diff options
Diffstat (limited to 'source/blender/python/gpu/gpu_py_types.c')
| -rw-r--r-- | source/blender/python/gpu/gpu_py_types.c | 845 |
1 files changed, 845 insertions, 0 deletions
diff --git a/source/blender/python/gpu/gpu_py_types.c b/source/blender/python/gpu/gpu_py_types.c new file mode 100644 index 00000000000..4e564fdf849 --- /dev/null +++ b/source/blender/python/gpu/gpu_py_types.c @@ -0,0 +1,845 @@ +/* + * ***** 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. + * + * ***** END GPL LICENSE BLOCK ***** + */ + +/** \file blender/python/gpu/gpu_py_types.c + * \ingroup pygpu + * + * - Use ``bpygpu_`` for local API. + * - Use ``BPyGPU`` for public API. + */ + +#include <Python.h> + +#include "GPU_batch.h" +#include "GPU_vertex_format.h" + +#include "BLI_math.h" + +#include "MEM_guardedalloc.h" + +#include "../generic/py_capi_utils.h" +#include "../generic/python_utildefines.h" + +#include "gpu_py_types.h" /* own include */ + +#ifdef __BIG_ENDIAN__ + /* big endian */ +# define MAKE_ID2(c, d) ((c) << 8 | (d)) +# define MAKE_ID3(a, b, c) ( (int)(a) << 24 | (int)(b) << 16 | (c) << 8 ) +# define MAKE_ID4(a, b, c, d) ( (int)(a) << 24 | (int)(b) << 16 | (c) << 8 | (d) ) +#else + /* little endian */ +# define MAKE_ID2(c, d) ((d) << 8 | (c)) +# define MAKE_ID3(a, b, c) ( (int)(c) << 16 | (b) << 8 | (a) ) +# define MAKE_ID4(a, b, c, d) ( (int)(d) << 24 | (int)(c) << 16 | (b) << 8 | (a) ) +#endif + +/* -------------------------------------------------------------------- */ + +/** \name Enum Conversion + * + * Use with PyArg_ParseTuple's "O&" formatting. + * \{ */ + +static int bpygpu_ParseVertCompType(PyObject *o, void *p) +{ + Py_ssize_t comp_type_id_len; + const char *comp_type_id = _PyUnicode_AsStringAndSize(o, &comp_type_id_len); + if (comp_type_id == NULL) { + PyErr_Format(PyExc_ValueError, + "expected a string, got %s", + Py_TYPE(o)->tp_name); + return 0; + } + + GPUVertCompType comp_type; + if (comp_type_id_len == 2) { + switch (*((ushort *)comp_type_id)) { + case MAKE_ID2('I', '8'): { comp_type = GPU_COMP_I8; goto success; } + case MAKE_ID2('U', '8'): { comp_type = GPU_COMP_U8; goto success; } + } + } + else if (comp_type_id_len == 3) { + switch (*((uint *)comp_type_id)) { + case MAKE_ID3('I', '1', '6'): { comp_type = GPU_COMP_I16; goto success; } + case MAKE_ID3('U', '1', '6'): { comp_type = GPU_COMP_U16; goto success; } + case MAKE_ID3('I', '3', '2'): { comp_type = GPU_COMP_I32; goto success; } + case MAKE_ID3('U', '3', '2'): { comp_type = GPU_COMP_U32; goto success; } + case MAKE_ID3('F', '3', '2'): { comp_type = GPU_COMP_F32; goto success; } + case MAKE_ID3('I', '1', '0'): { comp_type = GPU_COMP_I10; goto success; } + } + } + + PyErr_Format(PyExc_ValueError, + "unknown type literal: '%s'", + comp_type_id); + return 0; + +success: + *((GPUVertCompType *)p) = comp_type; + return 1; +} + +static int bpygpu_ParseVertFetchMode(PyObject *o, void *p) +{ + Py_ssize_t mode_id_len; + const char *mode_id = _PyUnicode_AsStringAndSize(o, &mode_id_len); + if (mode_id == NULL) { + PyErr_Format(PyExc_ValueError, + "expected a string, got %s", + Py_TYPE(o)->tp_name); + return 0; + } +#define MATCH_ID(id) \ + if (mode_id_len == strlen(STRINGIFY(id))) { \ + if (STREQ(mode_id, STRINGIFY(id))) { \ + mode = GPU_FETCH_##id; \ + goto success; \ + } \ + } ((void)0) + + GPUVertFetchMode mode; + MATCH_ID(FLOAT); + MATCH_ID(INT); + MATCH_ID(INT_TO_FLOAT_UNIT); + MATCH_ID(INT_TO_FLOAT); +#undef MATCH_ID + PyErr_Format(PyExc_ValueError, + "unknown type literal: '%s'", + mode_id); + return 0; + +success: + (*(GPUVertFetchMode *)p) = mode; + return 1; +} + +static int bpygpu_ParsePrimType(PyObject *o, void *p) +{ + Py_ssize_t mode_id_len; + const char *mode_id = _PyUnicode_AsStringAndSize(o, &mode_id_len); + if (mode_id == NULL) { + PyErr_Format(PyExc_ValueError, + "expected a string, got %s", + Py_TYPE(o)->tp_name); + return 0; + } +#define MATCH_ID(id) \ + if (mode_id_len == strlen(STRINGIFY(id))) { \ + if (STREQ(mode_id, STRINGIFY(id))) { \ + mode = GPU_PRIM_##id; \ + goto success; \ + } \ + } ((void)0) + + GPUPrimType mode; + MATCH_ID(POINTS); + MATCH_ID(LINES); + MATCH_ID(TRIS); + MATCH_ID(LINE_STRIP); + MATCH_ID(LINE_LOOP); + MATCH_ID(TRI_STRIP); + MATCH_ID(TRI_FAN); + MATCH_ID(LINE_STRIP_ADJ); + +#undef MATCH_ID + PyErr_Format(PyExc_ValueError, + "unknown type literal: '%s'", + mode_id); + return 0; + +success: + (*(GPUPrimType *)p) = mode; + return 1; +} + +/** \} */ + + +/* -------------------------------------------------------------------- */ + +/** \name Utility Functions + * \{ */ + +#define PY_AS_NATIVE_SWITCH(attr) \ + switch (attr->comp_type) { \ + case GPU_COMP_I8: { PY_AS_NATIVE(int8_t, PyC_Long_AsI8); break; } \ + case GPU_COMP_U8: { PY_AS_NATIVE(uint8_t, PyC_Long_AsU8); break; } \ + case GPU_COMP_I16: { PY_AS_NATIVE(int16_t, PyC_Long_AsI16); break; } \ + case GPU_COMP_U16: { PY_AS_NATIVE(uint16_t, PyC_Long_AsU16); break; } \ + case GPU_COMP_I32: { PY_AS_NATIVE(int32_t, PyC_Long_AsI32); break; } \ + case GPU_COMP_U32: { PY_AS_NATIVE(uint32_t, PyC_Long_AsU32); break; } \ + case GPU_COMP_F32: { PY_AS_NATIVE(float, PyFloat_AsDouble); break; } \ + default: \ + BLI_assert(0); \ + } ((void)0) + +/* No error checking, callers must run PyErr_Occurred */ +static void fill_format_elem(void *data_dst_void, PyObject *py_src, const GPUVertAttr *attr) +{ +#define PY_AS_NATIVE(ty_dst, py_as_native) \ +{ \ + ty_dst *data_dst = data_dst_void; \ + *data_dst = py_as_native(py_src); \ +} ((void)0) + + PY_AS_NATIVE_SWITCH(attr); + +#undef PY_AS_NATIVE +} + +/* No error checking, callers must run PyErr_Occurred */ +static void fill_format_tuple(void *data_dst_void, PyObject *py_src, const GPUVertAttr *attr) +{ + const uint len = attr->comp_len; + +/** + * Args are constants, so range checks will be optimized out if they're nop's. + */ +#define PY_AS_NATIVE(ty_dst, py_as_native) \ + ty_dst *data_dst = data_dst_void; \ + for (uint i = 0; i < len; i++) { \ + data_dst[i] = py_as_native(PyTuple_GET_ITEM(py_src, i)); \ + } ((void)0) + + PY_AS_NATIVE_SWITCH(attr); + +#undef PY_AS_NATIVE +} + +#undef PY_AS_NATIVE_SWITCH +#undef WARN_TYPE_LIMIT_PUSH +#undef WARN_TYPE_LIMIT_POP + +static bool bpygpu_vertbuf_fill_impl( + GPUVertBuf *vbo, + uint data_id, PyObject *seq) +{ + bool ok = true; + const GPUVertAttr *attr = &vbo->format.attribs[data_id]; + + GPUVertBufRaw data_step; + GPU_vertbuf_attr_get_raw_data(vbo, data_id, &data_step); + + PyObject *seq_fast = PySequence_Fast(seq, "Vertex buffer fill"); + if (seq_fast == NULL) { + goto finally; + } + + const uint seq_len = PySequence_Fast_GET_SIZE(seq_fast); + + if (seq_len != vbo->vertex_len) { + PyErr_Format(PyExc_ValueError, + "Expected a sequence of size %d, got %d", + vbo->vertex_len, seq_len); + } + + PyObject **seq_items = PySequence_Fast_ITEMS(seq_fast); + + if (attr->comp_len == 1) { + for (uint i = 0; i < seq_len; i++) { + uchar *data = (uchar *)GPU_vertbuf_raw_step(&data_step); + PyObject *item = seq_items[i]; + fill_format_elem(data, item, attr); + } + } + else { + for (uint i = 0; i < seq_len; i++) { + uchar *data = (uchar *)GPU_vertbuf_raw_step(&data_step); + PyObject *item = seq_items[i]; + if (!PyTuple_CheckExact(item)) { + PyErr_Format(PyExc_ValueError, + "expected a tuple, got %s", + Py_TYPE(item)->tp_name); + ok = false; + goto finally; + } + if (PyTuple_GET_SIZE(item) != attr->comp_len) { + PyErr_Format(PyExc_ValueError, + "expected a tuple of size %d, got %d", + attr->comp_len, PyTuple_GET_SIZE(item)); + ok = false; + goto finally; + } + + /* May trigger error, check below */ + fill_format_tuple(data, item, attr); + } + } + + if (PyErr_Occurred()) { + ok = false; + } + +finally: + + Py_DECREF(seq_fast); + return ok; +} + +/* handy, but not used just now */ +#if 0 +static int bpygpu_find_id(const GPUVertFormat *fmt, const char *id) +{ + for (int i = 0; i < fmt->attr_len; i++) { + for (uint j = 0; j < fmt->name_len; j++) { + if (STREQ(fmt->attribs[i].name[j], id)) { + return i; + } + } + } + return -1; +} +#endif + +/** \} */ + + +/* -------------------------------------------------------------------- */ + +/** \name VertFormat Type + * \{ */ + +static PyObject *bpygpu_VertFormat_new(PyTypeObject *UNUSED(type), PyObject *args, PyObject *kwds) +{ + if (PyTuple_GET_SIZE(args) || (kwds && PyDict_Size(kwds))) { + PyErr_SetString(PyExc_TypeError, + "VertFormat(): takes no arguments"); + return NULL; + } + + BPyGPUVertFormat *ret = (BPyGPUVertFormat *)BPyGPUVertFormat_CreatePyObject(NULL); + + return (PyObject *)ret; +} + +PyDoc_STRVAR(bpygpu_VertFormat_attr_add_doc, +"TODO" +); +static PyObject *bpygpu_VertFormat_attr_add(BPyGPUVertFormat *self, PyObject *args, PyObject *kwds) +{ + static const char *kwlist[] = {"id", "comp_type", "len", "fetch_mode", NULL}; + + struct { + const char *id; + GPUVertCompType comp_type; + uint len; + GPUVertFetchMode fetch_mode; + } params; + + if (self->fmt.attr_len == GPU_VERT_ATTR_MAX_LEN) { + PyErr_SetString(PyExc_ValueError, "Maxumum attr reached " STRINGIFY(GPU_VERT_ATTR_MAX_LEN)); + return NULL; + } + + if (!PyArg_ParseTupleAndKeywords( + args, kwds, "$sO&IO&:attr_add", (char **)kwlist, + ¶ms.id, + bpygpu_ParseVertCompType, ¶ms.comp_type, + ¶ms.len, + bpygpu_ParseVertFetchMode, ¶ms.fetch_mode)) + { + return NULL; + } + + uint attr_id = GPU_vertformat_attr_add(&self->fmt, params.id, params.comp_type, params.len, params.fetch_mode); + return PyLong_FromLong(attr_id); +} + +static struct PyMethodDef bpygpu_VertFormat_methods[] = { + {"attr_add", (PyCFunction)bpygpu_VertFormat_attr_add, + METH_VARARGS | METH_KEYWORDS, bpygpu_VertFormat_attr_add_doc}, + {NULL, NULL, 0, NULL} +}; + + +static void bpygpu_VertFormat_dealloc(BPyGPUVertFormat *self) +{ + Py_TYPE(self)->tp_free(self); +} + +PyTypeObject BPyGPUVertFormat_Type = { + PyVarObject_HEAD_INIT(NULL, 0) + .tp_name = "GPUVertFormat", + .tp_basicsize = sizeof(BPyGPUVertFormat), + .tp_dealloc = (destructor)bpygpu_VertFormat_dealloc, + .tp_flags = Py_TPFLAGS_DEFAULT, + .tp_methods = bpygpu_VertFormat_methods, + .tp_new = bpygpu_VertFormat_new, +}; + +/** \} */ + + +/* -------------------------------------------------------------------- */ + +/** \name VertBuf Type + * \{ */ + +static PyObject *bpygpu_VertBuf_new(PyTypeObject *UNUSED(type), PyObject *args, PyObject *kwds) +{ + const char * const keywords[] = {"len", "format", NULL}; + + struct { + BPyGPUVertFormat *py_fmt; + uint len; + } params; + + if (!PyArg_ParseTupleAndKeywords( + args, kwds, + "$IO!:GPUVertBuf.__new__", (char **)keywords, + ¶ms.len, + &BPyGPUVertFormat_Type, ¶ms.py_fmt)) + { + return NULL; + } + + struct GPUVertBuf *vbo = GPU_vertbuf_create_with_format(¶ms.py_fmt->fmt); + + GPU_vertbuf_data_alloc(vbo, params.len); + + return BPyGPUVertBuf_CreatePyObject(vbo); +} + +PyDoc_STRVAR(bpygpu_VertBuf_fill_doc, +"TODO" +); +static PyObject *bpygpu_VertBuf_fill(BPyGPUVertBuf *self, PyObject *args, PyObject *kwds) +{ + static const char *kwlist[] = {"id", "data", NULL}; + + struct { + uint id; + PyObject *py_seq_data; + } params; + + if (!PyArg_ParseTupleAndKeywords( + args, kwds, "$IO:fill", (char **)kwlist, + ¶ms.id, + ¶ms.py_seq_data)) + { + return NULL; + } + + if (params.id >= self->buf->format.attr_len) { + PyErr_Format(PyExc_ValueError, + "Format id %d out of range", + params.id); + return NULL; + } + + if (self->buf->data == NULL) { + PyErr_SetString(PyExc_ValueError, + "Can't fill, static buffer already in use"); + return NULL; + } + + if (!bpygpu_vertbuf_fill_impl(self->buf, params.id, params.py_seq_data)) { + return NULL; + } + Py_RETURN_NONE; +} + +static struct PyMethodDef bpygpu_VertBuf_methods[] = { + {"fill", (PyCFunction) bpygpu_VertBuf_fill, + METH_VARARGS | METH_KEYWORDS, bpygpu_VertBuf_fill_doc}, + {NULL, NULL, 0, NULL} +}; + +static void bpygpu_VertBuf_dealloc(BPyGPUVertBuf *self) +{ + GPU_vertbuf_discard(self->buf); + Py_TYPE(self)->tp_free(self); +} + +PyTypeObject