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hwcontext_vulkan: switch to using timeline semaphores

This commit is contained in:
Lynne 2021-11-04 12:17:06 +01:00
parent 7f3878828d
commit 00ef53c3ea
No known key found for this signature in database
GPG Key ID: A2FEA5F03F034464
2 changed files with 92 additions and 12 deletions
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91
libavutil/hwcontext_vulkan.c
View File

@ -74,7 +74,7 @@ enum VulkanExtensions {
/* Device */ \
MACRO(1, 0, EXT_NO_FLAG, GetDeviceProcAddr) \
MACRO(1, 0, EXT_NO_FLAG, CreateDevice) \
MACRO(1, 0, EXT_NO_FLAG, GetPhysicalDeviceFeatures) \
MACRO(1, 0, EXT_NO_FLAG, GetPhysicalDeviceFeatures2) \
MACRO(1, 0, EXT_NO_FLAG, DestroyDevice) \
\
MACRO(1, 0, EXT_NO_FLAG, EnumeratePhysicalDevices) \
@ -198,6 +198,10 @@ typedef struct VulkanDevicePriv {
VkPhysicalDeviceMemoryProperties mprops;
VkPhysicalDeviceExternalMemoryHostPropertiesEXT hprops;
/* Features */
VkPhysicalDeviceVulkan11Features device_features_1_1;
VkPhysicalDeviceVulkan12Features device_features_1_2;
/* Queues */
uint32_t qfs[3];
int num_qfs;
@ -1176,7 +1180,7 @@ err:
}
static int submit_exec_ctx(AVHWFramesContext *hwfc, VulkanExecCtx *cmd,
VkSubmitInfo *s_info, int synchronous)
VkSubmitInfo *s_info, AVVkFrame *f, int synchronous)
{
VkResult ret;
VulkanQueueCtx *q = &cmd->queues[cmd->cur_queue_idx];
@ -1200,6 +1204,10 @@ static int submit_exec_ctx(AVHWFramesContext *hwfc, VulkanExecCtx *cmd,
return AVERROR_EXTERNAL;
}
if (f)
for (int i = 0; i < s_info->signalSemaphoreCount; i++)
f->sem_value[i]++;
q->was_synchronous = synchronous;
if (synchronous) {
@ -1250,7 +1258,17 @@ static int vulkan_device_create_internal(AVHWDeviceContext *ctx,
VulkanDevicePriv *p = ctx->internal->priv;
VulkanFunctions *vk = &p->vkfn;
AVVulkanDeviceContext *hwctx = ctx->hwctx;
VkPhysicalDeviceFeatures dev_features = { 0 };
VkPhysicalDeviceVulkan12Features dev_features_1_2 = {
.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_2_FEATURES,
};
VkPhysicalDeviceVulkan11Features dev_features_1_1 = {
.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_1_FEATURES,
.pNext = &dev_features_1_2,
};
VkPhysicalDeviceFeatures2 dev_features = {
.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2,
.pNext = &dev_features_1_1,
};
VkDeviceQueueCreateInfo queue_create_info[3] = {
{ .sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO, },
{ .sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO, },
@ -1265,6 +1283,10 @@ static int vulkan_device_create_internal(AVHWDeviceContext *ctx,
};
hwctx->device_features.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2;
hwctx->device_features.pNext = &p->device_features_1_1;
p->device_features_1_1.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_1_FEATURES;
p->device_features_1_1.pNext = &p->device_features_1_2;
p->device_features_1_2.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_2_FEATURES;
ctx->free = vulkan_device_free;
/* Create an instance if not given one */
@ -1275,10 +1297,10 @@ static int vulkan_device_create_internal(AVHWDeviceContext *ctx,
if ((err = find_device(ctx, dev_select)))
goto end;
vk->GetPhysicalDeviceFeatures(hwctx->phys_dev, &dev_features);
vk->GetPhysicalDeviceFeatures2(hwctx->phys_dev, &dev_features);
