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Code Issues Releases Activity

Add SSD1306 SPI support

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This commit is contained in:
Theo Arends
2026-09-07 16:05:14 +02:00
parent 76eafebb51
commit 7e51b9e87d
1 changed files with 22 additions and 1 deletions
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lib/lib_display/UDisplay/src/uDisplay_SPI_panel.cpp
+22 -1
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@@ -32,6 +32,9 @@ SPIPanel::~SPIPanel() {
// ===== UniversalPanel Interface Implementation =====
bool SPIPanel::drawPixel(int16_t x, int16_t y, uint16_t color) {
// Only handle direct SPI drawPixel for color displays without framebuffer
if (fb_buffer && cfg.bpp == 1) return false;
// From original uDisplay::drawPixel - only handle direct SPI drawing for color TFTs
if ((x < 0) || (x >= width) || (y < 0) || (y >= height)) return true;
@@ -65,6 +68,9 @@ bool SPIPanel::drawPixel(int16_t x, int16_t y, uint16_t color) {
}
bool SPIPanel::fillRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color) {
// Only handle direct SPI fillRect for color displays without framebuffer
if (fb_buffer && cfg.bpp == 1) return false;
// From original uDisplay::fillRect
if((x >= width) || (y >= height)) return true;
if((x + w - 1) >= width) w = width - x;
@@ -108,6 +114,9 @@ bool SPIPanel::fillRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t col
}
bool SPIPanel::pushColors(uint16_t *data, uint32_t len, bool not_swapped) {
// Only handle direct SPI pushColors for color displays without framebuffer
if (fb_buffer && cfg.bpp == 1) return false;
// Only handle direct rendering for color displays
if (cfg.bpp < 16) {
return false;
@@ -211,6 +220,9 @@ bool SPIPanel::setAddrWindow(int16_t x0, int16_t y0, int16_t x1, int16_t y1) {
return false;
}
// Only handle direct SPI setAddrWindow for color displays without framebuffer
if (fb_buffer && cfg.bpp == 1) return false;
// From original uDisplay::setAddrWindow
window_x0 = x0;
window_y0 = y0;
@@ -281,11 +293,17 @@ void SPIPanel::setAddrWindow_internal(uint16_t x, uint16_t y, uint16_t w, uint16
}
bool SPIPanel::drawFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color) {
// Only handle direct SPI drawFastHLine for color displays without framebuffer
if (fb_buffer && cfg.bpp == 1) return false;
// From original uDisplay::drawFastHLine
return fillRect(x, y, w, 1, color);
}
bool SPIPanel::drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color) {
// Only handle direct SPI drawFastVLine for color displays without framebuffer
if (fb_buffer && cfg.bpp == 1) return false;
// From original uDisplay::drawFastVLine
return fillRect(x, y, 1, h, color);
}
@@ -327,6 +345,9 @@ bool SPIPanel::invertDisplay(bool invert) {
}
bool SPIPanel::setRotation(uint8_t rot) {
// Only handle direct SPI rotate for color displays without framebuffer
if (fb_buffer && cfg.bpp == 1) return false;
// From original uDisplay::setRotation
rotation = rot & 3;
spi->beginTransaction();
@@ -373,7 +394,7 @@ bool SPIPanel::updateFrame() {
uint8_t ys = height >> 3;
uint8_t xs = width >> 3;
uint8_t m_row = cfg.cmd_set_addr_y; // saw_2 in original
uint8_t m_col = 0; // i2c_col_start in original
uint8_t m_col = cfg.cmd_set_addr_x; // i2c_col_start in original
uint16_t p = 0;
uint8_t i, j, k = 0;