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/* Type Conversion Predeclarations */

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static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject*);
static CYTHON_INLINE PyObject* __Pyx_PyNumber_Int(PyObject* x);

static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject*);
static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t);
static CYTHON_INLINE size_t __Pyx_PyInt_AsSize_t(PyObject*);

#define __pyx_PyFloat_AsDouble(x) (PyFloat_CheckExact(x) ? PyFloat_AS_DOUBLE(x) : PyFloat_AsDouble(x))


#ifdef __GNUC__
/* Test for GCC > 2.95 */
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static PyObject *__pyx_m;
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static PyObject *__pyx_empty_bytes;
static int __pyx_lineno;
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static const char *__pyx_filename;


static const char *__pyx_f[] = {
  "shader.pyx",
  "transformation.pxd",
  "buffer.pxd",
  "vbo.pxd",
};

/* Type declarations */

typedef double __pyx_t_4kivy_8graphics_14transformation_matrix_t[16];

/* "/home/tito/code/kivy/kivy/graphics/vertex.pxd":3
 * from c_opengl cimport GLuint
 * 
 * cdef struct vertex_t:             # <<<<<<<<<<<<<<
 *     float x, y
 *     float s0, t0
 */

struct __pyx_t_4kivy_8graphics_6vertex_vertex_t {
  float x;
  float y;
  float s0;
  float t0;
};

/* "/home/tito/code/kivy/kivy/graphics/vertex.pxd":7
 *     float s0, t0
 * 
 * ctypedef struct vertex_attr_t:             # <<<<<<<<<<<<<<
 *     char *name
 *     unsigned int index
 */

typedef struct {
  char *name;
  unsigned int index;
  unsigned int size;
  GLuint type;
  unsigned int bytesize;
  int per_vertex;
} __pyx_t_4kivy_8graphics_6vertex_vertex_attr_t;

/* "/home/tito/code/kivy/kivy/graphics/vbo.pxd":27
 * 
 * 
 * cdef class VertexBatch:             # <<<<<<<<<<<<<<
 *     cdef VBO vbo
 *     cdef Buffer elements
 */

struct __pyx_obj_4kivy_8graphics_3vbo_VertexBatch {
  PyObject_HEAD
  struct __pyx_vtabstruct_4kivy_8graphics_3vbo_VertexBatch *__pyx_vtab;
  struct __pyx_obj_4kivy_8graphics_3vbo_VBO *vbo;
  struct __pyx_obj_4kivy_8graphics_6buffer_Buffer *elements;
  struct __pyx_obj_4kivy_8graphics_6buffer_Buffer *vbo_index;
  GLuint mode;
  struct __pyx_t_4kivy_8graphics_6vertex_vertex_t *vertices;
  int vertices_count;
  int *indices;
  int indices_count;
};

/* "/home/tito/code/kivy/kivy/graphics/buffer.pxd":1
 * cdef class Buffer:             # <<<<<<<<<<<<<<
 *     cdef void *data
 *     cdef list l_free
 */

struct __pyx_obj_4kivy_8graphics_6buffer_Buffer {
  PyObject_HEAD
  struct __pyx_vtabstruct_4kivy_8graphics_6buffer_Buffer *__pyx_vtab;
  void *data;
  PyObject *l_free;
  int block_size;
  int block_count;
  int need_pack;
};

/* "/home/tito/code/kivy/kivy/graphics/vbo.pxd":8
 * cdef vertex_attr_t *vbo_vertex_attr_list()
 * 
 * cdef class VBO:             # <<<<<<<<<<<<<<
 *     cdef GLuint id
 *     cdef int usage
 */

struct __pyx_obj_4kivy_8graphics_3vbo_VBO {
  PyObject_HEAD
  struct __pyx_vtabstruct_4kivy_8graphics_3vbo_VBO *__pyx_vtab;
  GLuint id;
  int usage;
  int target;
  __pyx_t_4kivy_8graphics_6vertex_vertex_attr_t *format;
  int format_count;
  struct __pyx_obj_4kivy_8graphics_6buffer_Buffer *data;
  int need_upload;
  int vbo_size;
};

/* "/home/tito/code/kivy/kivy/graphics/shader.pxd":5
 * from transformation cimport Matrix
 * 
 * cdef class Shader:             # <<<<<<<<<<<<<<
 *     cdef int program
 *     cdef int vertex_shader
 */

struct __pyx_obj_4kivy_8graphics_6shader_Shader {
  PyObject_HEAD
  struct __pyx_vtabstruct_4kivy_8graphics_6shader_Shader *__pyx_vtab;
  int program;
  int vertex_shader;
  int fragment_shader;
  PyObject *vert_src;
  PyObject *frag_src;
  PyObject *uniform_locations;
  PyObject *uniform_values;
};

/* "/home/tito/code/kivy/kivy/graphics/transformation.pxd":3
 * ctypedef double matrix_t[16]
 * 
 * cdef class Matrix:             # <<<<<<<<<<<<<<
 *     cdef matrix_t mat
 *     cpdef Matrix identity(self)
 */

struct __pyx_obj_4kivy_8graphics_14transformation_Matrix {
  PyObject_HEAD
  struct __pyx_vtabstruct_4kivy_8graphics_14transformation_Matrix *__pyx_vtab;
  __pyx_t_4kivy_8graphics_14transformation_matrix_t mat;
};


/* "/home/tito/code/kivy/kivy/graphics/buffer.pxd":1
 * cdef class Buffer:             # <<<<<<<<<<<<<<
 *     cdef void *data
 *     cdef list l_free
 */

struct __pyx_vtabstruct_4kivy_8graphics_6buffer_Buffer {
  void (*clear)(struct __pyx_obj_4kivy_8graphics_6buffer_Buffer *);
  void (*grow)(struct __pyx_obj_4kivy_8graphics_6buffer_Buffer *, int);
  void (*add)(struct __pyx_obj_4kivy_8graphics_6buffer_Buffer *, void *, int *, int);
  void (*remove)(struct __pyx_obj_4kivy_8graphics_6buffer_Buffer *, int *, int);
  void (*pack)(struct __pyx_obj_4kivy_8graphics_6buffer_Buffer *);
  int (*count)(struct __pyx_obj_4kivy_8graphics_6buffer_Buffer *);
  int (*size)(struct __pyx_obj_4kivy_8graphics_6buffer_Buffer *);
  void *(*pointer)(struct __pyx_obj_4kivy_8graphics_6buffer_Buffer *);
  void *(*offset_pointer)(struct __pyx_obj_4kivy_8graphics_6buffer_Buffer *, int);
  void (*update)(struct __pyx_obj_4kivy_8graphics_6buffer_Buffer *, int, void *, int);
};
static struct __pyx_vtabstruct_4kivy_8graphics_6buffer_Buffer *__pyx_vtabptr_4kivy_8graphics_6buffer_Buffer;


/* "/home/tito/code/kivy/kivy/graphics/shader.pyx":30
 * 
 * 
 * cdef class Shader:             # <<<<<<<<<<<<<<
 *     '''Create a vertex or fragment shader
 * 
 */

struct __pyx_vtabstruct_4kivy_8graphics_6shader_Shader {
  void (*use)(struct __pyx_obj_4kivy_8graphics_6shader_Shader *);
  void (*stop)(struct __pyx_obj_4kivy_8graphics_6shader_Shader *);
  void (*set_uniform)(struct __pyx_obj_4kivy_8graphics_6shader_Shader *, PyObject *, PyObject *);
  void (*upload_uniform)(struct __pyx_obj_4kivy_8graphics_6shader_Shader *, PyObject *, PyObject *);
  void (*upload_uniform_matrix)(struct __pyx_obj_4kivy_8graphics_6shader_Shader *, PyObject *, struct __pyx_obj_4kivy_8graphics_14transformation_Matrix *);
  int (*get_uniform_loc)(struct __pyx_obj_4kivy_8graphics_6shader_Shader *, PyObject *);
  void (*bind_attrib_locations)(struct __pyx_obj_4kivy_8graphics_6shader_Shader *);
  void (*build)(struct __pyx_obj_4kivy_8graphics_6shader_Shader *);
  int (*is_linked)(struct __pyx_obj_4kivy_8graphics_6shader_Shader *);
  GLuint (*compile_shader)(struct __pyx_obj_4kivy_8graphics_6shader_Shader *, char *, PyObject *);
  PyObject *(*get_shader_log)(struct __pyx_obj_4kivy_8graphics_6shader_Shader *, PyObject *);
  PyObject *(*get_program_log)(struct __pyx_obj_4kivy_8graphics_6shader_Shader *, PyObject *);
  void (*process_build_log)(struct __pyx_obj_4kivy_8graphics_6shader_Shader *);
  void (*process_message)(struct __pyx_obj_4kivy_8graphics_6shader_Shader *, PyObject *, PyObject *);
};
static struct __pyx_vtabstruct_4kivy_8graphics_6shader_Shader *__pyx_vtabptr_4kivy_8graphics_6shader_Shader;


