mirror of
https://github.com/libretro/RetroArch.git
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542 lines
14 KiB
C
542 lines
14 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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*
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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 <string.h>
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#include <compat/strl.h>
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#include <retro_assert.h>
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#include <file/file_path.h>
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#include <string/stdstring.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 "menu_driver.h"
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#include "menu_shader.h"
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#include "../file_path_special.h"
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#include "../configuration.h"
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#include "../paths.h"
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#include "../retroarch.h"
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#include "../verbosity.h"
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/* Menu shader */
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static struct video_shader *menu_driver_shader = NULL;
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struct video_shader *menu_shader_get(void)
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{
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if (video_shader_any_supported())
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return menu_driver_shader;
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return NULL;
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}
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void menu_shader_manager_decrement_amount_passes(void)
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{
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struct video_shader *shader = menu_shader_get();
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if (!shader)
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return;
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shader->passes--;
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}
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void menu_shader_manager_increment_amount_passes(void)
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{
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struct video_shader *shader = menu_shader_get();
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if (!shader)
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return;
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shader->passes++;
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}
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void menu_shader_manager_free(void)
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{
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if (menu_driver_shader)
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free(menu_driver_shader);
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menu_driver_shader = NULL;
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}
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/**
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* menu_shader_manager_init:
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*
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* Initializes shader manager.
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**/
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bool menu_shader_manager_init(void)
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{
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bool is_preset = false;
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config_file_t *conf = NULL;
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char *new_path = NULL;
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const char *path_shader = retroarch_get_shader_preset();
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enum rarch_shader_type type = RARCH_SHADER_NONE;
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menu_shader_manager_free();
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menu_driver_shader = (struct video_shader*)
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calloc(1, sizeof(struct video_shader));
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if (!menu_driver_shader || !path_shader)
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return false;
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type = video_shader_get_type_from_ext(path_get_extension(path_shader),
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&is_preset);
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if (is_preset)
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{
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conf = config_file_new(path_shader);
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new_path = strdup(path_shader);
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}
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else
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{
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if (video_shader_is_supported(type))
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{
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strlcpy(menu_driver_shader->pass[0].source.path, path_shader,
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sizeof(menu_driver_shader->pass[0].source.path));
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menu_driver_shader->passes = 1;
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}
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else
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{
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char preset_path[PATH_MAX_LENGTH];
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settings_t *settings = config_get_ptr();
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const char *shader_dir =
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*settings->paths.directory_video_shader ?
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settings->paths.directory_video_shader :
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settings->paths.directory_system;
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preset_path[0] = '\0';
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fill_pathname_join(preset_path, shader_dir,
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"menu.glslp", sizeof(preset_path));
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conf = config_file_new(preset_path);
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if (!conf)
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{
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fill_pathname_join(preset_path, shader_dir,
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"menu.cgp", sizeof(preset_path));
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conf = config_file_new(preset_path);
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}
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if (!conf)
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{
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fill_pathname_join(preset_path, shader_dir,
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"menu.slangp", sizeof(preset_path));
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conf = config_file_new(preset_path);
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}
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new_path = strdup(preset_path);
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}
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}
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if (
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!string_is_empty(new_path) && conf &&
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video_shader_read_conf_cgp(conf, menu_driver_shader)
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)
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{
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video_shader_resolve_relative(menu_driver_shader, new_path);
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video_shader_resolve_parameters(conf, menu_driver_shader);
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}
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if (new_path)
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free(new_path);
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if (conf)
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config_file_free(conf);
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return true;
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}
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/**
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* menu_shader_manager_set_preset:
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* @shader : Shader handle.
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* @type : Type of shader.
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* @preset_path : Preset path to load from.
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*
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* Sets shader preset.
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**/
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bool menu_shader_manager_set_preset(void *data,
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unsigned type, const char *preset_path)
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{
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struct video_shader *shader = (struct video_shader*)data;
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config_file_t *conf = NULL;
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bool refresh = false;
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settings_t *settings = config_get_ptr();
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if (!video_driver_set_shader((enum rarch_shader_type)type, preset_path))
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{
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configuration_set_bool(settings, settings->bools.video_shader_enable, false);
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return false;
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}
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/* Makes sure that we use Menu Preset shader on driver reinit.
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* Only do this when the cgp actually works to avoid potential errors. */
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strlcpy(settings->paths.path_shader,
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preset_path ? preset_path : "",
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sizeof(settings->paths.path_shader));
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configuration_set_bool(settings, settings->bools.video_shader_enable, true);
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if (!preset_path || !shader)
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return false;
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/* Load stored Preset into menu on success.
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* Used when a preset is directly loaded.
