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98249a57db
volatile is not sufficient to provide atomic guarantees and real atomics should be used instead. GCC 11 has started warning about using volatile with atomic operations. https://gitlab.gnome.org/GNOME/glib/-/merge_requests/1719 Discovered in https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/-/issues/868 Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/merge_requests/1073>
158 lines
4.3 KiB
C
158 lines
4.3 KiB
C
/*
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* GStreamer
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* Copyright (C) 2003 Julien Moutte <julien@moutte.net>
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* Copyright (C) 2005,2006,2007 David A. Schleef <ds@schleef.org>
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* Copyright (C) 2008 Julien Isorce <julien.isorce@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 _GLIMAGESINK_H_
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#define _GLIMAGESINK_H_
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#include <gst/gst.h>
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#include <gst/video/gstvideosink.h>
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#include <gst/video/video.h>
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#include <gst/gl/gl.h>
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#include <gst/gl/gstglfuncs.h>
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G_BEGIN_DECLS
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GST_DEBUG_CATEGORY_EXTERN (gst_debug_glimage_sink);
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#define GST_TYPE_GLIMAGE_SINK \
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(gst_glimage_sink_get_type())
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#define GST_GLIMAGE_SINK(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GLIMAGE_SINK,GstGLImageSink))
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#define GST_GLIMAGE_SINK_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GLIMAGE_SINK,GstGLImageSinkClass))
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#define GST_IS_GLIMAGE_SINK(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GLIMAGE_SINK))
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#define GST_IS_GLIMAGE_SINK_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GLIMAGE_SINK))
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typedef enum
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{
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GST_GL_ROTATE_METHOD_IDENTITY,
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GST_GL_ROTATE_METHOD_90R,
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GST_GL_ROTATE_METHOD_180,
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GST_GL_ROTATE_METHOD_90L,
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GST_GL_ROTATE_METHOD_FLIP_HORIZ,
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GST_GL_ROTATE_METHOD_FLIP_VERT,
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GST_GL_ROTATE_METHOD_FLIP_UL_LR,
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GST_GL_ROTATE_METHOD_FLIP_UR_LL,
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GST_GL_ROTATE_METHOD_AUTO,
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}GstGLRotateMethod;
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typedef struct _GstGLImageSink GstGLImageSink;
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typedef struct _GstGLImageSinkClass GstGLImageSinkClass;
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struct _GstGLImageSink
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{
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GstVideoSink video_sink;
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guintptr window_id;
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guintptr new_window_id;
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gulong mouse_sig_id;
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gulong key_sig_id;
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gulong mouse_scroll_sig_id;
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/* GstVideoOverlay::set_render_rectangle() cache */
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gint x;
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gint y;
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gint width;
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gint height;
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/* Input info before 3d stereo output conversion, if any */
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GstVideoInfo in_info;
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GstCaps *in_caps;
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/* format/caps we actually hand off to the app */
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GstVideoInfo out_info;
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GstCaps *out_caps;
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GstGLTextureTarget texture_target;
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GstGLDisplay *display;
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GstGLContext *context;
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GstGLContext *other_context;
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gboolean handle_events;
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gboolean ignore_alpha;
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GstGLViewConvert *convert_views;
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/* Original input RGBA buffer, ready for display,
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* or possible reconversion through the views filter */
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GstBuffer *input_buffer;
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/* Secondary view buffer - when operating in frame-by-frame mode */
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GstBuffer *input_buffer2;
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guint next_tex;
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GstBuffer *next_buffer;
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GstBuffer *next_buffer2; /* frame-by-frame 2nd view */
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GstBuffer *next_sync;
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GstGLSyncMeta *next_sync_meta;
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gint to_quit;
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gboolean keep_aspect_ratio;
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gint par_n, par_d;
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/* avoid replacing the stored_buffer while drawing */
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GMutex drawing_lock;
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GstBuffer *stored_buffer[2];
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GstBuffer *stored_sync;
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GstGLSyncMeta *stored_sync_meta;
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GLuint redisplay_texture;
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/* protected with drawing_lock */
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gboolean window_resized;
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guint window_width;
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guint window_height;
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GstVideoRectangle display_rect;
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GstGLShader *redisplay_shader;
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GLuint vao;
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GLuint vbo_indices;
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GLuint vertex_buffer;
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GLint attr_position;
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GLint attr_texture;
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GstVideoMultiviewMode mview_output_mode;
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GstVideoMultiviewFlags mview_output_flags;
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gboolean output_mode_changed;
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GstGLStereoDownmix mview_downmix_mode;
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GstGLOverlayCompositor *overlay_compositor;
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/* current video flip method */
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GstGLRotateMethod current_rotate_method;
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GstGLRotateMethod rotate_method;
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const gfloat *transform_matrix;
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};
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struct _GstGLImageSinkClass
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{
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GstVideoSinkClass video_sink_class;
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};
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GType gst_glimage_sink_get_type(void);
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GType gst_gl_image_sink_bin_get_type(void);
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G_END_DECLS
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#endif
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