/* "/home/tito/code/kivy/kivy/graphics/transformation.pxd":3
 * ctypedef double matrix_t[16]
 * 
 * cdef class Matrix:             # <<<<<<<<<<<<<<
 *     cdef matrix_t mat
 *     cpdef Matrix identity(self)
 */

struct __pyx_vtabstruct_4kivy_8graphics_14transformation_Matrix {
  struct __pyx_obj_4kivy_8graphics_14transformation_Matrix *(*identity)(struct __pyx_obj_4kivy_8graphics_14transformation_Matrix *, int __pyx_skip_dispatch);
  struct __pyx_obj_4kivy_8graphics_14transformation_Matrix *(*inverse)(struct __pyx_obj_4kivy_8graphics_14transformation_Matrix *, int __pyx_skip_dispatch);
  struct __pyx_obj_4kivy_8graphics_14transformation_Matrix *(*multiply)(struct __pyx_obj_4kivy_8graphics_14transformation_Matrix *, struct __pyx_obj_4kivy_8graphics_14transformation_Matrix *, int __pyx_skip_dispatch);
  struct __pyx_obj_4kivy_8graphics_14transformation_Matrix *(*rotate)(struct __pyx_obj_4kivy_8graphics_14transformation_Matrix *, double, double, double, double, int __pyx_skip_dispatch);
  struct __pyx_obj_4kivy_8graphics_14transformation_Matrix *(*scale)(struct __pyx_obj_4kivy_8graphics_14transformation_Matrix *, double, double, double, int __pyx_skip_dispatch);
  struct __pyx_obj_4kivy_8graphics_14transformation_Matrix *(*translate)(struct __pyx_obj_4kivy_8graphics_14transformation_Matrix *, double, double, double, int __pyx_skip_dispatch);
  struct __pyx_obj_4kivy_8graphics_14transformation_Matrix *(*view_clip)(struct __pyx_obj_4kivy_8graphics_14transformation_Matrix *, double, double, double, double, double, double, int, int __pyx_skip_dispatch);
  PyObject *(*transform_point)(struct __pyx_obj_4kivy_8graphics_14transformation_Matrix *, double, double, double, int __pyx_skip_dispatch);
};
static struct __pyx_vtabstruct_4kivy_8graphics_14transformation_Matrix *__pyx_vtabptr_4kivy_8graphics_14transformation_Matrix;


/* "/home/tito/code/kivy/kivy/graphics/vbo.pxd":8
 * cdef vertex_attr_t *vbo_vertex_attr_list()
 * 
 * cdef class VBO:             # <<<<<<<<<<<<<<
 *     cdef GLuint id
 *     cdef int usage
 */

struct __pyx_vtabstruct_4kivy_8graphics_3vbo_VBO {
  void (*allocate_buffer)(struct __pyx_obj_4kivy_8graphics_3vbo_VBO *);
  void (*update_buffer)(struct __pyx_obj_4kivy_8graphics_3vbo_VBO *);
  void (*bind)(struct __pyx_obj_4kivy_8graphics_3vbo_VBO *);
  void (*unbind)(struct __pyx_obj_4kivy_8graphics_3vbo_VBO *);
  void (*add_vertex_data)(struct __pyx_obj_4kivy_8graphics_3vbo_VBO *, void *, int *, int);
  void (*update_vertex_data)(struct __pyx_obj_4kivy_8graphics_3vbo_VBO *, int, struct __pyx_t_4kivy_8graphics_6vertex_vertex_t *, int);
  void (*remove_vertex_data)(struct __pyx_obj_4kivy_8graphics_3vbo_VBO *, int *, int);
};
static struct __pyx_vtabstruct_4kivy_8graphics_3vbo_VBO *__pyx_vtabptr_4kivy_8graphics_3vbo_VBO;


/* "/home/tito/code/kivy/kivy/graphics/vbo.pxd":27
 * 
 * 
 * cdef class VertexBatch:             # <<<<<<<<<<<<<<
 *     cdef VBO vbo
 *     cdef Buffer elements
 */

struct __pyx_vtabstruct_4kivy_8graphics_3vbo_VertexBatch {
  void (*set_data)(struct __pyx_obj_4kivy_8graphics_3vbo_VertexBatch *, struct __pyx_t_4kivy_8graphics_6vertex_vertex_t *, int, int *, int);
  void (*append_data)(struct __pyx_obj_4kivy_8graphics_3vbo_VertexBatch *, struct __pyx_t_4kivy_8graphics_6vertex_vertex_t *, int, int *, int);
  void (*draw)(struct __pyx_obj_4kivy_8graphics_3vbo_VertexBatch *);
  void (*set_mode)(struct __pyx_obj_4kivy_8graphics_3vbo_VertexBatch *, PyObject *);
};
static struct __pyx_vtabstruct_4kivy_8graphics_3vbo_VertexBatch *__pyx_vtabptr_4kivy_8graphics_3vbo_VertexBatch;

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/* "/home/tito/code/kivy/kivy/graphics/shader.pyx":39
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  __pyx_ptype_4kivy_8graphics_3vbo_VertexBatch = __Pyx_ImportType("kivy.graphics.vbo", "VertexBatch", sizeof(struct __pyx_obj_4kivy_8graphics_3vbo_VertexBatch), 1); if (unlikely(!__pyx_ptype_4kivy_8graphics_3vbo_VertexBatch)) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 27; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
  if (__Pyx_GetVtable(__pyx_ptype_4kivy_8graphics_3vbo_VertexBatch->tp_dict, &__pyx_vtabptr_4kivy_8graphics_3vbo_VertexBatch) < 0) {__pyx_filename = __pyx_f[3]; __pyx_lineno = 27; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
  /*--- Function import code ---*/
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  if (__Pyx_ImportFunction(__pyx_t_1, "vbo_vertex_attr_count", (void (**)(void))&__pyx_f_4kivy_8graphics_3vbo_vbo_vertex_attr_count, "int (void)") < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
  if (__Pyx_ImportFunction(__pyx_t_1, "vbo_vertex_attr_list", (void (**)(void))&__pyx_f_4kivy_8graphics_3vbo_vbo_vertex_attr_list, "__pyx_t_4kivy_8graphics_6vertex_vertex_attr_t *(void)") < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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  /* "/home/tito/code/kivy/kivy/graphics/shader.pyx":16
 * '''
 * 
 * __all__ = ('Shader', )             # <<<<<<<<<<<<<<
 * 
 * include "config.pxi"
 */
  if (PyObject_SetAttr(__pyx_m, __pyx_n_s____all__, ((PyObject *)__pyx_k_tuple_13)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 16; __pyx_clineno = __LINE__; goto __pyx_L1_error;}

  /* "/home/tito/code/kivy/kivy/graphics/common.pxi":5
 * #
 * 
 * cdef double pi = 3.1415926535897931             # <<<<<<<<<<<<<<
 * cdef extern from "math.h":
 *     double cos(double) nogil
 */
  __pyx_v_4kivy_8graphics_6shader_pi = 3.1415926535897931;

