e955c94ed3
Listing the "Blender Foundation" as copyright holder implied the Blender Foundation holds copyright to files which may include work from many developers. While keeping copyright on headers makes sense for isolated libraries, Blender's own code may be refactored or moved between files in a way that makes the per file copyright holders less meaningful. Copyright references to the "Blender Foundation" have been replaced with "Blender Authors", with the exception of `./extern/` since these this contains libraries which are more isolated, any changed to license headers there can be handled on a case-by-case basis. Some directories in `./intern/` have also been excluded: - `./intern/cycles/` it's own `AUTHORS` file is planned. - `./intern/opensubdiv/`. An "AUTHORS" file has been added, using the chromium projects authors file as a template. Design task: #110784 Ref !110783.
69 lines
1.4 KiB
C++
69 lines
1.4 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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#pragma once
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#include "MEM_guardedalloc.h"
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#include "gpu_index_buffer_private.hh"
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#include <epoxy/gl.h>
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namespace blender::gpu {
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class GLIndexBuf : public IndexBuf {
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friend class GLBatch;
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friend class GLDrawList;
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friend class GLShader; /* For compute shaders. */
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private:
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GLuint ibo_id_ = 0;
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public:
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~GLIndexBuf();
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void bind();
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void bind_as_ssbo(uint binding) override;
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void read(uint32_t *data) const override;
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void *offset_ptr(uint additional_vertex_offset) const
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{
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additional_vertex_offset += index_start_;
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if (index_type_ == GPU_INDEX_U32) {
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return reinterpret_cast<void *>(intptr_t(additional_vertex_offset) * sizeof(GLuint));
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}
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return reinterpret_cast<void *>(intptr_t(additional_vertex_offset) * sizeof(GLushort));
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}
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GLuint restart_index() const
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{
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return (index_type_ == GPU_INDEX_U16) ? 0xFFFFu : 0xFFFFFFFFu;
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}
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void upload_data() override;
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void update_sub(uint start, uint len, const void *data) override;
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private:
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bool is_active() const;
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void strip_restart_indices() override
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{
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/* No-op. */
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}
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MEM_CXX_CLASS_ALLOC_FUNCS("GLIndexBuf")
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};
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static inline GLenum to_gl(GPUIndexBufType type)
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{
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return (type == GPU_INDEX_U32) ? GL_UNSIGNED_INT : GL_UNSIGNED_SHORT;
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}
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} // namespace blender::gpu
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