[Piglit] [PATCH 4/6] cl: Add gegl rgb-gamma-u8-to-ragabaf test

[Tom Stellard]

From: Tom Stellard <thomas.stellard at amd.com>

---
 tests/all_cl.tests                                 |  1 +
 .../execute/gegl-rgb-gamma-u8-to-ragabaf.cl        | 68 ++++++++++++++++++++++
 2 files changed, 69 insertions(+)
 create mode 100644 tests/cl/program/execute/gegl-rgb-gamma-u8-to-ragabaf.cl

diff --git a/tests/all_cl.tests b/tests/all_cl.tests
index b886d48..6994207 100644
--- a/tests/all_cl.tests
+++ b/tests/all_cl.tests
@@ -133,3 +133,4 @@ add_plain_program_tester_test(program_execute, 'Reference and dereference operat
 add_plain_program_tester_test(program_execute, 'get_global_id', 'execute/get-global-id.cl')
 add_plain_program_tester_test(program_execute, 'For loop', 'execute/for-loop.cl')
 add_plain_program_tester_test(program_execute, 'GEGL gamma-2-2-to-linear', 'execute/gegl-gamma-2-2-to-linear.cl')
+add_plain_program_tester_test(program_execute, 'GEGL rgb-gamma-u8-to-ragabaf', 'execute/gegl-rgb-gamma-u8-to-ragabaf.cl')
diff --git a/tests/cl/program/execute/gegl-rgb-gamma-u8-to-ragabaf.cl b/tests/cl/program/execute/gegl-rgb-gamma-u8-to-ragabaf.cl
new file mode 100644
index 0000000..f524e4e
--- /dev/null
+++ b/tests/cl/program/execute/gegl-rgb-gamma-u8-to-ragabaf.cl
@@ -0,0 +1,68 @@
+/* The OpenCL kernel comes from GEGL (www.gegl.org)
+ * File: gegl/opencl/gegl-cl-color-kernel.h
+ *
+ * GEGL is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * GEGL is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with GEGL; if not, see <http://www.gnu.org/licenses/>.
+ *
+ * Copyright 2012 Victor Oliveira (victormatheus at gmail.com)
+ */
+
+
+/*!
+[config]
+name: GEGL rgb_gamma_u8_to_ragabaf
+clc_version_min: 11
+kernel_name: rgb_gamma_u8_to_ragabaf
+global_size: 208320 1 1
+local_size: 1 1 1
+
+[test]
+name: A
+arg_in:  0  buffer uchar[624960] repeat  0   0   0   \
+                                         1   1   1   \
+                                         200 200 200 \
+                                         255 255 255
+
+arg_out: 1  buffer float4[208320] repeat 0.0      0.0      0.0      1.0 \
+                                         0.000303 0.000303 0.000303 1.0 \
+                                         0.577580 0.577580 0.577580 1.0 \
+                                         1.0      1.0      1.0      1.0 \
+                                         tolerance 0.000001
+!*/
+
+float gamma_2_2_to_linear (float value)
+{
+  if (value > 0.03928f)
+    return native_powr ((value + 0.055f) / 1.055f, 2.4f);
+  return value / 12.92f;
+}
+
+__kernel void rgb_gamma_u8_to_ragabaf (__global const uchar  * in,
+                                       __global       float4 * out)
+{
+  int gid = get_global_id(0);
+  uchar3 in_vc;
+  in_vc.x = in[(gid * 3)];
+  in_vc.y = in[(gid * 3) + 1];
+  in_vc.z = in[(gid * 3) + 2];
+  float3 in_v  = convert_float3(in_vc) / 255.0f;
+  float4 tmp_v;
+  tmp_v = (float4)(gamma_2_2_to_linear(in_v.x),
+                   gamma_2_2_to_linear(in_v.y),
+                   gamma_2_2_to_linear(in_v.z),
+                   1.0f);
+  float4 out_v;
+  out_v   = tmp_v * tmp_v.w;
+  out_v.w = tmp_v.w;
+  out[gid] = out_v;
+}
-- 
1.7.11.4