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168db53bf4
Original commit message from CVS: * gst/smpte/barboxwipes.c: (gst_wipe_boxes_draw), (gst_wipe_triangles_clock_draw), (gst_wipe_triangles_draw): * gst/smpte/gstmask.c: (_gst_mask_register): * gst/smpte/gstmask.h: * gst/smpte/gstsmpte.c: (gst_smpte_update_mask): * gst/smpte/paint.c: (gst_smpte_paint_hbox), (draw_bresenham_line), (gst_smpte_paint_triangle_clock): constify some static structs. Don't update the mask if nothing changed to the params. Make sure we never draw outside of the picture. Fixes #398325.
111 lines
2.4 KiB
C
111 lines
2.4 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstmask.h"
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#include "paint.h"
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extern void _gst_barboxwipes_register (void);
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static GList *masks = NULL;
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void
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_gst_mask_init (void)
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{
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_gst_barboxwipes_register ();
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}
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static gint
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gst_mask_compare (GstMaskDefinition * def1, GstMaskDefinition * def2)
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{
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return (def1->type - def2->type);
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}
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void
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_gst_mask_register (const GstMaskDefinition * definition)
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{
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masks =
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g_list_insert_sorted (masks, (gpointer) definition,
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(GCompareFunc) gst_mask_compare);
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}
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const GList *
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gst_mask_get_definitions (void)
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{
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return masks;
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}
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static GstMaskDefinition *
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gst_mask_find_definition (gint type)
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{
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GList *walk = masks;
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while (walk) {
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GstMaskDefinition *def = (GstMaskDefinition *) walk->data;
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if (def->type == type)
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return def;
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walk = g_list_next (walk);
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}
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return NULL;
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}
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GstMask *
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gst_mask_factory_new (gint type, gint bpp, gint width, gint height)
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{
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GstMaskDefinition *definition;
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GstMask *mask = NULL;
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definition = gst_mask_find_definition (type);
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if (definition) {
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mask = g_new0 (GstMask, 1);
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mask->type = definition->type;
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mask->bpp = bpp;
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mask->width = width;
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mask->height = height;
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mask->destroy_func = definition->destroy_func;
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mask->user_data = definition->user_data;
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mask->data = g_malloc (width * height * sizeof (guint32));
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if (definition->draw_func)
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definition->draw_func (mask);
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}
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return mask;
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}
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void
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_gst_mask_default_destroy (GstMask * mask)
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{
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g_free (mask->data);
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g_free (mask);
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}
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void
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gst_mask_destroy (GstMask * mask)
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{
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if (mask->destroy_func)
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mask->destroy_func (mask);
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}
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