public override void WriteData( int offset, int length, BufferBase src, bool discardWholeBuffer )
{
Debug.Assert( ( offset + length ) <= base.sizeInBytes );
using ( var pIntData = BufferBase.Wrap( _mpData, length ).Offset( offset ) )
Memory.Copy( src, pIntData, length );
}
public override void ReadData( int offset, int length, BufferBase dest )
{
Debug.Assert( ( offset + length ) <= base.sizeInBytes );
using ( var data = BufferBase.Wrap( _mpData ).Offset( offset ) )
Memory.Copy( dest, data, length );
}
/// <summary>
/// </summary>
/// <param name="idxType"> </param>
/// <param name="numIndexes"> </param>
/// <param name="usage"> </param>
public GLES2DefaultHardwareIndexBuffer( IndexType idxType, int numIndexes, BufferUsage usage )
: base( null, idxType, numIndexes, usage, true, false ) // always software, never shadowed
{
if ( idxType == IndexType.Size32 )
{
throw new AxiomException( "32 bit hardware buffers are not allowed in OpenGL ES." );
}
this._data = new byte[ sizeInBytes ];
this._dataPtr = BufferBase.Wrap( this._data );
}
public void Convert(BufferBase input, BufferBase output, int offset)
{
#if !AXIOM_SAFE_ONLY
unsafe
#endif
{
var inputPtr = input.ToBytePointer();
var outputPtr = output.ToUIntPointer();
var inp = inputPtr[offset];
outputPtr[offset] = 0xFF000000 | (((uint)inp) << 0) | (((uint)inp) << 8) | (((uint)inp) << 16);
}
}
/// <summary>
/// </summary>
/// <param name="offset"> </param>
/// <param name="length"> </param>
/// <param name="dest"> </param>
public override void ReadData(int offset, int length, BufferBase dest)
{
if (useShadowBuffer)
{
var srcData = shadowBuffer.Lock(offset, length, BufferLocking.ReadOnly);
Memory.Copy(srcData, dest, length);
shadowBuffer.Unlock();
}
else
{
throw new AxiomException("Reading hardware buffer is not supported.");
}
}
public void WriteContentsToFile(string fileName)
{
var pf = SuggestPixelFormat();
var data = new byte[Width * Height * PixelUtil.GetNumElemBytes(pf)];
var buf = BufferBase.Wrap(data);
var pb = new PixelBox(Width, Height, 1, pf, buf);
CopyContentsToMemory(pb);
(new Image()).FromDynamicImage(data, Width, Height, 1, pf, false, 1, 0).Save(fileName);
buf.Dispose();
}
protected void SetBuffer(byte[] newBuffer)
{
if (this.buffer != null)
{
this.bufPtr = null;
this.buffer = null;
}
if (newBuffer != null)
{
this.buffer = newBuffer;
this.bufPtr = BufferBase.Wrap(newBuffer);
}
}
protected void allocateBuffer()
{
if (buffer.Data != null)
{
// Already allocated
return;
}
// Allocate storage
this._data = new byte[sizeInBytes];
buffer.Data = BufferBase.Wrap(this._data);
// TODO: use PBO if we're HBU_DYNAMIC
}
public void Convert(BufferBase input, BufferBase output, int offset)
{
#if !AXIOM_SAFE_ONLY
unsafe
#endif
{
var inputPtr = input.ToUIntPointer();
var outputPtr = output.ToUIntPointer();
var inp = inputPtr[offset];
outputPtr[offset] = ((inp & 0x0000FF00) << 16) | (inp & 0x00FF00FF) | ((inp & 0xFF000000) >> 16);
}
}
public void Convert(BufferBase input, BufferBase output, int offset)
{
#if !AXIOM_SAFE_ONLY
unsafe
#endif
{
var inputPtr = input.ToUIntPointer();
var outputPtr = output.ToBytePointer();
var inp = inputPtr[offset];
outputPtr[offset] = (byte)(inp & 0x000000FF);
}
}
public static byte[] GetBuffer(string _src)
{
byte[] strbyte = Encoding.UTF8.GetBytes(_src);
byte[] lenbyte = BufferBase.GetBuffer((short)strbyte.Length);
byte[] ret = new byte[strbyte.Length + lenbyte.Length];
lenbyte.CopyTo(ret, 0);
if (strbyte.Length > 0)
{
strbyte.CopyTo(ret, lenbyte.Length);
}
return(ret);
}
public override void WriteData(int offset, int length, BufferBase src, bool discardWholeBuffer)
{
// There is no functional interface in D3D, just do via manual
// lock, copy & unlock
// lock the buffer real quick
var dest = Lock(offset, length, discardWholeBuffer ? BufferLocking.Discard : BufferLocking.Normal);
// copy that data in there
Memory.Copy(src, dest, length);
// unlock the buffer
Unlock();
}
/// <summary>
/// Writes a specified number of floats.
/// </summary>
/// <param name="writer"></param>
/// <param name="count">Number of values to write.</param>
/// <param name="src">Pointer that holds the values.</param>
protected void WriteFloats(BinaryWriter writer, int count, BufferBase src)
{
#if !AXIOM_SAFE_ONLY
unsafe
#endif
{
var pointer = src.ToFloatPointer();
for (var i = 0; i < count; i++)
{
writer.Write(pointer[i]);
}
}
}
/// <summary>
/// Reads a specified number of shorts and copies them into the destination pointer.
/// </summary>
/// <param name="reader"></param>
/// <param name="count">Number of values to read.</param>
/// <param name="dest">Pointer to copy the values into.</param>
protected void ReadShorts(BinaryReader reader, int count, BufferBase dest)
{
// blast the data into the buffer
#if !AXIOM_SAFE_ONLY
unsafe
#endif
{
var pointer = dest.ToShortPointer();
for (var i = 0; i < count; i++)
{
pointer[i] = ReadShort(reader);
}
}
}
///<summary>
///</summary>
///<param name="offset"> </param>
///<param name="length"> </param>
///<param name="locking"> </param>
///<returns> </returns>
protected override BufferBase LockImpl(int offset, int length, BufferLocking locking)
{
int access = 0;
if (isLocked)
{
throw new Exception("Invalid attempt to lock an index buffer that has already been locked.");
}
// bind this buffer
Gl.glBindBufferARB(Gl.GL_ELEMENT_ARRAY_BUFFER_ARB, this._bufferId);
if (locking == BufferLocking.Discard)
{
// commented out to fix ATI issues
/*Gl.glBufferDataARB(Gl.GL_ELEMENT_ARRAY_BUFFER_ARB,
* sizeInBytes,
* IntPtr.Zero,
* GLHelper.ConvertEnum(usage));
*/
// find out how we shall access this buffer
access = (usage == BufferUsage.Dynamic) ? Gl.GL_READ_WRITE_ARB : Gl.GL_WRITE_ONLY_ARB;
}
else if (locking == BufferLocking.ReadOnly)
{
if (usage == BufferUsage.WriteOnly)
{
LogManager.Instance.Write("OGL : Invalid attempt to lock a write-only vertex buffer as read-only.");
}
access = Gl.GL_READ_ONLY_ARB;
}
else if (locking == BufferLocking.Normal || locking == BufferLocking.NoOverwrite)
{
access = (usage == BufferUsage.Dynamic) ? Gl.GL_READ_WRITE_ARB : Gl.GL_WRITE_ONLY_ARB;
}
IntPtr ptr = Gl.glMapBufferARB(Gl.GL_ELEMENT_ARRAY_BUFFER_ARB, access);
if (ptr == IntPtr.Zero)
{
throw new Exception("OGL: Vertex Buffer: Out of memory");
}
isLocked = true;
return(BufferBase.Wrap(new IntPtr(ptr.ToInt64() + offset), length));
}
public override void ReadData(int offset, int length, BufferBase dest)
{
// There is no functional interface in D3D, just do via manual
// lock, copy & unlock
// lock the buffer for reading
var src = Lock(offset, length, BufferLocking.ReadOnly);
// copy that data in there
Memory.Copy(src, dest, length);
// unlock the buffer
Unlock();
}
/// <summary>
/// Writes a specified number of shorts.
