protected override void BindSurfaceImpl(int attachment, RenderTexture target)
{
Contract.Requires(attachment < Config.MaxMultipleRenderTargets);
// Get buffer and surface to bind to
var buffer = (D3D9HardwarePixelBuffer)(target["BUFFER"]);
Proclaim.NotNull(buffer);
// Find first non null target
int y;
for (y = 0; y < Config.MaxMultipleRenderTargets && this._renderTargets[y] == null; ++y)
{
;
}
if (y != Config.MaxMultipleRenderTargets)
{
// If there is another target bound, compare sizes
if (this._renderTargets[y].Width != buffer.Width || this._renderTargets[y].Height != buffer.Height)
{
throw new AxiomException("MultiRenderTarget surfaces are not the same size.");
}
if (!Root.Instance.RenderSystem.Capabilities.HasCapability(Capabilities.MRTDifferentBitDepths) &&
(PixelUtil.GetNumElemBits(this._renderTargets[y].Format) != PixelUtil.GetNumElemBits(buffer.Format)))
{
throw new AxiomException("MultiRenderTarget surfaces are not of same bit depth and hardware requires it");
}
}
this._renderTargets[attachment] = buffer;
_checkAndUpdate();
}
public void Rebind(XnaHardwarePixelBuffer buffer)
{
pixelBuffer = buffer;
width = pixelBuffer.Width;
height = pixelBuffer.Height;
colorDepth = PixelUtil.GetNumElemBits(buffer.Format);
}
public bool IsEquivalentFormatSupported(TextureType ttype, PixelFormat format, TextureUsage usage)
{
PixelFormat supportedFormat = GetNativeFormat(ttype, format, usage);
// Assume that same or greater number of bits means quality not degraded
return(PixelUtil.GetNumElemBits(supportedFormat) >= PixelUtil.GetNumElemBits(format));
}
public RenderTexture(HardwarePixelBuffer buffer, int zOffset)
{
pixelBuffer = buffer;
this.zOffset = zOffset;
priority = RenderTargetPriority.High;
width = buffer.Width;
height = buffer.Height;
colorDepth = PixelUtil.GetNumElemBits(buffer.Format);
}
private FI.FIBITMAP _encode(Stream input, CodecData codecData)
{
var ret = new FI.FIBITMAP();
ret.SetNull();
var imgData = codecData as ImageData;
if (imgData != null)
{
var data = new byte[(int)input.Length];
input.Read(data, 0, data.Length);
var dataPtr = BufferBase.Wrap(data);
var src = new PixelBox(imgData.width, imgData.height, imgData.depth, imgData.format, dataPtr);
// The required format, which will adjust to the format
// actually supported by FreeImage.
var requiredFormat = imgData.format;
// determine the settings
var imageType = FI.FREE_IMAGE_TYPE.FIT_UNKNOWN;
var determiningFormat = imgData.format;
switch (determiningFormat)
{
case PixelFormat.R5G6B5:
case PixelFormat.B5G6R5:
case PixelFormat.R8G8B8:
case PixelFormat.B8G8R8:
case PixelFormat.A8R8G8B8:
case PixelFormat.X8R8G8B8:
case PixelFormat.A8B8G8R8:
case PixelFormat.X8B8G8R8:
case PixelFormat.B8G8R8A8:
case PixelFormat.R8G8B8A8:
case PixelFormat.A4L4:
case PixelFormat.BYTE_LA:
case PixelFormat.R3G3B2:
case PixelFormat.A4R4G4B4:
case PixelFormat.A1R5G5B5:
case PixelFormat.A2R10G10B10:
case PixelFormat.A2B10G10R10:
// I'd like to be able to use r/g/b masks to get FreeImage to load the data
// in it's existing format, but that doesn't work, FreeImage needs to have
// data in RGB[A] (big endian) and BGR[A] (little endian), always.
