Cogl.Framebuffer.prototype.resolve_samples_region

function resolve_samples_region(x: Number(gint), y: Number(gint), width: Number(gint), height: Number(gint)): void {
    // Gjs wrapper for cogl_framebuffer_resolve_samples_region()
}
  

When point sample rendering (also known as multisample rendering) has been enabled via Cogl.Framebuffer.prototype.set_samples_per_pixel then you can optionally call this function (or Cogl.Framebuffer.prototype.resolve_samples) to explicitly resolve the point samples into values for the final color buffer.

Some GPUs will implicitly resolve the point samples during rendering and so this function is effectively a nop, but with other architectures it is desirable to defer the resolve step until the end of the frame.

Use of this API is recommended if incremental, small updates to a framebuffer are being made because by default Cogl will implicitly resolve all the point samples of the framebuffer which can result in redundant work if only a small number of samples have changed.

Because some GPUs implicitly resolve point samples this function only guarantees that at-least the region specified will be resolved and if you have rendered to a larger region then it's possible that other samples may be implicitly resolved.

Since 1.8

x

top-left x coordinate of region to resolve

y

top-left y coordinate of region to resolve

width

width of region to resolve

height

height of region to resolve