/// </summary>
/// <param name="writer"></param>
/// <param name="count">Number of values to write.</param>
/// <param name="src">Pointer that holds the values.</param>
protected void WriteShorts(BinaryWriter writer, int count, BufferBase src)
{
// blast the data into the buffer
#if !AXIOM_SAFE_ONLY
unsafe
#endif
{
var pointer = src.ToShortPointer();
for (var i = 0; i < count; i++)
{
writer.Write(pointer[i]);
}
}
}
///<summary>
/// Copies a region from normal memory to a region of this pixelbuffer. The source
/// image can be in any pixel format supported by Axiom, and in any size.
///</summary>
///<param name="src">PixelBox containing the source pixels and format in memory</param>
///<param name="dstBox">Image.BasicBox describing the destination region in this buffer</param>
///<remarks>
/// The source and destination regions dimensions don't have to match, in which
/// case scaling is done. This scaling is generally done using a bilinear filter in hardware,
/// but it is faster to pass the source image in the right dimensions.
/// Only call this function when both buffers are unlocked.
///</remarks>
public override void BlitFromMemory(PixelBox src, BasicBox dstBox)
{
var converted = src;
var bufGCHandle = new GCHandle();
var bufSize = 0;
// Get src.Data as byte[]
bufSize = PixelUtil.GetMemorySize(src.Width, src.Height, src.Depth, Format);
var newBuffer = new byte[bufSize];
//bufGCHandle = GCHandle.Alloc( newBuffer, GCHandleType.Pinned );
//XnaHelper.Convert(XFG.SurfaceFormat) would never have returned SurfaceFormat.Unknown anyway...
//if (XnaHelper.Convert(src.Format) != XFG.SurfaceFormat.Unknown)
{
converted = new PixelBox(src.Width, src.Height, src.Depth, Format, BufferBase.Wrap(newBuffer));
PixelConverter.BulkPixelConversion(src, converted);
}
//else
//{
// Memory.Copy(converted.Data, BufferBase.Wrap(newBuffer), bufSize);
//}
if (surface != null)
{
surface.SetData(mipLevel, XnaHelper.ToRectangle(dstBox), newBuffer, 0, bufSize);
}
else if (cube != null)
{
cube.SetData(face, mipLevel, XnaHelper.ToRectangle(dstBox), newBuffer, 0, bufSize);
}
else
{
throw new NotSupportedException("BlitFromMemory on Volume Textures not supported.");
}
// If we allocated a buffer for the temporary conversion, free it here
if (bufGCHandle.IsAllocated)
{
bufGCHandle.Free();
}
if (doMipmapGen)
{
GenMipmaps();
}
}
public override void EncodeToFile(Stream input, string outFileName, Codec.CodecData codecData)
{
int imageID;
// create and bind a new image
Il.ilGenImages(1, out imageID);
Il.ilBindImage(imageID);
var buffer = new byte[input.Length];
input.Read(buffer, 0, buffer.Length);
var imgData = (ImageData)codecData;
PixelBox src;
using (var bufHandle = BufferBase.Wrap(buffer))
{
src = new PixelBox(imgData.width, imgData.height, imgData.depth, imgData.format, bufHandle);
}
try
{
// Convert image from Axiom to current IL image
ILUtil.ConvertToIL(src);
}
catch (Exception ex)
{
LogManager.Instance.Write("IL Failed image conversion :", ex.Message);
}
// flip the image
Ilu.iluFlipImage();
// save the image to file
Il.ilSaveImage(outFileName);
var error = Il.ilGetError();
if (error != Il.IL_NO_ERROR)
{
LogManager.Instance.Write("IL Error, could not save file: {0} : {1}", outFileName, Ilu.iluErrorString(error));
}
Il.ilDeleteImages(1, ref imageID);
}
/// <summary>
/// Reads a specified number of floats and copies them into the destination pointer.
