Пример #1
0
void
ContainerLayerD3D9::LayerManagerDestroyed()
{
  while (mFirstChild) {
    GetFirstChildD3D9()->LayerManagerDestroyed();
    RemoveChild(mFirstChild);
  }
}
Пример #2
0
void
ContainerLayerD3D9::RenderLayer()
{
  nsRefPtr<IDirect3DSurface9> previousRenderTarget;
  nsRefPtr<IDirect3DTexture9> renderTexture;
  float previousRenderTargetOffset[4];
  RECT containerClipRect;
  float renderTargetOffset[] = { 0, 0, 0, 0 };
  float oldViewMatrix[4][4];

  device()->GetScissorRect(&containerClipRect);

  ReadbackProcessor readback;
  readback.BuildUpdates(this);

  nsIntRect visibleRect = mVisibleRegion.GetBounds();
  PRBool useIntermediate = UseIntermediateSurface();

  mSupportsComponentAlphaChildren = PR_FALSE;
  gfxMatrix contTransform;
  if (useIntermediate) {
    device()->GetRenderTarget(0, getter_AddRefs(previousRenderTarget));
    device()->CreateTexture(visibleRect.width, visibleRect.height, 1,
                            D3DUSAGE_RENDERTARGET, D3DFMT_A8R8G8B8,
                            D3DPOOL_DEFAULT, getter_AddRefs(renderTexture),
                            NULL);
    nsRefPtr<IDirect3DSurface9> renderSurface;
    renderTexture->GetSurfaceLevel(0, getter_AddRefs(renderSurface));
    device()->SetRenderTarget(0, renderSurface);

    if (mVisibleRegion.GetNumRects() == 1 && (GetContentFlags() & CONTENT_OPAQUE)) {
      // don't need a background, we're going to paint all opaque stuff
      mSupportsComponentAlphaChildren = PR_TRUE;
    } else {
      const gfx3DMatrix& transform3D = GetEffectiveTransform();
      gfxMatrix transform;
      // If we have an opaque ancestor layer, then we can be sure that
      // all the pixels we draw into are either opaque already or will be
      // covered by something opaque. Otherwise copying up the background is
      // not safe.
      HRESULT hr = E_FAIL;
      if (HasOpaqueAncestorLayer(this) &&
          transform3D.Is2D(&transform) && !transform.HasNonIntegerTranslation()) {
        // Copy background up from below
        RECT dest = { 0, 0, visibleRect.width, visibleRect.height };
        RECT src = dest;
        ::OffsetRect(&src,
                     visibleRect.x + PRInt32(transform.x0),
                     visibleRect.y + PRInt32(transform.y0));
        hr = device()->
          StretchRect(previousRenderTarget, &src, renderSurface, &dest, D3DTEXF_NONE);
      }
      if (hr == S_OK) {
        mSupportsComponentAlphaChildren = PR_TRUE;
      } else {
        device()->Clear(0, 0, D3DCLEAR_TARGET, D3DCOLOR_RGBA(0, 0, 0, 0), 0, 0);
      }
    }

    device()->GetVertexShaderConstantF(CBvRenderTargetOffset, previousRenderTargetOffset, 1);
    renderTargetOffset[0] = (float)visibleRect.x;
    renderTargetOffset[1] = (float)visibleRect.y;
    device()->SetVertexShaderConstantF(CBvRenderTargetOffset, renderTargetOffset, 1);

    gfx3DMatrix viewMatrix;
    /*
     * Matrix to transform to viewport space ( <-1.0, 1.0> topleft,
     * <1.0, -1.0> bottomright)
     */
    viewMatrix._11 = 2.0f / visibleRect.width;
    viewMatrix._22 = -2.0f / visibleRect.height;
    viewMatrix._41 = -1.0f;
    viewMatrix._42 = 1.0f;

    device()->GetVertexShaderConstantF(CBmProjection, &oldViewMatrix[0][0], 4);
    device()->SetVertexShaderConstantF(CBmProjection, &viewMatrix._11, 4);
  } else {
#ifdef DEBUG
    PRBool is2d =
#endif
    GetEffectiveTransform().Is2D(&contTransform);
    NS_ASSERTION(is2d, "Transform must be 2D");
    mSupportsComponentAlphaChildren = (GetContentFlags() & CONTENT_OPAQUE) ||
        (mParent && mParent->SupportsComponentAlphaChildren());
  }

