aboutsummaryrefslogtreecommitdiff
path: root/examples/textures_image_loading.c
blob: c2929d9ce08774135ff722f8dca07111c5fd5054 (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
/*******************************************************************************************
*
*   raylib [textures] example - Image loading and texture creation
*
*   NOTE: Images are loaded in CPU memory (RAM); textures are loaded in GPU memory (VRAM)
*
*   This example has been created using raylib 1.1 (www.raylib.com)
*   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
*
*   Copyright (c) 2014 Ramon Santamaria (Ray San - raysan@raysanweb.com)
*
********************************************************************************************/

#include "raylib.h"

int main()
{    
    // Initialization
    //--------------------------------------------------------------------------------------
    int screenWidth = 800;
    int screenHeight = 450;

    InitWindow(screenWidth, screenHeight, "raylib [textures] example - image loading");
    
    // NOTE: Textures MUST be loaded after Window initialization (OpenGL context is required)

    Image img = LoadImage("resources/raylib_logo.png"); // Loaded in CPU memory (RAM)
    Texture2D texture = CreateTexture(img, false);      // Image converted to texture, GPU memory (VRAM)

    UnloadImage(img);   // Once image has been converted to texture and uploaded to VRAM, it can be unloaded from RAM
    //---------------------------------------------------------------------------------------
    
    // Main game loop
    while (!WindowShouldClose())    // Detect window close button or ESC key
    {
        // Update
        //----------------------------------------------------------------------------------
        // TODO: Update your variables here
        //----------------------------------------------------------------------------------
        
        // Draw
        //----------------------------------------------------------------------------------
        BeginDrawing();
        
            ClearBackground(RAYWHITE);
            
            DrawTexture(texture, screenWidth/2 - texture.width/2, screenHeight/2 - texture.height/2, WHITE);
            
            DrawText("this IS a texture loaded from an image!", 300, 370, 10, GRAY);
        
        EndDrawing();
        //----------------------------------------------------------------------------------
    }

    // De-Initialization
    //--------------------------------------------------------------------------------------
    UnloadTexture(texture);       // Texture unloading
    
    CloseWindow();                // Close window and OpenGL context
    //--------------------------------------------------------------------------------------
    
    return 0;
}