if (PixelUtil.HasAlpha(determiningFormat))
{
if (FI.FreeImageEngine.IsLittleEndian)
{
requiredFormat = PixelFormat.BYTE_BGRA;
}
else
{
requiredFormat = PixelFormat.BYTE_RGBA;
}
}
else
{
if (FI.FreeImageEngine.IsLittleEndian)
{
requiredFormat = PixelFormat.BYTE_BGR;
}
else
{
requiredFormat = PixelFormat.BYTE_RGB;
}
}
imageType = FI.FREE_IMAGE_TYPE.FIT_BITMAP;
break;
case PixelFormat.L8:
case PixelFormat.A8:
imageType = FI.FREE_IMAGE_TYPE.FIT_BITMAP;
break;
case PixelFormat.L16:
imageType = FI.FREE_IMAGE_TYPE.FIT_UINT16;
break;
case PixelFormat.SHORT_GR:
requiredFormat = PixelFormat.SHORT_RGB;
break;
case PixelFormat.SHORT_RGB:
imageType = FI.FREE_IMAGE_TYPE.FIT_RGB16;
break;
case PixelFormat.SHORT_RGBA:
imageType = FI.FREE_IMAGE_TYPE.FIT_RGBA16;
break;
case PixelFormat.FLOAT16_R:
requiredFormat = PixelFormat.FLOAT32_R;
break;
case PixelFormat.FLOAT32_R:
imageType = FI.FREE_IMAGE_TYPE.FIT_FLOAT;
break;
case PixelFormat.FLOAT16_GR:
case PixelFormat.FLOAT16_RGB:
case PixelFormat.FLOAT32_GR:
requiredFormat = PixelFormat.FLOAT32_RGB;
break;
case PixelFormat.FLOAT32_RGB:
imageType = FI.FREE_IMAGE_TYPE.FIT_RGBF;
break;
case PixelFormat.FLOAT16_RGBA:
requiredFormat = PixelFormat.FLOAT32_RGBA;
break;
case PixelFormat.FLOAT32_RGBA:
imageType = FI.FREE_IMAGE_TYPE.FIT_RGBAF;
break;
default:
throw new AxiomException("Not Supported image format :{0}", determiningFormat.ToString());
} //end switch
// Check support for this image type & bit depth
if (!FI.FreeImage.FIFSupportsExportType((FI.FREE_IMAGE_FORMAT) this._freeImageType, imageType) ||
!FI.FreeImage.FIFSupportsExportBPP((FI.FREE_IMAGE_FORMAT) this._freeImageType,
PixelUtil.GetNumElemBits(requiredFormat)))
{
// Ok, need to allocate a fallback
// Only deal with RGBA . RGB for now
switch (requiredFormat)
{
case PixelFormat.BYTE_RGBA:
requiredFormat = PixelFormat.BYTE_RGB;
break;
case PixelFormat.BYTE_BGRA:
requiredFormat = PixelFormat.BYTE_BGR;
break;
default:
break;
}
}
var conversionRequired = false;
input.Position = 0;
var srcData = new byte[(int)input.Length];
input.Read(srcData, 0, srcData.Length);
var srcDataPtr = BufferBase.Wrap(srcData);
// Check BPP
var bpp = PixelUtil.GetNumElemBits(requiredFormat);
if (!FI.FreeImage.FIFSupportsExportBPP((FI.FREE_IMAGE_FORMAT) this._freeImageType, bpp))
{
if (bpp == 32 && PixelUtil.HasAlpha(imgData.format) &&
FI.FreeImage.FIFSupportsExportBPP((FI.FREE_IMAGE_FORMAT) this._freeImageType, 24))
{
// drop to 24 bit (lose alpha)
if (FI.FreeImage.IsLittleEndian())
{
requiredFormat = PixelFormat.BYTE_BGR;
}
else
{
requiredFormat = PixelFormat.BYTE_RGB;
}
bpp = 24;
}
else if (bpp == 128 && PixelUtil.HasAlpha(imgData.format) &&
FI.FreeImage.FIFSupportsExportBPP((FI.FREE_IMAGE_FORMAT) this._freeImageType, 96))
{
// drop to 96-bit floating point
requiredFormat = PixelFormat.FLOAT32_RGB;
}
}
var convBox = new PixelBox(imgData.width, imgData.height, 1, requiredFormat);
if (requiredFormat != imgData.format)
{
conversionRequired = true;
// Allocate memory
var convData = new byte[convBox.ConsecutiveSize];
convBox.Data = BufferBase.Wrap(convData);
// perform conversion and reassign source
var newSrc = new PixelBox(imgData.width, imgData.height, 1, imgData.format, dataPtr);
PixelConverter.BulkPixelConversion(newSrc, convBox);
srcDataPtr = convBox.Data;
}
ret = FI.FreeImage.AllocateT(imageType, imgData.width, imgData.height, bpp);
if (ret.IsNull)
{
if (conversionRequired)
{
srcDataPtr.SafeDispose();
convBox = null;
}
throw new AxiomException("FreeImage.AllocateT failed - possibly out of memory. ");
}
if (requiredFormat == PixelFormat.L8 || requiredFormat == PixelFormat.A8)
{
// Must explicitly tell FreeImage that this is greyscale by setting
// a "grey" palette (otherwise it will save as a normal RGB
// palettized image).
