893130e6fe
Similar to fe76d8c946
Pull Request: https://projects.blender.org/blender/blender/pulls/119898
71 lines
1.6 KiB
C++
71 lines
1.6 KiB
C++
/* SPDX-FileCopyrightText: 2020 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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* Implementation of Multi Draw Indirect using OpenGL.
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* Fallback if the needed extensions are not supported.
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*/
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#pragma once
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#include "MEM_guardedalloc.h"
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#include "BLI_sys_types.h"
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#include "GPU_batch.hh"
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#include "gpu_drawlist_private.hh"
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#include "gl_context.hh"
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namespace blender {
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namespace gpu {
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/**
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* Implementation of Multi Draw Indirect using OpenGL.
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*/
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class GLDrawList : public DrawList {
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public:
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GLDrawList(int length);
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~GLDrawList();
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void append(Batch *batch, int i_first, int i_count) override;
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void submit() override;
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private:
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void init();
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/** Batch for which we are recording commands for. */
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GLBatch *batch_;
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/** Mapped memory bounds. */
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GLbyte *data_;
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/** Length of the mapped buffer (in byte). */
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GLsizeiptr data_size_;
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/** Current offset inside the mapped buffer (in byte). */
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GLintptr command_offset_;
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/** Current number of command recorded inside the mapped buffer. */
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uint command_len_;
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/** Is UINT_MAX if not drawing indexed geom. Also Avoid dereferencing batch. */
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GLuint base_index_;
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/** Also Avoid dereferencing batch. */
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GLuint v_first_, v_count_;
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/** GL Indirect Buffer id. 0 means MultiDrawIndirect is not supported/enabled. */
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GLuint buffer_id_;
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/** Length of whole the buffer (in byte). */
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GLsizeiptr buffer_size_;
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/** Offset of `data_` inside the whole buffer (in byte). */
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GLintptr data_offset_;
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/** To free the buffer_id_. */
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GLContext *context_;
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MEM_CXX_CLASS_ALLOC_FUNCS("GLDrawList");
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};
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} // namespace gpu
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} // namespace blender
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