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test: Reimplemented SDLTest_CommonUsage() to restore binary compatibility.

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Fixes Bugzilla #4975.
This commit is contained in:
Ryan C. Gordon 2020-02-12 13:09:38 -05:00
parent 0a6d80abf7
commit afb70f2681
2 changed files with 79 additions and 0 deletions
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13
include/SDL_test_common.h
View File

@ -155,6 +155,19 @@ int SDLTest_CommonArg(SDLTest_CommonState * state, int index);
*/
void SDLTest_CommonLogUsage(SDLTest_CommonState * state, const char *argv0, const char **options);
/**
* \brief Returns common usage information
*
* You should (probably) be using SDLTest_CommonLogUsage() instead, but this
* function remains for binary compatibility. Strings returned from this
* function are valid until SDLTest_CommonQuit() is called, in which case
* those strings' memory is freed and can no longer be used.
*
* \param state The common state describing the test window to create.
* \returns String with usage information
*/
const char *SDLTest_CommonUsage(SDLTest_CommonState * state);
/**
* \brief Open test window.
*

66
src/test/SDL_test_common.c
View File

@ -521,6 +521,65 @@ SDLTest_CommonLogUsage(SDLTest_CommonState * state, const char *argv0, const cha
}
}
static const char *
BuildCommonUsageString(char **pstr, const char **strlist, const int numitems, const char **strlist2, const int numitems2)
{
char *str = *pstr;
if (!str) {
size_t len = SDL_strlen("[--trackmem]") + 2;
int i;
for (i = 0; i < numitems; i++) {
len += SDL_strlen(strlist[i]) + 1;
}
if (strlist2) {
for (i = 0; i < numitems2; i++) {
len += SDL_strlen(strlist2[i]) + 1;
}
}
str = (char *) SDL_calloc(1, len);
if (!str) {
return ""; /* oh well. */
}
SDL_strlcat(str, "[--trackmem] ", len);
for (i = 0; i < numitems-1; i++) {
SDL_strlcat(str, strlist[i], len);
SDL_strlcat(str, " ", len);
}
SDL_strlcat(str, strlist[i], len);
if (strlist2) {
SDL_strlcat(str, " ", len);
for (i = 0; i < numitems2-1; i++) {
SDL_strlcat(str, strlist2[i], len);
SDL_strlcat(str, " ", len);
}
SDL_strlcat(str, strlist2[i], len);
}
*pstr = str;
}
return str;
}
static char *common_usage_video = NULL;
static char *common_usage_audio = NULL;
static char *common_usage_videoaudio = NULL;
const char *
SDLTest_CommonUsage(SDLTest_CommonState * state)
{
switch (state->flags & (SDL_INIT_VIDEO | SDL_INIT_AUDIO)) {
case SDL_INIT_VIDEO:
return BuildCommonUsageString(&common_usage_video, video_usage, SDL_arraysize(video_usage), NULL, 0);
case SDL_INIT_AUDIO:
return BuildCommonUsageString(&common_usage_audio, audio_usage, SDL_arraysize(audio_usage), NULL, 0);
case (SDL_INIT_VIDEO | SDL_INIT_AUDIO):
return BuildCommonUsageString(&common_usage_videoaudio, video_usage, SDL_arraysize(video_usage), audio_usage, SDL_arraysize(audio_usage));
default:
return "[--trackmem]";
}
}
SDL_bool
SDLTest_CommonDefaultArgs(SDLTest_CommonState *state, const int argc, char **argv)
{
@ -1852,6 +1911,13 @@ SDLTest_CommonQuit(SDLTest_CommonState * state)
{
int i;
SDL_free(common_usage_video);
SDL_free(common_usage_audio);
SDL_free(common_usage_videoaudio);
common_usage_video = NULL;
common_usage_audio = NULL;
common_usage_videoaudio = NULL;
SDL_free(state->windows);
if (state->targets) {
for (i = 0; i < state->num_windows; ++i) {