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RetroArch/input/input_overlay.c
twinaphex 875023468a Some more MISSING_DECLS buildfixes
2015-09-06 14:59:20 +02:00

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/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2015 - 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 <stdlib.h>
#include <stddef.h>
#include <string.h>
#include <math.h>
#include <compat/posix_string.h>
#include <file/file_path.h>
#include <retro_assert.h>
#include <string/string_list.h>
#include <file/config_file.h>
#include <formats/image.h>
#include <clamping.h>
#include <rhash.h>
#include "input_overlay.h"
#include "../configuration.h"
#include "input_common.h"
#define BOX_RADIAL 0x18df06d2U
#define BOX_RECT 0x7c9d4d93U
#define KEY_ANALOG_LEFT 0x56b92e81U
#define KEY_ANALOG_RIGHT 0x2e4dc654U
struct overlay
{
struct overlay_desc *descs;
size_t size;
size_t pos;
unsigned pos_increment;
struct texture_image image;
bool block_scale;
float mod_x, mod_y, mod_w, mod_h;
float x, y, w, h;
float scale;
float center_x, center_y;
bool full_screen;
char name[64];
struct
{
struct
{
char key[64];
char path[PATH_MAX_LENGTH];
} paths;
struct
{
char key[64];
} names;
struct
{
char array[256];
char key[64];
} rect;
struct
{
char key[64];
unsigned size;
} descs;
bool normalized;
float alpha_mod;
float range_mod;
} config;
struct texture_image *load_images;
unsigned load_images_size;
};
struct overlay_desc
{
float x;
float y;
enum overlay_hitbox hitbox;
float range_x, range_y;
float range_x_mod, range_y_mod;
float mod_x, mod_y, mod_w, mod_h;
float delta_x, delta_y;
enum overlay_type type;
uint64_t key_mask;
float analog_saturate_pct;
unsigned next_index;
char next_index_name[64];
struct texture_image image;
unsigned image_index;
float alpha_mod;
float range_mod;
bool updated;
bool movable;
};
struct input_overlay
{
void *iface_data;
const video_overlay_interface_t *iface;
bool enable;
enum overlay_image_transfer_status loading_status;
bool blocked;
bool alive;
struct overlay *overlays;
const struct overlay *active;
size_t index;
size_t size;
unsigned pos;
size_t resolve_pos;
size_t pos_increment;
unsigned next_index;
char *overlay_path;
enum overlay_status state;
struct
{
struct
{
unsigned size;
} overlays;
} config;
struct
{
bool enable;
float opacity;
float scale_factor;
} deferred;
};
typedef struct input_overlay_state
{
/* This is a bitmask of (1 << key_bind_id). */
uint64_t buttons;
/* Left X, Left Y, Right X, Right Y */
int16_t analog[4];
uint32_t keys[RETROK_LAST / 32 + 1];
} input_overlay_state_t;
static input_overlay_t *overlay_ptr;
static input_overlay_state_t overlay_st_ptr;
static input_overlay_state_t *input_overlay_get_state_ptr(void)
{
return &overlay_st_ptr;
}
bool input_overlay_data_is_active(void)
{
input_overlay_t *overlay = overlay_ptr;
if (!overlay)
return false;
if (overlay->alive)
return false;
return true;
}
/**
* input_overlay_scale:
* @ol : Overlay handle.
* @scale : Scaling factor.
*
* Scales overlay and all its associated descriptors
* by a given scaling factor (@scale).
**/
static void input_overlay_scale(struct overlay *ol, float scale)
{
size_t i;
if (!ol)
return;
if (ol->block_scale)
scale = 1.0f;
ol->scale = scale;
ol->mod_w = ol->w * scale;
ol->mod_h = ol->h * scale;
ol->mod_x = ol->center_x +
(ol->x - ol->center_x) * scale;
ol->mod_y = ol->center_y +
(ol->y - ol->center_y) * scale;
for (i = 0; i < ol->size; i++)
{
float scale_w, scale_h, adj_center_x, adj_center_y;
struct overlay_desc *desc = &ol->descs[i];
if (!desc)
continue;
scale_w = ol->mod_w * desc->range_x;
scale_h = ol->mod_h * desc->range_y;
desc->mod_w = 2.0f * scale_w;
desc->mod_h = 2.0f * scale_h;
adj_center_x = ol->mod_x + desc->x * ol->mod_w;
adj_center_y = ol->mod_y + desc->y * ol->mod_h;
desc->mod_x = adj_center_x - scale_w;
desc->mod_y = adj_center_y - scale_h;
}
}
static void input_overlay_set_vertex_geom(void)
{
size_t i;
input_overlay_t *ol = overlay_ptr;
if (!ol)
return;
if (ol->active->image.pixels)
ol->iface->vertex_geom(ol->iface_data, 0,
ol->active->mod_x, ol->active->mod_y,
ol->active->mod_w, ol->active->mod_h);
for (i = 0; i < ol->active->size; i++)
{
struct overlay_desc *desc = &ol->active->descs[i];
if (!desc)
continue;
if (!desc->image.pixels)
continue;
if (ol->iface && ol->iface->vertex_geom)
ol->iface->vertex_geom(ol->iface_data, desc->image_index,
desc->mod_x, desc->mod_y, desc->mod_w, desc->mod_h);
}
}
/**
* input_overlay_set_scale_factor:
* @ol : Overlay handle.