  /* "/home/tito/code/kivy/kivy/graphics/shader.pyx":27
 * from kivy.graphics.vbo cimport vbo_vertex_attr_list, vbo_vertex_attr_count
 * from kivy.graphics.transformation cimport Matrix
 * from kivy.logger import Logger             # <<<<<<<<<<<<<<
 * 
 * 
 */
  __pyx_t_2 = PyList_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 27; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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  __Pyx_INCREF(((PyObject *)__pyx_n_s__Logger));
  PyList_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_n_s__Logger));
  __Pyx_GIVEREF(((PyObject *)__pyx_n_s__Logger));
  __pyx_t_3 = __Pyx_Import(((PyObject *)__pyx_n_s_14), ((PyObject *)__pyx_t_2)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 27; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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  __Pyx_GOTREF(__pyx_t_2);
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  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;

  /* "/home/tito/code/kivy/kivy/graphics/shader.pyx":1
 * #cython: embedsignature=True             # <<<<<<<<<<<<<<
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 * '''
 */
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  /* "/home/tito/code/kivy/kivy/graphics/shader.pxd":2
 * 
 * from c_opengl cimport GLuint             # <<<<<<<<<<<<<<
 * from transformation cimport Matrix
 * 
 */
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/* Runtime support code */

static PyObject *__Pyx_GetName(PyObject *dict, PyObject *name) {
    PyObject *result;
    result = PyObject_GetAttr(dict, name);
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        PyErr_SetObject(PyExc_NameError, name);
    return result;
}

static void __Pyx_RaiseArgtupleInvalid(
    const char* func_name,
    int exact,
    Py_ssize_t num_min,
    Py_ssize_t num_max,
    Py_ssize_t num_found)
{
    Py_ssize_t num_expected;
    const char *number, *more_or_less;

    if (num_found < num_min) {
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        more_or_less = "at least";
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        num_expected = num_max;
        more_or_less = "at most";
    }
    if (exact) {
        more_or_less = "exactly";
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    number = (num_expected == 1) ? "" : "s";
    PyErr_Format(PyExc_TypeError,
        #if PY_VERSION_HEX < 0x02050000
            "%s() takes %s %d positional argument%s (%d given)",
        #else
            "%s() takes %s %zd positional argument%s (%zd given)",
        #endif
        func_name, more_or_less, num_expected, number, num_found);
}

static CYTHON_INLINE int __Pyx_CheckKeywordStrings(
    PyObject *kwdict,
    const char* function_name,
    int kw_allowed)
{
    PyObject* key = 0;
    Py_ssize_t pos = 0;
    while (PyDict_Next(kwdict, &pos, &key, 0)) {
        #if PY_MAJOR_VERSION < 3
        if (unlikely(!PyString_CheckExact(key)) && unlikely(!PyString_Check(key)))
        #else
        if (unlikely(!PyUnicode_CheckExact(key)) && unlikely(!PyUnicode_Check(key)))
        #endif
            goto invalid_keyword_type;
    }
    if ((!kw_allowed) && unlikely(key))
        goto invalid_keyword;
    return 1;
invalid_keyword_type:
    PyErr_Format(PyExc_TypeError,
        "%s() keywords must be strings", function_name);
    return 0;
invalid_keyword:
    PyErr_Format(PyExc_TypeError,
    #if PY_MAJOR_VERSION < 3
        "%s() got an unexpected keyword argument '%s'",
        function_name, PyString_AsString(key));
    #else
        "%s() got an unexpected keyword argument '%U'",
        function_name, key);
    #endif
    return 0;
}

static void __Pyx_RaiseDoubleKeywordsError(
    const char* func_name,
    PyObject* kw_name)
{
    PyErr_Format(PyExc_TypeError,
        #if PY_MAJOR_VERSION >= 3
        "%s() got multiple values for keyword argument '%U'", func_name, kw_name);
        #else
        "%s() got multiple values for keyword argument '%s'", func_name,
        PyString_AS_STRING(kw_name));
        #endif
}

static int __Pyx_ParseOptionalKeywords(
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    PyObject **argnames[],
    PyObject *kwds2,
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    Py_ssize_t num_pos_args,
    const char* function_name)
{
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    Py_ssize_t pos = 0;
    PyObject*** name;
    PyObject*** first_kw_arg = argnames + num_pos_args;

    while (PyDict_Next(kwds, &pos, &key, &value)) {
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        while (*name && (**name != key)) name++;
        if (*name) {
            values[name-argnames] = value;
        } else {
            #if PY_MAJOR_VERSION < 3
            if (unlikely(!PyString_CheckExact(key)) && unlikely(!PyString_Check(key))) {
            #else
            if (unlikely(!PyUnicode_CheckExact(key)) && unlikely(!PyUnicode_Check(key))) {
            #endif
                goto invalid_keyword_type;
            } else {
                for (name = first_kw_arg; *name; name++) {
                    #if PY_MAJOR_VERSION >= 3
                    if (PyUnicode_GET_SIZE(**name) == PyUnicode_GET_SIZE(key) &&
                        PyUnicode_Compare(**name, key) == 0) break;
                    #else
                    if (PyString_GET_SIZE(**name) == PyString_GET_SIZE(key) &&
                        _PyString_Eq(**name, key)) break;
                    #endif
                }
                if (*name) {
                    values[name-argnames] = value;
                } else {
                    /* unexpected keyword found */
                    for (name=argnames; name != first_kw_arg; name++) {
                        if (**name == key) goto arg_passed_twice;
                        #if PY_MAJOR_VERSION >= 3
                        if (PyUnicode_GET_SIZE(**name) == PyUnicode_GET_SIZE(key) &&
                            PyUnicode_Compare(**name, key) == 0) goto arg_passed_twice;
                        #else
                        if (PyString_GET_SIZE(**name) == PyString_GET_SIZE(key) &&
                            _PyString_Eq(**name, key)) goto arg_passed_twice;
                        #endif
                    }
                    if (kwds2) {
                        if (unlikely(PyDict_SetItem(kwds2, key, value))) goto bad;
                    } else {
                        goto invalid_keyword;
                    }
                }
            }
        }
    }
    return 0;
arg_passed_twice:
    __Pyx_RaiseDoubleKeywordsError(function_name, **name);
    goto bad;
invalid_keyword_type:
    PyErr_Format(PyExc_TypeError,
        "%s() keywords must be strings", function_name);
    goto bad;
invalid_keyword:
    PyErr_Format(PyExc_TypeError,
    #if PY_MAJOR_VERSION < 3
        "%s() got an unexpected keyword argument '%s'",
        function_name, PyString_AsString(key));
    #else
        "%s() got an unexpected keyword argument '%U'",
        function_name, key);
    #endif
bad:
    return -1;
}

static int __Pyx_ArgTypeTest(PyObject *obj, PyTypeObject *type, int none_allowed,
    const char *name, int exact)
{
    if (!type) {
        PyErr_Format(PyExc_SystemError, "Missing type object");
        return 0;
    }
    if (none_allowed && obj == Py_None) return 1;
    else if (exact) {
        if (Py_TYPE(obj) == type) return 1;
    }
    else {
        if (PyObject_TypeCheck(obj, type)) return 1;
    }
    PyErr_Format(PyExc_TypeError,
        "Argument '%s' has incorrect type (expected %s, got %s)",
        name, type->tp_name, Py_TYPE(obj)->tp_name);
    return 0;
}

static CYTHON_INLINE int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type) {
    if (unlikely(!type)) {
        PyErr_Format(PyExc_SystemError, "Missing type object");
        return 0;
    }
    if (likely(PyObject_TypeCheck(obj, type)))
        return 1;
    PyErr_Format(PyExc_TypeError, "Cannot convert %.200s to %.200s",
                 Py_TYPE(obj)->tp_name, type->tp_name);
    return 0;
}


