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RetroArch/tasks/task_file_transfer.c

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/* RetroArch - A frontend for libretro.
* Copyright (C) 2011-2016 - Daniel De Matteis
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include <string.h>
#include <errno.h>
#include <file/nbio.h>
#include <formats/image.h>
#include <formats/rpng.h>
#include <compat/strl.h>
#include <retro_assert.h>
#include <retro_miscellaneous.h>
#include <queues/message_queue.h>
#include <string/string_list.h>
#include <rhash.h>
#include "tasks.h"
#include "../verbosity.h"
#define CB_MENU_WALLPAPER 0xb476e505U
#define CB_MENU_BOXART 0x68b307cdU
enum nbio_image_status_enum
{
NBIO_IMAGE_STATUS_POLL = 0,
NBIO_IMAGE_STATUS_TRANSFER,
NBIO_IMAGE_STATUS_TRANSFER_PARSE,
NBIO_IMAGE_STATUS_PROCESS_TRANSFER,
NBIO_IMAGE_STATUS_PROCESS_TRANSFER_PARSE,
NBIO_IMAGE_STATUS_TRANSFER_PARSE_FREE
};
enum nbio_status_enum
{
NBIO_STATUS_POLL = 0,
NBIO_STATUS_TRANSFER,
NBIO_STATUS_TRANSFER_PARSE,
NBIO_STATUS_TRANSFER_PARSE_FREE
};
typedef struct nbio_image_handle
{
struct texture_image ti;
bool is_blocking;
bool is_blocking_on_processing;
bool is_finished;
transfer_cb_t cb;
#ifdef HAVE_RPNG
rpng_t *handle;
#endif
unsigned processing_pos_increment;
unsigned pos_increment;
uint64_t frame_count;
int processing_final_state;
unsigned status;
} nbio_image_handle_t;
typedef struct nbio_handle
{
nbio_image_handle_t image;
bool is_finished;
transfer_cb_t cb;
struct nbio_t *handle;
unsigned pos_increment;
uint64_t frame_count;
msg_queue_t *msg_queue;
unsigned status;
} nbio_handle_t;
#ifdef HAVE_MENU
#include "../menu/menu_driver.h"
#ifdef HAVE_RPNG
static void rarch_task_file_load_handler(rarch_task_t *task);
static int cb_image_menu_upload_generic(void *data, size_t len)
{
nbio_handle_t *nbio = (nbio_handle_t*)data;
unsigned r_shift, g_shift, b_shift, a_shift;
if (!nbio)
return -1;
if (nbio->image.processing_final_state == IMAGE_PROCESS_ERROR ||
nbio->image.processing_final_state == IMAGE_PROCESS_ERROR_END)
return -1;
texture_image_set_color_shifts(&r_shift, &g_shift, &b_shift,
&a_shift);
texture_image_color_convert(r_shift, g_shift, b_shift,
a_shift, &nbio->image.ti);
nbio->image.is_blocking_on_processing = false;
nbio->image.is_blocking = true;
nbio->image.is_finished = true;
nbio->is_finished = true;
return 0;
}
static int cb_image_menu_generic(nbio_handle_t *nbio)
{
unsigned width = 0, height = 0;
int retval;
if (!nbio)
return -1;
if (!rpng_is_valid(nbio->image.handle))
return -1;
retval = rpng_nbio_load_image_argb_process(nbio->image.handle,
&nbio->image.ti.pixels, &width, &height);
nbio->image.ti.width = width;
nbio->image.ti.height = height;
if (retval == IMAGE_PROCESS_ERROR || retval == IMAGE_PROCESS_ERROR_END)
return -1;
nbio->image.is_blocking_on_processing = true;
nbio->image.is_finished = false;
return 0;
}
static int cb_image_menu_wallpaper(void *data, size_t len)
{
nbio_handle_t *nbio = (nbio_handle_t*)data;
if (cb_image_menu_generic(nbio) != 0)
return -1;
nbio->image.cb = &cb_image_menu_upload_generic;
return 0;
}
static int cb_image_menu_boxart(void *data, size_t len)
{
nbio_handle_t *nbio = (nbio_handle_t*)data;
