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| author | Lynne <dev@lynne.ee> | 2025-04-11 23:44:26 +0000 |
|---|---|---|
| committer | Lynne <dev@lynne.ee> | 2025-04-14 06:10:43 +0200 |
| commit | e040c087c708c3c4a4c747d7042f1825a454ca75 (patch) | |
| tree | 1d999d7f034920f146295f31d139714bd836c1f7 /libavutil/hwcontext_vulkan.c | |
| parent | 985a26be28f838e47cf2208e0254a7edf731ab41 (diff) | |
| download | ffmpeg-e040c087c708c3c4a4c747d7042f1825a454ca75.tar.gz | |
vulkan: add support for expect/assume
This commit adds support for compiler hints.
While on AMD these are not used/needed, Nvidia benefits from them, and gives
a sizeable 10% speedup on 4k.
Diffstat (limited to 'libavutil/hwcontext_vulkan.c')
| -rw-r--r-- | libavutil/hwcontext_vulkan.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/libavutil/hwcontext_vulkan.c b/libavutil/hwcontext_vulkan.c index f60868ab18..8823af0175 100644 --- a/libavutil/hwcontext_vulkan.c +++ b/libavutil/hwcontext_vulkan.c @@ -79,6 +79,7 @@ typedef struct VulkanDeviceFeatures { VkPhysicalDeviceVulkan12Features vulkan_1_2; VkPhysicalDeviceVulkan13Features vulkan_1_3; VkPhysicalDeviceTimelineSemaphoreFeatures timeline_semaphore; + VkPhysicalDeviceShaderExpectAssumeFeatures expect_assume; VkPhysicalDeviceVideoMaintenance1FeaturesKHR video_maintenance_1; #ifdef VK_KHR_video_maintenance2 @@ -210,6 +211,9 @@ static void device_features_init(AVHWDeviceContext *ctx, VulkanDeviceFeatures *f OPT_CHAIN(&feats->timeline_semaphore, FF_VK_EXT_PORTABILITY_SUBSET, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_TIMELINE_SEMAPHORE_FEATURES); + OPT_CHAIN(&feats->expect_assume, FF_VK_EXT_EXPECT_ASSUME, + VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_EXPECT_ASSUME_FEATURES_KHR); + OPT_CHAIN(&feats->video_maintenance_1, FF_VK_EXT_VIDEO_MAINTENANCE_1, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VIDEO_MAINTENANCE_1_FEATURES_KHR); #ifdef VK_KHR_video_maintenance2 @@ -302,6 +306,8 @@ static void device_features_copy_needed(VulkanDeviceFeatures *dst, VulkanDeviceF COPY_VAL(relaxed_extended_instruction.shaderRelaxedExtendedInstruction); #endif + COPY_VAL(expect_assume.shaderExpectAssume); + COPY_VAL(optical_flow.opticalFlow); #undef COPY_VAL } @@ -616,6 +622,7 @@ static const VulkanOptExtension optional_device_exts[] = { { VK_KHR_COOPERATIVE_MATRIX_EXTENSION_NAME, FF_VK_EXT_COOP_MATRIX }, { VK_NV_OPTICAL_FLOW_EXTENSION_NAME, FF_VK_EXT_OPTICAL_FLOW }, { VK_EXT_SHADER_OBJECT_EXTENSION_NAME, FF_VK_EXT_SHADER_OBJECT }, + { VK_KHR_SHADER_EXPECT_ASSUME_EXTENSION_NAME, FF_VK_EXT_EXPECT_ASSUME }, { VK_KHR_VIDEO_MAINTENANCE_1_EXTENSION_NAME, FF_VK_EXT_VIDEO_MAINTENANCE_1 }, #ifdef VK_KHR_video_maintenance2 { VK_KHR_VIDEO_MAINTENANCE_2_EXTENSION_NAME, FF_VK_EXT_VIDEO_MAINTENANCE_2 }, |