Struct GpuOutput 

pub struct GpuOutput {

    pub wanted: bool,
    pub on: bool,
    pub building: bool,
    pub pending: bool,
    pub never: bool,
    pub adapter: String,
    pub present_mode: &'static str,
    pub error: Option<String>,
    pub reserved: u64,
    pub frames: u64,
    pub cpu_frames: u64,
    pub upload_bytes: u64,
    pub upload_base: u64,
    pub base_px: u64,
    pub split_frames: u64,
    pub layer_textures: u32,
    pub layer_bytes: u64,
    pub layer_store: u64,
    pub image_quads: u32,
    pub image_textures: u32,
    pub image_bytes: u64,
    pub image_uploads: u64,
    pub image_hits: u64,
    pub image_evicted: u64,
    pub canvas_apart: u32,
    pub canvas_quads: u32,
    pub canvas_frames: u64,
    pub canvas_tiles: u32,
    pub canvas_bytes: u64,
    pub canvas_fills: u64,
    pub canvas_fill_us: u64,
    pub canvas_evicted: u64,
    pub canvas_settles: u64,
    pub canvas_diff_frames: u64,
    pub canvas_diff_px: u64,
    pub canvas_diff_sum: u64,
    pub canvas_diff_max: u32,
    pub render_us: u64,
    pub present_us: u64,
    pub switches: u32,
    pub leaves: u32,
    pub verified: u64,
    pub verify_bad: u64,
}

what a window shows through (Ui::gpu_output): status and counters of the GPU output, for tests and measurements

Fields

wanted: bool

the output is switched on for this run (jfgui_GPU, the gpu on of a script)

on: bool

the window’s frames go through its swapchain now

building: bool

its swapchain is being built

pending: bool

a frame waits for a free image, or for the window to come back

never: bool

no output in this run: no Vulkan, no usable adapter or surface, this target

adapter: String

the adapter (empty: none yet) and the present mode in use

present_mode: &'static str

error: Option<String>

what the last failure said (None: the last switch went well)

reserved: u64

bytes of GPU and staging memory the device holds in blocks

frames: u64

frames presented through the swapchain / the CPU path

cpu_frames: u64

upload_bytes: u64

bytes uploaded to the window’s textures, those of them to the base texture

upload_base: u64

base_px: u64

pixels of the base layer drawn again (what a layer above it no longer costs)

split_frames: u64

frames drawn layer by layer

layer_textures: u32

the layers above the base with a texture now, its bytes, and the bytes kept of the pixels below them

layer_bytes: u64

layer_store: u64

image_quads: u32

images drawn as textures in the window’s last frame; of all windows: textures, their bytes, uploads, frames that drew one, textures evicted

image_textures: u32

image_bytes: u64

image_uploads: u64

image_hits: u64

image_evicted: u64

canvas_apart: u32

canvases (canvas.rs): those whose view comes from tiles now in this window, those drawn so in its last frame, its frames that moved one; of all windows: tiles, their bytes, tiles drawn and the time that took (us), tiles evicted, gestures ended by the CPU’s picture

canvas_quads: u32

canvas_frames: u64

canvas_tiles: u32

canvas_bytes: u64

canvas_fills: u64

canvas_fill_us: u64

canvas_evicted: u64

canvas_settles: u64

canvas_diff_frames: u64

jfgui_GPU_VERIFY: where the tiles’ picture differed from the CPU’s during a gesture: frames, pixels, the sum of the largest channel difference per pixel, the largest one

canvas_diff_px: u64

canvas_diff_sum: u64

canvas_diff_max: u32

render_us: u64

time in the window’s renders and presents (us)

present_us: u64

switches: u32

switches to the swapchain, and back to the CPU path

leaves: u32

verified: u64

jfgui_GPU_VERIFY: images read back and compared, those that differed

verify_bad: u64

Trait Implementations

impl Clone for GpuOutput

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for GpuOutput

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for GpuOutput

fn default() -> Self

Returns the “default value” for a type.