893130e6fe
Similar to fe76d8c946
Pull Request: https://projects.blender.org/blender/blender/pulls/119898
109 lines
3.9 KiB
C++
109 lines
3.9 KiB
C++
/* SPDX-FileCopyrightText: 2016 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 draw
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*/
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#pragma once
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#include "BLI_compiler_attrs.h"
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#include "BLI_sys_types.h"
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#include "GPU_batch.hh"
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#define MAX_INSTANCE_DATA_SIZE 64 /* Can be adjusted for more */
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#define DRW_BUFFER_VERTS_CHUNK 128
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struct GHash;
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struct GPUUniformAttrList;
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struct DRWInstanceData;
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struct DRWInstanceDataList;
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struct DRWSparseUniformBuf;
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/**
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* Return a pointer to the next instance data space.
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*/
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void *DRW_instance_data_next(DRWInstanceData *idata);
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DRWInstanceData *DRW_instance_data_request(DRWInstanceDataList *idatalist, uint attr_size);
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/**
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* This manager allows to distribute existing batches for instancing
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* attributes. This reduce the number of batches creation.
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* Querying a batch is done with a vertex format. This format should
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* be static so that its pointer never changes (because we are using
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* this pointer as identifier [we don't want to check the full format
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* that would be too slow]).
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*/
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blender::gpu::VertBuf *DRW_temp_buffer_request(DRWInstanceDataList *idatalist,
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GPUVertFormat *format,
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int *vert_len);
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/**
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* \note Does not return a valid drawable batch until DRW_instance_buffer_finish has run.
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* Initialization is delayed because instancer or geom could still not be initialized.
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*/
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blender::gpu::Batch *DRW_temp_batch_instance_request(DRWInstanceDataList *idatalist,
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blender::gpu::VertBuf *buf,
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blender::gpu::Batch *instancer,
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blender::gpu::Batch *geom);
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/**
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* \note Use only with buf allocated via DRW_temp_buffer_request.
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*/
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blender::gpu::Batch *DRW_temp_batch_request(DRWInstanceDataList *idatalist,
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blender::gpu::VertBuf *buf,
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GPUPrimType type);
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/**
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* Upload all instance data to the GPU as soon as possible.
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*/
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void DRW_instance_buffer_finish(DRWInstanceDataList *idatalist);
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void DRW_instance_data_list_reset(DRWInstanceDataList *idatalist);
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void DRW_instance_data_list_free_unused(DRWInstanceDataList *idatalist);
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void DRW_instance_data_list_resize(DRWInstanceDataList *idatalist);
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/* Sparse chunked UBO manager. */
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/**
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* Allocate a chunked UBO with the specified item and chunk size.
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*/
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DRWSparseUniformBuf *DRW_sparse_uniform_buffer_new(unsigned int item_size,
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unsigned int chunk_size);
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/**
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* Flush data from ordinary memory to UBOs.
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*/
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void DRW_sparse_uniform_buffer_flush(DRWSparseUniformBuf *buffer);
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/**
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* Clean all buffers and free unused ones.
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*/
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void DRW_sparse_uniform_buffer_clear(DRWSparseUniformBuf *buffer, bool free_all);
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/**
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* Frees the buffer.
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*/
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void DRW_sparse_uniform_buffer_free(DRWSparseUniformBuf *buffer);
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/**
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* Checks if the buffer contains any allocated chunks.
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*/
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bool DRW_sparse_uniform_buffer_is_empty(DRWSparseUniformBuf *buffer);
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/**
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* Bind the UBO for the given chunk, if present. A nullptr buffer pointer is handled as empty.
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*/
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void DRW_sparse_uniform_buffer_bind(DRWSparseUniformBuf *buffer, int chunk, int location);
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/**
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* Unbind the UBO for the given chunk, if present. A nullptr buffer pointer is handled as empty.
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*/
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void DRW_sparse_uniform_buffer_unbind(DRWSparseUniformBuf *buffer, int chunk);
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/**
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* Returns a pointer to the given item of the given chunk, allocating memory if necessary.
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*/
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void *DRW_sparse_uniform_buffer_ensure_item(DRWSparseUniformBuf *buffer, int chunk, int item);
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/* Uniform attribute UBO management. */
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GHash *DRW_uniform_attrs_pool_new();
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void DRW_uniform_attrs_pool_flush_all(GHash *table);
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void DRW_uniform_attrs_pool_clear_all(GHash *table);
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DRWSparseUniformBuf *DRW_uniform_attrs_pool_find_ubo(GHash *table, const GPUUniformAttrList *key);
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