static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list) {
    PyObject *py_import = 0;
    PyObject *empty_list = 0;
    PyObject *module = 0;
    PyObject *global_dict = 0;
    PyObject *empty_dict = 0;
    PyObject *list;
    py_import = __Pyx_GetAttrString(__pyx_b, "__import__");
    if (!py_import)
        goto bad;
    if (from_list)
        list = from_list;
    else {
        empty_list = PyList_New(0);
        if (!empty_list)
            goto bad;
        list = empty_list;
    }
    global_dict = PyModule_GetDict(__pyx_m);
    if (!global_dict)
        goto bad;
    empty_dict = PyDict_New();
    if (!empty_dict)
        goto bad;
    module = PyObject_CallFunctionObjArgs(py_import,
        name, global_dict, empty_dict, list, NULL);
bad:
    Py_XDECREF(empty_list);
    Py_XDECREF(py_import);
    Py_XDECREF(empty_dict);
    return module;
}

static CYTHON_INLINE GLint __Pyx_PyInt_from_py_GLint(PyObject* x) {
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        if (is_unsigned)
            return (GLint)__Pyx_PyInt_AsUnsignedChar(x);
        else
            return (GLint)__Pyx_PyInt_AsSignedChar(x);
    } else if (sizeof(GLint) == sizeof(short)) {
        if (is_unsigned)
            return (GLint)__Pyx_PyInt_AsUnsignedShort(x);
        else
            return (GLint)__Pyx_PyInt_AsSignedShort(x);
    } else if (sizeof(GLint) == sizeof(int)) {
        if (is_unsigned)
            return (GLint)__Pyx_PyInt_AsUnsignedInt(x);
        else
            return (GLint)__Pyx_PyInt_AsSignedInt(x);
    } else if (sizeof(GLint) == sizeof(long)) {
        if (is_unsigned)
            return (GLint)__Pyx_PyInt_AsUnsignedLong(x);
        else
            return (GLint)__Pyx_PyInt_AsSignedLong(x);
    } else if (sizeof(GLint) == sizeof(PY_LONG_LONG)) {
        if (is_unsigned)
            return (GLint)__Pyx_PyInt_AsUnsignedLongLong(x);
        else
            return (GLint)__Pyx_PyInt_AsSignedLongLong(x);
    }  else {
        GLint val;
        PyObject *v = __Pyx_PyNumber_Int(x);
        #if PY_VERSION_HEX < 0x03000000
        if (likely(v) && !PyLong_Check(v)) {
            PyObject *tmp = v;
            v = PyNumber_Long(tmp);
            Py_DECREF(tmp);
        }
        #endif
        if (likely(v)) {
            int one = 1; int is_little = (int)*(unsigned char *)&one;
            unsigned char *bytes = (unsigned char *)&val;
            int ret = _PyLong_AsByteArray((PyLongObject *)v,
                                          bytes, sizeof(val),
                                          is_little, !is_unsigned);
            Py_DECREF(v);
            if (likely(!ret))
                return val;
        }
        return (GLint)-1;
    }
}

static CYTHON_INLINE void __Pyx_ErrRestore(PyObject *type, PyObject *value, PyObject *tb) {
    PyObject *tmp_type, *tmp_value, *tmp_tb;
    PyThreadState *tstate = PyThreadState_GET();

    tmp_type = tstate->curexc_type;
    tmp_value = tstate->curexc_value;
    tmp_tb = tstate->curexc_traceback;
    tstate->curexc_type = type;
    tstate->curexc_value = value;
    tstate->curexc_traceback = tb;
    Py_XDECREF(tmp_type);
    Py_XDECREF(tmp_value);
    Py_XDECREF(tmp_tb);
}

static CYTHON_INLINE void __Pyx_ErrFetch(PyObject **type, PyObject **value, PyObject **tb) {
    PyThreadState *tstate = PyThreadState_GET();
    *type = tstate->curexc_type;
    *value = tstate->curexc_value;
    *tb = tstate->curexc_traceback;

    tstate->curexc_type = 0;
    tstate->curexc_value = 0;
    tstate->curexc_traceback = 0;
}


#if PY_MAJOR_VERSION < 3
static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb) {
    Py_XINCREF(type);
    Py_XINCREF(value);
    Py_XINCREF(tb);
    /* First, check the traceback argument, replacing None with NULL. */
    if (tb == Py_None) {
        Py_DECREF(tb);
        tb = 0;
    }
    else if (tb != NULL && !PyTraceBack_Check(tb)) {
        PyErr_SetString(PyExc_TypeError,
            "raise: arg 3 must be a traceback or None");
        goto raise_error;
    }
    /* Next, replace a missing value with None */
    if (value == NULL) {
        value = Py_None;
        Py_INCREF(value);
    }
    #if PY_VERSION_HEX < 0x02050000
    if (!PyClass_Check(type))
    #else
    if (!PyType_Check(type))
    #endif
    {
        /* Raising an instance.  The value should be a dummy. */
        if (value != Py_None) {
            PyErr_SetString(PyExc_TypeError,
                "instance exception may not have a separate value");
            goto raise_error;
        }
        /* Normalize to raise <class>, <instance> */
        Py_DECREF(value);
        value = type;
        #if PY_VERSION_HEX < 0x02050000
            if (PyInstance_Check(type)) {
                type = (PyObject*) ((PyInstanceObject*)type)->in_class;
                Py_INCREF(type);
            }
            else {
                type = 0;
                PyErr_SetString(PyExc_TypeError,
                    "raise: exception must be an old-style class or instance");
                goto raise_error;
            }
        #else
            type = (PyObject*) Py_TYPE(type);
            Py_INCREF(type);
            if (!PyType_IsSubtype((PyTypeObject *)type, (PyTypeObject *)PyExc_BaseException)) {
                PyErr_SetString(PyExc_TypeError,
                    "raise: exception class must be a subclass of BaseException");
                goto raise_error;
            }
        #endif
    }

    __Pyx_ErrRestore(type, value, tb);
    return;
raise_error:
    Py_XDECREF(value);
    Py_XDECREF(type);
    Py_XDECREF(tb);
    return;
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#else /* Python 3+ */

static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb) {
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        tb = 0;
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        PyErr_SetString(PyExc_TypeError,
            "raise: arg 3 must be a traceback or None");
        goto bad;
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    if (value == Py_None)
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    if (PyExceptionInstance_Check(type)) {
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            PyErr_SetString(PyExc_TypeError,
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            goto bad;
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        PyErr_SetString(PyExc_TypeError,
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        goto bad;
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    PyErr_SetObject(type, value);

    if (tb) {
        PyThreadState *tstate = PyThreadState_GET();
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bad:
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#endif

