Luna::RHI::TextureStateFlag

enum TextureStateFlag : u32
{
    none= 0x00
    shader_read_vs= 0x01
    shader_read_ps= 0x02
    shader_write_ps= 0x04
    color_attachment_read= 0x08
    color_attachment_write= 0x10
    depth_stencil_attachment_read= 0x20
    depth_stencil_attachment_write= 0x40
    resolve_attachment= 0x80
    shader_read_cs= 0x0100
    shader_write_cs= 0x0200
    copy_dest= 0x0400
    copy_source= 0x0800
    present= 0x1000
    automatic= 0x80000000
    shader_read_write_ps= shader_read_ps | shader_write_ps
    shader_read_write_cs= shader_read_cs | shader_write_cs
}

Specifies texture resource states before and after one barrier.

Options

• none

  This resource is not used by the pipeline. Resources with no state flag cannot be used by the pipeline, and must be transfered to one valid state before it can be used.

• shader_read_vs

  Used as a sampled texture for vertex shader.

• shader_read_ps

  Used as a read-only resource for pixel shader.

• shader_write_ps

  Used as a write-only resource for pixel shader. Enabled only if pixel shader write feature is supported.

• color_attachment_read

  Used as a color attachment with read access.

• color_attachment_write

  Used as a color attachment with write access.

• depth_stencil_attachment_read

  Used as a depth stencil attachment with read access.

• depth_stencil_attachment_write

  Used as a depth stencil attachment with write access.

• resolve_attachment

  Used as a resolve attachment with write access.

• shader_read_cs

  Used as a shader resource for compute shader.

• shader_write_cs

  Used as a read-only unordered access for compute shader.

• copy_dest

  Used as a copy destination.

• copy_source

  Used as a copy source.

• present

  Used for swap chain presentation.

• automatic

  If this is specified as the before state, the system determines the before state automatically using the last state specified in the same command buffer for the resource. If this is the first time the resource is used in the current command buffer, the system loads the resource's global state automatically.

• shader_read_write_ps

  Used as a read-write resource for pixel shader. This is a combination of shader_read_ps and shader_write_ps.

• shader_read_write_cs

  Used as a read-write resource for compute shader. This is a combination of shader_read_cs and shader_write_cs.