Add separate shaders for GLSL 1.50.

[movit] / vs.150.vert

diff --git a/vs.150.vert b/vs.150.vert
new file mode 100644 (file)
index 0000000..4a524bc
--- /dev/null
+++ b/vs.150.vert
@@ -0,0 +1,24 @@
+#version 150
+
+in vec2 position;
+in vec2 texcoord;
+out vec2 tc;
+
+// Will be overridden by compile_glsl_program() if needed.
+// (It cannot just be prepended, as #version must be before everything.)
+#define FLIP_ORIGIN 0
+
+void main()
+{
+       // The result of glOrtho(0.0, 1.0, 0.0, 1.0, 0.0, 1.0) is:
+       //
+       //   2.000  0.000  0.000 -1.000
+       //   0.000  2.000  0.000 -1.000
+       //   0.000  0.000 -2.000 -1.000
+       //   0.000  0.000  0.000  1.000
+       gl_Position = vec4(2.0 * position.x - 1.0, 2.0 * position.y - 1.0, -1.0, 1.0);
+       tc = texcoord;
+#if FLIP_ORIGIN
+       tc.y = 1.0f - tc.y;
+#endif
+}