static CYTHON_INLINE GLenum __Pyx_PyInt_from_py_GLenum(PyObject* x) {
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        if (is_unsigned)
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            return (GLenum)__Pyx_PyInt_AsSignedChar(x);
    } else if (sizeof(GLenum) == sizeof(short)) {
        if (is_unsigned)
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            return (GLenum)__Pyx_PyInt_AsSignedShort(x);
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        if (is_unsigned)
            return (GLenum)__Pyx_PyInt_AsUnsignedInt(x);
        else
            return (GLenum)__Pyx_PyInt_AsSignedInt(x);
    } else if (sizeof(GLenum) == sizeof(long)) {
        if (is_unsigned)
            return (GLenum)__Pyx_PyInt_AsUnsignedLong(x);
        else
            return (GLenum)__Pyx_PyInt_AsSignedLong(x);
    } else if (sizeof(GLenum) == sizeof(PY_LONG_LONG)) {
        if (is_unsigned)
            return (GLenum)__Pyx_PyInt_AsUnsignedLongLong(x);
        else
            return (GLenum)__Pyx_PyInt_AsSignedLongLong(x);
    }  else {
        GLenum val;
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        #if PY_VERSION_HEX < 0x03000000
        if (likely(v) && !PyLong_Check(v)) {
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        if (likely(v)) {
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            unsigned char *bytes = (unsigned char *)&val;
            int ret = _PyLong_AsByteArray((PyLongObject *)v,
                                          bytes, sizeof(val),
                                          is_little, !is_unsigned);
            Py_DECREF(v);
            if (likely(!ret))
                return val;
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        return (GLenum)-1;
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static CYTHON_INLINE GLuint __Pyx_PyInt_from_py_GLuint(PyObject* x) {
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    if (sizeof(GLuint) == sizeof(char)) {
        if (is_unsigned)
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        else
            return (GLuint)__Pyx_PyInt_AsSignedChar(x);
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        if (is_unsigned)
            return (GLuint)__Pyx_PyInt_AsUnsignedShort(x);
        else
            return (GLuint)__Pyx_PyInt_AsSignedShort(x);
    } else if (sizeof(GLuint) == sizeof(int)) {
        if (is_unsigned)
            return (GLuint)__Pyx_PyInt_AsUnsignedInt(x);
        else
            return (GLuint)__Pyx_PyInt_AsSignedInt(x);
    } else if (sizeof(GLuint) == sizeof(long)) {
        if (is_unsigned)
            return (GLuint)__Pyx_PyInt_AsUnsignedLong(x);
        else
            return (GLuint)__Pyx_PyInt_AsSignedLong(x);
    } else if (sizeof(GLuint) == sizeof(PY_LONG_LONG)) {
        if (is_unsigned)
            return (GLuint)__Pyx_PyInt_AsUnsignedLongLong(x);
        else
            return (GLuint)__Pyx_PyInt_AsSignedLongLong(x);
    }  else {
        GLuint val;
        PyObject *v = __Pyx_PyNumber_Int(x);
        #if PY_VERSION_HEX < 0x03000000
        if (likely(v) && !PyLong_Check(v)) {
            PyObject *tmp = v;
            v = PyNumber_Long(tmp);
            Py_DECREF(tmp);
        }
        #endif
        if (likely(v)) {
            int one = 1; int is_little = (int)*(unsigned char *)&one;
            unsigned char *bytes = (unsigned char *)&val;
            int ret = _PyLong_AsByteArray((PyLongObject *)v,
                                          bytes, sizeof(val),
                                          is_little, !is_unsigned);
            Py_DECREF(v);
            if (likely(!ret))
                return val;
        }
        return (GLuint)-1;
    }
}

static CYTHON_INLINE PyObject *__Pyx_PyInt_to_py_GLenum(GLenum val) {
    const GLenum neg_one = (GLenum)-1, const_zero = (GLenum)0;
    const int is_unsigned = const_zero < neg_one;
    if ((sizeof(GLenum) == sizeof(char))  ||
        (sizeof(GLenum) == sizeof(short))) {
        return PyInt_FromLong((long)val);
    } else if ((sizeof(GLenum) == sizeof(int)) ||
               (sizeof(GLenum) == sizeof(long))) {
        if (is_unsigned)
            return PyLong_FromUnsignedLong((unsigned long)val);
        else
            return PyInt_FromLong((long)val);
    } else if (sizeof(GLenum) == sizeof(PY_LONG_LONG)) {
        if (is_unsigned)
            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG)val);
        else
            return PyLong_FromLongLong((PY_LONG_LONG)val);
    } else {
        int one = 1; int little = (int)*(unsigned char *)&one;
        unsigned char *bytes = (unsigned char *)&val;
        return _PyLong_FromByteArray(bytes, sizeof(GLenum),
                                     little, !is_unsigned);
    }
}

static CYTHON_INLINE unsigned char __Pyx_PyInt_AsUnsignedChar(PyObject* x) {
    const unsigned char neg_one = (unsigned char)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
    if (sizeof(unsigned char) < sizeof(long)) {
        long val = __Pyx_PyInt_AsLong(x);
        if (unlikely(val != (long)(unsigned char)val)) {
            if (!unlikely(val == -1 && PyErr_Occurred())) {
                PyErr_SetString(PyExc_OverflowError,
                    (is_unsigned && unlikely(val < 0)) ?
                    "can't convert negative value to unsigned char" :
                    "value too large to convert to unsigned char");
            }
            return (unsigned char)-1;
        }
        return (unsigned char)val;
    }
    return (unsigned char)__Pyx_PyInt_AsUnsignedLong(x);
}

static CYTHON_INLINE unsigned short __Pyx_PyInt_AsUnsignedShort(PyObject* x) {
    const unsigned short neg_one = (unsigned short)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
    if (sizeof(unsigned short) < sizeof(long)) {
        long val = __Pyx_PyInt_AsLong(x);
        if (unlikely(val != (long)(unsigned short)val)) {
            if (!unlikely(val == -1 && PyErr_Occurred())) {
                PyErr_SetString(PyExc_OverflowError,
                    (is_unsigned && unlikely(val < 0)) ?
                    "can't convert negative value to unsigned short" :
                    "value too large to convert to unsigned short");
            }
            return (unsigned short)-1;
        }
        return (unsigned short)val;
    }
    return (unsigned short)__Pyx_PyInt_AsUnsignedLong(x);
}

static CYTHON_INLINE unsigned int __Pyx_PyInt_AsUnsignedInt(PyObject* x) {
    const unsigned int neg_one = (unsigned int)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
    if (sizeof(unsigned int) < sizeof(long)) {
        long val = __Pyx_PyInt_AsLong(x);
        if (unlikely(val != (long)(unsigned int)val)) {
            if (!unlikely(val == -1 && PyErr_Occurred())) {
                PyErr_SetString(PyExc_OverflowError,
                    (is_unsigned && unlikely(val < 0)) ?
                    "can't convert negative value to unsigned int" :
                    "value too large to convert to unsigned int");
            }
            return (unsigned int)-1;
        }
        return (unsigned int)val;
    }
    return (unsigned int)__Pyx_PyInt_AsUnsignedLong(x);
}

static CYTHON_INLINE char __Pyx_PyInt_AsChar(PyObject* x) {
    const char neg_one = (char)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
    if (sizeof(char) < sizeof(long)) {
        long val = __Pyx_PyInt_AsLong(x);
        if (unlikely(val != (long)(char)val)) {
            if (!unlikely(val == -1 && PyErr_Occurred())) {
                PyErr_SetString(PyExc_OverflowError,
                    (is_unsigned && unlikely(val < 0)) ?
                    "can't convert negative value to char" :
                    "value too large to convert to char");
            }
            return (char)-1;
        }
        return (char)val;
    }
    return (char)__Pyx_PyInt_AsLong(x);
}

static CYTHON_INLINE short __Pyx_PyInt_AsShort(PyObject* x) {
    const short neg_one = (short)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
    if (sizeof(short) < sizeof(long)) {
        long val = __Pyx_PyInt_AsLong(x);
        if (unlikely(val != (long)(short)val)) {
            if (!unlikely(val == -1 && PyErr_Occurred())) {
                PyErr_SetString(PyExc_OverflowError,
                    (is_unsigned && unlikely(val < 0)) ?
                    "can't convert negative value to short" :
                    "value too large to convert to short");
            }
            return (short)-1;
        }
        return (short)val;
    }
    return (short)__Pyx_PyInt_AsLong(x);
}

static CYTHON_INLINE int __Pyx_PyInt_AsInt(PyObject* x) {
    const int neg_one = (int)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
    if (sizeof(int) < sizeof(long)) {
        long val = __Pyx_PyInt_AsLong(x);
        if (unlikely(val != (long)(int)val)) {
            if (!unlikely(val == -1 && PyErr_Occurred())) {
                PyErr_SetString(PyExc_OverflowError,
                    (is_unsigned && unlikely(val < 0)) ?
                    "can't convert negative value to int" :
                    "value too large to convert to int");
            }
            return (int)-1;
        }
        return (int)val;
    }
    return (int)__Pyx_PyInt_AsLong(x);
}