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* No point in updating when the Preset was
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* created from the menu itself. */
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conf = config_file_new(preset_path);
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if (!conf)
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return false;
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RARCH_LOG("Setting Menu shader: %s.\n", preset_path);
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if (video_shader_read_conf_cgp(conf, shader))
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{
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video_shader_resolve_relative(shader, preset_path);
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video_shader_resolve_parameters(conf, shader);
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}
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config_file_free(conf);
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#ifdef HAVE_MENU
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menu_entries_ctl(MENU_ENTRIES_CTL_SET_REFRESH, &refresh);
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#endif
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return true;
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}
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static const char *shader_get_preset_extension(unsigned type)
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{
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switch (type)
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{
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case RARCH_SHADER_GLSL:
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return file_path_str(FILE_PATH_GLSLP_EXTENSION);
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case RARCH_SHADER_SLANG:
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return file_path_str(FILE_PATH_SLANGP_EXTENSION);
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case RARCH_SHADER_HLSL:
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case RARCH_SHADER_CG:
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return file_path_str(FILE_PATH_CGP_EXTENSION);
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}
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return NULL;
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}
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/**
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* menu_shader_manager_save_preset:
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* @basename : basename of preset
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* @apply : immediately set preset after saving
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*
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* Save a shader preset to disk.
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**/
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bool menu_shader_manager_save_preset(
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const char *basename, bool apply, bool fullpath)
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{
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char buffer[PATH_MAX_LENGTH];
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char preset_path[PATH_MAX_LENGTH];
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char config_directory[PATH_MAX_LENGTH];
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bool ret = false;
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unsigned d, type = RARCH_SHADER_NONE;
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const char *dirs[3] = {0};
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config_file_t *conf = NULL;
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struct video_shader *shader = menu_shader_get();
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config_directory[0] = '\0';
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buffer[0] = '\0';
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preset_path[0] = '\0';
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if (!shader)
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return false;
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type = menu_shader_manager_get_type(shader);
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if (type == RARCH_SHADER_NONE)
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return false;
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if (basename)
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{
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strlcpy(buffer, basename, sizeof(buffer));
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/* Append extension automatically as appropriate. */
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if ( !strstr(basename,
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file_path_str(FILE_PATH_CGP_EXTENSION))
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&& !strstr(basename,
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file_path_str(FILE_PATH_GLSLP_EXTENSION))
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&& !strstr(basename,
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file_path_str(FILE_PATH_SLANGP_EXTENSION)))
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{
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const char *preset_ext = shader_get_preset_extension(type);
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if (!string_is_empty(preset_ext))
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strlcat(buffer, preset_ext, sizeof(buffer));
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}
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}
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else
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{
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char default_preset[PATH_MAX_LENGTH];
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default_preset[0] = '\0';
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if (video_shader_is_supported((enum rarch_shader_type)type))
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{
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const char *config_path = path_get(RARCH_PATH_CONFIG);
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/* In a multi-config setting, we can't have
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* conflicts on menu.cgp/menu.glslp. */
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const char *preset_ext = shader_get_preset_extension(type);
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if (!string_is_empty(preset_ext))
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{
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if (config_path)
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{
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fill_pathname_base_ext(default_preset,
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config_path,
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preset_ext,
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sizeof(default_preset));
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}
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else
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{
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strlcpy(default_preset, "menu",
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sizeof(default_preset));
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strlcat(default_preset,
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preset_ext,
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sizeof(default_preset));
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}
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}
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}
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if (!string_is_empty(default_preset))
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strlcpy(buffer, default_preset, sizeof(buffer));
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}
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if (!fullpath)
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{
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settings_t *settings = config_get_ptr();
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if (!path_is_empty(RARCH_PATH_CONFIG))
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fill_pathname_basedir(
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config_directory,
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path_get(RARCH_PATH_CONFIG),
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sizeof(config_directory));
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dirs[0] = settings->paths.directory_video_shader;
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dirs[1] = settings->paths.directory_menu_config;
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dirs[2] = config_directory;
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}
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conf = (config_file_t*)config_file_new(NULL);
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if (!conf)
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return false;
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video_shader_write_conf_cgp(conf, shader);
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if (fullpath)
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{
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if (!string_is_empty(basename))
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strlcpy(preset_path, buffer, sizeof(preset_path));
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if (config_file_write(conf, preset_path, true))
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{
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RARCH_LOG("Saved shader preset to %s.\n", preset_path);
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if (apply)
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menu_shader_manager_set_preset(NULL, type, preset_path);
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ret = true;
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}
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else
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RARCH_LOG("Failed writing shader preset to %s.\n", preset_path);
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}
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else
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{
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for (d = 0; d < ARRAY_SIZE(dirs); d++)
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{
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if (!*dirs[d])
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continue;
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fill_pathname_join(preset_path, dirs[d],
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buffer, sizeof(preset_path));
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if (config_file_write(conf, preset_path, true))
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{
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RARCH_LOG("Saved shader preset to %s.\n", preset_path);
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if (apply)
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menu_shader_manager_set_preset(NULL, type, preset_path);
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ret = true;
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break;
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}
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else
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RARCH_LOG("Failed writing shader preset to %s.\n", preset_path);
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}
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}
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config_file_free(conf);
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if (ret)
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return true;
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RARCH_ERR("Failed to save shader preset. Make sure config directory"
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" and/or shader dir are writable.\n");
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return false;
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}
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int menu_shader_manager_clear_num_passes(void)
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{
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bool refresh = false;
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struct video_shader *shader = menu_shader_get();
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if (!shader)
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return 0;
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if (shader->passes)
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shader->passes = 0;
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#ifdef HAVE_MENU
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menu_entries_ctl(MENU_ENTRIES_CTL_SET_REFRESH, &refresh);
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#endif
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video_shader_resolve_parameters(NULL, shader);
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return 0;
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}
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int menu_shader_manager_clear_parameter(unsigned i)
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{
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struct video_shader *shader = menu_shader_get();
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struct video_shader_parameter *param = shader ?