* @scale : Factor of scale to apply.
*
* Scales the overlay by a factor of scale.
**/
void input_overlay_set_scale_factor(float scale)
{
size_t i;
input_overlay_t *ol = overlay_ptr;
if (!ol)
return;
for (i = 0; i < ol->size; i++)
input_overlay_scale(&ol->overlays[i], scale);
input_overlay_set_vertex_geom();
}
static void input_overlay_free_overlay(struct overlay *overlay)
{
size_t i;
if (!overlay)
return;
for (i = 0; i < overlay->size; i++)
texture_image_free(&overlay->descs[i].image);
if (overlay->load_images)
free(overlay->load_images);
overlay->load_images = NULL;
if (overlay->descs)
free(overlay->descs);
overlay->descs = NULL;
texture_image_free(&overlay->image);
}
static void input_overlay_free_overlays(void)
{
size_t i;
input_overlay_t *ol = overlay_ptr;
if (!ol)
return;
for (i = 0; i < ol->size; i++)
input_overlay_free_overlay(&ol->overlays[i]);
if (ol->overlays)
free(ol->overlays);
ol->overlays = NULL;
}
static bool input_overlay_load_texture_image(struct overlay *overlay,
struct texture_image *image, const char *path)
{
if (!image)
return false;
if (!texture_image_load(image, path))
return false;
overlay->load_images[overlay->load_images_size++] = *image;
return true;
}
static bool input_overlay_load_desc_image(
struct overlay_desc *desc,
struct overlay *input_overlay,
unsigned ol_idx, unsigned desc_idx)
{
char overlay_desc_image_key[64] = {0};
char image_path[PATH_MAX_LENGTH] = {0};
input_overlay_t *ol = overlay_ptr;
config_file_t *conf = ol ? config_file_new(ol->overlay_path) : NULL;
if (!ol || !conf)
return false;
snprintf(overlay_desc_image_key, sizeof(overlay_desc_image_key),
"overlay%u_desc%u_overlay", ol_idx, desc_idx);
if (config_get_path(conf, overlay_desc_image_key,
image_path, sizeof(image_path)))
{
char path[PATH_MAX_LENGTH] = {0};
fill_pathname_resolve_relative(path, ol->overlay_path,
image_path, sizeof(path));
if (input_overlay_load_texture_image(input_overlay, &desc->image, path))
desc->image_index = input_overlay->load_images_size - 1;
}
input_overlay->pos ++;
config_file_free(conf);
return true;
}
static bool input_overlay_load_desc(
struct overlay_desc *desc,
struct overlay *input_overlay,
unsigned ol_idx, unsigned desc_idx,
unsigned width, unsigned height,
bool normalized, float alpha_mod, float range_mod)
{
float width_mod, height_mod;
uint32_t box_hash, key_hash;
bool ret = true;
bool by_pixel = false;
char overlay_desc_key[64] = {0};
char conf_key[64] = {0};
char overlay_desc_normalized_key[64] = {0};
char overlay[256] = {0};
char *save = NULL;
char *key = NULL;
struct string_list *list = NULL;
const char *x = NULL;
const char *y = NULL;
const char *box = NULL;
input_overlay_t *ol = overlay_ptr;
config_file_t *conf = ol ? config_file_new(ol->overlay_path) : NULL;
if (!ol || !conf)
return false;
snprintf(overlay_desc_key, sizeof(overlay_desc_key),
"overlay%u_desc%u", ol_idx, desc_idx);
snprintf(overlay_desc_normalized_key, sizeof(overlay_desc_normalized_key),
"overlay%u_desc%u_normalized", ol_idx, desc_idx);
config_get_bool(conf, overlay_desc_normalized_key, &normalized);
by_pixel = !normalized;
if (by_pixel && (width == 0 || height == 0))
{
RARCH_ERR("[Overlay]: Base overlay is not set and not using normalized coordinates.\n");
goto error;
}
if (!config_get_array(conf, overlay_desc_key, overlay, sizeof(overlay)))
{
RARCH_ERR("[Overlay]: Didn't find key: %s.\n", overlay_desc_key);
goto error;
}
list = string_split(overlay, ", ");
if (!list)
{
RARCH_ERR("[Overlay]: Failed to split overlay desc.\n");
goto error;
}
if (list->size < 6)
{
RARCH_ERR("[Overlay]: Overlay desc is invalid. Requires at least 6 tokens.\n");
goto error;
}
key = list->elems[0].data;
x = list->elems[1].data;
y = list->elems[2].data;
box = list->elems[3].data;
box_hash = djb2_calculate(box);
key_hash = djb2_calculate(key);
desc->key_mask = 0;
switch (key_hash)
{
case KEY_ANALOG_LEFT:
desc->type = OVERLAY_TYPE_ANALOG_LEFT;
break;
case KEY_ANALOG_RIGHT:
desc->type = OVERLAY_TYPE_ANALOG_RIGHT;
break;
default:
if (strstr(key, "retrok_") == key)
{
desc->type = OVERLAY_TYPE_KEYBOARD;
