Limited availability
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
Note: This feature is available in Web Workers.
The getPreferredCanvasFormat()
method of the GPU
interface returns the optimal canvas texture format for displaying 8-bit depth, standard dynamic range content on the current system.
This is commonly used to provide a GPUCanvasContext.configure()
call with the optimal format
value for the current system. This is recommended â if you don't use the preferred format when configuring the canvas context, you may incur additional overhead, such as additional texture copies, depending on the platform.
getPreferredCanvasFormat()
Parameters
None.
Return valueA string indicating a canvas texture format. The value can be rgba8unorm
or bgra8unorm
.
None.
Examplesconst canvas = document.querySelector("#gpuCanvas");
const context = canvas.getContext("webgpu");
context.configure({
device,
format: navigator.gpu.getPreferredCanvasFormat(),
alphaMode: "premultiplied",
});
Specifications Browser compatibility See also
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