зеркало из https://github.com/mozilla/gecko-dev.git
Bug 612846 - Part 4: Make ThebesLayerD3D10 support component alpha. r=bas a=blocking-betan
This commit is contained in:
Matt Woodrow
Родитель
22db1e75f9
Коммит
f2d8203ffd
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@ -43,6 +43,9 @@
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#include "gfxD2DSurface.h"
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#endif
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#include "gfxTeeSurface.h"
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#include "gfxUtils.h"
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namespace mozilla {
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namespace layers {
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@ -117,7 +120,9 @@ ThebesLayerD3D10::RenderLayer()
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SetEffectTransformAndOpacity();
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ID3D10EffectTechnique *technique;
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if (CanUseOpaqueSurface()) {
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if (mTextureOnWhite) {
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technique = effect()->GetTechniqueByName("RenderComponentAlphaLayer");
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} else if (CanUseOpaqueSurface()) {
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technique = effect()->GetTechniqueByName("RenderRGBLayerPremul");
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} else {
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technique = effect()->GetTechniqueByName("RenderRGBALayerPremul");
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@ -130,6 +135,9 @@ ThebesLayerD3D10::RenderLayer()
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if (mSRView) {
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effect()->GetVariableByName("tRGB")->AsShaderResource()->SetResource(mSRView);
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}
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if (mSRViewOnWhite) {
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effect()->GetVariableByName("tRGBWhite")->AsShaderResource()->SetResource(mSRViewOnWhite);
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}
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while ((iterRect = iter.Next())) {
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effect()->GetVariableByName("vLayerQuad")->AsVector()->SetFloatVector(
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@ -164,19 +172,28 @@ ThebesLayerD3D10::Validate()
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return;
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}
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VerifyContentType();
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SurfaceMode mode = GetSurfaceMode();
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if (mode == SURFACE_COMPONENT_ALPHA &&
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(!mParent || !mParent->SupportsComponentAlphaChildren())) {
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mode = SURFACE_SINGLE_CHANNEL_ALPHA;
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}
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VerifyContentType(mode);
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nsIntRect visibleRect = mVisibleRegion.GetBounds();
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if (mTexture) {
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if (!mTextureRegion.IsEqual(mVisibleRegion)) {
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nsRefPtr<ID3D10Texture2D> oldTexture = mTexture;
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mTexture = nsnull;
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nsRefPtr<ID3D10Texture2D> oldTextureOnWhite = mTextureOnWhite;
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mTextureOnWhite = nsnull;
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nsIntRegion retainRegion = mTextureRegion;
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nsIntRect oldBounds = mTextureRegion.GetBounds();
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nsIntRect newBounds = mVisibleRegion.GetBounds();
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CreateNewTexture(gfxIntSize(newBounds.width, newBounds.height));
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CreateNewTextures(gfxIntSize(newBounds.width, newBounds.height), mode);
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// Old visible region will become the region that is covered by both the
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// old and the new visible region.
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@ -199,13 +216,18 @@ ThebesLayerD3D10::Validate()
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CopyRegion(oldTexture, oldBounds.TopLeft(),
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mTexture, newBounds.TopLeft(),
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retainRegion, &mValidRegion);
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if (oldTextureOnWhite) {
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CopyRegion(oldTextureOnWhite, oldBounds.TopLeft(),
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mTextureOnWhite, newBounds.TopLeft(),
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retainRegion, &mValidRegion);
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}
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}
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}
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}
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mTextureRegion = mVisibleRegion;
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if (!mTexture) {
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CreateNewTexture(gfxIntSize(visibleRect.width, visibleRect.height));
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if (!mTexture || (mode == SURFACE_COMPONENT_ALPHA && !mTextureOnWhite)) {
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CreateNewTextures(gfxIntSize(visibleRect.width, visibleRect.height), mode);
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mValidRegion.SetEmpty();
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}
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@ -225,7 +247,7 @@ ThebesLayerD3D10::Validate()
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nsIntRegion region;
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region.Sub(mVisibleRegion, mValidRegion);
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DrawRegion(region);
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DrawRegion(region, mode);
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mValidRegion = mVisibleRegion;
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}
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@ -244,13 +266,13 @@ ThebesLayerD3D10::GetLayer()
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}
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void
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ThebesLayerD3D10::VerifyContentType()
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ThebesLayerD3D10::VerifyContentType(SurfaceMode aMode)
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{
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if (mD2DSurface) {
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gfxASurface::gfxContentType type = CanUseOpaqueSurface() ?