desc->key_mask = input_translate_str_to_rk(key + 7);
}
else
{
const char *tmp = NULL;
desc->type = OVERLAY_TYPE_BUTTONS;
for (tmp = strtok_r(key, "|", &save); tmp; tmp = strtok_r(NULL, "|", &save))
{
if (strcmp(tmp, "nul") != 0)
desc->key_mask |= UINT64_C(1) << input_translate_str_to_bind_id(tmp);
}
if (desc->key_mask & (UINT64_C(1) << RARCH_OVERLAY_NEXT))
{
char overlay_target_key[64] = {0};
snprintf(overlay_target_key, sizeof(overlay_target_key),
"overlay%u_desc%u_next_target", ol_idx, desc_idx);
config_get_array(conf, overlay_target_key,
desc->next_index_name, sizeof(desc->next_index_name));
}
}
break;
}
width_mod = 1.0f;
height_mod = 1.0f;
if (by_pixel)
{
width_mod /= width;
height_mod /= height;
}
desc->x = (float)strtod(x, NULL) * width_mod;
desc->y = (float)strtod(y, NULL) * height_mod;
switch (box_hash)
{
case BOX_RADIAL:
desc->hitbox = OVERLAY_HITBOX_RADIAL;
break;
case BOX_RECT:
desc->hitbox = OVERLAY_HITBOX_RECT;
break;
default:
RARCH_ERR("[Overlay]: Hitbox type (%s) is invalid. Use \"radial\" or \"rect\".\n", box);
ret = false;
goto end;
}
switch (desc->type)
{
case OVERLAY_TYPE_ANALOG_LEFT:
case OVERLAY_TYPE_ANALOG_RIGHT:
{
char overlay_analog_saturate_key[64] = {0};
if (desc->hitbox != OVERLAY_HITBOX_RADIAL)
{
RARCH_ERR("[Overlay]: Analog hitbox type must be \"radial\".\n");
ret = false;
goto end;
}
snprintf(overlay_analog_saturate_key, sizeof(overlay_analog_saturate_key),
"overlay%u_desc%u_saturate_pct", ol_idx, desc_idx);
if (!config_get_float(conf, overlay_analog_saturate_key,
&desc->analog_saturate_pct))
desc->analog_saturate_pct = 1.0f;
}
break;
default:
/* OVERLAY_TYPE_BUTTONS - unhandled */
/* OVERLAY_TYPE_KEYBOARD - unhandled */
break;
}
desc->range_x = (float)strtod(list->elems[4].data, NULL) * width_mod;
desc->range_y = (float)strtod(list->elems[5].data, NULL) * height_mod;
desc->mod_x = desc->x - desc->range_x;
desc->mod_w = 2.0f * desc->range_x;
desc->mod_y = desc->y - desc->range_y;
desc->mod_h = 2.0f * desc->range_y;
snprintf(conf_key, sizeof(conf_key),
"overlay%u_desc%u_alpha_mod", ol_idx, desc_idx);
desc->alpha_mod = alpha_mod;
config_get_float(conf, conf_key, &desc->alpha_mod);
snprintf(conf_key, sizeof(conf_key),
"overlay%u_desc%u_range_mod", ol_idx, desc_idx);
desc->range_mod = range_mod;
config_get_float(conf, conf_key, &desc->range_mod);
snprintf(conf_key, sizeof(conf_key),
"overlay%u_desc%u_movable", ol_idx, desc_idx);
desc->movable = false;
desc->delta_x = 0.0f;
desc->delta_y = 0.0f;
config_get_bool(conf, conf_key, &desc->movable);
desc->range_x_mod = desc->range_x;
desc->range_y_mod = desc->range_y;
input_overlay->pos ++;
end:
if (list)
string_list_free(list);
if (conf)
config_file_free(conf);
return ret;
error:
if (list)
string_list_free(list);
if (conf)
config_file_free(conf);
return false;
}
static ssize_t input_overlay_find_index(const struct overlay *ol,
const char *name, size_t size)
{
size_t i;
if (!ol)
return -1;
for (i = 0; i < size; i++)
{
if (!strcmp(ol[i].name, name))
return i;
}
return -1;
}
static bool input_overlay_resolve_targets(struct overlay *ol,
size_t idx, size_t size)
{
size_t i;
struct overlay *current = NULL;
if (!ol)
return false;
current = (struct overlay*)&ol[idx];
for (i = 0; i < current->size; i++)
{
const char *next = current->descs[i].next_index_name;
if (*next)
{
ssize_t next_idx = input_overlay_find_index(ol, next, size);
if (next_idx < 0)
{
RARCH_ERR("[Overlay]: Couldn't find overlay called: \"%s\".\n",
next);
return false;
}
current->descs[i].next_index = next_idx;
}
else
current->descs[i].next_index = (idx + 1) % size;
}
return true;
}
static void input_overlay_load_active(float opacity)
{
input_overlay_t *ol = overlay_ptr;
if (!ol)
return;
if (ol->iface && ol->iface->load)
ol->iface->load(ol->iface_data, ol->active->load_images,
ol->active->load_images_size);
input_overlay_set_alpha_mod(opacity);
input_overlay_set_vertex_geom();
if (ol->iface && ol->iface->full_screen)
ol->iface->full_screen(ol->iface_data, ol->active->full_screen);
}
/**
* input_overlay_enable:
* @enable : Enable or disable the overlay
*
* Enable or disable the overlay.
