66 lines
2.1 KiB
C++
66 lines
2.1 KiB
C++
/* SPDX-FileCopyrightText: 2005 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup gpu
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*
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* Uniform buffers API. Used to handle many uniforms update at once.
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* Make sure that the data structure is compatible with what the implementation expect.
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* (see "7.6.2.2 Standard Uniform Block Layout" from the OpenGL spec for more info about std140
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* layout)
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* Rule of thumb: Padding to 16bytes, don't use vec3, don't use arrays of anything that is not vec4
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* aligned.
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*/
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#pragma once
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#include "BLI_sys_types.h"
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struct ListBase;
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namespace blender::gpu {
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class UniformBuf;
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} // namespace blender::gpu
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blender::gpu::UniformBuf *GPU_uniformbuf_create_ex(size_t size,
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const void *data,
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const char *name);
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/**
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* Create UBO from inputs list.
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*
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* \param inputs: ListBase of #BLI_genericNodeN(#GPUInput).
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* \return nullptr if failed to create or if `inputs` is empty.
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*/
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blender::gpu::UniformBuf *GPU_uniformbuf_create_from_list(ListBase *inputs, const char *name);
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#define GPU_uniformbuf_create(size) GPU_uniformbuf_create_ex(size, nullptr, __func__);
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void GPU_uniformbuf_free(blender::gpu::UniformBuf *ubo);
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void GPU_uniformbuf_update(blender::gpu::UniformBuf *ubo, const void *data);
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void GPU_uniformbuf_bind(blender::gpu::UniformBuf *ubo, int slot);
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void GPU_uniformbuf_bind_as_ssbo(blender::gpu::UniformBuf *ubo, int slot);
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void GPU_uniformbuf_unbind(blender::gpu::UniformBuf *ubo);
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/**
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* Resets the internal slot usage tracking. But there is no guarantee that
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* this actually undo the bindings for the next draw call. Only has effect when G_DEBUG_GPU is set.
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*/
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void GPU_uniformbuf_debug_unbind_all();
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void GPU_uniformbuf_clear_to_zero(blender::gpu::UniformBuf *ubo);
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#define GPU_UBO_BLOCK_NAME "node_tree"
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#define GPU_ATTRIBUTE_UBO_BLOCK_NAME "unf_attrs"
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#define GPU_LAYER_ATTRIBUTE_UBO_BLOCK_NAME "drw_layer_attrs"
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constexpr static int GPU_NODE_TREE_UBO_SLOT = 0;
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#define GPU_UBO_FREE_SAFE(ubo) \
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do { \
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if (ubo != nullptr) { \
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GPU_uniformbuf_free(ubo); \
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ubo = nullptr; \
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} \
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} while (0)
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