This extension adds a single function to query the current GPU timestamp, just like glGetInteger64v(GL_TIMESTAMP, ×tamp). This function is needed to complete the implementation of GOOGLE_display_timing, which needs to be able to coorelate GPU and CPU timestamps.
Signed-off-by: Keith Packard keithp@keithp.com --- include/vulkan/vulkan.h | 6 ++++++ src/Makefile.am | 1 + src/vulkan/meson.build | 1 + src/vulkan/registry/vk_mesa_query_timestamp.xml | 22 ++++++++++++++++++++++ 4 files changed, 30 insertions(+) create mode 100644 src/vulkan/registry/vk_mesa_query_timestamp.xml
diff --git a/include/vulkan/vulkan.h b/include/vulkan/vulkan.h index d3e2e246cf3..5523eb7586f 100644 --- a/include/vulkan/vulkan.h +++ b/include/vulkan/vulkan.h @@ -7025,6 +7025,12 @@ VKAPI_ATTR VkResult VKAPI_CALL vkGetMemoryHostPointerPropertiesEXT( VkMemoryHostPointerPropertiesEXT* pMemoryHostPointerProperties); #endif
+typedef VkResult (VKAPI_PTR *PFN_vkQueryCurrentTimestampMESA)(VkDevice device, uint64_t *timestamp); + +VKAPI_ATTR VkResult VKAPI_CALL vkQueryCurrentTimestampMESA( + VkDevice _device, + uint64_t *timestamp); + #ifdef __cplusplus } #endif diff --git a/src/Makefile.am b/src/Makefile.am index 014ffaf3e29..74ff305d7c6 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -68,6 +68,7 @@ endif
EXTRA_DIST += vulkan/registry/vk.xml EXTRA_DIST += vulkan/registry/vk_android_native_buffer.xml +EXTRA_DIST += vulkan/registry/vk_mesa_query_timestamp.xml
if HAVE_AMD_DRIVERS SUBDIRS += amd diff --git a/src/vulkan/meson.build b/src/vulkan/meson.build index 3908005b8a0..6ab0966b7c5 100644 --- a/src/vulkan/meson.build +++ b/src/vulkan/meson.build @@ -20,6 +20,7 @@
vk_api_xml = files('registry/vk.xml') vk_android_native_buffer_xml = files('registry/vk_android_native_buffer.xml') +vk_mesa_query_timestamp_xml = files('registry/vk_mesa_query_timestamp.xml')
inc_vulkan_util = include_directories('util') inc_vulkan_wsi = include_directories('wsi') diff --git a/src/vulkan/registry/vk_mesa_query_timestamp.xml b/src/vulkan/registry/vk_mesa_query_timestamp.xml new file mode 100644 index 00000000000..7fd4d974872 --- /dev/null +++ b/src/vulkan/registry/vk_mesa_query_timestamp.xml @@ -0,0 +1,22 @@ +<?xml version="1.0" encoding="UTF-8"?> +<registry> + <commands> + <command> + <proto><type>VkResult</type> <name>vkQueryCurrentTimestampMESA</name></proto> + <param><type>VkDevice</type> <name>device</name></param> + <param><type>uint64_t</type>* <name>pTimestamp</name></param> + </command> + </commands> + <extensions> + <extension name="VK_MESA_query_timestamp" number="200" + type="device" author="MESA" + contact="Keith Packard @keithp" + supported="vulkan"> + <require> + <enum value="1" name="VK_MESA_QUERY_TIMESTAMP_SPEC_VERSION"/> + <enum value=""VK_MESA_query_timestamp"" name="VK_MESA_QUERY_TIMESTAMP_NAME"/> + <command name="vkQueryCurrentTimestampMESA"/> + </require> + </extension> + </extensions> +</registry>