Jeroen Bakker
af5a115f65
The previous API for clearing storage buffers was following the OpenGL api. OpenGL has many options to support for data conversions, striding and sizzling. Metal and Vulkan don't have these features and we have to deal it ourselves. Blender internally only uses a tiny subset for what is possible in OpenGL. Making the current API to difficult to implement on our future platforms as we had to implement all cases, most even not used at all. By changing the API we make future development easier as we only need to implement what we are actually using. **New API** `GPU_storagebuf_clear(GPUStorageBuf* ssbo, uint32_t clear_value)` Related issue: #105492 Pull Request: blender/blender#105521
114 lines
2.3 KiB
C++
114 lines
2.3 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Copyright 2022 Blender Foundation. All rights reserved. */
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/** \file
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* \ingroup gpu
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*/
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#include "MEM_guardedalloc.h"
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#include <cstring>
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#include "BLI_blenlib.h"
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#include "BLI_math_base.h"
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#include "gpu_backend.hh"
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#include "GPU_material.h"
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#include "GPU_vertex_buffer.h" /* For GPUUsageType. */
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#include "GPU_storage_buffer.h"
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#include "gpu_storage_buffer_private.hh"
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#include "gpu_vertex_buffer_private.hh"
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/* -------------------------------------------------------------------- */
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/** \name Creation & Deletion
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* \{ */
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namespace blender::gpu {
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StorageBuf::StorageBuf(size_t size, const char *name)
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{
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/* Make sure that UBO is padded to size of vec4 */
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BLI_assert((size % 16) == 0);
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size_in_bytes_ = size;
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BLI_strncpy(name_, name, sizeof(name_));
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}
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StorageBuf::~StorageBuf()
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{
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MEM_SAFE_FREE(data_);
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}
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} // namespace blender::gpu
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/** \} */
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/* -------------------------------------------------------------------- */
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/** \name C-API
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* \{ */
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using namespace blender::gpu;
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GPUStorageBuf *GPU_storagebuf_create_ex(size_t size,
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const void *data,
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GPUUsageType usage,
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const char *name)
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{
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StorageBuf *ssbo = GPUBackend::get()->storagebuf_alloc(size, usage, name);
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/* Direct init. */
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if (data != nullptr) {
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ssbo->update(data);
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}
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return wrap(ssbo);
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}
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void GPU_storagebuf_free(GPUStorageBuf *ssbo)
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{
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delete unwrap(ssbo);
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}
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void GPU_storagebuf_update(GPUStorageBuf *ssbo, const void *data)
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{
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unwrap(ssbo)->update(data);
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}
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void GPU_storagebuf_bind(GPUStorageBuf *ssbo, int slot)
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{
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unwrap(ssbo)->bind(slot);
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}
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void GPU_storagebuf_unbind(GPUStorageBuf *ssbo)
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{
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unwrap(ssbo)->unbind();
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}
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void GPU_storagebuf_unbind_all()
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{
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/* FIXME */
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}
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void GPU_storagebuf_clear_to_zero(GPUStorageBuf *ssbo)
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{
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GPU_storagebuf_clear(ssbo, 0);
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}
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void GPU_storagebuf_clear(GPUStorageBuf *ssbo, uint32_t clear_value)
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{
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unwrap(ssbo)->clear(clear_value);
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}
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void GPU_storagebuf_copy_sub_from_vertbuf(
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GPUStorageBuf *ssbo, GPUVertBuf *src, uint dst_offset, uint src_offset, uint copy_size)
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{
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unwrap(ssbo)->copy_sub(unwrap(src), dst_offset, src_offset, copy_size);
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}
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void GPU_storagebuf_read(GPUStorageBuf *ssbo, void *data)
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{
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unwrap(ssbo)->read(data);
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}
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/** \} */
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