mirror of
https://github.com/libretro/RetroArch.git
synced 2024-11-26 09:41:15 +00:00
341 lines
9.6 KiB
C
341 lines
9.6 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
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* Copyright (C) 2011-2015 - 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 <file/file_path.h>
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#include "menu.h"
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#include "menu_shader.h"
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#include "../configuration.h"
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#include "../runloop.h"
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#include "../settings.h"
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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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void menu_shader_manager_init(menu_handle_t *menu)
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{
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#ifdef HAVE_SHADER_MANAGER
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char preset_path[PATH_MAX_LENGTH];
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const char *ext = NULL;
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struct video_shader *shader = NULL;
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config_file_t *conf = NULL;
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const char *config_path = NULL;
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settings_t *settings = config_get_ptr();
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global_t *global = global_get_ptr();
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if (!menu)
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return;
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shader = (struct video_shader*)menu->shader;
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if (*global->core_specific_config_path
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&& settings->core_specific_config)
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config_path = global->core_specific_config_path;
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else if (*global->config_path)
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config_path = global->config_path;
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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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if (config_path)
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{
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fill_pathname_base(menu->default_glslp, config_path,
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sizeof(menu->default_glslp));
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path_remove_extension(menu->default_glslp);
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strlcat(menu->default_glslp, ".glslp", sizeof(menu->default_glslp));
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fill_pathname_base(menu->default_cgp, config_path,
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sizeof(menu->default_cgp));
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path_remove_extension(menu->default_cgp);
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strlcat(menu->default_cgp, ".cgp", sizeof(menu->default_cgp));
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}
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else
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{
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strlcpy(menu->default_glslp, "menu.glslp", sizeof(menu->default_glslp));
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strlcpy(menu->default_cgp, "menu.cgp", sizeof(menu->default_cgp));
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}
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ext = path_get_extension(settings->video.shader_path);
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if (strcmp(ext, "glslp") == 0 || strcmp(ext, "cgp") == 0)
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{
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conf = config_file_new(settings->video.shader_path);
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if (conf)
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{
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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, settings->video.shader_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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}
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}
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else if (strcmp(ext, "glsl") == 0 || strcmp(ext, "cg") == 0)
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{
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strlcpy(shader->pass[0].source.path, settings->video.shader_path,
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sizeof(shader->pass[0].source.path));
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shader->passes = 1;
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}
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else
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{
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const char *shader_dir = *settings->video.shader_dir ?
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settings->video.shader_dir : settings->system_directory;
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fill_pathname_join(preset_path, shader_dir, "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, "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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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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}
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}
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#endif
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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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void menu_shader_manager_set_preset(struct video_shader *shader,
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unsigned type, const char *preset_path)
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{
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#ifdef HAVE_SHADER_MANAGER
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config_file_t *conf = NULL;
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settings_t *settings = config_get_ptr();
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settings->video.shader_enable = false;
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if (!video_driver_set_shader((enum rarch_shader_type)type, preset_path))
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return;
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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->video.shader_path, preset_path ? preset_path : "",
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sizeof(settings->video.shader_path));
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settings->video.shader_enable = true;
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if (!preset_path)
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return;
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if (!shader)
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return;
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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;
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RARCH_LOG("Setting Menu shader: %s.\n", preset_path ? preset_path : "N/A (stock)");
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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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menu_set_refresh();
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#endif
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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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void menu_shader_manager_save_preset(
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const char *basename, bool apply)
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{
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#ifdef HAVE_SHADER_MANAGER
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char buffer[PATH_MAX_LENGTH], config_directory[PATH_MAX_LENGTH], preset_path[PATH_MAX_LENGTH];
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unsigned d, type = RARCH_SHADER_NONE;
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config_file_t *conf = NULL;
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bool ret = false;
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global_t *global = global_get_ptr();
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settings_t *settings = config_get_ptr();
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menu_handle_t *menu = menu_driver_get_ptr();
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if (!menu)
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{
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RARCH_ERR("Cannot save shader preset, menu handle is not initialized.\n");
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return;
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}
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type = menu_shader_manager_get_type(menu->shader);
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if (type == RARCH_SHADER_NONE)
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return;
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*config_directory = '\0';
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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, ".cgp") && !strstr(basename, ".glslp"))
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{
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if (type == RARCH_SHADER_GLSL)
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strlcat(buffer, ".glslp", sizeof(buffer));
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else if (type == RARCH_SHADER_CG)
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strlcat(buffer, ".cgp", sizeof(buffer));
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}
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}
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else
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{
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const char *conf_path = (type == RARCH_SHADER_GLSL) ?
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menu->default_glslp : menu->default_cgp;
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strlcpy(buffer, conf_path, sizeof(buffer));
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}
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if (*global->config_path)
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fill_pathname_basedir(config_directory,
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global->config_path, sizeof(config_directory));
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const char *dirs[] = {
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settings->video.shader_dir,
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settings->menu_config_directory,
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config_directory,
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};
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if (!(conf = (config_file_t*)config_file_new(NULL)))
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return;
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video_shader_write_conf_cgp(conf, menu->shader);
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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], buffer, sizeof(preset_path));
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if (config_file_write(conf, preset_path))
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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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config_file_free(conf);
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if (!ret)
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RARCH_ERR("Failed to save shader preset. Make sure config directory and/or shader dir are writable.\n");
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#endif
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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 struct video_shader *shader)
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{
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#ifndef HAVE_SHADER_MANAGER
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return RARCH_SHADER_NONE;
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#else
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/* All shader types must be the same, or we cannot use it. */
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unsigned i = 0, type = 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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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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return RARCH_SHADER_NONE;
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}
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}
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return type;
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#endif
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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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#ifdef HAVE_SHADER_MANAGER
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menu_handle_t *menu = menu_driver_get_ptr();
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unsigned shader_type = menu_shader_manager_get_type(menu->shader);
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if (menu->shader->passes
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&& shader_type != RARCH_SHADER_NONE)
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{
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menu_shader_manager_save_preset(NULL, true);
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return;
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}
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/* Fall-back */
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#if defined(HAVE_CG) || defined(HAVE_HLSL) || defined(HAVE_GLSL)
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shader_type = video_shader_parse_type("", DEFAULT_SHADER_TYPE);
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#endif
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if (shader_type == RARCH_SHADER_NONE)
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{
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#if defined(HAVE_GLSL)
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shader_type = RARCH_SHADER_GLSL;
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#elif defined(HAVE_CG) || defined(HAVE_HLSL)
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shader_type = RARCH_SHADER_CG;
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#endif
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}
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menu_shader_manager_set_preset(NULL, shader_type, NULL);
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#endif
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}
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