Fix #1667

Processors/TFT_eSPI_ESP32.h

@@ -374,7 +374,7 @@ SPI3_HOST = 2
                             GPIO.out_w1tc = clr_mask; GPIO.out_w1ts = set_mask((uint8_t) (((C) & 0x001F)<< 3)); WR_H
 
     // 18 bit color write with swapped bytes
-    #define tft_Write_16S(C) uint16_t Cswap = ((C) >>8 | (C) << 8); tft_Write_16(Cswap)
+    #define tft_Write_16S(C) Cswap = ((C) >>8 | (C) << 8); tft_Write_16(Cswap)
 
   #else
 

Processors/TFT_eSPI_STM32.h

@@ -421,7 +421,6 @@
     #if defined (SSD1963_DRIVER)
 
       // Write 18 bit color to TFT (untested)
-    uint8_t r6, g6, b6;
       #define tft_Write_16(C)  r6 = (((C) & 0xF800)>> 8); g6 = (((C) & 0x07E0)>> 3); b6 = (((C) & 0x001F)<< 3); \
                                GPIOA->BSRR = D0_BSR_MASK(r6) | D2_BSR_MASK(r6) | D7_BSR_MASK(r6); \
                                WR_L; \
@@ -440,10 +439,9 @@
                                WR_STB // Need to slow down strobe
 
       // 18 bit color write with swapped bytes
-    #define tft_Write_16S(C) uint16_t Cswap = ((C) >>8 | (C) << 8); tft_Write_16(Cswap)
+      #define tft_Write_16S(C) Cswap = ((C) >>8 | (C) << 8); tft_Write_16(Cswap)
 
     #else
- 
       // Write 16 bits to TFT
       #define tft_Write_16(C)  GPIOA->BSRR = D8_BSR_MASK(C) | D10_BSR_MASK(C) | D15_BSR_MASK(C); \
                                WR_L; \
@@ -564,7 +562,6 @@
       #if defined (SSD1963_DRIVER)
 
         // Write 18 bit color to TFT (untested)
-    uint8_t r6, g6, b6;
         #define tft_Write_16(C)  r6 = (((C) & 0xF800)>> 8); g6 = (((C) & 0x07E0)>> 3); b6 = (((C) & 0x001F)<< 3); \
                                  GPIOF->BSRR = D0_BSR_MASK(r6) | D2_BSR_MASK(r6) | D4_BSR_MASK(r6) | D7_BSR_MASK(r6); \
                                  WR_L; \
@@ -583,7 +580,7 @@
                                  WR_STB // Need to slow down strobe
 
         // 18 bit color write with swapped bytes
-    #define tft_Write_16S(C) uint16_t Cswap = ((C) >>8 | (C) << 8); tft_Write_16(Cswap)
+        #define tft_Write_16S(C) Cswap = ((C) >>8 | (C) << 8); tft_Write_16(Cswap)
 
       #else
 
@@ -747,14 +744,14 @@
       #if defined (SSD1963_DRIVER)
 
         // Write 18 bit color to TFT (untested)
-        uint8_t r6, g6, b6;
+
         #define tft_Write_16(C)  r6 = (((C) & 0xF800)>> 8); g6 = (((C) & 0x07E0)>> 3); b6 = (((C) & 0x001F)<< 3); \
                              GPIOX->BSRR = (0x00FF0000 | (uint8_t)(r6)); WR_L; WR_STB; \
                              GPIOX->BSRR = (0x00FF0000 | (uint8_t)(g6)); WR_L; WR_STB; \
                              GPIOX->BSRR = (0x00FF0000 | (uint8_t)(b6)); WR_L; WR_STB
 
         // 18 bit color write with swapped bytes
-        #define tft_Write_16S(C) uint16_t Cswap = ((C) >>8 | (C) << 8); tft_Write_16(Cswap)
+        #define tft_Write_16S(C) Cswap = ((C) >>8 | (C) << 8); tft_Write_16(Cswap)
 
       #else
 
@@ -861,7 +858,6 @@
       #if defined (SSD1963_DRIVER)
 
         // Write 18 bit color to TFT (untested)
-    uint8_t r6, g6, b6;
         #define tft_Write_16(C)  r6 = (((C) & 0xF800)>> 8); g6 = (((C) & 0x07E0)>> 3); b6 = (((C) & 0x001F)<< 3); \
                                  D0_PIN_PORT->BSRR = D8_BSR_MASK(r6);  \
                                  D1_PIN_PORT->BSRR = D9_BSR_MASK(r6);  \
@@ -895,7 +891,7 @@
                                  WR_STB
 
         // 18 bit color write with swapped bytes
-    #define tft_Write_16S(C) uint16_t Cswap = ((C) >>8 | (C) << 8); tft_Write_16(Cswap)
+        #define tft_Write_16S(C) Cswap = ((C) >>8 | (C) << 8); tft_Write_16(Cswap)
 
       #else
 

TFT_eSPI.h

@@ -16,7 +16,7 @@
 #ifndef _TFT_eSPIH_
 #define _TFT_eSPIH_
 
-#define TFT_ESPI_VERSION "2.4.41"
+#define TFT_ESPI_VERSION "2.4.42"
 
 // Bit level feature flags
 // Bit 0 set: viewport capability
@@ -846,6 +846,11 @@ class TFT_eSPI : public Print { friend class TFT_eSprite; // Sprite class has ac
 
   uint32_t _lastColor; // Buffered value of last colour used
 
+#if defined (SSD1963_DRIVER) 
+  uint16_t Cswap;      // Swap buffer for SSD1963
+  uint8_t r6, g6, b6;  // RGB buffer for SSD1963
+#endif
+
 #ifdef LOAD_GFXFF
   GFXfont  *gfxFont;
 #endif

library.json

 {
   "name": "TFT_eSPI",
-  "version": "2.4.41",
+  "version": "2.4.42",
   "keywords": "Arduino, tft, ePaper, display, Pico, RP2040, STM32, ESP8266, NodeMCU, ESP32, M5Stack, ILI9341, ST7735, ILI9163, S6D02A1, ILI9481, ILI9486, ILI9488, ST7789, RM68140, SSD1351, SSD1963, ILI9225, HX8357D",
   "description": "A TFT and ePaper SPI graphics library with optimisation for Raspberry Pi Pico, ESP8266, ESP32 and STM32",
   "repository":

library.properties

 name=TFT_eSPI
-version=2.4.41
+version=2.4.42
 author=Bodmer
 maintainer=Bodmer
 sentence=TFT graphics library for Arduino processors with performance optimisation for RP2040, STM32, ESP8266 and ESP32