Move most Nageru embedded shaders to the read_file() system.

[nageru] / nageru / uyvy_subsample.frag

diff --git a/nageru/uyvy_subsample.frag b/nageru/uyvy_subsample.frag
new file mode 100644 (file)
index 0000000..80e05b0
--- /dev/null
+++ b/nageru/uyvy_subsample.frag
@@ -0,0 +1,13 @@
+#version 130
+
+in vec2 y_tc0, y_tc1, cbcr_tc0, cbcr_tc1;
+uniform sampler2D y_tex, cbcr_tex;
+out vec4 FragColor;
+void main() {
+       float y0 = texture(y_tex, y_tc0).r;
+       float y1 = texture(y_tex, y_tc1).r;
+       vec2 cbcr0 = texture(cbcr_tex, cbcr_tc0).rg;
+       vec2 cbcr1 = texture(cbcr_tex, cbcr_tc1).rg;
+       vec2 cbcr = 0.5 * (cbcr0 + cbcr1);
+       FragColor = vec4(cbcr.g, y0, cbcr.r, y1);
+};