Public Member Functions
	device_shared (gfx_device const &device)

	device_shared (device_shared const &)=delete

device_shared &	operator= (device_shared const &)=delete

	device_shared (device_shared &&)=delete

device_shared &	operator= (device_shared &&)=delete

void	destroy (gfx_device const *vulkanDevice)

std::vector< std::size_t >	allocate_pages (std::size_t num_pages) noexcept
	Allocate pages from the atlas.

void	free_pages (std::vector< std::size_t > const &pages) noexcept
	Deallocate pages back to the atlas.

void	draw_in_command_buffer (vk::CommandBuffer const &commandBuffer)

hi::pixmap_span< sfloat_rgba16 >	get_staging_pixmap ()
	Get the full staging pixel map excluding border.

void	prepare_atlas_for_rendering ()
	Prepare the atlas so that it can be used as a texture map by the shaders.

void	place_vertices (vector_span< vertex > &vertices, aarectangle const &clipping_rectangle, quad const &box, paged_image const &image) noexcept
	Place vertices for a single image.

Data Fields
gfx_device const &	device

vk::ShaderModule	vertex_shader_module

vk::ShaderModule	fragment_shader_module

std::vector< vk::PipelineShaderStageCreateInfo >	shader_stages

texture_map	staging_texture

std::vector< texture_map >	atlas_textures

std::array< vk::DescriptorImageInfo, atlas_maximum_num_images >	atlas_descriptor_image_infos

vk::Sampler	atlas_sampler

vk::DescriptorImageInfo	atlas_sampler_descriptor_image_info

Static Public Attributes
static constexpr std::size_t	atlas_num_pages_per_axis = 8

static constexpr std::size_t	atlas_num_pages_per_image = atlas_num_pages_per_axis * atlas_num_pages_per_axis

static constexpr std::size_t	atlas_image_axis_size = atlas_num_pages_per_axis * (paged_image::page_size + 2)

static constexpr std::size_t	atlas_maximum_num_images = 64

static constexpr std::size_t	staging_image_width = 1024

static constexpr std::size_t	staging_image_height = 1024

Member Function Documentation

◆ allocate_pages()

hi_inline std::vector< std::size_t > hi::v1::gfx_pipeline_image::device_shared::allocate_pages ( std::size_t num_pages )

noexcept

Allocate pages from the atlas.

hi_inline void hi::v1::gfx_pipeline_image::device_shared::destroy ( gfx_device const * vulkanDevice )

Deallocate vulkan resources. This is called in the destructor of gfx_device, therefor we can not use our gfx_device from this point on.

hi_inline void hi::v1::gfx_pipeline_image::device_shared::free_pages ( std::vector< std::size_t > const & pages )

noexcept

Deallocate pages back to the atlas.

hi_inline hi::pixmap_span< sfloat_rgba16 > hi::v1::gfx_pipeline_image::device_shared::get_staging_pixmap ( )

Get the full staging pixel map excluding border.

The returned pixel-map is offset by the page::border.

hi_inline void hi::v1::gfx_pipeline_image::device_shared::place_vertices	(	vector_span< vertex > &	vertices,
		aarectangle const &	clipping_rectangle,
		quad const &	box,
		paged_image const &	image )

noexcept

Place vertices for a single image.

Parameters

vertices	The list of vertices to add to.
clipping_rectangle	The rectangle to clip the glyph.
box	The rectangle of the image in window coordinates.
image	The image to render.

hi_inline void hi::v1::gfx_pipeline_image::device_shared::prepare_atlas_for_rendering ( )

Prepare the atlas so that it can be used as a texture map by the shaders.

The documentation for this struct was generated from the following files: