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/*
* 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 "glew-mx.h"
#include "gpu_vertex_buffer_private.hh"
namespace blender {
namespace gpu {
class GLVertBuf : public VertBuf {
friend class GLTexture; /* For buffer texture. */
friend class GLShader; /* For transform feedback. */
private:
// GLuint vbo_id_ = 0;
/** Size on the GPU. */
// size_t vbo_size_ = 0;
public:
void bind(void);
protected:
uchar *acquire_data(void);
uchar *resize_data(void);
void release_data(void);
void upload_data(void);
void duplicate_data(VertBuf *dst);
MEM_CXX_CLASS_ALLOC_FUNCS("GLVertBuf");
};
static inline GLenum to_gl(GPUUsageType type)
{
switch (type) {
case GPU_USAGE_STREAM:
return GL_STREAM_DRAW;
case GPU_USAGE_DYNAMIC:
return GL_DYNAMIC_DRAW;
case GPU_USAGE_STATIC:
return GL_STATIC_DRAW;
default:
BLI_assert(0);
return GL_STATIC_DRAW;
}
}
static inline GLenum to_gl(GPUVertCompType type)
{
switch (type) {
case GPU_COMP_I8:
return GL_BYTE;
case GPU_COMP_U8:
return GL_UNSIGNED_BYTE;
case GPU_COMP_I16:
return GL_SHORT;
case GPU_COMP_U16:
return GL_UNSIGNED_SHORT;
case GPU_COMP_I32:
return GL_INT;
case GPU_COMP_U32:
return GL_UNSIGNED_INT;
case GPU_COMP_F32:
return GL_FLOAT;
case GPU_COMP_I10:
return GL_INT_2_10_10_10_REV;
default:
BLI_assert(0);
return GL_FLOAT;
}
}
} // namespace gpu
} // namespace blender
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