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Conformance Test
Filip Demczewski, Mobica
Filip Demczewski, Mobica (filip.demczewski 'at'
In review
February 17, 2017 (version 1)
OpenGL 4.2 is required.
ARB_shader_atomic_counter extension is required.
ARB_shader_atomic_counter_ops extension is required.
This specification is written against:
- ARB_shader_atomic_counter_ops specification,
- OpenGL 4.5 (core) specification.
Test is validating new build-in functions that can operate on atomic counters
by comparing results to calculations done out of the shader code.
Tested operations:
- Addition and subtraction
- Minimum and maximum
- Bitwise operations
- Exchange operation, compare and exchange operation
New Tests
All test cases are composed from following steps:
- create a buffer for atomic counters (GL_ATOMIC_COUNTER_BUFFER) and fill it
with initial values
- perform atomic operations on buffer values in the shader
- validate shader output values against values calculated in the test code
Addition and subtraction test
* Test atomicCounterAddARB function
* Test atomicCounterSubtractARB function
* Additionally test values returned from functions listed above as we can be
sure that they should differ from the counter buffer values
Minimum and maximum test
* Test atomicCounterMinARB function
* Test atomicCounterMaxARB function
Bitwise operations test
* Test atomicCounterAndARB function
* Test atomicCounterOrARB function
* Test atomicCounterXorARB function
Exchange operations test
* Test atomicCounterExchangeARB function
* Test atomicCounterCompSwapARB function
Revision History
Revision 1, 17 February, 2017 (Filip Demczewski)
- Intial version;