var tmp = FI.FreeImage.ConvertToGreyscale(ret);
FI.FreeImage.Unload(ret);
ret = tmp;
}
var dstPitch = (int)FI.FreeImage.GetPitch(ret);
var srcPitch = imgData.width * PixelUtil.GetNumElemBytes(requiredFormat);
// Copy data, invert scanlines and respect FreeImage pitch
var pSrc = srcDataPtr;
using (var pDest = BufferBase.Wrap(FI.FreeImage.GetBits(ret), imgData.height * srcPitch))
{
var byteSrcData = pSrc;
var byteDstData = pDest;
for (var y = 0; y < imgData.height; ++y)
{
byteSrcData += (imgData.height - y - 1) * srcPitch;
Memory.Copy(pSrc, pDest, srcPitch);
byteDstData += dstPitch;
}
}
if (conversionRequired)
{
// delete temporary conversion area
srcDataPtr.SafeDispose();
convBox = null;
}
}
return(ret);
}
/// <summary>
/// Detect allowed FBO formats
/// </summary>
private void _detectFBOFormats()
{
// Try all formats, and report which ones work as target
int fb, tid;
int old_drawbuffer, old_readbuffer;
int target = Gl.GL_TEXTURE_2D;
Gl.glGetIntegerv(Gl.GL_DRAW_BUFFER, out old_drawbuffer);
Gl.glGetIntegerv(Gl.GL_READ_BUFFER, out old_readbuffer);
for (int x = 0; x < (int)PixelFormat.Count; ++x)
{
this._props[x].Valid = false;
// Fetch GL format token
int fmt = GLPixelUtil.GetGLInternalFormat((PixelFormat)x);
if (fmt == Gl.GL_NONE && x != 0)
{
continue;
}
// No test for compressed formats
if (PixelUtil.IsCompressed((PixelFormat)x))
{
continue;
}
// Buggy ATI cards *crash* on non-RGB(A) formats
int[] depths = PixelUtil.GetBitDepths((PixelFormat)x);
if (fmt != Gl.GL_NONE && this._atiMode && (depths[0] == 0 || depths[1] == 0 || depths[2] == 0))
{
continue;
}
// Buggy NVidia Drivers fail on 32Bit FP formats on Windows.
