Function rerun::external::re_renderer::resource_managers::transfer_image_data_to_texture

pub fn transfer_image_data_to_texture(
    ctx: &RenderContext,
    image_data: ImageDataDesc<'_>,
    target_texture: &Arc<DynamicResource<GpuTextureHandle, TextureDesc, GpuTextureInternal>>
) -> Result<(), ImageDataToTextureError>

Takes raw image data and transfers & converts it to a GPU texture.

Schedules render passes to convert the data to a samplable textures if needed.

Generally, we currently do not use sRGB converting formats like wgpu::TextureFormat::Rgba8UnormSrgb in order to…

• have the same shader code path for high precision formats (e.g. an f16 texture that still encodes sRGB data)
• handle alpha pre-multiply on the fly (needs to happen before sRGB decode to linear)

Implementation note: Since we’re targeting WebGL, all data has always to be uploaded into textures (we can’t use raw buffers!). Buffer->Texture copies have restrictions on row padding, so any approach where we first allocate gpu readable memory and hand it to the user would make the API a lot more complicated.