  /*
   * Render this container's contents.
   */
  for (LayerD3D9* layerToRender = GetFirstChildD3D9();
       layerToRender != nsnull;
       layerToRender = GetNextSiblingD3D9(layerToRender)) {

    const nsIntRect* clipRect = layerToRender->GetLayer()->GetClipRect();
    if ((clipRect && clipRect->IsEmpty()) ||
        layerToRender->GetLayer()->GetEffectiveVisibleRegion().IsEmpty()) {
      continue;
    }

    if (clipRect || useIntermediate) {
      RECT r;
      if (clipRect) {
        r.left = (LONG)(clipRect->x - renderTargetOffset[0]);
        r.top = (LONG)(clipRect->y - renderTargetOffset[1]);
        r.right = (LONG)(clipRect->x - renderTargetOffset[0] + clipRect->width);
        r.bottom = (LONG)(clipRect->y - renderTargetOffset[1] + clipRect->height);
      } else {
        r.left = 0;
        r.top = 0;
        r.right = visibleRect.width;
        r.bottom = visibleRect.height;
      }

      nsRefPtr<IDirect3DSurface9> renderSurface;
      device()->GetRenderTarget(0, getter_AddRefs(renderSurface));

      D3DSURFACE_DESC desc;
      renderSurface->GetDesc(&desc);

      if (!useIntermediate) {
        // Transform clip rect
        if (clipRect) {
          gfxRect cliprect(r.left, r.top, r.right - r.left, r.bottom - r.top);
          gfxRect trScissor = contTransform.TransformBounds(cliprect);
          trScissor.Round();
          nsIntRect trIntScissor;
          if (gfxUtils::GfxRectToIntRect(trScissor, &trIntScissor)) {
            r.left = trIntScissor.x;
            r.top = trIntScissor.y;
            r.right = trIntScissor.XMost();
            r.bottom = trIntScissor.YMost();
          } else {
            r.left = 0;
            r.top = 0;
            r.right = visibleRect.width;
            r.bottom = visibleRect.height;
            clipRect = nsnull;
          }
        }
        // Intersect with current clip rect.
        r.left = NS_MAX<PRInt32>(containerClipRect.left, r.left);
        r.right = NS_MIN<PRInt32>(containerClipRect.right, r.right);
        r.top = NS_MAX<PRInt32>(containerClipRect.top, r.top);
        r.bottom = NS_MIN<PRInt32>(containerClipRect.bottom, r.bottom);
      } else {
        // > 0 is implied during the intersection when useIntermediate == true;
        r.left = NS_MAX<LONG>(0, r.left);
        r.top = NS_MAX<LONG>(0, r.top);
      }
      r.bottom = NS_MIN<LONG>(r.bottom, desc.Height);
      r.right = NS_MIN<LONG>(r.right, desc.Width);

      device()->SetScissorRect(&r);
    }

    if (layerToRender->GetLayer()->GetType() == TYPE_THEBES) {
      static_cast<ThebesLayerD3D9*>(layerToRender)->RenderThebesLayer(&readback);
    } else {
      layerToRender->RenderLayer();
    }

    if (clipRect && !useIntermediate) {
      // In this situation we've set a new scissor rect and we will continue
      // to render directly to our container. We need to restore its scissor.
      // Not setting this when useIntermediate is true is an optimization since
      // we'll get a new one set anyway.
      device()->SetScissorRect(&containerClipRect);
    }
  }

  if (useIntermediate) {
    device()->SetRenderTarget(0, previousRenderTarget);
    device()->SetVertexShaderConstantF(CBvRenderTargetOffset, previousRenderTargetOffset, 1);
    device()->SetVertexShaderConstantF(CBmProjection, &oldViewMatrix[0][0], 4);

    device()->SetVertexShaderConstantF(CBvLayerQuad,
                                       ShaderConstantRect(visibleRect.x,
                                                          visibleRect.y,
                                                          visibleRect.width,
                                                          visibleRect.height),
                                       1);

    SetShaderTransformAndOpacity();

    mD3DManager->SetShaderMode(DeviceManagerD3D9::RGBALAYER);

    device()->SetScissorRect(&containerClipRect);
    device()->SetTexture(0, renderTexture);
    device()->DrawPrimitive(D3DPT_TRIANGLESTRIP, 0, 2);
  }
}