def record_render_commands():
# Render commands recording
begin_info = hvk.command_buffer_begin_info()
width, height = window.dimensions()
render_pass_begin = hvk.render_pass_begin_info(
render_pass=render_pass,
framebuffer=0,
render_area=hvk.rect_2d(0, 0, width, height),
clear_values=(hvk.clear_value(color=(0.0, 0.0, 0.0, 1.0)),
hvk.clear_value(depth=1.0, stencil=0)))
for framebuffer, cmd in zip(framebuffers, cmd_draw):
render_pass_begin.framebuffer = framebuffer
hvk.begin_command_buffer(api, cmd, begin_info)
hvk.begin_render_pass(api, cmd, render_pass_begin,
vk.SUBPASS_CONTENTS_INLINE)
hvk.bind_pipeline(api, cmd, pipeline, vk.PIPELINE_BIND_POINT_GRAPHICS)
hvk.bind_index_buffer(api, cmd, mesh_buffer, mesh_indices['offset'],
vk.INDEX_TYPE_UINT16)
hvk.bind_vertex_buffers(api, cmd, (mesh_buffer, ),
(mesh_positions['offset'], ))
hvk.draw_indexed(api, cmd, mesh_indices['count'])
hvk.end_render_pass(api, cmd)
hvk.end_command_buffer(api, cmd)
def compute_noise():
hvk.begin_command_buffer(api, staging_cmd, hvk.command_buffer_begin_info())
# Execute the compute shader
hvk.bind_pipeline(api, staging_cmd, compute_pipeline,
vk.PIPELINE_BIND_POINT_COMPUTE)
hvk.bind_descriptor_sets(api, staging_cmd, vk.PIPELINE_BIND_POINT_COMPUTE,
compute_pipeline_layout,
(compute_descriptor_set, ))
hvk.dispatch(api, staging_cmd, 256 // 16, 256 // 16, 1)
# Move the image layout to shader read optimal for rendering
barrier = hvk.image_memory_barrier(
image=noise_image,
old_layout=vk.IMAGE_LAYOUT_GENERAL,
new_layout=vk.IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
src_access_mask=vk.ACCESS_TRANSFER_WRITE_BIT,
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, ))
def _setup_meshes_resources(self, staging_alloc, staging_buffer,
mesh_buffer_size):
engine, api, device = self.ctx
mem = engine.memory_manager
cmd = engine.setup_command_buffer
# Final buffer allocation
mesh_buffer = hvk.create_buffer(
api, device,
hvk.buffer_create_info(size=mesh_buffer_size,
usage=vk.BUFFER_USAGE_INDEX_BUFFER_BIT
| vk.BUFFER_USAGE_VERTEX_BUFFER_BIT
| vk.BUFFER_USAGE_TRANSFER_DST_BIT))
mesh_alloc = mem.alloc(mesh_buffer,
vk.STRUCTURE_TYPE_BUFFER_CREATE_INFO,
(vk.MEMORY_PROPERTY_DEVICE_LOCAL_BIT, ))
# Uploading commands
region = vk.BufferCopy(src_offset=0,
dst_offset=0,
size=mesh_buffer_size)
regions = (region, )
hvk.begin_command_buffer(api, cmd, hvk.command_buffer_begin_info())
hvk.copy_buffer(api, cmd, staging_buffer, mesh_buffer, regions)
hvk.end_command_buffer(api, cmd)
# Submitting
engine.submit_setup_command(wait=True)
return mesh_alloc, mesh_buffer
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 run(self, data_scene, data_compute, group, sync, after, before, callback):
if data_compute in self.running:
raise RuntimeError(f"Compute shader {data_compute.compute.name} is already running")
engine, api, device = self.ctx
queue = data_compute.queue
cmd = data_scene.compute_commands[data_compute.command_index]
pipeline = data_scene.compute_pipelines[data_compute.pipeline]
x, y, z = group
before = () if before is None else before
after = () if after is None else after
# Record the commands
hvk.begin_command_buffer(api, cmd, hvk.command_buffer_begin_info())
hvk.bind_pipeline(api, cmd, pipeline, vk.PIPELINE_BIND_POINT_COMPUTE)
hvk.bind_descriptor_sets(api, cmd, vk.PIPELINE_BIND_POINT_COMPUTE, data_compute.pipeline_layout, data_compute.descriptor_sets)
