[Piglit] [v4] ARB_transform_feedback3 tests

[Topi Pohjolainen]

Here is a combined series including revision of my api-error set
and some positive cases exercising the limits of the feedback
mechanism in the driver - use of maximum streams, buffers and
geometry shader invocations.

All are tested on either NVIDIA binary driver or Ivy Bridge. The
former supports all the tests and fails only on one of the api
error corner cases. Ivy Bridge in turn passes all that it
supports but skips quite a few that require also arb_gpu_shader5.

I got quite a bit of feedback from Ian to the api error tests
which I hope I have addressed all.

Topi Pohjolainen (11):
  arb_transform_feedback3: add test for buffer binding with invalid
    index
  arb_transform_feedback3: add test for querying with invalid index
  arb_transform_feedback3: add test for ending non-active query
  arb_transform_feedback3: add test trying to draw an invalid stream
  arb_transform_feedback3: add test trying to set invalid varyings
  arb_transform_feedback3: add test trying to set invalid separate mode
  util: buffer object probe
  arb_transform_feedback3: add test for interleaved in max buffers
  arb_transform_feedback3: add test for recording max streams
  arb_transform_feedback3: add test for interleaved in two buffers
  arb_transform_feedback3: add test for re-drawing multiple streams

 tests/all.tests                                    |  15 +
 tests/spec/CMakeLists.txt                          |   1 +
 .../spec/arb_transform_feedback3/CMakeLists.gl.txt |  22 ++
 tests/spec/arb_transform_feedback3/CMakeLists.txt  |   1 +
 .../bind_buffer_invalid_index.c                    | 124 +++++++
 .../draw_using_invalid_stream_index.c              | 104 ++++++
 .../end_query_with_name_zero.c                     |  64 ++++
 .../ext_interleaved_draw_streams.c                 | 399 +++++++++++++++++++++
 .../ext_interleaved_max_buffers_and_varyings.c     | 306 ++++++++++++++++
 .../ext_interleaved_max_streams.c                  | 249 +++++++++++++
 .../ext_interleaved_two_bufs.c                     | 311 ++++++++++++++++
 .../query_with_invalid_index.c                     | 109 ++++++
 .../arb_transform_feedback3/set_invalid_varyings.c | 182 ++++++++++
 .../set_varyings_with_invalid_args.c               | 118 ++++++
 tests/spec/arb_transform_feedback3/xfb3_common.c   | 147 ++++++++
 tests/spec/arb_transform_feedback3/xfb3_common.h   |  64 ++++
 tests/spec/ext_transform_feedback/separate.c       |  35 +-
 tests/util/piglit-util-gl-common.h                 |   4 +
 tests/util/piglit-util-gl.c                        |  24 ++
 19 files changed, 2253 insertions(+), 26 deletions(-)
 create mode 100644 tests/spec/arb_transform_feedback3/CMakeLists.gl.txt
 create mode 100644 tests/spec/arb_transform_feedback3/CMakeLists.txt
 create mode 100644 tests/spec/arb_transform_feedback3/bind_buffer_invalid_index.c
 create mode 100644 tests/spec/arb_transform_feedback3/draw_using_invalid_stream_index.c
 create mode 100644 tests/spec/arb_transform_feedback3/end_query_with_name_zero.c
 create mode 100644 tests/spec/arb_transform_feedback3/ext_interleaved_draw_streams.c
 create mode 100644 tests/spec/arb_transform_feedback3/ext_interleaved_max_buffers_and_varyings.c
 create mode 100644 tests/spec/arb_transform_feedback3/ext_interleaved_max_streams.c
 create mode 100644 tests/spec/arb_transform_feedback3/ext_interleaved_two_bufs.c
 create mode 100644 tests/spec/arb_transform_feedback3/query_with_invalid_index.c
 create mode 100644 tests/spec/arb_transform_feedback3/set_invalid_varyings.c
 create mode 100644 tests/spec/arb_transform_feedback3/set_varyings_with_invalid_args.c
 create mode 100644 tests/spec/arb_transform_feedback3/xfb3_common.c
 create mode 100644 tests/spec/arb_transform_feedback3/xfb3_common.h

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1.8.3.1