if (PixelUtil.IsFloatingPoint((PixelFormat)x) && PlatformManager.IsWindowsOS && !this._atiMode)
{
continue;
}
// Create and attach framebuffer
Gl.glGenFramebuffersEXT(1, out fb);
Gl.glBindFramebufferEXT(Gl.GL_FRAMEBUFFER_EXT, fb);
if (fmt != Gl.GL_NONE)
{
// Create and attach texture
Gl.glGenTextures(1, out tid);
Gl.glBindTexture(target, tid);
// Set some default parameters so it won't fail on NVidia cards
Gl.glTexParameteri(target, Gl.GL_TEXTURE_MAX_LEVEL, 0);
Gl.glTexParameteri(target, Gl.GL_TEXTURE_MIN_FILTER, Gl.GL_NEAREST);
Gl.glTexParameteri(target, Gl.GL_TEXTURE_MAG_FILTER, Gl.GL_NEAREST);
Gl.glTexParameteri(target, Gl.GL_TEXTURE_WRAP_S, Gl.GL_CLAMP_TO_EDGE);
Gl.glTexParameteri(target, Gl.GL_TEXTURE_WRAP_T, Gl.GL_CLAMP_TO_EDGE);
Gl.glTexImage2D(target, 0, fmt, PROBE_SIZE, PROBE_SIZE, 0, Gl.GL_RGBA, Gl.GL_UNSIGNED_BYTE, IntPtr.Zero);
Gl.glFramebufferTexture2DEXT(Gl.GL_FRAMEBUFFER_EXT, Gl.GL_COLOR_ATTACHMENT0_EXT, target, tid, 0);
}
else
{
// Draw to nowhere -- stencil/depth only
tid = 0;
Gl.glDrawBuffer(Gl.GL_NONE);
Gl.glReadBuffer(Gl.GL_NONE);
}
// Check status
int status = Gl.glCheckFramebufferStatusEXT(Gl.GL_FRAMEBUFFER_EXT);
// Ignore status in case of fmt==GL_NONE, because no implementation will accept
// a buffer without *any* attachment. Buffers with only stencil and depth attachment
// might still be supported, so we must continue probing.
if (fmt == Gl.GL_NONE || status == Gl.GL_FRAMEBUFFER_COMPLETE_EXT)
{
this._props[x].Valid = true;
var str = new StringBuilder();
str.AppendFormat("\tFBO {0} depth/stencil support: ", PixelUtil.GetFormatName((PixelFormat)x));
// For each depth/stencil formats
for (int depth = 0; depth < this._depthFormats.GetLength(0); ++depth)
{
if (this._depthFormats[depth] != GL_DEPTH24_STENCIL8_EXT)
{
// General depth/stencil combination
for (int stencil = 0; stencil < this._stencilFormats.GetLength(0); ++stencil)
{
//LogManager.Instance.Write( "Trying {0} D{1}S{2} ", PixelUtil.GetFormatName( (PixelFormat)x ), _depthBits[ depth ], _stencilBits[ stencil ] );
if (_tryFormat(this._depthFormats[depth], this._stencilFormats[stencil]))
{
/// Add mode to allowed modes
str.AppendFormat("D{0}S{1} ", this._depthBits[depth], this._stencilBits[stencil]);
FormatProperties.Mode mode;
mode.Depth = depth;
mode.Stencil = stencil;
this._props[x].Modes.Add(mode);
}
}
}
else
{
// Packed depth/stencil format
#if false
// Only query packed depth/stencil formats for 32-bit
// non-floating point formats (ie not R32!)
// Linux nVidia driver segfaults if you query others
if (!PlatformManager.IsWindowsOS &&
(PixelUtil.GetNumElemBits((PixelFormat)x) != 32 ||
PixelUtil.IsFloatingPoint((PixelFormat)x)))
{
continue;
}
#endif
if (_tryPackedFormat(this._depthFormats[depth]))
{
/// Add mode to allowed modes
str.AppendFormat("Packed-D{0}S8 ", this._depthBits[depth]);
FormatProperties.Mode mode;
mode.Depth = depth;
mode.Stencil = 0; // unuse
this._props[x].Modes.Add(mode);
}
}
}
LogManager.Instance.Write(str.ToString());
}
// Delete texture and framebuffer
Gl.glBindFramebufferEXT(Gl.GL_FRAMEBUFFER_EXT, 0);
Gl.glDeleteFramebuffersEXT(1, ref fb);
// Workaround for NVIDIA / Linux 169.21 driver problem
// see http://www.ogre3d.org/phpBB2/viewtopic.php?t=38037&start=25
Gl.glFinish();
Gl.glDeleteTextures(1, ref tid);
}
// It seems a bug in nVidia driver: glBindFramebufferEXT should restore
// draw and read buffers, but in some unclear circumstances it won't.
