fastled_progmem.h

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#ifndef __INC_FL_PROGMEM_H
#define __INC_FL_PROGMEM_H
 
#include "fl/namespace.h"
 
 
 
 
// This block is used for Doxygen documentation generation,
// so that the Doxygen parser will be able to find the macros
// included without a defined platform
#ifdef FASTLED_DOXYGEN
#define FASTLED_USE_PROGMEM 1
#endif
 
 
 
#if (FASTLED_USE_PROGMEM == 1) || defined(FASTLED_DOXYGEN)
#ifndef FASTLED_INCLUDE_PGMSPACE
#define FASTLED_INCLUDE_PGMSPACE 1
#endif
 
#if FASTLED_INCLUDE_PGMSPACE == 1
#include <avr/pgmspace.h>
#endif
 
#define FL_PROGMEM                PROGMEM
 
 
#define FL_PGM_READ_BYTE_NEAR(x)  (pgm_read_byte_near(x))
#define FL_PGM_READ_WORD_NEAR(x)  (pgm_read_word_near(x))
#define FL_PGM_READ_DWORD_NEAR(x) (pgm_read_dword_near(x))
 
 
// Workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34734
#if __GNUC__ < 4 || (__GNUC__ == 4 && (__GNUC_MINOR__ < 6))
#ifdef FASTLED_AVR
#ifdef PROGMEM
#undef PROGMEM
#define PROGMEM __attribute__((section(".progmem.data")))
#endif
#endif
#endif
 
#else
// If FASTLED_USE_PROGMEM is 0 or undefined,
// we'll use regular memory (RAM) access.
 
//empty PROGMEM simulation
#define FL_PROGMEM
#define FL_PGM_READ_BYTE_NEAR(x)  (*((const  uint8_t*)(x)))
#define FL_PGM_READ_WORD_NEAR(x)  (*((const uint16_t*)(x)))
#define FL_PGM_READ_DWORD_NEAR(x) (*((const uint32_t*)(x)))
 
#endif
 
 
#if defined(FASTLED_ARM) || defined(ESP32) || defined(ESP8266) || defined(FASTLED_DOXYGEN)
#define FL_ALIGN_PROGMEM  __attribute__ ((aligned (4)))
#else
#define FL_ALIGN_PROGMEM
#endif
 
#endif