diff options
Diffstat (limited to '3rdparty/SDL2/src/test/SDL_test_compare.c')
-rw-r--r-- | 3rdparty/SDL2/src/test/SDL_test_compare.c | 115 |
1 files changed, 0 insertions, 115 deletions
diff --git a/3rdparty/SDL2/src/test/SDL_test_compare.c b/3rdparty/SDL2/src/test/SDL_test_compare.c deleted file mode 100644 index d06ead9f71d..00000000000 --- a/3rdparty/SDL2/src/test/SDL_test_compare.c +++ /dev/null @@ -1,115 +0,0 @@ -/* - Simple DirectMedia Layer - Copyright (C) 1997-2016 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. -*/ - -/* - - Based on automated SDL_Surface tests originally written by Edgar Simo 'bobbens'. - - Rewritten for test lib by Andreas Schiffler. - -*/ - -#include "SDL_config.h" - -#include "SDL_test.h" - - -/* Counter for _CompareSurface calls; used for filename creation when comparisons fail */ -static int _CompareSurfaceCount = 0; - -/* Compare surfaces */ -int SDLTest_CompareSurfaces(SDL_Surface *surface, SDL_Surface *referenceSurface, int allowable_error) -{ - int ret; - int i,j; - int bpp, bpp_reference; - Uint8 *p, *p_reference; - int dist; - int sampleErrorX = 0, sampleErrorY = 0, sampleDist = 0; - Uint8 R, G, B, A; - Uint8 Rd, Gd, Bd, Ad; - char imageFilename[128]; - char referenceFilename[128]; - - /* Validate input surfaces */ - if (surface == NULL || referenceSurface == NULL) { - return -1; - } - - /* Make sure surface size is the same. */ - if ((surface->w != referenceSurface->w) || (surface->h != referenceSurface->h)) { - return -2; - } - - /* Sanitize input value */ - if (allowable_error<0) { - allowable_error = 0; - } - - SDL_LockSurface( surface ); - SDL_LockSurface( referenceSurface ); - - ret = 0; - bpp = surface->format->BytesPerPixel; - bpp_reference = referenceSurface->format->BytesPerPixel; - /* Compare image - should be same format. */ - for (j=0; j<surface->h; j++) { - for (i=0; i<surface->w; i++) { - p = (Uint8 *)surface->pixels + j * surface->pitch + i * bpp; - p_reference = (Uint8 *)referenceSurface->pixels + j * referenceSurface->pitch + i * bpp_reference; - - SDL_GetRGBA(*(Uint32*)p, surface->format, &R, &G, &B, &A); - SDL_GetRGBA(*(Uint32*)p_reference, referenceSurface->format, &Rd, &Gd, &Bd, &Ad); - - dist = 0; - dist += (R-Rd)*(R-Rd); - dist += (G-Gd)*(G-Gd); - dist += (B-Bd)*(B-Bd); - - /* Allow some difference in blending accuracy */ - if (dist > allowable_error) { - ret++; - if (ret == 1) { - sampleErrorX = i; - sampleErrorY = j; - sampleDist = dist; - } - } - } - } - - SDL_UnlockSurface( surface ); - SDL_UnlockSurface( referenceSurface ); - - /* Save test image and reference for analysis on failures */ - _CompareSurfaceCount++; - if (ret != 0) { - SDLTest_LogError("Comparison of pixels with allowable error of %i failed %i times.", allowable_error, ret); - SDLTest_LogError("First detected occurrence at position %i,%i with a squared RGB-difference of %i.", sampleErrorX, sampleErrorY, sampleDist); - SDL_snprintf(imageFilename, 127, "CompareSurfaces%04d_TestOutput.bmp", _CompareSurfaceCount); - SDL_SaveBMP(surface, imageFilename); - SDL_snprintf(referenceFilename, 127, "CompareSurfaces%04d_Reference.bmp", _CompareSurfaceCount); - SDL_SaveBMP(referenceSurface, referenceFilename); - SDLTest_LogError("Surfaces from failed comparison saved as '%s' and '%s'", imageFilename, referenceFilename); - } - - return ret; -} |