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-rw-r--r--shared-bindings/displayio/Display.c16
-rw-r--r--shared-bindings/displayio/Display.h5
-rw-r--r--shared-module/displayio/Display.c27
-rw-r--r--shared-module/displayio/Palette.h2
-rw-r--r--shared-module/displayio/TileGrid.c6
-rw-r--r--shared-module/displayio/__init__.c48
-rw-r--r--supervisor/shared/display.c3
7 files changed, 66 insertions, 41 deletions
diff --git a/shared-bindings/displayio/Display.c b/shared-bindings/displayio/Display.c
index 361a37ece..9cb4d6e74 100644
--- a/shared-bindings/displayio/Display.c
+++ b/shared-bindings/displayio/Display.c
@@ -51,7 +51,7 @@
//| Most people should not use this class directly. Use a specific display driver instead that will
//| contain the initialization sequence at minimum.
//|
-//| .. class:: Display(display_bus, init_sequence, *, width, height, colstart=0, rowstart=0, rotation=0, color_depth=16, grayscale=False, pixels_in_byte_share_row=True, set_column_command=0x2a, set_row_command=0x2b, write_ram_command=0x2c, set_vertical_scroll=0, backlight_pin=None, brightness_command=None, brightness=1.0, auto_brightness=False, single_byte_bounds=False, data_as_commands=False)
+//| .. class:: Display(display_bus, init_sequence, *, width, height, colstart=0, rowstart=0, rotation=0, color_depth=16, grayscale=False, pixels_in_byte_share_row=True, bytes_per_cell=1, reverse_pixels_in_byte=False, set_column_command=0x2a, set_row_command=0x2b, write_ram_command=0x2c, set_vertical_scroll=0, backlight_pin=None, brightness_command=None, brightness=1.0, auto_brightness=False, single_byte_bounds=False, data_as_commands=False)
//|
//| Create a Display object on the given display bus (`displayio.FourWire` or `displayio.ParallelBus`).
//|
@@ -90,6 +90,8 @@
//| support 18 bit but 16 is easier to transmit. The last bit is extrapolated.)
//| :param bool grayscale: True if the display only shows a single color.
//| :param bool pixels_in_byte_share_row: True when pixels are less than a byte and a byte includes pixels from the same row of the display. When False, pixels share a column.
+//| :param int bytes_per_cell: Number of bytes per addressable memory location when color_depth < 8. When greater than one, bytes share a row or column according to pixels_in_byte_share_row.
+//| :param bool reverse_pixels_in_byte: Reverses the pixel order within each byte when color_depth < 8. Does not apply across multiple bytes even if there is more than one byte per cell (bytes_per_cell.)
//| :param int set_column_command: Command used to set the start and end columns to update
//| :param int set_row_command: Command used so set the start and end rows to update
//| :param int write_ram_command: Command used to write pixels values into the update region. Ignored if data_as_commands is set.
@@ -102,7 +104,7 @@
//| :param bool data_as_commands: Treat all init and boundary data as SPI commands. Certain displays require this.
//|
STATIC mp_obj_t displayio_display_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
- enum { ARG_display_bus, ARG_init_sequence, ARG_width, ARG_height, ARG_colstart, ARG_rowstart, ARG_rotation, ARG_color_depth, ARG_grayscale, ARG_pixels_in_byte_share_row, ARG_set_column_command, ARG_set_row_command, ARG_write_ram_command, ARG_set_vertical_scroll, ARG_backlight_pin, ARG_brightness_command, ARG_brightness, ARG_auto_brightness, ARG_single_byte_bounds, ARG_data_as_commands };
