Adding upstream version 110.0.1.upstream/110.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 196 insertions, 0 deletions

diff --git a/gfx/gl/AndroidSurfaceTexture.cpp b/gfx/gl/AndroidSurfaceTexture.cpp
new file mode 100644
index 0000000000..31e49233c0
--- /dev/null
+++ b/gfx/gl/AndroidSurfaceTexture.cpp
@@ -0,0 +1,196 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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 "AndroidSurfaceTexture.h"
+
+#include "GLContextEGL.h"
+#include "GLBlitHelper.h"
+#include "GLImages.h"
+#include "mozilla/gfx/Logging.h"
+#include "mozilla/layers/LayersSurfaces.h"
+
+#ifdef MOZ_WIDGET_ANDROID
+#  include "mozilla/java/GeckoSurfaceTextureNatives.h"
+#  include "AndroidNativeWindow.h"
+#endif  // MOZ_WIDGET_ANDROID
+
+namespace mozilla {
+namespace gl {
+
+class AndroidSharedBlitGL final {
+ public:
+  explicit AndroidSharedBlitGL(const EGLNativeWindowType window) {
+    StaticMutexAutoLock lock(sMutex);
+
+    if (!sContext) {
+      MOZ_ASSERT(sInstanceCount == 0);
+      sContext = CreateContext();
+      if (!sContext) {
+        return;
+      }
+    }
+
+    const auto& egl = *(sContext->mEgl);
+    mTargetSurface = egl.fCreateWindowSurface(sContext->mConfig, window, 0);
+
+    ++sInstanceCount;
+  }
+
+  ~AndroidSharedBlitGL() {
+    StaticMutexAutoLock lock(sMutex);
+
+    if (mTargetSurface != EGL_NO_SURFACE) {
+      const auto& egl = *(sContext->mEgl);
+      egl.fDestroySurface(mTargetSurface);
+    }
+
+    // Destroy shared GL context when no one uses it.
+    if (--sInstanceCount == 0) {
+      sContext = nullptr;
+    }
+  }
+
+#ifdef MOZ_WIDGET_ANDROID
+  void Blit(const java::GeckoSurfaceTexture::Ref& surfaceTexture,
+            const gfx::IntSize& imageSize) {
+    StaticMutexAutoLock lock(sMutex);
+    MOZ_ASSERT(sContext);
+
+    // Setting overide also makes conext and surface current.
+    sContext->SetEGLSurfaceOverride(mTargetSurface);
+    DebugOnly<bool> rv = sContext->BlitHelper()->Blit(surfaceTexture, imageSize,
+                                                      OriginPos::TopLeft);
+    MOZ_ASSERT(rv);
+    sContext->SwapBuffers();
+    // This method is called through binder IPC and could run on any thread in
+    // the pool. Release the context and surface from this thread after use so
+    // they can be bound to another thread later.
+    UnmakeCurrent(sContext);
+  }
+#endif
+
+ private:
+  static already_AddRefed<GLContextEGL> CreateContextImpl(bool aUseGles) {
+    sMutex.AssertCurrentThreadOwns();
+    MOZ_ASSERT(!sContext);
+
+    nsCString ignored;
+    const auto egl = gl::DefaultEglDisplay(&ignored);
+    EGLConfig eglConfig;
+    CreateConfig(*egl, &eglConfig, /* bpp */ 24, /* depth buffer? */ false,
+                 aUseGles);
+    auto gl = GLContextEGL::CreateGLContext(egl, {}, eglConfig, EGL_NO_SURFACE,
+                                            true, &ignored);
+    if (!gl) {
+      NS_WARNING("Fail to create GL context for native blitter.");
+      return nullptr;
+    }
+    gl->mOwningThreadId = Nothing();
+
+    // Yield the current state made in constructor.