static CYTHON_INLINE signed char __Pyx_PyInt_AsSignedChar(PyObject* x) {
    const signed char neg_one = (signed char)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
    if (sizeof(signed char) < sizeof(long)) {
        long val = __Pyx_PyInt_AsLong(x);
        if (unlikely(val != (long)(signed char)val)) {
            if (!unlikely(val == -1 && PyErr_Occurred())) {
                PyErr_SetString(PyExc_OverflowError,
                    (is_unsigned && unlikely(val < 0)) ?
                    "can't convert negative value to signed char" :
                    "value too large to convert to signed char");
            }
            return (signed char)-1;
        }
        return (signed char)val;
    }
    return (signed char)__Pyx_PyInt_AsSignedLong(x);
}

static CYTHON_INLINE signed short __Pyx_PyInt_AsSignedShort(PyObject* x) {
    const signed short neg_one = (signed short)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
    if (sizeof(signed short) < sizeof(long)) {
        long val = __Pyx_PyInt_AsLong(x);
        if (unlikely(val != (long)(signed short)val)) {
            if (!unlikely(val == -1 && PyErr_Occurred())) {
                PyErr_SetString(PyExc_OverflowError,
                    (is_unsigned && unlikely(val < 0)) ?
                    "can't convert negative value to signed short" :
                    "value too large to convert to signed short");
            }
            return (signed short)-1;
        }
        return (signed short)val;
    }
    return (signed short)__Pyx_PyInt_AsSignedLong(x);
}

static CYTHON_INLINE signed int __Pyx_PyInt_AsSignedInt(PyObject* x) {
    const signed int neg_one = (signed int)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
    if (sizeof(signed int) < sizeof(long)) {
        long val = __Pyx_PyInt_AsLong(x);
        if (unlikely(val != (long)(signed int)val)) {
            if (!unlikely(val == -1 && PyErr_Occurred())) {
                PyErr_SetString(PyExc_OverflowError,
                    (is_unsigned && unlikely(val < 0)) ?
                    "can't convert negative value to signed int" :
                    "value too large to convert to signed int");
            }
            return (signed int)-1;
        }
        return (signed int)val;
    }
    return (signed int)__Pyx_PyInt_AsSignedLong(x);
}

static CYTHON_INLINE int __Pyx_PyInt_AsLongDouble(PyObject* x) {
    const int neg_one = (int)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
    if (sizeof(int) < sizeof(long)) {
        long val = __Pyx_PyInt_AsLong(x);
        if (unlikely(val != (long)(int)val)) {
            if (!unlikely(val == -1 && PyErr_Occurred())) {
                PyErr_SetString(PyExc_OverflowError,
                    (is_unsigned && unlikely(val < 0)) ?
                    "can't convert negative value to int" :
                    "value too large to convert to int");
            }
            return (int)-1;
        }
        return (int)val;
    }
    return (int)__Pyx_PyInt_AsLong(x);
}

static CYTHON_INLINE unsigned long __Pyx_PyInt_AsUnsignedLong(PyObject* x) {
    const unsigned long neg_one = (unsigned long)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
#if PY_VERSION_HEX < 0x03000000
    if (likely(PyInt_Check(x))) {
        long val = PyInt_AS_LONG(x);
        if (is_unsigned && unlikely(val < 0)) {
            PyErr_SetString(PyExc_OverflowError,
                            "can't convert negative value to unsigned long");
            return (unsigned long)-1;
        }
        return (unsigned long)val;
    } else
#endif
    if (likely(PyLong_Check(x))) {
        if (is_unsigned) {
            if (unlikely(Py_SIZE(x) < 0)) {
                PyErr_SetString(PyExc_OverflowError,
                                "can't convert negative value to unsigned long");
                return (unsigned long)-1;
            }
            return PyLong_AsUnsignedLong(x);
        } else {
            return PyLong_AsLong(x);
        }
    } else {
        unsigned long val;
        PyObject *tmp = __Pyx_PyNumber_Int(x);
        if (!tmp) return (unsigned long)-1;
        val = __Pyx_PyInt_AsUnsignedLong(tmp);
        Py_DECREF(tmp);
        return val;
    }
}

static CYTHON_INLINE unsigned PY_LONG_LONG __Pyx_PyInt_AsUnsignedLongLong(PyObject* x) {
    const unsigned PY_LONG_LONG neg_one = (unsigned PY_LONG_LONG)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
#if PY_VERSION_HEX < 0x03000000
    if (likely(PyInt_Check(x))) {
        long val = PyInt_AS_LONG(x);
        if (is_unsigned && unlikely(val < 0)) {
            PyErr_SetString(PyExc_OverflowError,
                            "can't convert negative value to unsigned PY_LONG_LONG");
            return (unsigned PY_LONG_LONG)-1;
        }
        return (unsigned PY_LONG_LONG)val;
    } else
#endif
    if (likely(PyLong_Check(x))) {
        if (is_unsigned) {
            if (unlikely(Py_SIZE(x) < 0)) {
                PyErr_SetString(PyExc_OverflowError,
                                "can't convert negative value to unsigned PY_LONG_LONG");
                return (unsigned PY_LONG_LONG)-1;
            }
            return PyLong_AsUnsignedLongLong(x);
        } else {
            return PyLong_AsLongLong(x);
        }
    } else {
        unsigned PY_LONG_LONG val;
        PyObject *tmp = __Pyx_PyNumber_Int(x);
        if (!tmp) return (unsigned PY_LONG_LONG)-1;
        val = __Pyx_PyInt_AsUnsignedLongLong(tmp);
        Py_DECREF(tmp);
        return val;
    }
}

static CYTHON_INLINE long __Pyx_PyInt_AsLong(PyObject* x) {
    const long neg_one = (long)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
#if PY_VERSION_HEX < 0x03000000
    if (likely(PyInt_Check(x))) {
        long val = PyInt_AS_LONG(x);
        if (is_unsigned && unlikely(val < 0)) {
            PyErr_SetString(PyExc_OverflowError,
                            "can't convert negative value to long");
            return (long)-1;
        }
        return (long)val;
    } else
#endif
    if (likely(PyLong_Check(x))) {
        if (is_unsigned) {
            if (unlikely(Py_SIZE(x) < 0)) {
                PyErr_SetString(PyExc_OverflowError,
                                "can't convert negative value to long");
                return (long)-1;
            }
            return PyLong_AsUnsignedLong(x);
        } else {
            return PyLong_AsLong(x);
        }
    } else {
        long val;
        PyObject *tmp = __Pyx_PyNumber_Int(x);
        if (!tmp) return (long)-1;
        val = __Pyx_PyInt_AsLong(tmp);
        Py_DECREF(tmp);
        return val;
    }
}

static CYTHON_INLINE PY_LONG_LONG __Pyx_PyInt_AsLongLong(PyObject* x) {
    const PY_LONG_LONG neg_one = (PY_LONG_LONG)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
#if PY_VERSION_HEX < 0x03000000
    if (likely(PyInt_Check(x))) {
        long val = PyInt_AS_LONG(x);
        if (is_unsigned && unlikely(val < 0)) {
            PyErr_SetString(PyExc_OverflowError,
                            "can't convert negative value to PY_LONG_LONG");
            return (PY_LONG_LONG)-1;
        }
        return (PY_LONG_LONG)val;
    } else
#endif
    if (likely(PyLong_Check(x))) {
        if (is_unsigned) {
            if (unlikely(Py_SIZE(x) < 0)) {
                PyErr_SetString(PyExc_OverflowError,
                                "can't convert negative value to PY_LONG_LONG");
                return (PY_LONG_LONG)-1;
            }
            return PyLong_AsUnsignedLongLong(x);
        } else {
            return PyLong_AsLongLong(x);
        }
    } else {
        PY_LONG_LONG val;
        PyObject *tmp = __Pyx_PyNumber_Int(x);
        if (!tmp) return (PY_LONG_LONG)-1;
        val = __Pyx_PyInt_AsLongLong(tmp);
        Py_DECREF(tmp);
        return val;
    }
}