if (cb_image_menu_generic(nbio) != 0)
return -1;
nbio->image.cb = &cb_image_menu_upload_generic;
return 0;
}
static int rarch_main_data_image_iterate_transfer(nbio_handle_t *nbio)
{
unsigned i;
if (!nbio)
return -1;
if (nbio->image.is_finished)
return 0;
for (i = 0; i < nbio->image.pos_increment; i++)
{
if (!rpng_nbio_load_image_argb_iterate(nbio->image.handle))
goto error;
}
nbio->image.frame_count++;
return 0;
error:
return -1;
}
static int rarch_main_data_image_iterate_process_transfer(nbio_handle_t *nbio)
{
unsigned i, width = 0, height = 0;
int retval = 0;
if (!nbio)
return -1;
for (i = 0; i < nbio->image.processing_pos_increment; i++)
{
retval = rpng_nbio_load_image_argb_process(nbio->image.handle,
&nbio->image.ti.pixels, &width, &height);
nbio->image.ti.width = width;
nbio->image.ti.height = height;
if (retval != IMAGE_PROCESS_NEXT)
break;
}
if (retval == IMAGE_PROCESS_NEXT)
return 0;
nbio->image.processing_final_state = retval;
return -1;
}
static int rarch_main_data_image_iterate_process_transfer_parse(nbio_handle_t *nbio)
{
if (nbio->image.handle && nbio->image.cb)
{
size_t len = 0;
nbio->image.cb(nbio, len);
}
return 0;
}
static int rarch_main_data_image_iterate_transfer_parse(nbio_handle_t *nbio)
{
if (nbio->image.handle && nbio->image.cb)
{
size_t len = 0;
nbio->image.cb(nbio, len);
}
return 0;
}
static int cb_nbio_default(void *data, size_t len)
{
nbio_handle_t *nbio = (nbio_handle_t*)data;
if (!data)
return -1;
(void)len;
nbio->is_finished = true;
return 0;
}
static int cb_nbio_generic(nbio_handle_t *nbio, size_t *len)
{
void *ptr = NULL;
if (!nbio->image.handle)
{
nbio->image.cb = NULL;
return -1;
}
ptr = nbio_get_ptr(nbio->handle, len);
if (!ptr)
{
rpng_nbio_load_image_free(nbio->image.handle);
nbio->image.handle = NULL;
nbio->image.cb = NULL;
return -1;
}
rpng_set_buf_ptr(nbio->image.handle, (uint8_t*)ptr);
nbio->image.pos_increment = (*len / 2) ? (*len / 2) : 1;
nbio->image.processing_pos_increment = (*len / 4) ? (*len / 4) : 1;
if (!rpng_nbio_load_image_argb_start(nbio->image.handle))
{
rpng_nbio_load_image_free(nbio->image.handle);
return -1;
}
nbio->image.is_blocking = false;
nbio->image.is_finished = false;
nbio->is_finished = true;
return 0;
}
static int cb_nbio_image_menu_wallpaper(void *data, size_t len)
{
nbio_handle_t *nbio = (nbio_handle_t*)data;
if (!nbio || !data)
return -1;
nbio->image.handle = rpng_alloc();
nbio->image.cb = &cb_image_menu_wallpaper;
return cb_nbio_generic(nbio, &len);
}
static int cb_nbio_image_menu_boxart(void *data, size_t len)
{
nbio_handle_t *nbio = (nbio_handle_t*)data;
if (!nbio || !data)
return -1;
nbio->image.handle = rpng_alloc();
nbio->image.cb = &cb_image_menu_boxart;
return cb_nbio_generic(nbio, &len);
}
#endif
#endif
bool rarch_task_push_image_load(const char *fullpath, const char *type, rarch_task_callback_t cb, void *user_data)
{
#if defined(HAVE_RPNG) && defined(HAVE_MENU)
rarch_task_t *t;
nbio_handle_t *nbio;
uint32_t cb_type_hash = 0;
struct nbio_t* handle = NULL;
cb_type_hash = djb2_calculate(type);
handle = nbio_open(fullpath, NBIO_READ);
if (!handle)
{
RARCH_ERR("[image load] Failed to open '%s': %s.\n", fullpath, strerror(errno));
return false;
}
