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
102
103
|
#include <asura-utils/Exceptions/Exception.h>
#include "../CoreConfig.h"
#include "Shader.h"
#include "Image.h"
#include "GfxDevice.h"
using namespace AEIO;
using namespace AEImage;
namespace_begin(AsuraEngine)
namespace_begin(Graphics)
Image::Image()
: m_Width(0)
, m_Height(0)
{
}
Image::~Image()
{
}
bool Image::Load(ImageData* imgData)
{
if (!imgData) return false;
if (m_TexID == 0)
{
glGenTextures(1, &m_TexID);
if (m_TexID == 0)
throw Exception("OpenGL glGenTextures failed.");
}
glBindTexture(GL_TEXTURE_2D, m_TexID);
imgData->Lock();
int width = imgData->width;
int height = imgData->height;
TextureFormat tf = ConvertColorFormat(imgData->format);
glTexImage2D(
GL_TEXTURE_2D
, 0
, tf.internalformat
, width, height
, 0
, tf.externalformat
, tf.type
, imgData->pixels
);
m_Width = imgData->width;
m_Height = imgData->height;
imgData->Unlock();
GLenum err = glGetError();
if (err != GL_NO_ERROR)
throw Exception("OpenGL glTexImage2D cause error, error code=%d", err);
glBindTexture(GL_TEXTURE_2D, 0);
return true;
}
bool Image::Load(ImageData* imgData, const AEMath::Vector2i& pos)
{
if (!imgData) return false;
glBindTexture(GL_TEXTURE_2D, m_TexID);
imgData->Lock();
int width = imgData->width;
int height = imgData->height;
TextureFormat tf = ConvertColorFormat(imgData->format);
glTexSubImage2D(
GL_TEXTURE_2D
, 0
, pos.x
, pos.y
, imgData->width
, imgData->height
, tf.externalformat
, tf.type
, imgData->pixels
);
imgData->Unlock();
GLenum err = glGetError();
if (err != GL_NO_ERROR)
throw Exception("OpenGL glTexSubImage2D cause error, error code=%d", err);
glBindTexture(GL_TEXTURE_2D, 0);
return true;
}
uint32 Image::GetWidth()
{
return m_Width;
}
uint32 Image::GetHeight()
{
return m_Height;
}
namespace_end
namespace_end
|
