static size_t SDLCALL
win32_file_read(SDL_RWops * context, void *ptr, size_t size, size_t maxnum)
{
size_t total_need;
size_t total_read = 0;
size_t read_ahead;
DWORD byte_read;
total_need = size * maxnum;
if (!context || context->hidden.win32io.h == INVALID_HANDLE_VALUE
|| !total_need)
return 0;
if (context->hidden.win32io.buffer.left > 0) {
void *data = (char *) context->hidden.win32io.buffer.data +
context->hidden.win32io.buffer.size -
context->hidden.win32io.buffer.left;
read_ahead =
SDL_min(total_need, context->hidden.win32io.buffer.left);
SDL_memcpy(ptr, data, read_ahead);
context->hidden.win32io.buffer.left -= read_ahead;
if (read_ahead == total_need) {
return maxnum;
}
ptr = (char *) ptr + read_ahead;
total_need -= read_ahead;
total_read += read_ahead;
}
if (total_need < READAHEAD_BUFFER_SIZE) {
if (!ReadFile
(context->hidden.win32io.h, context->hidden.win32io.buffer.data,
READAHEAD_BUFFER_SIZE, &byte_read, NULL)) {
SDL_Error(SDL_EFREAD);
return 0;
}
read_ahead = SDL_min(total_need, (int) byte_read);
SDL_memcpy(ptr, context->hidden.win32io.buffer.data, read_ahead);
context->hidden.win32io.buffer.size = byte_read;
context->hidden.win32io.buffer.left = byte_read - read_ahead;
total_read += read_ahead;
} else {
if (!ReadFile
(context->hidden.win32io.h, ptr, (DWORD)total_need, &byte_read, NULL)) {
SDL_Error(SDL_EFREAD);
return 0;
}
total_read += byte_read;
}
return (total_read / size);
}
size_t SDL_utf8strlcpy(char *dst, const char *src, size_t dst_bytes)
{
size_t src_bytes = SDL_strlen(src);
size_t bytes = SDL_min(src_bytes, dst_bytes - 1);
size_t i = 0;
char trailing_bytes = 0;
if (bytes)
{
unsigned char c = (unsigned char)src[bytes - 1];
if (UTF8_IsLeadByte(c))
--bytes;
else if (UTF8_IsTrailingByte(c))
{
for (i = bytes - 1; i != 0; --i)
{
c = (unsigned char)src[i];
trailing_bytes = UTF8_TrailingBytes(c);
if (trailing_bytes)
{
if (bytes - i != trailing_bytes + 1)
bytes = i;
break;
}
}
}
SDL_memcpy(dst, src, bytes);
}
dst[bytes] = '\0';
return bytes;
}
void VID_Init (void)
{
int i;
// Enumerate modes.
vid_num_modes = SDL_min(VID_MAX_MODES, SDL_GetNumDisplayModes(0));
for (i = 0; i < vid_num_modes; ++i)
{
SDL_DisplayMode mode = { 0 };
SDL_GetDisplayMode(0, i, &mode);
vid_modes[i].width = mode.w;
vid_modes[i].height = mode.h;
}
qsort(&vid_modes[0], vid_num_modes, sizeof(vidmode_t), &CompareModes);
/* Create the video variables so we know how to start the graphics drivers */
vid_ref = Cvar_Get ("vid_ref", "gl", CVAR_ARCHIVE);
vid_fullscreen = Cvar_Get ("vid_fullscreen", "0", CVAR_ARCHIVE);
vid_gamma = Cvar_Get( "vid_gamma", "1", CVAR_ARCHIVE );
/* Add some console commands that we want to handle */
Cmd_AddCommand ("vid_restart", VID_Restart_f);
/* Start the graphics mode and load refresh DLL */
VID_CheckChanges();
}
bool SDLManager::checkOSEvents()
{
const bool CLOSE = true;
const bool OPEN = false;
if (SDL_PollEvent(eventQueue.get()) == 1)
{
if (eventQueue->type == SDL_WINDOWEVENT)
{
switch (eventQueue->window.event)
{
case SDL_WINDOWEVENT_RESIZED:
{
resize_factor = SDL_min(eventQueue->window.data1 / 64, eventQueue->window.data2 / 32);