CommandsRunner.run_device(before, api, cmd, queue, data_scene)
hvk.dispatch(api, cmd, x, y, z)
CommandsRunner.run_device(after, api, cmd, queue, data_scene)
hvk.end_command_buffer(api, cmd)
# Execute the command buffer
cmds = (cmd,)
fence = data_compute.fence
infos = (hvk.submit_info(command_buffers=cmds),)
hvk.queue_submit(api, queue.handle, infos, fence)
if sync:
f = (fence,)
hvk.wait_for_fences(api, device, f)
hvk.reset_fences(api, device, f)
CommandsRunner.run_app(before, data_scene)
CommandsRunner.run_app(after, data_scene)
callback()
else:
self.running.add(data_compute)
raise NotImplementedError("Compute without sync is not yet implemented")
def noise_layout_to_general():
# Image that support write operation must have the layout `IMAGE_LAYOUT_GENERAL`
hvk.begin_command_buffer(api, staging_cmd, hvk.command_buffer_begin_info())
barrier = hvk.image_memory_barrier(
image=noise_image,
new_layout=vk.IMAGE_LAYOUT_GENERAL,
dst_access_mask=vk.ACCESS_TRANSFER_WRITE_BIT,
)
hvk.pipeline_barrier(api,
staging_cmd, (barrier, ),
dst_stage_mask=vk.PIPELINE_STAGE_TRANSFER_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, ))
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 _setup_image_layouts(self, staging_buffer, data_images):
engine, api, device = self.ctx
to_transfer = hvk.image_memory_barrier(
image=0,
new_layout=vk.IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
dst_access_mask=vk.ACCESS_TRANSFER_WRITE_BIT,
subresource_range=hvk.image_subresource_range(level_count=0))
to_final_layout = hvk.image_memory_barrier(
image=0,
old_layout=vk.IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
new_layout=0,
src_access_mask=vk.ACCESS_TRANSFER_WRITE_BIT,
dst_access_mask=0,
subresource_range=hvk.image_subresource_range(level_count=0))
cmd = engine.setup_command_buffer
hvk.begin_command_buffer(api, cmd, hvk.command_buffer_begin_info())
for data_image in data_images:
image = data_image.image
image_handle = data_image.image_handle
regions = []
for m in image.iter_mipmaps():
r = hvk.buffer_image_copy(
image_subresource=hvk.image_subresource_layers(
mip_level=m.level, base_array_layer=m.layer),
image_extent=vk.Extent3D(m.width, m.height, 1),
buffer_offset=data_image.base_staging_offset + m.offset)
regions.append(r)
to_transfer.image = image_handle
to_transfer.subresource_range.level_count = image.mipmaps_levels
to_transfer.subresource_range.layer_count = image.array_layers
to_final_layout.image = image_handle
to_final_layout.new_layout = data_image.target_layout
to_final_layout.dst_access_mask = data_image.target_access_mask
to_final_layout.subresource_range.level_count = image.mipmaps_levels
to_final_layout.subresource_range.layer_count = image.array_layers
hvk.pipeline_barrier(api,
cmd, (to_transfer, ),
dst_stage_mask=vk.PIPELINE_STAGE_TRANSFER_BIT)
hvk.copy_buffer_to_image(api, cmd, staging_buffer, image_handle,
vk.IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
regions)
hvk.pipeline_barrier(
api,
cmd, (to_final_layout, ),
dst_stage_mask=hvk.dst_stage_mask_for_access_mask(
to_final_layout.dst_access_mask))
hvk.end_command_buffer(api, cmd)
# Sumbit the images and update the layer values in the images
engine.submit_setup_command(wait=True)
for img in data_images:
img.layout = img.target_layout
img.access_mask = img.target_access_mask
