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/*
* GStreamer EGL/GLES Sink Adaptation
* Copyright (C) 2012-2013 Collabora Ltd.
* @author: Reynaldo H. Verdejo Pinochet <reynaldo@collabora.com>
* @author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
* @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>
#include <gst/video/gstvideopool.h>
#if defined (USE_EGL_RPI) && defined(__GNUC__)
#ifndef __VCCOREVER__
#define __VCCOREVER__ 0x04000000
#endif
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wredundant-decls"
#pragma GCC optimize ("gnu89-inline")
#endif
#define EGL_EGLEXT_PROTOTYPES
#define GL_GLEXT_PROTOTYPES
#ifdef HAVE_IOS
#include <OpenGLES/ES2/gl.h>
#else
#include <gst/egl/egl.h>
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#endif
#if defined (USE_EGL_RPI) && defined(__GNUC__)
#pragma GCC reset_options
#pragma GCC diagnostic pop
#endif
G_BEGIN_DECLS
typedef struct _GstEglAdaptationContext GstEglAdaptationContext;
typedef struct _GstEglGlesImageFmt GstEglGlesImageFmt;
#ifdef HAVE_IOS
typedef struct _GstEaglContext GstEaglContext;
#else
typedef struct _GstEglGlesRenderContext GstEglGlesRenderContext;
#endif
typedef struct _coord5
{
float x;
float y;
float z;
float a; /* texpos x */
float b; /* texpos y */
} coord5;
typedef struct
{
GLuint texture;
} GstEGLGLESImageData;
/*
* 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
*
* The #GstEglAdaptationContext data structure.
*/
struct _GstEglAdaptationContext
{
GstElement *element;
#ifdef HAVE_IOS
GstEaglContext *eaglctx;
void * window, *used_window;
#else
GstEglGlesRenderContext *eglglesctx;
GstEGLDisplay *display, *set_display;
EGLNativeWindowType window, used_window;
#endif
GLuint fragshader[2]; /* frame, border */
GLuint vertshader[2]; /* frame, border */
GLuint glslprogram[2]; /* frame, border */
GLuint texture[3]; /* RGB/Y, U/UV, V */
/* shader vars */
GLuint position_loc[2]; /* frame, border */
GLuint texpos_loc[1]; /* frame */
GLuint tex_scale_loc[1][3]; /* [frame] RGB/Y, U/UV, V */
GLuint tex_loc[1][3]; /* [frame] RGB/Y, U/UV, V */
coord5 position_array[16]; /* 4 x Frame x-normal,y-normal, 4x Frame x-normal,y-flip, 4 x Border1, 4 x Border2 */
unsigned short index_array[4];
unsigned int position_buffer, index_buffer;
gint n_textures;
gint surface_width;
gint surface_height;
gint pixel_aspect_ratio_n;
gint pixel_aspect_ratio_d;
gboolean have_vbo;
gboolean have_texture;
gboolean have_surface;
gboolean buffer_preserved;
};
GST_DEBUG_CATEGORY_EXTERN (egladaption_debug);
void gst_egl_adaption_init (void);
GstEglAdaptationContext * gst_egl_adaptation_context_new (GstElement * element);
void gst_egl_adaptation_context_free (GstEglAdaptationContext * ctx);
void gst_egl_adaptation_init (GstEglAdaptationContext * ctx);
void gst_egl_adaptation_deinit (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);
gboolean
gst_egl_adaptation_create_egl_context (GstEglAdaptationContext * ctx);
#ifndef HAVE_IOS
EGLContext gst_egl_adaptation_context_get_egl_context (GstEglAdaptationContext * ctx);
#endif
/* 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);
GstCaps *gst_egl_adaptation_fill_supported_fbuffer_configs (GstEglAdaptationContext * ctx);
gboolean gst_egl_adaptation_init_display (GstEglAdaptationContext * ctx);
gboolean gst_egl_adaptation_choose_config (GstEglAdaptationContext * ctx);
gboolean gst_egl_adaptation_init_surface (GstEglAdaptationContext * ctx, GstVideoFormat format);
void gst_egl_adaptation_init_exts (GstEglAdaptationContext * ctx);
gboolean gst_egl_adaptation_update_surface_dimensions (GstEglAdaptationContext * ctx);
gboolean _gst_egl_choose_config (GstEglAdaptationContext * ctx, gboolean try_only, gint * num_configs);
gboolean got_gl_error (const char *wtf);
gboolean got_egl_error (const char *wtf);
void gst_egl_adaptation_set_window (GstEglAdaptationContext * ctx, guintptr window);
gboolean gst_egl_adaptation_context_make_current (GstEglAdaptationContext * ctx, gboolean bind);
void gst_egl_adaptation_cleanup (GstEglAdaptationContext * ctx);
void gst_egl_adaptation_bind_API (GstEglAdaptationContext * ctx);
gboolean gst_egl_adaptation_context_swap_buffers (GstEglAdaptationContext * ctx);
#ifndef HAVE_IOS
/* TODO: The goal is to move this function to gstegl lib (or
* splitted between gstegl lib and gstgl lib) in order to be used in
* webkitVideoSink
* So it has to be independent of GstEglAdaptationContext */
GstBuffer *
gst_egl_image_allocator_alloc_eglimage (GstAllocator * allocator,
GstEGLDisplay * display, EGLContext eglcontext, GstVideoFormat format,
gint width, gint height);
#endif
G_END_DECLS
#endif /* __GST_EGL_ADAPTATION_H__ */
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