blob: e2bf6cd00e845e57daf19f55c115c04ccbb62f0a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
/*
* 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:
/** OpenGL buffer handle. Init on first upload. Immutable after that. */
GLuint vbo_id_ = 0;
/** Size on the GPU. */
size_t vbo_size_ = 0;
public:
void bind(void);
void update_sub(uint start, uint len, void *data) override;
protected:
void acquire_data(void) override;
void resize_data(void) override;
void release_data(void) override;
void upload_data(void) override;
void duplicate_data(VertBuf *dst) override;
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
|
