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Implement transaction based drawing

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With using transactions to draw, we save huge amount of time in pin
changing and SPI setup. This new model, together with the updated
ILI9341 lib give a much better performance.
This commit is contained in:
me-no-dev 2017-02-23 03:11:09 +02:00
parent dc40877a22
commit 4290f0b161
2 changed files with 840 additions and 729 deletions
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1542
Adafruit_GFX.cpp
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27
Adafruit_GFX.h Normal file → Executable file
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@ -7,7 +7,6 @@
#else
#include "WProgram.h"
#endif
#include "gfxfont.h"
class Adafruit_GFX : public Print {
@ -19,16 +18,35 @@ class Adafruit_GFX : public Print {
// This MUST be defined by the subclass:
virtual void drawPixel(int16_t x, int16_t y, uint16_t color) = 0;
// TRANSACTION API / CORE DRAW API
// These MAY be overridden by the subclass to provide device-specific
// optimized code. Otherwise 'generic' versions are used.
virtual void startWrite(void);
virtual void writePixel(int16_t x, int16_t y, uint16_t color);
virtual void writeFillRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color);
virtual void writeFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color);
virtual void writeFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color);
virtual void writeLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1, uint16_t color);
virtual void endWrite(void);
// CONTROL API
// These MAY be overridden by the subclass to provide device-specific
// optimized code. Otherwise 'generic' versions are used.
virtual void setRotation(uint8_t r);
virtual void invertDisplay(boolean i);
// BASIC DRAW API
// These MAY be overridden by the subclass to provide device-specific
// optimized code. Otherwise 'generic' versions are used.
virtual void
drawLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1, uint16_t color),
// It's good to implement those, even if using transaction API
drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color),
drawFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color),
drawRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color),
fillRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color),
fillScreen(uint16_t color),
invertDisplay(boolean i);
// Optional and probably not necessary to change
drawLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1, uint16_t color),
drawRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color);
// These exist only with Adafruit_GFX (no subclass overrides)
void
@ -63,7 +81,6 @@ class Adafruit_GFX : public Print {
setTextColor(uint16_t c, uint16_t bg),
setTextSize(uint8_t s),
setTextWrap(boolean w),
setRotation(uint8_t r),
cp437(boolean x=true),
setFont(const GFXfont *f = NULL),
getTextBounds(char *string, int16_t x, int16_t y,