Michel2/Adafruit-GFX-Library
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woops turns out some SPI displays dont use this format, so make it virtual

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ladyada committed 2018-07-14 16:01:33 -04:00
1 parent f573e032cd
commit cf1e1b0521
2 files changed
+10 -31
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Adafruit_SPITFT.cpp
-27
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@@ -233,33 +233,6 @@ void Adafruit_SPITFT::spiWrite(uint8_t b) {
* Transaction API
* */
/**************************************************************************/
/*!
@brief SPI displays set an address window rectangle for blitting pixels
@param x Top left corner x coordinate
@param y Top left corner x coordinate
@param w Width of window
@param h Height of window
*/
/**************************************************************************/
void Adafruit_SPITFT::setAddrWindow(uint16_t x, uint16_t y, uint16_t w, uint16_t h) {
x += _xstart;
y += _ystart;
uint32_t xa = ((uint32_t)x << 16) | (x+w-1);
uint32_t ya = ((uint32_t)y << 16) | (y+h-1);
//Serial.print("X: "); Serial.println(xa, HEX);
//Serial.print("Y: "); Serial.println(ya, HEX);
writeCommand(xSetCommand); // Column addr set
SPI_WRITE32(xa);
writeCommand(ySetCommand); // Row addr set
SPI_WRITE32(ya);
writeCommand(RAMwriteCommand); // write to RAM
}
/**************************************************************************/
/*!
@brief Begin an SPI transaction & set CS low.
Adafruit_SPITFT.h
+10 -4
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@@ -48,7 +48,16 @@ class Adafruit_SPITFT : public Adafruit_GFX {
void writeFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color);
// Transaction API not used by GFX
void setAddrWindow(uint16_t x, uint16_t y, uint16_t w, uint16_t h);
/*!
@brief SPI displays set an address window rectangle for blitting pixels
@param x Top left corner x coordinate
@param y Top left corner x coordinate
@param w Width of window
@param h Height of window
*/
virtual void setAddrWindow(uint16_t x, uint16_t y, uint16_t w, uint16_t h) = 0;
void writePixel(uint16_t color);
void writePixels(uint16_t * colors, uint32_t len);
void writeColor(uint16_t color, uint32_t len);
@@ -98,9 +107,6 @@ class Adafruit_SPITFT : public Adafruit_GFX {
uint8_t invertOnCommand = 0, ///< SPI command byte to turn on invert
invertOffCommand = 0; ///< SPI command byte to turn off invert
uint8_t ySetCommand, ///< SPI command byte to set the Y address window
xSetCommand, ///< SPI command byte to set the X address window
RAMwriteCommand; ///< SPI command byte to start blitting data to framebuffer RAM
int16_t _xstart = 0; ///< Many displays don't have pixels starting at (0,0) of the internal framebuffer, this is the x offset from 0 to align
int16_t _ystart = 0; ///< Many displays don't have pixels starting at (0,0) of the internal framebuffer, this is the y offset from 0 to align
};