|
private GenTextures ( |
||
| n | ||
| textures | [ | |
| return | void | |
protected unsafe virtual bool init(IDisposableResource parent, Image image, int width, int height, bool generateMipmaps, MultiSampleTypes multiSampleType, SurfaceFormats surfaceFormat, RenderTargetUsage renderTargetUsage, BufferUsages usage, bool isRenderTarget, Loader.LoadedCallbackMethod loadedCallback)
{
try
{
if (usage == BufferUsages.Read && !isRenderTarget)
{
Debug.ThrowError("Texture2D", "Only RenderTargets may be readable");
}
video = parent.FindParentOrSelfWithException <Video>();
if (isRenderTarget)
{
generateMipmaps = false;
}
uint texturesTEMP = 0;
GL.GenTextures(1, &texturesTEMP);
Texture = texturesTEMP;
if (Texture == 0)
{
Debug.ThrowError("Texture2D", "Failed to Generate Texture");
}
GL.BindTexture(GL.TEXTURE_2D, Texture);
if (!generateMipmaps)
{
GL.TexParameteri(GL.TEXTURE_2D, GL.TEXTURE_MIN_FILTER, GL.LINEAR);
}
else
{
GL.TexParameteri(GL.TEXTURE_2D, GL.TEXTURE_MIN_FILTER, GL.LINEAR_MIPMAP_LINEAR);
}
GL.TexParameteri(GL.TEXTURE_2D, GL.TEXTURE_MAG_FILTER, GL.LINEAR);
hasMipmaps = false;
if (image != null)
{
var imageType = image.GetType();
#if NaCl
if (imageType == typeof(ImageBMPC))
#else
if (imageType == typeof(ImagePNG) || imageType == typeof(ImageJPG) || imageType == typeof(ImageBMP) || imageType == typeof(ImageBMPC))
#endif
{
uint pixelOrder, byteSizes;
int format = Video.surfaceFormat(surfaceFormat, out pixelOrder, out byteSizes);
var mipmap = image.Mipmaps[0];
fixed(byte *data = mipmap.Data)
{
GL.TexImage2D(GL.TEXTURE_2D, 0, format, mipmap.Size.Width, mipmap.Size.Height, 0, pixelOrder, byteSizes, data);
if (generateMipmaps)
{
hasMipmaps = true;
GL.GenerateMipmap(GL.TEXTURE_2D);
}
}
}
else if (imageType == typeof(ImageDDS) || imageType == typeof(ImagePVR))
{
if (image.Mipmaps.Length != Image.Mipmap.CalculateMipmapLvls(image.Size.Width, image.Size.Height))
{
Debug.ThrowError("Texture2D", "Compressed Textures require full mipmap chain");
}
GL.TexParameteri(GL.TEXTURE_2D, GL.TEXTURE_MIN_FILTER, GL.LINEAR_MIPMAP_LINEAR);
hasMipmaps = true;
bool compressed = false;
uint format = 0;
string errorType = null;
if (imageType == typeof(ImageDDS))
{
var imageDDS = (ImageDDS)image;
compressed = imageDDS.Compressed;
format = imageDDS.FormatGL;
errorType = "DDS";
}
else if (imageType == typeof(ImagePVR))
{
var imagePVR = (ImagePVR)image;
compressed = imagePVR.Compressed;
format = imagePVR.FormatGL;
errorType = "PVR";
}
if (compressed)
{
for (int i = 0; i < image.Mipmaps.Length; ++i)
{
var mipmap = image.Mipmaps[i];
fixed(byte *data = mipmap.Data)
{
// look up:: libtxc_dxtn.so for linux with mesa
GL.CompressedTexImage2D(GL.TEXTURE_2D, i, format, mipmap.Size.Width, mipmap.Size.Height, 0, mipmap.Data.Length, data);
}
}
}
else
{
Debug.ThrowError("Texture2D", "Loading uncompresed " + errorType + " textures not supported");
}
}
Size = image.Size;
PixelByteSize = image.CalculatePixelByteSize();
}
else
{
//GL.TexImage2D(GL.TEXTURE_2D, 0, Video.surfaceFormat(surfaceFormat), width, height, 0, GL.RGBA, GL.UNSIGNED_BYTE, IntPtr.Zero.ToPointer());
uint pixelOrder, byteSizes;
int format = Video.surfaceFormat(surfaceFormat, out pixelOrder, out byteSizes);
GL.TexImage2D(GL.TEXTURE_2D, 0, format, width, height, 0, pixelOrder, byteSizes, IntPtr.Zero.ToPointer());
if (generateMipmaps)
{
hasMipmaps = true;
GL.GenerateMipmap(GL.TEXTURE_2D);
}
Size = new Size2(width, height);
PixelByteSize = Image.CalculatePixelByteSize((surfaceFormat == SurfaceFormats.Defualt ? Video.DefaultSurfaceFormat() : surfaceFormat), width, height);
}
SizeF = Size.ToVector2();
uint error;
string errorName;
if (Video.checkForError(out error, out errorName))
{
Debug.ThrowError("Texture2D", string.Format("{0} {1}: Failed to load/create texture", error, errorName));
}
}
catch (Exception e)
{
FailedToLoad = true;
Loader.AddLoadableException(e);
Dispose();
if (loadedCallback != null)
{
loadedCallback(this, false);
}
return(false);
}
if (!isRenderTarget)
{
Loaded = true;
if (loadedCallback != null)
{
loadedCallback(this, true);
}
}
return(true);
}