[Piglit] [PATCH] arb_separate_shader_objects: make sure explicit locations match and don't just overlap

[Timothy Arceri]

Test results: Nvidia GeForce 840M - NVIDIA 352.41: fail
Mesa 11.2 (dev): pass
---
 ...fs-explicit-location-mismatch-array.shader_test | 50 ++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 tests/spec/arb_separate_shader_objects/linker/vs-to-fs-explicit-location-mismatch-array.shader_test

diff --git a/tests/spec/arb_separate_shader_objects/linker/vs-to-fs-explicit-location-mismatch-array.shader_test b/tests/spec/arb_separate_shader_objects/linker/vs-to-fs-explicit-location-mismatch-array.shader_test
new file mode 100644
index 0000000..e359d63
--- /dev/null
+++ b/tests/spec/arb_separate_shader_objects/linker/vs-to-fs-explicit-location-mismatch-array.shader_test
@@ -0,0 +1,50 @@
+// From Section 4.4.1 (Input Layout Qualifiers) of the GLSL 4.5 spec:
+//
+//    "For the purposes of determining if a non-vertex input matches an output
+//    from a previous shader stage, the location layout qualifier (if any)
+//    must match."
+
+[require]
+GLSL >= 1.40
+GL_ARB_separate_shader_objects
+
+[vertex shader]
+#version 140
+#extension GL_ARB_separate_shader_objects : require
+
+in vec4 piglit_vertex;
+
+layout(location = 0) out vec4 out1[2];
+layout(location = 3) out vec4 out2;
+
+void main()
+{
+	gl_Position = piglit_vertex;
+	out1[0] = vec4(1.0, 0.0, 0.0, 1.0);
+	out1[1] = vec4(1.0, 1.0, 0.0, 1.0);
+	out2 = vec4(0.0);
+}
+
+[fragment shader]
+#version 140
+#extension GL_ARB_separate_shader_objects : require
+
+uniform int i;
+
+layout(location = 1) in vec4 out1[2];
+layout(location = 3) in vec4 out2;
+
+out vec4 color;
+
+void main()
+{
+	if (i == 0)
+		color = out1[0];
+	else if (i == 1)
+		color = out1[1];
+	else
+		color = out2;
+}
+
+[test]
+link error
-- 
2.4.3