void GDIPlus::DrawTexturedRect( Gwen::Texture* pTexture, Gwen::Rect pTargetRect, float u1, float v1, float u2, float v2 )
{
Gdiplus::Bitmap* pImage = (Gdiplus::Bitmap*) pTexture->data;
// Missing image, not loaded properly?
if ( !pImage || pImage->GetType() == Gdiplus::ImageTypeUnknown )
return DrawMissingImage( pTargetRect );
Translate( pTargetRect );
Gdiplus::RectF TargetRect( pTargetRect.x, pTargetRect.y, pTargetRect.w, pTargetRect.h );
// Convert UV to pixel coords
float fW = pImage->GetWidth();
float fH = pImage->GetHeight();
u1 *= fW;
v1 *= fH;
u2 *= fW;
u2 -= u1;
v2 *= fH;
v2 -= v1;
graphics->DrawImage( pImage, TargetRect, u1, v1, u2, v2, Gdiplus::UnitPixel );
}
EXPORT_C void CHuiFxGroupLayer::Draw(CHuiFxEngine& aEngine, CHuiGc& aGc, CHuiFxRenderbuffer& aTarget,
CHuiFxRenderbuffer& aSource, TBool aHasSurface)
{
#ifdef HUIFX_TRACE
RDebug::Print(_L("CHuiFxGroupLayer::Draw - 0x%x "), this);
#endif
// TODO: fast path
CHuiFxRenderbuffer* backBuffer = &aTarget;
CHuiFxRenderbuffer* sourceBuffer = &aSource;
THuiFxEngineType engineType = aEngine.EngineType();
// The root group does not require a back buffer
if (!iIsRoot)
{
backBuffer = aEngine.AcquireRenderbuffer(iBackbufferRect.Size());
if (!backBuffer)
{
return;
}
// Make sure background is enabled if needed.
if (AlwaysReadSurfacePixels())
{
backBuffer->EnableBackground(ETrue);
backBuffer->PrepareForReuse(backBuffer->Size());
}
sourceBuffer = backBuffer;
// Translate the graphics context so that the content appears in the correct place
backBuffer->BindAsRenderTarget();
aGc.Push(EHuiGcMatrixModel);
if(engineType == EHuiFxEngineVg10)
{
aGc.Scale(EHuiGcMatrixModel, 1.0f, -1.0f, 1.0f);
aGc.Translate(EHuiGcMatrixModel, 0.0f, -iBackbufferRect.Size().iHeight, 0.0f);
}
aGc.Translate(EHuiGcMatrixModel, -iBackbufferRect.iTl.iX, -iBackbufferRect.iTl.iY, 0.0f);
backBuffer->UnbindAsRenderTarget();
}
else if (iIsRoot && (&aTarget != aEngine.DefaultRenderbuffer()))
{
// We are rendering to offscreen buffer
// Translate the graphics context so that the content appears in the correct place
backBuffer->BindAsRenderTarget();
aGc.Push(EHuiGcMatrixModel);
if(engineType == EHuiFxEngineVg10)
{
aGc.Scale(EHuiGcMatrixModel, 1.0f, -1.0f, 1.0f);
aGc.Translate(EHuiGcMatrixModel, 0.0f, -iBackbufferRect.Size().iHeight, 0.0f);
}
aGc.Translate(EHuiGcMatrixModel, -iBackbufferRect.iTl.iX, -iBackbufferRect.iTl.iY, 0.0f);
backBuffer->UnbindAsRenderTarget();
}
for (TInt i = 0; i < iLayers.Count(); i++)
{
iLayers[i]->Draw(aEngine, aGc, *backBuffer, *sourceBuffer, aHasSurface);
}
// The root group does not support composition
if (!iIsRoot)
{
TRect compSourceRect(TPoint(0, 0), iBackbufferRect.Size());
TInt alpha = 0xff; // TODO
if(engineType == EHuiFxEngineVg10)
{
backBuffer->BindAsRenderTarget();
aGc.Pop(EHuiGcMatrixModel);
backBuffer->UnbindAsRenderTarget();
}
else
{
aGc.Pop(EHuiGcMatrixModel);
}
// Composite the result
TRect compositionTargetRect(TargetRect());
compositionTargetRect.Move(-aTarget.Position());
aEngine.Composite(aTarget, *backBuffer, compositionTargetRect, compSourceRect, BlendingMode(), alpha);
aEngine.ReleaseRenderbuffer(backBuffer);
}
else if (iIsRoot && (&aTarget != aEngine.DefaultRenderbuffer()))
{
// We did rendering to offscreen buffer
if(engineType == EHuiFxEngineVg10)
{
backBuffer->BindAsRenderTarget();
aGc.Pop(EHuiGcMatrixModel);
backBuffer->UnbindAsRenderTarget();
}
else
{
aGc.Pop(EHuiGcMatrixModel);
}
}
}