/// </summary>
/// <remarks>This overload will also copy the values into the specified destination array.</remarks>
/// <param name="reader"></param>
/// <param name="count">Number of values to read.</param>
/// <param name="dest">Pointer to copy the values into.</param>
/// <param name="destArray">A float array that is to have the values copied into it at the same time as 'dest'.</param>
protected void ReadFloats(BinaryReader reader, int count, BufferBase dest, float[] destArray)
{
// blast the data into the buffer
#if !AXIOM_SAFE_ONLY
unsafe
#endif
{
var pointer = dest.ToFloatPointer();
for (var i = 0; i < count; i++)
{
var val = ReadFloat(reader);
pointer[i] = val;
destArray[i] = val;
}
}
}
public override void ReadData(int offset, int length, BufferBase dest)
{
//Debug.Assert(!isLocked, "Cannot lock this buffer because it is already locked."); //imitating render system specific hardware buffer behaviour
Debug.Assert(offset >= 0 && (offset + length) <= sizeInBytes, "Buffer overrun while trying to read a software buffer.");
unsafe
{
// get a pointer to the destination intptr
byte *pDest = (byte *)dest.Ptr;
// copy the src data to the destination buffer
for (int i = 0; i < length; i++)
{
pDest[offset + i] = data[offset + i];
}
}
}
public override void WriteData(int offset, int length, BufferBase src, bool discardWholeBuffer)
{
//Debug.Assert( !isLocked, "Cannot lock this buffer because it is already locked." ); //imitating render system specific hardware buffer behaviour
Debug.Assert(offset >= 0 && (offset + length) <= sizeInBytes, "Buffer overrun while trying to write to a software buffer.");
unsafe
{
// get a pointer to the destination intptr
byte *pSrc = (byte *)src.Ptr;
// copy the src data to the destination buffer
for (int i = 0; i < length; i++)
{
data[offset + i] = pSrc[offset + i];
}
}
}
public void Convert(BufferBase input, BufferBase output, int offset)
{
#if !AXIOM_SAFE_ONLY
unsafe
#endif
{
var inputPtr = input.ToUIntPointer();
var outputPtr = output.ToCol3BPointer();
var inp = inputPtr[offset];
outputPtr[offset] = new Col3b
{
x = (byte)((inp >> 0) & 0xFF),
y = (byte)((inp >> 8) & 0xFF),
z = (byte)((inp >> 16) & 0xFF),
};
}
}
private void _flipEndian(BufferBase pData, int size)
{
#if AXIOM_BIG_ENDIAN
byte swapByte;
#if !AXIOM_SAFE_ONLY
unsafe
#endif
{
var ptr = pData.ToBytePointer();
for (var byteIndex = 0; byteIndex < size / 2; byteIndex++)
{
swapByte = ptr[byteIndex];
ptr[byteIndex] = ptr[size - byteIndex - 1];
ptr[size - byteIndex - 1] = swapByte;
}
}
#endif
}
public override string MagicNumberToFileExt(byte[] magicNumberBuf, int maxbytes)
{
if (maxbytes >= sizeof(int))
{
var fileType = BitConverter.ToInt32(magicNumberBuf, 0);
using (var data = BufferBase.Wrap(fileType, 2))
{
_flipEndian(data, sizeof(int), 1);
}
if (this.PVR_MAGIC == fileType)
{
return("pvr");
}
}
return(string.Empty);
}
public void Update()
{
if (this.mData != null && this.mDirty)
{
using (var mDataBuf = BufferBase.Wrap(this.mData, mData.Length * sizeof(float)))
{
var pSrcBase = mDataBuf + (this.mDirtyBox.Top * this.mBuffer.Width + this.mDirtyBox.Left);
var pDstBase = this.mBuffer.Lock(this.mDirtyBox, BufferLocking.Normal).Data;
pDstBase += this.mChannelOffset;
var dstInc = PixelUtil.GetNumElemBytes(this.mBuffer.Format);
#if !AXIOM_SAFE_ONLY
unsafe
#endif
{
for (int y = 0; y < this.mDirtyBox.Height; ++y)
{
var pSrc = (pSrcBase + (y * this.mBuffer.Width) * sizeof(float)).ToFloatPointer();
var pDst = pDstBase + (y * this.mBuffer.Width * dstInc);
for (int x = 0; x < this.mDirtyBox.Width; ++x)
{
pDst.ToBytePointer()[0] = (byte)(pSrc[x] * 255);
pDst += dstInc;
}
}
}
this.mBuffer.Unlock();
this.mDirty = false;
}
// make sure composite map is updated
// mDirtyBox is in image space, convert to terrain units
var compositeMapRect = new Rectangle();
var blendToTerrain = (float)this.mParent.Size / (float)this.mBuffer.Width;
compositeMapRect.Left = (long)(this.mDirtyBox.Left * blendToTerrain);
compositeMapRect.Right = (long)(this.mDirtyBox.Right * blendToTerrain + 1);
compositeMapRect.Top = (long)((this.mBuffer.Height - this.mDirtyBox.Bottom) * blendToTerrain);
compositeMapRect.Bottom = (long)((this.mBuffer.Height - this.mDirtyBox.Top) * blendToTerrain + 1);
this.mParent.DirtyCompositeMapRect(compositeMapRect);
this.mParent.UpdateCompositeMapWithDelay();
}
}
/// <summary>
/// Updates buffer resources from system memory buffer.
/// </summary>
private bool _updateBufferResources(BufferBase systemMemoryBuffer, ref BufferResources bufferResources)
{
Contract.RequiresNotNull(bufferResources, "Cannot update BufferResources in D3D9HardwareIndexBuffer!");
Contract.RequiresNotNull(bufferResources.IndexBuffer, "Cannot update BufferResources in D3D9HardwareIndexBuffer!");
Contract.Requires(bufferResources.IsOutOfDate);
DX.DataStream dstBytes;
// Lock the buffer
try
{
dstBytes = bufferResources.IndexBuffer.Lock(bufferResources.LockOffset, bufferResources.LockLength,
D3D9Helper.ConvertEnum(bufferResources.LockOptions, usage));
}
catch (Exception ex)
{
throw new AxiomException("Cannot lock D3D9 index buffer!", ex);
}
using (var src = systemMemoryBuffer + bufferResources.LockOffset)
{
using (var dest = BufferBase.Wrap(dstBytes.DataPointer, (int)dstBytes.Length))
{
Memory.Copy(src, dest, bufferResources.LockLength);
}
}
// Unlock the buffer.
var hr = bufferResources.IndexBuffer.Unlock();
if (hr.Failure)
{
throw new AxiomException("Cannot unlock D3D9 index buffer: {0}", hr.ToString());
}
bufferResources.IsOutOfDate = false;
bufferResources.LockOffset = sizeInBytes;
bufferResources.LockLength = 0;
bufferResources.LockOptions = BufferLocking.Normal;
return(true);
}
///<summary>
///</summary>
///<param name="offset"> </param>
///<param name="length"> </param>
///<param name="dest"> </param>
public override void ReadData(int offset, int length, BufferBase dest)
{
if (useShadowBuffer)
{
// lock the buffer for reading
var src = shadowBuffer.Lock(offset, length, BufferLocking.ReadOnly);
// copy that data in there
Memory.Copy(src, dest, length);
// unlock the buffer
shadowBuffer.Unlock();
}
else
{
Gl.glBindBufferARB(Gl.GL_ELEMENT_ARRAY_BUFFER_ARB, this._bufferId);
Gl.glGetBufferSubDataARB(Gl.GL_ELEMENT_ARRAY_BUFFER_ARB, new IntPtr(offset), new IntPtr(length), dest.Pin());
dest.UnPin();
}
}
public void SetBuffer(byte[] _buffer, int _offset)
{
DataUsed = false;
mCSLEObject = null;
mIndex = 0;
int tindex = _offset;
mLen = BufferBase.SReadShort(_buffer, tindex);
tindex += sizeof(short);
mCmd = BufferBase.SReadShort(_buffer, tindex);
tindex += sizeof(short);
if (mData == null || mLen > mData.Length)
{
mData = new byte[mLen];
}
else
{
mData.Initialize();
}
Array.Copy(_buffer, tindex, mData, 0, mLen);
}
public void Convert(BufferBase input, BufferBase output, int offset)
{
#if !AXIOM_SAFE_ONLY
unsafe
#endif
{
var inputPtr = input.ToCol3BPointer();
var outputPtr = output.ToUIntPointer();
var inp = inputPtr[offset];
int xshift = 8, yshift = 16, zshift = 24, ashift = 0;
#if AXIOM_BIG_ENDIAN
outputPtr[offset] = ((uint)(0xFF << ashift)) | (((uint)inp.x) << xshift) |
(((uint)inp.y) << yshift) | (((uint)inp.z) << zshift);
#else
outputPtr[offset] = ((uint)(0xFF << ashift)) | (((uint)inp.x) << zshift) | (((uint)inp.y) << yshift) |
(((uint)inp.z) << xshift);
#endif
}
}
public D3D9HardwareVertexBuffer(HardwareBufferManagerBase manager, VertexDeclaration vertexDeclaration,
int numVertices, BufferUsage usage, bool useSystemMemory, bool useShadowBuffer)
: base(manager, vertexDeclaration, numVertices, usage, useSystemMemory, useShadowBuffer)
{
//Entering critical section
this.LockDeviceAccess();
this._mapDeviceToBufferResources = new Dictionary <D3D9.Device, BufferResources>();
#if AXIOM_D3D_MANAGE_BUFFERS
var eResourcePool = useSystemMemory
? D3D9.Pool.SystemMemory
: // If not system mem, use managed pool UNLESS buffer is discardable
// if discardable, keeping the software backing is expensive
((usage & BufferUsage.Discardable) != 0) ? D3D9.Pool.Default : D3D9.Pool.Managed;
#else
var eResourcePool = useSystemMemory ? D3D9.Pool.SystemMemory : D3D9.Pool.Default;
#endif
// Set the desired memory pool.
