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TFT kinda correct now - but slow because of bit banging

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geeksville
2020-08-28 15:33:33 -07:00
parent e049eac38a
commit 7f214ffbb0
3 changed files with 20 additions and 10 deletions
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20
src/graphics/TFT.cpp
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@@ -1,25 +1,33 @@
#include "configuration.h"
#ifdef ST7735_CS
#include "TFT.h"
#include "graphics/configs.h"
#include <SPI.h>
#include <TFT_eSPI.h> // Graphics and font library for ST7735 driver chip
TFT_eSPI tft = TFT_eSPI(); // Invoke library, pins defined in User_Setup.h
TFTDisplay::TFTDisplay(uint8_t address, int sda, int scl)
{
setGeometry(
GEOMETRY_128_64); // FIXME - currently we lie and claim 128x64 because I'm not yet sure other resolutions will work
setGeometry(GEOMETRY_128_64); // FIXME - currently we lie and claim 128x64 because I'm not yet sure other resolutions will
// work ie GEOMETRY_RAWMODE
}
// Write the buffer to the display memory
void TFTDisplay::display(void)
{
// FIXME - only draw bits have changed (use backbuf similar to the other displays)
tft.drawBitmap(0, 0, buffer, 128, 64, TFT_YELLOW, TFT_BLACK);
// tft.drawBitmap(0, 0, buffer, 128, 64, TFT_YELLOW, TFT_BLACK);
for (uint8_t y = 0; y < SCREEN_HEIGHT; y++) {
for (uint8_t x = 0; x < SCREEN_WIDTH; x++) {
// get src pixel in the page based ordering the OLED lib uses FIXME, super inefficent
auto b = buffer[x + (y / 8) * SCREEN_WIDTH];
auto isset = b & (1 << (y & 7));
tft.drawPixel(x, y, isset ? TFT_WHITE : TFT_BLACK);
}
}
}
// Send a command to the display (low level function)
@@ -41,7 +49,7 @@ bool TFTDisplay::connect()
tft.init();
tft.setRotation(3); // Orient horizontal and wide underneath the silkscreen name label
tft.fillScreen(TFT_BLUE);
// tft.fillScreen(TFT_BLUE);
// tft.drawRect(0, 0, 40, 10, TFT_PURPLE); // wide rectangle in upper left
return true;