mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-11 08:13:35 +00:00
462 lines
13 KiB
C++
462 lines
13 KiB
C++
/* -*- Mode: c++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 40; -*- */
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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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#include "SharedSurfaceANGLE.h"
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#include <d3d11.h>
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#include "gfxWindowsPlatform.h"
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#include "GLContextEGL.h"
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#include "GLLibraryEGL.h"
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#include "mozilla/layers/LayersSurfaces.h" // for SurfaceDescriptor, etc
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namespace mozilla {
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namespace gl {
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// Returns `EGL_NO_SURFACE` (`0`) on error.
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static EGLSurface
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CreatePBufferSurface(GLLibraryEGL* egl,
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EGLDisplay display,
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EGLConfig config,
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const gfx::IntSize& size)
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{
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auto width = size.width;
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auto height = size.height;
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EGLint attribs[] = {
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LOCAL_EGL_WIDTH, width,
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LOCAL_EGL_HEIGHT, height,
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LOCAL_EGL_NONE
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};
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DebugOnly<EGLint> preCallErr = egl->fGetError();
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MOZ_ASSERT(preCallErr == LOCAL_EGL_SUCCESS);
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EGLSurface surface = egl->fCreatePbufferSurface(display, config, attribs);
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EGLint err = egl->fGetError();
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if (err != LOCAL_EGL_SUCCESS)
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return 0;
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return surface;
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}
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/*static*/ UniquePtr<SharedSurface_ANGLEShareHandle>
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SharedSurface_ANGLEShareHandle::Create(GLContext* gl,
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EGLContext context, EGLConfig config,
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const gfx::IntSize& size, bool hasAlpha)
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{
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GLLibraryEGL* egl = &sEGLLibrary;
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MOZ_ASSERT(egl);
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MOZ_ASSERT(egl->IsExtensionSupported(
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GLLibraryEGL::ANGLE_surface_d3d_texture_2d_share_handle));
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if (!context || !config)
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return nullptr;
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EGLDisplay display = egl->Display();
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EGLSurface pbuffer = CreatePBufferSurface(egl, display, config, size);
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if (!pbuffer)
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return nullptr;
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// Declare everything before 'goto's.
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HANDLE shareHandle = nullptr;
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bool ok = egl->fQuerySurfacePointerANGLE(display,
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pbuffer,
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LOCAL_EGL_D3D_TEXTURE_2D_SHARE_HANDLE_ANGLE,
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&shareHandle);
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if (!ok) {
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egl->fDestroySurface(egl->Display(), pbuffer);
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return nullptr;
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}
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void* opaqueKeyedMutex = nullptr;
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egl->fQuerySurfacePointerANGLE(display,
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pbuffer,
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LOCAL_EGL_DXGI_KEYED_MUTEX_ANGLE,
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&opaqueKeyedMutex);
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RefPtr<IDXGIKeyedMutex> keyedMutex = static_cast<IDXGIKeyedMutex*>(opaqueKeyedMutex);
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GLuint fence = 0;
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if (gl->IsExtensionSupported(GLContext::NV_fence)) {
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gl->MakeCurrent();
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gl->fGenFences(1, &fence);
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}
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typedef SharedSurface_ANGLEShareHandle ptrT;
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UniquePtr<ptrT> ret( new ptrT(gl, egl, size, hasAlpha, context,
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pbuffer, shareHandle, keyedMutex, fence) );
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return Move(ret);
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}
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EGLDisplay
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SharedSurface_ANGLEShareHandle::Display()
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{
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return mEGL->Display();
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}
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SharedSurface_ANGLEShareHandle::SharedSurface_ANGLEShareHandle(GLContext* gl,
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GLLibraryEGL* egl,
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const gfx::IntSize& size,
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bool hasAlpha,
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EGLContext context,
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EGLSurface pbuffer,
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HANDLE shareHandle,
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const RefPtr<IDXGIKeyedMutex>& keyedMutex,
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GLuint fence)
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: SharedSurface(SharedSurfaceType::EGLSurfaceANGLE,
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AttachmentType::Screen,
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gl,
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size,
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hasAlpha,
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true)
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, mEGL(egl)
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, mContext(context)
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, mPBuffer(pbuffer)
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, mShareHandle(shareHandle)
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, mKeyedMutex(keyedMutex)
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, mFence(fence)
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{
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}
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SharedSurface_ANGLEShareHandle::~SharedSurface_ANGLEShareHandle()
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{
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mEGL->fDestroySurface(Display(), mPBuffer);
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if (mFence) {
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mGL->MakeCurrent();
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mGL->fDeleteFences(1, &mFence);
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}
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}
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void
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SharedSurface_ANGLEShareHandle::LockProdImpl()
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{
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GLContextEGL::Cast(mGL)->SetEGLSurfaceOverride(mPBuffer);
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}
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void
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SharedSurface_ANGLEShareHandle::UnlockProdImpl()
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{
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}
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void
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SharedSurface_ANGLEShareHandle::Fence()
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{
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mGL->fFinish();
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}
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bool
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SharedSurface_ANGLEShareHandle::WaitSync()
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{
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return true;
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}
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bool
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SharedSurface_ANGLEShareHandle::PollSync()
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{
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return true;
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}
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void
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SharedSurface_ANGLEShareHandle::ProducerAcquireImpl()
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{
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if (mKeyedMutex) {
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HRESULT hr = mKeyedMutex->AcquireSync(0, 10000);
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if (hr == WAIT_TIMEOUT) {
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MOZ_CRASH();
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}
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}
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}
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void
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SharedSurface_ANGLEShareHandle::ProducerReleaseImpl()
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{
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if (mKeyedMutex) {
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// XXX: ReleaseSync() has an implicit flush of the D3D commands
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// whether we need Flush() or not depends on the ANGLE semantics.
