void GLMRenderTarget::Resize(int x,int y)
{
int c=m_textures.size();
math::vector3di sz(x,y,1);
for(int i=0;i<c;++i)
{
video::ITexture* tex = GetColorTexture(i);
if(tex && tex->getSize()!=sz)
tex->createTexture(sz,tex->getImageFormat());
}
}
GXBOOL RenderTargetImpl::SaveToMemory(clstd::MemBuffer* pBuffer, GXLPCSTR pImageFormat)
{
GXSIZE sDimension;
GXBOOL bval = TRUE;
GXFormat format = m_pColorTexture->GetFormat();
m_pColorTexture->GetDimension(&sDimension);
Texture* pReadBackTexture = NULL;
GetColorTexture(&pReadBackTexture, GXResUsage::Read);
Texture::MAPPED mapped;
if(pReadBackTexture->Map(&mapped, GXResMap::Read))
{
GXUINT bpp = GetBytesOfGraphicsFormat(format);
GXLPVOID pSourceBits = mapped.pBits;
GXINT nSourcePitch = mapped.Pitch;
clstd::Image temp_image;
FREE_IMAGE_TYPE fit = FIT_BITMAP;
switch(format)
{
case Format_R8G8B8A8:
temp_image.Set(sDimension.cx, sDimension.cy, "RGBA", 8, pSourceBits, nSourcePitch);
break;
case Format_B8G8R8X8:
temp_image.Set(sDimension.cx, sDimension.cy, "BGRX", 8, pSourceBits, nSourcePitch);
break;
case Format_B8G8R8:
temp_image.Set(sDimension.cx, sDimension.cy, "BGRX", 8, pSourceBits, nSourcePitch);
break;
case Format_R8:
temp_image.Set(sDimension.cx, sDimension.cy, "R", 8, pSourceBits, nSourcePitch);
break;
case Format_R8G8:
temp_image.Set(sDimension.cx, sDimension.cy, "RG", 8, pSourceBits, nSourcePitch);
break;
case Format_R32G32B32A32_Float:
fit = FIT_RGBAF;
break;
case Format_R32:
fit = FIT_FLOAT;
break;
}
if(temp_image.GetDataSize() > 0)
{
temp_image.SetFormat("BGRA");
pSourceBits = temp_image.GetLine(0);
nSourcePitch = temp_image.GetPitch();
bpp = temp_image.GetChannels();
}
FIBITMAP* fibmp = (fit == FIT_BITMAP)
? FreeImage_Allocate(sDimension.cx, sDimension.cy, bpp * 8)
: FreeImage_AllocateT(fit, sDimension.cx, sDimension.cy, bpp * 8);
BYTE* pDest = FreeImage_GetBits(fibmp);
GXINT nDestPitch = FreeImage_GetPitch(fibmp);
pDest += nDestPitch * (sDimension.cy - 1);
for(int y = 0; y < sDimension.cy; y++)
{
memcpy(pDest, pSourceBits, clMin(nDestPitch, nSourcePitch));
pDest -= nDestPitch;
pSourceBits = reinterpret_cast<GXLPVOID>(reinterpret_cast<size_t>(pSourceBits) + nSourcePitch);
}
pReadBackTexture->Unmap();
FREE_IMAGE_FORMAT fi_format = FIF_UNKNOWN;
clStringA strFormat = pImageFormat;
strFormat.MakeUpper();
if(strFormat == "PNG") {
fi_format = FIF_PNG;
}
else if(strFormat == "JPEG" || strFormat == "JPG") {
fi_format = FIF_JPEG;
}
else if(strFormat == "TIF" || strFormat == "TIFF") {
fi_format = FIF_TIFF;
}
else if(strFormat == "TGA") {
fi_format = FIF_TARGA;
}
else if(strFormat == "BMP") {
fi_format = FIF_BMP;
}
else if(strFormat == "EXR") {
fi_format = FIF_EXR;
}
if(fi_format != FIF_UNKNOWN)
{
FIMEMORY* fimemory = FreeImage_OpenMemory();
if(FreeImage_SaveToMemory(fi_format, fibmp, fimemory))
{
BYTE *pData;
DWORD size_in_bytes;
if(FreeImage_AcquireMemory(fimemory, &pData, &size_in_bytes))
{
pBuffer->Resize(0, FALSE);
pBuffer->Append(pData, size_in_bytes);
}
else
{
bval = FALSE;
}
}
else
{
bval = FALSE;
}
FreeImage_CloseMemory(fimemory);
}
else
{
bval = FALSE;
}
FreeImage_Unload(fibmp);
}
SAFE_RELEASE(pReadBackTexture);
return bval;
}
void GLFramebuffer::ActivateAndBindColorTexture(GLuint slot){
glActiveTexture(slot);
glBindTexture(GL_TEXTURE_2D, GetColorTexture());
}
