public D3DHardwarePixelBuffer(BufferUsage usage) :
base(0, 0, 0, Axiom.Media.PixelFormat.Unknown, usage, false, false)
{
device = null;
surface = null;
volume = null;
tempSurface = null;
tempVolume = null;
doMipmapGen = false;
HWMipmaps = false;
mipTex = null;
sliceTRT = new List <RenderTexture>();
}
///<summary>
/// Call this to associate a D3D volume with this pixel buffer
///</summary>
public void Bind(D3D.Device device, D3D.Volume volume, bool update)
{
this.device = device;
this.volume = volume;
D3D.VolumeDescription desc = volume.Description;
width = desc.Width;
height = desc.Height;
depth = desc.Depth;
format = D3DHelper.ConvertEnum(desc.Format);
// Default
rowPitch = width;
slicePitch = height * width;
sizeInBytes = PixelUtil.GetMemorySize(width, height, depth, format);
if (((int)usage & (int)TextureUsage.RenderTarget) != 0)
{
CreateRenderTextures(update);
}
}
///<summary>
/// @copydoc HardwarePixelBuffer.BlitToMemory
///</summary>
public override void BlitToMemory(BasicBox srcBox, PixelBox dst)
{
// Decide on pixel format of temp surface
PixelFormat tmpFormat = format;
if (D3DHelper.ConvertEnum(dst.Format) == D3D.Format.Unknown)
{
tmpFormat = dst.Format;
}
if (surface != null)
{
Debug.Assert(srcBox.Depth == 1 && dst.Depth == 1);
// Create temp texture
D3D.Texture tmp =
new D3D.Texture(device, dst.Width, dst.Height,
1, // 1 mip level ie topmost, generate no mipmaps
0, D3DHelper.ConvertEnum(tmpFormat),
Pool.Scratch);
D3D.Surface subSurface = tmp.GetSurfaceLevel(0);
// Copy texture to this temp surface
Rectangle destRect, srcRect;
srcRect = ToD3DRectangle(srcBox);
destRect = ToD3DRectangleExtent(dst);
SurfaceLoader.FromSurface(subSurface, destRect, surface, srcRect, Filter.None, 0);
// Lock temp surface and copy it to memory
int pitch; // Filled in by D3D
GraphicsStream data = subSurface.LockRectangle(D3D.LockFlags.ReadOnly, out pitch);
// Copy it
PixelBox locked = new PixelBox(dst.Width, dst.Height, dst.Depth, tmpFormat);
FromD3DLock(locked, pitch, data);
PixelUtil.BulkPixelConversion(locked, dst);
subSurface.UnlockRectangle();
// Release temporary surface and texture
subSurface.Dispose();
tmp.Dispose();
}
else
{
// Create temp texture
D3D.VolumeTexture tmp =
new D3D.VolumeTexture(device, dst.Width, dst.Height, dst.Depth,
0, D3D.Usage.None,
D3DHelper.ConvertEnum(tmpFormat),
Pool.Scratch);
D3D.Volume subVolume = tmp.GetVolumeLevel(0);
// Volume
D3D.Box ddestBox = ToD3DBoxExtent(dst);
D3D.Box dsrcBox = ToD3DBox(srcBox);
VolumeLoader.FromVolume(subVolume, ddestBox, volume, dsrcBox, Filter.None, 0);
// Lock temp surface and copy it to memory
D3D.LockedBox lbox; // Filled in by D3D
GraphicsStream data = subVolume.LockBox(LockFlags.ReadOnly, out lbox);
// Copy it
PixelBox locked = new PixelBox(dst.Width, dst.Height, dst.Depth, tmpFormat);
FromD3DLock(locked, lbox, data);
PixelUtil.BulkPixelConversion(locked, dst);
subVolume.UnlockBox();
// Release temporary surface and texture
subVolume.Dispose();
tmp.Dispose();
}
}
///<summary>
/// Call this to associate a D3D volume with this pixel buffer
///</summary>
public void Bind(D3D.Device device, D3D.Volume volume, bool update)
{
this.device = device;
this.volume = volume;
D3D.VolumeDescription desc = volume.Description;
width = desc.Width;
height = desc.Height;
depth = desc.Depth;
format = D3DHelper.ConvertEnum(desc.Format);
// Default
rowPitch = width;
slicePitch = height * width;
sizeInBytes = PixelUtil.GetMemorySize(width, height, depth, format);
if (((int)usage & (int)TextureUsage.RenderTarget) != 0)
CreateRenderTextures(update);
}
public D3DHardwarePixelBuffer(BufferUsage usage)
: base(0, 0, 0, Axiom.Media.PixelFormat.Unknown, usage, false, false)
{
device = null;
surface = null;
volume = null;
tempSurface = null;
tempVolume = null;
doMipmapGen = false;
HWMipmaps = false;
mipTex = null;
sliceTRT = new List<RenderTexture>();
}
