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b23f8cc6e1
There are a ridiculous number of features related to scaling and positioning due to requests by a number of people who complained that they hated the way that OBS1 would always resize their sources when the source's base size changed. There were also people who wanted more control for how the resizing was handled, or the ability to completely prevent resizing entirely if desired. So I made it so that you can optionally use a 'bounds' system, which allows you to specify different styles of controlling resizing. If disabled, the source will always automatically resize and only the base scale is applied. If enabled, you have a variety of different ways to limit/control how it can resize within the bounds, or make it so it can't resize at all. You can also control alignment within that bounding box, so you can make it so that a source always aligns to a side or corner of the box. I also added an alignment value which changes how the source is oriented relative to the position of the scene item. For example, setting bottom-right alignment will make it so that the position of the item is the bottom right corner of the source. When the source resizies, it will resize leftward and upward in that case, which solves the problem of how a source resizes relative to a desired position.
63 lines
1.9 KiB
C
63 lines
1.9 KiB
C
/******************************************************************************
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Copyright (C) 2013 by Hugh Bailey <obs.jim@gmail.com>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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******************************************************************************/
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#pragma once
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#include "obs.h"
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#include "obs-internal.h"
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#include "graphics/matrix4.h"
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/* how obs scene! */
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struct obs_scene_item {
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volatile long ref;
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volatile bool removed;
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struct obs_scene *parent;
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struct obs_source *source;
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bool visible;
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bool selected;
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struct vec2 pos;
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struct vec2 scale;
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float rot;
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uint32_t align;
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/* last width/height of the source, this is used to check whether
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* ths transform needs updating */
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uint32_t last_width;
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uint32_t last_height;
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struct matrix4 box_transform;
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struct matrix4 draw_transform;
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enum obs_bounds_type bounds_type;
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uint32_t bounds_align;
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struct vec2 bounds;
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/* would do **prev_next, but not really great for reordering */
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struct obs_scene_item *prev;
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struct obs_scene_item *next;
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};
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struct obs_scene {
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struct obs_source *source;
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pthread_mutex_t mutex;
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struct obs_scene_item *first_item;
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};
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