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