diff options
Diffstat (limited to 'src/osd/modules/render/bgfx/shaders/chains/pillarbox_right_vertical/fs_saturation.sc')
-rw-r--r-- | src/osd/modules/render/bgfx/shaders/chains/pillarbox_right_vertical/fs_saturation.sc | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/osd/modules/render/bgfx/shaders/chains/pillarbox_right_vertical/fs_saturation.sc b/src/osd/modules/render/bgfx/shaders/chains/pillarbox_right_vertical/fs_saturation.sc new file mode 100644 index 00000000000..c14f61601c8 --- /dev/null +++ b/src/osd/modules/render/bgfx/shaders/chains/pillarbox_right_vertical/fs_saturation.sc @@ -0,0 +1,25 @@ +$input v_color0, v_texcoord0 + +// license:BSD-3-Clause +// copyright-holders:Ryan Holtz + +#include "common.sh" + +// User-supplied +uniform vec4 u_saturation; + +// Samplers +SAMPLER2D(s_tex, 0); + +void main() +{ + vec4 base = texture2D(s_tex, v_texcoord0); + vec3 rgb = base.rgb; + + vec3 gray = vec3(0.299, 0.587, 0.114); + float luma = dot(rgb, gray); + vec3 chroma = rgb - luma; + vec3 saturated = luma + chroma * u_saturation.x; + + gl_FragColor = vec4(saturated, base.a); +} |