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Android: C89 cleanup to avoid warnings/errors since the default gcc mode on Android is still pre-C99.

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This commit is contained in:
Eric Wing 2016-02-09 17:36:42 -08:00
parent 5ed63ae317
commit 704298c0c2
3 changed files with 123 additions and 63 deletions
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175
src/core/android/SDL_android.c
View file

@ -561,6 +561,7 @@ int Android_JNI_OpenAudioDevice(int sampleRate, int is16Bit, int channelCount, i
{
jboolean audioBufferStereo;
int audioBufferFrames;
jboolean isCopy;
JNIEnv *env = Android_JNI_GetEnv();
@ -602,7 +603,7 @@ int Android_JNI_OpenAudioDevice(int sampleRate, int is16Bit, int channelCount, i
return 0;
}
jboolean isCopy = JNI_FALSE;
isCopy = JNI_FALSE;
if (audioBuffer16Bit) {
audioBufferPinned = (*env)->GetShortArrayElements(env, (jshortArray)audioBuffer, &isCopy);
audioBufferFrames = (*env)->GetArrayLength(env, (jshortArray)audioBuffer);
@ -654,10 +655,12 @@ void Android_JNI_CloseAudioDevice(void)
/* If the parameter silent is truthy then SDL_SetError() will not be called. */
static SDL_bool Android_JNI_ExceptionOccurred(SDL_bool silent)
{
SDL_assert(LocalReferenceHolder_IsActive());
JNIEnv *mEnv = Android_JNI_GetEnv();
jthrowable exception;
jthrowable exception = (*mEnv)->ExceptionOccurred(mEnv);
SDL_assert(LocalReferenceHolder_IsActive());
exception = (*mEnv)->ExceptionOccurred(mEnv);
if (exception != NULL) {
jmethodID mid;
@ -667,13 +670,16 @@ static SDL_bool Android_JNI_ExceptionOccurred(SDL_bool silent)
if (!silent) {
jclass exceptionClass = (*mEnv)->GetObjectClass(mEnv, exception);
jclass classClass = (*mEnv)->FindClass(mEnv, "java/lang/Class");
jstring exceptionName;
const char* exceptionNameUTF8;
jstring exceptionMessage;
mid = (*mEnv)->GetMethodID(mEnv, classClass, "getName", "()Ljava/lang/String;");
jstring exceptionName = (jstring)(*mEnv)->CallObjectMethod(mEnv, exceptionClass, mid);
const char* exceptionNameUTF8 = (*mEnv)->GetStringUTFChars(mEnv, exceptionName, 0);
exceptionName = (jstring)(*mEnv)->CallObjectMethod(mEnv, exceptionClass, mid);
exceptionNameUTF8 = (*mEnv)->GetStringUTFChars(mEnv, exceptionName, 0);
mid = (*mEnv)->GetMethodID(mEnv, exceptionClass, "getMessage", "()Ljava/lang/String;");
jstring exceptionMessage = (jstring)(*mEnv)->CallObjectMethod(mEnv, exception, mid);
exceptionMessage = (jstring)(*mEnv)->CallObjectMethod(mEnv, exception, mid);
if (exceptionMessage != NULL) {
const char* exceptionMessageUTF8 = (*mEnv)->GetStringUTFChars(mEnv, exceptionMessage, 0);
@ -856,6 +862,7 @@ int Android_JNI_FileOpen(SDL_RWops* ctx,
struct LocalReferenceHolder refs = LocalReferenceHolder_Setup(__FUNCTION__);
JNIEnv *mEnv = Android_JNI_GetEnv();
int retval;
jstring fileNameJString;
if (!LocalReferenceHolder_Init(&refs, mEnv)) {
LocalReferenceHolder_Cleanup(&refs);
@ -867,7 +874,7 @@ int Android_JNI_FileOpen(SDL_RWops* ctx,
return -1;
}
jstring fileNameJString = (*mEnv)->NewStringUTF(mEnv, fileName);
fileNameJString = (*mEnv)->NewStringUTF(mEnv, fileName);
ctx->hidden.androidio.fileNameRef = (*mEnv)->NewGlobalRef(mEnv, fileNameJString);
ctx->hidden.androidio.inputStreamRef = NULL;
ctx->hidden.androidio.readableByteChannelRef = NULL;
@ -886,10 +893,11 @@ size_t Android_JNI_FileRead(SDL_RWops* ctx, void* buffer,
if (ctx->hidden.androidio.assetFileDescriptorRef) {
size_t bytesMax = size * maxnum;
size_t result;
if (ctx->hidden.androidio.size != -1 /* UNKNOWN_LENGTH */ && ctx->hidden.androidio.position + bytesMax > ctx->hidden.androidio.size) {
