d_define_method(stream, seek)(struct s_object *self, off_t offset, enum e_stream_seek whence, off_t *moved) {
d_using(stream);
int whence_local = SEEK_SET;
off_t moved_local;
if ((stream_attributes->flags&e_stream_flag_opened) == e_stream_flag_opened) {
switch (whence) {
case e_stream_seek_begin:
whence_local = SEEK_SET;
break;
case e_stream_seek_current:
whence_local = SEEK_CUR;
break;
case e_stream_seek_end:
whence_local = SEEK_END;
break;
default:
d_throw(v_exception_malformed, "malformed whence format exception");
}
moved_local = lseek(stream_attributes->descriptor, offset, whence_local);
if (moved)
*moved = moved_local;
} else
d_throw(v_exception_closed, "read in a closed stream exception");
return self;
}
d_define_method(fonts, add_font)(struct s_object *self, unsigned int id, struct s_object *stream, int size) {
d_using(fonts);
struct s_stream_attributes *stream_attributes = d_cast(stream, stream);
char buffer[d_string_buffer_size];
SDL_RWops *font_block;
if (fonts_attributes->fonts[id].font) {
TTF_CloseFont(fonts_attributes->fonts[id].font);
munmap(fonts_attributes->fonts[id].font_block, fonts_attributes->fonts[id].file_stats.st_size);
}
fstat(stream_attributes->descriptor, &(fonts_attributes->fonts[id].file_stats));
if ((fonts_attributes->fonts[id].font_block = mmap(NULL, fonts_attributes->fonts[id].file_stats.st_size, PROT_READ, MAP_SHARED,
stream_attributes->descriptor, 0)) != MAP_FAILED) {
font_block = SDL_RWFromMem(fonts_attributes->fonts[id].font_block, fonts_attributes->fonts[id].file_stats.st_size);
if (!(fonts_attributes->fonts[id].font = TTF_OpenFontRW(font_block, d_true, size))) {
munmap(fonts_attributes->fonts[id].font_block, fonts_attributes->fonts[id].file_stats.st_size);
snprintf(buffer, d_string_buffer_size, "ungenerable TTF for font %s exception",
d_string_cstring(stream_attributes->string_name));
d_throw(v_exception_ttf, buffer);
}
} else {
snprintf(buffer, d_string_buffer_size, "wrong type for file %s exception", d_string_cstring(stream_attributes->string_name));
d_throw(v_exception_wrong_type, buffer);
}
return self;
}
struct s_object *f_track_new_channel(struct s_object *self, struct s_object *stream, int channel) {
struct s_track_attributes *attributes = p_track_alloc(self);
struct s_stream_attributes *stream_attributes = d_cast(stream, stream);
char *memblock, buffer[d_string_buffer_size];
struct stat file_stats;
SDL_RWops *tracked_block;
if (attributes->chunk)
Mix_FreeChunk(attributes->chunk);
fstat(stream_attributes->descriptor, &file_stats);
if ((memblock = mmap(NULL, file_stats.st_size, PROT_READ, MAP_SHARED, stream_attributes->descriptor, 0)) != MAP_FAILED) {
tracked_block = SDL_RWFromMem(memblock, file_stats.st_size);
if ((attributes->chunk = Mix_LoadWAV_RW(tracked_block, d_true))) {
if ((attributes->channel = channel) == d_track_auto_channel)
attributes->auto_channel = d_true;
attributes->next_channel = channel;
attributes->volume = d_track_default_volume;
} else {
snprintf(buffer, d_string_buffer_size, "unable to retrieve information for track %s exception", d_string_cstring(stream_attributes->string_name));
d_throw(v_exception_chunk, buffer);
}
munmap(memblock, file_stats.st_size);
} else {
snprintf(buffer, d_string_buffer_size, "wrong type for file %s exception", d_string_cstring(stream_attributes->string_name));
d_throw(v_exception_wrong_type, buffer);
}
return self;
}
struct s_object *f_stream_new_file(struct s_object *self, struct s_object *string_name, const char *action, int permission) {
struct s_stream_attributes *attributes = p_stream_alloc(self);
char buffer[d_string_buffer_size];
attributes->string_name = d_retain(string_name);
attributes->parameters = -1;
switch(action[0]) {
case 'r':
case 'R':
attributes->parameters = d_stream_flag_read;
if ((action[1] == 'w') || (action[1] == 'W'))
attributes->parameters = d_stream_flag_write_read;
break;
case 'w':
case 'W':
attributes->parameters = d_stream_flag_truncate;
if ((action[1] == 'a') || (action[1] == 'A'))
attributes->parameters = d_stream_flag_append;
}
if (attributes->parameters != -1) {
