vulkan: add support for the atomic float ops extension

Author: cyanreg

libavutil/hwcontext_vulkan.c

@@ -96,6 +96,7 @@ typedef struct VulkanDevicePriv {
     VkPhysicalDeviceVulkan12Features device_features_1_2;
     VkPhysicalDeviceVulkan13Features device_features_1_3;
     VkPhysicalDeviceDescriptorBufferFeaturesEXT desc_buf_features;
+    VkPhysicalDeviceShaderAtomicFloatFeaturesEXT atomic_float_features;
 
     /* Queues */
     pthread_mutex_t **qf_mutex;
@@ -401,6 +402,7 @@ static const VulkanOptExtension optional_device_exts[] = {
     { VK_KHR_SAMPLER_YCBCR_CONVERSION_EXTENSION_NAME,         FF_VK_EXT_NO_FLAG                },
     { VK_EXT_DESCRIPTOR_BUFFER_EXTENSION_NAME,                FF_VK_EXT_DESCRIPTOR_BUFFER,     },
     { VK_EXT_PHYSICAL_DEVICE_DRM_EXTENSION_NAME,              FF_VK_EXT_DEVICE_DRM             },
+    { VK_EXT_SHADER_ATOMIC_FLOAT_EXTENSION_NAME,              FF_VK_EXT_ATOMIC_FLOAT           },
 
     /* Imports/exports */
     { VK_KHR_EXTERNAL_MEMORY_FD_EXTENSION_NAME,               FF_VK_EXT_EXTERNAL_FD_MEMORY     },
@@ -1202,9 +1204,13 @@ static int vulkan_device_create_internal(AVHWDeviceContext *ctx,
     VkPhysicalDeviceTimelineSemaphoreFeatures timeline_features = {
         .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_TIMELINE_SEMAPHORE_FEATURES,
     };
+    VkPhysicalDeviceShaderAtomicFloatFeaturesEXT atomic_float_features = {
+        .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_ATOMIC_FLOAT_FEATURES_EXT,
+        .pNext = &timeline_features,
+    };
     VkPhysicalDeviceDescriptorBufferFeaturesEXT desc_buf_features = {
         .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_DESCRIPTOR_BUFFER_FEATURES_EXT,
-        .pNext = &timeline_features,
+        .pNext = &atomic_float_features,
     };
     VkPhysicalDeviceVulkan13Features dev_features_1_3 = {
         .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_3_FEATURES,
@@ -1236,6 +1242,10 @@ static int vulkan_device_create_internal(AVHWDeviceContext *ctx,
     p->device_features_1_3.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_3_FEATURES;
     p->device_features_1_3.pNext = &p->desc_buf_features;
     p->desc_buf_features.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_DESCRIPTOR_BUFFER_FEATURES_EXT;
+    p->desc_buf_features.pNext = &p->atomic_float_features;
+    p->atomic_float_features.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_ATOMIC_FLOAT_FEATURES_EXT;
+    p->atomic_float_features.pNext = NULL;
+
     ctx->free = vulkan_device_free;
 
     /* Create an instance if not given one */
@@ -1290,6 +1300,9 @@ static int vulkan_device_create_internal(AVHWDeviceContext *ctx,
     p->desc_buf_features.descriptorBuffer = desc_buf_features.descriptorBuffer;
     p->desc_buf_features.descriptorBufferPushDescriptors = desc_buf_features.descriptorBufferPushDescriptors;
 
+    p->atomic_float_features.shaderBufferFloat32Atomics = atomic_float_features.shaderBufferFloat32Atomics;
+    p->atomic_float_features.shaderBufferFloat32AtomicAdd = atomic_float_features.shaderBufferFloat32AtomicAdd;
+
     dev_info.pNext = &hwctx->device_features;
 
     /* Setup queue family */

libavutil/vulkan.c

@@ -107,8 +107,21 @@ int ff_vk_load_props(FFVulkanContext *s)
         .pNext = &s->driver_props,
     };
 
+    s->atomic_float_feats = (VkPhysicalDeviceShaderAtomicFloatFeaturesEXT) {
+        .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_ATOMIC_FLOAT_FEATURES_EXT,
+    };
+    s->feats_12 = (VkPhysicalDeviceVulkan12Features) {
+        .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_2_FEATURES,
+        .pNext = &s->atomic_float_feats,
+    };
+    s->feats = (VkPhysicalDeviceFeatures2) {
+        .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2,
+        .pNext = &s->feats_12,
+    };
+
     vk->GetPhysicalDeviceProperties2(s->hwctx->phys_dev, &s->props);
     vk->GetPhysicalDeviceMemoryProperties(s->hwctx->phys_dev, &s->mprops);
+    vk->GetPhysicalDeviceFeatures2(s->hwctx->phys_dev, &s->feats);
 
     if (s->qf_props)
         return 0;

libavutil/vulkan.h

@@ -240,6 +240,10 @@ typedef struct FFVulkanContext {
     VkQueueFamilyProperties2 *qf_props;
     int tot_nb_qfs;
 
+    VkPhysicalDeviceShaderAtomicFloatFeaturesEXT atomic_float_feats;
+    VkPhysicalDeviceVulkan12Features feats_12;
+    VkPhysicalDeviceFeatures2 feats;
+
     AVHWDeviceContext     *device;
     AVVulkanDeviceContext *hwctx;
 

libavutil/vulkan_functions.h

@@ -47,6 +47,7 @@ typedef enum FFVulkanExtensions {
     FF_VK_EXT_VIDEO_ENCODE_H264      = 1ULL << 15, /* VK_EXT_video_encode_h264 */
     FF_VK_EXT_VIDEO_ENCODE_H265      = 1ULL << 16, /* VK_EXT_video_encode_h265 */
     FF_VK_EXT_VIDEO_DECODE_AV1       = 1ULL << 17, /* VK_MESA_video_decode_av1 */
+    FF_VK_EXT_ATOMIC_FLOAT           = 1ULL << 18, /* VK_EXT_shader_atomic_float */
 
     FF_VK_EXT_NO_FLAG                = 1ULL << 31,
 } FFVulkanExtensions;

libavutil/vulkan_loader.h

@@ -45,6 +45,7 @@ static inline uint64_t ff_vk_extensions_to_mask(const char * const *extensions,
         { VK_EXT_EXTERNAL_MEMORY_HOST_EXTENSION_NAME,      FF_VK_EXT_EXTERNAL_HOST_MEMORY   },
         { VK_EXT_DEBUG_UTILS_EXTENSION_NAME,               FF_VK_EXT_DEBUG_UTILS            },
         { VK_EXT_PHYSICAL_DEVICE_DRM_EXTENSION_NAME,       FF_VK_EXT_DEVICE_DRM             },
+        { VK_EXT_SHADER_ATOMIC_FLOAT_EXTENSION_NAME,       FF_VK_EXT_ATOMIC_FLOAT           },
 #ifdef _WIN32
         { VK_KHR_EXTERNAL_MEMORY_WIN32_EXTENSION_NAME,     FF_VK_EXT_EXTERNAL_WIN32_MEMORY  },
         { VK_KHR_EXTERNAL_SEMAPHORE_WIN32_EXTENSION_NAME,  FF_VK_EXT_EXTERNAL_WIN32_SEM     },