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/*
* 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_
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