From: Emil Velikov <[email protected]> Check if one member is (attempted to be) positioned on top of another, and that the assigned offset(s) increase naturally.
Signed-off-by: Emil Velikov <[email protected]> --- .../explicit-offsets/decreasing-offset.vert | 27 ++++++++++++++++++++ .../members-stamping-each-other.vert | 29 ++++++++++++++++++++++ .../multiple-members-same-offset.vert | 29 ++++++++++++++++++++++ 3 files changed, 85 insertions(+) create mode 100644 tests/spec/arb_enhanced_layout/compiler/explicit-offsets/decreasing-offset.vert create mode 100644 tests/spec/arb_enhanced_layout/compiler/explicit-offsets/members-stamping-each-other.vert create mode 100644 tests/spec/arb_enhanced_layout/compiler/explicit-offsets/multiple-members-same-offset.vert diff --git a/tests/spec/arb_enhanced_layout/compiler/explicit-offsets/decreasing-offset.vert b/tests/spec/arb_enhanced_layout/compiler/explicit-offsets/decreasing-offset.vert new file mode 100644 index 0000000..86a1fae --- /dev/null +++ b/tests/spec/arb_enhanced_layout/compiler/explicit-offsets/decreasing-offset.vert @@ -0,0 +1,27 @@ +// [config] +// expect_result: fail +// glsl_version: 1.40 +// require_extensions: GL_ARB_enhanced_layouts +// check_link: false +// [end config] +// +// ARB_enhanced_layouts spec says: +// "It is a compile-time error to +// specify an *offset* that is smaller than the offset of the previous +// member in the block..." +// +// Tests whether assigning a smaller offset for sequential member triggers +// a compile-time error. +// + +#version 140 +#extension GL_ARB_enhanced_layouts : enable + +layout(std140) uniform block { + layout(offset = 32) vec4 var1; + layout(offset = 0) vec4 var2; // Wrong: offset but be larger than one of previous member +}; + +void main() +{ +} diff --git a/tests/spec/arb_enhanced_layout/compiler/explicit-offsets/members-stamping-each-other.vert b/tests/spec/arb_enhanced_layout/compiler/explicit-offsets/members-stamping-each-other.vert new file mode 100644 index 0000000..826ac20 --- /dev/null +++ b/tests/spec/arb_enhanced_layout/compiler/explicit-offsets/members-stamping-each-other.vert @@ -0,0 +1,29 @@ +// [config] +// expect_result: fail +// glsl_version: 1.40 +// require_extensions: GL_ARB_enhanced_layouts +// check_link: false +// [end config] +// +// ARB_enhanced_layouts spec says: +// "It is a compile-time error to +// specify an *offset* that is smaller than the offset of the previous +// member in the block or that lies within the previous member of the +// block." +// +// Tests whether assigning the same offsets for multiple members trigger +// a compile-time error. +// XXX: fuzz for other (all?) types ? +// + +#version 140 +#extension GL_ARB_enhanced_layouts : enable + +layout(std140) uniform block { + layout(offset = 0) vec4 var1; + layout(offset = 8) vec4 var2; // Wrong: must use 16+ as offset +}; + +void main() +{ +} diff --git a/tests/spec/arb_enhanced_layout/compiler/explicit-offsets/multiple-members-same-offset.vert b/tests/spec/arb_enhanced_layout/compiler/explicit-offsets/multiple-members-same-offset.vert new file mode 100644 index 0000000..e4630b2 --- /dev/null +++ b/tests/spec/arb_enhanced_layout/compiler/explicit-offsets/multiple-members-same-offset.vert @@ -0,0 +1,29 @@ +// [config] +// expect_result: fail +// glsl_version: 1.40 +// require_extensions: GL_ARB_enhanced_layouts +// check_link: false +// [end config] +// +// ARB_enhanced_layouts spec says: +// "It is a compile-time error to +// specify an *offset* that is smaller than the offset of the previous +// member in the block or that lies within the previous member of the +// block." +// +// Tests whether assigning the same offsets for multiple members trigger +// a compile-time error. +// Note: not explicitly mentioned in the spec. +// + +#version 140 +#extension GL_ARB_enhanced_layouts : enable + +layout(std140) uniform block { + layout(offset = 32) vec4 var1; + layout(offset = 32) vec4 var2; // Wrong; cannot have the same offset +}; + +void main() +{ +} -- 2.6.1 _______________________________________________ Piglit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/piglit
