On 12/08/2015 11:49 AM, Ilia Mirkin wrote:
On Tue, Dec 8, 2015 at 1:28 PM, Brian Paul <[email protected]> wrote:
On 12/08/2015 10:57 AM, Ilia Mirkin wrote:
Signed-off-by: Ilia Mirkin <[email protected]>
---
tests/bugs/texture-waw-hazard.shader_test | 36
+++++++++++++++++++++++++++++++
I thought we were trying to get away from putting things in tests/bugs/.
How about tests/spec/glsl-1.20/execution/ ?
Sure, happy to move it. I had a similar feeling, but wasn't sure where
to stick this... it's not testing functionality of any particular
version of anything.
I suggested tests/spec/glsl-1.20/execution/ since the shader file says
GLSL >= 1.20
-Brian
-ilia
-Brian
1 file changed, 36 insertions(+)
create mode 100644 tests/bugs/texture-waw-hazard.shader_test
diff --git a/tests/bugs/texture-waw-hazard.shader_test
b/tests/bugs/texture-waw-hazard.shader_test
new file mode 100644
index 0000000..7af0d87
--- /dev/null
+++ b/tests/bugs/texture-waw-hazard.shader_test
@@ -0,0 +1,36 @@
+# This test triggers a WaW situation on Kepler+, where the color
+# output is stored in registers $r0..$r3, and if the texture results
+# are also stored there, we might forget a barrier before overwriting
+# those registers with the green color value.
+[require]
+GLSL >= 1.20
+
+[vertex shader passthrough]
+
+[fragment shader]
+#version 120
+uniform sampler2D tex;
+uniform bool false_val = false;
+
+void main()
+{
+ vec4 tex = texture2D(tex, vec2(0));
+ if (false_val) {
+ // Make sure that the texbar ends up in the false
+ // branch. A plain copy might get optimized into
+ // something that happens to work out.
+ gl_FragColor = 0.5 * tex;
+ } else {
+ gl_FragColor = vec4(0, 1, 0, 1);
+ }
+}
+
+[test]
+texture rgbw 0 ( 8 , 8 )
+
+clear color 0.1 0.1 0.1 0.1
+clear
+
+uniform int tex 0
+draw rect -1 -1 2 2
+probe all rgba 0 1 0 1
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