void DeferredShadingStage::updateGBuffer(
TextureBuffer *buf, UInt32 index, Int32 width, Int32 height)
{
TextureObjChunk *bufTex = buf ->getTexture();
Image *bufImg = bufTex->getImage ();
if((_changeCache & (PixelFormatsFieldMask |
PixelTypesFieldMask )) != 0)
{
bufImg->setPixelFormat(_mfPixelFormats[index]);
bufImg->setDataType (_mfPixelTypes [index]);
}
if(_targetSizeChanged == true)
{
bufImg->setWidth (width );
bufImg->setHeight(height);
}
}
void DisplayFilterStage::resizeStageData(DisplayFilterStageData *pData,
Int32 iPixelWidth,
Int32 iPixelHeight)
{
FrameBufferObject *pFBO = pData->getTarget();
if(pFBO == NULL)
return;
TextureBuffer *pTexBuffer =
dynamic_cast<TextureBuffer *>(pFBO->getColorAttachments(0));
if(pTexBuffer == NULL)
return;
TextureObjChunk *pTex = pTexBuffer->getTexture();
if(pTex == NULL)
return;
Image *pImg = pTex->getImage();
if(pImg == NULL)
return;
pImg->set(Image::OSG_RGB_PF,
iPixelWidth,
iPixelHeight,
1,
1,
1,
0.0,
0,
Image::OSG_UINT8_IMAGEDATA,
false);
pFBO->setSize(iPixelWidth, iPixelHeight);
pData->setWidth (iPixelWidth );
pData->setHeight(iPixelHeight);
commitChanges();
}
static Action::ResultE modifyMaterial(Node * const node)
{
MaterialGroup *mg = dynamic_cast<MaterialGroup *>(node->getCore());
if(mg == NULL)
return Action::Continue;
ChunkMaterial *cmat = dynamic_cast<ChunkMaterial *>(mg->getMaterial());
if(cmat == NULL)
return Action::Continue;
TextureObjChunk *texc =
dynamic_cast<TextureObjChunk *>(
cmat->find(TextureObjChunk::getClassType()));
if(texc == NULL)
return Action::Continue;
MaterialChunk *matc =
dynamic_cast<MaterialChunk *>(
cmat->find(MaterialChunk::getClassType()));
TextureEnvChunkUnrecPtr texe =
dynamic_cast<TextureEnvChunk *>(
cmat->find(TextureEnvChunk::getClassType()));
if(texe == NULL)
{
texe = TextureEnvChunk::create();
cmat->addChunk(texe);
}
if(matc == NULL)
{
// no material chunk so we use the replace mode.
texe->setEnvMode(GL_REPLACE);
return Action::Continue;
}
if(matc != NULL)
{
Image *img = texc->getImage();
texe->setEnvMode(GL_MODULATE);
if(img != NULL && img->getBpp() > 2)
{
// for color textures the texture replaces only the diffuse part.
matc->setDiffuse(Color4f(1.0f, 1.0f, 1.0f, 1.0f));
}
// check for textures with alpha
if(!matc->isTransparent() &&
img != NULL &&
img->getBpp() == 4 )
{
BlendChunkUnrecPtr blendc =
dynamic_cast<BlendChunk *>(
cmat->find(BlendChunk::getClassType()));
if(blendc == NULL)
{
blendc = OSG::BlendChunk::create();
blendc->setSrcFactor (GL_SRC_ALPHA);
blendc->setDestFactor(GL_ONE_MINUS_SRC_ALPHA);
cmat->addChunk(blendc);
}
}
}
return Action::Continue;
}
void TextureBuffer::processPreDeactivate(DrawEnv *pEnv, UInt32 index)
{
if(_sfReadBack.getValue() == true)
{
TextureObjChunk *pTexObj = this->getTexture();
if(pTexObj == NULL)
return;
Image *pTexImg = pTexObj->getImage();
if(pTexImg->getData() == NULL)
{
SINFO << "TextureBuffer::render: (Re)Allocating image "
<< "for read-back."
<< endLog;
pTexImg->set(pTexImg->getPixelFormat(),
pTexImg->getWidth (),
pTexImg->getHeight (),
pTexImg->getDepth (),
pTexImg->getMipMapCount(),
pTexImg->getFrameCount (),
pTexImg->getFrameDelay (),
NULL,
pTexImg->getDataType (),
true,
pTexImg->getSideCount () );
}
UInt32 mipMapLevel = _sfLevel.getValue();
UInt32 frame = 0;
UInt32 side = 0;
GLenum target;
Window *pWindow = pEnv->getWindow();
if(_sfTexTarget.getValue() != GL_NONE)
{
target = _sfTexTarget.getValue();
}
else
{
target = _sfTexture.getValue()->determineTextureTarget(pWindow);
}
switch(target)
{
case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
side = 0;
break;
case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
side = 1;
break;
case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
side = 2;
break;
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
side = 3;
break;
case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
side = 4;
break;
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
side = 5;
break;
}
// select GL_COLORATTACHMENTn and read data into image
glReadBuffer(index);
glReadPixels(0, 0,
pTexImg->getWidth (),
pTexImg->getHeight (),
pTexImg->getPixelFormat(),
pTexImg->getDataType (),
pTexImg->editData (mipMapLevel, frame, side));
glReadBuffer(GL_NONE);
}
}