} break;
case SDL_WINDOWEVENT_CLOSE:
{
return CLOSE;
} break;
default:
return OPEN;
}
}
}
return OPEN;
}
static Sint64 SDLCALL rw_seekfunc(SDL_RWops *context, Sint64 offset, int whence) {
Sint64 newpos;
if (context->type != SDL_RW_TAG_CURRENT) {
return SDL_SetError("bad RWops type");
}
switch (whence) {
case RW_SEEK_SET:
newpos = context->hidden.rwops.begin + offset;
break;
case RW_SEEK_CUR:
newpos = context->hidden.rwops.current + offset;
break;
case RW_SEEK_END:
newpos = context->hidden.rwops.end + offset;
break;
default:
return SDL_SetError("Unknown value for seek 'whence'");
}
context->hidden.rwops.current = SDL_max(
SDL_min(newpos, context->hidden.rwops.end),
context->hidden.rwops.begin
);
return newpos - context->hidden.rwops.begin;
}
int AudioQueue_copy (AudioQueue* self, Uint8* buf, int size)
{
if (size <= 0) return 0;
if (SDL_SemValue(self->full_node) > 0) {
if (!self->buf) self->buf = self->cur->buf;
int cur_size = self->cur->size - (self->buf - self->cur->buf);
int size_taken = SDL_min(size, cur_size);
Copy(buf, self->buf, size_taken, Uint8);
cur_size -= size_taken;
if (cur_size <= 0) {
// move to the next node
SDL_SemPost(self->empty_node);
if (++self->cur - self->nodes >= self->n) self->cur = self->nodes;
self->buf = NULL;
buf += size_taken;
size -= size_taken;
SDL_SemWait(self->full_node); // this never blocks
return size_taken + AudioQueue_copy(self, buf, size);
}
else {
// didn't use the entire current node
self->buf += size_taken;
return size_taken;
}
}
else {
Zero(buf, size, Uint8);
return 0;
}
}
static void
handle_configure_wl_shell_surface(void *data, struct wl_shell_surface *shell_surface,
uint32_t edges, int32_t width, int32_t height)
{
SDL_WindowData *wind = (SDL_WindowData *)data;
SDL_Window *window = wind->sdlwindow;
struct wl_region *region;
/* wl_shell_surface spec states that this is a suggestion.
Ignore if less than or greater than max/min size. */
if (width == 0 || height == 0) {
return;
}
if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
if ((window->flags & SDL_WINDOW_RESIZABLE)) {
if (window->max_w > 0) {
width = SDL_min(width, window->max_w);
}
width = SDL_max(width, window->min_w);
if (window->max_h > 0) {
height = SDL_min(height, window->max_h);
}
height = SDL_max(height, window->min_h);
} else {
return;
}
}
if (width == window->w && height == window->h) {
return;
}
window->w = width;
window->h = height;
WAYLAND_wl_egl_window_resize(wind->egl_window, window->w, window->h, 0, 0);
region = wl_compositor_create_region(wind->waylandData->compositor);
wl_region_add(region, 0, 0, window->w, window->h);
wl_surface_set_opaque_region(wind->surface, region);
wl_region_destroy(region);
SDL_SendWindowEvent(window, SDL_WINDOWEVENT_RESIZED, window->w, window->h);
}
SDL_JoystickGUID SDL_SYS_JoystickGetDeviceGUID( int device_index )
{
SDL_JoystickGUID guid;
/* the GUID is just the first 16 chars of the name for now */
const char *name = SDL_SYS_JoystickNameForDeviceIndex( device_index );
SDL_zero( guid );
