, a5, a6, a7, a8, a9); a10##_def(10)
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#define arg_var1(a1) a1##_var(1)
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#define arg_var2(a1, a2) arg_var1(a1), a2##_var(2)
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#define arg_var3(a1, a2, a3) arg_var2(a1, a2), a3##_var(3)
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#define arg_var4(a1, a2, a3, a4) arg_var3(a1, a2, a3), a4##_var(4)
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#define arg_var5(a1, a2, a3, a4, a5) arg_var4(a1, a2, a3, a4), a5##_var(5)
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#define arg_var6(a1, a2, a3, a4, a5, a6)arg_var5(a1, a2, a3, a4, a5), a6##_var(6)
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#define arg_var7(a1, a2, a3, a4, a5, a6, a7)arg_var6(a1, a2, a3, a4, a5, a6), a7##_var(7)
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#define arg_var8(a1, a2, a3, a4, a5, a6, a7, a8)arg_var7(a1, a2, a3, a4, a5, a6, a7), a8##_var(8)
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#define arg_var9(a1, a2, a3, a4, a5, a6, a7, a8, a9)arg_var8(a1, a2, a3, a4, a5, a6, a7, a8), a9##_var(9)
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#define arg_var10(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10)arg_var9(a1, a2, a3, a4, a5, a6, a7, a8, a9), a10##_var(10)
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#define arg_ref1(a1) a1##_ref(1)
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#define arg_ref2(a1, a2) arg_ref1(a1), a2##_ref(2)
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#define arg_ref3(a1, a2, a3) arg_ref2(a1, a2), a3##_ref(3)
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#define arg_ref4(a1, a2, a3, a4) arg_ref3(a1, a2, a3), a4##_ref(4)
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#define arg_ref5(a1, a2, a3, a4, a5) arg_ref4(a1, a2, a3, a4), a5##_ref(5)
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#define arg_ref6(a1, a2, a3, a4, a5, a6)arg_ref5(a1, a2, a3, a4, a5), a6##_ref(6)
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#define arg_ref7(a1, a2, a3, a4, a5, a6, a7)arg_ref6(a1, a2, a3, a4, a5, a6), a7##_ref(7)
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#define arg_ref8(a1, a2, a3, a4, a5, a6, a7, a8)arg_ref7(a1, a2, a3, a4, a5, a6, a7), a8##_ref(8)
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#define arg_ref9(a1, a2, a3, a4, a5, a6, a7, a8, a9)arg_ref8(a1, a2, a3, a4, a5, a6, a7, a8), a9##_ref(9)
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#define arg_ref10(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10)arg_ref9(a1, a2, a3, a4, a5, a6, a7, a8, a9), a10##_ref(10)
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#define arg_str1(a1) a1##_str
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#define arg_str2(a1, a2) arg_str1(a1) a2##_str
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#define arg_str3(a1, a2, a3) arg_str2(a1, a2) a3##_str
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#define arg_str4(a1, a2, a3, a4) arg_str3(a1, a2, a3) a4##_str
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#define arg_str5(a1, a2, a3, a4, a5) arg_str4(a1, a2, a3, a4) a5##_str
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#define arg_str6(a1, a2, a3, a4, a5, a6)arg_str5(a1, a2, a3, a4, a5) a6##_str
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#define arg_str7(a1, a2, a3, a4, a5, a6, a7)arg_str6(a1, a2, a3, a4, a5, a6) a7##_str
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#define arg_str8(a1, a2, a3, a4, a5, a6, a7, a8)arg_str7(a1, a2, a3, a4, a5, a6, a7) a8##_str
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#define arg_str9(a1, a2, a3, a4, a5, a6, a7, a8, a9)arg_str8(a1, a2, a3, a4, a5, a6, a7, a8) a9##_str
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#define arg_str10(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10)arg_str9(a1, a2, a3, a4, a5, a6, a7, a8, a9) a10##_str
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#define ret_def_void
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#define ret_set_void
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#define ret_ret_void return Py_INCREF(Py_None), Py_None
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#define ret_def_GLint int ret_int
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#define ret_set_GLint ret_int =
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#define ret_ret_GLint return PyLong_FromLong(ret_int)
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#define ret_def_GLuint unsigned int ret_uint
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#define ret_set_GLuint ret_uint =
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#define ret_ret_GLuint return PyLong_FromLong((long) ret_uint)
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#define ret_def_GLenum unsigned int ret_uint
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#define ret_set_GLenum ret_uint =
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#define ret_ret_GLenum return PyLong_FromLong((long) ret_uint)
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#define ret_def_GLboolean unsigned char ret_bool
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#define ret_set_GLboolean ret_bool =
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#define ret_ret_GLboolean return PyLong_FromLong((long) ret_bool)
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#define ret_def_GLstring const unsigned char *ret_str
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#define ret_set_GLstring ret_str =
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#define ret_ret_GLstring \
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if (ret_str) { \
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return PyUnicode_FromString((const char *)ret_str); \
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} \
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else { \
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PyErr_SetString(PyExc_AttributeError, "could not get opengl string"); \
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return NULL; \
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} \
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#endif /* __BGL_H__ */
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