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Merge pull request #68 from markwal/master
Make custom fonts work on ESP8266 as well
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commit
93dde8b70a
13
Adafruit_GFX.cpp
Normal file → Executable file
13
Adafruit_GFX.cpp
Normal file → Executable file
@ -35,11 +35,14 @@ POSSIBILITY OF SUCH DAMAGE.
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#include "glcdfont.c"
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#ifdef __AVR__
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#include <avr/pgmspace.h>
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#define pgm_read_pointer(addr) ((void *)pgm_read_word(addr))
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#elif defined(ESP8266)
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#include <pgmspace.h>
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#define pgm_read_pointer(addr) ((void *)pgm_read_dword(addr))
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#else
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#define pgm_read_byte(addr) (*(const unsigned char *)(addr))
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#define pgm_read_word(addr) (*(const unsigned short *)(addr))
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#define pgm_read_pointer(addr) ((void *)pgm_read_word(addr))
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#endif
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#ifndef min
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@ -474,7 +477,7 @@ void Adafruit_GFX::write(uint8_t c) {
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uint8_t first = pgm_read_byte(&gfxFont->first);
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if((c >= first) && (c <= (uint8_t)pgm_read_byte(&gfxFont->last))) {
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uint8_t c2 = c - pgm_read_byte(&gfxFont->first);
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GFXglyph *glyph = &(((GFXglyph *)pgm_read_word(&gfxFont->glyph))[c2]);
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GFXglyph *glyph = &(((GFXglyph *)pgm_read_pointer(&gfxFont->glyph))[c2]);
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uint8_t w = pgm_read_byte(&glyph->width),
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h = pgm_read_byte(&glyph->height);
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if((w > 0) && (h > 0)) { // Is there an associated bitmap?
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@ -533,8 +536,8 @@ void Adafruit_GFX::drawChar(int16_t x, int16_t y, unsigned char c,
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// directly with 'bad' characters of font may cause mayhem!
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c -= pgm_read_byte(&gfxFont->first);
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GFXglyph *glyph = &(((GFXglyph *)pgm_read_word(&gfxFont->glyph))[c]);
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uint8_t *bitmap = (uint8_t *)pgm_read_word(&gfxFont->bitmap);
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GFXglyph *glyph = &(((GFXglyph *)pgm_read_pointer(&gfxFont->glyph))[c]);
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uint8_t *bitmap = (uint8_t *)pgm_read_pointer(&gfxFont->bitmap);
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uint16_t bo = pgm_read_word(&glyph->bitmapOffset);
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uint8_t w = pgm_read_byte(&glyph->width),
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@ -690,7 +693,7 @@ void Adafruit_GFX::getTextBounds(char *str, int16_t x, int16_t y,
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if(c != '\r') { // Not a carriage return, is normal char
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if((c >= first) && (c <= last)) { // Char present in current font
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c -= first;
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glyph = &(((GFXglyph *)pgm_read_word(&gfxFont->glyph))[c]);
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glyph = &(((GFXglyph *)pgm_read_pointer(&gfxFont->glyph))[c]);
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gw = pgm_read_byte(&glyph->width);
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gh = pgm_read_byte(&glyph->height);
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xa = pgm_read_byte(&glyph->xAdvance);
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@ -779,7 +782,7 @@ void Adafruit_GFX::getTextBounds(const __FlashStringHelper *str,
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if(c != '\r') { // Not a carriage return, is normal char
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if((c >= first) && (c <= last)) { // Char present in current font
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c -= first;
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glyph = &(((GFXglyph *)pgm_read_word(&gfxFont->glyph))[c]);
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glyph = &(((GFXglyph *)pgm_read_pointer(&gfxFont->glyph))[c]);
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gw = pgm_read_byte(&glyph->width);
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gh = pgm_read_byte(&glyph->height);
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xa = pgm_read_byte(&glyph->xAdvance);
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