SDL_memcpy( &guid, name, SDL_min( sizeof(guid), SDL_strlen( name ) ) );
return guid;
}
SDL_JoystickGUID SDL_SYS_JoystickGetGUID(SDL_Joystick * joystick)
{
SDL_JoystickGUID guid;
/* the GUID is just the first 16 chars of the name for now */
const char *name = joystick->name;
SDL_zero( guid );
SDL_memcpy( &guid, name, SDL_min( sizeof(guid), SDL_strlen( name ) ) );
return guid;
}
int
Android_AddJoystick(int device_id, const char *name, const char *desc, SDL_bool is_accelerometer, int nbuttons, int naxes, int nhats, int nballs)
{
SDL_JoystickGUID guid;
SDL_joylist_item *item;
if(JoystickByDeviceId(device_id) != NULL || name == NULL) {
return -1;
}
/* the GUID is just the first 16 chars of the name for now */
SDL_zero( guid );
SDL_memcpy( &guid, desc, SDL_min( sizeof(guid), SDL_strlen( desc) ) );
item = (SDL_joylist_item *) SDL_malloc(sizeof (SDL_joylist_item));
if (item == NULL) {
return -1;
}
SDL_zerop(item);
item->guid = guid;
item->device_id = device_id;
item->name = SDL_strdup(name);
if ( item->name == NULL ) {
SDL_free(item);
return -1;
}
item->is_accelerometer = is_accelerometer;
if (nbuttons > -1) {
item->nbuttons = nbuttons;
}
else {
item->nbuttons = ANDROID_MAX_NBUTTONS;
}
item->naxes = naxes;
item->nhats = nhats;
item->nballs = nballs;
item->device_instance = instance_counter++;
if (SDL_joylist_tail == NULL) {
SDL_joylist = SDL_joylist_tail = item;
} else {
SDL_joylist_tail->next = item;
SDL_joylist_tail = item;
}
/* Need to increment the joystick count before we post the event */
++numjoysticks;
SDL_PrivateJoystickAdded(numjoysticks - 1);
#ifdef DEBUG_JOYSTICK
SDL_Log("Added joystick %s with device_id %d", name, device_id);
#endif
return numjoysticks;
}
size_t SDL_strlcpy(char *dst, const char *src, size_t maxlen)
{
size_t srclen = SDL_strlen(src);
if ( maxlen > 0 ) {
size_t len = SDL_min(srclen, maxlen-1);
SDL_memcpy(dst, src, len);
dst[len] = '\0';
}
return srclen;
}
size_t
SDL_wcslcpy(wchar_t *dst, const wchar_t *src, size_t maxlen)
{
size_t srclen = SDL_wcslen(src);
if (maxlen > 0) {
size_t len = SDL_min(srclen, maxlen - 1);
SDL_memcpy(dst, src, len * sizeof(wchar_t));
dst[len] = '\0';
}
return srclen;
}
static void
handle_configure_xdg_toplevel(void *data,
struct xdg_toplevel *xdg_toplevel,
int32_t width,
int32_t height,
struct wl_array *states)
{
SDL_WindowData *wind = (SDL_WindowData *)data;
SDL_Window *window = wind->sdlwindow;
/* wl_shell_surface spec states that this is a suggestion.
Ignore if less than or greater than max/min size. */
if (width == 0 || height == 0) {
return;
}
if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
if ((window->flags & SDL_WINDOW_RESIZABLE)) {
if (window->max_w > 0) {
width = SDL_min(width, window->max_w);
}
width = SDL_max(width, window->min_w);
if (window->max_h > 0) {
height = SDL_min(height, window->max_h);
}
height = SDL_max(height, window->min_h);
} else {
return;
}
}
if (width == window->w && height == window->h) {
return;
}
window->w = width;
window->h = height;
}
static size_t SDLCALL rw_writefunc(SDL_RWops *context, const void *ptr, size_t size, size_t num) {