Gl.glDrawBuffer(old_drawbuffer);
Gl.glReadBuffer(old_readbuffer);
string fmtstring = "";
for (int x = 0; x < (int)PixelFormat.Count; ++x)
{
if (this._props[x].Valid)
{
fmtstring += PixelUtil.GetFormatName((PixelFormat)x) + " ";
}
}
LogManager.Instance.Write("[GL] : Valid FBO targets " + fmtstring);
}
public virtual void LoadImages(Image[] images)
{
if (images.Length < 1)
{
throw new AxiomException("Cannot load empty vector of images");
}
// Set desired texture size and properties from images[0]
this.srcWidth = this.width = images[0].Width;
this.srcHeight = this.height = images[0].Height;
this.srcDepth = this.depth = images[0].Depth;
// Get source image format and adjust if required
this.srcFormat = images[0].Format;
if (this.treatLuminanceAsAlpha && this.srcFormat == PixelFormat.L8)
{
this.srcFormat = PixelFormat.A8;
}
if (this.desiredFormat != PixelFormat.Unknown)
{
// If have desired format, use it
this.format = this.desiredFormat;
}
else
{
// Get the format according with desired bit depth
this.format = PixelUtil.GetFormatForBitDepths(this.srcFormat, this.desiredIntegerBitDepth,
this.desiredFloatBitDepth);
}
// The custom mipmaps in the image have priority over everything
var imageMips = images[0].NumMipMaps;
if (imageMips > 0)
{
this.mipmapCount = this.requestedMipmapCount = imageMips;
// Disable flag for auto mip generation
this.usage &= ~TextureUsage.AutoMipMap;
}
// Create the texture
CreateInternalResources();
// Check if we're loading one image with multiple faces
// or a vector of images representing the faces
int faces;
bool multiImage; // Load from multiple images?
if (images.Length > 1)
{
faces = images.Length;
multiImage = true;
}
else
{
faces = images[0].NumFaces;
multiImage = false;
}
// Check wether number of faces in images exceeds number of faces
// in this texture. If so, clamp it.
if (faces > FaceCount)
{
faces = FaceCount;
}
// Say what we're doing
if (TextureManager.Instance.Verbose)
{
var msg = new StringBuilder();
msg.AppendFormat("Texture: {0}: Loading {1} faces( {2}, {3}x{4}x{5} ) with", _name, faces,
PixelUtil.GetFormatName(images[0].Format), images[0].Width, images[0].Height,
images[0].Depth);
if (!(this.mipmapsHardwareGenerated && this.mipmapCount == 0))
{
msg.AppendFormat(" {0}", this.mipmapCount);
}
if ((this.usage & TextureUsage.AutoMipMap) == TextureUsage.AutoMipMap)
{
msg.AppendFormat("{0} generated mipmaps", this.mipmapsHardwareGenerated ? " hardware" : string.Empty);
}
else
{
msg.Append(" custom mipmaps");
}
msg.AppendFormat(" from {0}.\n\t", multiImage ? "multiple Images" : "an Image");
// Print data about first destination surface
var buf = GetBuffer(0, 0);
msg.AppendFormat(" Internal format is {0} , {1}x{2}x{3}.", PixelUtil.GetFormatName(buf.Format), buf.Width,
buf.Height, buf.Depth);
LogManager.Instance.Write(msg.ToString());
}
// Main loading loop
// imageMips == 0 if the image has no custom mipmaps, otherwise contains the number of custom mips
for (var mip = 0; mip <= imageMips; ++mip)
{
for (var i = 0; i < faces; ++i)
{
PixelBox src;
if (multiImage)
{
// Load from multiple images
src = images[i].GetPixelBox(0, mip);
}
else
{
// Load from faces of images[0]
src = images[0].GetPixelBox(i, mip);
}
// Sets to treated format in case is difference
src.Format = this.srcFormat;
if (this.gamma != 1.0f)
{
// Apply gamma correction
// Do not overwrite original image but do gamma correction in temporary buffer
var bufSize = PixelUtil.GetMemorySize(src.Width, src.Height, src.Depth, src.Format);
var buff = new byte[bufSize];
var buffer = BufferBase.Wrap(buff);
var corrected = new PixelBox(src.Width, src.Height, src.Depth, src.Format, buffer);
PixelConverter.BulkPixelConversion(src, corrected);
