void ChooseConfig (EGLDisplay display)
{
#if LOGGING
Log.Verbose ("AndroidGraphicsMode", "Requested graphics mode on display {7} with red {0} green {1} blue {2} alpha {3} depth {4} stencil {5} buffers {6}",
ColorFormat.Red, ColorFormat.Green, ColorFormat.Blue, ColorFormat.Alpha, Depth, Stencil, Buffers, display);
#endif
var egl = EGLContext.EGL.JavaCast<IEGL10> ();
try {
if (display == null)
display = egl.EglGetDisplay (EGL11.EglDefaultDisplay);
} catch {
throw EglException.GenerateException ("Failed to get default display", egl, null);
}
List<int> configSpec = new List<int> {
};
if (ColorFormat.Red > 0) {
configSpec.Add (EGL11.EglRedSize);
configSpec.Add (ColorFormat.Red);
}
if (ColorFormat.Green > 0) {
configSpec.Add (EGL11.EglGreenSize);
configSpec.Add (ColorFormat.Green);
}
if (ColorFormat.Blue > 0) {
configSpec.Add (EGL11.EglBlueSize);
configSpec.Add (ColorFormat.Blue);
}
if (ColorFormat.Alpha > 0) {
configSpec.Add (EGL11.EglAlphaSize);
configSpec.Add (ColorFormat.Alpha);
}
if (Depth > 0) {
configSpec.Add (EGL11.EglDepthSize);
configSpec.Add (Depth);
}
if (Stencil > 0) {
configSpec.Add (EGL11.EglStencilSize);
configSpec.Add (Stencil);
}
//http://code.google.com/p/gdc2011-android-opengl/source/browse/trunk/src/com/example/gdc11/MultisampleConfigChooser.java?r=5
if (Samples > 0) {
// Enable Multi Sampling if we can
configSpec.Add (EGL11.EglSampleBuffers);
configSpec.Add (1);
configSpec.Add (EGL11.EglSamples);
configSpec.Add (Samples);
}
if (Version > 1) {
configSpec.Add (EGL11.EglRenderableType);
configSpec.Add (4);
}
configSpec.Add (EGL11.EglNone);
int[] num_configs = new int[1];
if (!egl.EglGetConfigs (display, null, 0, num_configs) || num_configs[0] < 1) {
throw EglException.GenerateException ("Failed to retrieve GraphicsMode configurations", egl, null);
}
EGLConfig[] configs = new EGLConfig[1];
if (!egl.EglChooseConfig (display, configSpec.ToArray(), configs, configs.Length, num_configs)) {
Log.Warn ("AndroidGraphicsMode", "Failed to choose GraphicsMode with red {0} green {1} blue {2} alpha {3} depth {4} stencil {5} buffers {6}: egl error {7}. Falling back go lowest configuration available.",
ColorFormat.Red, ColorFormat.Green, ColorFormat.Blue, ColorFormat.Alpha, Depth, Stencil, Buffers, egl.EglGetError ());
configSpec = new List<int> {
EGL11.EglRedSize, 4,
EGL11.EglGreenSize, 4,
EGL11.EglBlueSize, 4,
EGL11.EglNone
};
if (!egl.EglChooseConfig (display, configSpec.ToArray(), configs, configs.Length, num_configs)) {
throw EglException.GenerateException ("Failed to find a valid GraphicsMode configuration", egl, null);
}
}
EGLConfig active_config = configs[0];
#if LOGGING
Log.Verbose ("AndroidGraphicsMode", "Checking selected config {0}", active_config);
#endif
if (active_config == null)
throw EglException.GenerateException ("Failed to find a valid GraphicsMode configuration", egl, null);
var r = GetAttrib (egl, display, active_config, EGL11.EglRedSize);
var g = GetAttrib (egl, display, active_config, EGL11.EglGreenSize);
var b = GetAttrib (egl, display, active_config, EGL11.EglBlueSize);
var a = GetAttrib (egl, display, active_config, EGL11.EglAlphaSize);
var depth = GetAttrib (egl, display, active_config, EGL11.EglDepthSize);
var stencil = GetAttrib (egl, display, active_config, EGL11.EglStencilSize);
var s = GetAttrib (egl, display, active_config, EGL11.EglSampleBuffers);
var samples = GetAttrib (egl, display, active_config, EGL11.EglSamples);
var bufs = GetAttrib (egl, display, active_config, EGL11.EglRenderBuffer);
var surfaceType = GetAttrib (egl, display, active_config, EGL11.EglSurfaceType);
#if LOGGING
Log.Verbose ("AndroidGraphicsMode", "Requested graphics mode with red {0} green {1} blue {2} alpha {3} depth {4} stencil {5} buffers {6} samples {7}",
ColorFormat.Red, ColorFormat.Green, ColorFormat.Blue, ColorFormat.Alpha, Depth, Stencil, Buffers, Samples);
#endif
this.Index = active_config.Handle;
this.ColorFormat = new ColorFormat (r, g, b, a);
this.Depth = depth;
this.Stencil = stencil;
this.Samples = s > 0 ? samples : 0;
this.Config = active_config;
this.Buffers = bufs;
this.PBufferSupported = (surfaceType & EGL11.EglPbufferBit) == EGL11.EglPbufferBit;
#if LOGGING
Log.Verbose ("AndroidGraphicsMode", "Selected graphics mode with red {0} green {1} blue {2} alpha {3} depth {4} stencil {5} buffers {6}, samples {7}",
ColorFormat.Red, ColorFormat.Green, ColorFormat.Blue, ColorFormat.Alpha, Depth, Stencil, Buffers, Samples);
#endif
}
/// <summary>
/// Creates an AndroidGraphicsMode instance, copying the values set in the mode parameter.
