NAME¶
memoryBarrier - controls the ordering of memory transactions issued by a single
shader invocation
DECLARATION¶
uint memoryBarrier(void);
DESCRIPTION¶
memoryBarrier waits on the completion of all memory accesses resulting
from the use of image variables or atomic counters and then returns with no
other effect. When this function returns, the results of any memory stores
performed using coherent variables performed prior to the call will be visible
to any future coherent memory access to the same addresses from other shader
invocations. In particular, the values written this way in one shader stage
are guaranteed to be visible to coherent memory accesses performed by shader
invocations in subsequent stages when those invocations were triggered by the
execution of the original shader invocation (e.g., fragment shader invocations
for a primitive resulting from a particular geometry shader invocation).
VERSION SUPPORT¶
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OpenGL Shading Language Version |
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Function Name |
1.10 |
1.20 |
1.30 |
1.40 |
1.50 |
3.30 |
4.00 |
4.10 |
4.20 |
4.30 |
4.40 |
4.50 |
memoryBarrier |
- |
- |
- |
- |
- |
- |
✔ |
✔ |
✔ |
✔ |
✔ |
✔ |
SEE ALSO¶
imageLoad(),
imageStore(),
imageAtomicAdd(),
imageAtomicMin(),
imageAtomicMax(),
imageAtomicXor(),
imageAtomicOr(),
imageAtomicAnd(),
imageAtomicExchange(),
imageAtomicCompSwap(),
groupMemoryBarrier(),
memoryBarrierImage(),
memoryBarrierBuffer(),
memoryBarrierShared()
COPYRIGHT¶
Copyright © 2011-2014 Khronos Group. This material may be distributed
subject to the terms and conditions set forth in the Open Publication License,
v 1.0, 8 June 1999.
http://opencontent.org/openpub/.
COPYRIGHT¶
Copyright © 2011-2014 Khronos Group