this._bufferDesc.Pool = eResourcePool;
// Allocate the system memory buffer.
this._systemMemoryBuffer = BufferBase.Wrap(new byte[sizeInBytes]);
// Case we have to create this buffer resource on loading.
if (D3D9RenderSystem.ResourceManager.CreationPolicy == D3D9ResourceManager.ResourceCreationPolicy.CreateOnAllDevices)
{
foreach (var d3d9Device in D3D9RenderSystem.ResourceCreationDevices)
{
CreateBuffer(d3d9Device, this._bufferDesc.Pool);
}
}
D3D9RenderSystem.ResourceManager.NotifyResourceCreated(this);
//Leaving critical section
this.UnlockDeviceAccess();
}
public override string MagicNumberToFileExt(byte[] magicBuf, int maxbytes)
{
FI.FIMEMORY fiMem;
FI.FREE_IMAGE_FORMAT fif;
using (var ptr = BufferBase.Wrap(magicBuf))
{
fiMem = FI.FreeImage.OpenMemory(ptr.Pin(), (uint)maxbytes);
ptr.UnPin();
fif = FI.FreeImage.GetFileTypeFromMemory(fiMem, maxbytes);
FI.FreeImage.CloseMemory(fiMem);
}
if (fif != FI.FREE_IMAGE_FORMAT.FIF_UNKNOWN)
{
return(FI.FreeImage.GetFormatFromFIF(fif).ToLower());
}
else
{
return(string.Empty);
}
}
/// <summary>
/// </summary>
/// <param name="offset"> </param>
/// <param name="length"> </param>
/// <param name="src"> </param>
/// <param name="discardWholeBuffer"> </param>
public override void WriteData(int offset, int length, BufferBase src, bool discardWholeBuffer)
{
OpenGL.BindBuffer(All.ElementArrayBuffer, this._bufferId);
GLESConfig.GlCheckError(this);
// Update the shadow buffer
if (useShadowBuffer)
{
var destData = shadowBuffer.Lock(offset, length, discardWholeBuffer ? BufferLocking.Discard : BufferLocking.Normal);
Memory.Copy(src, destData, length);
shadowBuffer.Unlock();
}
var srcPtr = src.Ptr;
if (offset == 0 && length == sizeInBytes)
{
OpenGL.BufferData(All.ElementArrayBuffer, new IntPtr(sizeInBytes), ref srcPtr, GLESHardwareBufferManager.GetGLUsage(usage));
GLESConfig.GlCheckError(this);
}
else
{
if (discardWholeBuffer)
{
OpenGL.BufferData(All.ElementArrayBuffer, new IntPtr(sizeInBytes), IntPtr.Zero, GLESHardwareBufferManager.GetGLUsage(usage));
GLESConfig.GlCheckError(this);
}
// Now update the real buffer
OpenGL.BufferSubData(All.ElementArrayBuffer, new IntPtr(offset), new IntPtr(length), ref srcPtr);
GLESConfig.GlCheckError(this);
}
if (src.Ptr != srcPtr)
{
LogManager.Instance.Write("[GLES2] HardwareIndexBuffer.WriteData - buffer pointer modified by GL.BufferData.");
}
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="owner">Reference to the hardware buffer who owns this stream.</param>
/// <param name="data">Pointer to the raw data we will be writing to.</param>
internal BufferStream( HardwareBuffer owner, BufferBase data )
{
this.data = data;
this.owner = owner;
}
private void Unpack( ref ColorEx dst, int x, int y, int z, PixelFormat format, BufferBase src, PixelBox srcbox,
int elemsize )
{
var data = src + ( elemsize*( ( x ) + ( y )*srcbox.RowPitch + ( z )*srcbox.SlicePitch ) );
dst = PixelConverter.UnpackColor( format, data );
}
/// <summary>
/// Caches a face group and calculates texture lighting coordinates.
