| 1 | /* |
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| 2 | * GStreamer |
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| 3 | * Copyright (C) 2013 Matthew Waters <ystreet00@gmail.com> |
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| 4 | * |
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| 5 | * This library is free software; you can redistribute it and/or |
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| 6 | * modify it under the terms of the GNU Library General Public |
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| 7 | * License as published by the Free Software Foundation; either |
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| 8 | * version 2 of the License, or (at your option) any later version. |
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| 9 | * |
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| 10 | * This library is distributed in the hope that it will be useful, |
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | * Library General Public License for more details. |
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| 14 | * |
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| 15 | * You should have received a copy of the GNU Library General Public |
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| 16 | * License along with this library; if not, write to the |
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| 17 | * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, |
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| 18 | * Boston, MA 02110-1301, USA. |
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| 19 | */ |
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| 20 | |
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| 21 | #ifndef __GST_GL_UTILS_H__ |
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| 22 | #define __GST_GL_UTILS_H__ |
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| 23 | |
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| 24 | #include <gst/video/video.h> |
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| 25 | #include <gst/video/gstvideoaffinetransformationmeta.h> |
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| 26 | |
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| 27 | #include <gst/gl/gstgl_fwd.h> |
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| 28 | |
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| 29 | G_BEGIN_DECLS |
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| 30 | |
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| 31 | GST_GL_API |
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| 32 | gboolean gst_gl_ensure_element_data (gpointer element, |
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| 33 | GstGLDisplay **display_ptr, GstGLContext ** other_context_ptr); |
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| 34 | GST_GL_API |
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| 35 | gboolean gst_gl_handle_set_context (GstElement * element, GstContext * context, |
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| 36 | GstGLDisplay ** display, GstGLContext ** other_context); |
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| 37 | GST_GL_API |
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| 38 | gboolean gst_gl_handle_context_query (GstElement * element, GstQuery * query, |
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| 39 | GstGLDisplay * display, GstGLContext * context, GstGLContext * other_context); |
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| 40 | GST_GL_API |
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| 41 | gboolean gst_gl_query_local_gl_context (GstElement * element, GstPadDirection direction, |
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| 42 | GstGLContext ** context_ptr); |
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| 43 | |
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| 44 | GST_GL_API |
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| 45 | void gst_gl_element_propagate_display_context (GstElement * element, GstGLDisplay * display); |
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| 46 | |
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| 47 | GST_GL_API |
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| 48 | gsize gst_gl_get_plane_data_size (const GstVideoInfo * info, const GstVideoAlignment * align, |
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| 49 | guint plane); |
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| 50 | GST_GL_API |
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| 51 | gsize gst_gl_get_plane_start (const GstVideoInfo * info, const GstVideoAlignment * valign, |
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| 52 | guint plane); |
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| 53 | |
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| 54 | GST_GL_API |
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| 55 | gboolean gst_gl_value_set_texture_target_from_mask (GValue * value, |
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| 56 | GstGLTextureTarget target_mask); |
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| 57 | GST_GL_API |
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| 58 | gboolean gst_gl_value_set_texture_target (GValue * value, GstGLTextureTarget target); |
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| 59 | GST_GL_API |
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| 60 | GstGLTextureTarget gst_gl_value_get_texture_target_mask (const GValue * value); |
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| 61 | |
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| 62 | GST_GL_API |
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| 63 | void gst_gl_get_affine_transformation_meta_as_ndc (GstVideoAffineTransformationMeta * meta, gfloat * matrix); |
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| 64 | GST_GL_API |
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| 65 | void gst_gl_set_affine_transformation_meta_from_ndc (GstVideoAffineTransformationMeta * meta, const gfloat * matrix); |
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| 66 | |
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| 67 | GST_GL_API |
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| 68 | void gst_gl_multiply_matrix4 (const gfloat * a, const gfloat * b, gfloat * result); |
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| 69 | |
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| 70 | |
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| 71 | G_END_DECLS |
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| 72 | |
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| 73 | #endif /* __GST_GL_UTILS_H__ */ |
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| 74 | |
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