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// For now, we'll just do it
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mGL->fFlush();
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mKeyedMutex->ReleaseSync(0);
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return;
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}
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Fence();
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}
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void
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SharedSurface_ANGLEShareHandle::ProducerReadAcquireImpl()
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{
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ProducerAcquireImpl();
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}
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void
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SharedSurface_ANGLEShareHandle::ProducerReadReleaseImpl()
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{
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if (mKeyedMutex) {
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mKeyedMutex->ReleaseSync(0);
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return;
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}
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}
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void
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SharedSurface_ANGLEShareHandle::ConsumerAcquireImpl()
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{
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if (!mConsumerTexture) {
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RefPtr<ID3D11Texture2D> tex;
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HRESULT hr = gfxWindowsPlatform::GetPlatform()->GetD3D11Device()->OpenSharedResource(mShareHandle,
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__uuidof(ID3D11Texture2D),
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(void**)(ID3D11Texture2D**)byRef(tex));
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if (SUCCEEDED(hr)) {
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mConsumerTexture = tex;
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RefPtr<IDXGIKeyedMutex> mutex;
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hr = tex->QueryInterface((IDXGIKeyedMutex**)byRef(mutex));
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if (SUCCEEDED(hr)) {
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mConsumerKeyedMutex = mutex;
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}
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}
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}
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if (mConsumerKeyedMutex) {
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HRESULT hr = mConsumerKeyedMutex->AcquireSync(0, 10000);
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if (hr == WAIT_TIMEOUT) {
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MOZ_CRASH();
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}
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}
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}
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void
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SharedSurface_ANGLEShareHandle::ConsumerReleaseImpl()
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{
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if (mConsumerKeyedMutex) {
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mConsumerKeyedMutex->ReleaseSync(0);
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}
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}
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void
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SharedSurface_ANGLEShareHandle::Fence_ContentThread_Impl()
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{
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if (mFence) {
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MOZ_ASSERT(mGL->IsExtensionSupported(GLContext::NV_fence));
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mGL->fSetFence(mFence, LOCAL_GL_ALL_COMPLETED_NV);
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mGL->fFlush();
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return;
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}
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Fence();
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}
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bool
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SharedSurface_ANGLEShareHandle::WaitSync_ContentThread_Impl()
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{
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if (mFence) {
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mGL->MakeCurrent();
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mGL->fFinishFence(mFence);
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return true;
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}
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return WaitSync();
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}
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bool
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SharedSurface_ANGLEShareHandle::PollSync_ContentThread_Impl()
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{
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if (mFence) {
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mGL->MakeCurrent();
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return mGL->fTestFence(mFence);
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}
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return PollSync();
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}
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bool
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SharedSurface_ANGLEShareHandle::ToSurfaceDescriptor(layers::SurfaceDescriptor* const out_descriptor)
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{
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gfx::SurfaceFormat format = mHasAlpha ? gfx::SurfaceFormat::B8G8R8A8
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: gfx::SurfaceFormat::B8G8R8X8;
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*out_descriptor = layers::SurfaceDescriptorD3D10((WindowsHandle)mShareHandle, format,
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mSize);
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return true;
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}
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////////////////////////////////////////////////////////////////////////////////
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// Factory
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static void
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FillPBufferAttribs_ByBits(nsTArray<EGLint>& aAttrs,
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int redBits, int greenBits,
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int blueBits, int alphaBits,
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int depthBits, int stencilBits)
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{
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aAttrs.Clear();
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#if defined(A1) || defined(A2)
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#error The temp-macro names we want are already defined.
