GtkSnapshotpush_color_matrix

void
gtk_snapshot_push_color_matrix (
  GtkSnapshot* snapshot,
  const graphene_matrix_t* color_matrix,
  const graphene_vec4_t* color_offset
)

Modifies the colors of an image by applying an affine transformation in RGB space.

In particular, the colors will be transformed by applying

pixel = transpose(color_matrix) * pixel + color_offset

for every pixel. The transformation operates on unpremultiplied colors, with color components ordered R, G, B, A.

The image is recorded until the next call to gtk_snapshot_pop().

`color_matrix`	`graphene_matrix_t`
	The color matrix to use.
	The data is owned by the caller of the function.
`color_offset`	`graphene_vec4_t`
	The color offset to use.
	The data is owned by the caller of the function.