bytesMax = ctx->hidden.androidio.size - ctx->hidden.androidio.position;
}
size_t result = read(ctx->hidden.androidio.fd, buffer, bytesMax );
result = read(ctx->hidden.androidio.fd, buffer, bytesMax );
if (result > 0) {
ctx->hidden.androidio.position += result;
LocalReferenceHolder_Cleanup(&refs);
@ -901,19 +909,23 @@ size_t Android_JNI_FileRead(SDL_RWops* ctx, void* buffer,
jlong bytesRemaining = (jlong) (size * maxnum);
jlong bytesMax = (jlong) (ctx->hidden.androidio.size - ctx->hidden.androidio.position);
int bytesRead = 0;
JNIEnv *mEnv;
jobject readableByteChannel;
jmethodID readMethod;
jobject byteBuffer;
/* Don't read more bytes than those that remain in the file, otherwise we get an exception */
if (bytesRemaining > bytesMax) bytesRemaining = bytesMax;
JNIEnv *mEnv = Android_JNI_GetEnv();
mEnv = Android_JNI_GetEnv();
if (!LocalReferenceHolder_Init(&refs, mEnv)) {
LocalReferenceHolder_Cleanup(&refs);
return 0;
}
jobject readableByteChannel = (jobject)ctx->hidden.androidio.readableByteChannelRef;
jmethodID readMethod = (jmethodID)ctx->hidden.androidio.readMethod;
jobject byteBuffer = (*mEnv)->NewDirectByteBuffer(mEnv, buffer, bytesRemaining);
readableByteChannel = (jobject)ctx->hidden.androidio.readableByteChannelRef;
readMethod = (jmethodID)ctx->hidden.androidio.readMethod;
byteBuffer = (*mEnv)->NewDirectByteBuffer(mEnv, buffer, bytesRemaining);
while (bytesRemaining > 0) {
/* result = readableByteChannel.read(...); */
@ -1003,6 +1015,7 @@ Sint64 Android_JNI_FileSize(SDL_RWops* ctx)
Sint64 Android_JNI_FileSeek(SDL_RWops* ctx, Sint64 offset, int whence)
{
if (ctx->hidden.androidio.assetFileDescriptorRef) {
off_t ret;
switch (whence) {
case RW_SEEK_SET:
if (ctx->hidden.androidio.size != -1 /* UNKNOWN_LENGTH */ && offset > ctx->hidden.androidio.size) offset = ctx->hidden.androidio.size;
@ -1021,11 +1034,12 @@ Sint64 Android_JNI_FileSeek(SDL_RWops* ctx, Sint64 offset, int whence)
}
whence = SEEK_SET;
off_t ret = lseek(ctx->hidden.androidio.fd, (off_t)offset, SEEK_SET);
ret = lseek(ctx->hidden.androidio.fd, (off_t)offset, SEEK_SET);
if (ret == -1) return -1;
ctx->hidden.androidio.position = ret - ctx->hidden.androidio.offset;
} else {
Sint64 newPosition;
Sint64 movement;
switch (whence) {
case RW_SEEK_SET:
@ -1049,17 +1063,18 @@ Sint64 Android_JNI_FileSeek(SDL_RWops* ctx, Sint64 offset, int whence)
newPosition = ctx->hidden.androidio.size;
}
Sint64 movement = newPosition - ctx->hidden.androidio.position;
movement = newPosition - ctx->hidden.androidio.position;
if (movement > 0) {
unsigned char buffer[4096];
/* The easy case where we're seeking forwards */
while (movement > 0) {
Sint64 amount = sizeof (buffer);
size_t result;
if (amount > movement) {
amount = movement;
}
size_t result = Android_JNI_FileRead(ctx, buffer, 1, amount);
result = Android_JNI_FileRead(ctx, buffer, 1, amount);
if (result <= 0) {
/* Failed to read/skip the required amount, so fail */
return -1;
@ -1092,21 +1107,23 @@ static jobject Android_JNI_GetSystemServiceObject(const char* name)
struct LocalReferenceHolder refs = LocalReferenceHolder_Setup(__FUNCTION__);
JNIEnv* env = Android_JNI_GetEnv();
jobject retval = NULL;
jstring service;
jmethodID mid;
jobject context;
jobject manager;
if (!LocalReferenceHolder_Init(&refs, env)) {
LocalReferenceHolder_Cleanup(&refs);
return NULL;
}
jstring service = (*env)->NewStringUTF(env, name);
jmethodID mid;
service = (*env)->NewStringUTF(env, name);
