raylib/examples/textures_image_loading.c
2015-01-02 20:58:06 +01:00

63 lines
2.5 KiB
C

/*******************************************************************************************
*
* 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 = LoadTextureFromImage(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;
}