aboutsummaryrefslogtreecommitdiff
path: root/lib/lua/src/loslib.c
diff options
context:
space:
mode:
authornumzero <numzer0@yandex.ru>2020-11-22 16:44:00 +0300
committerlhofhansl <larsh@apache.org>2020-11-26 12:49:10 -0800
commitd7cf40a0ce996985cff20a156c56437f8b64c772 (patch)
tree34bbae23a667726da29e2d71399a33f0054aa448 /lib/lua/src/loslib.c
parent560627eef8c02f8201e639c75fcd5301d3a33077 (diff)
downloadminetest-d7cf40a0ce996985cff20a156c56437f8b64c772.tar.gz
minetest-d7cf40a0ce996985cff20a156c56437f8b64c772.tar.bz2
minetest-d7cf40a0ce996985cff20a156c56437f8b64c772.zip
Replace TriangleFan as poorly supported
Diffstat (limited to 'lib/lua/src/loslib.c')
0 files changed, 0 insertions, 0 deletions
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-28 22:15:06 +0000
'>122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 
/*
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.
*/

#include "guiscalingfilter.h"
#include "imagefilters.h"
#include "settings.h"
#include "util/numeric.h"
#include <stdio.h>

/* Maintain a static cache to store the images that correspond to textures
 * in a format that's manipulable by code.  Some platforms exhibit issues
 * converting textures back into images repeatedly, and some don't even
 * allow it at all.
 */
std::map<io::path, video::IImage *> g_imgCache;

/* Maintain a static cache of all pre-scaled textures.  These need to be
 * cleared as well when the cached images.
 */
std::map<io::path, video::ITexture *> g_txrCache;

/* 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)
{
	if (!g_settings->getBool("gui_scaling_filter"))
		return;
	video::IImage *copied = driver->createImage(value->getColorFormat(),
			value->getDimension());
	value->copyTo(copied);
	g_imgCache[key] = copied;
}

// Manually clear the cache, e.g. when switching to different worlds.
void guiScalingCacheClear(video::IVideoDriver *driver)
{
	for (std::map<io::path, video::IImage *>::iterator it = g_imgCache.begin();
			it != g_imgCache.end(); ++it) {
		if (it->second != NULL)
			it->second->drop();
	}
	g_imgCache.clear();
	for (std::map<io::path, video::ITexture *>::iterator it = g_txrCache.begin();
			it != g_txrCache.end(); ++it) {
		if (it->second != NULL)
			driver->removeTexture(it->second);
	}
	g_txrCache.clear();
}

/* 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)
{
	if (src == NULL)
		return src;
	if (!g_settings->getBool("gui_scaling_filter"))
		return src;

	// Calculate scaled texture name.
	char rectstr[200];
	snprintf(rectstr, sizeof(rectstr), "%d:%d:%d:%d:%d:%d",
		srcrect.UpperLeftCorner.X,
		srcrect.UpperLeftCorner.Y,
		srcrect.getWidth(),
		srcrect.getHeight(),
		destrect.getWidth(),
		destrect.getHeight());
	io::path origname = src->getName().getPath();
	io::path scalename = origname + "@guiScalingFilter:" + rectstr;

	// Search for existing scaled texture.
	video::ITexture *scaled = g_txrCache[scalename];
	if (scaled)
		return scaled;

	// Try to find the texture converted to an image in the cache.
	// If the image was not found, try to extract it from the texture.
	video::IImage* srcimg = g_imgCache[origname];
	if (srcimg == NULL) {
		if (!g_settings->getBool("gui_scaling_filter_txr2img"))
			return src;
		srcimg = driver->createImageFromData(src->getColorFormat(),
			src->getSize(), src->lock(), false);
		src->unlock();
		g_imgCache[origname] = srcimg;
	}

	// Create a new destination image and scale the source into it.
	imageCleanTransparent(srcimg, 0);
	video::IImage *destimg = driver->createImage(src->getColorFormat(),
			core::dimension2d<u32>((u32)destrect.getWidth(),
			(u32)destrect.getHeight()));
	imageScaleNNAA(srcimg, srcrect, destimg);

#ifdef __ANDROID__