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52 lines
1.6 KiB
52 lines
1.6 KiB
5 years ago
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/*
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SDL_image: An example image loading library for use with SDL
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Copyright (C) 1997-2021 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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/* This is a heavily reduced version of IMG.c including only PNG support */
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#include "SDL_image.h"
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extern int IMG_InitPNG(void);
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extern void IMG_QuitPNG(void);
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static int initialized = 0;
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int IMG_Init(int flags) {
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int result = 0;
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/* Passing 0 returns the currently initialized loaders */
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if (!flags) {
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return initialized;
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}
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if (flags & IMG_INIT_PNG) {
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if ((initialized & IMG_INIT_PNG) || IMG_InitPNG() == 0) {
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result |= IMG_INIT_PNG;
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}
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}
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initialized |= result;
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return result;
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}
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void IMG_Quit() {
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if (initialized & IMG_INIT_PNG) {
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IMG_QuitPNG();
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}
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initialized = 0;
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}
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