+ enum { ARG_display_bus, ARG_init_sequence, ARG_width, ARG_height, ARG_colstart, ARG_rowstart, ARG_rotation, ARG_color_depth, ARG_grayscale, ARG_pixels_in_byte_share_row, ARG_bytes_per_cell, ARG_reverse_pixels_in_byte, ARG_set_column_command, ARG_set_row_command, ARG_write_ram_command, ARG_set_vertical_scroll, ARG_backlight_pin, ARG_brightness_command, ARG_brightness, ARG_auto_brightness, ARG_single_byte_bounds, ARG_data_as_commands };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_display_bus, MP_ARG_REQUIRED | MP_ARG_OBJ },
{ MP_QSTR_init_sequence, MP_ARG_REQUIRED | MP_ARG_OBJ },
@@ -114,6 +116,8 @@ STATIC mp_obj_t displayio_display_make_new(const mp_obj_type_t *type, size_t n_a
{ MP_QSTR_color_depth, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 16} },
{ MP_QSTR_grayscale, MP_ARG_BOOL | MP_ARG_KW_ONLY, {.u_bool = false} },
{ MP_QSTR_pixels_in_byte_share_row, MP_ARG_BOOL | MP_ARG_KW_ONLY, {.u_bool = true} },
+ { MP_QSTR_bytes_per_cell, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 1} },
+ { MP_QSTR_reverse_pixels_in_byte, MP_ARG_BOOL | MP_ARG_KW_ONLY, {.u_bool = false} },
{ MP_QSTR_set_column_command, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 0x2a} },
{ MP_QSTR_set_row_command, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 0x2b} },
{ MP_QSTR_write_ram_command, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 0x2c} },
@@ -163,7 +167,8 @@ STATIC mp_obj_t displayio_display_make_new(const mp_obj_type_t *type, size_t n_a
common_hal_displayio_display_construct(
self,
display_bus, args[ARG_width].u_int, args[ARG_height].u_int, args[ARG_colstart].u_int, args[ARG_rowstart].u_int, rotation,
- args[ARG_color_depth].u_int, args[ARG_grayscale].u_bool, args[ARG_pixels_in_byte_share_row].u_bool,
+ args[ARG_color_depth].u_int, args[ARG_grayscale].u_bool,
+ args[ARG_pixels_in_byte_share_row].u_bool, args[ARG_bytes_per_cell].u_bool, args[ARG_reverse_pixels_in_byte].u_bool,
args[ARG_set_column_command].u_int, args[ARG_set_row_command].u_int,
args[ARG_write_ram_command].u_int,
args[ARG_set_vertical_scroll].u_int,
@@ -199,7 +204,10 @@ STATIC mp_obj_t displayio_display_obj_show(mp_obj_t self_in, mp_obj_t group_in)
group = MP_OBJ_TO_PTR(native_group(group_in));
}
- common_hal_displayio_display_show(self, group);
+ bool ok = common_hal_displayio_display_show(self, group);
+ if (!ok) {
+ mp_raise_ValueError(translate("Group already used"));
+ }
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_2(displayio_display_show_obj, displayio_display_obj_show);
diff --git a/shared-bindings/displayio/Display.h b/shared-bindings/displayio/Display.h
index e765e6f25..a8938bbcd 100644
--- a/shared-bindings/displayio/Display.h
+++ b/shared-bindings/displayio/Display.h
@@ -40,7 +40,8 @@ extern const mp_obj_type_t displayio_display_type;
void common_hal_displayio_display_construct(displayio_display_obj_t* self,
mp_obj_t bus, uint16_t width, uint16_t height,
- int16_t colstart, int16_t rowstart, uint16_t rotation, uint16_t color_depth, bool grayscale, bool pixels_in_byte_share_row,
+ int16_t colstart, int16_t rowstart, uint16_t rotation, uint16_t color_depth, bool grayscale,
+ bool pixels_in_byte_share_row, uint8_t bytes_per_cell, bool reverse_pixels_in_byte,
uint8_t set_column_command, uint8_t set_row_command, uint8_t write_ram_command, uint8_t set_vertical_scroll,
uint8_t* init_sequence, uint16_t init_sequence_len, const mcu_pin_obj_t* backlight_pin, uint16_t brightness_command,
mp_float_t brightness, bool auto_brightness,
@@ -48,7 +49,7 @@ void common_hal_displayio_display_construct(displayio_display_obj_t* self,
int32_t common_hal_displayio_display_wait_for_frame(displayio_display_obj_t* self);
-void common_hal_displayio_display_show(displayio_display_obj_t* self, displayio_group_t* root_group);
