69 lines
2.5 KiB
C
69 lines
2.5 KiB
C
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#ifndef GLSL_EXT_H
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#define GLSL_EXT_H
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#include <stdlib.h>
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#include <stdbool.h>
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struct request_handler {
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const char* name;
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/*
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handler format:
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'i' - signed integer (void* -> int*)
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'f' - float (void* -> float*)
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's' - string (void* -> const char*)
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'b' - bool (void* -> bool*)
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example:
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.fmt = "sii" // takes a string, and then two integers
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.fmt = "ffb" // takes two floats, then a boolean
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*/
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const char* fmt;
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#if defined(__clang__)
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void (^handler)(const char* name, void** args);
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#elif defined(__GNUC__) || defined(__GNUG__)
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void (*handler)(const char* name, void** args);
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#else
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#error "no nested function/block syntax available"
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#endif
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};
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struct glsl_ext_efunc {
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char* name;
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#if defined(__clang__)
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size_t (^call)(void);
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#elif defined(__GNUC__) || defined(__GNUG__)
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size_t (*call)(void);
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#else
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#error "no nested function/block syntax available"
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#endif
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};
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struct glsl_ext {
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char* processed; /* OUT: null terminated processed source */
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size_t p_len; /* OUT: length of processed buffer, excluding null char */
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const char* source; /* IN: raw data passed via ext_process */
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size_t source_len; /* IN: raw source len */
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const char* cd; /* IN: current directory */
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const char* cfd; /* IN: config directory, if NULL it is assumed to cd */
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const char* dd; /* IN: default directory */
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struct rd_bind* binds; /* OPT IN: --pipe binds */
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struct glsl_ext_efunc* efuncs; /* OPT IN: `#expand` binds */
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void** destruct; /* internal */
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size_t destruct_sz; /* internal */
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char** ss_lookup; /* source-string lookup table */
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size_t* ss_len;
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size_t ss_len_s;
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bool ss_own;
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/* IN: NULL (where the last element's 'name' member is NULL) terminated
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array of request handlers */
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struct request_handler* handlers;
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};
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void ext_process(struct glsl_ext* ext, const char* f);
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void ext_free (struct glsl_ext* ext);
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bool ext_parse_color(const char* hex, size_t elem_sz, float** results);
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#endif
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