def _cast_ptr2(x, _type):
if isinstance(x, ffi.CData):
if (_type.item == ffi.typeof(x) or
(_type.item.cname == 'void' and ffi.typeof(x).kind in
['struct', 'union'])):
return ffi.addressof(x), x
return x, x
if isinstance(x, _collections.Iterable):
if _type.item.kind == 'pointer':
ptrs = [_cast_ptr(i, _type.item) for i in x]
ret = ffi.new(_type.item.cname+'[]', [i for i, _ in ptrs])
_weakkey_dict[ret] = tuple(i for _, i in ptrs if i != ffi.NULL)
else:
ret = ffi.new(_type.item.cname+'[]', x)
return ret, ret
return ffi.cast(_type, x), x
comp_shader_spirv = shader_data
comp_shader_spirv_size = len(comp_shader_spirv)
logging.debug('Create shader')
shaderInfo = VkShaderModuleCreateInfo(sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO,
codeSize = comp_shader_spirv_size,
pCode = comp_shader_spirv
)
p_shader_module = vkCreateShaderModule(device = logical_device,
pCreateInfo = shaderInfo, #cffi turns this to pointer??
pAllocator = 0
)
shader_main = ffi.new('char[]',b'main')
# Now bind indices to the two buffers for use in shader stage
binding0 = VkDescriptorSetLayoutBinding(binding = 0,
descriptorType = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER,
descriptorCount = 1,
stageFlags = VK_SHADER_STAGE_COMPUTE_BIT
)
binding1 = VkDescriptorSetLayoutBinding(binding = 1,
descriptorType = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER,
descriptorCount = 1,
stageFlags = VK_SHADER_STAGE_COMPUTE_BIT
)
descriptorInfo = VkDescriptorSetLayoutCreateInfo(sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO,
bindingCount = 2,
def vkMapMemory(device, memory, offset, size, flags):
ppData = ffi.new('void**')
def VK_VERSION_MAJOR(version):
return version >> 22
def VK_VERSION_MINOR(version):
return (version >> 12) & 0x3ff
def VK_VERSION_PATCH(version):
return version & 0xfff
VK_API_VERSION = VK_MAKE_VERSION(1, 0, 0)
VK_API_VERSION_1_0 = VK_MAKE_VERSION(1, 0, 0)
VK_NULL_HANDLE = 0
_UINT64_MAX = ffi.new('unsigned long long int*', 18446744073709551615)
UINT64_MAX = _UINT64_MAX[0]
{# iterate two times to handle dependacy between constants #}
{% for name, value in model.macros.items() %}
{% if value is not string %}
{{name}} = {{value}}
{% elif value is string and not value.startswith('VK_') %}
{{name}} = {{value}}
{% endif %}
{% endfor %}
{% for name, value in model.macros.items() %}
{% if value is string and value.startswith('VK_') %}
{{name}} = {{value}}
