Library/gl_texture.h at master · WHKnightZ/Library · GitHub

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
#ifndef GL_TEXTURE_H
#define GL_TEXTURE_H

//#include "process_image.h"
//#include <GL/glut.h>

typedef struct Rect {
    float Left, Right, Bottom, Top;
} Rect;

void Load_Texture(Image* img, const char* path) {
    Load_Png(&img->img, &img->w, &img->h, path);
}

void Load_Texture_Swap(Image* img, const char* path) {
    Load_Png_Swap(&img->img, &img->w, &img->h, path);
}

void Map_Texture(Image* img) {
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, img->w, img->h, 0, GL_RGBA, GL_UNSIGNED_BYTE, img->img);
}

void Draw_Rect(Rect *Rct) {
    glBegin(GL_POLYGON);
    glTexCoord2f(0.0f, 0.0f);
    glVertex2f((int)Rct->Left, (int)Rct->Bottom);
    glTexCoord2f(1.0f, 0.0f);
    glVertex2f((int)Rct->Right, (int)Rct->Bottom);
    glTexCoord2f(1.0f, 1.0f);
    glVertex2f((int)Rct->Right, (int)Rct->Top);
    glTexCoord2f(0.0f, 1.0f);
    glVertex2f((int)Rct->Left, (int)Rct->Top);
    glEnd();
}

//void Draw_Rect(Rect *Rct) {
//    glBegin(GL_POLYGON);
//    glTexCoord2f(0.0f, 0.0f);
//    glVertex2f(Rct->Left, Rct->Bottom);
//    glTexCoord2f(1.0f, 0.0f);
//    glVertex2f(Rct->Right, Rct->Bottom);
//    glTexCoord2f(1.0f, 1.0f);
//    glVertex2f(Rct->Right, Rct->Top);
//    glTexCoord2f(0.0f, 1.0f);
//    glVertex2f(Rct->Left, Rct->Top);
//    glEnd();
//}

#endif