[RELEASE] u22-v03

This version is submitted to U22 breau.

core/loshader/menu_text.vshader

@@ -0,0 +1,24 @@
+layout (location = 0) in vec2 i_pos;
+layout (location = 1) in vec2 i_size;
+layout (location = 2) in vec2 i_uv_pos;
+layout (location = 3) in vec2 i_uv_size;
+layout (location = 4) in vec4 i_color;
+
+out vec2 v_uv;
+out vec4 v_color;
+
+void main(void) {
+  const vec2[] verts = vec2[](
+    vec2( 0.,  0.), vec2( 0., -1.), vec2( 1., -1.),
+    vec2( 0.,  0.), vec2( 1., -1.), vec2( 1.,  0.)
+
+  );
+
+  vec2 p  = gl_VertexID < verts.length()? verts[gl_VertexID]: vec2(0.);
+  vec2 dp = p*i_size + i_pos;
+
+  gl_Position = vec4(dp, 0, 1);
+  v_uv        = p*i_uv_size + i_uv_pos;
+  v_color     = i_color;
+}
+