Initial commit

examples/textures/raw_data/main.go

@@ -0,0 +1,66 @@
+package main
+
+import (
+	"github.com/gen2brain/raylib-go/raylib"
+)
+
+func main() {
+	screenWidth := int32(800)
+	screenHeight := int32(450)
+
+	raylib.InitWindow(screenWidth, screenHeight, "raylib [textures] example - texture from raw data")
+
+	// NOTE: Textures MUST be loaded after Window initialization (OpenGL context is required)
+
+	// Load RAW image data (512x512, 32bit RGBA, no file header)
+	sonicRaw := raylib.LoadImageRaw("texture_formats/sonic_R8G8B8A8.raw", 512, 512, raylib.UncompressedR8g8b8a8, 0)
+	sonic := raylib.LoadTextureFromImage(sonicRaw) // Upload CPU (RAM) image to GPU (VRAM)
+	raylib.UnloadImage(sonicRaw)                   // Unload CPU (RAM) image data
+
+	// Generate a checked texture by code (1024x1024 pixels)
+	width := 1024
+	height := 1024
+
+	// Dynamic memory allocation to store pixels data (Color type)
+	pixels := make([]raylib.Color, width*height)
+
+	for y := 0; y < height; y++ {
+		for x := 0; x < width; x++ {
+			if ((x/32+y/32)/1)%2 == 0 {
+				pixels[y*height+x] = raylib.DarkBlue
+			} else {
+				pixels[y*height+x] = raylib.SkyBlue
+			}
+		}
+	}
+
+	// Load pixels data into an image structure and create texture
+	checkedIm := raylib.LoadImageEx(pixels, int32(width), int32(height))
+	checked := raylib.LoadTextureFromImage(checkedIm)
+	raylib.UnloadImage(checkedIm) // Unload CPU (RAM) image data
+
+	// Dynamic memory must be freed after using it
+	pixels = nil // Unload CPU (RAM) pixels data
+
+	raylib.SetTargetFPS(60)
+
+	for !raylib.WindowShouldClose() {
+		raylib.BeginDrawing()
+
+		raylib.ClearBackground(raylib.RayWhite)
+
+		raylib.DrawTexture(checked, screenWidth/2-checked.Width/2, screenHeight/2-checked.Height/2, raylib.Fade(raylib.White, 0.3))
+		raylib.DrawTexture(sonic, 330, -20, raylib.White)
+
+		raylib.DrawText("CHECKED TEXTURE ", 84, 100, 30, raylib.DarkBlue)
+		raylib.DrawText("GENERATED by CODE", 72, 164, 30, raylib.DarkBlue)
+		raylib.DrawText("and RAW IMAGE LOADING", 46, 226, 30, raylib.DarkBlue)
+
+		raylib.EndDrawing()
+	}
+
+	raylib.UnloadTexture(sonic)   // Texture unloading
+	raylib.UnloadTexture(checked) // Texture unloading
+
+	raylib.CloseWindow()
+}