---
.../fs-bitfieldExtract.shader_test | 109 ++++++++++++++++++++
1 files changed, 109 insertions(+), 0 deletions(-)
create mode 100644
tests/spec/arb_gpu_shader5/execution/built-in-functions/fs-bitfieldExtract.shader_test
diff --git
a/tests/spec/arb_gpu_shader5/execution/built-in-functions/fs-bitfieldExtract.shader_test
b/tests/spec/arb_gpu_shader5/execution/built-in-functions/fs-bitfieldExtract.shader_test
new file mode 100644
index 0000000..5b810ff
--- /dev/null
+++
b/tests/spec/arb_gpu_shader5/execution/built-in-functions/fs-bitfieldExtract.shader_test
@@ -0,0 +1,109 @@
+[require]
+GLSL >= 1.50
+GL_ARB_gpu_shader5
+
+[vertex shader]
+in vec4 vertex;
+
+void main() {
+ gl_Position = vertex;
+}
+
+[fragment shader]
+#extension GL_ARB_gpu_shader5 : enable
+
+out vec4 color;
+
+uniform bool signed;
+
+uniform ivec4 iextract;
+uniform ivec4 iinput;
+uniform uvec4 uextract;
+uniform uvec4 uinput;
+
+uniform int offset, bits;
+
+void main()
+{
+ /* Green if both pass. */
+ color = vec4(0.0, 1.0, 0.0, 1.0);
+
+ if (signed && iextract != bitfieldExtract(iinput, offset, bits))
+ /* Red if bitfieldExtract(ivec4, ...) fails. */
+ color = vec4(1.0, 0.0, 0.0, 1.0);
+ else if (!signed && uextract != bitfieldExtract(uinput, offset, bits))
+ /* Blue if bitfieldExtract(uvec4, ...) fails. */
+ color = vec4(0.0, 0.0, 1.0, 1.0);
+}
+
+[vertex data]
+vertex/float/2
+-1.0 -1.0
+ 1.0 -1.0
+ 1.0 1.0
+-1.0 1.0
+
+[test]
+# Corner case: bits == 0 -> result == 0
+uniform int bits 0
+uniform int offset 0
+
+uniform int signed 1
+uniform ivec4 iextract 0 0 0 0
+uniform ivec4 iinput 2147483647 15 7 3
+draw arrays GL_TRIANGLE_FAN 0 4
+probe all rgba 0.0 1.0 0.0 1.0
+
+uniform int signed 0
+uniform uvec4 uextract 0 0 0 0
+uniform uvec4 uinput 0xFFFFFFFF 15 7 3
+draw arrays GL_TRIANGLE_FAN 0 4
+probe all rgba 0.0 1.0 0.0 1.0
+
+# Test that the most significant bits of the result get the sign extension of
+# the bits extracted from <value>.
+uniform int bits 1
+uniform int offset 0
+
+# Extract a single signed "1"-bit and sign-extend it, yielding 0xFFFFFFFF (-1).
+uniform int signed 1
+uniform ivec4 iextract -1 -1 -1 -1
+uniform ivec4 iinput 1 1 1 1
+draw arrays GL_TRIANGLE_FAN 0 4
+probe all rgba 0.0 1.0 0.0 1.0
+
+# Extract a single unsigned "1"-bit and sign-extend it, yielding 0x00000001
(1).
+uniform int signed 0
+uniform uvec4 uextract 1 1 1 1
+uniform uvec4 uinput 1 1 1 1
+draw arrays GL_TRIANGLE_FAN 0 4
+probe all rgba 0.0 1.0 0.0 1.0
+
+# Extract two signed bits (01) and sign-extend it, yielding 0x00000001 (1).
+# Extract two signed bits (11) and sign-extend it, yielding 0xFFFFFFFF (1).
+uniform int bits 2
+uniform int signed 1
+uniform ivec4 iextract 1 -1 -1 1
+uniform ivec4 iinput 1 3 3 1
+draw arrays GL_TRIANGLE_FAN 0 4
+probe all rgba 0.0 1.0 0.0 1.0
+
+# Test some other various values.
+uniform int bits 4
+uniform int offset 16
+
+uniform int signed 1
+uniform ivec4 iextract -1 0 1 3
+# 983040 is 0x000F0000.
+# 61440 is 0x0000F000.
+# 114688 is 0x0001C000.
+# 229376 is 0x00038000.
+uniform ivec4 iinput 983040 61440 114688 229376
+draw arrays GL_TRIANGLE_FAN 0 4
+probe all rgba 0.0 1.0 0.0 1.0
+
+uniform int signed 0
+uniform uvec4 uextract 0xF 0x0 0x1 0x3
+uniform uvec4 uinput 0x000F0000 0x0000F000 0x0001C000 0x00038000
+draw arrays GL_TRIANGLE_FAN 0 4
+probe all rgba 0.0 1.0 0.0 1.0
--
1.7.8.6
_______________________________________________
Piglit mailing list
Piglit@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/piglit