**/
static void input_overlay_enable(bool enable)
{
input_overlay_t *ol = overlay_ptr;
if (!ol)
return;
ol->enable = enable;
if (ol->iface && ol->iface->enable)
ol->iface->enable(ol->iface_data, enable);
}
bool input_overlay_load_overlays_resolve_iterate(void)
{
input_overlay_t *ol = overlay_ptr;
bool not_done = true;
if (!ol)
return false;
not_done = ol->resolve_pos < ol->size;
if (!not_done)
{
ol->state = OVERLAY_STATUS_DEFERRED_DONE;
return true;
}
if (!input_overlay_resolve_targets(ol->overlays, ol->resolve_pos, ol->size))
{
RARCH_ERR("[Overlay]: Failed to resolve next targets.\n");
goto error;
}
if (ol->resolve_pos == 0)
{
ol->active = &ol->overlays[0];
input_overlay_load_active(ol->deferred.opacity);
input_overlay_enable(ol->deferred.enable);
}
ol->resolve_pos += 1;
return true;
error:
ol->state = OVERLAY_STATUS_DEFERRED_ERROR;
return false;
}
static bool input_overlay_load_overlay_image_done(struct overlay *overlay)
{
overlay->pos = 0;
/* Divide iteration steps by half of total descs if size is even,
* otherwise default to 8 (arbitrary value for now to speed things up). */
overlay->pos_increment = (overlay->size / 2) ? (overlay->size / 2) : 8;
#if 0
RARCH_LOG("pos increment: %u\n", overlay->pos_increment);
#endif
return true;
}
bool input_overlay_load_overlays_iterate(void)
{
size_t i = 0;
bool not_done = true;
struct overlay *overlay = NULL;
input_overlay_t *ol = overlay_ptr;
if (!ol)
return false;
overlay = &ol->overlays[ol->pos];
not_done = ol->pos < ol->size;
if (!not_done)
{
ol->state = OVERLAY_STATUS_DEFERRED_LOADING_RESOLVE;
return true;
}
switch (ol->loading_status)
{
case OVERLAY_IMAGE_TRANSFER_NONE:
case OVERLAY_IMAGE_TRANSFER_BUSY:
ol->loading_status = OVERLAY_IMAGE_TRANSFER_DONE;
break;
case OVERLAY_IMAGE_TRANSFER_DONE:
input_overlay_load_overlay_image_done(&ol->overlays[ol->pos]);
ol->loading_status = OVERLAY_IMAGE_TRANSFER_DESC_IMAGE_ITERATE;
ol->overlays[ol->pos].pos = 0;
break;
case OVERLAY_IMAGE_TRANSFER_DESC_IMAGE_ITERATE:
for (i = 0; i < overlay->pos_increment; i++)
{
if (overlay->pos < overlay->size)
{
input_overlay_load_desc_image(
&overlay->descs[overlay->pos], overlay,
ol->pos, overlay->pos);
}
else
{
overlay->pos = 0;
ol->loading_status = OVERLAY_IMAGE_TRANSFER_DESC_ITERATE;
break;
}
}
break;
case OVERLAY_IMAGE_TRANSFER_DESC_ITERATE:
for (i = 0; i < overlay->pos_increment; i++)
{
if (overlay->pos < overlay->size)
{
if (!input_overlay_load_desc(&overlay->descs[overlay->pos], overlay,
ol->pos, overlay->pos,
overlay->image.width, overlay->image.height,
overlay->config.normalized,
overlay->config.alpha_mod, overlay->config.range_mod))
{
RARCH_ERR("[Overlay]: Failed to load overlay descs for overlay #%u.\n",
(unsigned)overlay->pos);
goto error;
}
}
else
{
overlay->pos = 0;
ol->loading_status = OVERLAY_IMAGE_TRANSFER_DESC_DONE;
break;
}
}
break;
case OVERLAY_IMAGE_TRANSFER_DESC_DONE:
if (ol->pos == 0)
input_overlay_load_overlays_resolve_iterate();
ol->pos += 1;
ol->loading_status = OVERLAY_IMAGE_TRANSFER_NONE;
break;
case OVERLAY_IMAGE_TRANSFER_ERROR:
goto error;
}
return true;
error:
ol->state = OVERLAY_STATUS_DEFERRED_ERROR;
return false;
}
bool input_overlay_load_overlays(void)
{
unsigned i;
input_overlay_t *ol = overlay_ptr;
config_file_t *conf = config_file_new(ol->overlay_path);
if (!ol || !conf)
return false;
for (i = 0; i < ol->pos_increment; i++, ol->pos++)
{
char conf_key[64] = {0};
char overlay_full_screen_key[64] = {0};
struct overlay *overlay = NULL;
bool to_cont = ol->pos < ol->size;
if (!to_cont)
{
ol->pos = 0;
ol->state = OVERLAY_STATUS_DEFERRED_LOADING;
break;
}
overlay = &ol->overlays[ol->pos];
if (!overlay)
continue;
snprintf(overlay->config.descs.key,
sizeof(overlay->config.descs.key), "overlay%u_descs", ol->pos);
if (!config_get_uint(conf, overlay->config.descs.key, &overlay->config.descs.size))
{
RARCH_ERR("[Overlay]: Failed to read number of descs from config key: %s.\n",
overlay->config.descs.key);
goto error;
}
overlay->descs = (struct overlay_desc*)
calloc(overlay->config.descs.size, sizeof(*overlay->descs));
if (!overlay->descs)
{
RARCH_ERR("[Overlay]: Failed to allocate descs.\n");
goto error;
}
overlay->size = overlay->config.descs.size;
snprintf(overlay_full_screen_key, sizeof(overlay_full_screen_key),