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#endif
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#define A1(_x) do { aAttrs.AppendElement(_x); } while (0)
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#define A2(_x,_y) do { A1(_x); A1(_y); } while (0)
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A2(LOCAL_EGL_RENDERABLE_TYPE, LOCAL_EGL_OPENGL_ES2_BIT);
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A2(LOCAL_EGL_SURFACE_TYPE, LOCAL_EGL_PBUFFER_BIT);
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A2(LOCAL_EGL_RED_SIZE, redBits);
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A2(LOCAL_EGL_GREEN_SIZE, greenBits);
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A2(LOCAL_EGL_BLUE_SIZE, blueBits);
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A2(LOCAL_EGL_ALPHA_SIZE, alphaBits);
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A2(LOCAL_EGL_DEPTH_SIZE, depthBits);
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A2(LOCAL_EGL_STENCIL_SIZE, stencilBits);
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A1(LOCAL_EGL_NONE);
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#undef A1
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#undef A2
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}
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static void
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FillPBufferAttribs_BySizes(nsTArray<EGLint>& attribs,
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bool bpp16, bool hasAlpha,
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int depthBits, int stencilBits)
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{
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int red = 0;
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int green = 0;
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int blue = 0;
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int alpha = 0;
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if (bpp16) {
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if (hasAlpha) {
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red = green = blue = alpha = 4;
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} else {
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red = 5;
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green = 6;
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blue = 5;
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}
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} else {
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red = green = blue = 8;
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if (hasAlpha)
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alpha = 8;
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}
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FillPBufferAttribs_ByBits(attribs, red, green, blue, alpha, depthBits,
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stencilBits);
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}
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static bool
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DoesAttribBitsMatchCapBool(GLLibraryEGL* egl, EGLConfig config, EGLint attrib,
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bool capBool)
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{
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EGLint bits = 0;
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egl->fGetConfigAttrib(egl->Display(), config, attrib, &bits);
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MOZ_ASSERT(egl->fGetError() == LOCAL_EGL_SUCCESS);
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bool hasBits = !!bits;
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return hasBits == capBool;
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}
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static EGLConfig
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ChooseConfig(GLContext* gl, GLLibraryEGL* egl, const SurfaceCaps& caps)
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{
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MOZ_ASSERT(egl);
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MOZ_ASSERT(caps.color);
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// We might want 24-bit depth, but we're only (fairly) sure to get 16-bit.
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int depthBits = caps.depth ? 16 : 0;
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int stencilBits = caps.stencil ? 8 : 0;
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// Ok, now we have everything.
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nsTArray<EGLint> attribs(32);
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FillPBufferAttribs_BySizes(attribs, caps.bpp16, caps.alpha, depthBits,
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stencilBits);
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// Time to try to get this config:
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EGLConfig configs[64];
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int numConfigs = sizeof(configs)/sizeof(EGLConfig);
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int foundConfigs = 0;
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if (!egl->fChooseConfig(egl->Display(), attribs.Elements(), configs,
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numConfigs, &foundConfigs) ||
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!foundConfigs)
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{
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NS_WARNING("No configs found for the requested formats.");
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return EGL_NO_CONFIG;
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}
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// The requests passed to ChooseConfig are treated as minimums. If you ask
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// for 0 bits of alpha, we might still get 8 bits.
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EGLConfig config = EGL_NO_CONFIG;
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for (int i = 0; i < foundConfigs; i++) {
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EGLConfig cur = configs[i];
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if (!DoesAttribBitsMatchCapBool(egl, cur, LOCAL_EGL_ALPHA_SIZE,
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caps.alpha) ||
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!DoesAttribBitsMatchCapBool(egl, cur, LOCAL_EGL_DEPTH_SIZE,
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caps.depth) ||
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!DoesAttribBitsMatchCapBool(egl, cur, LOCAL_EGL_STENCIL_SIZE,
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caps.stencil))
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{
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continue;
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}
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config = cur;
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break;
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}
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if (config == EGL_NO_CONFIG) {
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NS_WARNING("No acceptable EGLConfig found.");
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return EGL_NO_CONFIG;
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}
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if (gl->DebugMode()) {
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egl->DumpEGLConfig(config);
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}
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return config;
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}
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/*static*/ UniquePtr<SurfaceFactory_ANGLEShareHandle>
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SurfaceFactory_ANGLEShareHandle::Create(GLContext* gl, const SurfaceCaps& caps,
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const RefPtr<layers::ISurfaceAllocator>& allocator,
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const layers::TextureFlags& flags)
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{
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GLLibraryEGL* egl = &sEGLLibrary;
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if (!egl)
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return nullptr;
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auto ext = GLLibraryEGL::ANGLE_surface_d3d_texture_2d_share_handle;
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if (!egl->IsExtensionSupported(ext))
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return nullptr;
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bool success;
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typedef SurfaceFactory_ANGLEShareHandle ptrT;
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UniquePtr<ptrT> ret( new ptrT(gl, caps, allocator, flags, egl, &success) );
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if (!success)
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return nullptr;
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return Move(ret);
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}
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SurfaceFactory_ANGLEShareHandle::SurfaceFactory_ANGLEShareHandle(GLContext* gl,
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const SurfaceCaps& caps,
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const RefPtr<layers::ISurfaceAllocator>& allocator,
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const layers::TextureFlags& flags,
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GLLibraryEGL* egl,
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bool* const out_success)
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: SurfaceFactory(SharedSurfaceType::EGLSurfaceANGLE, gl, caps, allocator, flags)
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, mProdGL(gl)
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, mEGL(egl)
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{
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MOZ_ASSERT(out_success);
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*out_success = false;
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mContext = GLContextEGL::Cast(mProdGL)->GetEGLContext();
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mConfig = ChooseConfig(mProdGL, mEGL, mReadCaps);
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if (mConfig == EGL_NO_CONFIG)
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return;
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MOZ_ASSERT(mConfig && mContext);
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*out_success = true;
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}
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} /* namespace gl */
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} /* namespace mozilla */
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