/// <summary>
/// Blits the surface onto the specified destination surface.
/// </summary>
/// <param name="src">The source surface.</param>
/// <param name="srcRect">The area of this surface that will be copied to the destination surface.</param>
/// <param name="dst">The destination surface.</param>
/// <param name="dstRect">The area on the destination surface to which this surface will be copied.</param>
private static void BlitInternal(OpenGLSurface2D src, Rectangle srcRect, OpenGLSurface2D dst, Rectangle dstRect)
{
var sdlSrcRect = new SDL_Rect()
{
x = srcRect.X, y = srcRect.Y, w = srcRect.Width, h = srcRect.Height
};
var sdlDstRect = new SDL_Rect()
{
x = dstRect.X, y = dstRect.Y, w = dstRect.Width, h = dstRect.Height
};
if (SDL.SetSurfaceBlendMode(src.nativesurf.Native, SDL_BlendMode.NONE) < 0)
{
throw new SDL2Exception();
}
if (srcRect.Width != dstRect.Width || srcRect.Height != dstRect.Height)
{
if (SDL.BlitScaled(src.nativesurf.Native, &sdlSrcRect, dst.nativesurf.Native, &sdlDstRect) < 0)
{
throw new SDL2Exception();
}
}
else
{
if (SDL.BlitSurface(src.nativesurf.Native, &sdlSrcRect, dst.nativesurf.Native, &sdlDstRect) < 0)
{
throw new SDL2Exception();
}
}
}
/// <inheritdoc/>
public override Texture2D Process(ContentManager manager, IContentProcessorMetadata metadata, SDL_Surface input)
{
var mdat = metadata.As <OpenGLTexture2DProcessorMetadata>();
using (var surface = new OpenGLSurface2D(manager.Ultraviolet, input))
{
return(surface.CreateTexture(mdat.PremultiplyAlpha));
}
}
/// <inheritdoc/>
public override void ExportPreprocessed(ContentManager manager, IContentProcessorMetadata metadata, BinaryWriter writer, SDL_Surface input, Boolean delete)
{
var mdat = metadata.As <OpenGLTexture2DProcessorMetadata>();
using (var surface = new OpenGLSurface2D(manager.Ultraviolet, input))
{
surface.PrepareForTextureExport(mdat.PremultiplyAlpha);
using (var memstream = new MemoryStream())
{
surface.SaveAsPng(memstream);
writer.Write((int)memstream.Length);
writer.Write(memstream.ToArray());
}
}
}
/// <summary>
/// Blits the surface onto the specified destination surface.
/// </summary>
/// <param name="src">The source surface.</param>
/// <param name="srcRect">The area of this surface that will be copied to the destination surface.</param>
/// <param name="dst">The destination surface.</param>
/// <param name="dstRect">The area on the destination surface to which this surface will be copied.</param>
private static void BlitInternal(OpenGLSurface2D src, Rectangle srcRect, OpenGLSurface2D dst, Rectangle dstRect)
{
var sdlSrcRect = new SDL_Rect() { x = srcRect.X, y = srcRect.Y, w = srcRect.Width, h = srcRect.Height };
var sdlDstRect = new SDL_Rect() { x = dstRect.X, y = dstRect.Y, w = dstRect.Width, h = dstRect.Height };
if (SDL.SetSurfaceBlendMode(src.nativesurf.Native, SDL_BlendMode.NONE) < 0)
throw new SDL2Exception();
if (srcRect.Width != dstRect.Width || srcRect.Height != dstRect.Height)
{
if (SDL.BlitScaled(src.nativesurf.Native, &sdlSrcRect, dst.nativesurf.Native, &sdlDstRect) < 0)
throw new SDL2Exception();
}
else
{
if (SDL.BlitSurface(src.nativesurf.Native, &sdlSrcRect, dst.nativesurf.Native, &sdlDstRect) < 0)
throw new SDL2Exception();
}
}