mid = (*env)->GetStaticMethodID(env, mActivityClass, "getContext", "()Landroid/content/Context;");
jobject context = (*env)->CallStaticObjectMethod(env, mActivityClass, mid);
context = (*env)->CallStaticObjectMethod(env, mActivityClass, mid);
mid = (*env)->GetMethodID(env, mActivityClass, "getSystemServiceFromUiThread", "(Ljava/lang/String;)Ljava/lang/Object;");
jobject manager = (*env)->CallObjectMethod(env, context, mid, service);
manager = (*env)->CallObjectMethod(env, context, mid, service);
(*env)->DeleteLocalRef(env, service);
@ -1118,11 +1135,12 @@ static jobject Android_JNI_GetSystemServiceObject(const char* name)
#define SETUP_CLIPBOARD(error) \
struct LocalReferenceHolder refs = LocalReferenceHolder_Setup(__FUNCTION__); \
JNIEnv* env = Android_JNI_GetEnv(); \
jobject clipboard; \
if (!LocalReferenceHolder_Init(&refs, env)) { \
LocalReferenceHolder_Cleanup(&refs); \
return error; \
} \
jobject clipboard = Android_JNI_GetSystemServiceObject("clipboard"); \
clipboard = Android_JNI_GetSystemServiceObject("clipboard"); \
if (!clipboard) { \
LocalReferenceHolder_Cleanup(&refs); \
return error; \
@ -1133,14 +1151,17 @@ static jobject Android_JNI_GetSystemServiceObject(const char* name)
int Android_JNI_SetClipboardText(const char* text)
{
/* Watch out for C89 scoping rules because of the macro */
SETUP_CLIPBOARD(-1)
jmethodID mid = (*env)->GetMethodID(env, (*env)->GetObjectClass(env, clipboard), "setText", "(Ljava/lang/CharSequence;)V");
jstring string = (*env)->NewStringUTF(env, text);
(*env)->CallVoidMethod(env, clipboard, mid, string);
(*env)->DeleteGlobalRef(env, clipboard);
(*env)->DeleteLocalRef(env, string);
/* Nest the following in a scope to avoid C89 declaration rules triggered by the macro */
{
jmethodID mid = (*env)->GetMethodID(env, (*env)->GetObjectClass(env, clipboard), "setText", "(Ljava/lang/CharSequence;)V");
jstring string = (*env)->NewStringUTF(env, text);
(*env)->CallVoidMethod(env, clipboard, mid, string);
(*env)->DeleteGlobalRef(env, clipboard);
(*env)->DeleteLocalRef(env, string);
}
CLEANUP_CLIPBOARD();
return 0;
@ -1148,25 +1169,30 @@ int Android_JNI_SetClipboardText(const char* text)
char* Android_JNI_GetClipboardText(void)
{
/* Watch out for C89 scoping rules because of the macro */
SETUP_CLIPBOARD(SDL_strdup(""))
jmethodID mid = (*env)->GetMethodID(env, (*env)->GetObjectClass(env, clipboard), "getText", "()Ljava/lang/CharSequence;");
jobject sequence = (*env)->CallObjectMethod(env, clipboard, mid);
(*env)->DeleteGlobalRef(env, clipboard);
if (sequence) {
mid = (*env)->GetMethodID(env, (*env)->GetObjectClass(env, sequence), "toString", "()Ljava/lang/String;");
jstring string = (jstring)((*env)->CallObjectMethod(env, sequence, mid));
const char* utf = (*env)->GetStringUTFChars(env, string, 0);
if (utf) {
char* text = SDL_strdup(utf);
(*env)->ReleaseStringUTFChars(env, string, utf);
/* Nest the following in a scope to avoid C89 declaration rules triggered by the macro */
{
jmethodID mid = (*env)->GetMethodID(env, (*env)->GetObjectClass(env, clipboard), "getText", "()Ljava/lang/CharSequence;");
jobject sequence = (*env)->CallObjectMethod(env, clipboard, mid);
(*env)->DeleteGlobalRef(env, clipboard);
if (sequence) {
jstring string;
const char* utf;
mid = (*env)->GetMethodID(env, (*env)->GetObjectClass(env, sequence), "toString", "()Ljava/lang/String;");
string = (jstring)((*env)->CallObjectMethod(env, sequence, mid));
utf = (*env)->GetStringUTFChars(env, string, 0);
if (utf) {
char* text = SDL_strdup(utf);
(*env)->ReleaseStringUTFChars(env, string, utf);
CLEANUP_CLIPBOARD();