+bool common_hal_displayio_display_show(displayio_display_obj_t* self, displayio_group_t* root_group);
void common_hal_displayio_display_refresh_soon(displayio_display_obj_t* self);
diff --git a/shared-module/displayio/Display.c b/shared-module/displayio/Display.c
index a8515b9e5..51c6f292a 100644
--- a/shared-module/displayio/Display.c
+++ b/shared-module/displayio/Display.c
@@ -44,7 +44,7 @@
void common_hal_displayio_display_construct(displayio_display_obj_t* self,
mp_obj_t bus, uint16_t width, uint16_t height, int16_t colstart, int16_t rowstart, uint16_t rotation,
- uint16_t color_depth, bool grayscale, bool pixels_in_byte_share_row,
+ uint16_t color_depth, bool grayscale, bool pixels_in_byte_share_row, uint8_t bytes_per_cell, bool reverse_pixels_in_byte,
uint8_t set_column_command, uint8_t set_row_command,
uint8_t write_ram_command, uint8_t set_vertical_scroll, uint8_t* init_sequence, uint16_t init_sequence_len,
const mcu_pin_obj_t* backlight_pin, uint16_t brightness_command, mp_float_t brightness, bool auto_brightness,
@@ -52,6 +52,8 @@ void common_hal_displayio_display_construct(displayio_display_obj_t* self,
self->colorspace.depth = color_depth;
self->colorspace.grayscale = grayscale;
self->colorspace.pixels_in_byte_share_row = pixels_in_byte_share_row;
+ self->colorspace.bytes_per_cell = bytes_per_cell;
+ self->colorspace.reverse_pixels_in_byte = reverse_pixels_in_byte;
self->set_column_command = set_column_command;
self->set_row_command = set_row_command;
self->write_ram_command = write_ram_command;
@@ -195,17 +197,25 @@ void common_hal_displayio_display_construct(displayio_display_obj_t* self,
common_hal_displayio_display_show(self, &circuitpython_splash);
}
-void common_hal_displayio_display_show(displayio_display_obj_t* self, displayio_group_t* root_group) {
+bool common_hal_displayio_display_show(displayio_display_obj_t* self, displayio_group_t* root_group) {
if (root_group == NULL) {
root_group = &circuitpython_splash;
}
if (root_group == self->current_group) {
- return;
+ return true;
+ }
+ if (root_group->in_group) {
+ return false;
+ }
+ if (self->current_group != NULL) {
+ self->current_group->in_group = false;
}
displayio_group_update_transform(root_group, &self->transform);
+ root_group->in_group = true;
self->current_group = root_group;
self->full_refresh = true;
common_hal_displayio_display_refresh_soon(self);
+ return true;
}
void common_hal_displayio_display_refresh_soon(displayio_display_obj_t* self) {
@@ -299,11 +309,11 @@ void displayio_display_set_region_to_update(displayio_display_obj_t* self, displ
if (self->colorspace.depth < 8) {
uint8_t pixels_per_byte = 8 / self->colorspace.depth;
if (self->colorspace.pixels_in_byte_share_row) {
- x1 /= pixels_per_byte;
- x2 /= pixels_per_byte;
+ x1 /= pixels_per_byte * self->colorspace.bytes_per_cell;
+ x2 /= pixels_per_byte * self->colorspace.bytes_per_cell;
} else {
- y1 /= pixels_per_byte;
- y2 /= pixels_per_byte;
+ y1 /= pixels_per_byte * self->colorspace.bytes_per_cell;
+ y2 /= pixels_per_byte * self->colorspace.bytes_per_cell;
}
}
@@ -318,7 +328,6 @@ void displayio_display_set_region_to_update(displayio_display_obj_t* self, displ
if (self->single_byte_bounds) {
data[data_length++] = x1 + self->colstart;
data[data_length++] = x2 - 1 + self->colstart;
- data_length += 2;
} else {
x1 += self->colstart;
x2 += self->colstart - 1;
@@ -413,7 +422,7 @@ bool displayio_display_clip_area(displayio_display_obj_t *self, const displayio_
// Expand the area if we have multiple pixels per byte and we need to byte
// align the bounds.