if (context->type != SDL_RW_TAG_CURRENT) {
return SDL_SetError("bad RWops type");
}
Sint64 pos = SDL_RWseek((SDL_RWops *) context->hidden.rwops.baseRW, context->hidden.rwops.current, RW_SEEK_SET);
if (pos == -1) {
return SDL_SetError("Can't seek");
}
size_t realSize = SDL_min(size * num, context->hidden.rwops.end - pos);
size_t bytesWritten = SDL_RWwrite((SDL_RWops *) context->hidden.rwops.baseRW, ptr, 1, realSize);
context->hidden.rwops.current += bytesWritten;
return bytesWritten / size;
}
size_t
SDL_strlcpy(char *dst, const char *src, size_t maxlen)
{
#if defined(HAVE_STRLCPY)
return strlcpy(dst, src, maxlen);
#else
size_t srclen = SDL_strlen(src);
if (maxlen > 0) {
size_t len = SDL_min(srclen, maxlen - 1);
SDL_memcpy(dst, src, len);
dst[len] = '\0';
}
return srclen;
#endif /* HAVE_STRLCPY */
}
size_t
SDL_wcslcpy(wchar_t *dst, const wchar_t *src, size_t maxlen)
{
#if defined(HAVE_WCSLCPY)
return wcslcpy(dst, src, maxlen);
#else
size_t srclen = SDL_wcslen(src);
if (maxlen > 0) {
size_t len = SDL_min(srclen, maxlen - 1);
SDL_memcpy(dst, src, len * sizeof(wchar_t));
dst[len] = '\0';
}
return srclen;
#endif /* HAVE_WCSLCPY */
}
static int
PULSEAUDIO_CaptureFromDevice(_THIS, void *buffer, int buflen)
{
struct SDL_PrivateAudioData *h = this->hidden;
const void *data = NULL;
size_t nbytes = 0;
while (SDL_AtomicGet(&this->enabled)) {
if (h->capturebuf != NULL) {
const int cpy = SDL_min(buflen, h->capturelen);
SDL_memcpy(buffer, h->capturebuf, cpy);
/*printf("PULSEAUDIO: fed %d captured bytes\n", cpy);*/
h->capturebuf += cpy;
h->capturelen -= cpy;
if (h->capturelen == 0) {
h->capturebuf = NULL;
PULSEAUDIO_pa_stream_drop(h->stream); /* done with this fragment. */
}
return cpy; /* new data, return it. */
}
if (PULSEAUDIO_pa_context_get_state(h->context) != PA_CONTEXT_READY ||
PULSEAUDIO_pa_stream_get_state(h->stream) != PA_STREAM_READY ||
PULSEAUDIO_pa_mainloop_iterate(h->mainloop, 1, NULL) < 0) {
SDL_OpenedAudioDeviceDisconnected(this);
return -1; /* uhoh, pulse failed! */
}
if (PULSEAUDIO_pa_stream_readable_size(h->stream) == 0) {
continue; /* no data available yet. */
}
/* a new fragment is available! */
PULSEAUDIO_pa_stream_peek(h->stream, &data, &nbytes);
SDL_assert(nbytes > 0);
if (data == NULL) { /* NULL==buffer had a hole. Ignore that. */
PULSEAUDIO_pa_stream_drop(h->stream); /* drop this fragment. */
} else {
/* store this fragment's data, start feeding it to SDL. */
/*printf("PULSEAUDIO: captured %d new bytes\n", (int) nbytes);*/
h->capturebuf = (const Uint8 *) data;
h->capturelen = nbytes;
}
}
return -1; /* not enabled? */
}
static void
DSP_FlushCapture(_THIS)
{
struct SDL_PrivateAudioData *h = this->hidden;
audio_buf_info info;
if (ioctl(h->audio_fd, SNDCTL_DSP_GETISPACE, &info) == 0) {
while (info.bytes > 0) {
char buf[512];
const size_t len = SDL_min(sizeof (buf), info.bytes);
const ssize_t br = read(h->audio_fd, buf, len);
if (br <= 0) {
break;
}
info.bytes -= br;
}
}
}
/*------------------------------------------------------
Setup OpenGL parameters
(viewport, projection, display rect, ...)