if ((attributes->descriptor = open(d_string_cstring(attributes->string_name), attributes->parameters, permission)) > -1)
attributes->flags = e_stream_flag_opened;
else {
snprintf(buffer, d_string_buffer_size, "unreachable file %s exception", d_string_cstring(attributes->string_name));
d_throw(v_exception_unreachable, buffer);
}
} else
d_throw(v_exception_malformed, "malformed action format");
return self;
}
d_define_method(label, update_texture)(struct s_object *self, TTF_Font *font, struct s_object *environment) {
d_using(label);
char buffer[d_string_buffer_size];
int width, height;
struct s_drawable_attributes *drawable_attributes = d_cast(self, drawable);
struct s_uiable_attributes *uiable_attributes = d_cast(self, uiable);
struct s_environment_attributes *environment_attributes = d_cast(environment, environment);
TTF_Font *current_font;
SDL_Surface *unoptimized_surface;
SDL_Color white = {
255,
255,
255,
255
};
if (label_attributes->image) {
SDL_DestroyTexture(label_attributes->image);
label_attributes->image = NULL;
}
if ((current_font = font) || (current_font = label_attributes->last_font)) {
label_attributes->last_font = current_font;
if (f_string_strlen(label_attributes->string_content) > 0) {
if ((unoptimized_surface = TTF_RenderText_Blended(current_font, label_attributes->string_content, white))) {
label_attributes->image = SDL_CreateTextureFromSurface(environment_attributes->renderer, unoptimized_surface);
if (SDL_QueryTexture(label_attributes->image, NULL, NULL, &width, &height) == 0) {
label_attributes->string_width = width;
label_attributes->string_height = height;
if (label_attributes->format == e_label_background_format_adaptable) {
label_attributes->last_width = width + (uiable_attributes->border_w * 2.0);
label_attributes->last_height = height + (uiable_attributes->border_h * 2.0);
}
d_call(&(drawable_attributes->point_dimension), m_point_set_x, (double)label_attributes->last_width);
d_call(&(drawable_attributes->point_dimension), m_point_set_y, (double)label_attributes->last_height);
if (label_attributes->last_blend != e_drawable_blend_undefined)
d_call(self, m_drawable_set_blend, label_attributes->last_blend);
d_call(self, m_drawable_set_maskRGB, (unsigned int)label_attributes->last_mask_R, (unsigned int)label_attributes->last_mask_G,
(unsigned int)label_attributes->last_mask_B);
d_call(self, m_drawable_set_maskA, (unsigned int)label_attributes->last_mask_A);
} else {
snprintf(buffer, d_string_buffer_size, "unable to retrieve informations for label \"%s\" exception",
label_attributes->string_content);
d_throw(v_exception_texture, buffer);
}
SDL_FreeSurface(unoptimized_surface);
} else {
snprintf(buffer, d_string_buffer_size, "ungenerable texture for label \"%s\" exception",
label_attributes->string_content);
d_throw(v_exception_texture, buffer);
}
}
} else {
snprintf(buffer, d_string_buffer_size, "ungenerable texture for label \"%s\" with missing font exception", label_attributes->string_content);
d_throw(v_exception_texture, buffer);
}
d_call(self, m_emitter_raise, v_uiable_signals[e_uiable_signal_content_changed]);
return self;
}
d_define_method(stream, read)(struct s_object *self, unsigned char *buffer, size_t size, size_t *readed) {
d_using(stream);
size_t readed_local;
if ((stream_attributes->flags&e_stream_flag_opened) == e_stream_flag_opened) {
if (((stream_attributes->parameters&O_RDWR) == O_RDWR) || ((stream_attributes->parameters&O_RDONLY) == O_RDONLY)) {
readed_local = read(stream_attributes->descriptor, buffer, size);
if (readed)
*readed = readed_local;
} else
d_throw(v_exception_unsupported, "read in a write-only stream exception");
} else
d_throw(v_exception_closed, "read in a closed stream exception");
return self;
}
d_define_method(stream, write)(struct s_object *self, unsigned char *raw, size_t size, size_t *written) {
d_using(stream);
size_t written_local;
if ((stream_attributes->flags&e_stream_flag_opened) == e_stream_flag_opened) {
if (((stream_attributes->parameters&O_RDWR) == O_RDWR) || ((stream_attributes->parameters&O_WRONLY) == O_WRONLY)) {
