mirror of
https://github.com/libretro/RetroArch.git
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116 lines
3.7 KiB
C
116 lines
3.7 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
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* Copyright (C) 2011-2017 - Daniel De Matteis
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* Copyright (C) 2019-2020 - James Leaver
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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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#ifndef _DINGUX_UTILS_H
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#define _DINGUX_UTILS_H
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#include <retro_common_api.h>
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#include <libretro.h>
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#include <boolean.h>
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#include <frontend/frontend_driver.h>
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RETRO_BEGIN_DECLS
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/* Specifies all possible image filtering
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* methods when using the IPU hardware scaler
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* > Note: We do not allow 'fine tuning' of the
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* bicubic sharpness factor, since anything
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* other than the default value looks terrible... */
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enum dingux_ipu_filter_type
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{
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DINGUX_IPU_FILTER_BICUBIC = 0,
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DINGUX_IPU_FILTER_BILINEAR,
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DINGUX_IPU_FILTER_NEAREST,
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DINGUX_IPU_FILTER_LAST
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};
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#if defined(DINGUX_BETA)
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/* Specifies all video refresh rates supported
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* by OpenDingux Beta */
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enum dingux_refresh_rate
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{
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DINGUX_REFRESH_RATE_60HZ = 0,
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DINGUX_REFRESH_RATE_50HZ,
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DINGUX_REFRESH_RATE_LAST
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};
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#endif
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/* Enables/disables downscaling when using
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* the IPU hardware scaler */
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bool dingux_ipu_set_downscaling_enable(bool enable);
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/* Sets the video scaling mode when using the
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* IPU hardware scaler
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* - keep_aspect: When 'true', aspect ratio correction
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* (1:1 PAR) is applied. When 'false', image is
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* stretched to full screen dimensions
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* - integer_scale: When 'true', enables integer
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* scaling. This implicitly sets keep_aspect to
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* 'true' (since integer scaling is by definition
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* 1:1 PAR)
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* Note: OpenDingux stock firmware allows keep_aspect
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* and integer_scale to be set independently, hence
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* separate boolean values. OpenDingux beta properly
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* groups the settings into a single scaling type
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* parameter. When supporting both firmwares, it would
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* be cleaner to refactor this function to accept one
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* enum rather than 2 booleans - but this would break
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* users' existing configs, so we maintain the old
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* format... */
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bool dingux_ipu_set_scaling_mode(bool keep_aspect, bool integer_scale);
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/* Sets the image filtering method when
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* using the IPU hardware scaler */
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bool dingux_ipu_set_filter_type(enum dingux_ipu_filter_type filter_type);
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#if defined(DINGUX_BETA)
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/* Sets the refresh rate of the integral LCD panel.
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* If specified value is invalid, will set refresh
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* rate to 60 Hz.
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* Returns a floating point representation of the
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* resultant hardware refresh rate. In the event
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* that a refresh rate cannot be set (i.e. hardware
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* error), returns 0.0 */
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float dingux_set_video_refresh_rate(enum dingux_refresh_rate refresh_rate);
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/* Gets the currently set refresh rate of the
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* integral LCD panel.
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* Returns false if hardware is in an undefined
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* state. */
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bool dingux_get_video_refresh_rate(enum dingux_refresh_rate *refresh_rate);
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#endif
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/* Resets the IPU hardware scaler to the
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* default configuration */
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bool dingux_ipu_reset(void);
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/* Fetches internal battery level */
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int dingux_get_battery_level(void);
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/* Fetches internal battery level */
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int retrofw_get_battery_level(enum frontend_powerstate *source);
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/* Fetches the path of the base 'retroarch'
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* directory */
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void dingux_get_base_path(char *path, size_t len);
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RETRO_END_DECLS
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#endif
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