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&shader->parameters[i] : NULL;
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if (!param)
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return 0;
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param->current = param->initial;
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param->current = MIN(MAX(param->minimum,
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param->current), param->maximum);
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return 0;
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}
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int menu_shader_manager_clear_pass_filter(unsigned i)
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{
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struct video_shader *shader = menu_shader_get();
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struct video_shader_pass *shader_pass = shader ?
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&shader->pass[i] : NULL;
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if (!shader_pass)
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return -1;
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shader_pass->filter = RARCH_FILTER_UNSPEC;
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return 0;
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}
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void menu_shader_manager_clear_pass_scale(unsigned i)
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{
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struct video_shader *shader = menu_shader_get();
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struct video_shader_pass *shader_pass = shader ?
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&shader->pass[i] : NULL;
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if (!shader_pass)
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return;
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shader_pass->fbo.scale_x = 0;
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shader_pass->fbo.scale_y = 0;
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shader_pass->fbo.valid = false;
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}
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void menu_shader_manager_clear_pass_path(unsigned i)
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{
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struct video_shader *shader = menu_shader_get();
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struct video_shader_pass *shader_pass = shader ?
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&shader->pass[i] : NULL;
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if (shader_pass)
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*shader_pass->source.path = '\0';
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}
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/**
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* menu_shader_manager_get_type:
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* @shader : shader handle
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*
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* Gets type of shader.
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*
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* Returns: type of shader.
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**/
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unsigned menu_shader_manager_get_type(const void *data)
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{
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unsigned type = RARCH_SHADER_NONE;
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const struct video_shader *shader = (const struct video_shader*)data;
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/* All shader types must be the same, or we cannot use it. */
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uint8_t i = 0;
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if (!shader)
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return RARCH_SHADER_NONE;
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for (i = 0; i < shader->passes; i++)
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{
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enum rarch_shader_type pass_type =
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video_shader_parse_type(shader->pass[i].source.path,
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RARCH_SHADER_NONE);
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switch (pass_type)
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{
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case RARCH_SHADER_CG:
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case RARCH_SHADER_GLSL:
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case RARCH_SHADER_SLANG:
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if (type == RARCH_SHADER_NONE)
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type = pass_type;
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else if (type != pass_type)
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return RARCH_SHADER_NONE;
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break;
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default:
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break;
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}
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}
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return type;
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}
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/**
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* menu_shader_manager_apply_changes:
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*
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* Apply shader state changes.
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**/
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void menu_shader_manager_apply_changes(void)
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{
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unsigned shader_type;
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struct video_shader *shader = menu_shader_get();
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if (!shader)
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return;
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shader_type = menu_shader_manager_get_type(shader);
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if (shader->passes && shader_type != RARCH_SHADER_NONE)
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{
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menu_shader_manager_save_preset(NULL, true, false);
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return;
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}
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/* Fall-back */
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shader_type = DEFAULT_SHADER_TYPE;
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if (shader_type == RARCH_SHADER_NONE)
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{
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if (video_shader_is_supported(RARCH_SHADER_GLSL))
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shader_type = RARCH_SHADER_GLSL;
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else if (
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video_shader_is_supported(RARCH_SHADER_CG) ||
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video_shader_is_supported(RARCH_SHADER_HLSL)
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)
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shader_type = RARCH_SHADER_CG;
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else if (video_shader_is_supported(RARCH_SHADER_SLANG))
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shader_type = RARCH_SHADER_SLANG;
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}
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menu_shader_manager_set_preset(NULL, shader_type, NULL);
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}
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