static CYTHON_INLINE signed long __Pyx_PyInt_AsSignedLong(PyObject* x) {
    const signed long neg_one = (signed long)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
#if PY_VERSION_HEX < 0x03000000
    if (likely(PyInt_Check(x))) {
        long val = PyInt_AS_LONG(x);
        if (is_unsigned && unlikely(val < 0)) {
            PyErr_SetString(PyExc_OverflowError,
                            "can't convert negative value to signed long");
            return (signed long)-1;
        }
        return (signed long)val;
    } else
#endif
    if (likely(PyLong_Check(x))) {
        if (is_unsigned) {
            if (unlikely(Py_SIZE(x) < 0)) {
                PyErr_SetString(PyExc_OverflowError,
                                "can't convert negative value to signed long");
                return (signed long)-1;
            }
            return PyLong_AsUnsignedLong(x);
        } else {
            return PyLong_AsLong(x);
        }
    } else {
        signed long val;
        PyObject *tmp = __Pyx_PyNumber_Int(x);
        if (!tmp) return (signed long)-1;
        val = __Pyx_PyInt_AsSignedLong(tmp);
        Py_DECREF(tmp);
        return val;
    }
}

static CYTHON_INLINE signed PY_LONG_LONG __Pyx_PyInt_AsSignedLongLong(PyObject* x) {
    const signed PY_LONG_LONG neg_one = (signed PY_LONG_LONG)-1, const_zero = 0;
    const int is_unsigned = neg_one > const_zero;
#if PY_VERSION_HEX < 0x03000000
    if (likely(PyInt_Check(x))) {
        long val = PyInt_AS_LONG(x);
        if (is_unsigned && unlikely(val < 0)) {
            PyErr_SetString(PyExc_OverflowError,
                            "can't convert negative value to signed PY_LONG_LONG");
            return (signed PY_LONG_LONG)-1;
        }
        return (signed PY_LONG_LONG)val;
    } else
#endif
    if (likely(PyLong_Check(x))) {
        if (is_unsigned) {
            if (unlikely(Py_SIZE(x) < 0)) {
                PyErr_SetString(PyExc_OverflowError,
                                "can't convert negative value to signed PY_LONG_LONG");
                return (signed PY_LONG_LONG)-1;
            }
            return PyLong_AsUnsignedLongLong(x);
        } else {
            return PyLong_AsLongLong(x);
        }
    } else {
        signed PY_LONG_LONG val;
        PyObject *tmp = __Pyx_PyNumber_Int(x);
        if (!tmp) return (signed PY_LONG_LONG)-1;
        val = __Pyx_PyInt_AsSignedLongLong(tmp);
        Py_DECREF(tmp);
        return val;
    }
}

static void __Pyx_WriteUnraisable(const char *name) {
    PyObject *old_exc, *old_val, *old_tb;
    PyObject *ctx;
    __Pyx_ErrFetch(&old_exc, &old_val, &old_tb);
    #if PY_MAJOR_VERSION < 3
    ctx = PyString_FromString(name);
    #else
    ctx = PyUnicode_FromString(name);
    #endif
    __Pyx_ErrRestore(old_exc, old_val, old_tb);
    if (!ctx) {
        PyErr_WriteUnraisable(Py_None);
    } else {
        PyErr_WriteUnraisable(ctx);
        Py_DECREF(ctx);
    }
}

static int __Pyx_SetVtable(PyObject *dict, void *vtable) {
#if PY_VERSION_HEX >= 0x02070000 && !(PY_MAJOR_VERSION==3&&PY_MINOR_VERSION==0)
    PyObject *ob = PyCapsule_New(vtable, 0, 0);
#else
    PyObject *ob = PyCObject_FromVoidPtr(vtable, 0);
#endif
    if (!ob)
        goto bad;
    if (PyDict_SetItemString(dict, "__pyx_vtable__", ob) < 0)
        goto bad;
    Py_DECREF(ob);
    return 0;
bad:
    Py_XDECREF(ob);
    return -1;
}

#ifndef __PYX_HAVE_RT_ImportType
#define __PYX_HAVE_RT_ImportType
static PyTypeObject *__Pyx_ImportType(const char *module_name, const char *class_name,
    long size, int strict)
{
    PyObject *py_module = 0;
    PyObject *result = 0;
    PyObject *py_name = 0;
    char warning[200];

    py_module = __Pyx_ImportModule(module_name);
    if (!py_module)
        goto bad;
    #if PY_MAJOR_VERSION < 3
    py_name = PyString_FromString(class_name);
    #else
    py_name = PyUnicode_FromString(class_name);
    #endif
    if (!py_name)
        goto bad;
    result = PyObject_GetAttr(py_module, py_name);
    Py_DECREF(py_name);
    py_name = 0;
    Py_DECREF(py_module);
    py_module = 0;
    if (!result)
        goto bad;
    if (!PyType_Check(result)) {
        PyErr_Format(PyExc_TypeError,
            "%s.%s is not a type object",
            module_name, class_name);
        goto bad;
    }
    if (!strict && ((PyTypeObject *)result)->tp_basicsize > size) {
        PyOS_snprintf(warning, sizeof(warning),
            "%s.%s size changed, may indicate binary incompatibility",
            module_name, class_name);
        #if PY_VERSION_HEX < 0x02050000
        PyErr_Warn(NULL, warning);
        #else
        PyErr_WarnEx(NULL, warning, 0);
        #endif
    }
    else if (((PyTypeObject *)result)->tp_basicsize != size) {
        PyErr_Format(PyExc_ValueError,
            "%s.%s has the wrong size, try recompiling",
            module_name, class_name);
        goto bad;
    }
    return (PyTypeObject *)result;
bad:
    Py_XDECREF(py_module);
    Py_XDECREF(result);
    return 0;
}
#endif

#ifndef __PYX_HAVE_RT_ImportModule
#define __PYX_HAVE_RT_ImportModule
static PyObject *__Pyx_ImportModule(const char *name) {
    PyObject *py_name = 0;
    PyObject *py_module = 0;

    #if PY_MAJOR_VERSION < 3
    py_name = PyString_FromString(name);
    #else
    py_name = PyUnicode_FromString(name);
    #endif
    if (!py_name)
        goto bad;
    py_module = PyImport_Import(py_name);
    Py_DECREF(py_name);
    return py_module;
bad:
    Py_XDECREF(py_name);
    return 0;
}
#endif

static int __Pyx_GetVtable(PyObject *dict, void *vtabptr) {
    PyObject *ob = PyMapping_GetItemString(dict, (char *)"__pyx_vtable__");
    if (!ob)
        goto bad;
#if PY_VERSION_HEX >= 0x02070000 && !(PY_MAJOR_VERSION==3&&PY_MINOR_VERSION==0)
    *(void **)vtabptr = PyCapsule_GetPointer(ob, 0);
#else
    *(void **)vtabptr = PyCObject_AsVoidPtr(ob);
#endif
    if (!*(void **)vtabptr)
        goto bad;
    Py_DECREF(ob);
    return 0;
bad:
    Py_XDECREF(ob);
    return -1;
}

