diff options
Diffstat (limited to 'shared-module')
| -rw-r--r-- | shared-module/displayio/ColorConverter.c | 90 | ||||
| -rw-r--r-- | shared-module/displayio/ColorConverter.h | 3 | ||||
| -rw-r--r-- | shared-module/displayio/Display.c | 30 | ||||
| -rw-r--r-- | shared-module/displayio/Display.h | 2 | ||||
| -rw-r--r-- | shared-module/displayio/EPaperDisplay.c | 531 | ||||
| -rw-r--r-- | shared-module/displayio/EPaperDisplay.h | 92 | ||||
| -rw-r--r-- | shared-module/displayio/FourWire.c | 27 | ||||
| -rw-r--r-- | shared-module/displayio/Group.c | 3 | ||||
| -rw-r--r-- | shared-module/displayio/I2CDisplay.c | 23 | ||||
| -rw-r--r-- | shared-module/displayio/OnDiskBitmap.c | 49 | ||||
| -rw-r--r-- | shared-module/displayio/Palette.c | 18 | ||||
| -rw-r--r-- | shared-module/displayio/Palette.h | 8 | ||||
| -rw-r--r-- | shared-module/displayio/TileGrid.c | 1 | ||||
| -rw-r--r-- | shared-module/displayio/__init__.c | 91 | ||||
| -rw-r--r-- | shared-module/displayio/__init__.h | 6 |
15 files changed, 891 insertions, 83 deletions
diff --git a/shared-module/displayio/ColorConverter.c b/shared-module/displayio/ColorConverter.c index 6b9bd5840..0277c79f0 100644 --- a/shared-module/displayio/ColorConverter.c +++ b/shared-module/displayio/ColorConverter.c @@ -45,14 +45,104 @@ uint8_t displayio_colorconverter_compute_luma(uint32_t color_rgb888) { return (r8 * 19) / 255 + (g8 * 182) / 255 + (b8 + 54) / 255; } +void compute_bounds(uint8_t r8, uint8_t g8, uint8_t b8, uint8_t* min, uint8_t* max) { + if (r8 > g8) { + if (b8 > r8) { + *max = b8; + } else { + *max = r8; + } + if (b8 < g8) { + *min = b8; + } else { + *min = g8; + } + } else { + if (b8 > g8) { + *max = b8; + } else { + *max = g8; + } + if (b8 < r8) { + *min = b8; + } else { + *min = r8; + } + } +} + +uint8_t displayio_colorconverter_compute_chroma(uint32_t color_rgb888) { + uint32_t r8 = (color_rgb888 >> 16); + uint32_t g8 = (color_rgb888 >> 8) & 0xff; + uint32_t b8 = color_rgb888 & 0xff; + uint8_t max; + uint8_t min; + compute_bounds(r8, g8, b8, &min, &max); + return max - min; +} + +uint8_t displayio_colorconverter_compute_hue(uint32_t color_rgb888) { + uint32_t r8 = (color_rgb888 >> 16); + uint32_t g8 = (color_rgb888 >> 8) & 0xff; + uint32_t b8 = color_rgb888 & 0xff; + uint8_t max; + uint8_t min; + compute_bounds(r8, g8, b8, &min, &max); + uint8_t c = max - min; + if (c == 0) { + return 0; + } + + int32_t hue = 0; + if (max == r8) { + hue = (((int32_t) (g8 - b8) * 40) / c) % 240; + } else if (max == g8) { + hue = (((int32_t) (b8 - r8) + (2 * c)) * 40) / c; + } else if (max == b8) { + hue = (((int32_t) (r8 - g8) + (4 * c)) * 40) / c; + } + if (hue < 0) { + hue += 240; + } + + return hue; +} + +void displayio_colorconverter_compute_tricolor(const _displayio_colorspace_t* colorspace, uint8_t pixel_hue, uint8_t pixel_luma, uint32_t* color) { + + int16_t hue_diff = colorspace->tricolor_hue - pixel_hue; + if ((-10 <= hue_diff && hue_diff <= 10) || hue_diff <= -220 || hue_diff >= 220) { + if (colorspace->grayscale) { + *color = 0; + } else { + *color = 1; + } + } else if (!colorspace->grayscale) { + *color = 0; + } +} + bool displayio_colorconverter_convert(displayio_colorconverter_t *self, const _displayio_colorspace_t* colorspace, uint32_t input_color, uint32_t* output_color) { if (colorspace->depth == 16) { *output_color = displayio_colorconverter_compute_rgb565(input_color); return true; + } else if (colorspace->tricolor) { + uint8_t luma = displayio_colorconverter_compute_luma(input_color); + *output_color = luma >> (8 - colorspace->depth); + if (displayio_colorconverter_compute_chroma(input_color) <= 16) { + if (!colorspace->grayscale) { + *output_color = 0; + } + return true; + } + uint8_t pixel_hue = displayio_colorconverter_compute_hue(input_color); + displayio_colorconverter_compute_tricolor(colorspace, pixel_hue, luma, output_color); + return true; } else if (colorspace->grayscale && colorspace->depth <= 8) { uint8_t luma = displayio_colorconverter_compute_luma(input_color); *output_color = luma >> (8 - colorspace->depth); return true; + } else if (!colorspace->grayscale && colorspace->depth == 1) { } return false; } diff --git a/shared-module/displayio/ColorConverter.h b/shared-module/displayio/ColorConverter.h index c48b98e6d..c79e6a2f7 100644 --- a/shared-module/displayio/ColorConverter.h +++ b/shared-module/displayio/ColorConverter.h @@ -42,5 +42,8 @@ void displayio_colorconverter_finish_refresh(displayio_colorconverter_t *self); bool displayio_colorconverter_convert(displayio_colorconverter_t *self, const _displayio_colorspace_t* colorspace, uint32_t input_color, uint32_t* output_color); uint16_t displayio_colorconverter_compute_rgb565(uint32_t color_rgb888); uint8_t displayio_colorconverter_compute_luma(uint32_t color_rgb888); +uint8_t displayio_colorconverter_compute_chroma(uint32_t color_rgb888); +uint8_t displayio_colorconverter_compute_hue(uint32_t color_rgb888); +void displayio_colorconverter_compute_tricolor(const _displayio_colorspace_t* colorspace, uint8_t pixel_hue, uint8_t pixel_luma, uint32_t* color); #endif // MICROPY_INCLUDED_SHARED_MODULE_DISPLAYIO_COLORCONVERTER_H diff --git a/shared-module/displayio/Display.c b/shared-module/displayio/Display.c index d11813b8c..97a18740a 100644 --- a/shared-module/displayio/Display.c +++ b/shared-module/displayio/Display.c @@ -40,8 +40,6 @@ #include "tick.h" -#define DELAY 0x80 - 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, uint8_t bytes_per_cell, bool reverse_pixels_in_byte, @@ -97,10 +95,10 @@ void common_hal_displayio_display_construct(displayio_display_obj_t* self, uint8_t full_command[data_size + 1]; full_command[0] = cmd[0]; memcpy(full_command + 1, data, data_size); - self->send(self->bus, true, full_command, data_size + 1); + self->send(self->bus, true, true, full_command, data_size + 1); } else { - self->send(self->bus, true, cmd, 1); - self->send(self->bus, false, data, data_size); + self->send(self->bus, true, true, cmd, 1); + self->send(self->bus, false, false, data, data_size); } uint16_t delay_length_ms = 10; if (delay) { @@ -232,6 +230,9 @@ const displayio_area_t* displayio_display_get_refresh_areas(displayio_display_ob self->area.next = NULL; return &self->area; } else { + if (self->current_group == NULL || self->current_group->base.type != &displayio_group_type) { + asm("bkpt"); + } return displayio_group_get_refresh_areas(self->current_group, NULL); } } @@ -283,12 +284,12 @@ bool common_hal_displayio_display_set_brightness(displayio_display_obj_t* self, if (ok) { if (self->data_as_commands) { uint8_t set_brightness[2] = {self->brightness_command, (uint8_t) (0xff * brightness)}; - self->send(self->bus, true, set_brightness, 2); + self->send(self->bus, true, true, set_brightness, 2); } else { uint8_t command = self->brightness_command; uint8_t hex_brightness = 0xff * brightness; - self->send(self->bus, true, &command, 1); - self->send(self->bus, false, &hex_brightness, 1); + self->send(self->bus, true, true, &command, 1); + self->send(self->bus, false, false, &hex_brightness, 1); } self->end_transaction(self->bus); } @@ -331,7 +332,7 @@ void displayio_display_set_region_to_update(displayio_display_obj_t* self, displ data[0] = self->set_column_command; uint8_t data_length = 1; if (!self->data_as_commands) { - self->send(self->bus, true, data, 1); + self->send(self->bus, true, true, data, 1); data_length = 0; } if (self->single_byte_bounds) { @@ -345,13 +346,13 @@ void displayio_display_set_region_to_update(displayio_display_obj_t* self, displ data[data_length++] = x2 >> 8; data[data_length++] = x2 & 0xff; } - self->send(self->bus, self->data_as_commands, data, data_length); + self->send(self->bus, self->data_as_commands, self->data_as_commands, data, data_length); // Set row. data[0] = self->set_row_command; data_length = 1; if (!self->data_as_commands) { - self->send(self->bus, true, data, 1); + self->send(self->bus, true, true, data, 1); data_length = 0; } if (self->single_byte_bounds) { @@ -365,7 +366,7 @@ void displayio_display_set_region_to_update(displayio_display_obj_t* self, displ data[data_length++] = y2 >> 8; data[data_length++] = y2 & 0xff; } - self->send(self->bus, self->data_as_commands, data, data_length); + self->send(self->bus, self->data_as_commands, self->data_as_commands, data, data_length); } void displayio_display_start_refresh(displayio_display_obj_t* self) { @@ -391,9 +392,9 @@ void displayio_display_finish_refresh(displayio_display_obj_t* self) { void displayio_display_send_pixels(displayio_display_obj_t* self, uint8_t* pixels, uint32_t length) { if (!self->data_as_commands) { - self->send(self->bus, true, &self->write_ram_command, 1); + self->send(self->bus, true, true, &self->write_ram_command, 1); } - self->send(self->bus, false, pixels, length); + self->send(self->bus, false, false, pixels, length); } void displayio_display_update_backlight(displayio_display_obj_t* self) { @@ -414,7 +415,6 @@ void release_display(displayio_display_obj_t* self) { if (self->current_group != NULL) { self->current_group->in_group = false; } - if (self->backlight_pwm.base.type == &pulseio_pwmout_type) { common_hal_pulseio_pwmout_reset_ok(&self->backlight_pwm); common_hal_pulseio_pwmout_deinit(&self->backlight_pwm); diff --git a/shared-module/displayio/Display.h b/shared-module/displayio/Display.h index 74ae175b1..c85d69b0e 100644 --- a/shared-module/displayio/Display.h +++ b/shared-module/displayio/Display.h @@ -34,7 +34,7 @@ #include "shared-module/displayio/area.h" typedef bool (*display_bus_begin_transaction)(mp_obj_t bus); -typedef void (*display_bus_send)(mp_obj_t bus, bool command, uint8_t *data, uint32_t data_length); +typedef void (*display_bus_send)(mp_obj_t bus, bool command, bool toggle_every_byte, uint8_t *data, uint32_t data_length); typedef void (*display_bus_end_transaction)(mp_obj_t bus); typedef struct { diff --git a/shared-module/displayio/EPaperDisplay.c b/shared-module/displayio/EPaperDisplay.c new file mode 100644 index 000000000..5e4bdc340 --- /dev/null +++ b/shared-module/displayio/EPaperDisplay.c @@ -0,0 +1,531 @@ +/* + * This file is part of the MicroPython project, http://micropython.org/ + * + * The MIT License (MIT) + * + * Copyright (c) 2019 Scott Shawcroft for Adafruit Industries + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#include "shared-bindings/displayio/EPaperDisplay.h" + +#include "py/runtime.h" +#include "shared-bindings/displayio/ColorConverter.h" +#include "shared-bindings/displayio/FourWire.h" +#include "shared-bindings/displayio/I2CDisplay.h" +#include "shared-bindings/displayio/ParallelBus.h" +#include "shared-bindings/microcontroller/Pin.h" +#include "shared-bindings/time/__init__.h" +#include "shared-module/displayio/__init__.h" +#include "supervisor/shared/display.h" +#include "supervisor/usb.h" + +#include <stdint.h> +#include <string.h> + +#include "tick.h" + +void common_hal_displayio_epaperdisplay_construct(displayio_epaperdisplay_obj_t* self, + mp_obj_t bus, uint8_t* start_sequence, uint16_t start_sequence_len, uint8_t* stop_sequence, uint16_t stop_sequence_len, + uint16_t width, uint16_t height, uint16_t ram_width, uint16_t ram_height, + int16_t colstart, int16_t rowstart, uint16_t rotation, + uint16_t set_column_window_command, uint16_t set_row_window_command, + uint16_t set_current_column_command, uint16_t set_current_row_command, + uint16_t write_black_ram_command, bool black_bits_inverted, uint16_t write_color_ram_command, bool color_bits_inverted, uint32_t third_color, uint16_t refresh_display_command, + const mcu_pin_obj_t* busy_pin, bool busy_state, mp_float_t seconds_per_frame, bool always_toggle_chip_select) { + self->colorspace.depth = 1; + self->colorspace.grayscale = true; + self->colorspace.pixels_in_byte_share_row = true; + self->colorspace.bytes_per_cell = 1; + self->colorspace.reverse_pixels_in_byte = true; + + if (third_color != 0x000000) { + self->colorspace.tricolor = true; + self->colorspace.tricolor_hue = displayio_colorconverter_compute_hue(third_color); + self->colorspace.tricolor_luma = displayio_colorconverter_compute_luma(third_color); + } + + self->set_column_window_command = set_column_window_command; + self->set_row_window_command = set_row_window_command; + self->set_current_column_command = set_current_column_command; + self->set_current_row_command = set_current_row_command; + self->write_black_ram_command = write_black_ram_command; + self->black_bits_inverted = black_bits_inverted; + self->write_color_ram_command = write_color_ram_command; + self->color_bits_inverted = color_bits_inverted; + self->refresh_display_command = refresh_display_command; + self->busy_state = busy_state; + self->refresh = true; + self->current_group = NULL; + self->colstart = colstart; + self->rowstart = rowstart; + self->refreshing = false; + self->milliseconds_per_frame = seconds_per_frame * 1000; + self->always_toggle_chip_select = always_toggle_chip_select; + + self->start_sequence = start_sequence; + self->start_sequence_len = start_sequence_len; + self->stop_sequence = stop_sequence; + self->stop_sequence_len = stop_sequence_len; + + + if (MP_OBJ_IS_TYPE(bus, &displayio_parallelbus_type)) { + self->bus_reset = common_hal_displayio_parallelbus_reset; + self->bus_free = common_hal_displayio_parallelbus_bus_free; + self->begin_transaction = common_hal_displayio_parallelbus_begin_transaction; + self->send = common_hal_displayio_parallelbus_send; + self->end_transaction = common_hal_displayio_parallelbus_end_transaction; + } else if (MP_OBJ_IS_TYPE(bus, &displayio_fourwire_type)) { + self->bus_reset = common_hal_displayio_fourwire_reset; + self->bus_free = common_hal_displayio_fourwire_bus_free; + self->begin_transaction = common_hal_displayio_fourwire_begin_transaction; + self->send = common_hal_displayio_fourwire_send; + self->end_transaction = common_hal_displayio_fourwire_end_transaction; + } else if (MP_OBJ_IS_TYPE(bus, &displayio_i2cdisplay_type)) { + self->bus_reset = common_hal_displayio_i2cdisplay_reset; + self->bus_free = common_hal_displayio_i2cdisplay_bus_free; + self->begin_transaction = common_hal_displayio_i2cdisplay_begin_transaction; + self->send = common_hal_displayio_i2cdisplay_send; + self->end_transaction = common_hal_displayio_i2cdisplay_end_transaction; + } else { + mp_raise_ValueError(translate("Unsupported display bus type")); + } + self->bus = bus; + + supervisor_start_terminal(width, height); + + self->width = width; + self->height = height; + rotation = rotation % 360; + self->transform.x = 0; + self->transform.y = 0; + self->transform.scale = 1; + self->transform.mirror_x = false; + self->transform.mirror_y = false; + self->transform.transpose_xy = false; + if (rotation == 0 || rotation == 180) { + if (rotation == 180) { + self->transform.mirror_x = true; + self->transform.mirror_y = true; + } + } else { + self->transform.transpose_xy = true; + if (rotation == 270) { + self->transform.mirror_y = true; + } else { + self->transform.mirror_x = true; + } + } + + self->ram_width = ram_width; + self->ram_height = ram_height; + + self->area.x1 = 0; + self->area.y1 = 0; + self->area.next = NULL; + + self->transform.dx = 1; + self->transform.dy = 1; + if (self->transform.transpose_xy) { + self->area.x2 = height; + self->area.y2 = width; + if (self->transform.mirror_x) { + self->transform.x = height; + self->transform.dx = -1; + } + if (self->transform.mirror_y) { + self->transform.y = width; + self->transform.dy = -1; + } + } else { + self->area.x2 = width; + self->area.y2 = height; + if (self->transform.mirror_x) { + self->transform.x = width; + self->transform.dx = -1; + } + if (self->transform.mirror_y) { + self->transform.y = height; + self->transform.dy = -1; + } + } + + self->busy.base.type = &mp_type_NoneType; + if (busy_pin != NULL) { + self->busy.base.type = &digitalio_digitalinout_type; + common_hal_digitalio_digitalinout_construct(&self->busy, busy_pin); + never_reset_pin_number(busy_pin->number); + } + + // Set the group after initialization otherwise we may send pixels while we delay in + // initialization. + common_hal_displayio_epaperdisplay_show(self, &circuitpython_splash); +} + +bool common_hal_displayio_epaperdisplay_show(displayio_epaperdisplay_obj_t* self, displayio_group_t* root_group) { + if (root_group == NULL && !circuitpython_splash.in_group) { + root_group = &circuitpython_splash; + } + if (root_group == self->current_group) { + return true; + } + if (root_group != NULL && root_group->in_group) { + return false; + } + if (self->current_group != NULL) { + self->current_group->in_group = false; + } + if (root_group != NULL) { + 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_epaperdisplay_refresh_soon(self); + return true; +} + +void common_hal_displayio_epaperdisplay_refresh_soon(displayio_epaperdisplay_obj_t* self) { + self->refresh = true; +} + +const displayio_area_t* displayio_epaperdisplay_get_refresh_areas(displayio_epaperdisplay_obj_t *self) { + const displayio_area_t* first_area; + if (self->current_group == NULL || self->current_group->base.type != &displayio_group_type) { + asm("bkpt"); + } + if (self->full_refresh) { + first_area = &self->area; + } else { + first_area = displayio_group_get_refresh_areas(self->current_group, NULL); + } + if (first_area != NULL && self->set_row_window_command == NO_COMMAND) { + self->area.next = NULL; + return &self->area; + } + return first_area; +} + +int32_t common_hal_displayio_epaperdisplay_wait_for_frame(displayio_epaperdisplay_obj_t* self) { + uint64_t last_refresh = self->last_refresh; + // Don't try to refresh if we got an exception. + while (last_refresh == self->last_refresh && MP_STATE_VM(mp_pending_exception) == NULL) { + MICROPY_VM_HOOK_LOOP + } + return 0; +} + +uint16_t common_hal_displayio_epaperdisplay_get_width(displayio_epaperdisplay_obj_t* self){ + return self->width; +} + +uint16_t common_hal_displayio_epaperdisplay_get_height(displayio_epaperdisplay_obj_t* self){ + return self->height; +} + +bool displayio_epaperdisplay_bus_free(displayio_epaperdisplay_obj_t *self) { + return self->bus_free(self->bus); +} + +bool displayio_epaperdisplay_begin_transaction(displayio_epaperdisplay_obj_t* self) { + return self->begin_transaction(self->bus); +} + +void displayio_epaperdisplay_end_transaction(displayio_epaperdisplay_obj_t* self) { + self->end_transaction(self->bus); +} + +STATIC void wait_for_busy(displayio_epaperdisplay_obj_t* self) { + if (self->busy.base.type == &mp_type_NoneType) { + return; + } + while (common_hal_digitalio_digitalinout_get_value(&self->busy) == self->busy_state) { + #ifdef MICROPY_VM_HOOK_LOOP + MICROPY_VM_HOOK_LOOP + #endif + } +} + +STATIC void send_command_sequence(displayio_epaperdisplay_obj_t* self, bool should_wait_for_busy, uint8_t* sequence, uint32_t sequence_len) { + uint32_t i = 0; + while (i < sequence_len) { + uint8_t *cmd = sequence + i; + uint8_t data_size = *(cmd + 1); + bool delay = (data_size & DELAY) != 0; + data_size &= ~DELAY; + uint8_t *data = cmd + 2; + self->begin_transaction(self->bus); + self->send(self->bus, true, self->always_toggle_chip_select, cmd, 1); + self->send(self->bus, false, self->always_toggle_chip_select, data, data_size); + self->end_transaction(self->bus); + uint16_t delay_length_ms = 0; + if (delay) { + data_size++; + delay_length_ms = *(cmd + 1 + data_size); + if (delay_length_ms == 255) { + delay_length_ms = 500; + } + } + common_hal_time_delay_ms(delay_length_ms); + if (should_wait_for_busy) { + wait_for_busy(self); + } + i += 2 + data_size; + } +} + +void displayio_epaperdisplay_set_region_to_update(displayio_epaperdisplay_obj_t* self, displayio_area_t* area) { + if (self->set_row_window_command == NO_COMMAND) { + return; + } + uint16_t x1 = area->x1; + uint16_t x2 = area->x2; + uint16_t y1 = area->y1; + uint16_t y2 = area->y2; + // Collapse down the dimension where multiple pixels are in a byte. + uint8_t pixels_per_byte = 8 / self->colorspace.depth; + x1 /= pixels_per_byte * self->colorspace.bytes_per_cell; + x2 /= pixels_per_byte * self->colorspace.bytes_per_cell; + + + // Set column. + uint8_t data[5]; + data[0] = self->set_column_window_command; + self->send(self->bus, true, self->always_toggle_chip_select, data, 1); + uint8_t data_length = 0; + if (self->ram_width / pixels_per_byte < 0x100) { + data[data_length++] = x1 + self->colstart; + data[data_length++] = x2 - 1 + self->colstart; + } else { + x1 += self->colstart; + x2 += self->colstart - 1; + data[data_length++] = x1 >> 8; + data[data_length++] = x1 & 0xff; + data[data_length++] = x2 >> 8; + data[data_length++] = x2 & 0xff; + } + self->send(self->bus, false, self->always_toggle_chip_select, data, data_length); + if (self->set_current_column_command != NO_COMMAND) { + uint8_t command = self->set_current_column_command; + self->send(self->bus, true, self->always_toggle_chip_select, &command, 1); + self->send(self->bus, false, self->always_toggle_chip_select, data, data_length / 2); + } + + // Set row. + data[0] = self->set_row_window_command; + self->send(self->bus, true, self->always_toggle_chip_select, data, 1); + data_length = 0; + if (self->ram_height < 0x100) { + data[data_length++] = y1 + self->rowstart; + data[data_length++] = y2 - 1 + self->rowstart; + } else { + y1 += self->rowstart; + y2 += self->rowstart - 1; + data[data_length++] = y1 & 0xff; + data[data_length++] = y1 >> 8; + data[data_length++] = y2 & 0xff; + data[data_length++] = y2 >> 8; + } + self->send(self->bus, false, self->always_toggle_chip_select, data, data_length); + if (self->set_current_row_command != NO_COMMAND) { + uint8_t command = self->set_current_row_command; + self->send(self->bus, true, self->always_toggle_chip_select, &command, 1); + self->send(self->bus, false, self->always_toggle_chip_select, data, data_length / 2); + } +} + +void displayio_epaperdisplay_start_refresh(displayio_epaperdisplay_obj_t* self) { + // run start sequence + self->bus_reset(self->bus); + + send_command_sequence(self, true, self->start_sequence, self->start_sequence_len); + self->last_refresh = ticks_ms; +} + +bool displayio_epaperdisplay_frame_queued(displayio_epaperdisplay_obj_t* self) { + if (self->refreshing && self->busy.base.type == &digitalio_digitalinout_type) { + if (common_hal_digitalio_digitalinout_get_value(&self->busy) != self->busy_state) { + self->refreshing = false; + // Run stop sequence but don't wait for busy because busy is set when sleeping. + send_command_sequence(self, false, self->stop_sequence, self->stop_sequence_len); + } else { + return false; + } + } + if (self->current_group == NULL) { + return false; + } + // Refresh at seconds per frame rate. + return (ticks_ms - self->last_refresh) > self->milliseconds_per_frame; +} + +void displayio_epaperdisplay_finish_refresh(displayio_epaperdisplay_obj_t* self) { + // Actually refresh the display now that all pixel RAM has been updated. + displayio_epaperdisplay_begin_transaction(self); + self->send(self->bus, true, self->always_toggle_chip_select, &self->refresh_display_command, 1); + displayio_epaperdisplay_end_transaction(self); + self->refreshing = true; + + if (self->current_group != NULL) { + displayio_group_finish_refresh(self->current_group); + } + self->refresh = false; + self->full_refresh = false; + self->last_refresh = ticks_ms; +} + +void displayio_epaperdisplay_send_pixels(displayio_epaperdisplay_obj_t* self, uint8_t* pixels, uint32_t length) { +} + + +bool displayio_epaperdisplay_refresh_area(displayio_epaperdisplay_obj_t* self, const displayio_area_t* area) { + uint16_t buffer_size = 128; // In uint32_ts + + displayio_area_t clipped; + // Clip the area to the display by overlapping the areas. If there is no overlap then we're done. + if (!displayio_epaperdisplay_clip_area(self, area, &clipped)) { + return true; + } + uint16_t subrectangles = 1; + uint16_t rows_per_buffer = displayio_area_height(&clipped); + uint8_t pixels_per_word = (sizeof(uint32_t) * 8) / self->colorspace.depth; + uint16_t pixels_per_buffer = displayio_area_size(&clipped); + if (displayio_area_size(&clipped) > buffer_size * pixels_per_word) { + rows_per_buffer = buffer_size * pixels_per_word / displayio_area_width(&clipped); + if (rows_per_buffer == 0) { + rows_per_buffer = 1; + } + subrectangles = displayio_area_height(&clipped) / rows_per_buffer; + if (displayio_area_height(&clipped) % rows_per_buffer != 0) { + subrectangles++; + } + pixels_per_buffer = rows_per_buffer * displayio_area_width(&clipped); + buffer_size = pixels_per_buffer / pixels_per_word; + if (pixels_per_buffer % pixels_per_word) { + buffer_size += 1; + } + } + + // Allocated and shared as a uint32_t array so the compiler knows the + // alignment everywhere. + uint32_t buffer[buffer_size]; + volatile uint32_t mask_length = (pixels_per_buffer / 32) + 1; + uint32_t mask[mask_length]; + + uint8_t passes = 1; + if (self->colorspace.tricolor) { + passes = 2; + } + for (uint8_t pass = 0; pass < passes; pass++) { + uint16_t remaining_rows = displayio_area_height(&clipped); + + displayio_epaperdisplay_begin_transaction(self); + displayio_epaperdisplay_set_region_to_update(self, &clipped); + displayio_epaperdisplay_end_transaction(self); + + uint8_t write_command = self->write_black_ram_command; + if (pass == 1) { + write_command = self->write_color_ram_command; + } + displayio_epaperdisplay_begin_transaction(self); + self->send(self->bus, true, self->always_toggle_chip_select, &write_command, 1); + displayio_epaperdisplay_end_transaction(self); + + for (uint16_t j = 0; j < subrectangles; j++) { + displayio_area_t subrectangle = { + .x1 = clipped.x1, + .y1 = clipped.y1 + rows_per_buffer * j, + .x2 = clipped.x2, + .y2 = clipped.y1 + rows_per_buffer * (j + 1) + }; + if (remaining_rows < rows_per_buffer) { + subrectangle.y2 = subrectangle.y1 + remaining_rows; + } + remaining_rows -= rows_per_buffer; + + + uint16_t subrectangle_size_bytes = displayio_area_size(&subrectangle) / (8 / self->colorspace.depth); + + for (uint16_t k = 0; k < mask_length; k++) { + mask[k] = 0x00000000; + } + for (uint16_t k = 0; k < buffer_size; k++) { + buffer[k] = 0x00000000; + } + + self->colorspace.grayscale = true; + if (pass == 1) { + self->colorspace.grayscale = false; + } + displayio_group_fill_area(self->current_group, &self->colorspace, &subrectangle, mask, buffer); + + // Invert it all. + if ((pass == 1 && self->color_bits_inverted) || + (pass == 0 && self->black_bits_inverted)) { + for (uint16_t k = 0; k < buffer_size; k++) { + buffer[k] = ~buffer[k]; + } + } + + if (!displayio_epaperdisplay_begin_transaction(self)) { + // Can't acquire display bus; skip the rest of the data. Try next display. + return