written_local = write(stream_attributes->descriptor, raw, size);
if (written)
*written = written_local;
} else
d_throw(v_exception_unsupported, "write in a read-only stream exception");
} else
d_throw(v_exception_closed, "write in a closed stream exception");
return self;
}
void p_dictionary_delete(struct o_object *object) {
struct o_dictionary *local_object;
struct o_array *keys;
struct o_object *key;
struct s_hash_bucket current;
size_t index;
if ((local_object = d_object_kind(object, dictionary))) {
if ((keys = local_object->m_keys(local_object))) {
for (index = 0; index < keys->size; index++)
if ((key = keys->m_get(keys, index))) {
f_hash_delete(local_object->table, key, ¤t);
if (current.kind != e_hash_kind_empty) {
if (current.key)
d_release(current.key);
if (current.value)
d_release(current.value);
memset(¤t, 0, sizeof(struct s_hash_bucket));
}
}
d_release(keys);
}
f_hash_destroy(&(local_object->table));
} else
d_throw(v_exception_kind, "object is not an instance of o_dictionary");
}
d_define_method(stream, size)(struct s_object *self, size_t *size) {
d_using(stream);
off_t offset, current_offset;
if ((stream_attributes->flags&e_stream_flag_opened) == e_stream_flag_opened) {
if (((stream_attributes->parameters&O_RDWR) == O_RDWR) || ((stream_attributes->parameters&O_RDONLY) == O_RDONLY)) {
d_call(self, m_stream_seek, 0, e_stream_seek_current, ¤t_offset);
d_call(self, m_stream_seek, 0, e_stream_seek_begin, NULL);
d_call(self, m_stream_seek, 0, e_stream_seek_end, &offset);
if (size)
*size = (size_t)offset;
d_call(self, m_stream_seek, current_offset, e_stream_seek_begin);
} else
d_throw(v_exception_unsupported, "read in a write-only stream exception");
} else
d_throw(v_exception_closed, "read in a closed stream exception");
return self;
}
d_define_method(label, set_content)(struct s_object *self, struct s_object *string_content, TTF_Font *font, struct s_object *environment) {
d_using(label);
struct s_drawable_attributes *drawable_attributes = d_cast(self, drawable);
struct s_environment_attributes *environment_attributes = d_cast(environment, environment);
char buffer[d_string_buffer_size];
int width, height;
SDL_Surface *unoptimized_surface;
SDL_Color white = {
255,
255,
255,
255
};
if (label_attributes->string_content)
d_delete(label_attributes->string_content);
label_attributes->string_content = d_retain(string_content);
if (label_attributes->image)
SDL_DestroyTexture(label_attributes->image);
if ((unoptimized_surface = TTF_RenderText_Blended(font, d_string_cstring(string_content), white))) {
label_attributes->image = SDL_CreateTextureFromSurface(environment_attributes->renderer, unoptimized_surface);
if (SDL_QueryTexture(label_attributes->image, NULL, NULL, &width, &height) == 0) {
d_call(&(drawable_attributes->point_dimension), m_point_set_x, (double)width);
d_call(&(drawable_attributes->point_dimension), m_point_set_y, (double)height);
d_call(&(drawable_attributes->point_center), m_point_set_x, (double)(width/2.0));
d_call(&(drawable_attributes->point_center), m_point_set_y, (double)(height/2.0));
if (label_attributes->last_blend != e_drawable_blend_undefined)
d_call(self, m_drawable_set_blend, label_attributes->last_blend);
d_call(self, m_drawable_set_maskRGB, (unsigned int)label_attributes->last_mask_R,
(unsigned int)label_attributes->last_mask_G, (unsigned int)label_attributes->last_mask_B);
d_call(self, m_drawable_set_maskA, (unsigned int)label_attributes->last_mask_A);
} else {
snprintf(buffer, d_string_buffer_size, "unable to retrieve informations for label \"%s\" exception",
d_string_cstring(string_content));
d_throw(v_exception_texture, buffer);
}
SDL_FreeSurface(unoptimized_surface);
} else {
snprintf(buffer, d_string_buffer_size, "ungenerable texture for label \"%s\" exception", d_string_cstring(string_content));
d_throw(v_exception_texture, buffer);
}
return self;
}
struct s_object *f_bitmap_new(struct s_object *self, struct s_object *stream, struct s_object *environment) {
struct s_bitmap_attributes *attributes = p_bitmap_alloc(self);