BPyGPUVertBuf_Type = { + PyVarObject_HEAD_INIT(NULL, 0) + .tp_name = "GPUVertBuf", + .tp_basicsize = sizeof(BPyGPUVertBuf), + .tp_dealloc = (destructor)bpygpu_VertBuf_dealloc, + .tp_flags = Py_TPFLAGS_DEFAULT, + .tp_methods = bpygpu_VertBuf_methods, + .tp_new = bpygpu_VertBuf_new, +}; + +/** \} */ + + +/* -------------------------------------------------------------------- */ + +/** \name VertBatch Type + * \{ */ + +static PyObject *bpygpu_Batch_new(PyTypeObject *UNUSED(type), PyObject *args, PyObject *kwds) +{ + const char * const keywords[] = {"type", "buf", NULL}; + + struct { + GPUPrimType type_id; + BPyGPUVertBuf *py_buf; + } params; + + if (!PyArg_ParseTupleAndKeywords( + args, kwds, + "$O&O!:GPUBatch.__new__", (char **)keywords, + bpygpu_ParsePrimType, ¶ms.type_id, + &BPyGPUVertBuf_Type, ¶ms.py_buf)) + { + return NULL; + } + + GPUBatch *batch = GPU_batch_create(params.type_id, params.py_buf->buf, NULL); + BPyGPUBatch *ret = (BPyGPUBatch *)BPyGPUBatch_CreatePyObject(batch); + +#ifdef USE_GPU_PY_REFERENCES + ret->references = PyList_New(1); + PyList_SET_ITEM(ret->references, 0, (PyObject *)params.py_buf); + Py_INCREF(params.py_buf); + PyObject_GC_Track(ret); +#endif + + return (PyObject *)ret; +} + +PyDoc_STRVAR(bpygpu_VertBatch_vertbuf_add_doc, +"TODO" +); +static PyObject *bpygpu_VertBatch_vertbuf_add(BPyGPUBatch *self, BPyGPUVertBuf *py_buf) +{ + if (!BPyGPUVertBuf_Check(py_buf)) { + PyErr_Format(PyExc_TypeError, + "Expected a GPUVertBuf, got %s", + Py_TYPE(py_buf)->tp_name); + return NULL; + } + + if (self->batch->verts[0]->vertex_len != py_buf->buf->vertex_len) { + PyErr_Format(PyExc_TypeError, + "Expected %d length, got %d", + self->batch->verts[0]->vertex_len, py_buf->buf->vertex_len); + return NULL; + } + +#ifdef USE_GPU_PY_REFERENCES + /* Hold user */ + PyList_Append(self->references, (PyObject *)py_buf); +#endif + + GPU_batch_vertbuf_add(self->batch, py_buf->buf); + Py_RETURN_NONE; +} + +/* Currently magic number from Py perspective. */ +PyDoc_STRVAR(bpygpu_VertBatch_program_set_builtin_doc, +"TODO" +); +static PyObject *bpygpu_VertBatch_program_set_builtin(BPyGPUBatch *self, PyObject *args, PyObject *kwds) +{ + static const char *kwlist[] = {"id", NULL}; + + struct { + const char *shader; + } params; + + if (!PyArg_ParseTupleAndKeywords( + args, kwds, "s:program_set_builtin", (char **)kwlist, + ¶ms.shader)) + { + return NULL; + } + + GPUBuiltinShader shader; + +#define MATCH_ID(id) \ + if (STREQ(params.shader, STRINGIFY(id))) { \ + shader = GPU_SHADER_##id; \ + goto success; \ + } ((void)0) + + MATCH_ID(2D_FLAT_COLOR); + MATCH_ID(2D_SMOOTH_COLOR); + MATCH_ID(2D_UNIFORM_COLOR); + + MATCH_ID(3D_FLAT_COLOR); + MATCH_ID(3D_SMOOTH_COLOR); + MATCH_ID(3D_UNIFORM_COLOR); + +#undef MATCH_ID + + PyErr_SetString(PyExc_ValueError, + "shader name not known"); + return NULL; + +success: + GPU_batch_program_set_builtin(self->batch, shader); + Py_RETURN_NONE; +} + +static PyObject *bpygpu_VertBatch_uniform_bool(BPyGPUBatch *self, PyObject *args) +{ + struct { + const char *id; + bool values[1]; + } params; + + if (!PyArg_ParseTuple( + args, "sO&:uniform_bool", + ¶ms.id, + PyC_ParseBool, ¶ms.values[0])) + { + return NULL; + } + + GPU_batch_uniform_1b(self->batch, params.id, params.values[0]); + Py_RETURN_NONE; +} + +static PyObject *bpygpu_VertBatch_uniform_i32(BPyGPUBatch *self, PyObject *args) +{ + struct { + const char *id; + int values[1]; + } params; + + if (!PyArg_ParseTuple( + args, "si:uniform_i32", + ¶ms.id, + ¶ms.values[0])) + { + return NULL; + } + + GPU_batch_uniform_1i(self->batch, params.id, params.values[0]); + Py_RETURN_NONE; +} + +static PyObject *bpygpu_VertBatch_uniform_f32(BPyGPUBatch *self, PyObject *args) +{ + struct { + const char *id; + float values[4]; + } params; + + if (!PyArg_ParseTuple( + args, "sf|fff:uniform_f32", + ¶ms.id, + ¶ms.values[0], ¶ms.values[1], ¶ms.values[2], ¶ms.values[3])) + { + return NULL; + } + + switch (PyTuple_GET_SIZE(args)) { + case 2: GPU_batch_uniform_1f(self->batch, params.id, params.values[0]); break; + case 3: GPU_batch_uniform_2f(self->batch, params.id, UNPACK2(params.values)); break; + case 4: GPU_batch_uniform_3f(self->batch, params.id, UNPACK3(params.values)); break; + case 5: GPU_batch_uniform_4f(self->batch, params.id, UNPACK4(params.values)); break; + default: + BLI_assert(0); + } + Py_RETURN_NONE; +} + +PyDoc_STRVAR(bpygpu_VertBatch_draw_doc, +"TODO" +); +static PyObject *bpygpu_VertBatch_draw(BPyGPUBatch *self) +{ + if (!glIsProgram(self->batch->program)) { + PyErr_SetString(PyExc_ValueError, + "batch program has not not set"); + } + GPU_batch_draw(self->batch); + Py_RETURN_NONE; +} + +static PyObject *bpygpu_VertBatch_program_use_begin(BPyGPUBatch *self) +{ + if (!glIsProgram(self->batch->program)) { + PyErr_SetString(PyExc_ValueError, + "batch program has not not set"); + } + GPU_batch_program_use_begin(self->batch); + Py_RETURN_NONE; +} + +static PyObject *bpygpu_VertBatch_program_use_end(BPyGPUBatch *self) +{ + if (!glIsProgram(self->batch->program)) { + PyErr_SetString(PyExc_ValueError, + "batch program has not not set"); + } + GPU_batch_program_use_end(self->batch); + Py_RETURN_NONE; +} + +static struct PyMethodDef bpygpu_VertBatch_methods[] = { + {"vertbuf_add", (PyCFunction)bpygpu_VertBatch_vertbuf_add, + METH_O, bpygpu_VertBatch_vertbuf_add_doc}, + {"program_set_builtin", (PyCFunction)bpygpu_VertBatch_program_set_builtin, + METH_VARARGS | METH_KEYWORDS, bpygpu_VertBatch_program_set_builtin_doc}, + {"uniform_bool", (PyCFunction)bpygpu_VertBatch_uniform_bool, + METH_VARARGS, NULL}, + {"uniform_i32", (PyCFunction)bpygpu_VertBatch_uniform_i32, + METH_VARARGS, NULL}, + {"uniform_f32", (PyCFunction)bpygpu_VertBatch_uniform_f32, + METH_VARARGS, NULL}, + {"draw", (PyCFunction) bpygpu_VertBatch_draw, + METH_NOARGS, bpygpu_VertBatch_draw_doc}, + {"program_use_begin", (PyCFunction)bpygpu_VertBatch_program_use_begin, + METH_NOARGS, ""}, + {"program_use_end", (PyCFunction)bpygpu_VertBatch_program_use_end, + METH_NOARGS, ""}, + {NULL, NULL, 