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| | | /* |
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| | | Simple DirectMedia Layer |
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| | | Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org> |
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| | | |
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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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| | | |
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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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| | | |
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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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| | | |
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| | | /** |
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| | | * \file SDL_test_compare.h |
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| | | * |
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| | | * Include file for SDL test framework. |
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| | | * |
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| | | * This code is a part of the SDL2_test library, not the main SDL library. |
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| | | */ |
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| | | |
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| | | /* |
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| | | |
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| | | Defines comparison functions (i.e. for surfaces). |
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| | | |
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| | | */ |
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| | | |
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| | | #ifndef _SDL_test_compare_h |
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| | | #define _SDL_test_compare_h |
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| | | |
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| | | #include "SDL.h" |
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| | | |
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| | | #include "SDL_test_images.h" |
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| | | |
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| | | #include "begin_code.h" |
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| | | /* Set up for C function definitions, even when using C++ */ |
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| | | #ifdef __cplusplus |
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| | | extern "C" { |
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| | | #endif |
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| | | |
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| | | /** |
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| | | * \brief Compares a surface and with reference image data for equality |
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| | | * |
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| | | * \param surface Surface used in comparison |
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| | | * \param referenceSurface Test Surface used in comparison |
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| | | * \param allowable_error Allowable difference (squared) in blending accuracy. |
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| | | * |
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| | | * \returns 0 if comparison succeeded, >0 (=number of pixels where comparison failed) if comparison failed, -1 if any of the surfaces were NULL, -2 if the surface sizes differ. |
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| | | */ |
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| | | int SDLTest_CompareSurfaces(SDL_Surface *surface, SDL_Surface *referenceSurface, int allowable_error); |
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| | | |
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| | | |
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| | | /* Ends C function definitions when using C++ */ |
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| | | #ifdef __cplusplus |
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| | | } |
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| | | #endif |
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| | | #include "close_code.h" |
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| | | |
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| | | #endif /* _SDL_test_compare_h */ |
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| | | |
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| | | /* vi: set ts=4 sw=4 expandtab: */ |
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