mirror of https://github.com/encounter/SDL.git
137 lines
3.8 KiB
C
137 lines
3.8 KiB
C
/* See COPYING.txt for the full license governing this code. */
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/**
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* \file screenshot.c
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*
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* Source file for the screenshot API.
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*/
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#include "SDL_visualtest_mischelper.h"
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#include <SDL_test.h>
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int
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SDLVisualTest_VerifyScreenshots(char* args, char* test_dir, char* verify_dir)
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{
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int i, verify_len, return_code, test_len;
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char hash[33];
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char* verify_path; /* path to the bmp file used for verification */
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char* test_path; /* path to the bmp file to be verified */
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SDL_RWops* rw;
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SDL_Surface* verifybmp;
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return_code = 1;
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if(!args)
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{
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SDLTest_LogError("args argument cannot be NULL");
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return_code = -1;
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goto verifyscreenshots_cleanup_generic;
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}
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if(!test_dir)
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{
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SDLTest_LogError("test_dir argument cannot be NULL");
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return_code = -1;
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goto verifyscreenshots_cleanup_generic;
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}
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if(!verify_dir)
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{
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SDLTest_LogError("verify_dir argument cannot be NULL");
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return_code = -1;
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goto verifyscreenshots_cleanup_generic;
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}
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/* generate the MD5 hash */
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SDLVisualTest_HashString(args, hash);
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/* find the verification image */
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/* path_len + hash_len + some number of extra characters */
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verify_len = SDL_strlen(verify_dir) + 32 + 10;
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verify_path = (char*)SDL_malloc(verify_len * sizeof(char));
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if(!verify_path)
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{
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SDLTest_LogError("malloc() failed");
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return_code = -1;
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goto verifyscreenshots_cleanup_generic;
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}
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SDL_snprintf(verify_path, verify_len - 1,
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"%s/%s.bmp", verify_dir, hash);
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rw = SDL_RWFromFile(verify_path, "rb");
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if(!rw)
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{
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SDLTest_Log("Verification image does not exist."
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" Please manually verify that the SUT is working correctly.");
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return_code = 2;
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goto verifyscreenshots_cleanup_verifypath;
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}
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/* load the verification image */
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verifybmp = SDL_LoadBMP_RW(rw, 1);
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if(!verifybmp)
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{
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SDLTest_LogError("SDL_LoadBMP_RW() failed");
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return_code = -1;
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goto verifyscreenshots_cleanup_verifypath;
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}
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/* load the test images and compare with the verification image */
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/* path_len + hash_len + some number of extra characters */
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test_len = SDL_strlen(test_dir) + 32 + 10;
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test_path = (char*)SDL_malloc(test_len * sizeof(char));
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if(!test_path)
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{
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SDLTest_LogError("malloc() failed");
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return_code = -1;
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goto verifyscreenshots_cleanup_verifybmp;
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}
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for(i = 1; ; i++)
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{
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SDL_RWops* testrw;
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SDL_Surface* testbmp;
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if(i == 1)
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SDL_snprintf(test_path, test_len - 1, "%s/%s.bmp", test_dir, hash);
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else
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SDL_snprintf(test_path, test_len - 1, "%s/%s_%d.bmp", test_dir, hash, i);
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testrw = SDL_RWFromFile(test_path, "rb");
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/* we keep going until we've iterated through the screenshots each
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SUT window */
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if(!testrw)
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break;
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/* load the test screenshot */
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testbmp = SDL_LoadBMP_RW(testrw, 1);
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if(!testbmp)
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{
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SDLTest_LogError("SDL_LoadBMP_RW() failed");
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return_code = -1;
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goto verifyscreenshots_cleanup_verifybmp;
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}
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/* compare with the verification image */
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if(SDLTest_CompareSurfaces(testbmp, verifybmp, 0) != 0)
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{
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return_code = 0;
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SDL_FreeSurface(testbmp);
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goto verifyscreenshots_cleanup_verifybmp;
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}
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SDL_FreeSurface(testbmp);
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}
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if(i == 1)
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{
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SDLTest_LogError("No verification images found");
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return_code = -1;
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}
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verifyscreenshots_cleanup_verifybmp:
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SDL_FreeSurface(verifybmp);
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verifyscreenshots_cleanup_verifypath:
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SDL_free(verify_path);
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verifyscreenshots_cleanup_generic:
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return return_code;
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}
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