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Implement ability to perform partial update of textures on both graphics api backends. Partially addresses #44.

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This commit is contained in:
UnknownShadow200 2015-09-02 18:33:13 +10:00
parent 1aff357e80
commit f33428a531
5 changed files with 46 additions and 12 deletions
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7
ClassicalSharp/GraphicsAPI/Direct3D9Api.cs
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@ -162,9 +162,14 @@ namespace ClassicalSharp.GraphicsAPI {
public override int CreateTexture( int width, int height, IntPtr scan0 ) {
D3D.Texture texture = device.CreateTexture( width, height, 0, Usage.None, Format.A8R8G8B8, Pool.Managed );
texture.SetData( scan0, width * height * 4, 0, LockFlags.None );
texture.SetData( 0, LockFlags.None, scan0, width * height * 4 );
return GetOrExpand( ref textures, texture, texBufferSize );
}
public override void UpdateTexturePart( int texId, int texX, int texY, FastBitmap part ) {
D3D.Texture texture = textures[texId];
texture.SetPartData( 0, LockFlags.None, part.Scan0, texX, texY, part.Width, part.Height );
}
public override void BindTexture( int texId ) {
device.SetTexture( 0, textures[texId] );

2
ClassicalSharp/GraphicsAPI/IGraphicsApi.cs
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@ -44,6 +44,8 @@ namespace ClassicalSharp.GraphicsAPI {
public abstract int CreateTexture( int width, int height, IntPtr scan0 );
public abstract void UpdateTexturePart( int texId, int texX, int texY, FastBitmap part );
public abstract void BindTexture( int texId );
public abstract void DeleteTexture( ref int texId );

16
ClassicalSharp/GraphicsAPI/OpenGLApi.cs
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@ -159,9 +159,15 @@ namespace ClassicalSharp.GraphicsAPI {
GlPixelFormat.Bgra, PixelType.UnsignedByte, scan0 );
return texId;
}
public override void BindTexture( int texture ) {
GL.BindTexture( TextureTarget.Texture2D, texture );
}
public override void UpdateTexturePart( int texId, int texX, int texY, FastBitmap part ) {
GL.BindTexture( TextureTarget.Texture2D, texId );
GL.TexSubImage2D( TextureTarget.Texture2D, 0, texX, texY, part.Width, part.Height,
GlPixelFormat.Bgra, PixelType.UnsignedByte, part.Scan0 );
}
public unsafe override void DeleteTexture( ref int texId ) {
@ -403,14 +409,6 @@ namespace ClassicalSharp.GraphicsAPI {
if( value ) GL.Enable( cap );
else GL.Disable( cap );
}
public void UpdateTexturePart( int texId, int x, int y, FastBitmap part ) {
GL.Enable( EnableCap.Texture2D );
GL.BindTexture( TextureTarget.Texture2D, texId );
GL.TexSubImage2D( TextureTarget.Texture2D, 0, x, y, part.Width, part.Height,
GlPixelFormat.Bgra, PixelType.UnsignedByte, part.Scan0 );
GL.Disable( EnableCap.Texture2D );
}
}
}
#endif

25
OpenTK/SharpDX.Direct3D/Resources.cs
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@ -106,12 +106,35 @@ namespace SharpDX.Direct3D9 {
return lockedRect;
}
public void SetData( IntPtr data, int bytes, int level, LockFlags flags ) {
public LockedRectangle LockRectangle(int level, D3DRect rect, LockFlags flags) {
LockedRectangle lockedRect = new LockedRectangle();
int res = Interop.Calli(comPointer, level, (IntPtr)(void*)&lockedRect, (IntPtr)(void*)&rect, (int)flags,(*(IntPtr**)comPointer)[19]);
if( res < 0 ) { throw new SharpDXException( res ); }
return lockedRect;
}
public void SetData( int level, LockFlags flags, IntPtr data,int bytes ) {
LockedRectangle rect = LockRectangle( level, flags );
MemUtils.memcpy( data, rect.DataPointer, bytes );
UnlockRectangle( level );
}
public void SetPartData( int level, LockFlags flags, IntPtr data, int x, int y, int width, int height ) {
D3DRect partRect;
partRect.Left = x; partRect.Top = y;
partRect.Right = x + width; partRect.Bottom = y + height;
LockedRectangle rect = LockRectangle( level, partRect, flags );
// We need to copy scanline by scanline, as generally rect.stride != data.stride
byte* src = (byte*)data, dst = (byte*)rect.DataPointer;
for( int yy = 0; yy < height; yy++ ) {
MemUtils.memcpy( (IntPtr)src, (IntPtr)dst, width * 4 );
src += width * 4;
dst += rect.Pitch;
}
UnlockRectangle( level );
}
public void UnlockRectangle(int level) {
int res = Interop.Calli(comPointer, level,(*(IntPtr**)comPointer)[20]);
if( res < 0 ) { throw new SharpDXException( res ); }

8
OpenTK/SharpDX/Raw.cs
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@ -50,5 +50,11 @@ namespace SharpDX {
public IntPtr DataPointer;
}
[StructLayout( LayoutKind.Sequential )]
public struct D3DRect {
public int Left;
public int Top;
public int Right;
public int Bottom;
}
}