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/*
* GStreamer EGL Library
* Copyright (C) 2012 Collabora Ltd.
* @author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
* *
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_EGL_H__
#define __GST_EGL_H__
#include <gst/gst.h>
#include <EGL/egl.h>
#include <EGL/eglext.h>
#define GST_EGL_IMAGE_MEMORY_TYPE "EGLImage"
typedef enum {
GST_EGL_IMAGE_MEMORY_TYPE_INVALID = -1,
/* GL formats */
GST_EGL_IMAGE_MEMORY_TYPE_LUMINANCE = 0x0000,
GST_EGL_IMAGE_MEMORY_TYPE_LUMINANCE_ALPHA,
GST_EGL_IMAGE_MEMORY_TYPE_RGB16,
GST_EGL_IMAGE_MEMORY_TYPE_RGB,
GST_EGL_IMAGE_MEMORY_TYPE_RGBA,
/* YUV formats */
/* GST_EGL_IMAGE_MEMORY_TYPE_YUV420P = 0x1000, */
/* Other */
GST_EGL_IMAGE_MEMORY_TYPE_OTHER = 0xffff
} GstEGLImageType;
typedef enum {
/* GStreamer orientation, top line first in memory, left row first */
GST_EGL_IMAGE_ORIENTATION_X_NORMAL_Y_NORMAL,
/* OpenGL orientation, bottom line first in memory, left row first */
GST_EGL_IMAGE_ORIENTATION_X_NORMAL_Y_FLIP,
/* Just for the sake of completeness, nothing uses this probably */
GST_EGL_IMAGE_ORIENTATION_X_FLIP_Y_NORMAL,
GST_EGL_IMAGE_ORIENTATION_X_FLIP_Y_FLIP
} GstEGLImageOrientation;
typedef struct _GstEGLDisplay GstEGLDisplay;
/* EGLImage GstMemory handling */
gboolean gst_egl_image_memory_is_mappable (void);
gboolean gst_is_egl_image_memory (GstMemory * mem);
EGLImageKHR gst_egl_image_memory_get_image (GstMemory * mem);
GstEGLDisplay * gst_egl_image_memory_get_display (GstMemory * mem);
GstEGLImageType gst_egl_image_memory_get_type (GstMemory * mem);
GstEGLImageOrientation gst_egl_image_memory_get_orientation (GstMemory *mem);
void gst_egl_image_memory_set_orientation (GstMemory *mem, GstEGLImageOrientation orientation);
/* Generic EGLImage allocator that doesn't support mapping, copying or anything */
GstAllocator * gst_egl_image_allocator_obtain (void);
GstMemory * gst_egl_image_allocator_alloc (GstAllocator * allocator, GstEGLDisplay * display, GstEGLImageType type, gint width, gint height, gsize * size);
GstMemory * gst_egl_image_allocator_wrap (GstAllocator * allocator, GstEGLDisplay * display, EGLImageKHR image, GstEGLImageType type, GstMemoryFlags flags, gsize size, gpointer user_data, GDestroyNotify user_data_destroy);
/* EGLDisplay wrapper with refcount, connection is closed after last ref is gone */
#define GST_TYPE_EGL_DISPLAY (gst_egl_display_get_type())
GType gst_egl_display_get_type(void);
GstEGLDisplay * gst_egl_display_new (EGLDisplay display);
GstEGLDisplay * gst_egl_display_ref (GstEGLDisplay * display);
void gst_egl_display_unref (GstEGLDisplay * display);
EGLDisplay gst_egl_display_get (GstEGLDisplay * display);
#endif /* __GST_EGL_H__ */
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