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| Rev | Author | Line No. | Line |
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| 1 | pmbaty | 1 | /* |
| 2 | Simple DirectMedia Layer |
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| 3 | Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org> |
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| 4 | |||
| 5 | This software is provided 'as-is', without any express or implied |
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| 6 | warranty. In no event will the authors be held liable for any damages |
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| 7 | arising from the use of this software. |
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| 8 | |||
| 9 | Permission is granted to anyone to use this software for any purpose, |
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| 10 | including commercial applications, and to alter it and redistribute it |
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| 11 | freely, subject to the following restrictions: |
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| 12 | |||
| 13 | 1. The origin of this software must not be misrepresented; you must not |
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| 14 | claim that you wrote the original software. If you use this software |
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| 15 | in a product, an acknowledgment in the product documentation would be |
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| 16 | appreciated but is not required. |
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| 17 | 2. Altered source versions must be plainly marked as such, and must not be |
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| 18 | misrepresented as being the original software. |
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| 19 | 3. This notice may not be removed or altered from any source distribution. |
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| 20 | */ |
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| 21 | |||
| 22 | /** |
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| 23 | * \file SDL_test_compare.h |
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| 24 | * |
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| 25 | * Include file for SDL test framework. |
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| 26 | * |
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| 27 | * This code is a part of the SDL2_test library, not the main SDL library. |
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| 28 | */ |
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| 29 | |||
| 30 | /* |
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| 31 | |||
| 32 | Defines comparison functions (i.e. for surfaces). |
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| 33 | |||
| 34 | */ |
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| 35 | |||
| 36 | #ifndef SDL_test_compare_h_ |
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| 37 | #define SDL_test_compare_h_ |
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| 38 | |||
| 39 | #include "SDL.h" |
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| 40 | |||
| 41 | #include "SDL_test_images.h" |
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| 42 | |||
| 43 | #include "begin_code.h" |
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| 44 | /* Set up for C function definitions, even when using C++ */ |
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| 45 | #ifdef __cplusplus |
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| 46 | extern "C" { |
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| 47 | #endif |
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| 48 | |||
| 49 | /** |
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| 50 | * \brief Compares a surface and with reference image data for equality |
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| 51 | * |
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| 52 | * \param surface Surface used in comparison |
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| 53 | * \param referenceSurface Test Surface used in comparison |
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| 54 | * \param allowable_error Allowable difference (=sum of squared difference for each RGB component) in blending accuracy. |
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| 55 | * |
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| 56 | * \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. |
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| 57 | */ |
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| 58 | int SDLTest_CompareSurfaces(SDL_Surface *surface, SDL_Surface *referenceSurface, int allowable_error); |
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| 59 | |||
| 60 | |||
| 61 | /* Ends C function definitions when using C++ */ |
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| 62 | #ifdef __cplusplus |
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| 63 | } |
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| 64 | #endif |
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| 65 | #include "close_code.h" |
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| 66 | |||
| 67 | #endif /* SDL_test_compare_h_ */ |
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| 68 | |||
| 69 | /* vi: set ts=4 sw=4 expandtab: */ |