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111 lines
3.7 KiB
C
111 lines
3.7 KiB
C
/*
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* GStreamer
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* Copyright (C) 2013 Matthew Waters <ystreet00@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_GL_UTILS_H__
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#define __GST_GL_UTILS_H__
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#include <gst/video/video.h>
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#include <gst/gl/gstgl_fwd.h>
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/**
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* GstGLContextProjection:
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*
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* %GST_GL_DISPLAY_PROJECTION_ORTHO2D: Orthogonal projection
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* %GST_GL_DISPLAY_CONVERSION_MATRIX: Perspective projection
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*/
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typedef enum
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{
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GST_GL_DISPLAY_PROJECTION_ORTHO2D,
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GST_GL_DISPLAY_PROJECTION_PERSPECTIVE
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} GstGLDisplayProjection;
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/**
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* CRCB:
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* @width: new width
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* @height: new height:
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* @data: user data
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*
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* client reshape callback
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*/
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typedef void (*CRCB) (GLuint width, GLuint height, gpointer data);
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/**
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* CDCB:
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* @texture: texture to draw
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* @width: new width
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* @height: new height:
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* @data: user data
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*
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* client draw callback
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*/
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typedef gboolean (*CDCB) (GLuint texture, GLuint width, GLuint height, gpointer data);
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/**
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* GLCB:
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* @width: the width
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* @height: the height
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* @texture: texture
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* @stuff: user data
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*
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* callback definition for operating on textures
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*/
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typedef void (*GLCB) (gint, gint, guint, gpointer stuff);
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/**
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* GLCB_V2:
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* @stuff: user data
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*
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* callback definition for operating through a Framebuffer object
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*/
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typedef void (*GLCB_V2) (gpointer stuff);
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void gst_gl_context_gen_texture (GstGLContext * context, GLuint * pTexture,
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GstVideoFormat v_format, GLint width, GLint height);
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void gst_gl_context_del_texture (GstGLContext * context, GLuint * pTexture);
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gboolean gst_gl_context_gen_fbo (GstGLContext * context, gint width, gint height,
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GLuint * fbo, GLuint * depthbuffer);
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gboolean gst_gl_context_use_fbo (GstGLContext * context, gint texture_fbo_width,
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gint texture_fbo_height, GLuint fbo, GLuint depth_buffer,
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GLuint texture_fbo, GLCB cb, gint input_texture_width,
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gint input_texture_height, GLuint input_texture, gdouble proj_param1,
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gdouble proj_param2, gdouble proj_param3, gdouble proj_param4,
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GstGLDisplayProjection projection, gpointer stuff);
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gboolean gst_gl_context_use_fbo_v2 (GstGLContext * context, gint texture_fbo_width,
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gint texture_fbo_height, GLuint fbo, GLuint depth_buffer,
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GLuint texture_fbo, GLCB_V2 cb, gpointer stuff);
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void gst_gl_context_del_fbo (GstGLContext * context, GLuint fbo,
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GLuint depth_buffer);
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gboolean gst_gl_context_gen_shader (GstGLContext * context,
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const gchar * shader_vertex_source,
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const gchar * shader_fragment_source, GstGLShader ** shader);
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void gst_gl_context_del_shader (GstGLContext * context, GstGLShader * shader);
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gboolean gst_gl_context_check_framebuffer_status (GstGLContext * context);
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void gst_gl_context_set_error (GstGLContext * context, const char * format, ...);
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gchar *gst_gl_context_get_error (void);
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gboolean gst_gl_ensure_display (gpointer element, GstGLDisplay **display_ptr);
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gboolean gst_gl_handle_set_context (GstElement * element, GstContext * context,
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GstGLDisplay ** display);
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gboolean gst_gl_handle_context_query (GstElement * element, GstQuery * query,
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GstGLDisplay ** display);
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#endif /* __GST_GL_UTILS_H__ */
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