#ifndef __PYX_HAVE_RT_ImportFunction
#define __PYX_HAVE_RT_ImportFunction
static int __Pyx_ImportFunction(PyObject *module, const char *funcname, void (**f)(void), const char *sig) {
    PyObject *d = 0;
    PyObject *cobj = 0;
    union {
        void (*fp)(void);
        void *p;
    } tmp;

    d = PyObject_GetAttrString(module, (char *)"__pyx_capi__");
    if (!d)
        goto bad;
    cobj = PyDict_GetItemString(d, funcname);
    if (!cobj) {
        PyErr_Format(PyExc_ImportError,
            "%s does not export expected C function %s",
                PyModule_GetName(module), funcname);
        goto bad;
    }
#if PY_VERSION_HEX >= 0x02070000 && !(PY_MAJOR_VERSION==3&&PY_MINOR_VERSION==0)
    if (!PyCapsule_IsValid(cobj, sig)) {
        PyErr_Format(PyExc_TypeError,
            "C function %s.%s has wrong signature (expected %s, got %s)",
             PyModule_GetName(module), funcname, sig, PyCapsule_GetName(cobj));
        goto bad;
    }
    tmp.p = PyCapsule_GetPointer(cobj, sig);
#else
    {const char *desc, *s1, *s2;
    desc = (const char *)PyCObject_GetDesc(cobj);
    if (!desc)
        goto bad;
    s1 = desc; s2 = sig;
    while (*s1 != '\0' && *s1 == *s2) { s1++; s2++; }
    if (*s1 != *s2) {
        PyErr_Format(PyExc_TypeError,
            "C function %s.%s has wrong signature (expected %s, got %s)",
             PyModule_GetName(module), funcname, sig, desc);
        goto bad;
    }
    tmp.p = PyCObject_AsVoidPtr(cobj);}
#endif
    *f = tmp.fp;
    if (!(*f))
        goto bad;
    Py_DECREF(d);
    return 0;
bad:
    Py_XDECREF(d);
    return -1;
}
#endif

#include "compile.h"
#include "frameobject.h"
#include "traceback.h"

static void __Pyx_AddTraceback(const char *funcname) {
    PyObject *py_srcfile = 0;
    PyObject *py_funcname = 0;
    PyObject *py_globals = 0;
    PyCodeObject *py_code = 0;
    PyFrameObject *py_frame = 0;

    #if PY_MAJOR_VERSION < 3
    py_srcfile = PyString_FromString(__pyx_filename);
    #else
    py_srcfile = PyUnicode_FromString(__pyx_filename);
    #endif
    if (!py_srcfile) goto bad;
    if (__pyx_clineno) {
        #if PY_MAJOR_VERSION < 3
        py_funcname = PyString_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, __pyx_clineno);
        #else
        py_funcname = PyUnicode_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, __pyx_clineno);
        #endif
    }
    else {
        #if PY_MAJOR_VERSION < 3
        py_funcname = PyString_FromString(funcname);
        #else
        py_funcname = PyUnicode_FromString(funcname);
        #endif
    }
    if (!py_funcname) goto bad;
    py_globals = PyModule_GetDict(__pyx_m);
    if (!py_globals) goto bad;
    py_code = PyCode_New(
        0,            /*int argcount,*/
        #if PY_MAJOR_VERSION >= 3
        0,            /*int kwonlyargcount,*/
        #endif
        0,            /*int nlocals,*/
        0,            /*int stacksize,*/
        0,            /*int flags,*/
        __pyx_empty_bytes, /*PyObject *code,*/
        __pyx_empty_tuple,  /*PyObject *consts,*/
        __pyx_empty_tuple,  /*PyObject *names,*/
        __pyx_empty_tuple,  /*PyObject *varnames,*/
        __pyx_empty_tuple,  /*PyObject *freevars,*/
        __pyx_empty_tuple,  /*PyObject *cellvars,*/
        py_srcfile,   /*PyObject *filename,*/
        py_funcname,  /*PyObject *name,*/
        __pyx_lineno,   /*int firstlineno,*/
        __pyx_empty_bytes  /*PyObject *lnotab*/
    );
    if (!py_code) goto bad;
    py_frame = PyFrame_New(
        PyThreadState_GET(), /*PyThreadState *tstate,*/
        py_code,             /*PyCodeObject *code,*/
        py_globals,          /*PyObject *globals,*/
        0                    /*PyObject *locals*/
    );
    if (!py_frame) goto bad;
    py_frame->f_lineno = __pyx_lineno;
    PyTraceBack_Here(py_frame);
bad:
    Py_XDECREF(py_srcfile);
    Py_XDECREF(py_funcname);
    Py_XDECREF(py_code);
    Py_XDECREF(py_frame);
}

static int __Pyx_InitStrings(__Pyx_StringTabEntry *t) {
    while (t->p) {
        #if PY_MAJOR_VERSION < 3
        if (t->is_unicode) {
            *t->p = PyUnicode_DecodeUTF8(t->s, t->n - 1, NULL);
        } else if (t->intern) {
            *t->p = PyString_InternFromString(t->s);
        } else {
            *t->p = PyString_FromStringAndSize(t->s, t->n - 1);
        }
        #else  /* Python 3+ has unicode identifiers */
        if (t->is_unicode | t->is_str) {
            if (t->intern) {
                *t->p = PyUnicode_InternFromString(t->s);
            } else if (t->encoding) {
                *t->p = PyUnicode_Decode(t->s, t->n - 1, t->encoding, NULL);
            } else {
                *t->p = PyUnicode_FromStringAndSize(t->s, t->n - 1);
            }
        } else {
            *t->p = PyBytes_FromStringAndSize(t->s, t->n - 1);
        }
        #endif
        if (!*t->p)
            return -1;
        ++t;
    }
    return 0;
}

/* Type Conversion Functions */

static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject* x) {
   int is_true = x == Py_True;
   if (is_true | (x == Py_False) | (x == Py_None)) return is_true;
   else return PyObject_IsTrue(x);
}

static CYTHON_INLINE PyObject* __Pyx_PyNumber_Int(PyObject* x) {
  PyNumberMethods *m;
  const char *name = NULL;
  PyObject *res = NULL;
#if PY_VERSION_HEX < 0x03000000
  if (PyInt_Check(x) || PyLong_Check(x))
#else
  if (PyLong_Check(x))
#endif
    return Py_INCREF(x), x;
  m = Py_TYPE(x)->tp_as_number;
#if PY_VERSION_HEX < 0x03000000
  if (m && m->nb_int) {
    name = "int";
    res = PyNumber_Int(x);
  }
  else if (m && m->nb_long) {
    name = "long";
    res = PyNumber_Long(x);
  }
#else
  if (m && m->nb_int) {
    name = "int";
    res = PyNumber_Long(x);
  }
#endif
  if (res) {
#if PY_VERSION_HEX < 0x03000000
    if (!PyInt_Check(res) && !PyLong_Check(res)) {
#else
    if (!PyLong_Check(res)) {
#endif
      PyErr_Format(PyExc_TypeError,
                   "__%s__ returned non-%s (type %.200s)",
                   name, name, Py_TYPE(res)->tp_name);
      Py_DECREF(res);
      return NULL;
    }
  }
  else if (!PyErr_Occurred()) {
    PyErr_SetString(PyExc_TypeError,
                    "an integer is required");
  }
  return res;
}

static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject* b) {
  Py_ssize_t ival;
  PyObject* x = PyNumber_Index(b);
  if (!x) return -1;
  ival = PyInt_AsSsize_t(x);
  Py_DECREF(x);
  return ival;
}

static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t ival) {
#if PY_VERSION_HEX < 0x02050000
   if (ival <= LONG_MAX)
       return PyInt_FromLong((long)ival);
   else {
       unsigned char *bytes = (unsigned char *) &ival;
       int one = 1; int little = (int)*(unsigned char*)&one;
       return _PyLong_FromByteArray(bytes, sizeof(size_t), little, 0);
   }
#else
   return PyInt_FromSize_t(ival);
#endif
}

static CYTHON_INLINE size_t __Pyx_PyInt_AsSize_t(PyObject* x) {
   unsigned PY_LONG_LONG val = __Pyx_PyInt_AsUnsignedLongLong(x);
   if (unlikely(val == (unsigned PY_LONG_LONG)-1 && PyErr_Occurred())) {
       return (size_t)-1;
   } else if (unlikely(val != (unsigned PY_LONG_LONG)(size_t)val)) {
       PyErr_SetString(PyExc_OverflowError,
                       "value too large to convert to size_t");
       return (size_t)-1;
   }
   return (size_t)val;
}


#endif /* Py_PYTHON_H */