"overlay%u_full_screen", ol->pos);
overlay->full_screen = false;
config_get_bool(conf, overlay_full_screen_key, &overlay->full_screen);
overlay->config.normalized = false;
overlay->config.alpha_mod = 1.0f;
overlay->config.range_mod = 1.0f;
snprintf(conf_key, sizeof(conf_key),
"overlay%u_normalized", ol->pos);
config_get_bool(conf, conf_key, &overlay->config.normalized);
snprintf(conf_key, sizeof(conf_key), "overlay%u_alpha_mod", ol->pos);
config_get_float(conf, conf_key, &overlay->config.alpha_mod);
snprintf(conf_key, sizeof(conf_key), "overlay%u_range_mod", ol->pos);
config_get_float(conf, conf_key, &overlay->config.range_mod);
/* Precache load image array for simplicity. */
overlay->load_images = (struct texture_image*)
calloc(1 + overlay->size, sizeof(struct texture_image));
if (!overlay->load_images)
{
RARCH_ERR("[Overlay]: Failed to allocate load_images.\n");
goto error;
}
snprintf(overlay->config.paths.key, sizeof(overlay->config.paths.key),
"overlay%u_overlay", ol->pos);
config_get_path(conf, overlay->config.paths.key,
overlay->config.paths.path, sizeof(overlay->config.paths.path));
if (overlay->config.paths.path[0] != '\0')
{
char overlay_resolved_path[PATH_MAX_LENGTH] = {0};
fill_pathname_resolve_relative(overlay_resolved_path, ol->overlay_path,
overlay->config.paths.path, sizeof(overlay_resolved_path));
if (!input_overlay_load_texture_image(overlay, &overlay->image, overlay_resolved_path))
{
RARCH_ERR("[Overlay]: Failed to load image: %s.\n",
overlay_resolved_path);
ol->loading_status = OVERLAY_IMAGE_TRANSFER_ERROR;
goto error;
}
}
snprintf(overlay->config.names.key, sizeof(overlay->config.names.key),
"overlay%u_name", ol->pos);
config_get_array(conf, overlay->config.names.key,
overlay->name, sizeof(overlay->name));
/* By default, we stretch the overlay out in full. */
overlay->x = overlay->y = 0.0f;
overlay->w = overlay->h = 1.0f;
snprintf(overlay->config.rect.key, sizeof(overlay->config.rect.key),
"overlay%u_rect", ol->pos);
if (config_get_array(conf, overlay->config.rect.key,
overlay->config.rect.array, sizeof(overlay->config.rect.array)))
{
struct string_list *list = string_split(overlay->config.rect.array, ", ");
if (!list || list->size < 4)
{
RARCH_ERR("[Overlay]: Failed to split rect \"%s\" into at least four tokens.\n",
overlay->config.rect.array);
string_list_free(list);
goto error;
}
overlay->x = (float)strtod(list->elems[0].data, NULL);
overlay->y = (float)strtod(list->elems[1].data, NULL);
overlay->w = (float)strtod(list->elems[2].data, NULL);
overlay->h = (float)strtod(list->elems[3].data, NULL);
string_list_free(list);
}
/* Assume for now that scaling center is in the middle.
* TODO: Make this configurable. */
overlay->block_scale = false;
overlay->center_x = overlay->x + 0.5f * overlay->w;
overlay->center_y = overlay->y + 0.5f * overlay->h;
}
if (conf)
config_file_free(conf);
return true;
error:
ol->pos = 0;
ol->state = OVERLAY_STATUS_DEFERRED_ERROR;
if (conf)
config_file_free(conf);
return false;
}
bool input_overlay_new_done(void)
{
input_overlay_t *ol = overlay_ptr;
if (!ol)
return false;
input_overlay_set_alpha_mod(ol->deferred.opacity);
input_overlay_set_scale_factor(ol->deferred.scale_factor);
ol->next_index = (ol->index + 1) % ol->size;
ol->state = OVERLAY_STATUS_NONE;
ol->alive = true;
return true;
}
static bool input_overlay_load_overlays_init(input_overlay_t *ol)
{
config_file_t *conf = config_file_new(ol->overlay_path);
if (!conf)
return false;
if (!config_get_uint(conf, "overlays", &ol->config.overlays.size))
{
RARCH_ERR("overlays variable not defined in config.\n");
goto error;
}
if (!ol->config.overlays.size)
goto error;
ol->overlays = (struct overlay*)calloc(
ol->config.overlays.size, sizeof(*ol->overlays));
if (!ol->overlays)
goto error;
ol->size = ol->config.overlays.size;
ol->pos = 0;
ol->resolve_pos = 0;
ol->pos_increment = (ol->size / 4) ? (ol->size / 4) : 4;
config_file_free(conf);
return true;
error:
ol->state = OVERLAY_STATUS_DEFERRED_ERROR;
if (conf)
config_file_free(conf);
return false;
}
/**
* input_overlay_new:
* @path : Path to overlay file.
* @enable : Enable the overlay after initializing it?
*
* Creates and initializes an overlay handle.
*
* Returns: Overlay handle on success, otherwise NULL.
