def free(self):
_, api, device = self.ctx
for alloc in self.allocations:
hvk.free_memory(api, device, alloc.device_memory)
del self.engine
def setup_swapchain_depth_stencil(recreate=False):
global depth_format, depth_stencil, depth_alloc, depth_view
if recreate:
hvk.destroy_image_view(api, device, depth_view)
hvk.destroy_image(api, device, depth_stencil)
hvk.free_memory(api, device, depth_alloc)
width, height = window.dimensions()
# Depth stencil attachment setup
depth_format = None
depth_formats = (vk.FORMAT_D32_SFLOAT_S8_UINT, vk.FORMAT_D24_UNORM_S8_UINT,
vk.FORMAT_D16_UNORM_S8_UINT)
for fmt in depth_formats:
prop = hvk.physical_device_format_properties(api, physical_device, fmt)
if IntFlag(vk.FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT) in IntFlag(
prop.optimal_tiling_features):
depth_format = fmt
break
if depth_format is None:
raise RuntimeError("Failed to find a suitable depth stencil format.")
# Depth stencil image creation
depth_stencil = hvk.create_image(
api, device,
hvk.image_create_info(format=depth_format,
extent=vk.Extent3D(width=width,
height=height,
depth=1),
usage=vk.IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT
| vk.IMAGE_USAGE_TRANSFER_SRC_BIT))
# Depth stencil image memory
image_memreq = hvk.image_memory_requirements(api, device, depth_stencil)
mt_index = find_memory_type(vk.MEMORY_HEAP_DEVICE_LOCAL_BIT,
vk.MEMORY_PROPERTY_DEVICE_LOCAL_BIT)
depth_stencil_size = image_memreq.size * 2
depth_alloc = hvk.allocate_memory(
api, device,
hvk.memory_allocate_info(allocation_size=depth_stencil_size,
memory_type_index=mt_index))
hvk.bind_image_memory(api, device, depth_stencil, depth_alloc)
# Depth stencil image view
depth_view = hvk.create_image_view(
api, device,
hvk.image_view_create_info(
image=depth_stencil,
format=depth_format,
subresource_range=hvk.image_subresource_range(
aspect_mask=vk.IMAGE_ASPECT_DEPTH_BIT
| vk.IMAGE_ASPECT_STENCIL_BIT)))
def clean_resources():
window.hide()
hvk.device_wait_idle(api, device)
hvk.destroy_fence(api, device, staging_fence)
hvk.destroy_command_pool(api, device, staging_pool)
hvk.destroy_command_pool(api, device, drawing_pool)
hvk.destroy_buffer(api, device, mesh_buffer)
hvk.free_memory(api, device, mesh_memory)
hvk.destroy_sampler(api, device, texture_sampler)
hvk.destroy_image_view(api, device, texture_view)
hvk.destroy_image(api, device, texture_image)
hvk.free_memory(api, device, texture_image_memory)
hvk.destroy_descriptor_pool(api, device, descriptor_pool)
hvk.destroy_buffer(api, device, uniforms_buffer)
hvk.free_memory(api, device, uniforms_mem)
hvk.destroy_pipeline(api, device, pipeline)
hvk.destroy_pipeline_cache(api, device, pipeline_cache)
hvk.destroy_pipeline_layout(api, device, pipeline_layout)
for m in shader_modules:
hvk.destroy_shader_module(api, device, m)
hvk.destroy_descriptor_set_layout(api, device, descriptor_set_layout)
for fb in framebuffers:
hvk.destroy_framebuffer(api, device, fb)
hvk.destroy_render_pass(api, device, render_pass)
hvk.destroy_semaphore(api, device, image_ready)
hvk.destroy_semaphore(api, device, rendering_done)
for f in render_fences:
hvk.destroy_fence(api, device, f)
hvk.destroy_image(api, device, depth_stencil)
hvk.destroy_image_view(api, device, depth_view)
hvk.free_memory(api, device, depth_alloc)
for v in swapchain_image_views:
hvk.destroy_image_view(api, device, v)
hvk.destroy_swapchain(api, device, swapchain)
hvk.destroy_device(api, device)
hvk.destroy_surface(api, instance, surface)
debugger.stop()
hvk.destroy_instance(api, instance)
window.destroy()
def mesh_to_device():
global mesh_buffer, mesh_memory, staging_mesh_buffer, staging_mesh_memory, mesh_data
# Create mesh resources
mesh_buffer = hvk.create_buffer(
api, device,
hvk.buffer_create_info(size=total_mesh_size,
usage=vk.BUFFER_USAGE_TRANSFER_DST_BIT
| vk.BUFFER_USAGE_INDEX_BUFFER_BIT
| vk.BUFFER_USAGE_VERTEX_BUFFER_BIT))
mesh_req = hvk.buffer_memory_requirements(api, device, mesh_buffer)
mt_index = find_memory_type(vk.MEMORY_HEAP_DEVICE_LOCAL_BIT,
vk.MEMORY_PROPERTY_DEVICE_LOCAL_BIT)
mesh_memory = hvk.allocate_memory(
api, device,
hvk.memory_allocate_info(allocation_size=mesh_req.size,
memory_type_index=mt_index))
hvk.bind_buffer_memory(api, device, mesh_buffer, mesh_memory, 0)
# Upload mesh to device memory (recording)
hvk.begin_command_buffer(api, staging_cmd, hvk.command_buffer_begin_info())
region = vk.BufferCopy(src_offset=0, dst_offset=0, size=mesh_req.size)
hvk.copy_buffer(api, staging_cmd, staging_mesh_buffer, mesh_buffer,
(region, ))
hvk.end_command_buffer(api, staging_cmd)
# Upload mesh to device memory (submiting)
submit_info = hvk.submit_info(command_buffers=(staging_cmd, ))
hvk.queue_submit(api,
render_queue.handle, (submit_info, ),
fence=staging_fence)
hvk.wait_for_fences(api, device, (staging_fence, ))
# Free staging resources
hvk.destroy_buffer(api, device, staging_mesh_buffer)
hvk.free_memory(api, device, staging_mesh_memory)
del mesh_data, staging_mesh_buffer, staging_mesh_memory
def texture_to_device():
global texture_image, texture_image_memory, texture_image_layout, texture_view, texture_sampler
global texture, staging_texture_buffer, staging_texture_memory
# Create the vulkan image
texture_image_layout = vk.IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL
texture_image = hvk.create_image(
api, device,
hvk.image_create_info(
format=texture.format,
mip_levels=len(texture.mipmaps),
extent=vk.Extent3D(texture.width, texture.height, texture.depth),
usage=vk.IMAGE_USAGE_TRANSFER_DST_BIT | vk.IMAGE_USAGE_SAMPLED_BIT,
))
img_req = hvk.image_memory_requirements(api, device, texture_image)
mt_index = find_memory_type(vk.MEMORY_HEAP_DEVICE_LOCAL_BIT,
vk.MEMORY_HEAP_DEVICE_LOCAL_BIT)
texture_image_memory = hvk.allocate_memory(
api, device,
hvk.memory_allocate_info(allocation_size=img_req.size,
memory_type_index=mt_index))
hvk.bind_image_memory(api, device, texture_image, texture_image_memory, 0)
# Build the copy regions (1 for each mipmap)
regions = []
for i, m in enumerate(texture.mipmaps):
region = hvk.buffer_image_copy(
image_subresource=hvk.image_subresource_layers(mip_level=i),
image_extent=vk.Extent3D(m.width, m.height, 1),
buffer_offset=m.offset)
regions.append(region)
# Build the image barrier for the image layout transitions
barrier = hvk.image_memory_barrier(
image=texture_image,
new_layout=0,
dst_access_mask=0,
subresource_range=hvk.image_subresource_range(
level_count=len(texture.mipmaps)))
# Transfer the staging data to device
hvk.begin_command_buffer(api, staging_cmd, hvk.command_buffer_begin_info())
barrier.new_layout = vk.IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL
barrier.dst_access_mask = vk.ACCESS_TRANSFER_WRITE_BIT
hvk.pipeline_barrier(api,
staging_cmd, (barrier, ),
dst_stage_mask=vk.PIPELINE_STAGE_TRANSFER_BIT)
hvk.copy_buffer_to_image(api, staging_cmd, staging_texture_buffer,
texture_image,
vk.IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, regions)
barrier.old_layout = vk.IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL
barrier.new_layout = vk.IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL
barrier.src_access_mask = vk.ACCESS_TRANSFER_WRITE_BIT
barrier.dst_access_mask = vk.ACCESS_SHADER_READ_BIT
hvk.pipeline_barrier(api,
staging_cmd, (barrier, ),
dst_stage_mask=vk.PIPELINE_STAGE_FRAGMENT_SHADER_BIT)
hvk.end_command_buffer(api, staging_cmd)
# Submit the staging command buffer
hvk.reset_fences(api, device, (staging_fence, ))
submit_info = hvk.submit_info(command_buffers=(staging_cmd, ))
hvk.queue_submit(api,
render_queue.handle, (submit_info, ),
fence=staging_fence)
hvk.wait_for_fences(api, device, (staging_fence, ))
# Create the image view and the sampler
texture_view = hvk.create_image_view(
api, device,
hvk.image_view_create_info(
image=texture_image,
format=texture.format,
subresource_range=hvk.image_subresource_range(
level_count=len(texture.mipmaps))))
texture_sampler = hvk.create_sampler(
api, device,
hvk.sampler_create_info(
mag_filter=vk.FILTER_LINEAR,
min_filter=vk.FILTER_LINEAR,
max_lod=len(texture.mipmaps),
))
# Free staging resources
hvk.destroy_buffer(api, device, staging_texture_buffer)
hvk.free_memory(api, device, staging_texture_memory)
del texture, staging_texture_buffer, staging_texture_memory
def free_alloc(self, alloc):
_, api, device = self.ctx
hvk.free_memory(api, device, alloc.device_memory)
self.allocations.remove(alloc)