+    UnmakeCurrent(gl);
+    return gl.forget();
+  }
+
+  static already_AddRefed<GLContextEGL> CreateContext() {
+    RefPtr<GLContextEGL> gl;
+#if !defined(MOZ_WIDGET_ANDROID)
+    gl = CreateContextImpl(/* aUseGles */ false);
+#endif  // !defined(MOZ_WIDGET_ANDROID)
+
+    if (!gl) {
+      gl = CreateContextImpl(/* aUseGles */ true);
+    }
+    return gl.forget();
+  }
+
+  static bool UnmakeCurrent(GLContextEGL* const gl) {
+    sMutex.AssertCurrentThreadOwns();
+    MOZ_ASSERT(gl);
+
+    if (!gl->IsCurrent()) {
+      return true;
+    }
+    const auto& egl = *(gl->mEgl);
+    return egl.fMakeCurrent(EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
+  }
+
+  static StaticMutex sMutex MOZ_UNANNOTATED;
+  static StaticRefPtr<GLContextEGL> sContext;
+  static size_t sInstanceCount;
+
+  EGLSurface mTargetSurface;
+};
+
+StaticMutex AndroidSharedBlitGL::sMutex;
+StaticRefPtr<GLContextEGL> AndroidSharedBlitGL::sContext;
+size_t AndroidSharedBlitGL::sInstanceCount = 0;
+
+// -
+#ifdef MOZ_WIDGET_ANDROID
+
+void AndroidSurfaceTexture::GetTransformMatrix(
+    java::sdk::SurfaceTexture::Param surfaceTexture,
+    gfx::Matrix4x4* outMatrix) {
+  JNIEnv* const env = jni::GetEnvForThread();
+
+  auto jarray = jni::FloatArray::LocalRef::Adopt(env, env->NewFloatArray(16));
+  surfaceTexture->GetTransformMatrix(jarray);
+
+  jfloat* array = env->GetFloatArrayElements(jarray.Get(), nullptr);
+
+  memcpy(&(outMatrix->_11), array, sizeof(float) * 16);
+
+  env->ReleaseFloatArrayElements(jarray.Get(), array, 0);
+}
+
+class GLBlitterSupport final
+    : public java::GeckoSurfaceTexture::NativeGLBlitHelper::Natives<
+          GLBlitterSupport> {
+ public:
+  using Base =
+      java::GeckoSurfaceTexture::NativeGLBlitHelper::Natives<GLBlitterSupport>;
+  using Base::AttachNative;
+  using Base::DisposeNative;
+  using Base::GetNative;
+
+  static java::GeckoSurfaceTexture::NativeGLBlitHelper::LocalRef NativeCreate(
+      jlong sourceTextureHandle, jni::Object::Param targetSurface, jint width,
+      jint height) {
+    AndroidNativeWindow win(java::GeckoSurface::Ref::From(targetSurface));
+    auto helper = java::GeckoSurfaceTexture::NativeGLBlitHelper::New();
+    const auto& eglWindow = win.NativeWindow();
+    GLBlitterSupport::AttachNative(
+        helper,
+        MakeUnique<GLBlitterSupport>(MakeUnique<AndroidSharedBlitGL>(eglWindow),
+                                     sourceTextureHandle, width, height));
+    return helper;
+  }
+
+  GLBlitterSupport(UniquePtr<AndroidSharedBlitGL>&& gl,
+                   jlong sourceTextureHandle, jint width, jint height)
+      : mGl(std::move(gl)),
+        mSourceTextureHandle(sourceTextureHandle),
+        mSize(width, height) {}
+
+  void Blit() {
+    auto surfaceTexture =
+        java::GeckoSurfaceTexture::Lookup(mSourceTextureHandle);
+    mGl->Blit(surfaceTexture, mSize);
+  }
+
+ private:
+  const UniquePtr<AndroidSharedBlitGL> mGl;
+  const AndroidSurfaceTextureHandle mSourceTextureHandle;
+  const gfx::IntSize mSize;
+};
+
+void AndroidSurfaceTexture::Init() { GLBlitterSupport::Init(); }
+
+#endif  // MOZ_WIDGET_ANDROID
+
+}  // namespace gl
+}  // namespace mozilla