**/
input_overlay_t *input_overlay_new(const char *path, bool enable,
float opacity, float scale_factor)
{
input_overlay_t *ol = (input_overlay_t*)calloc(1, sizeof(*ol));
driver_t *driver = driver_get_ptr();
if (!ol)
goto error;
ol->overlay_path = strdup(path);
if (!ol->overlay_path)
{
free(ol);
return NULL;
}
if (!video_driver_overlay_interface(&ol->iface))
{
RARCH_ERR("Overlay interface is not present in video driver.\n");
goto error;
}
ol->iface_data = driver->video_data;
if (!ol->iface)
goto error;
ol->state = OVERLAY_STATUS_DEFERRED_LOAD;
ol->deferred.enable = enable;
ol->deferred.opacity = opacity;
ol->deferred.scale_factor = scale_factor;
ol->pos = 0;
input_overlay_load_overlays_init(ol);
return ol;
error:
input_overlay_free();
return NULL;
}
/**
* inside_hitbox:
* @desc : Overlay descriptor handle.
* @x : X coordinate value.
* @y : Y coordinate value.
*
* Check whether the given @x and @y coordinates of the overlay
* descriptor @desc is inside the overlay descriptor's hitbox.
*
* Returns: true (1) if X, Y coordinates are inside a hitbox, otherwise false (0).
**/
static bool inside_hitbox(const struct overlay_desc *desc, float x, float y)
{
if (!desc)
return false;
switch (desc->hitbox)
{
case OVERLAY_HITBOX_RADIAL:
{
/* Ellipsis. */
float x_dist = (x - desc->x) / desc->range_x_mod;
float y_dist = (y - desc->y) / desc->range_y_mod;
float sq_dist = x_dist * x_dist + y_dist * y_dist;
return (sq_dist <= 1.0f);
}
case OVERLAY_HITBOX_RECT:
return (fabs(x - desc->x) <= desc->range_x_mod) &&
(fabs(y - desc->y) <= desc->range_y_mod);
}
return false;
}
/**
* input_overlay_poll:
* @out : Polled output data.
* @norm_x : Normalized X coordinate.
* @norm_y : Normalized Y coordinate.
*
* Polls input overlay.
*
* @norm_x and @norm_y are the result of
* input_translate_coord_viewport().
**/
static void input_overlay_poll(input_overlay_state_t *out,
int16_t norm_x, int16_t norm_y)
{
size_t i;
float x, y;
input_overlay_t *ol = overlay_ptr;
memset(out, 0, sizeof(*out));
if (!ol->enable)
{
ol->blocked = false;
return;
}
/* norm_x and norm_y is in [-0x7fff, 0x7fff] range,
* like RETRO_DEVICE_POINTER. */
x = (float)(norm_x + 0x7fff) / 0xffff;
y = (float)(norm_y + 0x7fff) / 0xffff;
x -= ol->active->mod_x;
y -= ol->active->mod_y;
x /= ol->active->mod_w;
y /= ol->active->mod_h;
for (i = 0; i < ol->active->size; i++)
{
float x_dist, y_dist;
struct overlay_desc *desc = &ol->active->descs[i];
if (!desc)
continue;
if (!inside_hitbox(desc, x, y))
continue;
desc->updated = true;
x_dist = x - desc->x;
y_dist = y - desc->y;
switch (desc->type)
{
case OVERLAY_TYPE_BUTTONS:
{
uint64_t mask = desc->key_mask;
out->buttons |= mask;
if (mask & (UINT64_C(1) << RARCH_OVERLAY_NEXT))
ol->next_index = desc->next_index;
}
break;
case OVERLAY_TYPE_KEYBOARD:
if (desc->key_mask < RETROK_LAST)
OVERLAY_SET_KEY(out, desc->key_mask);
break;
default:
{
float x_val = x_dist / desc->range_x;
float y_val = y_dist / desc->range_y;
float x_val_sat = x_val / desc->analog_saturate_pct;
float y_val_sat = y_val / desc->analog_saturate_pct;
unsigned int base = (desc->type == OVERLAY_TYPE_ANALOG_RIGHT) ? 2 : 0;
out->analog[base + 0] = clamp_float(x_val_sat, -1.0f, 1.0f) * 32767.0f;
out->analog[base + 1] = clamp_float(y_val_sat, -1.0f, 1.0f) * 32767.0f;
}
break;
}
if (desc->movable)
{
desc->delta_x = clamp_float(x_dist, -desc->range_x, desc->range_x)
* ol->active->mod_w;
desc->delta_y = clamp_float(y_dist, -desc->range_y, desc->range_y)
* ol->active->mod_h;
}
}
if (!out->buttons)
ol->blocked = false;
else if (ol->blocked)
memset(out, 0, sizeof(*out));
}
/**
* input_overlay_update_desc_geom:
* @ol : overlay handle.
* @desc : overlay descriptors handle.
*
* Update input overlay descriptors' vertex geometry.
**/
static void input_overlay_update_desc_geom(input_overlay_t *ol,
struct overlay_desc *desc)
{
if (!desc || !desc->image.pixels)
return;
if (!desc->movable)
return;
if (ol->iface && ol->iface->vertex_geom)
ol->iface->vertex_geom(ol->iface_data, desc->image_index,
desc->mod_x + desc->delta_x, desc->mod_y + desc->delta_y,
desc->mod_w, desc->mod_h);
desc->delta_x = 0.0f;
desc->delta_y = 0.0f;
}
/**
* input_overlay_post_poll:
*
* Called after all the input_overlay_poll() calls to
* update the range modifiers for pressed/unpressed regions
* and alpha mods.
