Fixed crash if initialization of EGL failed but was tried again later.

The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2025-12-16 16:37:09 +00:00 · 2015-06-21 17:33:46 +02:00
commit 0e45984fa0
1596 changed files with 468120 additions and 0 deletions
--- a/test/testresample.c
+++ b/test/testresample.c
@@ -0,0 +1,118 @@
+/*
+  Copyright (C) 1997-2015 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.
+*/
+
+#include "SDL.h"
+
+int
+main(int argc, char **argv)
+{
+    SDL_AudioSpec spec;
+    SDL_AudioCVT cvt;
+    Uint32 len = 0;
+    Uint8 *data = NULL;
+    int cvtfreq = 0;
+    int bitsize = 0;
+    int blockalign = 0;
+    int avgbytes = 0;
+    SDL_RWops *io = NULL;
+
+	/* Enable standard application logging */
+    SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
+
+    if (argc != 4) {
+        SDL_Log("USAGE: %s in.wav out.wav newfreq\n", argv[0]);
+        return 1;
+    }
+
+    cvtfreq = SDL_atoi(argv[3]);
+
+    if (SDL_Init(SDL_INIT_AUDIO) == -1) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "SDL_Init() failed: %s\n", SDL_GetError());
+        return 2;
+    }
+
+    if (SDL_LoadWAV(argv[1], &spec, &data, &len) == NULL) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "failed to load %s: %s\n", argv[1], SDL_GetError());
+        SDL_Quit();
+        return 3;
+    }
+
+    if (SDL_BuildAudioCVT(&cvt, spec.format, spec.channels, spec.freq,
+                          spec.format, spec.channels, cvtfreq) == -1) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "failed to build CVT: %s\n", SDL_GetError());
+        SDL_FreeWAV(data);
+        SDL_Quit();
+        return 4;
+    }
+
+    cvt.len = len;
+    cvt.buf = (Uint8 *) SDL_malloc(len * cvt.len_mult);
+    if (cvt.buf == NULL) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Out of memory.\n");
+        SDL_FreeWAV(data);
+        SDL_Quit();
+        return 5;
+    }
+    SDL_memcpy(cvt.buf, data, len);
+
+    if (SDL_ConvertAudio(&cvt) == -1) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Conversion failed: %s\n", SDL_GetError());
+        SDL_free(cvt.buf);
+        SDL_FreeWAV(data);
+        SDL_Quit();
+        return 6;
+    }
+
+    /* write out a WAV header... */
+    io = SDL_RWFromFile(argv[2], "wb");
+    if (io == NULL) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "fopen('%s') failed: %s\n", argv[2], SDL_GetError());
+        SDL_free(cvt.buf);
+        SDL_FreeWAV(data);
+        SDL_Quit();
+        return 7;
+    }
+
+    bitsize = SDL_AUDIO_BITSIZE(spec.format);
+    blockalign = (bitsize / 8) * spec.channels;
+    avgbytes = cvtfreq * blockalign;
+
+    SDL_WriteLE32(io, 0x46464952);      /* RIFF */
+    SDL_WriteLE32(io, len * cvt.len_mult + 36);
+    SDL_WriteLE32(io, 0x45564157);      /* WAVE */
+    SDL_WriteLE32(io, 0x20746D66);      /* fmt */
+    SDL_WriteLE32(io, 16);      /* chunk size */
+    SDL_WriteLE16(io, 1);       /* uncompressed */
+    SDL_WriteLE16(io, spec.channels);   /* channels */
+    SDL_WriteLE32(io, cvtfreq); /* sample rate */
+    SDL_WriteLE32(io, avgbytes);        /* average bytes per second */
+    SDL_WriteLE16(io, blockalign);      /* block align */
+    SDL_WriteLE16(io, bitsize); /* significant bits per sample */
+    SDL_WriteLE32(io, 0x61746164);      /* data */
+    SDL_WriteLE32(io, cvt.len_cvt);     /* size */
+    SDL_RWwrite(io, cvt.buf, cvt.len_cvt, 1);
+
+    if (SDL_RWclose(io) == -1) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "fclose('%s') failed: %s\n", argv[2], SDL_GetError());
+        SDL_free(cvt.buf);
+        SDL_FreeWAV(data);
+        SDL_Quit();
+        return 8;
+    }                           /* if */
+
+    SDL_free(cvt.buf);
+    SDL_FreeWAV(data);
+    SDL_Quit();
+    return 0;
+}                               /* main */
+
+/* end of testresample.c ... */