/// Passing null to the display parameter for lazy initialization is recommended.
/// </summary>
/// <param name="display">
/// A <see cref="T:Javax.Microedition.Khronos.Egl.EGLDisplay" /> with the display to use for creating the
/// <see cref="T:Javax.Microedition.Khronos.Egl.EGLConfig" /> that represents this graphics configuration in
/// the OpenGL space. Pass null for lazy initialization.
/// </param>
/// <param name="version">Requested OpenGL version (1 or 2)</param>
/// <param name="mode">GraphicsMode to copy values from.</param>
public AndroidGraphicsMode (EGLDisplay display, int version, GraphicsMode mode) :
this (display, version, mode.ColorFormat, mode.Depth, mode.Stencil, mode.Samples, mode.Buffers, mode.Stereo)
{
}
/// <summary>
/// Creates an AndroidGraphicsMode instance with the required settings.
/// Passing null to the display parameter for lazy initialization is recommended.
/// </summary>
/// <param name="display">
/// A <see cref="T:Javax.Microedition.Khronos.Egl.EGLDisplay" /> with the display to use for creating the
/// <see cref="T:Javax.Microedition.Khronos.Egl.EGLConfig" /> that represents this graphics configuration in
/// the OpenGL space. Pass null for lazy initialization.
/// </param>
/// <param name="version">Requested OpenGL version (1 or 2)</param>
/// <param name="color">The ColorFormat of the color buffer.</param>
/// <param name="depth">The number of bits in the depth buffer.</param>
/// <param name="stencil">The number of bits in the stencil buffer.</param>
/// <param name="samples">The number of samples for FSAA.</param>
/// <param name="stereo">Set to true for a GraphicsMode with stereographic capabilities.</param>
/// <param name="buffers">The number of render buffers. Typical values include one (single-), two (double-) or three (triple-buffering).</param>
public AndroidGraphicsMode (EGLDisplay display, int version, ColorFormat color, int depth, int stencil, int samples, int buffers, bool stereo)
{
this.ColorFormat = color;
this.Depth = depth;
this.Stencil = stencil;
this.Samples = samples;
this.AccumulatorFormat = color;
this.Buffers = buffers;
this.Stereo = stereo;
this.Version = version;
}
public void Initialize (EGLDisplay display, int version)
{
Version = version;
ChooseConfig (display);
}
int GetAttrib (IEGL10 egl, EGLDisplay display, EGLConfig config, int attrib)
{
int[] ret = new int [1];
try {
egl.EglGetConfigAttrib (display, config, attrib, ret);
} catch (Exception e) {
Log.Warn ("AndroidGraphicsMode", "EglGetConfigAttrib {0} threw exception {1}", attrib, e);
}
return ret[0];
}
public void TerminateDisplay ()
{
if (eglDisplay != null) {
IEGL10 egl = EGLContext.EGL.JavaCast<IEGL10> ();
if (!egl.EglTerminate (eglDisplay))
Log.Warn ("AndroidWindow", "Failed to terminate display {0}.", eglDisplay);
eglDisplay = null;
}
}
/// <summary>
/// </summary>
/// <param name="eglDisplay"> </param>
/// <param name="glConfig"> </param>
/// <param name="shareList"> </param>
/// <returns> </returns>
public EGLCONTEXT CreateNewContext( EGLDisplay eglDisplay, EGLConfig glConfig, EGLCONTEXT shareList )
{
var contexAttrs = new int[] { 1, 2, EGL10Consts.EglNone };
EGLCONTEXT context = null;
if ( eglDisplay == null )
{
context = EGLCONTEXT.EGL11.EglCreateContext( this._glDisplay, glConfig, shareList, contexAttrs );
}
else
{
context = EGLCONTEXT.EGL11.EglCreateContext( this._glDisplay, glConfig, null, contexAttrs );
}
if ( context == null )
{
throw new AxiomException( "Fail to create New context" );
}
return context;
}
public void InitializeDisplay ()
{
if (eglDisplay != null && eglDisplay != EGL10.EglNoDisplay)
return;
IEGL10 egl = EGLContext.EGL.JavaCast<IEGL10> ();
