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Hash : 71c1138d
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Date : 2019-08-16T12:23:04
Vulkan: Emulate instanced attrib divisor This sets instancedArrays[ANGLE|EXT] extenstions as always supported regardless of underlying Vulkan HW's max vertex attrib divisor. Then detect instances where app sets a divisor that isn't supported by hardware and emulate those cases. Emulations is accomplished by copying the instanced attribs to a new buffer where each attrib is present once per instance, using the attrib divisor value as a factor to replicate the attribs, and then setting the actual divisor value for the draw to "1". Also, we only store 8 bits for the divisor used in the PSO, so this code also handles emulation of the case where divisor is > 255. This is passing all of the drawInstanced/Elements dEQP tests where divisor has to be emulated. Also enabled end2end InstancingTestES3 for Vulkan backend. Bug: angleproject:2672 Change-Id: I9932f9eab49b16a19e8bbd35dacaf3b5a27a213f Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1758689 Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com> Commit-Queue: Tobin Ehlis <tobine@google.com>
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Files
- BUILD.gn
- angle_deqp_tests_main.cpp
- angle_end2end_tests.gni
- angle_end2end_tests_main.cpp
- angle_perftests.gni
- angle_perftests_main.cpp
- angle_unittest_main.cpp
- angle_unittests.gni
- angle_unittests_utils.h
- angle_white_box_tests.gni
- angle_white_box_tests_main.cpp
- compiler_tests/
- deqp.gni
- deqp_support/
- egl_tests/
- gl_tests/
- gles1_conformance_tests/
- gles_conformance_tests/
- perf_tests/
- preprocessor_tests/
- test_expectations/
- test_utils/
- util_tests/
