From 2a01066c56fffe67179a1d2abdcddb0c32b33a33 Mon Sep 17 00:00:00 2001
From: Timothy Arceri <tarceri@itsqueeze.com>
Date: Thu, 12 Apr 2018 13:13:29 +1000
Subject: [PATCH] arb_compute_shader: test shared 64bit ints

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103972
---
 .../basic-shared-64bit-int.shader_test        | 85 +++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 tests/spec/arb_compute_shader/execution/basic-shared-64bit-int.shader_test

diff --git a/tests/spec/arb_compute_shader/execution/basic-shared-64bit-int.shader_test b/tests/spec/arb_compute_shader/execution/basic-shared-64bit-int.shader_test
new file mode 100644
index 000000000..9ce59e655
--- /dev/null
+++ b/tests/spec/arb_compute_shader/execution/basic-shared-64bit-int.shader_test
@@ -0,0 +1,85 @@
+# Test for assigning values to a shared int64. Bug #103972
+
+[require]
+GL >= 4.0
+GLSL >= 4.00
+GL_ARB_compute_shader
+GL_ARB_shader_image_load_store
+GL_ARB_gpu_shader_int64
+
+[compute shader]
+#version 400
+#extension GL_ARB_compute_shader: enable
+#extension GL_ARB_shader_image_load_store: enable
+#extension GL_ARB_gpu_shader_int64: enable
+
+writeonly uniform image2D tex;
+
+layout(local_size_x=2, local_size_y=2, local_size_z=1) in;
+
+shared u64vec2 mmShared[192 * gl_WorkGroupSize.x * gl_WorkGroupSize.y];
+
+void main()
+{
+  ivec2 coord = ivec2(gl_GlobalInvocationID.xy);
+
+  uint b[8];
+  b[0] = 2101479989U;
+  b[1] = 1917184202U;
+  b[2] = 4191109983U;
+  b[3] = 1779160146U;
+  b[4] = 2746074432U;
+  b[5] = 2613207917U;
+  b[6] = 4045743315U;
+  b[7] = 4014514165U;
+
+  u64vec2 st[3];
+  st[0].x = packUint2x32(uvec2(b[0], b[1]));
+  st[0].y = packUint2x32(uvec2(b[2], b[3]));
+  st[1].x = packUint2x32(uvec2(b[4], b[5]));
+  st[1].y = packUint2x32(uvec2(b[6], b[7]));
+  st[2] = st[0];
+
+  u64vec2 mmLocal[192];
+
+  uint offset = gl_LocalInvocationIndex * 192;
+
+  uint io = 188+offset;
+  uint lsize = 192/3;
+
+  for (int i = 0; i < lsize; ++i) {
+    mmShared[io+0] = st[0];
+    mmShared[io+1] = st[1];
+    mmShared[io+2] = st[2];
+    io -= 3;
+  }
+
+  io = offset;
+  for(int i = 0; i < 192; ++i) {
+   mmLocal[i] = mmShared[io];   
+    ++io; 
+  }
+
+  // 2101479989,1917184202,4191109983,1779160146
+  uvec2 v01 = unpackUint2x32(mmLocal[1].x);
+  uvec2 v23 = unpackUint2x32(mmLocal[1].y);
+
+  uvec4 expected = uvec4(2101479989U,1917184202U,4191109983U,1779160146U);
+
+  vec4 colour;
+  if (uvec4(v01, v23) == expected)
+    colour = vec4(0.0, 1.0, 0.0, 1.0);
+  else
+    colour = vec4(1.0, 0.0, 0.0, 1.0);
+
+  imageStore(tex, coord, colour);
+}
+
+[test]
+uniform int tex 0
+texture rgbw 0 (16, 16) GL_RGBA8
+image texture 0 GL_RGBA8
+fb tex 2d 0
+
+compute 1 1 1
+probe all rgba 0.0 1.0 0.0 0.0
-- 
2.17.0