CLEANUP_CLIPBOARD();
return text;
return text;
}
}
}
CLEANUP_CLIPBOARD();
return SDL_strdup("");
@ -1174,10 +1200,13 @@ char* Android_JNI_GetClipboardText(void)
SDL_bool Android_JNI_HasClipboardText(void)
{
jmethodID mid;
jboolean has;
/* Watch out for C89 scoping rules because of the macro */
SETUP_CLIPBOARD(SDL_FALSE)
jmethodID mid = (*env)->GetMethodID(env, (*env)->GetObjectClass(env, clipboard), "hasText", "()Z");
jboolean has = (*env)->CallBooleanMethod(env, clipboard, mid);
mid = (*env)->GetMethodID(env, (*env)->GetObjectClass(env, clipboard), "hasText", "()Z");
has = (*env)->CallBooleanMethod(env, clipboard, mid);
(*env)->DeleteGlobalRef(env, clipboard);
CLEANUP_CLIPBOARD();
@ -1194,49 +1223,61 @@ int Android_JNI_GetPowerInfo(int* plugged, int* charged, int* battery, int* seco
{
struct LocalReferenceHolder refs = LocalReferenceHolder_Setup(__FUNCTION__);
JNIEnv* env = Android_JNI_GetEnv();
jmethodID mid;
jobject context;
jstring action;
jclass cls;
jobject filter;
jobject intent;
jstring iname;
jmethodID imid;
jstring bname;
jmethodID bmid;
if (!LocalReferenceHolder_Init(&refs, env)) {
LocalReferenceHolder_Cleanup(&refs);
return -1;
}
jmethodID mid;
mid = (*env)->GetStaticMethodID(env, mActivityClass, "getContext", "()Landroid/content/Context;");
jobject context = (*env)->CallStaticObjectMethod(env, mActivityClass, mid);
context = (*env)->CallStaticObjectMethod(env, mActivityClass, mid);
jstring action = (*env)->NewStringUTF(env, "android.intent.action.BATTERY_CHANGED");
action = (*env)->NewStringUTF(env, "android.intent.action.BATTERY_CHANGED");
jclass cls = (*env)->FindClass(env, "android/content/IntentFilter");
cls = (*env)->FindClass(env, "android/content/IntentFilter");
mid = (*env)->GetMethodID(env, cls, "<init>", "(Ljava/lang/String;)V");
jobject filter = (*env)->NewObject(env, cls, mid, action);
filter = (*env)->NewObject(env, cls, mid, action);
(*env)->DeleteLocalRef(env, action);
mid = (*env)->GetMethodID(env, mActivityClass, "registerReceiver", "(Landroid/content/BroadcastReceiver;Landroid/content/IntentFilter;)Landroid/content/Intent;");
jobject intent = (*env)->CallObjectMethod(env, context, mid, NULL, filter);
intent = (*env)->CallObjectMethod(env, context, mid, NULL, filter);
(*env)->DeleteLocalRef(env, filter);
cls = (*env)->GetObjectClass(env, intent);
jstring iname;
jmethodID imid = (*env)->GetMethodID(env, cls, "getIntExtra", "(Ljava/lang/String;I)I");
imid = (*env)->GetMethodID(env, cls, "getIntExtra", "(Ljava/lang/String;I)I");
/* Watch out for C89 scoping rules because of the macro */
#define GET_INT_EXTRA(var, key) \
int var; \
iname = (*env)->NewStringUTF(env, key); \
int var = (*env)->CallIntMethod(env, intent, imid, iname, -1); \
var = (*env)->CallIntMethod(env, intent, imid, iname, -1); \
(*env)->DeleteLocalRef(env, iname);
jstring bname;
jmethodID bmid = (*env)->GetMethodID(env, cls, "getBooleanExtra", "(Ljava/lang/String;Z)Z");
bmid = (*env)->GetMethodID(env, cls, "getBooleanExtra", "(Ljava/lang/String;Z)Z");
/* Watch out for C89 scoping rules because of the macro */
#define GET_BOOL_EXTRA(var, key) \
int var; \
bname = (*env)->NewStringUTF(env, key); \
int var = (*env)->CallBooleanMethod(env, intent, bmid, bname, JNI_FALSE); \
var = (*env)->CallBooleanMethod(env, intent, bmid, bname, JNI_FALSE); \
(*env)->DeleteLocalRef(env, bname);
if (plugged) {
/* Watch out for C89 scoping rules because of the macro */
GET_INT_EXTRA(plug, "plugged") /* == BatteryManager.EXTRA_PLUGGED (API 5) */
if (plug == -1) {
