Clément Foucault
3a6e981bcd
This should avoid confusion about what is a class and what is an opaque pointer.
87 lines
2.4 KiB
C++
87 lines
2.4 KiB
C++
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2020 Blender Foundation.
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* All rights reserved.
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*/
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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.h"
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#include "GPU_glew.h"
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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(GPUBatch *batch, int i_first, int i_count) override;
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void submit(void) override;
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private:
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void init(void);
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/** Batch for which we are recording commands for. */
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GPUBatch *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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