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/*
* GStreamer Android Video Platform Wrapper
* Copyright (C) 2012 Collabora Ltd.
* @author: Reynaldo H. Verdejo Pinochet <reynaldo@collabora.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Alternatively, the contents of this file may be used under the
* GNU Lesser General Public License Version 2.1 (the "LGPL"), in
* which case the following provisions apply instead of the ones
* mentioned above:
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#define EGL_EGLEXT_PROTOTYPES
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <GLES2/gl2.h>
#include <gst/gst.h>
#include "video_platform_wrapper.h"
#ifndef __BIONIC__
#include <X11/Xlib.h>
#endif
GST_DEBUG_CATEGORY_STATIC (vidroid_platform_wrapper);
#define GST_CAT_DEFAULT vidroid_platform_wrapper
#ifdef __BIONIC__
static PFNEGLLOCKSURFACEKHRPROC my_eglLockSurfaceKHR;
static EGLint lock_attribs[] = {
EGL_MAP_PRESERVE_PIXELS_KHR, EGL_TRUE,
EGL_LOCK_USAGE_HINT_KHR, EGL_READ_SURFACE_BIT_KHR | EGL_WRITE_SURFACE_BIT_KHR,
EGL_NONE
};
#endif
void
platform_wrapper_init (void)
{
GST_DEBUG_CATEGORY_INIT (vidroid_platform_wrapper,
"ViDroid Platform Wrapper", 0,
"Platform dependent native-window utility routines for ViDroid");
#ifdef __BIONIC__
my_eglLockSurfaceKHR =
(PFNEGLLOCKSURFACEKHRPROC) eglGetProcAddress ("eglLockSurfaceKHR");
if (!my_eglLockSurfaceKHR)
GST_CAT_ERROR (GST_CAT_DEFAULT, "Extension missing: eglLockSurfaceKHR");
#endif
return;
}
#ifndef __BIONIC__
EGLNativeWindowType
platform_create_native_window (gint width, gint height)
{
Display *d;
Window w;
//XEvent e;
int s;
d = XOpenDisplay (NULL);
if (d == NULL) {
GST_CAT_ERROR (GST_CAT_DEFAULT, "Can't open X11 display");
return (EGLNativeWindowType) 0;
}
s = DefaultScreen (d);
w = XCreateSimpleWindow (d, RootWindow (d, s), 10, 10, width, height, 1,
BlackPixel (d, s), WhitePixel (d, s));
XStoreName (d, w, "vidroidsink");
XMapWindow (d, w);
XFlush (d);
return (EGLNativeWindowType) w;
}
gboolean
platform_destroy_native_window (EGLNativeDisplayType display,
EGLNativeWindowType window)
{
/* XXX: Should proly catch BadWindow */
XDestroyWindow (display, window);
return TRUE;
}
/* XXX: Missing implementation */
EGLint *
platform_crate_native_image_buffer (EGLNativeWindowType win, EGLConfig config,
EGLNativeDisplayType display, const EGLint * egl_attribs)
{
return NULL;
}
#else
/* Android does not support the creation of an egl window surface
* from native code. Hence, we just return NULL here for the time
* being. Function is left for reference as implementing it should
* help us suport other EGL platforms.
*/
EGLNativeWindowType
platform_create_native_window (gint width, gint height)
{
/* XXX: There was one example on AOSP that was using something
* along the lines of window = android_createDisplaySurface();
* but wasn't working properly.
*/
GST_CAT_ERROR (GST_CAT_DEFAULT, "Android: Can't create native window");
return (EGLNativeWindowType) 0;
}
gboolean
platform_destroy_native_window (EGLNativeDisplayType display,
EGLNativeWindowType window)
{
GST_CAT_ERROR (GST_CAT_DEFAULT, "Android: Can't destroy native window");
return TRUE;
}
/* XXX: Drafted implementation */
EGLint *
platform_crate_native_image_buffer (EGLNativeWindowType win, EGLConfig config,
EGLNativeDisplayType display, const EGLint * egl_attribs)
{
EGLNativePixmapType pix = NULL;
EGLSurface pix_surface;
EGLint *buffer = NULL;
/* XXX: Need to figure out how to create an egl_native_pixmap_t to
* feed to eglCreatePixmapSurface. Another option: create an
* android_native_buffer_t to pass straight to eglCreateImageKHR.
*/
pix_surface = eglCreatePixmapSurface (display, config, pix, egl_attribs);
if (pix_surface == EGL_NO_SURFACE) {
GST_CAT_ERROR (GST_CAT_DEFAULT, "Unable to create pixmap surface");
goto EGL_ERROR;
}
if (my_eglLockSurfaceKHR (display, pix_surface, lock_attribs) == EGL_FALSE) {
GST_CAT_ERROR (GST_CAT_DEFAULT, "Unable to lock surface");
goto EGL_ERROR;
}
if (eglQuerySurface (display, pix_surface, EGL_BITMAP_POINTER_KHR, buffer)
== EGL_FALSE) {
GST_CAT_ERROR (GST_CAT_DEFAULT,
"Unable to query surface for bitmap pointer");
goto EGL_ERROR;
}
return buffer;
EGL_ERROR:
GST_CAT_ERROR (GST_CAT_DEFAULT, "EGL call returned error %x", eglGetError ());
/* XXX: Free native pixmap here */
ERROR:
GST_CAT_ERROR (GST_CAT_DEFAULT, "Can't create native buffer. Bailing out");
return NULL;
}
#endif
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