textures_image_loading.c 2.6 KB

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  1. /*******************************************************************************************
  2. *
  3. * raylib [textures] example - Image loading and texture creation
  4. *
  5. * NOTE: Images are loaded in CPU memory (RAM); textures are loaded in GPU memory (VRAM)
  6. *
  7. * This example has been created using raylib 1.3 (www.raylib.com)
  8. * raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
  9. *
  10. * Copyright (c) 2015 Ramon Santamaria (@raysan5)
  11. *
  12. ********************************************************************************************/
  13. #include "raylib.h"
  14. int main(void)
  15. {
  16. // Initialization
  17. //--------------------------------------------------------------------------------------
  18. const int screenWidth = 800;
  19. const int screenHeight = 450;
  20. InitWindow(screenWidth, screenHeight, "raylib [textures] example - image loading");
  21. // NOTE: Textures MUST be loaded after Window initialization (OpenGL context is required)
  22. Image image = LoadImage("resources/raylib_logo.png"); // Loaded in CPU memory (RAM)
  23. Texture2D texture = LoadTextureFromImage(image); // Image converted to texture, GPU memory (VRAM)
  24. UnloadImage(image); // Once image has been converted to texture and uploaded to VRAM, it can be unloaded from RAM
  25. SetTargetFPS(60); // Set our game to run at 60 frames-per-second
  26. //---------------------------------------------------------------------------------------
  27. // Main game loop
  28. while (!WindowShouldClose()) // Detect window close button or ESC key
  29. {
  30. // Update
  31. //----------------------------------------------------------------------------------
  32. // TODO: Update your variables here
  33. //----------------------------------------------------------------------------------
  34. // Draw
  35. //----------------------------------------------------------------------------------
  36. BeginDrawing();
  37. ClearBackground(RAYWHITE);
  38. DrawTexture(texture, screenWidth/2 - texture.width/2, screenHeight/2 - texture.height/2, WHITE);
  39. DrawText("this IS a texture loaded from an image!", 300, 370, 10, GRAY);
  40. EndDrawing();
  41. //----------------------------------------------------------------------------------
  42. }
  43. // De-Initialization
  44. //--------------------------------------------------------------------------------------
  45. UnloadTexture(texture); // Texture unloading
  46. CloseWindow(); // Close window and OpenGL context
  47. //--------------------------------------------------------------------------------------
  48. return 0;
  49. }