GPU: StorageBuf: Add method to clear the buffer in place.

This is a faster way to clear a buffer instead of reuploading new data.
It is equivalent to `memset` and runs directly on the GPU.

This is better to clear huge buffers and to avoid the sync cost of data upload.

1 files changed, 7 insertions, 0 deletions

diff --git a/source/blender/gpu/GPU_storage_buffer.h b/source/blender/gpu/GPU_storage_buffer.h
index 930b6a1012b..1478d490e23 100644
--- a/source/blender/gpu/GPU_storage_buffer.h
+++ b/source/blender/gpu/GPU_storage_buffer.h
@@ -13,6 +13,7 @@
 
 #pragma once
 
+#include "GPU_texture.h"
 #include "GPU_vertex_buffer.h"
 
 #ifdef __cplusplus
@@ -40,6 +41,12 @@ void GPU_storagebuf_bind(GPUStorageBuf *ssbo, int slot);
 void GPU_storagebuf_unbind(GPUStorageBuf *ssbo);
 void GPU_storagebuf_unbind_all(void);
 
+void GPU_storagebuf_clear(GPUStorageBuf *ssbo,
+                          eGPUTextureFormat internal_format,
+                          eGPUDataFormat data_format,
+                          void *data);
+void GPU_storagebuf_clear_to_zero(GPUStorageBuf *ssbo);
+
 #ifdef __cplusplus
 }
 #endif