0, NULL} +}; + +#ifdef USE_GPU_PY_REFERENCES + +static int bpygpu_Batch_traverse(BPyGPUBatch *self, visitproc visit, void *arg) +{ + Py_VISIT(self->references); + return 0; +} + +static int bpygpu_Batch_clear(BPyGPUBatch *self) +{ + Py_CLEAR(self->references); + return 0; +} + +#endif + +static void bpygpu_Batch_dealloc(BPyGPUBatch *self) +{ + GPU_batch_discard(self->batch); + +#ifdef USE_GPU_PY_REFERENCES + if (self->references) { + PyObject_GC_UnTrack(self); + bpygpu_Batch_clear(self); + Py_XDECREF(self->references); + } +#endif + + Py_TYPE(self)->tp_free(self); +} + +PyTypeObject BPyGPUBatch_Type = { + PyVarObject_HEAD_INIT(NULL, 0) + .tp_name = "GPUBatch", + .tp_basicsize = sizeof(BPyGPUBatch), + .tp_dealloc = (destructor)bpygpu_Batch_dealloc, +#ifdef USE_GPU_PY_REFERENCES + .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC, + .tp_traverse = (traverseproc)bpygpu_Batch_traverse, + .tp_clear = (inquiry)bpygpu_Batch_clear, +#else + .tp_flags = Py_TPFLAGS_DEFAULT, +#endif + .tp_methods = bpygpu_VertBatch_methods, + .tp_new = bpygpu_Batch_new, +}; + +/* -------------------------------------------------------------------- */ + + +/** \name GPU Types Module + * \{ */ + +static struct PyModuleDef BPy_BM_types_module_def = { + PyModuleDef_HEAD_INIT, + .m_name = "_gpu.types", +}; + +PyObject *BPyInit_gpu_types(void) +{ + PyObject *submodule; + + submodule = PyModule_Create(&BPy_BM_types_module_def); + + if (PyType_Ready(&BPyGPUVertFormat_Type) < 0) + return NULL; + if (PyType_Ready(&BPyGPUVertBuf_Type) < 0) + return NULL; + if (PyType_Ready(&BPyGPUBatch_Type) < 0) + return NULL; + +#define MODULE_TYPE_ADD(s, t) \ + PyModule_AddObject(s, t.tp_name, (PyObject *)&t); Py_INCREF((PyObject *)&t) + + MODULE_TYPE_ADD(submodule, BPyGPUVertFormat_Type); + MODULE_TYPE_ADD(submodule, BPyGPUVertBuf_Type); + MODULE_TYPE_ADD(submodule, BPyGPUBatch_Type); + +#undef MODULE_TYPE_ADD + + return submodule; +} + +/** \} */ + + +/* -------------------------------------------------------------------- */ + +/** \name Public API + * \{ */ + +PyObject *BPyGPUVertFormat_CreatePyObject(GPUVertFormat *fmt) +{ + BPyGPUVertFormat *self; + + self = PyObject_New(BPyGPUVertFormat, &BPyGPUVertFormat_Type); + if (fmt) { + self->fmt = *fmt; + } + else { + memset(&self->fmt, 0, sizeof(self->fmt)); + } + + return (PyObject *)self; +} + +PyObject *BPyGPUVertBuf_CreatePyObject(GPUVertBuf *buf) +{ + BPyGPUVertBuf *self; + + self = PyObject_New(BPyGPUVertBuf, &BPyGPUVertBuf_Type); + self->buf = buf; + + return (PyObject *)self; +} + + +PyObject *BPyGPUBatch_CreatePyObject(GPUBatch *batch) +{ + BPyGPUBatch *self; + +#ifdef USE_GPU_PY_REFERENCES + self = (BPyGPUBatch *)_PyObject_GC_New(&BPyGPUBatch_Type); + self->references = NULL; +#else + self = PyObject_New(BPyGPUBatch, &BPyGPUBatch_Type); +#endif + + self->batch = batch; + + return (PyObject *)self; +} + +/** \} */ |