/// </summary>
protected int CacheLightGeometry( TextureLight light, BufferBase pIndexesBuf, BufferBase pTexLightMapsBuf,
BufferBase pVerticesBuf, BspStaticFaceGroup faceGroup )
{
#if !AXIOM_SAFE_ONLY
unsafe
#endif
{
// Skip sky always
if ( faceGroup.isSky )
{
return 0;
}
int idxStart = 0;
int numIdx = 0;
int vertexStart = 0;
if ( faceGroup.type == FaceGroup.FaceList )
{
idxStart = faceGroup.elementStart;
numIdx = faceGroup.numElements;
vertexStart = faceGroup.vertexStart;
}
else if ( faceGroup.type == FaceGroup.Patch )
{
idxStart = faceGroup.patchSurf.IndexOffset;
numIdx = faceGroup.patchSurf.CurrentIndexCount;
vertexStart = faceGroup.patchSurf.VertexOffset;
}
else
{
// Unsupported face type
return 0;
}
var idxSize = this.level.Indexes.IndexSize;
var idxSrc = this.level.Indexes.Lock( idxStart*idxSize, numIdx*idxSize, BufferLocking.ReadOnly );
#if SILVERLIGHT
var src = idxSrc.ToUShortPointer();
#else
var src = idxSrc.ToUIntPointer();
#endif
int maxIndex = 0;
for ( int i = 0; i < numIdx; i++ )
{
var index = (int)src[ i ];
if ( index > maxIndex )
{
maxIndex = index;
}
}
var vertexPos = new Vector3[maxIndex + 1];
var vertexIsStored = new bool[maxIndex + 1];
for ( int i = 0; i < numIdx; i++ )
{
var index = (int)src[ i ];
var pVertices = pVerticesBuf.ToBspVertexPointer();
if ( !vertexIsStored[ index ] )
{
vertexPos[ index ] = pVertices[ vertexStart + index ].position;
vertexIsStored[ index ] = true;
}
pVerticesBuf.UnPin();
}
Vector2[] texCoors;
ColorEx[] colors;
bool res = light.CalculateTexCoordsAndColors( faceGroup.plane, vertexPos, out texCoors, out colors );
if ( res )
{
var pTexLightMaps = pTexLightMapsBuf.ToTextureLightMapPointer();
for ( int i = 0; i <= maxIndex; i++ )
{
pTexLightMaps[ vertexStart + i ] = new TextureLightMap
{
color = Root.Instance.RenderSystem.ConvertColor( colors[ i ] ),
textureLightMap = texCoors[ i ]
};
}
pTexLightMapsBuf.UnPin();
// Offset the indexes here
// we have to do this now rather than up-front because the
// indexes are sometimes reused to address different vertex chunks
if ( this.level.Indexes.Type == IndexType.Size16 )
{
var pIndexes = pIndexesBuf.ToUShortPointer();
for ( int i = 0; i < numIdx; i++ )
{
pIndexes[ i ] = (ushort)( src[ i ] + vertexStart );
}
}
else
{
var pIndexes = pIndexesBuf.ToUIntPointer();
for ( int i = 0; i < numIdx; i++ )
{
pIndexes[ i ] = (uint)( src[ i ] + vertexStart );
}
}
this.level.Indexes.Unlock();
// return number of elements
return numIdx;
}
else
{
this.level.Indexes.Unlock();
return 0;
}
}
}
/// <summary>
/// Writes a specified number of shorts.
/// </summary>
/// <param name="writer"></param>
/// <param name="count">Number of values to write.</param>
/// <param name="src">Pointer that holds the values.</param>
protected void WriteShorts( BinaryWriter writer, int count, BufferBase src )
{
// blast the data into the buffer
#if !AXIOM_SAFE_ONLY
unsafe
#endif
{
var pointer = src.ToShortPointer();
for ( var i = 0; i < count; i++ )
{
writer.Write( pointer[ i ] );
}
}
}
public override void WriteData( int offset, int length, BufferBase src, bool discardWholeBuffer )
{
//Update the shadow buffer
if ( useShadowBuffer )
{
var destData = shadowBuffer.Lock( offset, length, discardWholeBuffer ? BufferLocking.Discard : BufferLocking.Normal );
src = destData;
shadowBuffer.Unlock();
}
if ( offset == 0 && length == sizeInBytes )
{
GL.BufferData( GLenum.ArrayBuffer, new IntPtr( sizeInBytes ), src.Pin(), GLESHardwareBufferManager.GetGLUsage( usage ) );
GLESConfig.GlCheckError( this );
}
else
{
if ( discardWholeBuffer )
{
GL.BufferData( GLenum.ArrayBuffer, new IntPtr( sizeInBytes ), IntPtr.Zero, GLESHardwareBufferManager.GetGLUsage( usage ) );
GLESConfig.GlCheckError( this );
}
GL.BufferSubData( GLenum.ArrayBuffer, new IntPtr( offset ), new IntPtr( length ), src.Pin() );
GLESConfig.GlCheckError( this );
}
}
/// <summary>
/// </summary>
/// <param name="offset"> </param>
/// <param name="length"> </param>
/// <param name="src"> </param>
/// <param name="discardWholeBuffer"> </param>
public override void WriteData( int offset, int length, BufferBase src, bool discardWholeBuffer )
{
OpenGL.BindBuffer( All.ElementArrayBuffer, this._bufferId );
GLESConfig.GlCheckError( this );
// Update the shadow buffer
if ( useShadowBuffer )
{
var destData = shadowBuffer.Lock( offset, length, discardWholeBuffer ? BufferLocking.Discard : BufferLocking.Normal );
Memory.Copy( src, destData, length );
shadowBuffer.Unlock();
}
var srcPtr = src.Ptr;
if ( offset == 0 && length == sizeInBytes )
{
OpenGL.BufferData( All.ElementArrayBuffer, new IntPtr( sizeInBytes ), ref srcPtr, GLESHardwareBufferManager.GetGLUsage( usage ) );
GLESConfig.GlCheckError( this );
}
else
{
if ( discardWholeBuffer )
{
OpenGL.BufferData( All.ElementArrayBuffer, new IntPtr( sizeInBytes ), IntPtr.Zero, GLESHardwareBufferManager.GetGLUsage( usage ) );
GLESConfig.GlCheckError( this );
}
// Now update the real buffer
OpenGL.BufferSubData( All.ElementArrayBuffer, new IntPtr( offset ), new IntPtr( length ), ref srcPtr );
GLESConfig.GlCheckError( this );
}
if ( src.Ptr != srcPtr )
{
LogManager.Instance.Write( "[GLES2] HardwareIndexBuffer.WriteData - buffer pointer modified by GL.BufferData." );
}
}
/// <summary>
/// </summary>
/// <param name="vertexSize"> </param>
/// <param name="numVertices"> </param>
/// <param name="usage"> </param>
public GLDefaultHardwareVertexBuffer(VertexDeclaration declaration, int numVertices, BufferUsage usage)
: base( null, declaration, numVertices, usage, true, false )
{
this._data = new byte[ declaration.GetVertexSize() * numVertices ];
this._dataPtr = BufferBase.Wrap( this._data );
}
protected override BufferBase LockImpl( int offset, int length, BufferLocking locking )
{
if ( IsLocked )
{
throw new AxiomException( "Invalid attempt to lock an index buffer that has already been locked." );
}
BufferBase retPtr;
var glBufManager = ( HardwareBufferManager.Instance as GLESHardwareBufferManager );
//Try to use scratch buffers for smaller buffers
if ( length < glBufManager.MapBufferThreshold )
{
retPtr = glBufManager.AllocateScratch( length );
