raylib-cs/Examples/textures/textures_to_image.cs

using Raylib;
using static Raylib.Raylib;

public partial class textures_to_image
{
    /*******************************************************************************************
    *
    *   raylib [textures] example - Retrieve image data from texture: GetTextureData() 
    *
    *   NOTE: Images are loaded in CPU memory (RAM); textures are loaded in GPU memory (VRAM)
    *
    *   This example has been created using raylib 1.3 (www.raylib.com)
    *   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
    *
    *   Copyright (c) 2015 Ramon Santamaria (@raysan5)
    *
    ********************************************************************************************/
    
    
    public static int Main()
    {
        // Initialization
        //--------------------------------------------------------------------------------------
        int screenWidth = 800;
        int screenHeight = 450;
    
        InitWindow(screenWidth, screenHeight, "raylib [textures] example - texture to image");
    
        // NOTE: Textures MUST be loaded after Window initialization (OpenGL context is required)
    
        Image image = LoadImage("resources/raylib_logo.png");  // Load image data into CPU memory (RAM)
        Texture2D texture = LoadTextureFromImage(image);       // Image converted to texture, GPU memory (RAM -> VRAM)
        UnloadImage(image);                                    // Unload image data from CPU memory (RAM)
        
        image = GetTextureData(texture);                       // Retrieve image data from GPU memory (VRAM -> RAM)
        UnloadTexture(texture);                                // Unload texture from GPU memory (VRAM)
        
        texture = LoadTextureFromImage(image);                 // Recreate texture from retrieved image data (RAM -> VRAM)
        UnloadImage(image);                                    // Unload retrieved image data from CPU memory (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;
    }    
}