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Clean scaling pre-filter for formspec/HUD.

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Aaron Suen 2015-03-09 09:32:11 -04:00 • committed by kwolekr
parent b4247dff2e
commit 6d61375cc7
20 changed files with 524 additions and 102 deletions
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src/guiscalingfilter.h Normal file
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/*
Copyright (C) 2015 Aaron Suen <warr1024@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef _GUI_SCALING_FILTER_H_
#define _GUI_SCALING_FILTER_H_
#include "irrlichttypes_extrabloated.h"
/* Manually insert an image into the cache, useful to avoid texture-to-image
* conversion whenever we can intercept it.
*/
void guiScalingCache(io::path key, video::IVideoDriver *driver, video::IImage *value);
// Manually clear the cache, e.g. when switching to different worlds.
void guiScalingCacheClear(video::IVideoDriver *driver);
/* Get a cached, high-quality pre-scaled texture for display purposes. If the
* texture is not already cached, attempt to create it. Returns a pre-scaled texture,
* or the original texture if unable to pre-scale it.
*/
video::ITexture *guiScalingResizeCached(video::IVideoDriver *driver, video::ITexture *src,
const core::rect<s32> &srcrect, const core::rect<s32> &destrect);
/* Convenience wrapper for guiScalingResizeCached that accepts parameters that
* are available at GUI imagebutton creation time.
*/
video::ITexture *guiScalingImageButton(video::IVideoDriver *driver, video::ITexture *src,
s32 width, s32 height);
/* Replacement for driver->draw2DImage() that uses the high-quality pre-scaled
* texture, if configured.
*/
void draw2DImageFilterScaled(video::IVideoDriver *driver, video::ITexture *txr,
const core::rect<s32> &destrect, const core::rect<s32> &srcrect,
const core::rect<s32> *cliprect = 0, const video::SColor *const colors = 0,
bool usealpha = false);
#endif