if ( retPtr != null )
{
this._lockedToScratch = true;
this._scratchOffset = offset;
this._scratchSize = length;
this._scratchPtr = retPtr;
this._scratchUploadOnUnlock = ( locking != BufferLocking.ReadOnly );
if ( locking != BufferLocking.Discard )
{
//have to read back the data before returning the pointer
this.ReadData( offset, length, retPtr );
}
}
}
else
{
throw new AxiomException( "Invalid Buffer lockSize" );
}
if ( retPtr == null )
{
GLenum access = GLenum.Zero;
( Root.Instance.RenderSystem as GLESRenderSystem ).BindGLBuffer( GLenum.ArrayBuffer, this._bufferID );
if ( locking == BufferLocking.Discard )
{
//Discard the buffer
GL.BufferData( GLenum.ArrayBuffer, new IntPtr( sizeInBytes ), IntPtr.Zero, GLESHardwareBufferManager.GetGLUsage( usage ) );
GLESConfig.GlCheckError( this );
}
if ( ( usage & BufferUsage.WriteOnly ) == BufferUsage.WriteOnly )
{
access = GLenum.WriteOnlyOes;
}
var pbuffer = GL.Oes.MapBuffer( GLenum.ArrayBuffer, access );
GLESConfig.GlCheckError( this );
if ( pbuffer == IntPtr.Zero )
{
throw new AxiomException( "Vertex Buffer: Out of memory" );
}
//return offsetted
retPtr = BufferBase.Wrap( pbuffer, sizeInBytes ) + offset;
this._lockedToScratch = false;
}
isLocked = true;
return retPtr;
}
public override void WriteData( int offset, int length, BufferBase source, bool discardWholeBuffer )
{
throw new AxiomException( "Writing a byte range is not implemented. Use BlitToMemory." );
}
public override void WriteData( int offset, int length, BufferBase src, bool discardWholeBuffer )
{
// There is no functional interface in D3D, just do via manual
// lock, copy & unlock
// lock the buffer real quick
var dest = Lock( offset, length, discardWholeBuffer ? BufferLocking.Discard : BufferLocking.Normal );
// copy that data in there
Memory.Copy( src, dest, length );
// unlock the buffer
Unlock();
}
public override void ReadData( int offset, int length, BufferBase dest )
{
throw new AxiomException( "Reading a byte range is not implemented. Use BlitToMemory." );
}
/// <summary>
///
/// </summary>
/// <param name="offset"></param>
/// <param name="length"></param>
/// <param name="dest"></param>
public override void ReadData( int offset, int length, BufferBase dest )
{
if ( useShadowBuffer )
{
// lock the buffer for reading
var src = shadowBuffer.Lock( offset, length, BufferLocking.ReadOnly );
// copy that data in there
Memory.Copy( src, dest, length );
// unlock the buffer
shadowBuffer.Unlock();
}
else
{
Gl.glBindBufferARB( Gl.GL_ARRAY_BUFFER_ARB, this.bufferID );
Gl.glGetBufferSubDataARB( Gl.GL_ARRAY_BUFFER_ARB, new IntPtr( offset ), new IntPtr( length ), dest.Pin() );
// TAO 2.0
dest.UnPin();
//Gl.glGetBufferSubDataARB(
// Gl.GL_ARRAY_BUFFER_ARB,
// offset,
// length,
// dest );
}
}
/// <summary>
///
/// </summary>
/// <param name="offset"></param>
/// <param name="length"></param>
/// <param name="src"></param>
/// <param name="discardWholeBuffer"></param>
public override void WriteData( int offset, int length, BufferBase src, bool discardWholeBuffer )
{
Gl.glBindBufferARB( Gl.GL_ARRAY_BUFFER_ARB, this.bufferID );
if ( useShadowBuffer )
{
// lock the buffer for reading
var dest = shadowBuffer.Lock( offset, length, discardWholeBuffer ? BufferLocking.Discard : BufferLocking.Normal );
// copy that data in there
Memory.Copy( src, dest, length );
// unlock the buffer
shadowBuffer.Unlock();
}
if ( discardWholeBuffer )
{
Gl.glBufferDataARB( Gl.GL_ARRAY_BUFFER_ARB, new IntPtr( sizeInBytes ), IntPtr.Zero, GLHelper.ConvertEnum( usage ) );
// TAO 2.0
//Gl.glBufferDataARB( Gl.GL_ARRAY_BUFFER_ARB,
// sizeInBytes,
// IntPtr.Zero,
// GLHelper.ConvertEnum( usage ) );
}
Gl.glBufferSubDataARB( Gl.GL_ARRAY_BUFFER_ARB, new IntPtr( offset ), new IntPtr( length ), src.Pin() ); // TAO 2.0
src.UnPin();
//Gl.glBufferSubDataARB(
// Gl.GL_ARRAY_BUFFER_ARB,
// offset,
// length,
// src );
}
protected void WriteGeometryVertexBufferData( BinaryWriter writer, int count, BufferBase buf )
{
var start_offset = writer.Seek( 0, SeekOrigin.Current );
WriteChunk( writer, MeshChunkID.GeometryVertexBufferData, 0 );
WriteBytes( writer, count, buf );
var end_offset = writer.Seek( 0, SeekOrigin.Current );
writer.Seek( (int)start_offset, SeekOrigin.Begin );
WriteChunk( writer, MeshChunkID.GeometryVertexBufferData, (int)( end_offset - start_offset ) );
writer.Seek( (int)end_offset, SeekOrigin.Begin );
}
/// <summary>
/// </summary>
/// <param name="offset"> </param>
/// <param name="length"> </param>
/// <param name="src"> </param>
/// <param name="discardWholeBuffer"> </param>
public override void WriteData( int offset, int length, BufferBase src, bool discardWholeBuffer )
{
Contract.Requires( ( offset + length ) <= sizeInBytes );
// ignore discard, memory is not guaranteed to be zeroised
Memory.Copy( src, this._dataPtr + offset, length );
}
public int StitchEdge( Neighbor neighbor, int hiLOD, int loLOD, bool omitFirstTri, bool omitLastTri, BufferBase ppIdx )
#endif
{
Debug.Assert( loLOD > hiLOD, "TerrainZoneRenderable.StitchEdge" );
/*
Now do the stitching; we can stitch from any level to any level.
The stitch pattern is like this for each pair of vertices in the lower LOD
(excuse the poor ascii art):
lower LOD
*-----------*
|\ \ 3 / /|
|1\2 \ / 4/5|
*--*--*--*--*
higher LOD
The algorithm is, for each pair of lower LOD vertices:
1. Iterate over the higher LOD vertices, generating tris connected to the
first lower LOD vertex, up to and including 1/2 the span of the lower LOD
over the higher LOD (tris 1-2). Skip the first tri if it is on the edge
of the tile and that edge is to be stitched itself.
2. Generate a single tri for the middle using the 2 lower LOD vertices and
the middle vertex of the higher LOD (tri 3).
3. Iterate over the higher LOD vertices from 1/2 the span of the lower LOD
to the end, generating tris connected to the second lower LOD vertex
(tris 4-5). Skip the last tri if it is on the edge of a tile and that
edge is to be stitched itself.
The same algorithm works for all edges of the patch; stitching is done
clockwise so that the origin and steps used change, but the general
approach does not.