nbio = (nbio_handle_t*)calloc(1, sizeof(*nbio));
if (!nbio)
return false;
nbio->handle = handle;
nbio->is_finished = false;
nbio->cb = &cb_nbio_default;
nbio->status = NBIO_STATUS_TRANSFER;
nbio->image.status = NBIO_IMAGE_STATUS_TRANSFER;
if (cb_type_hash == CB_MENU_WALLPAPER)
nbio->cb = &cb_nbio_image_menu_wallpaper;
else if (cb_type_hash == CB_MENU_BOXART)
nbio->cb = &cb_nbio_image_menu_boxart;
nbio_begin_read(handle);
t = (rarch_task_t*)calloc(1, sizeof(*t));
if (!t)
{
free(nbio);
return false;
}
t->state = nbio;
t->handler = rarch_task_file_load_handler;
t->callback = cb;
t->user_data = user_data;
rarch_task_push(t);
#endif
return true;
}
/* guarded for rpng/menu use but good for generic use */
#if defined(HAVE_RPNG) && defined(HAVE_MENU)
static int rarch_main_data_nbio_iterate_transfer(nbio_handle_t *nbio)
{
size_t i;
if (!nbio)
return -1;
nbio->pos_increment = 5;
if (nbio->is_finished)
return 0;
for (i = 0; i < nbio->pos_increment; i++)
{
if (nbio_iterate(nbio->handle))
return -1;
}
nbio->frame_count++;
return 0;
}
static int rarch_main_data_nbio_iterate_parse(nbio_handle_t *nbio)
{
if (!nbio)
return -1;
if (nbio->cb)
{
int len = 0;
nbio->cb(nbio, len);
}
return 0;
}
static void rarch_task_file_load_handler(rarch_task_t *task)
{
nbio_handle_t *nbio = (nbio_handle_t*)task->state;
nbio_image_handle_t *image = nbio ? &nbio->image : NULL;
switch (nbio->status)
{
case NBIO_STATUS_TRANSFER_PARSE:
rarch_main_data_nbio_iterate_parse(nbio);
nbio->status = NBIO_STATUS_TRANSFER_PARSE_FREE;
break;
case NBIO_STATUS_TRANSFER:
if (rarch_main_data_nbio_iterate_transfer(nbio) == -1)
nbio->status = NBIO_STATUS_TRANSFER_PARSE;
break;
case NBIO_STATUS_TRANSFER_PARSE_FREE:
case NBIO_STATUS_POLL:
default:
break;
}
if (nbio->image.handle)
{
switch (image->status)
{
case NBIO_IMAGE_STATUS_PROCESS_TRANSFER:
if (rarch_main_data_image_iterate_process_transfer(nbio) == -1)
image->status = NBIO_IMAGE_STATUS_PROCESS_TRANSFER_PARSE;
break;
case NBIO_IMAGE_STATUS_TRANSFER_PARSE:
rarch_main_data_image_iterate_transfer_parse(nbio);
if (image->is_blocking_on_processing)
image->status = NBIO_IMAGE_STATUS_PROCESS_TRANSFER;
break;
case NBIO_IMAGE_STATUS_TRANSFER:
if (!image->is_blocking)
if (rarch_main_data_image_iterate_transfer(nbio) == -1)
image->status = NBIO_IMAGE_STATUS_TRANSFER_PARSE;
break;
case NBIO_IMAGE_STATUS_PROCESS_TRANSFER_PARSE:
rarch_main_data_image_iterate_process_transfer_parse(nbio);
if (!image->is_finished)
break;
case NBIO_IMAGE_STATUS_TRANSFER_PARSE_FREE:
case NBIO_IMAGE_STATUS_POLL:
default:
break;
}
if (nbio->is_finished && nbio->image.is_finished && !task->cancelled)
{
task->task_data = malloc(sizeof(nbio->image.ti));
memcpy(task->task_data, &nbio->image.ti, sizeof(nbio->image.ti));
goto task_finished;
}
} else
if (nbio->is_finished)
goto task_finished;
if (task->cancelled)
{
task->error = strdup("Task canceled.");
goto task_finished;
}
return;
task_finished:
task->finished = true;
if (image->handle)
{
rpng_nbio_load_image_free(image->handle);
image->handle = NULL;
image->frame_count = 0;
}
nbio_free(nbio->handle);
nbio->handle = NULL;
nbio->is_finished = false;
nbio->frame_count = 0;
free(nbio);
}
#endif
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