private void PlatformConstruct(int width, int height, bool mipmap, SurfaceFormat format, SurfaceType type, bool shared)
{
this.glTarget = TextureTarget.Texture2D;
format.GetGLFormat(GraphicsDevice, out glInternalFormat, out glFormat, out glType);
Threading.BlockOnUIThread(() =>
{
GenerateGLTextureIfRequired();
int w = width;
int h = height;
int level = 0;
while (true)
{
if (glFormat == (PixelFormat)GLPixelFormat.CompressedTextureFormats)
{
int imageSize = 0;
// PVRTC has explicit calculations for imageSize
// https://www.khronos.org/registry/OpenGL/extensions/IMG/IMG_texture_compression_pvrtc.txt
if (format == SurfaceFormat.RgbPvrtc2Bpp || format == SurfaceFormat.RgbaPvrtc2Bpp)
{
imageSize = (Math.Max(w, 16) * Math.Max(h, 8) * 2 + 7) / 8;
}
else if (format == SurfaceFormat.RgbPvrtc4Bpp || format == SurfaceFormat.RgbaPvrtc4Bpp)
{
imageSize = (Math.Max(w, 8) * Math.Max(h, 8) * 4 + 7) / 8;
}
else
{
int blockSize = format.GetSize();
int blockWidth, blockHeight;
format.GetBlockSize(out blockWidth, out blockHeight);
int wBlocks = (w + (blockWidth - 1)) / blockWidth;
int hBlocks = (h + (blockHeight - 1)) / blockHeight;
imageSize = wBlocks * hBlocks * blockSize;
}
GL.CompressedTexImage2D(TextureTarget.Texture2D, level, glInternalFormat, w, h, 0, imageSize, IntPtr.Zero);
GraphicsExtensions.CheckGLError();
}
else
{
GL.TexImage2D(TextureTarget.Texture2D, level, glInternalFormat, w, h, 0, glFormat, glType, IntPtr.Zero);
GraphicsExtensions.CheckGLError();
}
if ((w == 1 && h == 1) || !mipmap)
{
break;
}
if (w > 1)
{
w = w / 2;
}
if (h > 1)
{
h = h / 2;
}
++level;
}
});
}
private void PlatformConstruct(int width, int height, bool mipmap, SurfaceFormat format, SurfaceType type, bool shared)
{
this.glTarget = gl.TEXTURE_2D;
format.GetGLFormat(GraphicsDevice, out glInternalFormat, out glFormat, out glType);
GenerateGLTextureIfRequired();
int w = width;
int h = height;
int level = 0;
while (true)
{
if (glFormat == gl.COMPRESSED_TEXTURE_FORMATS)
{
int imageSize = 0;
// PVRTC has explicit calculations for imageSize
// https://www.khronos.org/registry/OpenGL/extensions/IMG/IMG_texture_compression_pvrtc.txt
if (format == SurfaceFormat.RgbPvrtc2Bpp || format == SurfaceFormat.RgbaPvrtc2Bpp)
{
imageSize = (Math.Max(w, 16) * Math.Max(h, 8) * 2 + 7) / 8;
}
else if (format == SurfaceFormat.RgbPvrtc4Bpp || format == SurfaceFormat.RgbaPvrtc4Bpp)
{
imageSize = (Math.Max(w, 8) * Math.Max(h, 8) * 4 + 7) / 8;
}
else
{
int blockSize = format.GetSize();
int blockWidth, blockHeight;
format.GetBlockSize(out blockWidth, out blockHeight);
int wBlocks = (w + (blockWidth - 1)) / blockWidth;
int hBlocks = (h + (blockHeight - 1)) / blockHeight;
imageSize = wBlocks * hBlocks * blockSize;
}
}
gl.texImage2D(gl.TEXTURE_2D, level, glInternalFormat, glFormat, glType, (new ImageData(w, h).As <ImageBitmap>()));
GraphicsExtensions.CheckGLError();
if ((w == 1 && h == 1) || !mipmap)
{
break;
}
if (w > 1)
{
w = w / 2;
}
if (h > 1)
{
h = h / 2;
}
++level;
}
}
