uint32 UTextureCube::CalcTextureMemorySizeEnum( ETextureMipCount Enum ) const
{
if ( Enum == TMC_ResidentMips || Enum == TMC_AllMipsBiased )
{
return CalcTextureMemorySize( GetNumMips() - LODBias );
}
else
{
return CalcTextureMemorySize( GetNumMips() );
}
}
FTextureResource* UTextureCube::CreateResource()
{
FTextureResource* NewResource = NULL;
if (GetNumMips() > 0)
{
NewResource = new FTextureCubeResource(this);
}
return NewResource;
}
uint32 UTextureCube::CalcTextureMemorySize( int32 MipCount ) const
{
uint32 Size = 0;
if (PlatformData)
{
int32 SizeX = GetSizeX();
int32 SizeY = GetSizeY();
int32 NumMips = GetNumMips();
EPixelFormat Format = GetPixelFormat();
ensureMsgf(SizeX == SizeY, TEXT("Cubemap faces expected to be square. Actual sizes are: %i, %i"), SizeX, SizeY);
// Figure out what the first mip to use is.
int32 FirstMip = FMath::Max( 0, NumMips - MipCount );
FIntPoint MipExtents = CalcMipMapExtent(SizeX, SizeY, Format, FirstMip);
uint32 TextureAlign = 0;
uint64 TextureSize = RHICalcTextureCubePlatformSize(MipExtents.X, Format, NumMips, 0, TextureAlign);
Size = (uint32)TextureSize;
}
return Size;
}
bool WrappedOpenGL::Serialise_wglDXLockObjectsNV(SerialiserType &ser, GLResource Resource)
{
SERIALISE_ELEMENT(Resource);
SERIALISE_ELEMENT_LOCAL(textype, Resource.Namespace == eResBuffer
? eGL_NONE
: m_Textures[GetResourceManager()->GetID(Resource)].curType)
.Hidden();
const GLHookSet &gl = m_Real;
// buffer contents are easier to save
if(textype == eGL_NONE)
{
byte *Contents = NULL;
uint32_t length = 1;
// while writing, fetch the buffer's size and contents
if(ser.IsWriting())
{
gl.glGetNamedBufferParameterivEXT(Resource.name, eGL_BUFFER_SIZE, (GLint *)&length);
Contents = new byte[length];
GLuint oldbuf = 0;
gl.glGetIntegerv(eGL_COPY_READ_BUFFER_BINDING, (GLint *)&oldbuf);
gl.glBindBuffer(eGL_COPY_READ_BUFFER, Resource.name);
gl.glGetBufferSubData(eGL_COPY_READ_BUFFER, 0, (GLsizeiptr)length, Contents);
gl.glBindBuffer(eGL_COPY_READ_BUFFER, oldbuf);
}
SERIALISE_ELEMENT_ARRAY(Contents, length);
SERIALISE_CHECK_READ_ERRORS();
// restore on replay
if(IsReplayingAndReading())
{
uint32_t liveLength = 1;
gl.glGetNamedBufferParameterivEXT(Resource.name, eGL_BUFFER_SIZE, (GLint *)&liveLength);
gl.glNamedBufferSubData(Resource.name, 0, (GLsizeiptr)RDCMIN(length, liveLength), Contents);
}
}
else
{
GLuint ppb = 0, pub = 0;
PixelPackState pack;
PixelUnpackState unpack;
// save and restore pixel pack/unpack state. We only need one or the other but for clarity we
// push and pop both always.
