/* RetroArch - A frontend for libretro. * Copyright (C) 2010-2014 - Hans-Kristian Arntzen * Copyright (C) 2011-2015 - Daniel De Matteis * * 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 . */ #ifndef __VIDEO_SHADER_PARSE_H #define __VIDEO_SHADER_PARSE_H #include #include #include "video_state_tracker.h" #include #ifdef __cplusplus extern "C" { #endif #ifndef GFX_MAX_SHADERS #define GFX_MAX_SHADERS 16 #endif #ifndef GFX_MAX_TEXTURES #define GFX_MAX_TEXTURES 8 #endif #ifndef GFX_MAX_VARIABLES #define GFX_MAX_VARIABLES 64 #endif #ifndef GFX_MAX_PARAMETERS #define GFX_MAX_PARAMETERS 64 #endif enum rarch_shader_type { RARCH_SHADER_NONE = 0, RARCH_SHADER_CG, RARCH_SHADER_HLSL, RARCH_SHADER_GLSL }; enum gfx_scale_type { RARCH_SCALE_INPUT = 0, RARCH_SCALE_ABSOLUTE, RARCH_SCALE_VIEWPORT }; enum { RARCH_FILTER_UNSPEC = 0, RARCH_FILTER_LINEAR, RARCH_FILTER_NEAREST }; enum gfx_wrap_type { RARCH_WRAP_BORDER = 0, /* Kinda deprecated, but keep as default. Will be translated to EDGE in GLES. */ RARCH_WRAP_DEFAULT = RARCH_WRAP_BORDER, RARCH_WRAP_EDGE, RARCH_WRAP_REPEAT, RARCH_WRAP_MIRRORED_REPEAT }; struct gfx_fbo_scale { enum gfx_scale_type type_x; enum gfx_scale_type type_y; float scale_x; float scale_y; unsigned abs_x; unsigned abs_y; bool fp_fbo; bool srgb_fbo; bool valid; }; struct video_shader_parameter { char id[64]; char desc[64]; float current; float minimum; float initial; float maximum; float step; }; struct video_shader_pass { struct { char path[PATH_MAX_LENGTH]; struct { char *vertex; /* Dynamically allocated. Must be free'd. */ char *fragment; /* Dynamically allocated. Must be free'd. */ } string; } source; char alias[64]; struct gfx_fbo_scale fbo; unsigned filter; enum gfx_wrap_type wrap; unsigned frame_count_mod; bool mipmap; }; struct video_shader_lut { char id[64]; char path[PATH_MAX_LENGTH]; unsigned filter; enum gfx_wrap_type wrap; bool mipmap; }; /* This is pretty big, shouldn't be put on the stack. * Avoid lots of allocation for convenience. */ struct video_shader { enum rarch_shader_type type; bool modern; /* Only used for XML shaders. */ char prefix[64]; unsigned passes; struct video_shader_pass pass[GFX_MAX_SHADERS]; unsigned luts; struct video_shader_lut lut[GFX_MAX_TEXTURES]; struct video_shader_parameter parameters[GFX_MAX_PARAMETERS]; unsigned num_parameters; unsigned variables; struct state_tracker_uniform_info variable[GFX_MAX_VARIABLES]; char script_path[PATH_MAX_LENGTH]; char *script; /* Dynamically allocated. Must be free'd. Only used by XML. */ char script_class[512]; }; /** * video_shader_read_conf_cgp: * @conf : Preset file to read from. * @shader : Shader passes handle. * * Loads preset file and all associated state (passes, * textures, imports, etc). * * Returns: true (1) if successful, otherwise false (0). **/ bool video_shader_read_conf_cgp(config_file_t *conf, struct video_shader *shader); /** * video_shader_write_conf_cgp: * @conf : Preset file to read from. * @shader : Shader passes handle. * * Saves preset and all associated state (passes, * textures, imports, etc) to disk. **/ void video_shader_write_conf_cgp(config_file_t *conf, struct video_shader *shader); /** * video_shader_resolve_relative: * @shader : Shader pass handle. * @ref_path : Relative shader path. * * Resolves relative shader path (@ref_path) into absolute * shader paths. **/ void video_shader_resolve_relative(struct video_shader *shader, const char *ref_path); /** * video_shader_resolve_parameters: * @conf : Preset file to read from. * @shader : Shader passes handle. * * Resolves all shader parameters belonging to shaders. * * Returns: true (1) if successful, otherwise false (0). **/ bool video_shader_resolve_parameters(config_file_t *conf, struct video_shader *shader); /** * video_shader_parse_type: * @path : Shader path. * @fallback : Fallback shader type in case no * type could be found. * * Parses type of shader. * * Returns: value of shader type on success, otherwise will return * user-supplied @fallback value. **/ enum rarch_shader_type video_shader_parse_type(const char *path, enum rarch_shader_type fallback); #ifdef __cplusplus } #endif #endif