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[mipi_spi] fix partial update bug (#17747)

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Co-authored-by: clyde <2366188+clydebarrow@users.noreply.github.com>
This commit is contained in:
Flautz
2026-07-23 13:55:38 +12:00
committed by Jesse Hills
co-authored by clyde
parent e46bdf9e18
commit f7bf4e9727
1 changed files with 7 additions and 7 deletions
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esphome/components/mipi_spi/mipi_spi.h
+7 -7
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@@ -385,10 +385,10 @@ class MipiSpi : public display::Display,
* @param ptr The pointer to the pixel data
* @param w Width of each line in bytes
* @param h Height of the buffer in rows
* @param pad Padding in bytes after each line
* @param stride Total length of each line in bytes, including any padding
*/
void write_display_data_(const uint8_t *ptr, size_t w, size_t h, size_t pad) {
if (pad == 0) {
void write_display_data_(const uint8_t *ptr, size_t w, size_t h, size_t stride) {
if (stride == w) {
if constexpr (BUS_TYPE == BUS_TYPE_SINGLE || BUS_TYPE == BUS_TYPE_SINGLE_16) {
this->write_array(ptr, w * h);
} else if constexpr (BUS_TYPE == BUS_TYPE_QUAD) {
@@ -405,7 +405,7 @@ class MipiSpi : public display::Display,
} else if constexpr (BUS_TYPE == BUS_TYPE_OCTAL) {
this->write_cmd_addr_data(0, 0, 0, 0, ptr, w, 8);
}
ptr += w + pad;
ptr += stride;
}
}
}
@@ -423,7 +423,7 @@ class MipiSpi : public display::Display,
ptr += y_offset * (x_offset + w + x_pad) + x_offset;
if constexpr (BUFFERPIXEL == DISPLAYPIXEL) {
this->write_display_data_(reinterpret_cast<const uint8_t *>(ptr), w * sizeof(BUFFERTYPE), h,
x_pad * sizeof(BUFFERTYPE));
(x_offset + w + x_pad) * sizeof(BUFFERTYPE));
} else {
// type conversion required, do it in chunks
uint8_t dbuffer[DISPLAYPIXEL * 48];
@@ -459,14 +459,14 @@ class MipiSpi : public display::Display,
}
// buffer full? Flush.
if (dptr == dbuffer + sizeof(dbuffer)) {
this->write_display_data_(dbuffer, sizeof(dbuffer), 1, 0);
this->write_display_data_(dbuffer, sizeof(dbuffer), 1, sizeof(dbuffer));
dptr = dbuffer;
}
}
}
// flush any remaining data
if (dptr != dbuffer) {
this->write_display_data_(dbuffer, dptr - dbuffer, 1, 0);
this->write_display_data_(dbuffer, dptr - dbuffer, 1, dptr - dbuffer);
}
}
this->disable();