LocalReferenceHolder_Cleanup(&refs);
@ -1248,6 +1289,7 @@ int Android_JNI_GetPowerInfo(int* plugged, int* charged, int* battery, int* seco
}
if (charged) {
/* Watch out for C89 scoping rules because of the macro */
GET_INT_EXTRA(status, "status") /* == BatteryManager.EXTRA_STATUS (API 5) */
if (status == -1) {
LocalReferenceHolder_Cleanup(&refs);
@ -1267,8 +1309,20 @@ int Android_JNI_GetPowerInfo(int* plugged, int* charged, int* battery, int* seco
}
if (percent) {
GET_INT_EXTRA(level, "level") /* == BatteryManager.EXTRA_LEVEL (API 5) */
GET_INT_EXTRA(scale, "scale") /* == BatteryManager.EXTRA_SCALE (API 5) */
int level;
int scale;
/* Watch out for C89 scoping rules because of the macro */
{
GET_INT_EXTRA(level_temp, "level") /* == BatteryManager.EXTRA_LEVEL (API 5) */
level = level_temp;
}
/* Watch out for C89 scoping rules because of the macro */
{
GET_INT_EXTRA(scale_temp, "scale") /* == BatteryManager.EXTRA_SCALE (API 5) */
scale = scale_temp;
}
if ((level == -1) || (scale == -1)) {
LocalReferenceHolder_Cleanup(&refs);
return -1;
@ -1321,14 +1375,16 @@ void Android_JNI_PollInputDevices(void)
int Android_JNI_SendMessage(int command, int param)
{
JNIEnv *env = Android_JNI_GetEnv();
jmethodID mid;
jboolean success;
if (!env) {
return -1;
}
jmethodID mid = (*env)->GetStaticMethodID(env, mActivityClass, "sendMessage", "(II)Z");
mid = (*env)->GetStaticMethodID(env, mActivityClass, "sendMessage", "(II)Z");
if (!mid) {
return -1;
}
jboolean success = (*env)->CallStaticBooleanMethod(env, mActivityClass, mid, command, param);
success = (*env)->CallStaticBooleanMethod(env, mActivityClass, mid, command, param);
return success ? 0 : -1;
}
@ -1340,11 +1396,12 @@ void Android_JNI_SuspendScreenSaver(SDL_bool suspend)
void Android_JNI_ShowTextInput(SDL_Rect *inputRect)
{
JNIEnv *env = Android_JNI_GetEnv();
jmethodID mid;
if (!env) {
return;
}
jmethodID mid = (*env)->GetStaticMethodID(env, mActivityClass, "showTextInput", "(IIII)Z");
mid = (*env)->GetStaticMethodID(env, mActivityClass, "showTextInput", "(IIII)Z");
if (!mid) {
return;
}

3
src/joystick/android/SDL_sysjoystick.c
View file

@ -323,6 +323,7 @@ Android_RemoveJoystick(int device_id)
{
SDL_joylist_item *item = SDL_joylist;
SDL_joylist_item *prev = NULL;
int retval;
#if !SDL_EVENTS_DISABLED
SDL_Event event;
#endif
@ -340,7 +341,7 @@ Android_RemoveJoystick(int device_id)
return -1;
}
const int retval = item->device_instance;
retval = item->device_instance;
if (item->joystick) {
item->joystick->hwdata = NULL;
}

8
src/main/android/SDL_android_main.c
View file

@ -22,6 +22,8 @@ JNIEXPORT int JNICALL Java_org_libsdl_app_SDLActivity_nativeInit(JNIEnv* env, jc
int i;
int argc;
int status;
int len;
char** argv;
/* This interface could expand with ABI negotiation, callbacks, etc. */
SDL_Android_Init(env, cls);
@ -30,8 +32,8 @@ JNIEXPORT int JNICALL Java_org_libsdl_app_SDLActivity_nativeInit(JNIEnv* env, jc
/* Prepare the arguments. */
int len = (*env)->GetArrayLength(env, array);
char* argv[1 + len + 1];
len = (*env)->GetArrayLength(env, array);
argv = SDL_stack_alloc(char*, 1 + len + 1);
argc = 0;
/* Use the name "app_process" so PHYSFS_platformCalcBaseDir() works.
https://bitbucket.org/MartinFelis/love-android-sdl2/issue/23/release-build-crash-on-start
@ -66,7 +68,7 @@ JNIEXPORT int JNICALL Java_org_libsdl_app_SDLActivity_nativeInit(JNIEnv* env, jc
for (i = 0; i < argc; ++i) {
SDL_free(argv[i]);
}
SDL_stack_free(argv);
/* Do not issue an exit or the whole application will terminate instead of just the SDL thread */
/* exit(status); */