mirror of
https://github.com/libretro/RetroArch.git
synced 2024-11-25 08:59:58 +00:00
54 lines
2.0 KiB
C
54 lines
2.0 KiB
C
/* RetroArch - A frontend for libretro.
|
|
* Copyright (C) 2010-2013 - Hans-Kristian Arntzen
|
|
*
|
|
* 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/>.
|
|
*/
|
|
|
|
#ifndef INPUT_OVERLAY_H__
|
|
#define INPUT_OVERLAY_H__
|
|
|
|
#include "../boolean.h"
|
|
#include <stdint.h>
|
|
|
|
// Overlay driver acts as a medium between input drivers and video driver.
|
|
// Coordinates are fetched from input driver, and an overlay with pressable actions are
|
|
// displayed on-screen.
|
|
//
|
|
// This interface requires that the video driver has support for the overlay interface.
|
|
typedef struct input_overlay input_overlay_t;
|
|
|
|
input_overlay_t *input_overlay_new(const char *overlay);
|
|
void input_overlay_free(input_overlay_t *ol);
|
|
|
|
void input_overlay_enable(input_overlay_t *ol, bool enable);
|
|
|
|
bool input_overlay_full_screen(input_overlay_t *ol);
|
|
|
|
// norm_x and norm_y are the result of input_translate_coord_viewport().
|
|
// Resulting state is a bitmask of (1 << key_bind_id).
|
|
uint64_t input_overlay_poll(input_overlay_t *ol, int16_t norm_x, int16_t norm_y);
|
|
|
|
// Call when there is nothing to poll. Allows overlay to clear certain state.
|
|
void input_overlay_poll_clear(input_overlay_t *ol);
|
|
|
|
// 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(input_overlay_t *ol, float mod);
|
|
|
|
// Scales the overlay by a factor of scale.
|
|
void input_overlay_set_scale_factor(input_overlay_t *ol, float scale);
|
|
|
|
void input_overlay_next(input_overlay_t *ol);
|
|
|
|
#endif
|
|
|