error: not declared but actually is

Using Arduino Programming Questions
1

hi guys

ive got a problem with a library that was working. Its a gaming library for esp32 that kurte helped with on the buffer and that's kind of the problem. in the protected part of the code you get this....

#ifdef ENABLE_Grafx_FRAMEBUFFER
    // Add support for optional frame buffer
    uint16_t	*_pfbtft;						// Optional Frame buffer 
    uint16_t	_fbtft1_lines;					// How many lines of the data is held in first allocation
    uint16_t	*_pfbtft2;						// ON ESP32, may not be able to allocate memory in one chunk.
    uint8_t		_use_fbtft;						// Are we in frame buffer mode?

    #endif

	void setAddr(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1)
	  __attribute__((always_inline)) {
		writecommand_cont(Grafx_CASET); // Column addr set
		writedata16_cont(x0);   // XSTART
		writedata16_cont(x1);   // XEND
		writecommand_cont(Grafx_PASET); // Row addr set
		writedata16_cont(y0);   // YSTART
		writedata16_cont(y1);   // YEND
	}
	void beginSPITransaction(uint32_t clock = Grafx_SPICLOCK) __attribute__((always_inline)) {
		SPI.beginTransaction(SPISettings(clock, MSBFIRST, SPI_MODE0));
		if (_csport)
			*_csport  &= ~_cspinmask;
	}
	void endSPITransaction() __attribute__((always_inline)) {
		if (_csport)
			*_csport |= _cspinmask;
		SPI.endTransaction();
	}

/// ESP STUFF  ////////////////////////////////////////////////////////////////////////this function
	uint16_t *mapYtoFBPtr(uint16_t y) __attribute__((always_inline)) {
		if (y < _fbtft1_lines)
			return &_pfbtft[y*_width];
		else 
			return &_pfbtft2[(y-_fbtft1_lines)*_width];
	}

it keeps saying that the pfbt stuff hasn't been declared in the function mapytofbptr(), even though are declared previously in the code.

Arduino: 1.8.2 (Windows 10), TD: 1.36, Board: "Adafruit ESP32 Feather, 80MHz, 921600, None"

Build options changed, rebuilding all
In file included from C:\Users\Duhjoker\Documents\PokeDune_esp\PokeDune_esp.ino:5:0:

C:\Users\Duhjoker\Documents\Arduino\libraries\GameRIot_ESP/Grafx_esp.h: In member function 'uint16_t* Grafx_esp::mapYtoFBPtr(uint16_t)':

C:\Users\Duhjoker\Documents\Arduino\libraries\GameRIot_ESP/Grafx_esp.h:572:11: error: '_fbtft1_lines' was not declared in this scope

   if (y < _fbtft1_lines)

           ^

C:\Users\Duhjoker\Documents\Arduino\libraries\GameRIot_ESP/Grafx_esp.h:573:12: error: '_pfbtft' was not declared in this scope

    return &_pfbtft[y*_width];

            ^

C:\Users\Duhjoker\Documents\Arduino\libraries\GameRIot_ESP/Grafx_esp.h:575:12: error: '_pfbtft2' was not declared in this scope

    return &_pfbtft2[(y-_fbtft1_lines)*_width];

            ^
2

So where is ENABLE_Grafx_FRAMEBUFFER defined? Without it being defined "support for optional frame buffer" will not be compiled in.

3

Not having it defined was one problem. Upon further investigation, I found that had some added Teensy board defines which was confusing the IDE trying to compile esp32 with teensy boards. LOL.

4