1 files changed, 74 insertions, 0 deletions
diff --git a/third_party/libwebrtc/modules/desktop_capture/linux/wayland/egl_dmabuf.h b/third_party/libwebrtc/modules/desktop_capture/linux/wayland/egl_dmabuf.h
new file mode 100644
index 0000000000..22a8f5ab52
--- /dev/null
+++ b/third_party/libwebrtc/modules/desktop_capture/linux/wayland/egl_dmabuf.h
@@ -0,0 +1,74 @@
+/*
+ *  Copyright 2021 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef MODULES_DESKTOP_CAPTURE_LINUX_WAYLAND_EGL_DMABUF_H_
+#define MODULES_DESKTOP_CAPTURE_LINUX_WAYLAND_EGL_DMABUF_H_
+
+#include <epoxy/egl.h>
+#include <epoxy/gl.h>
+#include <gbm.h>
+
+#include <memory>
+#include <string>
+#include <vector>
+
+#include "absl/types/optional.h"
+#include "modules/desktop_capture/desktop_geometry.h"
+
+namespace webrtc {
+
+class EglDmaBuf {
+ public:
+  struct EGLStruct {
+    std::vector<std::string> extensions;
+    EGLDisplay display = EGL_NO_DISPLAY;
+    EGLContext context = EGL_NO_CONTEXT;
+  };
+
+  struct PlaneData {
+    int32_t fd;
+    uint32_t stride;
+    uint32_t offset;
+  };
+
+  EglDmaBuf();
+  ~EglDmaBuf();
+
+  // Returns whether the image was successfully imported from
+  // given DmaBuf and its parameters
+  bool ImageFromDmaBuf(const DesktopSize& size,
+                       uint32_t format,
+                       const std::vector<PlaneData>& plane_datas,
+                       uint64_t modifiers,
+                       const DesktopVector& offset,
+                       const DesktopSize& buffer_size,
+                       uint8_t* data);
+  std::vector<uint64_t> QueryDmaBufModifiers(uint32_t format);
+
+  bool IsEglInitialized() const { return egl_initialized_; }
+
+ private:
+  bool GetClientExtensions(EGLDisplay dpy, EGLint name);
+
+  bool egl_initialized_ = false;
+  bool has_image_dma_buf_import_ext_ = false;
+  int32_t drm_fd_ = -1;               // for GBM buffer mmap
+  gbm_device* gbm_device_ = nullptr;  // for passed GBM buffer retrieval
+
+  GLuint fbo_ = 0;
+  GLuint texture_ = 0;
+  EGLStruct egl_;
+
+  absl::optional<std::string> GetRenderNode();
+};
+
+}  // namespace webrtc
+
+#endif  // MODULES_DESKTOP_CAPTURE_LINUX_WAYLAND_EGL_DMABUF_H_