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gfxASurface::gfxContentType type = aMode != SURFACE_SINGLE_CHANNEL_ALPHA ?
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gfxASurface::CONTENT_COLOR : gfxASurface::CONTENT_COLOR_ALPHA;
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if (type != mD2DSurface->GetContentType()) {
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if (type != mD2DSurface->GetContentType()) {
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mD2DSurface = new gfxD2DSurface(mTexture, type);
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if (!mD2DSurface || mD2DSurface->CairoStatus()) {
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@ -258,13 +280,33 @@ ThebesLayerD3D10::VerifyContentType()
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mD2DSurface = nsnull;
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return;
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}
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mValidRegion.SetEmpty();
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}
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if (aMode != SURFACE_COMPONENT_ALPHA && mTextureOnWhite) {
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// If we've transitioned away from component alpha, we can delete those resources.
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mD2DSurfaceOnWhite = nsnull;
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mSRViewOnWhite = nsnull;
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mTextureOnWhite = nsnull;
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mValidRegion.SetEmpty();
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}
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}
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}
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static void
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FillSurface(gfxASurface* aSurface, const nsIntRegion& aRegion,
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const nsIntPoint& aOffset, const gfxRGBA& aColor)
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{
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nsRefPtr<gfxContext> ctx = new gfxContext(aSurface);
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ctx->Translate(-gfxPoint(aOffset.x, aOffset.y));
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gfxUtils::PathFromRegion(ctx, aRegion);
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ctx->SetColor(aColor);
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ctx->Fill();
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}
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void
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ThebesLayerD3D10::DrawRegion(const nsIntRegion &aRegion)
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ThebesLayerD3D10::DrawRegion(const nsIntRegion &aRegion, SurfaceMode aMode)
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{
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nsIntRect visibleRect = mVisibleRegion.GetBounds();
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@ -272,7 +314,22 @@ ThebesLayerD3D10::DrawRegion(const nsIntRegion &aRegion)
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return;
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}
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nsRefPtr<gfxContext> context = new gfxContext(mD2DSurface);
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nsRefPtr<gfxASurface> destinationSurface;
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if (aMode == SURFACE_COMPONENT_ALPHA) {
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FillSurface(mD2DSurface, aRegion, visibleRect.TopLeft(), gfxRGBA(0.0, 0.0, 0.0, 1.0));
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FillSurface(mD2DSurfaceOnWhite, aRegion, visibleRect.TopLeft(), gfxRGBA(1.0, 1.0, 1.0, 1.0));
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gfxASurface* surfaces[2] = { mD2DSurface.get(), mD2DSurfaceOnWhite.get() };
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destinationSurface = new gfxTeeSurface(surfaces, NS_ARRAY_LENGTH(surfaces));
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// Using this surface as a source will likely go horribly wrong, since
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// only the onBlack surface will really be used, so alpha information will
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// be incorrect.
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destinationSurface->SetAllowUseAsSource(PR_FALSE);
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} else {
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destinationSurface = mD2DSurface;
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}
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nsRefPtr<gfxContext> context = new gfxContext(destinationSurface);
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nsIntRegionRectIterator iter(aRegion);
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context->Translate(gfxPoint(-visibleRect.x, -visibleRect.y));
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@ -283,7 +340,7 @@ ThebesLayerD3D10::DrawRegion(const nsIntRegion &aRegion)
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}
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context->Clip();
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if (mD2DSurface->GetContentType() != gfxASurface::CONTENT_COLOR) {
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if (aMode == SURFACE_SINGLE_CHANNEL_ALPHA) {
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context->SetOperator(gfxContext::OPERATOR_CLEAR);
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context->Paint();
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context->SetOperator(gfxContext::OPERATOR_OVER);
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@ -296,7 +353,7 @@ ThebesLayerD3D10::DrawRegion(const nsIntRegion &aRegion)
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}
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void
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ThebesLayerD3D10::CreateNewTexture(const gfxIntSize &aSize)
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ThebesLayerD3D10::CreateNewTextures(const gfxIntSize &aSize, SurfaceMode aMode)
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{
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if (aSize.width == 0 || aSize.height == 0) {
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// Nothing to do.