--------------------------------------------------------*/
void opengl_setup_parameters ( void )
{
float ratio_x, ratio_y;
glEnable ( GL_TEXTURE_2D );
glClearColor ( 0.0f, 0.0f, 0.0f, 0.0f );
glViewport ( 0, 0, video_screen->w, video_screen->h );
glClear ( GL_COLOR_BUFFER_BIT );
glMatrixMode ( GL_PROJECTION );
glLoadIdentity();
glOrtho ( 0.0f, video_screen->w, video_screen->h, 0.0f, -1.0f, 1.0f );
glMatrixMode ( GL_MODELVIEW );
glLoadIdentity();
ratio_x = ( float ) video_screen->w / 320.0f;
ratio_y = ( float ) video_screen->h / 240.0f;
if ( ( video_keep_aspect_ratio ) && ( video_fullscreen ) )
ratio_x = ratio_y = SDL_min ( ratio_x, ratio_y );
if ( video_display_border )
{
opengl_display_rect.w = ( int ) ( ratio_x * 304.0f + 0.5f );
opengl_display_rect.h = ( int ) ( ratio_y * 224.0f + 0.5f );
}
else
{
opengl_display_rect.w = ( int ) ( ratio_x * 320.0f + 0.5f );
opengl_display_rect.h = ( int ) ( ratio_y * 240.0f + 0.5f );
}
opengl_display_rect.x = ( video_screen->w - opengl_display_rect.w ) / 2;
opengl_display_rect.y = ( video_screen->h - opengl_display_rect.h ) / 2;
opengl_create_textures();
}
static void
NETBSDAUDIO_FlushCapture(_THIS)
{
audio_info_t info;
size_t remain;
Uint8 buf[512];
if (ioctl(this->hidden->audio_fd, AUDIO_GETINFO, &info) < 0) {
return; /* oh well. */
}
remain = (size_t) (info.record.samples * (SDL_AUDIO_BITSIZE(this->spec.format) / 8));
while (remain > 0) {
const size_t len = SDL_min(sizeof (buf), remain);
const int br = read(this->hidden->audio_fd, buf, len);
if (br <= 0) {
return; /* oh well. */
}
remain -= br;
}
}
size_t
SDL_ReadFromDataQueue(SDL_DataQueue *queue, void *_buf, const size_t _len)
{
size_t len = _len;
Uint8 *buf = (Uint8 *) _buf;
Uint8 *ptr = buf;
SDL_DataQueuePacket *packet;
if (!queue) {
return 0;
}
while ((len > 0) && ((packet = queue->head) != NULL)) {
const size_t avail = packet->datalen - packet->startpos;
const size_t cpy = SDL_min(len, avail);
SDL_assert(queue->queued_bytes >= avail);
SDL_memcpy(ptr, packet->data + packet->startpos, cpy);
packet->startpos += cpy;
ptr += cpy;
queue->queued_bytes -= cpy;
len -= cpy;
if (packet->startpos == packet->datalen) { /* packet is done, put it in the pool. */
queue->head = packet->next;
SDL_assert((packet->next != NULL) || (packet == queue->tail));
packet->next = queue->pool;
queue->pool = packet;
}
}
SDL_assert((queue->head != NULL) == (queue->queued_bytes != 0));
if (queue->head == NULL) {
queue->tail = NULL; /* in case we drained the queue entirely. */
}
return (size_t) (ptr - buf);
}
static float bestDollarDifference(SDL_FloatPoint* points,SDL_FloatPoint* templ)
{
/*------------BEGIN DOLLAR BLACKBOX------------------
-TRANSLATED DIRECTLY FROM PSUDEO-CODE AVAILABLE AT-
-"http://depts.washington.edu/aimgroup/proj/dollar/"
*/
double ta = -M_PI/4;
double tb = M_PI/4;
double dt = M_PI/90;
float x1 = (float)(PHI*ta + (1-PHI)*tb);
float f1 = dollarDifference(points,templ,x1);
float x2 = (float)((1-PHI)*ta + PHI*tb);
float f2 = dollarDifference(points,templ,x2);
while (SDL_fabs(ta-tb) > dt) {
if (f1 < f2) {
tb = x2;
x2 = x1;
f2 = f1;
x1 = (float)(PHI*ta + (1-PHI)*tb);
f1 = dollarDifference(points,templ,x1);
}
else {
ta = x1;
x1 = x2;
f1 = f2;
x2 = (float)((1-PHI)*ta + PHI*tb);
f2 = dollarDifference(points,templ,x2);
}
}
/*
if (f1 <= f2)
printf("Min angle (x1): %f\n",x1);
else if (f1 > f2)
printf("Min angle (x2): %f\n",x2);
*/
return SDL_min(f1,f2);
}
Uint32
SDL_WasInit(Uint32 flags)
{
int i;
int num_subsystems = SDL_arraysize(SDL_SubsystemRefCount);
Uint32 initialized = 0;
if (!flags) {
