Added new example: text drawing on image

examples/textures/textures_image_text.c

@@ -0,0 +1,83 @@
+/*******************************************************************************************
+*
+*   raylib [texture] example - Image text drawing using TTF generated spritefont
+*
+*   This example has been created using raylib 1.8 (www.raylib.com)
+*   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
+*
+*   Copyright (c) 2017 Ramon Santamaria (@raysan5)
+*
+********************************************************************************************/
+
+#include "raylib.h"
+
+int main()
+{
+    // Initialization
+    //--------------------------------------------------------------------------------------
+    int screenWidth = 800;
+    int screenHeight = 450;
+
+    InitWindow(screenWidth, screenHeight, "raylib [texture] example - image text drawing");
+    
+    // TTF SpriteFont loading with custom generation parameters
+    SpriteFont font = LoadSpriteFontEx("resources/KAISG.ttf", 64, 0, 0);
+    
+    Image parrots = LoadImage("resources/parrots.png"); // Load image in CPU memory (RAM)
+
+    // Draw over image using custom font
+    ImageDrawTextEx(&parrots, (Vector2){ 20, 20 }, font, "[Parrots font drawing]", font.baseSize, 0, WHITE);
+
+    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
+    
+    Vector2 position = { screenWidth/2 - texture.width/2, screenHeight/2 - texture.height/2 - 20 };
+    
+    bool showFont = false;
+
+    SetTargetFPS(60);
+    //--------------------------------------------------------------------------------------
+
+    // Main game loop
+    while (!WindowShouldClose())    // Detect window close button or ESC key
+    {
+        // Update
+        //----------------------------------------------------------------------------------
+        if (IsKeyDown(KEY_SPACE)) showFont = true;
+        else showFont = false;
+        //----------------------------------------------------------------------------------
+
+        // Draw
+        //----------------------------------------------------------------------------------
+        BeginDrawing();
+
+            ClearBackground(RAYWHITE);
+
+            if (!showFont)
+            {
+                // Draw texture with text already drawn inside
+                DrawTextureV(texture, position, WHITE);
+                
+                // Draw text directly using sprite font
+                DrawTextEx(font, "[Parrots font drawing]", (Vector2){ position.x + 20, 
+                           position.y + 20 + 280 }, font.baseSize, 0, WHITE);
+            }
+            else DrawTexture(font.texture, screenWidth/2 - font.texture.width/2, 50, BLACK);
+            
+            DrawText("PRESS SPACE to SEE USED SPRITEFONT ", 290, 420, 10, DARKGRAY);
+        
+        EndDrawing();
+        //----------------------------------------------------------------------------------
+    }
+
+    // De-Initialization
+    //--------------------------------------------------------------------------------------
+    UnloadTexture(texture);     // Texture unloading
+        
+    UnloadSpriteFont(font);     // Unload custom spritefont
+    
+    CloseWindow();              // Close window and OpenGL context
+    //--------------------------------------------------------------------------------------
+
+    return 0;
+}