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/*
* GStreamer
* Copyright (C) 2013 Matthew Waters <ystreet00@gmail.com>
*
* 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_GL_UTILS_H__
#define __GST_GL_UTILS_H__
#include <gst/video/video.h>
#include <gst/gl/gstgl_fwd.h>
G_BEGIN_DECLS
/**
* GstGLContextProjection:
*
* %GST_GL_DISPLAY_PROJECTION_ORTHO2D: Orthogonal projection
* %GST_GL_DISPLAY_CONVERSION_MATRIX: Perspective projection
*/
typedef enum
{
GST_GL_DISPLAY_PROJECTION_ORTHO2D,
GST_GL_DISPLAY_PROJECTION_PERSPECTIVE
} GstGLDisplayProjection;
/**
* CDCB:
* @texture: texture to draw
* @width: new width
* @height: new height:
* @data: user data
*
* client draw callback
*/
typedef gboolean (*CDCB) (GLuint texture, GLuint width, GLuint height, gpointer data);
/**
* GLCB:
* @width: the width
* @height: the height
* @texture: texture
* @stuff: user data
*
* callback definition for operating on textures
*/
typedef void (*GLCB) (gint, gint, guint, gpointer stuff);
/**
* GLCB_V2:
* @stuff: user data
*
* callback definition for operating through a Framebuffer object
*/
typedef void (*GLCB_V2) (gpointer stuff);
/* deprecated. replaced by GstGLMemory */
void gst_gl_context_gen_texture (GstGLContext * context, GLuint * pTexture,
GstVideoFormat v_format, GLint width, GLint height);
/* deprecated. replaced by GstGLMemory */
void gst_gl_context_del_texture (GstGLContext * context, GLuint * pTexture);
/* deprecated. replaced by GstGLMemory */
void gst_gl_generate_texture_full (GstGLContext * context, const GstVideoInfo * info,
const guint comp, gint stride[], gsize offset[], gsize size[], GLuint * pTexture);
gboolean gst_gl_context_gen_fbo (GstGLContext * context, gint width, gint height,
GLuint * fbo, GLuint * depthbuffer);
gboolean gst_gl_context_use_fbo_v2 (GstGLContext * context, gint texture_fbo_width,
gint texture_fbo_height, GLuint fbo, GLuint depth_buffer,
GLuint texture_fbo, GLCB_V2 cb, gpointer stuff);
void gst_gl_context_del_fbo (GstGLContext * context, GLuint fbo,
GLuint depth_buffer);
gboolean gst_gl_context_gen_shader (GstGLContext * context,
const gchar * shader_vertex_source,
const gchar * shader_fragment_source, GstGLShader ** shader);
void gst_gl_context_del_shader (GstGLContext * context, GstGLShader * shader);
gboolean gst_gl_context_check_framebuffer_status (GstGLContext * context);
void gst_gl_context_set_error (GstGLContext * context, const char * format, ...);
gchar *gst_gl_context_get_error (void);
gboolean gst_gl_ensure_element_data (gpointer element,
GstGLDisplay **display_ptr, GstGLContext ** other_context_ptr);
gboolean gst_gl_handle_set_context (GstElement * element, GstContext * context,
GstGLDisplay ** display, GstGLContext ** other_context);
gboolean gst_gl_handle_context_query (GstElement * element, GstQuery * query,
GstGLDisplay ** display, GstGLContext ** other_context);
gboolean gst_gl_run_query (GstElement * element,
GstQuery * query, GstPadDirection direction);
gsize gst_gl_get_plane_data_size (GstVideoInfo * info, GstVideoAlignment * align,
guint plane);
GstCaps * gst_gl_caps_replace_all_caps_features (const GstCaps * caps,
const gchar * feature_name);
G_END_DECLS
#endif /* __GST_GL_UTILS_H__ */
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