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105 lines
2.5 KiB
C++
105 lines
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifdef GL_PROVIDER_GLX
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#include "X11TextureSourceOGL.h"
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#include "mozilla/layers/CompositorOGL.h"
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#include "gfxXlibSurface.h"
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#include "gfx2DGlue.h"
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using namespace mozilla;
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using namespace mozilla::layers;
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using namespace mozilla::gfx;
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X11TextureSourceOGL::X11TextureSourceOGL(CompositorOGL* aCompositor, gfxXlibSurface* aSurface)
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: mCompositor(aCompositor)
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, mSurface(aSurface)
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, mTexture(0)
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{
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}
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X11TextureSourceOGL::~X11TextureSourceOGL()
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{
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DeallocateDeviceData();
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}
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void
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X11TextureSourceOGL::DeallocateDeviceData()
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{
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if (mTexture) {
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if (gl() && gl()->MakeCurrent()) {
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gl::sGLXLibrary.ReleaseTexImage(mSurface->XDisplay(), mSurface->GetGLXPixmap());
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gl()->fDeleteTextures(1, &mTexture);
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mTexture = 0;
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}
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}
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}
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void
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X11TextureSourceOGL::BindTexture(GLenum aTextureUnit)
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{
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gl()->fActiveTexture(aTextureUnit);
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if (!mTexture) {
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gl()->fGenTextures(1, &mTexture);
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gl()->fBindTexture(LOCAL_GL_TEXTURE_2D, mTexture);
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gl::sGLXLibrary.BindTexImage(mSurface->XDisplay(), mSurface->GetGLXPixmap());
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} else {
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gl()->fBindTexture(LOCAL_GL_TEXTURE_2D, mTexture);
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gl::sGLXLibrary.UpdateTexImage(mSurface->XDisplay(), mSurface->GetGLXPixmap());
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}
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gl()->fActiveTexture(LOCAL_GL_TEXTURE0);
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}
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IntSize
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X11TextureSourceOGL::GetSize() const
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{
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return ToIntSize(mSurface->GetSize());
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}
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SurfaceFormat
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X11TextureSourceOGL::GetFormat() const {
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gfxContentType type = mSurface->GetContentType();
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return X11TextureSourceOGL::ContentTypeToSurfaceFormat(type);
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}
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void
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X11TextureSourceOGL::SetCompositor(Compositor* aCompositor)
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{
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MOZ_ASSERT(!aCompositor || aCompositor->GetBackendType() == LayersBackend::LAYERS_OPENGL);
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if (mCompositor == aCompositor) {
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return;
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}
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DeallocateDeviceData();
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mCompositor = static_cast<CompositorOGL*>(aCompositor);
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}
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gl::GLContext*
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X11TextureSourceOGL::gl() const
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{
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return mCompositor ? mCompositor->gl() : nullptr;
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}
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SurfaceFormat
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X11TextureSourceOGL::ContentTypeToSurfaceFormat(gfxContentType aType)
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{
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// X11 uses a switched format and the OGL compositor
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// doesn't support ALPHA / A8.
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switch (aType) {
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case gfxContentType::COLOR:
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return SurfaceFormat::R8G8B8X8;
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case gfxContentType::COLOR_ALPHA:
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return SurfaceFormat::R8G8B8A8;
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default:
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return SurfaceFormat::UNKNOWN;
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}
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}
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#endif
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