From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 21:33:14 +0200
Subject: Adding upstream version 115.7.0esr.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 gfx/webrender_bindings/RenderCompositorOGLSWGL.h | 104 +++++++++++++++++++++++
 1 file changed, 104 insertions(+)
 create mode 100644 gfx/webrender_bindings/RenderCompositorOGLSWGL.h

(limited to 'gfx/webrender_bindings/RenderCompositorOGLSWGL.h')

diff --git a/gfx/webrender_bindings/RenderCompositorOGLSWGL.h b/gfx/webrender_bindings/RenderCompositorOGLSWGL.h
new file mode 100644
index 0000000000..7752574311
--- /dev/null
+++ b/gfx/webrender_bindings/RenderCompositorOGLSWGL.h
@@ -0,0 +1,104 @@
+/* -*- 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/. */
+
+#ifndef MOZILLA_GFX_RENDERCOMPOSITOR_OGL_SWGL_H
+#define MOZILLA_GFX_RENDERCOMPOSITOR_OGL_SWGL_H
+
+#include "mozilla/layers/Compositor.h"
+#include "mozilla/webrender/RenderCompositorLayersSWGL.h"
+
+namespace mozilla {
+
+namespace layers {
+class TextureImageTextureSourceOGL;
+}
+
+namespace wr {
+
+class RenderCompositorOGLSWGL : public RenderCompositorLayersSWGL {
+ public:
+  static UniquePtr<RenderCompositor> Create(
+      const RefPtr<widget::CompositorWidget>& aWidget, nsACString& aError);
+
+  RenderCompositorOGLSWGL(layers::Compositor* aCompositor,
+                          const RefPtr<widget::CompositorWidget>& aWidget,
+                          void* aContext);
+  virtual ~RenderCompositorOGLSWGL();
+
+  gl::GLContext* GetGLContext();
+
+  bool MakeCurrent() override;
+
+  bool BeginFrame() override;
+  RenderedFrameId EndFrame(const nsTArray<DeviceIntRect>& aDirtyRects) override;
+
+  void GetCompositorCapabilities(CompositorCapabilities* aCaps) override;
+
+  // Returns true for requesting rendering during readback.
+  // RenderCompositorOGLSWGL::MaybeReadback() requests rendering.
+  // This value is not used by WebRender, since native compositor API is used
+  // for sw-wr.
+  bool UsePartialPresent() override { return true; }
+  bool RequestFullRender() override;
+
+  void Pause() override;
+  bool Resume() override;
+  bool IsPaused() override;
+
+  LayoutDeviceIntSize GetBufferSize() override;
+
+  layers::WebRenderCompositor CompositorType() const override {
+    return layers::WebRenderCompositor::OPENGL;
+  }
+
+  bool MaybeReadback(const gfx::IntSize& aReadbackSize,
+                     const wr::ImageFormat& aReadbackFormat,
+                     const Range<uint8_t>& aReadbackBuffer,
+                     bool* aNeedsYFlip) override;
+
+ private:
+  void HandleExternalImage(RenderTextureHost* aExternalImage,
+                           FrameSurface& aFrameSurface) override;
+  UniquePtr<RenderCompositorLayersSWGL::Tile> DoCreateTile(
+      Surface* aSurface) override;
+
+  EGLSurface CreateEGLSurface();
+  void DestroyEGLSurface();
+
+  EGLSurface mEGLSurface = EGL_NO_SURFACE;
+  bool mFullRender = false;
+
+#ifdef MOZ_WIDGET_ANDROID
+  // Whether we are in the process of handling a NEW_SURFACE error. On Android
+  // this is used to allow the widget an opportunity to recover from the first
+  // instance, before raising a WebRenderError on subsequent occurences.
+  bool mHandlingNewSurfaceError = false;
+#endif
+
+  class TileOGL : public RenderCompositorLayersSWGL::Tile {
+   public:
+    TileOGL(RefPtr<layers::TextureImageTextureSourceOGL>&& aTexture,
+            const gfx::IntSize& aSize);
+    virtual ~TileOGL();
+
+    bool Map(wr::DeviceIntRect aDirtyRect, wr::DeviceIntRect aValidRect,
+             void** aData, int32_t* aStride) override;
+    void Unmap(const gfx::IntRect& aDirtyRect) override;
+    layers::DataTextureSource* GetTextureSource() override;
+    bool IsValid() override { return true; }
+
+   private:
+    RefPtr<layers::TextureImageTextureSourceOGL> mTexture;
+    RefPtr<gfx::DataSourceSurface> mSurface;
+    RefPtr<gfx::DataSourceSurface> mSubSurface;
+    GLuint mPBO = 0;
+  };
+};
+
+}  // namespace wr
+}  // namespace mozilla
+
+#endif
-- 
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