vulkan_ffv1: improve buffer barrier correctness for slice state

This is likely a nanooptimization, but its more correct.

Lynne committed 1 year ago

Commit 694ebe81 parent 6111aef1 file · +2 −3Browse files

Unified · Split

libavcodec/vulkan_ffv1.c+2−3

@@ -484,8 +484,7 @@ static int vk_ffv1_end_frame(AVCodecContext *avctx) · 483 unmodified lines
484	484	.srcStageMask = slice_state->stage,
485	485	.dstStageMask = VK_PIPELINE_STAGE_2_COMPUTE_SHADER_BIT,
486	486	.srcAccessMask = slice_state->access,
487		− .dstAccessMask = VK_ACCESS_2_SHADER_STORAGE_READ_BIT \|
488		− VK_ACCESS_2_SHADER_STORAGE_WRITE_BIT,
	487	+ .dstAccessMask = VK_ACCESS_2_SHADER_STORAGE_READ_BIT,
489	488	.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
490	489	.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
491	490	.buffer = slice_state->buf,
@@ -534,7 +533,7 @@ static int vk_ffv1_end_frame(AVCodecContext *avctx) · 42 unmodified lines
534	533	.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
535	534	.buffer = slice_state->buf,
536	535	.offset = fp->slice_data_size*f->slice_count,
537		− .size = slice_state->size - fp->slice_data_size*f->slice_count,
	536	+ .size = f->slice_count*(fp->slice_state_size - fp->slice_data_size),
538	537	};
539	538
540	539	/* Input frame barrier */