gecko-dev/gfx/layers/opengl/GLManager.cpp
Jeff Muizelaar 31512f67b3 Bug 1073036. layers: Track program state more carefully to avoid setting unnecessarily. r=nical
This introduces some infrastructure to start tracking the program state more carefully. Currently
it only tracks the program because UseProgram was showing up the most in profiles, but more
state could also be added as needed.

--HG--
extra : rebase_source : 289ab867ef63032f7604a6cbe6d0230fd0a9411a
2014-11-10 14:34:06 -05:00

75 lines
2.2 KiB
C++

/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "GLManager.h"
#include "CompositorOGL.h" // for CompositorOGL
#include "GLContext.h" // for GLContext
#include "mozilla/Assertions.h" // for MOZ_CRASH
#include "mozilla/Attributes.h" // for MOZ_OVERRIDE
#include "mozilla/RefPtr.h" // for RefPtr
#include "mozilla/layers/Compositor.h" // for Compositor
#include "mozilla/layers/LayerManagerComposite.h"
#include "mozilla/layers/LayersTypes.h"
#include "mozilla/mozalloc.h" // for operator new, etc
#include "nsAutoPtr.h" // for nsRefPtr
using namespace mozilla::gl;
namespace mozilla {
namespace layers {
class GLManagerCompositor : public GLManager
{
public:
explicit GLManagerCompositor(CompositorOGL* aCompositor)
: mImpl(aCompositor)
{}
virtual GLContext* gl() const MOZ_OVERRIDE
{
return mImpl->gl();
}
virtual void ActivateProgram(ShaderProgramOGL *aProg) MOZ_OVERRIDE
{
mImpl->ActivateProgram(aProg);
}
virtual ShaderProgramOGL* GetProgram(GLenum aTarget, gfx::SurfaceFormat aFormat) MOZ_OVERRIDE
{
ShaderConfigOGL config = ShaderConfigFromTargetAndFormat(aTarget, aFormat);
return mImpl->GetShaderProgramFor(config);
}
virtual const gfx::Matrix4x4& GetProjMatrix() const MOZ_OVERRIDE
{
return mImpl->GetProjMatrix();
}
virtual void BindAndDrawQuad(ShaderProgramOGL *aProg,
const gfx::Rect& aLayerRect,
const gfx::Rect& aTextureRect) MOZ_OVERRIDE
{
mImpl->BindAndDrawQuad(aProg, aLayerRect, aTextureRect);
}
private:
RefPtr<CompositorOGL> mImpl;
};
/* static */ GLManager*
GLManager::CreateGLManager(LayerManagerComposite* aManager)
{
if (aManager &&
Compositor::GetBackend() == LayersBackend::LAYERS_OPENGL) {
return new GLManagerCompositor(static_cast<CompositorOGL*>(
aManager->GetCompositor()));
}
return nullptr;
}
}
}