*/
// Get pointer to be updated
var pIdx = ppIdx.ToUShortPointer();
var idx = 0;
// Work out the steps ie how to increment indexes
// Step from one vertex to another in the high detail version
var step = 1 << hiLOD;
// Step from one vertex to another in the low detail version
var superstep = 1 << loLOD;
// Step half way between low detail steps
var halfsuperstep = superstep >> 1;
// Work out the starting points and sign of increments
// We always work the strip clockwise
int startx, starty, endx, rowstep;
startx = starty = endx = rowstep = 0;
var horizontal = false;
switch ( neighbor )
{
case Neighbor.NORTH:
startx = starty = 0;
endx = this.mOptions.tileSize - 1;
rowstep = step;
horizontal = true;
break;
case Neighbor.SOUTH:
// invert x AND y direction, helps to keep same winding
startx = starty = this.mOptions.tileSize - 1;
endx = 0;
rowstep = -step;
step = -step;
superstep = -superstep;
halfsuperstep = -halfsuperstep;
horizontal = true;
break;
case Neighbor.EAST:
startx = 0;
endx = this.mOptions.tileSize - 1;
starty = this.mOptions.tileSize - 1;
rowstep = -step;
horizontal = false;
break;
case Neighbor.WEST:
startx = this.mOptions.tileSize - 1;
endx = 0;
starty = 0;
rowstep = step;
step = -step;
superstep = -superstep;
halfsuperstep = -halfsuperstep;
horizontal = false;
break;
}
var numIndexes = 0;
for ( var j = startx; j != endx; j += superstep )
{
int k;
for ( k = 0; k != halfsuperstep; k += step )
{
var jk = j + k;
//skip the first bit of the corner?
if ( j != startx || k != 0 || !omitFirstTri )
{
if ( horizontal )
{
pIdx[ idx++ ] = Index( jk, starty + rowstep );
numIndexes++; // original order: 2
pIdx[ idx++ ] = Index( jk + step, starty + rowstep );
numIndexes++; // original order: 3
pIdx[ idx++ ] = Index( j, starty );
numIndexes++; // original order: 1
}
else
{
pIdx[ idx++ ] = Index( starty + rowstep, jk );
numIndexes++; // original order: 2
pIdx[ idx++ ] = Index( starty + rowstep, jk + step );
numIndexes++; // original order: 3
pIdx[ idx++ ] = Index( starty, j );
numIndexes++; // original order: 1
}
}
}
// Middle tri
if ( horizontal )
{
pIdx[ idx++ ] = Index( j + halfsuperstep, starty + rowstep );
numIndexes++; // original order: 2
pIdx[ idx++ ] = Index( j + superstep, starty );
numIndexes++; // original order: 3
pIdx[ idx++ ] = Index( j, starty );
numIndexes++; // original order: 1
}
else
{
pIdx[ idx++ ] = Index( starty + rowstep, j + halfsuperstep );
numIndexes++; // original order: 2
pIdx[ idx++ ] = Index( starty, j + superstep );
numIndexes++; // original order: 3
pIdx[ idx++ ] = Index( starty, j );
numIndexes++; // original order: 1
}
for ( k = halfsuperstep; k != superstep; k += step )
{
var jk = j + k;
if ( j != endx - superstep || k != superstep - step || !omitLastTri )
{
if ( horizontal )
{
pIdx[ idx++ ] = Index( jk, starty + rowstep );
numIndexes++; // original order: 2
pIdx[ idx++ ] = Index( jk + step, starty + rowstep );
numIndexes++; // original order: 3
pIdx[ idx++ ] = Index( j + superstep, starty );
numIndexes++; // original order: 1
}
else
{
pIdx[ idx++ ] = Index( starty + rowstep, jk );
numIndexes++; // original order: 2
pIdx[ idx++ ] = Index( starty + rowstep, jk + step );
numIndexes++; // original order: 3
pIdx[ idx++ ] = Index( starty, j + superstep );
numIndexes++; // original order: 1
}
}
}
}
ppIdx.Ptr += idx*sizeof ( ushort );
return numIndexes;
}
/// <summary>
/// </summary>
/// <param name="offset"> </param>
/// <param name="length"> </param>
/// <param name="dest"> </param>
public override void ReadData( int offset, int length, BufferBase dest )
{
Contract.Requires( ( offset + length ) <= sizeInBytes );
Memory.Copy( this._dataPtr + offset, dest, length );
}
public override void ReadData( int offset, int length, BufferBase dest )
{
if ( useShadowBuffer )
{
var srcData = shadowBuffer.Lock( offset, length, BufferLocking.ReadOnly );
dest = srcData;
shadowBuffer.Unlock();
}
else
{
throw new AxiomException( "Read hardware buffer is not supported" );
}
}
private void _flipEndian( BufferBase pData, int size, int count )
{
#if AXIOM_BIG_ENDIAN
for ( var index = 0; index < count; index++ )
{
using ( var data = pData + ( index * size ) )
_flipEndian( data, size );
}
#endif
}
unsafe public int StitchEdge( Neighbor neighbor, int hiLOD, int loLOD, bool omitFirstTri, bool omitLastTri, BufferBase ppIdx )
private void _flipEndian( BufferBase pData, int size )
{
#if AXIOM_BIG_ENDIAN
byte swapByte;
#if !AXIOM_SAFE_ONLY
unsafe
#endif
{
var ptr = pData.ToBytePointer();
for ( var byteIndex = 0; byteIndex < size / 2; byteIndex++ )
{
swapByte = ptr[ byteIndex ];
ptr[ byteIndex ] = ptr[ size - byteIndex - 1 ];
ptr[ size - byteIndex - 1 ] = swapByte;
}
}
#endif
}
/// <summary>
/// Caches a face group for imminent rendering.
