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Diffstat (limited to '3rdparty/SDL2/src/SDL_hints.c')
-rw-r--r--3rdparty/SDL2/src/SDL_hints.c236
1 files changed, 0 insertions, 236 deletions
diff --git a/3rdparty/SDL2/src/SDL_hints.c b/3rdparty/SDL2/src/SDL_hints.c
deleted file mode 100644
index 390d94f9f12..00000000000
--- a/3rdparty/SDL2/src/SDL_hints.c
+++ /dev/null
@@ -1,236 +0,0 @@
-/*
- Simple DirectMedia Layer
- Copyright (C) 1997-2016 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, subject to the following restrictions:
-
- 1. The origin of this software must not be misrepresented; you must not
- claim that you wrote the original software. If you use this software
- in a product, an acknowledgment in the product documentation would be
- appreciated but is not required.
- 2. Altered source versions must be plainly marked as such, and must not be
- misrepresented as being the original software.
- 3. This notice may not be removed or altered from any source distribution.
-*/
-#include "./SDL_internal.h"
-
-#include "SDL_hints.h"
-#include "SDL_error.h"
-
-
-/* Assuming there aren't many hints set and they aren't being queried in
- critical performance paths, we'll just use linked lists here.
- */
-typedef struct SDL_HintWatch {
- SDL_HintCallback callback;
- void *userdata;
- struct SDL_HintWatch *next;
-} SDL_HintWatch;
-
-typedef struct SDL_Hint {
- char *name;
- char *value;
- SDL_HintPriority priority;
- SDL_HintWatch *callbacks;
- struct SDL_Hint *next;
-} SDL_Hint;
-
-static SDL_Hint *SDL_hints;
-
-SDL_bool
-SDL_SetHintWithPriority(const char *name, const char *value,
- SDL_HintPriority priority)
-{
- const char *env;
- SDL_Hint *hint;
- SDL_HintWatch *entry;
-
- if (!name || !value) {
- return SDL_FALSE;
- }
-
- env = SDL_getenv(name);
- if (env && priority < SDL_HINT_OVERRIDE) {
- return SDL_FALSE;
- }
-
- for (hint = SDL_hints; hint; hint = hint->next) {
- if (SDL_strcmp(name, hint->name) == 0) {
- if (priority < hint->priority) {
- return SDL_FALSE;
- }
- if (!hint->value || !value || SDL_strcmp(hint->value, value) != 0) {
- for (entry = hint->callbacks; entry; ) {
- /* Save the next entry in case this one is deleted */
- SDL_HintWatch *next = entry->next;
- entry->callback(entry->userdata, name, hint->value, value);
- entry = next;
- }
- SDL_free(hint->value);
- hint->value = value ? SDL_strdup(value) : NULL;
- }
- hint->priority = priority;
- return SDL_TRUE;
- }
- }
-
- /* Couldn't find the hint, add a new one */
- hint = (SDL_Hint *)SDL_malloc(sizeof(*hint));
- if (!hint) {
- return SDL_FALSE;
- }
- hint->name = SDL_strdup(name);
- hint->value = value ? SDL_strdup(value) : NULL;
- hint->priority = priority;
- hint->callbacks = NULL;
- hint->next = SDL_hints;
- SDL_hints = hint;
- return SDL_TRUE;
-}
-
-SDL_bool
-SDL_SetHint(const char *name, const char *value)
-{
- return SDL_SetHintWithPriority(name, value, SDL_HINT_NORMAL);
-}
-
-const char *
-SDL_GetHint(const char *name)
-{
- const char *env;
- SDL_Hint *hint;
-
- env = SDL_getenv(name);
- for (hint = SDL_hints; hint; hint = hint->next) {
- if (SDL_strcmp(name, hint->name) == 0) {
- if (!env || hint->priority == SDL_HINT_OVERRIDE) {
- return hint->value;
- }
- break;
- }
- }
- return env;
-}
-
-SDL_bool
-SDL_GetHintBoolean(const char *name, SDL_bool default_value)
-{
- const char *hint = SDL_GetHint(name);
- if (!hint) {
- return default_value;
- }
- if (*hint == '0' || SDL_strcasecmp(hint, "false") == 0) {
- return SDL_FALSE;
- }
- return SDL_TRUE;
-}
-
-void
-SDL_AddHintCallback(const char *name, SDL_HintCallback callback, void *userdata)
-{
- SDL_Hint *hint;
- SDL_HintWatch *entry;
- const char *value;
-
- if (!name || !*name) {
- SDL_InvalidParamError("name");
- return;
- }
- if (!callback) {
- SDL_InvalidParamError("callback");
- return;
- }
-
- SDL_DelHintCallback(name, callback, userdata);
-
- entry = (SDL_HintWatch *)SDL_malloc(sizeof(*entry));
- if (!entry) {
- SDL_OutOfMemory();
- return;
- }
- entry->callback = callback;
- entry->userdata = userdata;
-
- for (hint = SDL_hints; hint; hint = hint->next) {
- if (SDL_strcmp(name, hint->name) == 0) {
- break;
- }
- }
- if (!hint) {
- /* Need to add a hint entry for this watcher */
- hint = (SDL_Hint *)SDL_malloc(sizeof(*hint));
- if (!hint) {
- SDL_OutOfMemory();
- SDL_free(entry);
- return;
- }
- hint->name = SDL_strdup(name);
- hint->value = NULL;
- hint->priority = SDL_HINT_DEFAULT;
- hint->callbacks = NULL;
- hint->next = SDL_hints;
- SDL_hints = hint;
- }
-
- /* Add it to the callbacks for this hint */
- entry->next = hint->callbacks;
- hint->callbacks = entry;
-
- /* Now call it with the current value */
- value = SDL_GetHint(name);
- callback(userdata, name, value, value);
-}
-
-void
-SDL_DelHintCallback(const char *name, SDL_HintCallback callback, void *userdata)
-{
- SDL_Hint *hint;
- SDL_HintWatch *entry, *prev;
-
- for (hint = SDL_hints; hint; hint = hint->next) {
- if (SDL_strcmp(name, hint->name) == 0) {
- prev = NULL;
- for (entry = hint->callbacks; entry; entry = entry->next) {
- if (callback == entry->callback && userdata == entry->userdata) {
- if (prev) {
- prev->next = entry->next;
- } else {
- hint->callbacks = entry->next;
- }
- SDL_free(entry);
- break;
- }
- prev = entry;
- }
- return;
- }
- }
-}
-
-void SDL_ClearHints(void)
-{
- SDL_Hint *hint;
- SDL_HintWatch *entry;
-
- while (SDL_hints) {
- hint = SDL_hints;
- SDL_hints = hint->next;
-
- SDL_free(hint->name);
- SDL_free(hint->value);
- for (entry = hint->callbacks; entry; ) {
- SDL_HintWatch *freeable = entry;
- entry = entry->next;
- SDL_free(freeable);
- }
- SDL_free(hint);
- }
-}
-
-/* vi: set ts=4 sw=4 expandtab: */