if (eglDisplay == null)
eglDisplay = egl.EglGetDisplay (EGL10.EglDefaultDisplay);
if (eglDisplay == EGL10.EglNoDisplay)
throw EglException.GenerateException ("EglGetDisplay == EGL10.EglNoDisplay", egl, null);
int[] version = new int[2];
if (!egl.EglInitialize (eglDisplay, version)) {
throw EglException.GenerateException ("EglInitialize", egl, null);
}
}
/// <summary>
/// </summary>
/// <param name="display"> </param>
/// <param name="win"> </param>
/// <returns> </returns>
protected EGLSurface CreateSurfaceFromWindow( EGLDisplay display, NativeWindowType win )
{
throw new NotImplementedException();
}
private void DestroyEGLContext()
{
// Assumes lockObject is locked
ExEnLog.WriteLine("ExEnAndroidSurfaceView.DestroyEGLContext Begin");
if(eglContext != null)
{
if(!egl.EglDestroyContext(eglDisplay, eglContext))
throw new ExEnSurfaceException(AddEGLError("Could not destroy EGL context"));
eglContext = null;
}
if(eglDisplay != null)
{
if(!egl.EglTerminate(eglDisplay))
throw new ExEnSurfaceException(AddEGLError("Could not terminate EGL connection"));
eglDisplay = null;
}
eglContextAvailable = false;
ExEnLog.WriteLine("ExEnAndroidSurfaceView.DestroyEGLContext End");
}
private void CreateEGLContext()
{
ExEnLog.WriteLine("ExEnAndroidSurfaceView.CreateEGLContext Begin");
// Assumes lockObject is locked
lostEglContext = false;
egl = EGLContext.EGL.JavaCast<IEGL10>();
eglDisplay = egl.EglGetDisplay(EGL10Consts.EglDefaultDisplay);
if(eglDisplay == EGL10Consts.EglNoDisplay)
throw new ExEnSurfaceException("Could not get EGL display");
int[] version = new int[2];
if(!egl.EglInitialize(eglDisplay, version))
throw new ExEnSurfaceException(AddEGLError("Could not initialize EGL display"));
ExEnLog.WriteLine("EGL Version: " + version[0] + "." + version[1]);
// TODO: allow GraphicsDeviceManager to specify a frame buffer configuration
// TODO: test this configuration works on many devices:
int[] configAttribs = new int[] {
//EGL10Consts.EglRedSize, 5,
//EGL10Consts.EglGreenSize, 6,
//EGL10Consts.EglBlueSize, 5,
//EGL10Consts.EglAlphaSize, 0,
//EGL10Consts.EglDepthSize, 4,
//EGL10Consts.EglStencilSize, 0,
EGL10Consts.EglNone };
EGLConfig[] configs = new EGLConfig[1];
int[] numConfigs = new int[1];
if(!egl.EglChooseConfig(eglDisplay, configAttribs, configs, 1, numConfigs))
throw new ExEnSurfaceException(AddEGLError("Could not get EGL config"));
if(numConfigs[0] == 0)
throw new ExEnSurfaceException("No valid EGL configs found");
eglConfig = configs[0];
const int EglContextClientVersion = 0x3098;
int[] contextAttribs = new int[] { EglContextClientVersion, 1, EGL10Consts.EglNone };
eglContext = egl.EglCreateContext(eglDisplay, eglConfig, EGL10Consts.EglNoContext, contextAttribs);
if(eglContext == null || eglContext == EGL10Consts.EglNoContext)
{
eglContext = null;
throw new ExEnSurfaceException(AddEGLError("Could not create EGL context"));
}
eglContextAvailable = true;
ExEnLog.WriteLine("ExEnAndroidSurfaceView.CreateEGLContext End");
}
public Javax.Microedition.Khronos.Egl.EGLConfig ChooseConfig(Javax.Microedition.Khronos.Egl.IEGL10 egl, Javax.Microedition.Khronos.Egl.EGLDisplay eglDisplay)
{
Carto.Utils.Log.Debug("ConfigChooser.ChooseConfig: Model: " + Android.OS.Build.Model + ", board: " + Android.OS.Build.Board + ", product: " + Android.OS.Build.Product);
for (int i = 0; i < ATTRIBUTE_TABLE.Length; i++)
{
int[] numConfigs = new int[] { 0 };
EGLConfig[] configs = new EGLConfig[1];
if (egl.EglChooseConfig(eglDisplay, ATTRIBUTE_TABLE[i], configs, 1, numConfigs))
{
if (numConfigs[0] > 0)
{
Carto.Utils.Log.Debug("ConfigChooser.ChooseConfig: Selected display configuration: " + i);
return(configs[0]);
}
}
}
return(null);
}