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add rgb24 color dma

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This commit is contained in:
gemu2015 2021-05-01 09:54:49 +02:00
parent c0d8f40f14
commit 95976a21fc
2 changed files with 67 additions and 2 deletions
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68
lib/lib_display/UDisplay/uDisplay.cpp
View File

@ -20,7 +20,7 @@
#include <Arduino.h>
#include "uDisplay.h"
//#define UDSP_DEBUG
#define UDSP_DEBUG
const uint16_t udisp_colors[]={UDISP_BLACK,UDISP_WHITE,UDISP_RED,UDISP_GREEN,UDISP_BLUE,UDISP_CYAN,UDISP_MAGENTA,\
UDISP_YELLOW,UDISP_NAVY,UDISP_DARKGREEN,UDISP_DARKCYAN,UDISP_MAROON,UDISP_PURPLE,UDISP_OLIVE,\
@ -1100,11 +1100,49 @@ void uDisplay::pushColors(uint16_t *data, uint16_t len, boolean not_swapped) {
}
#endif
} else {
// 9 bit and others
#ifdef ESP32
if ( (col_mode == 18) && (spi_dc >= 0) && (spi_nr <= 2) ) {
uint8_t *line = (uint8_t*)malloc(len * 3);
uint8_t *lp = line;
if (line) {
for (uint32_t cnt = 0; cnt < len; cnt++) {
color = *data++;
color = (color << 8) | (color >> 8);
uint8_t r = (color & 0xF800) >> 11;
uint8_t g = (color & 0x07E0) >> 5;
uint8_t b = color & 0x001F;
r = (r * 255) / 31;
g = (g * 255) / 63;
b = (b * 255) / 31;
*lp++ = r;
*lp++ = g;
*lp++ = b;
}
if (lvgl_param.use_dma) {
pushPixels3DMA(line, len );
} else {
uspi->writeBytes(line, len * 3);
}
free(line);
}
} else {
// 9 bit and others
lvgl_color_swap(data, len);
while (len--) {
WriteColor(*data++);
}
}
#endif // ESP32
#ifdef ESP8266
lvgl_color_swap(data, len);
while (len--) {
WriteColor(*data++);
}
#endif
}
} else {
// called from displaytext, no byte swap, currently no dma here
@ -1993,6 +2031,32 @@ void uDisplay::pushPixelsDMA(uint16_t* image, uint32_t len) {
spiBusyCheck++;
}
/***************************************************************************************
** Function name: pushPixelsDMA
** Description: Push pixels to TFT (len must be less than 32767)
***************************************************************************************/
// This will byte swap the original image if setSwapBytes(true) was called by sketch.
void uDisplay::pushPixels3DMA(uint8_t* image, uint32_t len) {
if ((len == 0) || (!DMA_Enabled)) return;
dmaWait();
esp_err_t ret;
memset(&trans, 0, sizeof(spi_transaction_t));
trans.user = (void *)1;
trans.tx_buffer = image; //finally send the line data
trans.length = len * 24; //Data length, in bits
trans.flags = 0; //SPI_TRANS_USE_TXDATA flag
ret = spi_device_queue_trans(dmaHAL, &trans, portMAX_DELAY);
assert(ret == ESP_OK);
spiBusyCheck++;
}
#endif // ESP32

1
lib/lib_display/UDisplay/uDisplay.h
View File

@ -228,6 +228,7 @@ class uDisplay : public Renderer {
bool dmaBusy(void);
void dmaWait(void);
void pushPixelsDMA(uint16_t* image, uint32_t len);
void pushPixels3DMA(uint8_t* image, uint32_t len);
#endif // ESP32
};