flags = SDL_INIT_EVERYTHING;
}
num_subsystems = SDL_min(num_subsystems, SDL_MostSignificantBitIndex32(flags) + 1);
/* Iterate over each bit in flags, and check the matching subsystem. */
for (i = 0; i < num_subsystems; ++i) {
if ((flags & 1) && SDL_SubsystemRefCount[i] > 0) {
initialized |= (1 << i);
}
flags >>= 1;
}
return initialized;
}
int
SDL_WriteToDataQueue(SDL_DataQueue *queue, const void *_data, const size_t _len)
{
size_t len = _len;
const Uint8 *data = (const Uint8 *) _data;
const size_t packet_size = queue ? queue->packet_size : 0;
SDL_DataQueuePacket *orighead;
SDL_DataQueuePacket *origtail;
size_t origlen;
size_t datalen;
if (!queue) {
return SDL_InvalidParamError("queue");
}
orighead = queue->head;
origtail = queue->tail;
origlen = origtail ? origtail->datalen : 0;
while (len > 0) {
SDL_DataQueuePacket *packet = queue->tail;
SDL_assert(!packet || (packet->datalen <= packet_size));
if (!packet || (packet->datalen >= packet_size)) {
/* tail packet missing or completely full; we need a new packet. */
packet = queue->pool;
if (packet != NULL) {
/* we have one available in the pool. */
queue->pool = packet->next;
} else {
/* Have to allocate a new one! */
packet = (SDL_DataQueuePacket *) SDL_malloc(sizeof (SDL_DataQueuePacket) + packet_size);
if (packet == NULL) {
/* uhoh, reset so we've queued nothing new, free what we can. */
if (!origtail) {
packet = queue->head; /* whole queue. */
} else {
packet = origtail->next; /* what we added to existing queue. */
origtail->next = NULL;
origtail->datalen = origlen;
}
queue->head = orighead;
queue->tail = origtail;
queue->pool = NULL;
SDL_FreeDataQueueList(packet); /* give back what we can. */
return SDL_OutOfMemory();
}
}
packet->datalen = 0;
packet->startpos = 0;
packet->next = NULL;
SDL_assert((queue->head != NULL) == (queue->queued_bytes != 0));
if (queue->tail == NULL) {
queue->head = packet;
} else {
queue->tail->next = packet;
}
queue->tail = packet;
}
datalen = SDL_min(len, packet_size - packet->datalen);
SDL_memcpy(packet->data + packet->datalen, data, datalen);
data += datalen;
len -= datalen;
packet->datalen += datalen;
queue->queued_bytes += datalen;
}
return 0;
}
static int
SDL_RendererEventWatch(void *userdata, SDL_Event *event)
{
SDL_Renderer *renderer = (SDL_Renderer *)userdata;
if (event->type == SDL_WINDOWEVENT) {
SDL_Window *window = SDL_GetWindowFromID(event->window.windowID);
if (window == renderer->window) {
if (renderer->WindowEvent) {
renderer->WindowEvent(renderer, &event->window);
}
if (event->window.event == SDL_WINDOWEVENT_SIZE_CHANGED) {
if (renderer->logical_w) {
UpdateLogicalSize(renderer);
} else {
/* Window was resized, reset viewport */
int w, h;
SDL_GetWindowSize(window, &w, &h);
if (renderer->target) {
renderer->viewport_backup.x = 0;
renderer->viewport_backup.y = 0;
renderer->viewport_backup.w = w;
renderer->viewport_backup.h = h;
} else {
renderer->viewport.x = 0;
renderer->viewport.y = 0;
renderer->viewport.w = w;
renderer->viewport.h = h;
renderer->UpdateViewport(renderer);
}
}
} else if (event->window.event == SDL_WINDOWEVENT_HIDDEN) {
renderer->hidden = SDL_TRUE;
} else if (event->window.event == SDL_WINDOWEVENT_SHOWN) {
if (!(SDL_GetWindowFlags(window) & SDL_WINDOW_MINIMIZED)) {
renderer->hidden = SDL_FALSE;
}
} else if (event->window.event == SDL_WINDOWEVENT_MINIMIZED) {
renderer->hidden = SDL_TRUE;
} else if (event->window.event == SDL_WINDOWEVENT_RESTORED) {
if (!(SDL_GetWindowFlags(window) & SDL_WINDOW_HIDDEN)) {
renderer->hidden = SDL_FALSE;
}
}
}
} else if (event->type == SDL_MOUSEMOTION) {
