SDL_test_compare.h File Reference
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Functions | |
| int | SDLTest_CompareSurfaces (SDL_Surface *surface, SDL_Surface *referenceSurface, int allowable_error) |
| int | SDLTest_CompareSurfacesIgnoreTransparentPixels (SDL_Surface *surface, SDL_Surface *referenceSurface, int allowable_error) |
| int | SDLTest_CompareMemory (const void *actual, size_t size_actual, const void *reference, size_t size_reference) |
Function Documentation
◆ SDLTest_CompareMemory()
| int SDLTest_CompareMemory | ( | const void * | actual, |
| size_t | size_actual, | ||
| const void * | reference, | ||
| size_t | size_reference ) |
Compares 2 memory blocks for equality
- Parameters
-
actual Memory used in comparison, displayed on the left size_actual Size of actual in bytes reference Reference memory, displayed on the right size_reference Size of reference in bytes
- Returns
- 0 if the left and right memory block are equal, non-zero if they are non-equal.
- Since
- This function is available since SDL 3.2.0.
◆ SDLTest_CompareSurfaces()
| int SDLTest_CompareSurfaces | ( | SDL_Surface * | surface, |
| SDL_Surface * | referenceSurface, | ||
| int | allowable_error ) |
Comparison function of SDL test framework.
This code is a part of the SDL test library, not the main SDL library. Compares a surface and with reference image data for equality
- Parameters
-
surface Surface used in comparison referenceSurface Test Surface used in comparison 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.
◆ SDLTest_CompareSurfacesIgnoreTransparentPixels()
| int SDLTest_CompareSurfacesIgnoreTransparentPixels | ( | SDL_Surface * | surface, |
| SDL_Surface * | referenceSurface, | ||
| int | allowable_error ) |