/* Try to keep in sync with libplacebo */
#define COPY_FEATURE(DST, NAME) (DST).features.NAME = dev_features.NAME;
#define COPY_FEATURE(DST, NAME) (DST).features.NAME = dev_features.features.NAME;
COPY_FEATURE(hwctx->device_features, shaderImageGatherExtended)
COPY_FEATURE(hwctx->device_features, shaderStorageImageReadWithoutFormat)
COPY_FEATURE(hwctx->device_features, shaderStorageImageWriteWithoutFormat)
@ -1287,6 +1309,13 @@ static int vulkan_device_create_internal(AVHWDeviceContext *ctx,
COPY_FEATURE(hwctx->device_features, shaderInt64)
#undef COPY_FEATURE
/* We require timeline semaphores */
if (!dev_features_1_2.timelineSemaphore) {
av_log(ctx, AV_LOG_ERROR, "Device does not support timeline semaphores!\n");
err = AVERROR(ENOSYS);
}
p->device_features_1_2.timelineSemaphore = 1;
/* Search queue family */
if ((err = search_queue_families(ctx, &dev_info)))
goto end;
@ -1732,18 +1761,28 @@ static int prepare_frame(AVHWFramesContext *hwfc, VulkanExecCtx *ectx,
const int planes = av_pix_fmt_count_planes(hwfc->sw_format);
VulkanDevicePriv *p = hwfc->device_ctx->internal->priv;
VulkanFunctions *vk = &p->vkfn;
uint64_t sem_sig_val[AV_NUM_DATA_POINTERS];
VkImageMemoryBarrier img_bar[AV_NUM_DATA_POINTERS] = { 0 };
VkTimelineSemaphoreSubmitInfo s_timeline_sem_info = {
.sType = VK_STRUCTURE_TYPE_TIMELINE_SEMAPHORE_SUBMIT_INFO,
.pSignalSemaphoreValues = sem_sig_val,
.signalSemaphoreValueCount = planes,
};
VkSubmitInfo s_info = {
.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO,
.pNext = &s_timeline_sem_info,
.pSignalSemaphores = frame->sem,
.signalSemaphoreCount = planes,
};
VkPipelineStageFlagBits wait_st[AV_NUM_DATA_POINTERS];
for (int i = 0; i < planes; i++)
for (int i = 0; i < planes; i++) {
wait_st[i] = VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT;
sem_sig_val[i] = frame->sem_value[i] + 1;
}
switch (pmode) {
case PREP_MODE_WRITE:
@ -1760,6 +1799,8 @@ static int prepare_frame(AVHWFramesContext *hwfc, VulkanExecCtx *ectx,
new_layout = VK_IMAGE_LAYOUT_GENERAL;
new_access = VK_ACCESS_MEMORY_READ_BIT | VK_ACCESS_MEMORY_WRITE_BIT;
dst_qf = VK_QUEUE_FAMILY_EXTERNAL_KHR;
s_timeline_sem_info.pWaitSemaphoreValues = frame->sem_value;
s_timeline_sem_info.waitSemaphoreValueCount = planes;
s_info.pWaitSemaphores = frame->sem;
s_info.pWaitDstStageMask = wait_st;
s_info.waitSemaphoreCount = planes;
@ -1794,7 +1835,7 @@ static int prepare_frame(AVHWFramesContext *hwfc, VulkanExecCtx *ectx,
VK_PIPELINE_STAGE_TRANSFER_BIT,
0, 0, NULL, 0, NULL, planes, img_bar);
return submit_exec_ctx(hwfc, ectx, &s_info, 0);
return submit_exec_ctx(hwfc, ectx, &s_info, frame, 0);
}
static inline void get_plane_wh(int *w, int *h, enum AVPixelFormat format,
@ -1833,9 +1874,16 @@ static int create_frame(AVHWFramesContext *hwfc, AVVkFrame **frame,
.handleTypes = VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_FD_BIT,
};
VkSemaphoreTypeCreateInfo sem_type_info = {
.sType = VK_STRUCTURE_TYPE_SEMAPHORE_TYPE_CREATE_INFO,
.pNext = p->extensions & EXT_EXTERNAL_FD_SEM ? &ext_sem_info : NULL,
.semaphoreType = VK_SEMAPHORE_TYPE_TIMELINE,
.initialValue = 0,
};
VkSemaphoreCreateInfo sem_spawn = {
.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO,
.pNext = p->extensions & EXT_EXTERNAL_FD_SEM ? &ext_sem_info : NULL,