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@ -306,27 +363,54 @@ ThebesLayerD3D10::CreateNewTexture(const gfxIntSize &aSize)
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CD3D10_TEXTURE2D_DESC desc(DXGI_FORMAT_B8G8R8A8_UNORM, aSize.width, aSize.height, 1, 1);
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desc.BindFlags = D3D10_BIND_RENDER_TARGET | D3D10_BIND_SHADER_RESOURCE;
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desc.MiscFlags = D3D10_RESOURCE_MISC_GDI_COMPATIBLE;
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HRESULT hr;
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HRESULT hr = device()->CreateTexture2D(&desc, NULL, getter_AddRefs(mTexture));
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if (!mTexture) {
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hr = device()->CreateTexture2D(&desc, NULL, getter_AddRefs(mTexture));
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if (FAILED(hr)) {
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NS_WARNING("Failed to create new texture for ThebesLayerD3D10!");
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return;
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}
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hr = device()->CreateShaderResourceView(mTexture, NULL, getter_AddRefs(mSRView));
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if (FAILED(hr)) {
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NS_WARNING("Failed to create shader resource view for ThebesLayerD3D10.");
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}
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mD2DSurface = new gfxD2DSurface(mTexture, aMode != SURFACE_SINGLE_CHANNEL_ALPHA ?
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gfxASurface::CONTENT_COLOR : gfxASurface::CONTENT_COLOR_ALPHA);
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if (!mD2DSurface || mD2DSurface->CairoStatus()) {
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NS_WARNING("Failed to create surface for ThebesLayerD3D10.");
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mD2DSurface = nsnull;
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return;
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}
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if (FAILED(hr)) {
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NS_WARNING("Failed to create new texture for ThebesLayerD3D10!");
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return;
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}
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hr = device()->CreateShaderResourceView(mTexture, NULL, getter_AddRefs(mSRView));
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if (aMode == SURFACE_COMPONENT_ALPHA && !mTextureOnWhite) {
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hr = device()->CreateTexture2D(&desc, NULL, getter_AddRefs(mTextureOnWhite));
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if (FAILED(hr)) {
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NS_WARNING("Failed to create shader resource view for ThebesLayerD3D10.");
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}
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if (FAILED(hr)) {
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NS_WARNING("Failed to create new texture for ThebesLayerD3D10!");
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return;
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}
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mD2DSurface = new gfxD2DSurface(mTexture, CanUseOpaqueSurface() ?
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gfxASurface::CONTENT_COLOR : gfxASurface::CONTENT_COLOR_ALPHA);
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hr = device()->CreateShaderResourceView(mTextureOnWhite, NULL, getter_AddRefs(mSRViewOnWhite));
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if (!mD2DSurface || mD2DSurface->CairoStatus()) {
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NS_WARNING("Failed to create surface for ThebesLayerD3D10.");
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mD2DSurface = nsnull;
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return;
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if (FAILED(hr)) {
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NS_WARNING("Failed to create shader resource view for ThebesLayerD3D10.");
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}
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mD2DSurfaceOnWhite = new gfxD2DSurface(mTextureOnWhite, gfxASurface::CONTENT_COLOR);
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if (!mD2DSurfaceOnWhite || mD2DSurfaceOnWhite->CairoStatus()) {
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NS_WARNING("Failed to create surface for ThebesLayerD3D10.");
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mD2DSurfaceOnWhite = nsnull;
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return;
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}
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}
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}
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@ -67,20 +67,29 @@ private:
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/* Shader resource view for our texture */
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nsRefPtr<ID3D10ShaderResourceView> mSRView;
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/* Texture for render-on-whitew when doing component alpha */
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nsRefPtr<ID3D10Texture2D> mTextureOnWhite;
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/* Shader resource view for our render-on-white texture */
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nsRefPtr<ID3D10ShaderResourceView> mSRViewOnWhite;
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/* Visible region used when we drew the contents of the textures */
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nsIntRegion mTextureRegion;
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/* Checks if our D2D surface has the right content type */
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void VerifyContentType();
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void VerifyContentType(SurfaceMode aMode);
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/* This contains the thebes surface */
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nsRefPtr<gfxASurface> mD2DSurface;
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/* This contains the thebes surface for our render-on-white texture */
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nsRefPtr<gfxASurface> mD2DSurfaceOnWhite;
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/* Have a region of our layer drawn */
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void DrawRegion(const nsIntRegion &aRegion);
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void DrawRegion(const nsIntRegion &aRegion, SurfaceMode aMode);
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/* Create a new texture */
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void CreateNewTexture(const gfxIntSize &aSize);
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void CreateNewTextures(const gfxIntSize &aSize, SurfaceMode aMode);
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/* Copy a texture region */
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void CopyRegion(ID3D10Texture2D* aSrc, const nsIntPoint &aSrcOffset,
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