**/
static void input_overlay_post_poll(float opacity)
{
size_t i;
input_overlay_t *ol = overlay_ptr;
if (!ol)
return;
input_overlay_set_alpha_mod(opacity);
for (i = 0; i < ol->active->size; i++)
{
struct overlay_desc *desc = &ol->active->descs[i];
if (!desc)
continue;
desc->range_x_mod = desc->range_x;
desc->range_y_mod = desc->range_y;
if (desc->updated)
{
/* If pressed this frame, change the hitbox. */
desc->range_x_mod *= desc->range_mod;
desc->range_y_mod *= desc->range_mod;
if (desc->image.pixels)
{
if (ol->iface && ol->iface->set_alpha)
ol->iface->set_alpha(ol->iface_data, desc->image_index,
desc->alpha_mod * opacity);
}
}
input_overlay_update_desc_geom(ol, desc);
desc->updated = false;
}
}
/**
* input_overlay_poll_clear:
* @ol : overlay handle
*
* Call when there is nothing to poll. Allows overlay to
* clear certain state.
**/
static void input_overlay_poll_clear(float opacity)
{
size_t i;
input_overlay_t *ol = overlay_ptr;
if (!ol)
return;
ol->blocked = false;
input_overlay_set_alpha_mod(opacity);
for (i = 0; i < ol->active->size; i++)
{
struct overlay_desc *desc = &ol->active->descs[i];
if (!desc)
continue;
desc->range_x_mod = desc->range_x;
desc->range_y_mod = desc->range_y;
desc->updated = false;
desc->delta_x = 0.0f;
desc->delta_y = 0.0f;
input_overlay_update_desc_geom(ol, desc);
}
}
/**
* input_overlay_next:
* @ol : Overlay handle.
*
* Switch to the next available overlay
* screen.
**/
void input_overlay_next(float opacity)
{
input_overlay_t *ol = overlay_ptr;
if (!ol)
return;
ol->index = ol->next_index;
ol->active = &ol->overlays[ol->index];
input_overlay_load_active(opacity);
ol->blocked = true;
ol->next_index = (ol->index + 1) % ol->size;
}
/**
* input_overlay_full_screen:
*
* Checks if the overlay is fullscreen.
*
* Returns: true (1) if overlay is fullscreen, otherwise false (0).
**/
static bool input_overlay_full_screen(void)
{
input_overlay_t *ol = overlay_ptr;
if (!ol)
return false;
return ol->active->full_screen;
}
/**
* input_overlay_free:
* @ol : Overlay handle.
*
* Frees overlay handle.
**/
void input_overlay_free(void)
{
input_overlay_t *ol = overlay_ptr;
if (!ol)
return;
input_overlay_free_overlays();
if (ol->iface && ol->iface->enable)
ol->iface->enable(ol->iface_data, false);
if (ol->overlay_path)
free(ol->overlay_path);
ol->overlay_path = NULL;
free(ol);
}
void input_overlay_free_ptr(void)
{
input_overlay_free();
overlay_ptr = NULL;
memset(&overlay_st_ptr, 0, sizeof(overlay_st_ptr));
}
int input_overlay_new_ptr(void)
{
driver_t *driver = driver_get_ptr();
settings_t *settings = config_get_ptr();
if (driver->osk_enable)
{
if (!*settings->osk.overlay)
return 1;
}
else
{
if (!*settings->input.overlay)
return 1;
}
overlay_ptr = input_overlay_new(
driver->osk_enable ?
settings->osk.overlay : settings->input.overlay,
driver->osk_enable ?
settings->osk.enable : settings->input.overlay_enable,
settings->input.overlay_opacity,
settings->input.overlay_scale);
if (!overlay_ptr)
return -1;
return 0;
}
/**
* input_overlay_set_alpha_mod:
* @ol : Overlay handle.
* @mod : New modulating factor to apply.
*
* Sets a modulating factor for alpha channel. Default is 1.0.
* The alpha factor is applied for all overlays.
**/
void input_overlay_set_alpha_mod(float mod)
{
unsigned i;
input_overlay_t *ol = overlay_ptr;
if (!ol)
return;
for (i = 0; i < ol->active->load_images_size; i++)
ol->iface->set_alpha(ol->iface_data, i, mod);
}
bool input_overlay_is_alive(void)
{
input_overlay_t *ol = overlay_ptr;
if (!ol)
return false;
return ol->alive;
}
enum overlay_status input_overlay_status(void)
{
input_overlay_t *ol = overlay_ptr;
if (!ol)
return OVERLAY_STATUS_NONE;
return ol->state;
}
bool input_overlay_key_pressed(int key)
{
input_overlay_state_t *ol_state = input_overlay_get_state_ptr();
if (!ol_state)
return false;
return (ol_state->buttons & (UINT64_C(1) << key));
}
/*
* input_poll_overlay:
*
* Poll pressed buttons/keys on currently active overlay.
**/
void input_poll_overlay(float opacity)
{
input_overlay_state_t old_key_state;
unsigned i, j, device;
uint16_t key_mod = 0;
bool polled = false;
settings_t *settings = config_get_ptr();
input_overlay_state_t *ol_state = input_overlay_get_state_ptr();
if (!input_overlay_is_alive() || !ol_state)
return;
memcpy(old_key_state.keys, ol_state->keys,
sizeof(ol_state->keys));
memset(ol_state, 0, sizeof(*ol_state));
device = input_overlay_full_screen() ?
