package roll_credits

import org.openrndr.application
import org.openrndr.color.*
import org.openrndr.draw.*
import org.openrndr.math.IntVector2
import phenax.utils.*

fun main() = application {
  recordDuration(5.seconds())

  if (captureEnabled) {
    configure {
      width = 1920
      height = 1080
      windowResizable = false
    }
  } else {
    configure {
      width = 640
      height = 360
      windowResizable = false
    }
  }

  oliveProgram {
    val enableAntialiasing = captureEnabled
    val shaderLocalSize = IntVector2(8, 8)

    val cs by liveComputeShader("roll_credits")

    val scale = if (enableAntialiasing) 2 else 1
    val outputBuffer = colorBuffer(scale * width, scale * height, type = ColorType.UINT8)

    extend {
      cs.uniform("seconds", seconds)
      cs.image("output_image", 0, outputBuffer.imageBinding(0, ImageAccess.WRITE))
      cs.execute(
              (outputBuffer.width + shaderLocalSize.x - 1) / shaderLocalSize.x,
              (outputBuffer.height + shaderLocalSize.y - 1) / shaderLocalSize.y,
              1
      )
      drawer.image(outputBuffer, 0.0, 0.0, width.toDouble(), height.toDouble())
    }
  }
}