if (renderer->logical_w) {
event->motion.x -= renderer->viewport.x;
event->motion.y -= renderer->viewport.y;
event->motion.x = (int)(event->motion.x / renderer->scale.x);
event->motion.y = (int)(event->motion.y / renderer->scale.y);
if (event->motion.xrel > 0) {
event->motion.xrel = SDL_max(1, (int)(event->motion.xrel / renderer->scale.x));
} else if (event->motion.xrel < 0) {
event->motion.xrel = SDL_min(-1, (int)(event->motion.xrel / renderer->scale.x));
}
if (event->motion.yrel > 0) {
event->motion.yrel = SDL_max(1, (int)(event->motion.yrel / renderer->scale.y));
} else if (event->motion.yrel < 0) {
event->motion.yrel = SDL_min(-1, (int)(event->motion.yrel / renderer->scale.y));
}
}
} else if (event->type == SDL_MOUSEBUTTONDOWN ||
event->type == SDL_MOUSEBUTTONUP) {
if (renderer->logical_w) {
event->button.x -= renderer->viewport.x;
event->button.y -= renderer->viewport.y;
event->button.x = (int)(event->button.x / renderer->scale.x);
event->button.y = (int)(event->button.y / renderer->scale.y);
}
}
return 0;
}
int
Android_AddJoystick(int device_id, const char *name, SDL_bool is_accelerometer, int nbuttons, int naxes, int nhats, int nballs)
{
SDL_JoystickGUID guid;
SDL_joylist_item *item;
#if !SDL_EVENTS_DISABLED
SDL_Event event;
#endif
if(JoystickByDeviceId(device_id) != NULL || name == NULL) {
return -1;
}
/* the GUID is just the first 16 chars of the name for now */
SDL_zero( guid );
SDL_memcpy( &guid, name, SDL_min( sizeof(guid), SDL_strlen( name ) ) );
item = (SDL_joylist_item *) SDL_malloc(sizeof (SDL_joylist_item));
if (item == NULL) {
return -1;
}
SDL_zerop(item);
item->guid = guid;
item->device_id = device_id;
item->name = SDL_strdup(name);
if ( item->name == NULL ) {
SDL_free(item);
return -1;
}
item->is_accelerometer = is_accelerometer;
if (nbuttons > -1) {
item->nbuttons = nbuttons;
}
else {
item->nbuttons = ANDROID_MAX_NBUTTONS;
}
item->naxes = naxes;
item->nhats = nhats;
item->nballs = nballs;
item->device_instance = instance_counter++;
if (SDL_joylist_tail == NULL) {
SDL_joylist = SDL_joylist_tail = item;
} else {
SDL_joylist_tail->next = item;
SDL_joylist_tail = item;
}
/* Need to increment the joystick count before we post the event */
++numjoysticks;
#if !SDL_EVENTS_DISABLED
event.type = SDL_JOYDEVICEADDED;
if (SDL_GetEventState(event.type) == SDL_ENABLE) {
event.jdevice.which = (numjoysticks - 1);
if ( (SDL_EventOK == NULL) ||
(*SDL_EventOK) (SDL_EventOKParam, &event) ) {
SDL_PushEvent(&event);
}
}
#endif /* !SDL_EVENTS_DISABLED */
SDL_Log("Added joystick %s with device_id %d", name, device_id);
return numjoysticks;
}
static int
SDL_PrivateSendMouseButton(SDL_Window * window, SDL_MouseID mouseID, Uint8 state, Uint8 button, int clicks)
{
SDL_Mouse *mouse = SDL_GetMouse();
int posted;
Uint32 type;
Uint32 buttonstate = mouse->buttonstate;
/* SDL_HINT_MOUSE_TOUCH_EVENTS: controlling whether mouse events should generate synthetic touch events */
if (mouse->mouse_touch_events) {
if (mouseID != SDL_TOUCH_MOUSEID && button == SDL_BUTTON_LEFT) {
if (state == SDL_PRESSED) {
track_mouse_down = SDL_TRUE;
} else {
track_mouse_down = SDL_FALSE;
}
if (window) {
float fx = (float)mouse->x / (float)window->w;
float fy = (float)mouse->y / (float)window->h;
SDL_SendTouch(SDL_MOUSE_TOUCHID, 0, track_mouse_down, fx, fy, 1.0f);
}
}
}
/* Figure out which event to perform */
switch (state) {
case SDL_PRESSED:
type = SDL_MOUSEBUTTONDOWN;
buttonstate |= SDL_BUTTON(button);
break;
case SDL_RELEASED:
type = SDL_MOUSEBUTTONUP;
buttonstate &= ~SDL_BUTTON(button);
