void CGraphicsCamera::ZoomToRectangle( CRect r )
{
int w1 = r.Width();
int h1 = r.Height();
int w2 = GetViewportRect().Width();
int h2 = GetViewportRect().Height();
double widthZoomInc = (double)w1/(double)w2;
double heightZoomInc = (double)h1/(double)h2;
double zoomInc = max( widthZoomInc, heightZoomInc );
Zoom( 1-zoomInc, r.CenterPoint() );
}
void CViewport::Render()
{
CGraphicsContext *graphics=mProgram->CheckGraphicsMode();
if (graphics->GetType()==CGraphicsContext::kBlastGraphicsContext)
{
CCanvas *fromCanvas=graphics->mCanvasManager.GetCanvas(mCanvas);
if ((mUpdateAll) || (((CBLCanvas*)fromCanvas)->GetDrawBuffer()->GetUsedBlitRects()))
{
CCanvas *toCanvas=graphics->mCanvasManager.GetCanvas(0);
toCanvas->Copy(fromCanvas,GetViewportRect(),mBounds.left,mBounds.top);
((CBLCanvas*)fromCanvas)->GetDrawBuffer()->ClearBlitList();
mUpdateAll=false;
}
}
else
{
CGraphicsContextGL *glGraphics=(CGraphicsContextGL*)graphics;
CGLCanvas *fromCanvas=(CGLCanvas*)graphics->mCanvasManager.GetCanvas(mCanvas);
float screenWidth=glGraphics->GetWidth()/2.0f;
float screenHeight=glGraphics->GetHeight()/2.0f;
float across=(mBounds.left/screenWidth)-1.0f;
float down=-((mBounds.bottom/screenHeight)-1.0f);
glPixelStorei(GL_UNPACK_ROW_LENGTH,fromCanvas->GetWidth());
glPixelStorei(GL_UNPACK_SKIP_ROWS,fromCanvas->GetHeight()-GetHeight()-GetYOffset());
glPixelStorei(GL_UNPACK_SKIP_PIXELS,GetXOffset());
glRasterPos2f(across,down);
glDrawPixels(GetWidth(),GetHeight(),GL_RGB,GL_UNSIGNED_BYTE,fromCanvas->GetPixels());
glRasterPos2f(0,0);
glPixelStorei(GL_UNPACK_SKIP_PIXELS,0);
glPixelStorei(GL_UNPACK_SKIP_ROWS,0);
glPixelStorei(GL_UNPACK_ROW_LENGTH,0);
RenderSprites();
}
}
