diff options
Diffstat (limited to 'source/blender/gpu/opengl/gl_index_buffer.hh')
-rw-r--r-- | source/blender/gpu/opengl/gl_index_buffer.hh | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/source/blender/gpu/opengl/gl_index_buffer.hh b/source/blender/gpu/opengl/gl_index_buffer.hh new file mode 100644 index 00000000000..b84934bb77f --- /dev/null +++ b/source/blender/gpu/opengl/gl_index_buffer.hh @@ -0,0 +1,68 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2020 Blender Foundation. + * All rights reserved. + */ + +/** \file + * \ingroup gpu + */ + +#pragma once + +#include "MEM_guardedalloc.h" + +#include "gpu_index_buffer_private.hh" + +#include "glew-mx.h" + +namespace blender::gpu { + +class GLIndexBuf : public IndexBuf { + friend class GLBatch; + friend class GLDrawList; + + private: + GLuint ibo_id_ = 0; + + public: + ~GLIndexBuf(); + + void bind(void); + + void *offset_ptr(uint additional_vertex_offset) const + { + additional_vertex_offset += index_start_; + if (index_type_ == GPU_INDEX_U32) { + return (GLuint *)0 + additional_vertex_offset; + } + return (GLushort *)0 + additional_vertex_offset; + } + + GLuint restart_index(void) const + { + return (index_type_ == GPU_INDEX_U16) ? 0xFFFFu : 0xFFFFFFFFu; + } + + MEM_CXX_CLASS_ALLOC_FUNCS("GLIndexBuf") +}; + +static inline GLenum to_gl(GPUIndexBufType type) +{ + return (type == GPU_INDEX_U32) ? GL_UNSIGNED_INT : GL_UNSIGNED_SHORT; +} + +} // namespace blender::gpu |