Method

CoglOnscreenqueue_damage_region

Declaration [src]

void
cogl_onscreen_queue_damage_region (
  CoglOnscreen* onscreen,
  const int* rectangles,
  int n_rectangles
)

Description [src]

Implementation for https://www.khronos.org/registry/EGL/extensions/KHR/EGL_KHR_partial_update.txt This immediately queues state to OpenGL that will be used for the next swap. This needs to be called every frame.

The expected values are independent of any viewport transforms applied to the framebuffer.

Parameters

rectangles

Type: An array of int

An array of integer 4-tuples representing damaged rectangles as (x, y, width, height) tuples.

The length of the array is specified in the n_rectangles argument.

The data is owned by the caller of the method.

n_rectangles

Type: int

The number of 4-tuples to be read from rectangles.