// Copyright (c) 2014-2016 Khronos Group. This work is licensed under a // Creative Commons Attribution 4.0 International License; see // http://creativecommons.org/licenses/by/4.0/ VkQueryPipelineStatisticFlagBits(3) =================================== Name ---- VkQueryPipelineStatisticFlagBits - Bitmask specifying queried pipeline statistics C Specification --------------- // refBegin VkQueryPipelineStatisticFlagBits - Bitmask specifying queried pipeline statistics Bits which can: be set in pname:pipelineStatistics include: include::../api/enums/VkQueryPipelineStatisticFlagBits.txt[] Description ----------- These bits have the following meanings: * If ename:VK_QUERY_PIPELINE_STATISTIC_INPUT_ASSEMBLY_VERTICES_BIT is set, queries managed by the pool will count the number of vertices processed by the <> stage. Vertices corresponding to incomplete primitives may: contribute to the count. * If ename:VK_QUERY_PIPELINE_STATISTIC_INPUT_ASSEMBLY_PRIMITIVES_BIT is set, queries managed by the pool will count the number of primitives processed by the <> stage. If primitive restart is enabled, restarting the primitive topology has no effect on the count. Incomplete primitives may: be counted. * If ename:VK_QUERY_PIPELINE_STATISTIC_VERTEX_SHADER_INVOCATIONS_BIT is set, queries managed by the pool will count the number of vertex shader invocations. This counter's value is incremented each time a vertex shader is <>. * If ename:VK_QUERY_PIPELINE_STATISTIC_GEOMETRY_SHADER_INVOCATIONS_BIT is set, queries managed by the pool will count the number of geometry shader invocations. This counter's value is incremented each time a geometry shader is <>. In the case of <>, the geometry shader invocations count is incremented for each separate instanced invocation. * If ename:VK_QUERY_PIPELINE_STATISTIC_GEOMETRY_SHADER_PRIMITIVES_BIT is set, queries managed by the pool will count the number of primitives generated by geometry shader invocations. The counter's value is incremented each time the geometry shader emits a primitive. Restarting primitive topology using the SPIR-V instructions code:OpEndPrimitive or code:OpEndStreamPrimitive has no effect on the geometry shader output primitives count. * If ename:VK_QUERY_PIPELINE_STATISTIC_CLIPPING_INVOCATIONS_BIT is set, queries managed by the pool will count the number of primitives processed by the <> stage of the pipeline. The counter's value is incremented each time a primitive reaches the primitive clipping stage. * If ename:VK_QUERY_PIPELINE_STATISTIC_CLIPPING_PRIMITIVES_BIT is set, queries managed by the pool will count the number of primitives output by the <> stage of the pipeline. The counter's value is incremented each time a primitive passes the primitive clipping stage. The actual number of primitives output by the primitive clipping stage for a particular input primitive is implementation-dependent but must: satisfy the following conditions: ** If at least one vertex of the input primitive lies inside the clipping volume, the counter is incremented by one or more. ** Otherwise, the counter is incremented by zero or more. * If ename:VK_QUERY_PIPELINE_STATISTIC_FRAGMENT_SHADER_INVOCATIONS_BIT is set, queries managed by the pool will count the number of fragment shader invocations. The counter's value is incremented each time the fragment shader is <>. * If ename:VK_QUERY_PIPELINE_STATISTIC_TESSELLATION_CONTROL_SHADER_PATCHES_BIT is set, queries managed by the pool will count the number of patches processed by the tessellation control shader. The counter's value is incremented once for each patch for which a tessellation control shader is <>. * If ename:VK_QUERY_PIPELINE_STATISTIC_TESSELLATION_EVALUATION_SHADER_INVOCATIONS_BIT is set, queries managed by the pool will count the number of invocations of the tessellation evaluation shader. The counter's value is incremented each time the tessellation evaluation shader is <>. * If ename:VK_QUERY_PIPELINE_STATISTIC_COMPUTE_SHADER_INVOCATIONS_BIT is set, queries managed by the pool will count the number of compute shader invocations. The counter's value is incremented every time the compute shader is invoked. Implementations may: skip the execution of certain compute shader invocations or execute additional compute shader invocations for implementation-dependent reasons as long as the results of rendering otherwise remain unchanged. These values are intended to measure relative statistics on one implementation. Various device architectures will count these values differently. Any or all counters may: be affected by the issues described in <>. [NOTE] .Note ==== For example, tile-based rendering devices may: need to replay the scene multiple times, affecting some of the counts. ==== If a pipeline has pname:rasterizerDiscardEnable enabled, implementations may: discard primitives after the final vertex processing stage. As a result, if pname:rasterizerDiscardEnable is enabled, the clipping input and output primitives counters may: not be incremented. When a pipeline statistics query finishes, the result for that query is marked as available. The application can: copy the result to a buffer (via fname:vkCmdCopyQueryPoolResults), or request it be put into host memory (via fname:vkGetQueryPoolResults). // refEnd VkQueryPipelineStatisticFlagBits See Also -------- elink:VkQueryPipelineStatisticFlags Document Notes -------------- For more information, see the Vulkan Specification at URL https://www.khronos.org/registry/vulkan/specs/1.0/xhtml/vkspec.html#VkQueryPipelineStatisticFlagBits This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification,not directly. include::footer.txt[]