webrtc/api/java/jni/surfacetexturehelper_jni.cc

/*
 * libjingle
 * Copyright 2015 Google Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  1. Redistributions of source code must retain the above copyright notice,
 *     this list of conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright notice,
 *     this list of conditions and the following disclaimer in the documentation
 *     and/or other materials provided with the distribution.
 *  3. The name of the author may not be used to endorse or promote products
 *     derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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#include "webrtc/api/java/jni/surfacetexturehelper_jni.h"

#include "webrtc/api/java/jni/classreferenceholder.h"
#include "webrtc/base/bind.h"
#include "webrtc/base/checks.h"

namespace webrtc_jni {

SurfaceTextureHelper::SurfaceTextureHelper(
    JNIEnv* jni, jobject surface_texture_helper)
  : j_surface_texture_helper_(jni, surface_texture_helper),
    j_return_texture_method_(
        GetMethodID(jni,
                    FindClass(jni, "org/webrtc/SurfaceTextureHelper"),
                    "returnTextureFrame",
                    "()V")) {
  CHECK_EXCEPTION(jni) << "error during initialization of SurfaceTextureHelper";
}

SurfaceTextureHelper::~SurfaceTextureHelper() {
}

void SurfaceTextureHelper::ReturnTextureFrame() const {
  JNIEnv* jni = AttachCurrentThreadIfNeeded();
  jni->CallVoidMethod(*j_surface_texture_helper_, j_return_texture_method_);

  CHECK_EXCEPTION(
      jni) << "error during SurfaceTextureHelper.returnTextureFrame";
}

rtc::scoped_refptr<webrtc::VideoFrameBuffer>
SurfaceTextureHelper::CreateTextureFrame(int width, int height,
    const NativeHandleImpl& native_handle) {
  return new rtc::RefCountedObject<AndroidTextureBuffer>(
      width, height, native_handle, *j_surface_texture_helper_,
      rtc::Bind(&SurfaceTextureHelper::ReturnTextureFrame, this));
}

}  // namespace webrtc_jni