break;
default:
/* Invalid state -- bail */
return 0;
}
/* We do this after calculating buttonstate so button presses gain focus */
if (window && state == SDL_PRESSED) {
SDL_UpdateMouseFocus(window, mouse->x, mouse->y, buttonstate);
}
if (buttonstate == mouse->buttonstate) {
/* Ignore this event, no state change */
return 0;
}
mouse->buttonstate = buttonstate;
if (clicks < 0) {
SDL_MouseClickState *clickstate = GetMouseClickState(mouse, button);
if (clickstate) {
if (state == SDL_PRESSED) {
Uint32 now = SDL_GetTicks();
if (SDL_TICKS_PASSED(now, clickstate->last_timestamp + mouse->double_click_time) ||
SDL_abs(mouse->x - clickstate->last_x) > mouse->double_click_radius ||
SDL_abs(mouse->y - clickstate->last_y) > mouse->double_click_radius) {
clickstate->click_count = 0;
}
clickstate->last_timestamp = now;
clickstate->last_x = mouse->x;
clickstate->last_y = mouse->y;
if (clickstate->click_count < 255) {
++clickstate->click_count;
}
}
clicks = clickstate->click_count;
} else {
clicks = 1;
}
}
/* Post the event, if desired */
posted = 0;
if (SDL_GetEventState(type) == SDL_ENABLE) {
SDL_Event event;
event.type = type;
event.button.windowID = mouse->focus ? mouse->focus->id : 0;
event.button.which = mouseID;
event.button.state = state;
event.button.button = button;
event.button.clicks = (Uint8) SDL_min(clicks, 255);
event.button.x = mouse->x;
event.button.y = mouse->y;
posted = (SDL_PushEvent(&event) > 0);
}
/* We do this after dispatching event so button releases can lose focus */
if (window && state == SDL_RELEASED) {
SDL_UpdateMouseFocus(window, mouse->x, mouse->y, buttonstate);
}
return posted;
}
static int MusicResource_load_music (void* udata)
{
MusicResource* self = (MusicResource*)udata;
SDL_RWops* stream = ArchiveEntry_get_stream(self->entry);
Uint8 shift = *self->entry->ext_data;
bool compressed = shift != 0xFF;
Uint8* output_buffer = NULL;
Sint32 size = 0;
Sint32 remaining_size = self->entry->size;
Sint16 cur_value = 0;
// want audio samples bytes of usable data at the end, so divide by
// what we would normally multiply by to get the output size
Sint32 unpacked_size = _audio.spec.samples / self->queue.cvt.len_ratio;
// audio unpacks to twice the size if DW ADPCM compressed
int unpacking_mult = compressed ? 2 : 1;
// we need less input if we get more by unpacking
Sint32 node_size = unpacked_size / unpacking_mult;
while (!self->stop) {
// we're at the start of a new node
if (size <= 0) {
size = node_size;
output_buffer = AudioQueue_next(&self->queue, unpacked_size, SDL_TRUE);
}
Sint32 size_taken = SDL_min(size, remaining_size);
remaining_size -= size_taken;
size -= size_taken;
Uint8* input_buffer = compressed ? output_buffer + size_taken : output_buffer;
if (self->stop) break;
SDL_RWread(stream, input_buffer, size_taken, 1);
if (self->stop) break;
if (shift != 0xFF) {
// DW ADPCM compressed
Sint16* output_buf = (Sint16*)output_buffer;
Sint8* input_buf = (Sint8*)input_buffer;
Sint8* input_end = input_buf + size_taken;
while (input_buf < input_end) {
cur_value += *input_buf++;
*output_buf++ = SDL_SwapLE16(cur_value << shift);
}
}
if (size > 0) {
// unfinished buffer
output_buffer += size_taken * unpacking_mult;
}
else {
// convert and push the buffer we got with "next" to the queue
AudioQueue_push(&self->queue);
}
if (remaining_size <= 0) {
// loop back to the start of the audio
SDL_RWseek(stream, self->entry->offset, SEEK_SET);
remaining_size = self->entry->size;
cur_value = 0;
}
}
SDL_RWclose(stream);
AudioQueue_destroy_buffers(&self->queue);
return 0;
}