if(ser.IsWriting() || !IsStructuredExporting(m_State))
{
gl.glGetIntegerv(eGL_PIXEL_PACK_BUFFER_BINDING, (GLint *)&ppb);
gl.glGetIntegerv(eGL_PIXEL_UNPACK_BUFFER_BINDING, (GLint *)&pub);
gl.glBindBuffer(eGL_PIXEL_PACK_BUFFER, 0);
gl.glBindBuffer(eGL_PIXEL_UNPACK_BUFFER, 0);
pack.Fetch(&gl, false);
unpack.Fetch(&gl, false);
ResetPixelPackState(gl, false, 1);
ResetPixelUnpackState(gl, false, 1);
}
TextureData &details = m_Textures[GetResourceManager()->GetID(Resource)];
GLuint tex = Resource.name;
// serialise the metadata for convenience
SERIALISE_ELEMENT_LOCAL(internalFormat, details.internalFormat).Hidden();
SERIALISE_ELEMENT_LOCAL(width, details.width).Hidden();
SERIALISE_ELEMENT_LOCAL(height, details.height).Hidden();
SERIALISE_ELEMENT_LOCAL(depth, details.depth).Hidden();
RDCASSERT(internalFormat == details.internalFormat, internalFormat, details.internalFormat);
RDCASSERT(width == details.width, width, details.width);
RDCASSERT(height == details.height, height, details.height);
RDCASSERT(depth == details.depth, depth, details.depth);
GLenum fmt = GetBaseFormat(internalFormat);
GLenum type = GetDataType(internalFormat);
GLint dim = details.dimension;
uint32_t size = (uint32_t)GetByteSize(width, height, depth, fmt, type);
int mips = 0;
if(IsReplayingAndReading())
mips = GetNumMips(gl, textype, tex, width, height, depth);
byte *scratchBuf = NULL;
// on read and write, we allocate a single buffer big enough for all mips and re-use it
// to avoid repeated new/free.
scratchBuf = AllocAlignedBuffer(size);
GLuint prevtex = 0;
if(!IsStructuredExporting(m_State))
{
gl.glGetIntegerv(TextureBinding(details.curType), (GLint *)&prevtex);
gl.glBindTexture(textype, tex);
}
for(int i = 0; i < mips; i++)
{
int w = RDCMAX(details.width >> i, 1);
int h = RDCMAX(details.height >> i, 1);
int d = RDCMAX(details.depth >> i, 1);
if(textype == eGL_TEXTURE_CUBE_MAP_ARRAY || textype == eGL_TEXTURE_1D_ARRAY ||
textype == eGL_TEXTURE_2D_ARRAY)
d = details.depth;
size = (uint32_t)GetByteSize(w, h, d, fmt, type);
GLenum targets[] = {
eGL_TEXTURE_CUBE_MAP_POSITIVE_X, eGL_TEXTURE_CUBE_MAP_NEGATIVE_X,
eGL_TEXTURE_CUBE_MAP_POSITIVE_Y, eGL_TEXTURE_CUBE_MAP_NEGATIVE_Y,
eGL_TEXTURE_CUBE_MAP_POSITIVE_Z, eGL_TEXTURE_CUBE_MAP_NEGATIVE_Z,
};
int count = ARRAY_COUNT(targets);
if(textype != eGL_TEXTURE_CUBE_MAP)
{
targets[0] = textype;
count = 1;
}
for(int trg = 0; trg < count; trg++)
{
if(ser.IsWriting())
{
// we avoid glGetTextureImageEXT as it seems buggy for cubemap faces
gl.glGetTexImage(targets[trg], i, fmt, type, scratchBuf);
}
// serialise without allocating memory as we already have our scratch buf sized.
ser.Serialise("SubresourceContents", scratchBuf, size, SerialiserFlags::NoFlags);
if(IsReplayingAndReading() && !ser.IsErrored())
{
if(dim == 1)
gl.glTextureSubImage1DEXT(tex, targets[trg], i, 0, w, fmt, type, scratchBuf);
else if(dim == 2)
gl.glTextureSubImage2DEXT(tex, targets[trg], i, 0, 0, w, h, fmt, type, scratchBuf);
else if(dim == 3)
gl.glTextureSubImage3DEXT(tex, targets[trg], i, 0, 0, 0, w, h, d, fmt, type, scratchBuf);
}
}
}
FreeAlignedBuffer(scratchBuf);
// restore pixel (un)packing state
if(ser.IsWriting() || !IsStructuredExporting(m_State))
{
gl.glBindBuffer(eGL_PIXEL_PACK_BUFFER, ppb);
gl.glBindBuffer(eGL_PIXEL_UNPACK_BUFFER, pub);
pack.Apply(&gl, false);
unpack.Apply(&gl, false);
}
if(!IsStructuredExporting(m_State))
gl.glBindTexture(textype, prevtex);
SERIALISE_CHECK_READ_ERRORS();
}
return true;
}