RARCH_DEVICE_POINTER_SCREEN : RETRO_DEVICE_POINTER;
for (i = 0;
input_driver_state(NULL, 0, device, i,
RETRO_DEVICE_ID_POINTER_PRESSED);
i++)
{
input_overlay_state_t polled_data;
int16_t x = input_driver_state(NULL, 0,
device, i, RETRO_DEVICE_ID_POINTER_X);
int16_t y = input_driver_state(NULL, 0,
device, i, RETRO_DEVICE_ID_POINTER_Y);
input_overlay_poll(&polled_data, x, y);
ol_state->buttons |= polled_data.buttons;
for (j = 0; j < ARRAY_SIZE(ol_state->keys); j++)
ol_state->keys[j] |= polled_data.keys[j];
/* Fingers pressed later take prio and matched up
* with overlay poll priorities. */
for (j = 0; j < 4; j++)
if (polled_data.analog[j])
ol_state->analog[j] = polled_data.analog[j];
polled = true;
}
if (OVERLAY_GET_KEY(ol_state, RETROK_LSHIFT) ||
OVERLAY_GET_KEY(ol_state, RETROK_RSHIFT))
key_mod |= RETROKMOD_SHIFT;
if (OVERLAY_GET_KEY(ol_state, RETROK_LCTRL) ||
OVERLAY_GET_KEY(ol_state, RETROK_RCTRL))
key_mod |= RETROKMOD_CTRL;
if (OVERLAY_GET_KEY(ol_state, RETROK_LALT) ||
OVERLAY_GET_KEY(ol_state, RETROK_RALT))
key_mod |= RETROKMOD_ALT;
if (OVERLAY_GET_KEY(ol_state, RETROK_LMETA) ||
OVERLAY_GET_KEY(ol_state, RETROK_RMETA))
key_mod |= RETROKMOD_META;
/* CAPSLOCK SCROLLOCK NUMLOCK */
for (i = 0; i < ARRAY_SIZE(ol_state->keys); i++)
{
if (ol_state->keys[i] != old_key_state.keys[i])
{
uint32_t orig_bits = old_key_state.keys[i];
uint32_t new_bits = ol_state->keys[i];
for (j = 0; j < 32; j++)
if ((orig_bits & (1 << j)) != (new_bits & (1 << j)))
input_keyboard_event(new_bits & (1 << j),
i * 32 + j, 0, key_mod, RETRO_DEVICE_POINTER);
}
}
/* Map "analog" buttons to analog axes like regular input drivers do. */
for (j = 0; j < 4; j++)
{
unsigned bind_plus = RARCH_ANALOG_LEFT_X_PLUS + 2 * j;
unsigned bind_minus = bind_plus + 1;
if (ol_state->analog[j])
continue;
if (input_overlay_key_pressed(bind_plus))
ol_state->analog[j] += 0x7fff;
if (input_overlay_key_pressed(bind_minus))
ol_state->analog[j] -= 0x7fff;
}
/* Check for analog_dpad_mode.
* Map analogs to d-pad buttons when configured. */
switch (settings->input.analog_dpad_mode[0])
{
case ANALOG_DPAD_LSTICK:
case ANALOG_DPAD_RSTICK:
{
float analog_x, analog_y;
unsigned analog_base = 2;
if (settings->input.analog_dpad_mode[0] == ANALOG_DPAD_LSTICK)
analog_base = 0;
analog_x = (float)ol_state->analog[analog_base + 0] / 0x7fff;
analog_y = (float)ol_state->analog[analog_base + 1] / 0x7fff;
if (analog_x <= -settings->input.axis_threshold)
ol_state->buttons |= (1UL << RETRO_DEVICE_ID_JOYPAD_LEFT);
if (analog_x >= settings->input.axis_threshold)
ol_state->buttons |= (1UL << RETRO_DEVICE_ID_JOYPAD_RIGHT);
if (analog_y <= -settings->input.axis_threshold)
ol_state->buttons |= (1UL << RETRO_DEVICE_ID_JOYPAD_UP);
if (analog_y >= settings->input.axis_threshold)
ol_state->buttons |= (1UL << RETRO_DEVICE_ID_JOYPAD_DOWN);
break;
}
default:
break;
}
if (polled)
input_overlay_post_poll(opacity);
else
input_overlay_poll_clear(opacity);
}
void input_state_overlay(int16_t *ret, unsigned port, unsigned device, unsigned idx,
unsigned id)
{
input_overlay_state_t *ol_state = input_overlay_get_state_ptr();
if (!ol_state)
return;
if (port != 0)
return;
switch (device)
{
case RETRO_DEVICE_JOYPAD:
if (input_overlay_key_pressed(id))
*ret |= 1;
break;
case RETRO_DEVICE_KEYBOARD:
if (id < RETROK_LAST)
{
if (OVERLAY_GET_KEY(ol_state, id))
*ret |= 1;
}
break;
case RETRO_DEVICE_ANALOG:
{
unsigned base = 0;
if (idx == RETRO_DEVICE_INDEX_ANALOG_RIGHT)
base = 2;
if (id == RETRO_DEVICE_ID_ANALOG_Y)
base += 1;
if (ol_state && ol_state->analog[base])
*ret = ol_state->analog[base];
}
break;
}
}
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