forked from baldurk/renderdoc
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathgl_resources.cpp
More file actions
97 lines (90 loc) · 2.78 KB
/
gl_resources.cpp
File metadata and controls
97 lines (90 loc) · 2.78 KB
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
/******************************************************************************
* The MIT License (MIT)
*
* Copyright (c) 2014 Crytek
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
#include "gl_resources.h"
size_t GetByteSize(GLsizei w, GLsizei h, GLsizei d, GLenum format, GLenum type, int level, int align)
{
size_t elemSize = 0;
switch(type)
{
case eGL_UNSIGNED_BYTE:
case eGL_BYTE:
elemSize = 1;
break;
case eGL_UNSIGNED_SHORT:
case eGL_SHORT:
elemSize = 2;
break;
case eGL_UNSIGNED_INT:
case eGL_INT:
case eGL_FLOAT:
elemSize = 4;
break;
case eGL_UNSIGNED_BYTE_3_3_2:
case eGL_UNSIGNED_BYTE_2_3_3_REV:
return w*h*d;
case eGL_UNSIGNED_SHORT_5_6_5:
case eGL_UNSIGNED_SHORT_5_6_5_REV:
case eGL_UNSIGNED_SHORT_4_4_4_4:
case eGL_UNSIGNED_SHORT_4_4_4_4_REV:
case eGL_UNSIGNED_SHORT_5_5_5_1:
case eGL_UNSIGNED_SHORT_1_5_5_5_REV:
return w*h*d*2;
case eGL_UNSIGNED_INT_8_8_8_8:
case eGL_UNSIGNED_INT_8_8_8_8_REV:
case eGL_UNSIGNED_INT_10_10_10_2:
case eGL_UNSIGNED_INT_2_10_10_10_REV:
return w*h*d*4;
default:
RDCERR("Unhandled Byte Size type %d!", type);
break;
}
switch(format)
{
case eGL_RED:
case eGL_RED_INTEGER:
case eGL_GREEN:
case eGL_GREEN_INTEGER:
case eGL_BLUE:
case eGL_BLUE_INTEGER:
return w*h*d*elemSize;
case eGL_RG:
case eGL_RG_INTEGER:
return w*h*d*elemSize*2;
case eGL_RGB:
case eGL_RGB_INTEGER:
case eGL_BGR:
case eGL_BGR_INTEGER:
return w*h*d*elemSize*3;
case eGL_RGBA:
case eGL_RGBA_INTEGER:
case eGL_BGRA:
case eGL_BGRA_INTEGER:
return w*h*d*elemSize*4;
default:
RDCERR("Unhandled Byte Size format %d!", format);
break;
}
RDCERR("Unhandled Byte Size case!");
return 0;
}