Image.ApplyGamma(corrected.Data, this.gamma, corrected.ConsecutiveSize, PixelUtil.GetNumElemBits(src.Format));
// Destination: entire texture. BlitFromMemory does
// the scaling to a power of two for us when needed
GetBuffer(i, mip).BlitFromMemory(corrected);
}
else
{
// Destination: entire texture. BlitFromMemory does
// the scaling to a power of two for us when needed
GetBuffer(i, mip).BlitFromMemory(src);
}
}
}
// Update size (the final size, not including temp space)
Size = FaceCount * PixelUtil.GetMemorySize(this.width, this.height, this.depth, this.format);
}
/// <summary>
///
/// </summary>
/// <param name="width"></param>
/// <param name="height"></param>
/// <param name="depth"></param>
/// <param name="format"></param>
private void SetSrcAttributes(int width, int height, int depth, PixelFormat format)
{
srcWidth = width;
srcHeight = height;
srcBpp = PixelUtil.GetNumElemBits(format);
// say to the world what we are doing
const string RenderTargetFormat = "[XNA] : Creating {0} RenderTarget, name : '{1}' with {2} mip map levels.";
const string TextureFormat = "[XNA] : Loading {0} Texture, image name : '{1}' with {2} mip map levels.";
switch (TextureType)
{
case TextureType.OneD:
if ((Usage & TextureUsage.RenderTarget) == TextureUsage.RenderTarget)
{
LogManager.Instance.Write(String.Format(RenderTargetFormat, TextureType.OneD, Name,
MipmapCount));
}
else
{
LogManager.Instance.Write(String.Format(TextureFormat, TextureType.OneD, Name, MipmapCount));
}
break;
case TextureType.TwoD:
if ((Usage & TextureUsage.RenderTarget) == TextureUsage.RenderTarget)
{
LogManager.Instance.Write(String.Format(RenderTargetFormat, TextureType.TwoD, Name,
MipmapCount));
}
else
{
LogManager.Instance.Write(String.Format(TextureFormat, TextureType.TwoD, Name, MipmapCount));
}
break;
case TextureType.ThreeD:
if ((Usage & TextureUsage.RenderTarget) == TextureUsage.RenderTarget)
{
LogManager.Instance.Write(String.Format(RenderTargetFormat, TextureType.ThreeD, Name,
MipmapCount));
}
else
{
LogManager.Instance.Write(String.Format(TextureFormat, TextureType.ThreeD, Name, MipmapCount));
}
break;
case TextureType.CubeMap:
if ((Usage & TextureUsage.RenderTarget) == TextureUsage.RenderTarget)
{
LogManager.Instance.Write(String.Format(RenderTargetFormat, TextureType.CubeMap, Name,
MipmapCount));
}
else
{
LogManager.Instance.Write(String.Format(TextureFormat, TextureType.CubeMap, Name, MipmapCount));
}
break;
default:
FreeInternalResources();
throw new Exception("Unknown texture type");
}
}
protected virtual void LoadImages(List <Image> images)
{
Debug.Assert(images.Count >= 1);
if (isLoaded)
{
log.InfoFormat("Unloading image: {0}", name);
Unload();
}
srcWidth = width = images[0].Width;
srcHeight = height = images[0].Height;
srcDepth = depth = images[0].Depth;
if (hasAlpha && images[0].Format == PixelFormat.L8)
{
format = PixelFormat.A8;
srcBpp = 8;
}
else
{
this.Format = images[0].Format;
}
if (finalBpp == 16)
{
switch (format)
{
case PixelFormat.R8G8B8:
case PixelFormat.X8R8G8B8:
format = PixelFormat.R5G6B5;
break;
case PixelFormat.B8G8R8:
case PixelFormat.X8B8G8R8:
format = PixelFormat.B5G6R5;
break;
case PixelFormat.A8R8G8B8:
case PixelFormat.R8G8B8A8:
case PixelFormat.A8B8G8R8:
case PixelFormat.B8G8R8A8:
format = PixelFormat.A4R4G4B4;
break;
default:
// use the original format
break;
}
}
// The custom mipmaps in the image have priority over everything
int imageMips = images[0].NumMipMaps;
if (imageMips > 0)
{
numMipmaps = imageMips;
usage &= ~TextureUsage.AutoMipMap;
}
// Create the texture
CreateInternalResources();
// Check if we're loading one image with multiple faces
// or a vector of images representing the faces
int faces;
bool multiImage; // Load from multiple images?
