The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gfx/layers/opengl/X11TextureSourceOGL.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,104 @@
     1.4 +/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
     1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +#ifdef GL_PROVIDER_GLX
    1.10 +
    1.11 +#include "X11TextureSourceOGL.h"
    1.12 +#include "mozilla/layers/CompositorOGL.h"
    1.13 +#include "gfxXlibSurface.h"
    1.14 +#include "gfx2DGlue.h"
    1.15 +
    1.16 +using namespace mozilla;
    1.17 +using namespace mozilla::layers;
    1.18 +using namespace mozilla::gfx;
    1.19 +
    1.20 +X11TextureSourceOGL::X11TextureSourceOGL(CompositorOGL* aCompositor, gfxXlibSurface* aSurface)
    1.21 +  : mCompositor(aCompositor)
    1.22 +  , mSurface(aSurface)
    1.23 +  , mTexture(0)
    1.24 +{
    1.25 +}
    1.26 +
    1.27 +X11TextureSourceOGL::~X11TextureSourceOGL()
    1.28 +{
    1.29 +  DeallocateDeviceData();
    1.30 +}
    1.31 +
    1.32 +void
    1.33 +X11TextureSourceOGL::DeallocateDeviceData()
    1.34 +{
    1.35 +  if (mTexture) {
    1.36 +    if (gl() && gl()->MakeCurrent()) {
    1.37 +      gl::sGLXLibrary.ReleaseTexImage(mSurface->XDisplay(), mSurface->GetGLXPixmap());
    1.38 +      gl()->fDeleteTextures(1, &mTexture);
    1.39 +      mTexture = 0;
    1.40 +    }
    1.41 +  }
    1.42 +}
    1.43 +
    1.44 +void
    1.45 +X11TextureSourceOGL::BindTexture(GLenum aTextureUnit, gfx::Filter aFilter)
    1.46 +{
    1.47 +  gl()->fActiveTexture(aTextureUnit);
    1.48 +
    1.49 +  if (!mTexture) {
    1.50 +    gl()->fGenTextures(1, &mTexture);
    1.51 +
    1.52 +    gl()->fBindTexture(LOCAL_GL_TEXTURE_2D, mTexture);
    1.53 +
    1.54 +    gl::sGLXLibrary.BindTexImage(mSurface->XDisplay(), mSurface->GetGLXPixmap());
    1.55 +  } else {
    1.56 +    gl()->fBindTexture(LOCAL_GL_TEXTURE_2D, mTexture);
    1.57 +    gl::sGLXLibrary.UpdateTexImage(mSurface->XDisplay(), mSurface->GetGLXPixmap());
    1.58 +  }
    1.59 +
    1.60 +  ApplyFilterToBoundTexture(gl(), aFilter, LOCAL_GL_TEXTURE_2D);
    1.61 +}
    1.62 +
    1.63 +IntSize
    1.64 +X11TextureSourceOGL::GetSize() const
    1.65 +{
    1.66 +  return ToIntSize(mSurface->GetSize());
    1.67 +}
    1.68 +
    1.69 +SurfaceFormat
    1.70 +X11TextureSourceOGL::GetFormat() const {
    1.71 +  gfxContentType type = mSurface->GetContentType();
    1.72 +  return X11TextureSourceOGL::ContentTypeToSurfaceFormat(type);
    1.73 +}
    1.74 +
    1.75 +void
    1.76 +X11TextureSourceOGL::SetCompositor(Compositor* aCompositor)
    1.77 +{
    1.78 +  MOZ_ASSERT(!aCompositor || aCompositor->GetBackendType() == LayersBackend::LAYERS_OPENGL);
    1.79 +  if (mCompositor == aCompositor) {
    1.80 +    return;
    1.81 +  }
    1.82 +  DeallocateDeviceData();
    1.83 +  mCompositor = static_cast<CompositorOGL*>(aCompositor);
    1.84 +}
    1.85 +
    1.86 +gl::GLContext*
    1.87 +X11TextureSourceOGL::gl() const
    1.88 +{
    1.89 +  return mCompositor ? mCompositor->gl() : nullptr;
    1.90 +}
    1.91 +
    1.92 +SurfaceFormat
    1.93 +X11TextureSourceOGL::ContentTypeToSurfaceFormat(gfxContentType aType)
    1.94 +{
    1.95 +  // X11 uses a switched format and the OGL compositor
    1.96 +  // doesn't support ALPHA / A8.
    1.97 +  switch (aType) {
    1.98 +    case gfxContentType::COLOR:
    1.99 +      return SurfaceFormat::R8G8B8X8;
   1.100 +    case gfxContentType::COLOR_ALPHA:
   1.101 +      return SurfaceFormat::R8G8B8A8;
   1.102 +    default:
   1.103 +      return SurfaceFormat::UNKNOWN;
   1.104 +  }
   1.105 +}
   1.106 +
   1.107 +#endif