if (self->colorspace.depth < 8) {
- uint8_t pixels_per_byte = 8 / self->colorspace.depth;
+ uint8_t pixels_per_byte = 8 / self->colorspace.depth * self->colorspace.bytes_per_cell;
if (self->colorspace.pixels_in_byte_share_row) {
if (clipped->x1 % pixels_per_byte != 0) {
clipped->x1 -= clipped->x1 % pixels_per_byte;
diff --git a/shared-module/displayio/Palette.h b/shared-module/displayio/Palette.h
index 19c05baf5..a917e2432 100644
--- a/shared-module/displayio/Palette.h
+++ b/shared-module/displayio/Palette.h
@@ -36,6 +36,8 @@ typedef struct {
uint8_t depth;
bool grayscale;
bool pixels_in_byte_share_row;
+ uint8_t bytes_per_cell;
+ bool reverse_pixels_in_byte;
uint8_t hue;
} _displayio_colorspace_t;
diff --git a/shared-module/displayio/TileGrid.c b/shared-module/displayio/TileGrid.c
index 88873d3a9..fee2ae978 100644
--- a/shared-module/displayio/TileGrid.c
+++ b/shared-module/displayio/TileGrid.c
@@ -436,7 +436,11 @@ bool displayio_tilegrid_fill_area(displayio_tilegrid_t *self, const _displayio_c
// asm("bkpt");
// }
}
- ((uint8_t*)buffer)[offset / pixels_per_byte] |= pixel << ((offset % pixels_per_byte) * colorspace->depth);
+ uint8_t shift = (offset % pixels_per_byte) * colorspace->depth;
+ if (colorspace->reverse_pixels_in_byte) {
+ shift = (pixels_per_byte - 1) * colorspace->depth - shift;
+ }
+ ((uint8_t*)buffer)[offset / pixels_per_byte] |= pixel << shift;
}
}
}
diff --git a/shared-module/displayio/__init__.c b/shared-module/displayio/__init__.c
index 97060aaeb..8f6e650a1 100644
--- a/shared-module/displayio/__init__.c
+++ b/shared-module/displayio/__init__.c
@@ -209,35 +209,35 @@ void reset_displays(void) {
}
}
} else if (displays[i].i2cdisplay_bus.base.type == &displayio_i2cdisplay_type) {
- displayio_i2cdisplay_obj_t* i2c = &displays[i].i2cdisplay_bus;
- if (((uint32_t) i2c->bus) < ((uint32_t) &displays) ||
- ((uint32_t) i2c->bus) > ((uint32_t) &displays + CIRCUITPY_DISPLAY_LIMIT)) {
- busio_i2c_obj_t* original_i2c = i2c->bus;
- #if BOARD_I2C
- // We don't need to move original_i2c if it is the board.SPI object because it is
- // statically allocated already. (Doing so would also make it impossible to reference in
- // a subsequent VM run.)
- if (original_i2c == common_hal_board_get_i2c()) {
- continue;
- }
- #endif
- memcpy(&i2c->inline_bus, original_i2c, sizeof(busio_i2c_obj_t));
- i2c->bus = &i2c->inline_bus;
- // Check for other displays that use the same i2c bus and swap them too.
- for (uint8_t j = i + 1; j < CIRCUITPY_DISPLAY_LIMIT; j++) {
- if (displays[i].i2cdisplay_bus.base.type == &displayio_i2cdisplay_type &&
- displays[i].i2cdisplay_bus.bus == original_i2c) {
- displays[i].i2cdisplay_bus.bus = &i2c->inline_bus;
- }
+ displayio_i2cdisplay_obj_t* i2c = &displays[i].i2cdisplay_bus;
+ if (((uint32_t) i2c->bus) < ((uint32_t) &displays) ||
+ ((uint32_t) i2c->bus) > ((uint32_t) &displays + CIRCUITPY_DISPLAY_LIMIT)) {
+ busio_i2c_obj_t* original_i2c = i2c->bus;
+ #if BOARD_I2C
+ // We don't need to move original_i2c if it is the board.SPI object because it is
+ // statically allocated already. (Doing so would also make it impossible to reference in
+ // a subsequent VM run.)
+ if (original_i2c == common_hal_board_get_i2c()) {
+ continue;
+ }
+ #endif
+ memcpy(&i2c->inline_bus, original_i2c, sizeof(busio_i2c_obj_t));
+ i2c->bus = &i2c->inline_bus;
+ // Check for other displays that use the same i2c bus and swap them too.
+ for (uint8_t j = i + 1; j < CIRCUITPY_DISPLAY_LIMIT; j++) {
+ if (displays[i].i2cdisplay_bus.base.type == &displayio_i2cdisplay_type &&
+ displays[i].i2cdisplay_bus.bus == original_i2c) {
+ displays[i].i2cdisplay_bus.bus = &i2c->inline_bus;
}
}
}
- }
-
- for (uint8_t i = 0; i < CIRCUITPY_DISPLAY_LIMIT; i++) {
- if (displays[i].display.base.type == NULL) {
+ } else {
+ // Not an active display.
continue;
}
+
+ // Reset the displayed group. Only the first will get the terminal but
+ // that's ok.
displayio_display_obj_t* display = &displays[i].display;
display->auto_brightness = true;
common_hal_displayio_display_show(display, &circuitpython_splash);
diff --git a/supervisor/shared/display.c b/supervisor/shared/display.c
index 6a39cbe8e..fd51e2c07 100644
--- a/supervisor/shared/display.c
+++ b/supervisor/shared/display.c
@@ -229,5 +229,6 @@ displayio_group_t circuitpython_splash = {
.size = 2,
.max_size = 2,
.children = splash_children,
- .item_removed = false
+ .item_removed = false,
+ .in_group = false
};