https://bugs.freedesktop.org/show_bug.cgi?id=105067
Bug ID: 105067
Summary: Tesselation broken for dEQP tests
Product: Mesa
Version: git
Hardware: Other
OS: All
Status: NEW
Severity: normal
Priority: medium
Component: Mesa core
Assignee: mar...@gmail.com
Reporter: mark.a.ja...@intel.com
QA Contact: mesa-dev@lists.freedesktop.org
CC: bri...@vmware.com
dozens of tests regressed on each i965 platform, eg:
dEQP-GLES31.functional.tessellation_geometry_interaction.feedback.tessellation_output_isolines_geometry_output_points
Standard Output
Testing isolines->lines primitive conversion with and without transform
feedback.
Sending a patch of 4 vertices (2x2 uniform grid) to tessellation control
shader.
Control shader emits a patch of 9 vertices (3x3 uniform grid).
Setting outer tessellation level = 3, inner = 3.
Primitive generator emits isolines
Geometry shader transforms emitted primitives to points
Reading back vertex positions of generated primitives using transform feedback.
Verifying rendered image and feedback vertices are consistent.
Rendering scene again with identical shader program, but without setting
feedback varying. Expecting similar output image.
Rendering with transform feedback
Begin transform feedback with mode GL_POINTS
Calling drawArrays with mode GL_PATCHES
Verifying GL_PRIMITIVES_GENERATED, expecting 18
Error, GL_PRIMITIVES_GENERATED was 0
Bisected to:
commit e149a0253c12d103805230bc7bc0a36887c3b8df
Author: Marek Olšák <marek.ol...@amd.com>
Date: Thu Nov 16 04:29:35 2017 +0100
mesa,glsl,nir: reduce gl_state_index size to 2 bytes
Let's use the new gl_state_index16 type everywhere and remove
the typecasts.
This helps reduce the size of gl_program_parameter.
Reviewed-by: Brian Paul <bri...@vmware.com>
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