struct s_drawable_attributes *drawable_attributes = d_cast(self, drawable);
struct s_stream_attributes *stream_attributes = d_cast(stream, stream);
struct s_environment_attributes *environment_attributes = d_cast(environment, environment);
char *memblock, buffer[d_string_buffer_size];
struct stat file_stats;
int width, height;
SDL_RWops *surfaced_block;
SDL_Surface *unoptimized_surface;
fstat(stream_attributes->descriptor, &file_stats);
if ((memblock = mmap(NULL, file_stats.st_size, PROT_READ, MAP_SHARED, stream_attributes->descriptor, 0)) != MAP_FAILED) {
surfaced_block = SDL_RWFromMem(memblock, file_stats.st_size);
if ((unoptimized_surface = IMG_Load_RW(surfaced_block, d_true))) {
attributes->image = SDL_CreateTextureFromSurface(environment_attributes->renderer, unoptimized_surface);
if (SDL_QueryTexture(attributes->image, NULL, NULL, &width, &height) == 0) {
d_call(&(drawable_attributes->point_dimension), m_point_set_x, (double)width);
d_call(&(drawable_attributes->point_dimension), m_point_set_y, (double)height);
d_call(&(drawable_attributes->point_center), m_point_set_x, (double)(width/2.0));
d_call(&(drawable_attributes->point_center), m_point_set_y, (double)(height/2.0));
} else {
snprintf(buffer, d_string_buffer_size, "unable to retrieve informations for bitmap %s exception",
d_string_cstring(stream_attributes->string_name));
d_throw(v_exception_texture, buffer);
}
} else {
snprintf(buffer, d_string_buffer_size, "ungenerable texture for bitmap %s exception",
d_string_cstring(stream_attributes->string_name));
d_throw(v_exception_texture, buffer);
}
SDL_FreeSurface(unoptimized_surface);
munmap(memblock, file_stats.st_size);
} else {
snprintf(buffer, d_string_buffer_size, "wrong type for file %s exception", d_string_cstring(stream_attributes->string_name));
d_throw(v_exception_wrong_type, buffer);
}
return self;
}
const struct s_method *p_object_recall(const char *file, int line, struct s_object *object, const char *symbol, const char *type) {
struct s_virtual_table *singleton;
char buffer[d_string_buffer_size];
struct s_method_cache swap_cache;
const struct s_method *result = NULL;
int index;
if ((object->cache_calls.first.type == type) && (object->cache_calls.first.entry->symbol == symbol))
result = object->cache_calls.first.entry;
else if ((object->cache_calls.second.type == type) && (object->cache_calls.second.entry->symbol == symbol)) {
swap_cache = object->cache_calls.first;
object->cache_calls.first = object->cache_calls.second;
object->cache_calls.second = swap_cache;
result = object->cache_calls.first.entry;
} else {
d_reverse_foreach(&(object->virtual_tables), singleton, struct s_virtual_table) {
if ((type == v_undefined_type) || (type == singleton->type))
for (index = 0; singleton->virtual_table[index].symbol; ++index)
if (singleton->virtual_table[index].symbol == symbol) {
object->cache_calls.second = object->cache_calls.first;
object->cache_calls.first.type = type;
object->cache_calls.first.entry = &(singleton->virtual_table[index]);
result = object->cache_calls.first.entry;
}
if (result)
break;
}
}
if (result) {
if ((result->flag == e_flag_private) && (result->file != file)) {
snprintf(buffer, d_string_buffer_size, "method '%s' is private and you are out of context (%s, %d)", symbol, file, line);
d_throw(v_exception_private_method, buffer);
}
} else {
snprintf(buffer, d_string_buffer_size, "symbol '%s' is undefined or it is a member of another class (%s, %d)", symbol, file, line);
d_throw(v_exception_undefined_method, buffer);
}
return result;
}
struct s_object *f_stream_new_temporary(struct s_object *self, struct s_object *string_name) {
struct s_stream_attributes *attributes = p_stream_alloc(self);
char file_name[] = "magrathea_XXXXXX.tmp";
attributes->string_name = d_retain(string_name);
attributes->parameters = d_stream_flag_write_read;
/* (from man): [...] the last six characters of template must be "XXXXXX" and these are replaced with a string that makes the filename unique.
* Since it will be modified, template must not be a string constant, but should be declared as a character array.
