---
tests/shaders/glsl-fs-frontfacing-not.shader_test | 31 +++++++++++++++++++++++
1 file changed, 31 insertions(+)
create mode 100644 tests/shaders/glsl-fs-frontfacing-not.shader_test
diff --git a/tests/shaders/glsl-fs-frontfacing-not.shader_test
b/tests/shaders/glsl-fs-frontfacing-not.shader_test
new file mode 100644
index 0000000..6a85ef5
--- /dev/null
+++ b/tests/shaders/glsl-fs-frontfacing-not.shader_test
@@ -0,0 +1,31 @@
+[require]
+GL >= 2.0
+GLSL >= 1.20
+
+[vertex shader]
+void main()
+{
+ gl_Position = gl_Vertex;
+}
+
+[fragment shader]
+void main()
+{
+ /* st_glsl_to_tgsi.cpp would return a bool value of 0.0 or
+ * 1.0, instead of 0 or ~0 like it should with NativeIntegers
+ * set. Then the NOT operation would give a still-nonzero
+ * value.
+ */
+ if (!gl_FrontFacing)
+ gl_FragColor = vec4(0.0, 0.0, 1.0, 0.0);
+ else
+ gl_FragColor = vec4(0.0, 1.0, 0.0, 0.0);
+}
+
+[test]
+draw rect -1 -1 2 1
+draw rect 1 0 -2 1
+relative probe rgba (0, 0) (0.0, 1.0, 0.0, 0.0)
+relative probe rgba (1, 0) (0.0, 1.0, 0.0, 0.0)
+relative probe rgba (0, 1) (0.0, 0.0, 1.0, 0.0)
+relative probe rgba (1, 1) (0.0, 0.0, 1.0, 0.0)
--
2.1.1
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