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Diffstat (limited to 'gfx/gl/GLContextProviderEAGL.mm')
| -rw-r--r-- | gfx/gl/GLContextProviderEAGL.mm | 275 |
1 files changed, 0 insertions, 275 deletions
diff --git a/gfx/gl/GLContextProviderEAGL.mm b/gfx/gl/GLContextProviderEAGL.mm deleted file mode 100644 index 11c7cce776..0000000000 --- a/gfx/gl/GLContextProviderEAGL.mm +++ /dev/null @@ -1,275 +0,0 @@ -/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- - * 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 "GLContextProvider.h" -#include "GLContextEAGL.h" -#include "nsDebug.h" -#include "nsIWidget.h" -#include "gfxPrefs.h" -#include "gfxFailure.h" -#include "prenv.h" -#include "mozilla/Preferences.h" -#include "mozilla/widget/CompositorWidget.h" -#include "GeckoProfiler.h" - -#import <UIKit/UIKit.h> - -namespace mozilla { -namespace gl { - -using namespace mozilla::widget; - -GLContextEAGL::GLContextEAGL(CreateContextFlags flags, const SurfaceCaps& caps, - EAGLContext* context, GLContext* sharedContext, - bool isOffscreen, ContextProfile profile) - : GLContext(flags, caps, sharedContext, isOffscreen) - , mContext(context) - , mBackbufferRB(0) - , mBackbufferFB(0) - , mLayer(nil) -{ - SetProfileVersion(ContextProfile::OpenGLES, - [context API] == kEAGLRenderingAPIOpenGLES3 ? 300 : 200); -} - -GLContextEAGL::~GLContextEAGL() -{ - if (MakeCurrent()) { - if (mBackbufferFB) { - fDeleteFramebuffers(1, &mBackbufferFB); - } - if (mBackbufferRB) { - fDeleteRenderbuffers(1, &mBackbufferRB); - } - } - - mLayer = nil; - MarkDestroyed(); - [mContext release]; -} - -bool -GLContextEAGL::Init() -{ - return InitWithPrefix("gl", true); -} - -bool -GLContextEAGL::AttachToWindow(nsIWidget* aWidget) -{ - // This should only be called once - MOZ_ASSERT(!mBackbufferFB && !mBackbufferRB); - - UIView* view = - reinterpret_cast<UIView*>(aWidget->GetNativeData(NS_NATIVE_WIDGET)); - - if (!view) { - MOZ_CRASH("no view!"); - } - - mLayer = [view layer]; - - fGenFramebuffers(1, &mBackbufferFB); - return RecreateRB(); -} - -bool -GLContextEAGL::RecreateRB() -{ - MakeCurrent(); - - CAEAGLLayer* layer = (CAEAGLLayer*)mLayer; - - if (mBackbufferRB) { - // It doesn't seem to be enough to just call renderbufferStorage: below, - // we apparently have to recreate the RB. - fDeleteRenderbuffers(1, &mBackbufferRB); - mBackbufferRB = 0; - } - - fGenRenderbuffers(1, &mBackbufferRB); - fBindRenderbuffer(LOCAL_GL_RENDERBUFFER, mBackbufferRB); - - [mContext renderbufferStorage:LOCAL_GL_RENDERBUFFER - fromDrawable:layer]; - - fBindFramebuffer(LOCAL_GL_FRAMEBUFFER, mBackbufferFB); - fFramebufferRenderbuffer(LOCAL_GL_FRAMEBUFFER, LOCAL_GL_COLOR_ATTACHMENT0, - LOCAL_GL_RENDERBUFFER, mBackbufferRB); - - return LOCAL_GL_FRAMEBUFFER_COMPLETE == fCheckFramebufferStatus(LOCAL_GL_FRAMEBUFFER); -} - -bool -GLContextEAGL::MakeCurrentImpl(bool aForce) -{ - if (!aForce && [EAGLContext currentContext] == mContext) { - return true; - } - - if (IsDestroyed()) { - [EAGLContext setCurrentContext:nil]; - return false; - } - - return [EAGLContext setCurrentContext:mContext]; -} - -bool -GLContextEAGL::IsCurrent() { - return [EAGLContext currentContext] == mContext; -} - -bool -GLContextEAGL::SetupLookupFunction() -{ - return false; -} - -bool -GLContextEAGL::IsDoubleBuffered() const -{ - return true; -} - -bool -GLContextEAGL::SwapBuffers() -{ - PROFILER_LABEL("GLContextEAGL", "SwapBuffers", - js::ProfileEntry::Category::GRAPHICS); - - [mContext presentRenderbuffer:LOCAL_GL_RENDERBUFFER]; - return true; -} - -void -GLContextEAGL::GetWSIInfo(nsCString* const out) const -{ - out->AppendLiteral("EAGL"); -} - -already_AddRefed<GLContext> -GLContextProviderEAGL::CreateWrappingExisting(void*, void*) -{ - return nullptr; -} - -static GLContextEAGL* -GetGlobalContextEAGL() -{ - return static_cast<GLContextEAGL*>(GLContextProviderEAGL::GetGlobalContext()); -} - -static already_AddRefed<GLContext> -CreateEAGLContext(CreateContextFlags flags, bool aOffscreen, GLContextEAGL* sharedContext) -{ - EAGLRenderingAPI apis[] = { kEAGLRenderingAPIOpenGLES3, kEAGLRenderingAPIOpenGLES2 }; - - // Try to create a GLES3 context if we can, otherwise fall back to GLES2 - EAGLContext* context = nullptr; - for (EAGLRenderingAPI api : apis) { - if (sharedContext) { - context = [[EAGLContext alloc] initWithAPI:api - sharegroup:sharedContext->GetEAGLContext().sharegroup]; - } else { - context = [[EAGLContext alloc] initWithAPI:api]; - } - - if (context) { - break; - } - } - - if (!context) { - return nullptr; - } - - SurfaceCaps caps = SurfaceCaps::ForRGBA(); - ContextProfile profile = ContextProfile::OpenGLES; - RefPtr<GLContextEAGL> glContext = new GLContextEAGL(flags, caps, context, - sharedContext, - aOffscreen, - profile); - - if (!glContext->Init()) { - glContext = nullptr; - return nullptr; - } - - return glContext.forget(); -} - -already_AddRefed<GLContext> -GLContextProviderEAGL::CreateForCompositorWidget(CompositorWidget* aCompositorWidget, bool aForceAccelerated) -{ - return CreateForWindow(aCompositorWidget->RealWidget(), aForceAccelerated); -} - -already_AddRefed<GLContext> -GLContextProviderEAGL::CreateForWindow(nsIWidget* aWidget, bool aForceAccelerated) -{ - RefPtr<GLContext> glContext = CreateEAGLContext(CreateContextFlags::NONE, false, - GetGlobalContextEAGL()); - if (!glContext) { - return nullptr; - } - - if (!GLContextEAGL::Cast(glContext)->AttachToWindow(aWidget)) { - return nullptr; - } - - return glContext.forget(); -} - -already_AddRefed<GLContext> -GLContextProviderEAGL::CreateHeadless(CreateContextFlags flags, - nsACString* const out_failureId) -{ - return CreateEAGLContext(flags, true, GetGlobalContextEAGL()); -} - -already_AddRefed<GLContext> -GLContextProviderEAGL::CreateOffscreen(const mozilla::gfx::IntSize& size, - const SurfaceCaps& caps, - CreateContextFlags flags, - nsACString* const out_failureId) -{ - RefPtr<GLContext> glContext = CreateHeadless(flags, out_failureId); - if (!glContext->InitOffscreen(size, caps)) { - return nullptr; - } - - return glContext.forget(); -} - -static RefPtr<GLContext> gGlobalContext; - -GLContext* -GLContextProviderEAGL::GetGlobalContext() -{ - static bool triedToCreateContext = false; - if (!triedToCreateContext) { - triedToCreateContext = true; - - MOZ_RELEASE_ASSERT(!gGlobalContext, "GFX: Global GL context already initialized."); - RefPtr<GLContext> temp = CreateHeadless(CreateContextFlags::NONE); - gGlobalContext = temp; - - if (!gGlobalContext) { - MOZ_CRASH("Failed to create global context"); - } - } - - return gGlobalContext; -} - -void -GLContextProviderEAGL::Shutdown() -{ - gGlobalContext = nullptr; -} - -} /* namespace gl */ -} /* namespace mozilla */ |