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Retain GLUtil.maxTextureSize
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@ -5,50 +5,43 @@ import javax.microedition.khronos.egl.EGLConfig
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import javax.microedition.khronos.egl.EGLContext
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import kotlin.math.max
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class GLUtil private constructor() {
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companion object {
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// Safe minimum default size
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private const val IMAGE_MAX_BITMAP_DIMENSION = 2048
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object GLUtil {
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val maxTextureSize: Int by lazy {
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// Get EGL Display
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val egl = EGLContext.getEGL() as EGL10
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val display = egl.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY)
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val maxTextureSize: Int
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get() {
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// Get EGL Display
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val egl = EGLContext.getEGL() as EGL10
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val display = egl.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY)
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// Initialise
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val version = IntArray(2)
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egl.eglInitialize(display, version)
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// Initialise
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val version = IntArray(2)
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egl.eglInitialize(display, version)
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// Query total number of configurations
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val totalConfigurations = IntArray(1)
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egl.eglGetConfigs(display, null, 0, totalConfigurations)
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// Query total number of configurations
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val totalConfigurations = IntArray(1)
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egl.eglGetConfigs(display, null, 0, totalConfigurations)
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// Query actual list configurations
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val configurationsList = arrayOfNulls<EGLConfig>(totalConfigurations[0])
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egl.eglGetConfigs(display, configurationsList, totalConfigurations[0], totalConfigurations)
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// Query actual list configurations
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val configurationsList = arrayOfNulls<EGLConfig>(totalConfigurations[0])
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egl.eglGetConfigs(display, configurationsList, totalConfigurations[0], totalConfigurations)
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val textureSize = IntArray(1)
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var maximumTextureSize = 0
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val textureSize = IntArray(1)
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var maximumTextureSize = 0
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// Iterate through all the configurations to located the maximum texture size
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for (i in 0 until totalConfigurations[0]) {
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// Only need to check for width since opengl textures are always squared
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egl.eglGetConfigAttrib(display, configurationsList[i], EGL10.EGL_MAX_PBUFFER_WIDTH, textureSize)
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// Iterate through all the configurations to located the maximum texture size
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for (i in 0 until totalConfigurations[0]) {
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// Only need to check for width since opengl textures are always squared
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egl.eglGetConfigAttrib(display, configurationsList[i], EGL10.EGL_MAX_PBUFFER_WIDTH, textureSize)
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// Keep track of the maximum texture size
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if (maximumTextureSize < textureSize[0]) maximumTextureSize = textureSize[0]
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}
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// Keep track of the maximum texture size
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if (maximumTextureSize < textureSize[0]) maximumTextureSize = textureSize[0]
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}
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// Release
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egl.eglTerminate(display)
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// Release
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egl.eglTerminate(display)
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// Return largest texture size found, or default
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return max(maximumTextureSize, IMAGE_MAX_BITMAP_DIMENSION)
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}
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}
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init {
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throw InstantiationException("This class is not for instantiation")
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// Return largest texture size found, or default
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max(maximumTextureSize, IMAGE_MAX_BITMAP_DIMENSION)
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}
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}
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// Safe minimum default size
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private const val IMAGE_MAX_BITMAP_DIMENSION = 2048
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