if (images.Count > 1)
{
faces = images.Count;
multiImage = true;
}
else
{
faces = images[0].NumFaces;
multiImage = false;
}
// Check wether number of faces in images exceeds number of faces
// in this texture. If so, clamp it.
if (faces > this.NumFaces)
{
faces = this.NumFaces;
}
// Say what we're doing
log.InfoFormat("Texture: {0}: Loading {1} faces({2},{3}x{4}x{5})",
name, faces, PixelUtil.GetFormatName(images[0].Format),
images[0].Width, images[0].Height, images[0].Depth);
#if NOT // crazy ogre logging
if (!(mMipmapsHardwareGenerated && mNumMipmaps == 0))
{
str << mNumMipmaps;
}
if (mUsage & TU_AUTOMIPMAP)
{
if (mMipmapsHardwareGenerated)
{
str << " hardware";
}
str << " generated mipmaps";
}
else
{
str << " custom mipmaps";
}
if (multiImage)
{
str << " from multiple Images.";
}
else
{
str << " from Image.";
}
// Scoped
{
// Print data about first destination surface
HardwarePixelBufferSharedPtr buf = getBuffer(0, 0);
str << " Internal format is " << PixelUtil::getFormatName(buf->getFormat()) <<
"," << buf->getWidth() << "x" << buf->getHeight() << "x" << buf->getDepth() << ".";
}
LogManager::getSingleton().logMessage(
LML_NORMAL, str.str());
#endif
// Main loading loop
// imageMips == 0 if the image has no custom mipmaps, otherwise contains the number of custom mips
for (int mip = 0; mip <= imageMips; ++mip)
{
for (int i = 0; i < faces; ++i)
{
PixelBox src;
if (multiImage)
{
// Load from multiple images
src = images[i].GetPixelBox(0, mip);
}
else
{
// Load from faces of images[0]
src = images[0].GetPixelBox(i, mip);
if (hasAlpha && src.Format == PixelFormat.L8)
{
src.Format = PixelFormat.A8;
}
}
if (gamma != 1.0f)
{
// Apply gamma correction
// Do not overwrite original image but do gamma correction in temporary buffer
IntPtr buffer = Marshal.AllocHGlobal(PixelUtil.GetMemorySize(src.Width, src.Height, src.Depth, src.Format));
try {
PixelBox corrected = new PixelBox(src.Width, src.Height, src.Depth, src.Format, buffer);
PixelUtil.BulkPixelConversion(src, corrected);
Image.ApplyGamma(corrected.Data, gamma, corrected.ConsecutiveSize, PixelUtil.GetNumElemBits(src.Format));
// Destination: entire texture. BlitFromMemory does the scaling to
// a power of two for us when needed
GetBuffer(i, mip).BlitFromMemory(corrected);
} finally {
Marshal.FreeHGlobal(buffer);
}
}
else
{
// Destination: entire texture. BlitFromMemory does the scaling to
// a power of two for us when needed
GetBuffer(i, mip).BlitFromMemory(src);
}
}
}
// Update size (the final size, not including temp space)
size = this.NumFaces * PixelUtil.GetMemorySize(width, height, depth, format);
isLoaded = true;
}
