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Diffstat (limited to 'gfx/gl/SharedSurfaceAndroidHardwareBuffer.cpp')
| -rw-r--r-- | gfx/gl/SharedSurfaceAndroidHardwareBuffer.cpp | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/gfx/gl/SharedSurfaceAndroidHardwareBuffer.cpp b/gfx/gl/SharedSurfaceAndroidHardwareBuffer.cpp new file mode 100644 index 0000000000..00f925ce75 --- /dev/null +++ b/gfx/gl/SharedSurfaceAndroidHardwareBuffer.cpp @@ -0,0 +1,168 @@ +/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 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 "SharedSurfaceAndroidHardwareBuffer.h" + +#include "GLBlitHelper.h" +#include "GLContextEGL.h" +#include "GLContextProvider.h" +#include "GLLibraryEGL.h" +#include "GLReadTexImageHelper.h" +#include "MozFramebuffer.h" +#include "mozilla/layers/LayersSurfaces.h" // for SurfaceDescriptor, etc +#include "mozilla/layers/AndroidHardwareBuffer.h" +#include "ScopedGLHelpers.h" +#include "SharedSurface.h" + +namespace mozilla { +namespace gl { + +/*static*/ +UniquePtr<SharedSurface_AndroidHardwareBuffer> +SharedSurface_AndroidHardwareBuffer::Create(const SharedSurfaceDesc& desc) { + const auto& gle = GLContextEGL::Cast(desc.gl); + const auto& egl = gle->mEgl; + + RefPtr<layers::AndroidHardwareBuffer> buffer = + layers::AndroidHardwareBuffer::Create(desc.size, + gfx::SurfaceFormat::R8G8B8A8); + if (!buffer) { + return nullptr; + } + + const EGLint attrs[] = { + LOCAL_EGL_IMAGE_PRESERVED, + LOCAL_EGL_TRUE, + LOCAL_EGL_NONE, + LOCAL_EGL_NONE, + }; + + EGLClientBuffer clientBuffer = + egl->mLib->fGetNativeClientBufferANDROID(buffer->GetNativeBuffer()); + const auto image = egl->fCreateImage( + EGL_NO_CONTEXT, LOCAL_EGL_NATIVE_BUFFER_ANDROID, clientBuffer, attrs); + if (!image) { + return nullptr; + } + + auto tex = MakeUnique<Texture>(*desc.gl); + { + ScopedBindTexture texture(gle, tex->name, LOCAL_GL_TEXTURE_2D); + gle->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_MIN_FILTER, + LOCAL_GL_LINEAR); + gle->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_MAG_FILTER, + LOCAL_GL_LINEAR); + gle->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_WRAP_S, + LOCAL_GL_CLAMP_TO_EDGE); + gle->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_WRAP_T, + LOCAL_GL_CLAMP_TO_EDGE); + gle->fEGLImageTargetTexture2D(LOCAL_GL_TEXTURE_2D, image); + egl->fDestroyImage(image); + } + + const GLenum target = LOCAL_GL_TEXTURE_2D; + auto fb = MozFramebuffer::CreateForBacking(desc.gl, desc.size, 0, false, + target, tex->name); + if (!fb) { + return nullptr; + } + + return AsUnique(new SharedSurface_AndroidHardwareBuffer( + desc, std::move(fb), std::move(tex), buffer)); +} + +SharedSurface_AndroidHardwareBuffer::SharedSurface_AndroidHardwareBuffer( + const SharedSurfaceDesc& desc, UniquePtr<MozFramebuffer> fb, + UniquePtr<Texture> tex, RefPtr<layers::AndroidHardwareBuffer> buffer) + : SharedSurface(desc, std::move(fb)), + mTex(std::move(tex)), + mAndroidHardwareBuffer(buffer) {} + +SharedSurface_AndroidHardwareBuffer::~SharedSurface_AndroidHardwareBuffer() { + const auto& gl = mDesc.gl; + if (!gl || !gl->MakeCurrent()) { + return; + } + const auto& gle = GLContextEGL::Cast(gl); + const auto& egl = gle->mEgl; + + if (mSync) { + egl->fDestroySync(mSync); + mSync = 0; + } +} + +void SharedSurface_AndroidHardwareBuffer::ProducerReleaseImpl() { + const auto& gl = mDesc.gl; + if (!gl || !gl->MakeCurrent()) { + return; + } + const auto& gle = GLContextEGL::Cast(gl); + const auto& egl = gle->mEgl; + + if (mSync) { + MOZ_ALWAYS_TRUE(egl->fDestroySync(mSync)); + mSync = 0; + } + + mSync = egl->fCreateSync(LOCAL_EGL_SYNC_NATIVE_FENCE_ANDROID, nullptr); + MOZ_ASSERT(mSync); + int rawFd = egl->fDupNativeFenceFDANDROID(mSync); + if (rawFd >= 0) { + auto fenceFd = ipc::FileDescriptor(UniqueFileHandle(rawFd)); + mAndroidHardwareBuffer->SetAcquireFence(std::move(fenceFd)); + } + + gl->fFlush(); +} + +Maybe<layers::SurfaceDescriptor> +SharedSurface_AndroidHardwareBuffer::ToSurfaceDescriptor() { + return Some(layers::SurfaceDescriptorAndroidHardwareBuffer( + mAndroidHardwareBuffer->mId, mAndroidHardwareBuffer->mSize, + mAndroidHardwareBuffer->mFormat)); +} + +void SharedSurface_AndroidHardwareBuffer::WaitForBufferOwnership() { + ipc::FileDescriptor fenceFd = + mAndroidHardwareBuffer->GetAndResetReleaseFence(); + if (!fenceFd.IsValid()) { + return; + } + + const auto& gle = GLContextEGL::Cast(mDesc.gl); + const auto& egl = gle->mEgl; + + auto rawFD = fenceFd.TakePlatformHandle(); + const EGLint attribs[] = {LOCAL_EGL_SYNC_NATIVE_FENCE_FD_ANDROID, rawFD.get(), + LOCAL_EGL_NONE}; + + EGLSync sync = egl->fCreateSync(LOCAL_EGL_SYNC_NATIVE_FENCE_ANDROID, attribs); + if (!sync) { + gfxCriticalNote << "Failed to create EGLSync from fd"; + return; + } + // Release fd here, since it is owned by EGLSync + Unused << rawFD.release(); + + egl->fClientWaitSync(sync, 0, LOCAL_EGL_FOREVER); + egl->fDestroySync(sync); +} + +/*static*/ +UniquePtr<SurfaceFactory_AndroidHardwareBuffer> +SurfaceFactory_AndroidHardwareBuffer::Create(GLContext& gl) { + const auto partialDesc = PartialSharedSurfaceDesc{ + &gl, + SharedSurfaceType::AndroidHardwareBuffer, + layers::TextureType::AndroidHardwareBuffer, + true, + }; + return AsUnique(new SurfaceFactory_AndroidHardwareBuffer(partialDesc)); +} + +} // namespace gl + +} /* namespace mozilla */ |