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/*
* GStreamer EGL/GLES Sink Adaptation
* Copyright (C) 2013 Collabora Ltd.
* @author: Thiago Santos <thiago.sousa.santos@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.
*/
#ifndef __GST_EGL_ADAPTATION_H__
#define __GST_EGL_ADAPTATION_H__
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <gst/gst.h>
#ifdef HAVE_IOS
#include <OpenGLES/ES2/gl.h>
#else
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#endif
#ifdef USE_EGL_RPI
#include <bcm_host.h>
#endif
#include <gst/video/video.h>
#define GST_EGLGLESSINK_IMAGE_NOFMT 0
#define GST_EGLGLESSINK_IMAGE_RGB888 1
#define GST_EGLGLESSINK_IMAGE_RGB565 2
#define GST_EGLGLESSINK_IMAGE_RGBA8888 3
#define GST_EGLGLESSINK_EGL_MIN_VERSION 1
G_BEGIN_DECLS
typedef struct GstEglAdaptationContext GstEglAdaptationContext;
typedef struct _GstEglGlesRenderContext GstEglGlesRenderContext;
typedef struct _GstEglGlesImageFmt GstEglGlesImageFmt;
typedef struct _GstEaglContext GstEaglContext;
typedef struct _coord5
{
float x;
float y;
float z;
float a; /* texpos x */
float b; /* texpos y */
} coord5;
/*
* GstEglAdaptationContext:
* @have_vbo: Set if the GLES VBO setup has been performed
* @have_texture: Set if the GLES texture setup has been performed
* @have_surface: Set if the EGL surface setup has been performed
* @surface_width: Pixel width of the surface the sink is rendering into
* @surface_height: Pixel height of the surface the sink is rendering into
*
* The #GstEglAdaptationContext data structure.
*/
struct GstEglAdaptationContext
{
GstElement *element;
unsigned int position_buffer, index_buffer;
gboolean have_vbo;
gboolean have_texture;
gboolean have_surface;;
gboolean buffer_preserved;
gint surface_width;
gint surface_height;
gint pixel_aspect_ratio;
gint pixel_aspect_ratio_d;
GLuint fragshader[3]; /* frame, border, frame-platform */
GLuint vertshader[3]; /* frame, border, frame-platform */
GLuint glslprogram[3]; /* frame, border, frame-platform */
GLuint texture[3]; /* RGB/Y, U/UV, V */
gint n_textures;
/* shader vars */
GLuint position_loc[3]; /* frame, border, frame-platform */
GLuint texpos_loc[2]; /* frame, frame-platform */
GLuint tex_loc[2][3]; /* [frame, frame-platform] RGB/Y, U/UV, V */
coord5 position_array[12]; /* 4 x Frame, 4 x Border1, 4 x Border2 */
unsigned short index_array[4];
#if HAVE_IOS
GstEaglContext *eaglctx;
#else
GstEglGlesRenderContext *eglglesctx;
#endif
};
GstEglAdaptationContext * gst_egl_adaptation_context_new (GstElement * element);
void gst_egl_adaptation_context_init (GstEglAdaptationContext * ctx);
void gst_egl_adaptation_context_deinit (GstEglAdaptationContext * ctx);
void gst_egl_adaptation_context_free (GstEglAdaptationContext * ctx);
/* platform window */
gboolean gst_egl_adaptation_create_native_window (GstEglAdaptationContext * ctx, gint width, gint height, gpointer * own_window_data);
void gst_egl_adaptation_destroy_native_window (GstEglAdaptationContext * ctx, gpointer * own_window_data);
/* Initialization */
gboolean gst_egl_adaptation_init_display (GstEglAdaptationContext * ctx);
gint gst_egl_adaptation_context_fill_supported_fbuffer_configs (GstEglAdaptationContext * ctx, GstCaps ** ret_caps);
gboolean gst_egl_adaptation_init_egl_surface (GstEglAdaptationContext * ctx, GstVideoFormat format);
void gst_egl_adaptation_context_init_egl_exts (GstEglAdaptationContext * ctx);
/* cleanup */
void gst_egl_adaptation_context_cleanup (GstEglAdaptationContext * ctx);
void gst_egl_adaptation_context_terminate_display(GstEglAdaptationContext * ctx);
/* configuration */
gboolean gst_egl_adaptation_choose_config (GstEglAdaptationContext * ctx);
gboolean gst_egl_adaptation_context_make_current (GstEglAdaptationContext * ctx, gboolean bind);
gboolean gst_egl_adaptation_context_update_surface_dimensions (GstEglAdaptationContext * ctx);
/* rendering */
void gst_egl_adaptation_context_bind_API (GstEglAdaptationContext * ctx);
gboolean gst_egl_adaptation_context_swap_buffers (GstEglAdaptationContext * ctx);
/* get/set */
void gst_egl_adaptation_context_set_window (GstEglAdaptationContext * ctx, guintptr window);
void gst_egl_adaptation_context_update_used_window (GstEglAdaptationContext * ctx);
guintptr gst_egl_adaptation_context_get_window (GstEglAdaptationContext * ctx);
GLuint gst_egl_adaptation_context_get_texture (GstEglAdaptationContext * ctx, gint i);
gint gst_egl_adaptation_context_get_surface_width (GstEglAdaptationContext * ctx);
gint gst_egl_adaptation_context_get_surface_height (GstEglAdaptationContext * ctx);
/* error handling */
gboolean got_gl_error (const char *wtf);
/* platform specific helpers */
gboolean _gst_egl_choose_config (GstEglAdaptationContext * ctx, gboolean try_only, gint * num_configs);
gboolean gst_egl_adaptation_create_egl_context (GstEglAdaptationContext * ctx);
gboolean gst_egl_adaptation_create_surface (GstEglAdaptationContext * ctx);
void gst_egl_adaptation_query_buffer_preserved (GstEglAdaptationContext * ctx);
void gst_egl_adaptation_query_par (GstEglAdaptationContext * ctx);
void gst_egl_adaptation_destroy_surface (GstEglAdaptationContext * ctx);
void gst_egl_adaptation_destroy_context (GstEglAdaptationContext * ctx);
G_END_DECLS
#endif /* __GST_EGL_ADAPTATION_H__ */
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