//public synchronized void update(final GL10 pGL) {
public void Update(GL10 pGL)
{
lock (_methodLock)
{
//final ArrayList<Letter> lettersPendingToBeDrawnToTexture = this.mLettersPendingToBeDrawnToTexture;
List <Letter> lettersPendingToBeDrawnToTexture = this.mLettersPendingToBeDrawnToTexture;
if (lettersPendingToBeDrawnToTexture.Count > 0)
{
int hardwareTextureID = this.mTexture.GetHardwareTextureID();
float textureWidth = this.mTextureWidth;
float textureHeight = this.mTextureHeight;
for (int i = lettersPendingToBeDrawnToTexture.Count - 1; i >= 0; i--)
{
Letter letter = lettersPendingToBeDrawnToTexture[i];
Bitmap bitmap = this.GetLetterBitmap(letter.mCharacter);
GLHelper.BindTexture(pGL, hardwareTextureID);
GLUtils.TexSubImage2D(GL10Consts.GlTexture2d, 0, (int)(letter.mTextureX * textureWidth), (int)(letter.mTextureY * textureHeight), bitmap);
bitmap.Recycle();
}
lettersPendingToBeDrawnToTexture.Clear();
//System.gc();
// TODO: Verify if this is a good match: System.gc() -> Dispose() ... leaving it to standard GC at present
}
}
}
protected void GenerateTexture(Bitmap bitmap)
{
GL.Hint(HintTarget.GenerateMipmapHint, HintMode.Fastest);
uint name = (uint)GL.GenTexture();
GL.BindTexture(TextureTarget.Texture2D, name);
/* TODO is this needed?
* if (GLExtensions.TextureMaxAnisotropySupported)
* {
* float maxAniso;
* GL.GetFloat((GetPName)ExtTextureFilterAnisotropic.MaxTextureMaxAnisotropyExt, out maxAniso);
* GL.TexParameter(TextureTarget.Texture2D, (TextureParameterName)ExtTextureFilterAnisotropic.TextureMaxAnisotropyExt, maxAniso);
* }
*/
GL.TexStorage2D(TextureTarget2D.Texture2D,
1, // mipmap level, min 1
SizedInternalFormat.Rgba8,
bitmap.Width,
bitmap.Height);
if (bitmap.Width > 0 && bitmap.Height > 0)
{
GLUtils.TexSubImage2D(GLES20.GlTexture2d,
0, // level
0, // xOffset
0, // yOffset
bitmap);
}
else
{
Console.Out.WriteLine("WARNING: empty bitmap loaded");
}
// see https://github.com/mono/MonoGame/blob/develop/MonoGame.Framework/Graphics/Texture2D.OpenGL.cs
// for how MonoGame does it
_glTexture = new GLTexture(name, bitmap.Width, bitmap.Height, false, 1.0f, false);
_isLoaded = true;
// Make a temporary copy of the event to avoid possibility of
// a race condition if the last subscriber unsubscribes
// immediately after the null check and before the event is raised.
EventHandler <GLTexture> handler = ResourceLoaded;
if (handler != null)
{
handler(this, _glTexture);
}
}
public GLBitmapAtlas CreateBitmapAtlasFromResources(string[] names)
{
var bitmaps = new Bitmap[names.Length];
var elementSizeX = 0;
var elementSizeY = 0;
for (int i = 0; i < names.Length; i++)
{
var bmp = LoadBitmapFromResourceWithScaling(names[i]);
elementSizeX = Math.Max(elementSizeX, bmp.Width);
elementSizeY = Math.Max(elementSizeY, bmp.Height);
bitmaps[i] = bmp;
}
var elementsPerRow = MaxAtlasResolution / elementSizeX;
var numRows = Utils.DivideAndRoundUp(names.Length, elementsPerRow);
var atlasSizeX = elementsPerRow * elementSizeX;
var atlasSizeY = numRows * elementSizeY;
var textureId = CreateEmptyTexture(atlasSizeX, atlasSizeY, true);
var elementRects = new Rectangle[names.Length];
GLES11.GlBindTexture(GLES11.GlTexture2d, textureId);
for (int i = 0; i < names.Length; i++)
{
var bmp = bitmaps[i];
var row = i / elementsPerRow;
var col = i % elementsPerRow;
elementRects[i] = new Rectangle(
col * elementSizeX,
row * elementSizeY,
bmp.Width,
bmp.Height);
GLUtils.TexSubImage2D(GLES11.GlTexture2d, 0, elementRects[i].X, elementRects[i].Y, bmp);
bmp.Recycle();
}
return(new GLBitmapAtlas(textureId, atlasSizeX, atlasSizeY, elementRects, true, true));
}