/// </summary>
protected int CacheGeometry( BufferBase indexes, BspStaticFaceGroup faceGroup )
{
// Skip sky always
if ( faceGroup.isSky )
{
return 0;
}
int idxStart = 0;
int numIdx = 0;
int vertexStart = 0;
if ( faceGroup.type == FaceGroup.FaceList )
{
idxStart = faceGroup.elementStart;
numIdx = faceGroup.numElements;
vertexStart = faceGroup.vertexStart;
}
else if ( faceGroup.type == FaceGroup.Patch )
{
idxStart = faceGroup.patchSurf.IndexOffset;
numIdx = faceGroup.patchSurf.CurrentIndexCount;
vertexStart = faceGroup.patchSurf.VertexOffset;
}
else
{
// Unsupported face type
return 0;
}
#if !AXIOM_SAFE_ONLY
unsafe
#endif
{
// Offset the indexes here
// we have to do this now rather than up-front because the
// indexes are sometimes reused to address different vertex chunks
var idxSize = this.level.Indexes.IndexSize;
var idxSrc = this.level.Indexes.Lock( idxStart*idxSize, numIdx*idxSize, BufferLocking.ReadOnly );
if ( this.level.Indexes.Type == IndexType.Size16 )
{
var src = idxSrc.ToUShortPointer();
var pIndexes = indexes.ToUShortPointer();
for ( int i = 0; i < numIdx; i++ )
{
pIndexes[ i ] = (ushort)( src[ i ] + vertexStart );
}
}
else
{
var src = idxSrc.ToUIntPointer();
var pIndexes = indexes.ToUIntPointer();
for ( int i = 0; i < numIdx; i++ )
{
pIndexes[ i ] = (uint)( src[ i ] + vertexStart );
}
}
this.level.Indexes.Unlock();
}
// return number of elements
return numIdx;
}
public override void ReadData( int offset, int length, BufferBase dest )
{
// There is no functional interface in D3D, just do via manual
// lock, copy & unlock
// lock the buffer for reading
var src = Lock( offset, length, BufferLocking.ReadOnly );
// copy that data in there
Memory.Copy( src, dest, length );
// unlock the buffer
Unlock();
}
/// <summary>
/// </summary>
/// <param name="offset"> </param>
/// <param name="length"> </param>
/// <param name="locking"> </param>
/// <returns> </returns>
protected override BufferBase LockImpl( int offset, int length, BufferLocking locking )
{
All access = 0;
if ( isLocked )
{
throw new AxiomException( "Invalid attempt to lock an index buffer that has already been locked" );
}
BufferBase retPtr = null;
if ( length < MapBufferThreshold )
{
retPtr = ( (GLESHardwareBufferManager) HardwareBufferManager.Instance ).AllocateScratch( length );
if ( retPtr != null )
{
this._lockedToScratch = true;
this._scratchOffset = offset;
this._scratchSize = length;
this._scratchPtr = retPtr;
this._scratchUploadOnUnlock = ( locking != BufferLocking.ReadOnly );
if ( locking != BufferLocking.Discard )
{
this.ReadData( offset, length, retPtr );
}
}
}
else
{
throw new AxiomException( "Invalid Buffer lockSize" );
}
if ( retPtr == null )
{
OpenGL.BindBuffer( All.ElementArrayBuffer, this._bufferId );
GLESConfig.GlCheckError( this );
// Use glMapBuffer
if ( locking == BufferLocking.Discard )
{
OpenGL.BufferData( All.ElementArrayBuffer, new IntPtr( sizeInBytes ), IntPtr.Zero, GLESHardwareBufferManager.GetGLUsage( usage ) );
GLESConfig.GlCheckError( this );
}
if ( ( usage & BufferUsage.WriteOnly ) != 0 )
{
access = All.WriteOnlyOes;
}
IntPtr pBuffer = OpenGLOES.MapBuffer( All.ElementArrayBuffer, access );
GLESConfig.GlCheckError( this );
if ( pBuffer == IntPtr.Zero )
{
throw new AxiomException( "Index Buffer: Out of memory" );
}
unsafe
{
// return offset
retPtr = BufferBase.Wrap( pBuffer, sizeInBytes );
}
this._lockedToScratch = false;
}
isLocked = true;
return retPtr;
}
/// <summary>
/// </summary>
/// <param name="idxType"> </param>
/// <param name="numIndexes"> </param>
/// <param name="usage"> </param>
public GLDefaultHardwareIndexBuffer( IndexType idxType, int numIndexes, BufferUsage usage )
: base( null, idxType, numIndexes, usage, true, false ) // always software, never shadowed
{
this._data = new byte[ sizeInBytes ];
this._dataPtr = BufferBase.Wrap( this._data );
}
public D3D9HardwareIndexBuffer( HardwareBufferManagerBase manager, IndexType type, int numIndices, BufferUsage usage,
bool useSystemMemory, bool useShadowBuffer )
: base( manager, type, numIndices, usage, useSystemMemory, useShadowBuffer )
{
//Entering critical section
this.LockDeviceAccess();
this._mapDeviceToBufferResources = new Dictionary<D3D9.Device, BufferResources>();
#if AXIOM_D3D_MANAGE_BUFFERS
var eResourcePool = useSystemMemory ? D3D9.Pool.SystemMemory : // If not system mem, use managed pool UNLESS buffer is discardable
// if discardable, keeping the software backing is expensive
( ( usage & BufferUsage.Discardable ) != 0 ) ? D3D9.Pool.Default : D3D9.Pool.Managed;
#else
var eResourcePool = useSystemMemory ? D3D9.Pool.SystemMemory : D3D9.Pool.Default;
#endif
// Set the desired memory pool.
this._bufferDesc.Pool = eResourcePool;
// Allocate the system memory buffer.
this._systemMemoryBuffer = BufferBase.Wrap( new byte[sizeInBytes] );
// Case we have to create this buffer resource on loading.
if ( D3D9RenderSystem.ResourceManager.CreationPolicy == D3D9ResourceManager.ResourceCreationPolicy.CreateOnAllDevices )
{
foreach ( var d3d9Device in D3D9RenderSystem.ResourceCreationDevices )
{
CreateBuffer( d3d9Device, this._bufferDesc.Pool );
}
}
D3D9RenderSystem.ResourceManager.NotifyResourceCreated( this );
//Leaving critical section
this.UnlockDeviceAccess();
}
/// <summary>
/// Updates buffer resources from system memory buffer.
/// </summary>
private bool _updateBufferResources( BufferBase systemMemoryBuffer, ref BufferResources bufferResources )
{
Contract.RequiresNotNull( bufferResources, "Cannot update BufferResources in D3D9HardwareIndexBuffer!" );
Contract.RequiresNotNull( bufferResources.IndexBuffer, "Cannot update BufferResources in D3D9HardwareIndexBuffer!" );
Contract.Requires( bufferResources.IsOutOfDate );
DX.DataStream dstBytes;
// Lock the buffer
try
{
dstBytes = bufferResources.IndexBuffer.Lock( bufferResources.LockOffset, bufferResources.LockLength,
D3D9Helper.ConvertEnum( bufferResources.LockOptions, usage ) );
}
catch ( Exception ex )
{
throw new AxiomException( "Cannot lock D3D9 index buffer!", ex );
}
using ( var src = systemMemoryBuffer + bufferResources.LockOffset )
{
using ( var dest = BufferBase.Wrap( dstBytes.DataPointer, (int)dstBytes.Length ) )
{
Memory.Copy( src, dest, bufferResources.LockLength );
}
}
// Unlock the buffer.
var hr = bufferResources.IndexBuffer.Unlock();
if ( hr.Failure )
{
throw new AxiomException( "Cannot unlock D3D9 index buffer: {0}", hr.ToString() );
}
bufferResources.IsOutOfDate = false;
bufferResources.LockOffset = sizeInBytes;
bufferResources.LockLength = 0;
bufferResources.LockOptions = BufferLocking.Normal;
return true;
}