mirror of
https://github.com/raysan5/raylib.git
synced 2025-10-26 12:27:01 +00:00
97 lines
4.4 KiB
C
97 lines
4.4 KiB
C
/*******************************************************************************************
|
|
*
|
|
* raylib [textures] example - Image loading and drawing on it
|
|
*
|
|
* NOTE: Images are loaded in CPU memory (RAM); textures are loaded in GPU memory (VRAM)
|
|
*
|
|
* Example originally created with raylib 1.4, last time updated with raylib 1.4
|
|
*
|
|
* Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,
|
|
* BSD-like license that allows static linking with closed source software
|
|
*
|
|
* Copyright (c) 2016-2024 Ramon Santamaria (@raysan5)
|
|
*
|
|
********************************************************************************************/
|
|
|
|
#include "raylib.h"
|
|
|
|
//------------------------------------------------------------------------------------
|
|
// Program main entry point
|
|
//------------------------------------------------------------------------------------
|
|
int main(void)
|
|
{
|
|
// Initialization
|
|
//--------------------------------------------------------------------------------------
|
|
const int screenWidth = 800;
|
|
const int screenHeight = 450;
|
|
|
|
InitWindow(screenWidth, screenHeight, "raylib [textures] example - image drawing");
|
|
|
|
// NOTE: Textures MUST be loaded after Window initialization (OpenGL context is required)
|
|
|
|
Image cat = LoadImage("resources/cat.png"); // Load image in CPU memory (RAM)
|
|
ImageCrop(&cat, (Rectangle){ 100, 10, 280, 380 }); // Crop an image piece
|
|
ImageFlipHorizontal(&cat); // Flip cropped image horizontally
|
|
ImageResize(&cat, 150, 200); // Resize flipped-cropped image
|
|
|
|
Image parrots = LoadImage("resources/parrots.png"); // Load image in CPU memory (RAM)
|
|
|
|
// Draw one image over the other with a scaling of 1.5f
|
|
ImageDraw(&parrots, cat, (Rectangle){ 0, 0, (float)cat.width, (float)cat.height }, (Rectangle){ 30, 40, cat.width*1.5f, cat.height*1.5f }, WHITE);
|
|
ImageCrop(&parrots, (Rectangle){ 0, 50, (float)parrots.width, (float)parrots.height - 100 }); // Crop resulting image
|
|
|
|
// Draw on the image with a few image draw methods
|
|
ImageDrawPixel(&parrots, 10, 10, RAYWHITE);
|
|
ImageDrawCircleLines(&parrots, 10, 10, 5, RAYWHITE);
|
|
ImageDrawRectangle(&parrots, 5, 20, 10, 10, RAYWHITE);
|
|
|
|
UnloadImage(cat); // Unload image from RAM
|
|
|
|
// Load custom font for drawing on image
|
|
Font font = LoadFont("resources/custom_jupiter_crash.png");
|
|
|
|
// Draw over image using custom font
|
|
ImageDrawTextEx(&parrots, font, "PARROTS & CAT", (Vector2){ 300, 230 }, (float)font.baseSize, -2, WHITE);
|
|
|
|
UnloadFont(font); // Unload custom font (already drawn used on image)
|
|
|
|
Texture2D texture = LoadTextureFromImage(parrots); // Image converted to texture, uploaded to GPU memory (VRAM)
|
|
UnloadImage(parrots); // Once image has been converted to texture and uploaded to VRAM, it can be unloaded from RAM
|
|
|
|
SetTargetFPS(60);
|
|
//---------------------------------------------------------------------------------------
|
|
|
|
// 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 - 40, WHITE);
|
|
DrawRectangleLines(screenWidth/2 - texture.width/2, screenHeight/2 - texture.height/2 - 40, texture.width, texture.height, DARKGRAY);
|
|
|
|
DrawText("We are drawing only one texture from various images composed!", 240, 350, 10, DARKGRAY);
|
|
DrawText("Source images have been cropped, scaled, flipped and copied one over the other.", 190, 370, 10, DARKGRAY);
|
|
|
|
EndDrawing();
|
|
//----------------------------------------------------------------------------------
|
|
}
|
|
|
|
// De-Initialization
|
|
//--------------------------------------------------------------------------------------
|
|
UnloadTexture(texture); // Texture unloading
|
|
|
|
CloseWindow(); // Close window and OpenGL context
|
|
//--------------------------------------------------------------------------------------
|
|
|
|
return 0;
|
|
}
|