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- /*
- Simple DirectMedia Layer
- Copyright (C) 1997-2019 Sam Lantinga <slouken@libsdl.org>
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event will the authors be held liable for any damages
- arising from the use of this software.
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute it
- freely, subject to the following restrictions:
-
- 1. The origin of this software must not be misrepresented; you must not
- claim that you wrote the original software. If you use this software
- in a product, an acknowledgment in the product documentation would be
- appreciated but is not required.
- 2. Altered source versions must be plainly marked as such, and must not be
- misrepresented as being the original software.
- 3. This notice may not be removed or altered from any source distribution.
- */
-
- /**
- * \file SDL_test_compare.h
- *
- * Include file for SDL test framework.
- *
- * This code is a part of the SDL2_test library, not the main SDL library.
- */
-
- /*
-
- Defines comparison functions (i.e. for surfaces).
-
- */
-
- #ifndef SDL_test_compare_h_
- #define SDL_test_compare_h_
-
- #include "SDL.h"
-
- #include "SDL_test_images.h"
-
- #include "begin_code.h"
- /* Set up for C function definitions, even when using C++ */
- #ifdef __cplusplus
- extern "C" {
- #endif
-
- /**
- * \brief Compares a surface and with reference image data for equality
- *
- * \param surface Surface used in comparison
- * \param referenceSurface Test Surface used in comparison
- * \param allowable_error Allowable difference (=sum of squared difference for each RGB component) in blending accuracy.
- *
- * \returns 0 if comparison succeeded, >0 (=number of pixels for which the comparison failed) if comparison failed, -1 if any of the surfaces were NULL, -2 if the surface sizes differ.
- */
- int SDLTest_CompareSurfaces(SDL_Surface *surface, SDL_Surface *referenceSurface, int allowable_error);
-
-
- /* Ends C function definitions when using C++ */
- #ifdef __cplusplus
- }
- #endif
- #include "close_code.h"
-
- #endif /* SDL_test_compare_h_ */
-
- /* vi: set ts=4 sw=4 expandtab: */
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