.pNext = &sem_type_info,
};
AVVkFrame *f = av_vk_frame_alloc();
@ -1888,6 +1936,7 @@ static int create_frame(AVHWFramesContext *hwfc, AVVkFrame **frame,
f->layout[i] = create_info.initialLayout;
f->access[i] = 0x0;
f->sem_value[i] = 0;
}
f->flags = 0x0;
@ -2315,8 +2364,15 @@ static int vulkan_map_from_drm_frame_desc(AVHWFramesContext *hwfc, AVVkFrame **f
.handleTypes = htype,
};
VkSemaphoreTypeCreateInfo sem_type_info = {
.sType = VK_STRUCTURE_TYPE_SEMAPHORE_TYPE_CREATE_INFO,
.semaphoreType = VK_SEMAPHORE_TYPE_TIMELINE,
.initialValue = 1,
};
VkSemaphoreCreateInfo sem_spawn = {
.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO,
.pNext = &sem_type_info,
};
VkImageCreateInfo create_info = {
@ -2374,6 +2430,7 @@ static int vulkan_map_from_drm_frame_desc(AVHWFramesContext *hwfc, AVVkFrame **f
f->layout[i] = create_info.initialLayout;
f->access[i] = 0x0;
f->sem_value[i] = 0;
}
for (int i = 0; i < desc->nb_objects; i++) {
@ -3224,8 +3281,19 @@ static int transfer_image_buf(AVHWFramesContext *hwfc, const AVFrame *f,
VulkanExecCtx *ectx = to_buf ? &fp->download_ctx : &fp->upload_ctx;
VkCommandBuffer cmd_buf = get_buf_exec_ctx(hwfc, ectx);
uint64_t sem_signal_values[AV_NUM_DATA_POINTERS];
VkTimelineSemaphoreSubmitInfo s_timeline_sem_info = {
.sType = VK_STRUCTURE_TYPE_TIMELINE_SEMAPHORE_SUBMIT_INFO,
.pWaitSemaphoreValues = frame->sem_value,
.pSignalSemaphoreValues = sem_signal_values,
.waitSemaphoreValueCount = planes,
.signalSemaphoreValueCount = planes,
};
VkSubmitInfo s_info = {
.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO,
.pNext = &s_timeline_sem_info,
.pSignalSemaphores = frame->sem,
.pWaitSemaphores = frame->sem,
.pWaitDstStageMask = sem_wait_dst,
@ -3233,6 +3301,9 @@ static int transfer_image_buf(AVHWFramesContext *hwfc, const AVFrame *f,
.waitSemaphoreCount = planes,
};
for (int i = 0; i < planes; i++)
sem_signal_values[i] = frame->sem_value[i] + 1;
if ((err = wait_start_exec_ctx(hwfc, ectx)))
return err;
@ -3313,9 +3384,9 @@ static int transfer_image_buf(AVHWFramesContext *hwfc, const AVFrame *f,
}
if (ref && (err = add_buf_dep_exec_ctx(hwfc, ectx, bufs, planes)))
return err;
return submit_exec_ctx(hwfc, ectx, &s_info, !ref);
return submit_exec_ctx(hwfc, ectx, &s_info, frame, !ref);
} else {
return submit_exec_ctx(hwfc, ectx, &s_info, 1);
return submit_exec_ctx(hwfc, ectx, &s_info, frame, 1);
}
}

13
libavutil/hwcontext_vulkan.h
View File

@ -195,13 +195,22 @@ typedef struct AVVkFrame {
VkImageLayout layout[AV_NUM_DATA_POINTERS];
/**
* Synchronization semaphores. Must not be freed manually. Must be waited on
* and signalled at every queue submission.
* Synchronization timeline semaphores. Must not be freed manually.
* Must be waited on at every submission using the value in sem_value,
* and must be signalled at every submission, using an incremented value.
*
* Could be less than the amount of images: either one per VkDeviceMemory
* or one for the entire frame. All others will be set to VK_NULL_HANDLE.
*/
VkSemaphore sem[AV_NUM_DATA_POINTERS];
/**
* Up to date semaphore value at which each image becomes accessible.
* Clients must wait on this value when submitting a command queue,
* and increment it when signalling.
*/
uint64_t sem_value[AV_NUM_DATA_POINTERS];
/**
* Internal data.
*/