*/
if ((attributes->descriptor = mkstemp(file_name)) >= 0)
attributes->flags = (e_stream_flag_temporary|e_stream_flag_opened);
else
d_throw(v_exception_unreachable, "unreachable temporary file exception");
return self;
}
d_define_method(stream, read_string)(struct s_object *self, struct s_object *string_supplied, size_t size) {
d_using(stream);
struct s_string_attributes *string_attributes = NULL;
char character, buffer[d_stream_block_size];
size_t readed_local = 0;
int tail = d_true;
if ((stream_attributes->flags&e_stream_flag_opened) == e_stream_flag_opened) {
if (((stream_attributes->parameters&O_RDWR) == O_RDWR) || ((stream_attributes->parameters&O_RDONLY) == O_RDONLY)) {
while ((readed_local < size) && (read(stream_attributes->descriptor, &character, 1) > 0)) {
tail = d_false;
if ((character != '\n') && (character != '\0'))
buffer[readed_local++] = character;
else
break;
}
if (!tail) {
buffer[readed_local] = '\0';
if (!string_supplied) {
string_supplied = f_string_new_size(d_new(string), buffer, (readed_local + 1));
} else {
string_attributes = d_cast(string_supplied, string);
if (string_attributes->size < (readed_local + 1)) {
string_attributes->content = d_realloc(string_attributes->content, (readed_local + 1));
string_attributes->length = (readed_local + 1);
}
strncpy(string_attributes->content, buffer, readed_local);
string_attributes->content[readed_local] = '\0';
string_attributes->length = readed_local;
}
} else
string_supplied = NULL;
} else
d_throw(v_exception_unsupported, "read in a write-only stream exception");
} else
d_throw(v_exception_closed, "read in a closed stream exception");
return string_supplied;
}
d_define_method(stream, lock)(struct s_object *self, int lock) {
d_using(stream);
int flags;
if ((stream_attributes->flags&e_stream_flag_opened) == e_stream_flag_opened) {
flags = fcntl(stream_attributes->descriptor, F_GETFL);
if (lock)
flags &= ~O_NONBLOCK;
else
flags |= O_NONBLOCK;
if (stream_attributes->parameters != flags)
if (fcntl(stream_attributes->descriptor, F_SETFL, flags) != -1)
stream_attributes->parameters = flags;
} else
d_throw(v_exception_closed, "read in a closed stream exception");
return self;
}
char *p_dictionary_string(struct o_object *object, char *data, size_t size) {
struct o_dictionary *local_object;
struct o_array *keys;
struct o_object *key, *value;
char *pointer = data, *next;
size_t index, written = 0;
if ((local_object = d_object_kind(object, dictionary))) {
if (written < size) {
*pointer = '{';
if ((++written) < size)
pointer++;
}
if ((keys = local_object->m_keys(local_object))) {
for (index = 0; index < keys->size; index++)
if ((key = keys->m_get(keys, index))) {
next = key->s_delegate.m_string(key, pointer, (size-written));
written += (next-pointer);
pointer = next;
if (written < size) {
*pointer = ':';
if ((++written) < size) {
pointer++;
if ((value = f_hash_get(local_object->table, key))) {
next = value->s_delegate.m_string(value, pointer, (size-written));
written += (next-pointer);
pointer = next;
if (written < size) {
*pointer = ',';
if ((++written) < size)
pointer++;
}
}
}
}
}
d_release(keys);
}
if (written < size) {
*pointer = '}';
if ((++written) < size)
pointer++;
}
*pointer = '\0';
} else
d_throw(v_exception_kind, "object is not an instance of o_dictionary");
return pointer;
}
struct o_object *p_dictionary_clone(struct o_object *object) {
struct o_dictionary *result = NULL, *local_object;
struct o_array *keys;
struct o_object *key;
size_t index;
if ((local_object = d_object_kind(object, dictionary))) {
result = (struct o_dictionary *)p_object_clone(object);
result->table = NULL;
f_hash_init(&(result->table), p_dictionary_compare_hooker, p_dictionary_hash_hooker);
if ((keys = local_object->m_keys(local_object))) {
for (index = 0; index < keys->size; index++) {
key = keys->m_get(keys, index);
result->m_insert(result, key, f_hash_get(local_object->table, key));
}
d_release(keys);
}
} else
d_throw(v_exception_kind, "object is not an instance of o_dictionary");
return (o_object *)result;
}
void check (int l, int r) {
if (r < l)
d_throw(v_exception_range, "wrong range specified");
}
