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PyGPU: make sure the UniformBuffer is padded to 16 bytes

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Alignment with `vec4` is a requirement in C++, so it should be a
requirement in Python as well.
This commit is contained in:
Germano Cavalcante
2022-04-11 16:54:05 -03:00
parent 07cacb6d14
commit 4aa9888854
1 changed files with 9 additions and 4 deletions
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13
source/blender/python/gpu/gpu_py_uniformbuffer.c
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@@ -78,12 +78,17 @@ static PyObject *pygpu_uniformbuffer__tp_new(PyTypeObject *UNUSED(self),
return NULL; return NULL;
} }
if (GPU_context_active_get()) { if (!GPU_context_active_get()) {
ubo = GPU_uniformbuf_create_ex( STRNCPY(err_out, "No active GPU context found");
bpygpu_Buffer_size(pybuffer_obj), pybuffer_obj->buf.as_void, "python_uniformbuffer");
} }
else { else {
STRNCPY(err_out, "No active GPU context found"); size_t size = bpygpu_Buffer_size(pybuffer_obj);
if ((size % 16) != 0) {
STRNCPY(err_out, "UBO is not padded to size of vec4");
}
else {
ubo = GPU_uniformbuf_create_ex(size, pybuffer_obj->buf.as_void, "python_uniformbuffer");
}
} }
if (ubo == NULL) { if (ubo == NULL) {