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LibretroAdmin
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While the bottom screen shows a core's screens, its touches are the core's pointer at that point of the packed frame: the 3DS input driver answers RETRO_DEVICE_POINTER through the views the bottom screen shows, off them as offscreen. A DS core's touchscreen works on the 3DS's. The lock-free map from a console's own display to the packed frame the Wii U driver kept for the GamePad is video_views_touch_t now, shared by both, with a unit test.
103 lines
2.9 KiB
C
103 lines
2.9 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2014-2017 - Ali Bouhlel
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* Copyright (C) 2011-2017 - Daniel De Matteis
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdint.h>
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#include <stdlib.h>
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#include <boolean.h>
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#include <libretro.h>
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#include <retro_miscellaneous.h>
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#ifdef HAVE_CONFIG_H
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#include "../../config.h"
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#endif
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#include <3ds.h>
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#include "../input_driver.h"
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#include "../../gfx/video_driver.h"
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#define CTR_BOTTOM_WIDTH 320
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#define CTR_BOTTOM_HEIGHT 240
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static void ctr_input_free_input(void *data) { }
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static void* ctr_input_init(const char *a) { return (void*)-1; }
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/* The core's pointer: the bottom screen's touch, while it shows the
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* core's screens, at that point of its packed frame. The joypad's poll
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* has scanned the touchscreen. */
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static int16_t ctr_input_state(
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void *data,
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const input_device_driver_t *joypad,
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rarch_joypad_info_t *joypad_info,
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const retro_keybind_set *binds,
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unsigned port,
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unsigned device,
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unsigned idx,
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unsigned id)
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{
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touchPosition touch;
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int16_t x, y;
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if (device != RETRO_DEVICE_POINTER || port || idx)
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return 0;
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if (!(hidKeysHeld() & KEY_TOUCH))
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return 0;
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hidTouchRead(&touch);
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/* The touch across the screen, as the views map it */
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x = (int16_t)((int)touch.px * 0xfffe / (CTR_BOTTOM_WIDTH - 1) - 0x7fff);
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y = (int16_t)((int)touch.py * 0xfffe / (CTR_BOTTOM_HEIGHT - 1) - 0x7fff);
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if (!ctr_views_touch(x, y, &x, &y))
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return 0;
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switch (id)
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{
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case RETRO_DEVICE_ID_POINTER_X:
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return x;
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case RETRO_DEVICE_ID_POINTER_Y:
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return y;
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case RETRO_DEVICE_ID_POINTER_PRESSED:
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return 1;
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case RETRO_DEVICE_ID_POINTER_IS_OFFSCREEN:
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return (x == -0x8000) ? 1 : 0;
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case RETRO_DEVICE_ID_POINTER_COUNT:
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return 1;
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default:
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break;
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}
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return 0;
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}
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static uint64_t ctr_input_get_capabilities(void *data)
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{
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return (1 << RETRO_DEVICE_JOYPAD) | (1 << RETRO_DEVICE_ANALOG)
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| (1 << RETRO_DEVICE_POINTER);
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}
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input_driver_t input_ctr = {
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ctr_input_init,
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NULL, /* poll */
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ctr_input_state,
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ctr_input_free_input,
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NULL,
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NULL,
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ctr_input_get_capabilities,
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"ctr",
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NULL, /* grab_mouse */
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NULL,
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NULL
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};
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