gfx/layers/basic/X11TextureSourceBasic.cpp

   1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
   2  * This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #include "X11TextureSourceBasic.h"
   7 #include "gfxXlibSurface.h"
   8 #include "gfx2DGlue.h"
   9
  10 namespace mozilla {
  11 namespace layers {
  12
  13 using namespace mozilla::gfx;
  14
  15 X11TextureSourceBasic::X11TextureSourceBasic(BasicCompositor* aCompositor, gfxXlibSurface* aSurface)
  16   : mCompositor(aCompositor),
  17     mSurface(aSurface)
  18 {
  19 }
  20
  21 IntSize
  22 X11TextureSourceBasic::GetSize() const
  23 {
  24   return ToIntSize(mSurface->GetSize());
  25 }
  26
  27 SurfaceFormat
  28 X11TextureSourceBasic::GetFormat() const
  29 {
  30   gfxContentType type = mSurface->GetContentType();
  31   return X11TextureSourceBasic::ContentTypeToSurfaceFormat(type);
  32 }
  33
  34 SourceSurface*
  35 X11TextureSourceBasic::GetSurface(DrawTarget* aTarget)
  36 {
  37   if (!mSourceSurface) {
  38     NativeSurface surf;
  39     surf.mFormat = GetFormat();
  40     surf.mType = NativeSurfaceType::CAIRO_SURFACE;
  41     surf.mSurface = mSurface->CairoSurface();
  42     surf.mSize = GetSize();
  43     mSourceSurface = aTarget->CreateSourceSurfaceFromNativeSurface(surf);
  44   }
  45   return mSourceSurface;
  46 }
  47
  48 void
  49 X11TextureSourceBasic::SetCompositor(Compositor* aCompositor)
  50 {
  51   MOZ_ASSERT(aCompositor->GetBackendType() == LayersBackend::LAYERS_BASIC);
  52   BasicCompositor* compositor = static_cast<BasicCompositor*>(aCompositor);
  53   mCompositor = compositor;
  54 }
  55
  56 SurfaceFormat
  57 X11TextureSourceBasic::ContentTypeToSurfaceFormat(gfxContentType aType)
  58 {
  59   switch (aType) {
  60     case gfxContentType::COLOR:
  61       return SurfaceFormat::B8G8R8X8;
  62     case gfxContentType::ALPHA:
  63       return SurfaceFormat::A8;
  64     case gfxContentType::COLOR_ALPHA:
  65       return SurfaceFormat::B8G8R8A8;
  66     default:
  67       return SurfaceFormat::UNKNOWN;
  68   }
  69 }
  70
  71 }
  72 }