wlroots/render/gles2/shaders/tex_external.frag
Andri Yngvason 2283e05c30 render: gles2: Add colour conversion matrix to shaders
This allows mapping to YCbCr without modifying the shader itself.

Signed-off-by: Andri Yngvason <andri@yngvason.is>
2026-05-18 18:20:07 +00:00

16 lines
343 B
GLSL

#extension GL_OES_EGL_image_external : require
#ifdef GL_FRAGMENT_PRECISION_HIGH
precision highp float;
#else
precision mediump float;
#endif
varying vec2 v_texcoord;
uniform samplerExternalOES texture0;
uniform float alpha;
uniform mat4 color_matrix;
void main() {
gl_FragColor = color_matrix * texture2D(texture0, v_texcoord) * alpha;
}