From: Roland Scheidegger <srol...@vmware.com>
The logic failed whenever the random number was 0 for formats which don't have
an alpha channel. In this case all of expected/bias/value were 0 but the actual
correct read back value is 1.0 (default value for alpha channel sampling for
integer textures is 1 just like it is 1.0 for ordinary texture formats).
---
.../ext_texture_integer/texture-integer-glsl130.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/tests/spec/ext_texture_integer/texture-integer-glsl130.c
b/tests/spec/ext_texture_integer/texture-integer-glsl130.c
index 17b02bc..bc0d598 100644
--- a/tests/spec/ext_texture_integer/texture-integer-glsl130.c
+++ b/tests/spec/ext_texture_integer/texture-integer-glsl130.c
@@ -373,10 +373,11 @@ test_format(const struct format_info *info)
value[0] = temp;
break;
case GL_RGB_INTEGER_EXT:
- expected[3] = 0.0;
+ value[3] = 1.0;
break;
case GL_RG_INTEGER:
- expected[2] = expected[3] = 0.0;
+ value[2] = 0.0;
+ value[3] = 1.0;
break;
case GL_ALPHA_INTEGER_EXT:
expected[0] = expected[1] = expected[2] = 0.0;
@@ -404,7 +405,8 @@ test_format(const struct format_info *info)
expected[0] = expected[1] = expected[2] = expected[3] =
0.25;
value[1] = value[2] = value[3] = value[0];
} else {
- expected[1] = expected[2] = expected[3] = 0.0;
+ value[1] = value[2] = 0.0;
+ value[3] = 1.0;
}
break;
default:
--
1.7.9.5
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