3 Commits

Author	SHA1	Message	Date
Benjamin Otte	f65d4914e4	gpu: Port convert op to GskGpuColorStates ... Make it handle straight alpha, too, by checking if the alt colorspace is premultiplied - which is the colorspace of the source.	2024-07-11 14:57:20 +02:00
Benjamin Otte	91d970e9c5	gpu: Add shaders for the new specialization constant ... This adds the following functions: output_color_from_alt() alt_color_from_output() Converts between the two colors output_color_alpha() alt_color_alpha() Multiplies a color with an alpha value	2024-07-11 14:57:20 +02:00
Matthias Clasen	a78796f22c	gpu: Add a color convert shader ... This shader converts between two color states, by using the same functions that we use on the cpu. The conversion to perform is passed as part of the variation. As premultiplication is part of color states on the shader, we also encode the premultiplication in the shader. And because opacity is a useful optimization, we also allow setting opacity. For now, the only possible color states are srgb and srgb-linear.	2024-07-11 14:57:20 +02:00