false; + } + self->send(self->bus, false, self->always_toggle_chip_select, (uint8_t*) buffer, subrectangle_size_bytes); + displayio_epaperdisplay_end_transaction(self); + + // TODO(tannewt): Make refresh displays faster so we don't starve other + // background tasks. + usb_background(); + } + } + + return true; +} + +void release_epaperdisplay(displayio_epaperdisplay_obj_t* self) { + if (self->current_group != NULL) { + self->current_group->in_group = false; + } + if (self->busy.base.type == &digitalio_digitalinout_type) { + common_hal_digitalio_digitalinout_deinit(&self->busy); + } +} + +bool displayio_epaperdisplay_fill_area(displayio_epaperdisplay_obj_t *self, displayio_area_t* area, uint32_t* mask, uint32_t *buffer) { + return displayio_group_fill_area(self->current_group, &self->colorspace, area, mask, buffer); +} + +bool displayio_epaperdisplay_clip_area(displayio_epaperdisplay_obj_t *self, const displayio_area_t* area, displayio_area_t* clipped) { + bool overlaps = displayio_area_compute_overlap(&self->area, area, clipped); + if (!overlaps) { + return false; + } + // Expand the area if we have multiple pixels per byte and we need to byte + // align the bounds. + uint8_t pixels_per_byte = 8; + if (clipped->x1 % pixels_per_byte != 0) { + clipped->x1 -= clipped->x1 % pixels_per_byte; + } + if (clipped->x2 % pixels_per_byte != 0) { + clipped->x2 += pixels_per_byte - clipped->x2 % pixels_per_byte; + } + return true; +} diff --git a/shared-module/displayio/EPaperDisplay.h b/shared-module/displayio/EPaperDisplay.h new file mode 100644 index 000000000..737b5987a --- /dev/null +++ b/shared-module/displayio/EPaperDisplay.h @@ -0,0 +1,92 @@ +/* + * This file is part of the MicroPython project, http://micropython.org/ + * + * The MIT License (MIT) + * + * Copyright (c) 2019 Scott Shawcroft for Adafruit Industries + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#ifndef MICROPY_INCLUDED_SHARED_MODULE_DISPLAYIO_EPAPERDISPLAY_H +#define MICROPY_INCLUDED_SHARED_MODULE_DISPLAYIO_EPAPERDISPLAY_H + +#include "shared-bindings/digitalio/DigitalInOut.h" +#include "shared-bindings/displayio/Group.h" +#include "shared-bindings/pulseio/PWMOut.h" + +#include "shared-module/displayio/area.h" + +typedef void (*display_bus_bus_reset)(mp_obj_t bus); +typedef bool (*display_bus_bus_free)(mp_obj_t bus); +typedef bool (*display_bus_begin_transaction)(mp_obj_t bus); +typedef void (*display_bus_send)(mp_obj_t bus, bool command, bool toggle_every_byte, uint8_t *data, uint32_t data_length); +typedef void (*display_bus_end_transaction)(mp_obj_t bus); + +typedef struct { + mp_obj_base_t base; + mp_obj_t bus; + displayio_group_t *current_group; + uint64_t last_refresh; + display_bus_bus_reset bus_reset; + display_bus_bus_free bus_free; + display_bus_begin_transaction begin_transaction; + display_bus_send send; + display_bus_end_transaction end_transaction; + digitalio_digitalinout_obj_t busy; + uint32_t milliseconds_per_frame; + uint8_t* start_sequence; + uint32_t start_sequence_len; + uint8_t* stop_sequence; + uint32_t stop_sequence_len; + displayio_buffer_transform_t transform; + displayio_area_t area; + uint16_t width; + uint16_t height; + uint16_t ram_width; + uint16_t ram_height; + _displayio_colorspace_t colorspace; + int16_t colstart; + int16_t rowstart; + uint16_t set_column_window_command; + uint16_t set_row_window_command; + uint16_t set_current_column_command; + uint16_t set_current_row_command; + uint16_t write_black_ram_command; + uint16_t write_color_ram_command; + uint8_t refresh_display_command; + uint8_t hue; + bool busy_state; + bool black_bits_inverted; + bool color_bits_inverted; + bool refresh; + bool refreshing; + bool full_refresh; // New group means we need to refresh the whole display. + bool always_toggle_chip_select; +} displayio_epaperdisplay_obj_t; + +bool displayio_epaperdisplay_refresh_area(displayio_epaperdisplay_obj_t* display, const displayio_area_t* area); +void displayio_epaperdisplay_start_refresh(displayio_epaperdisplay_obj_t* self); +const displayio_area_t* displayio_epaperdisplay_get_refresh_areas(displayio_epaperdisplay_obj_t *self); +bool displayio_epaperdisplay_fill_area(displayio_epaperdisplay_obj_t *self, displayio_area_t* area, uint32_t* mask, uint32_t *buffer); +bool displayio_epaperdisplay_clip_area(displayio_epaperdisplay_obj_t *self, const displayio_area_t* area, displayio_area_t* clipped); +bool displayio_epaperdisplay_bus_free(displayio_epaperdisplay_obj_t *self); +void release_epaperdisplay(displayio_epaperdisplay_obj_t* self); + +#endif // MICROPY_INCLUDED_SHARED_MODULE_DISPLAYIO_EPAPERDISPLAY_H diff --git a/shared-module/displayio/FourWire.c b/shared-module/displayio/FourWire.c index 913635db8..64ad80665 100644 --- a/shared-module/displayio/FourWire.c +++ b/shared-module/displayio/FourWire.c @@ -59,11 +59,7 @@ void common_hal_displayio_fourwire_construct(displayio_fourwire_obj_t* self, common_hal_digitalio_digitalinout_construct(&self->reset, reset); common_hal_digitalio_digitalinout_switch_to_output(&self->reset, true, DRIVE_MODE_PUSH_PULL); never_reset_pin_number(reset->number); - - common_hal_digitalio_digitalinout_set_value(&self->reset, false); - common_hal_mcu_delay_us(10); - common_hal_digitalio_digitalinout_set_value(&self->reset, true); - common_hal_mcu_delay_us(10); + common_hal_displayio_fourwire_reset(self); } never_reset_pin_number(command->number); @@ -80,6 +76,23 @@ void common_hal_displayio_fourwire_deinit(displayio_fourwire_obj_t* self) { reset_pin_number(self->reset.pin->number); } +void common_hal_displayio_fourwire_reset(mp_obj_t obj) { + displayio_fourwire_obj_t* self = MP_OBJ_TO_PTR(obj); + common_hal_digitalio_digitalinout_set_value(&self->reset, false); + common_hal_time_delay_ms(1); + common_hal_digitalio_digitalinout_set_value(&self->reset, true); + common_hal_time_delay_ms(1); +} + +bool common_hal_displayio_fourwire_bus_free(mp_obj_t obj) { + displayio_fourwire_obj_t* self = MP_OBJ_TO_PTR(obj); + if (!common_hal_busio_spi_try_lock(self->bus)) { + return false; + } + common_hal_busio_spi_unlock(self->bus); + return true; +} + bool common_hal_displayio_fourwire_begin_transaction(mp_obj_t obj) { displayio_fourwire_obj_t* self = MP_OBJ_TO_PTR(obj); if (!common_hal_busio_spi_try_lock(self->bus)) { @@ -91,10 +104,10 @@ bool common_hal_displayio_fourwire_begin_transaction(mp_obj_t obj) { return true; } -void common_hal_displayio_fourwire_send(mp_obj_t obj, bool command, uint8_t *data, uint32_t data_length) { +void common_hal_displayio_fourwire_send(mp_obj_t obj, bool command, bool toggle_every_byte, uint8_t *data, uint32_t data_length) { displayio_fourwire_obj_t* self = MP_OBJ_TO_PTR(obj); common_hal_digitalio_digitalinout_set_value(&self->command, !command); - if (command) { + if (toggle_every_byte) { // Toggle chip select after each command byte in case the display driver // IC latches commands based on it. for (size_t i = 0; i < data_length; i++) { diff --git a/shared-module/displayio/Group.c b/shared-module/displayio/Group.c index 38418a029..eb6e9a453 100644 --- a/shared-module/displayio/Group.c +++ b/shared-module/displayio/Group.c @@ -304,6 +304,9 @@ void displayio_group_finish_refresh(displayio_group_t *self) { } displayio_area_t* displayio_group_get_refresh_areas(displayio_group_t *self, displayio_area_t* tail) { + if (self->base.type != &displayio_group_type) { + asm("bkpt"); + } if (self->item_removed) { self->dirty_area.next = tail; tail = &self->dirty_area; diff --git a/shared-module/displayio/I2CDisplay.c b/shared-module/displayio/I2CDisplay.c index 9d8949528..23ebc0889 100644 --- a/shared-module/displayio/I2CDisplay.c +++ b/shared-module/displayio/I2CDisplay.c @@ -59,10 +59,7 @@ void common_hal_displayio_i2cdisplay_construct(displayio_i2cdisplay_obj_t* self, common_hal_digitalio_digitalinout_construct(&self->reset, reset); common_hal_digitalio_digitalinout_switch_to_output(&self->reset, true, DRIVE_MODE_PUSH_PULL); never_reset_pin_number(reset->number); - - common_hal_digitalio_digitalinout_set_value(&self->reset, false); - common_hal_mcu_delay_us(1); - common_hal_digitalio_digitalinout_set_value(&self->reset, true); + common_hal_displayio_i2cdisplay_reset(self); } } @@ -74,7 +71,17 @@ void common_hal_displayio_i2cdisplay_deinit(displayio_i2cdisplay_obj_t* self) { reset_pin_number(self->reset.pin->number); } -bool common_hal_displayio_i2cdisplay_begin_transaction(mp_obj_t obj) { + +void common_hal_displayio_i2cdisplay_reset(mp_obj_t obj) { + displayio_i2cdisplay_obj_t* self = MP_OBJ_TO_PTR(obj); + + common_hal_digitalio_digitalinout_set_value(&self->reset, false); + common_hal_mcu_delay_us(1); + common_hal_digitalio_digitalinout_set_value(&self->reset, true); +} + + +bool common_hal_displayio_i2cdisplay_bus_free(mp_obj_t obj) { displayio_i2cdisplay_obj_t* self = MP_OBJ_TO_PTR(obj); if (!common_hal_busio_i2c_try_lock(self->bus)) { return false; @@ -82,7 +89,11 @@ bool common_hal_displayio_i2cdisplay_begin_transaction(mp_obj_t obj) { return true; } -void common_hal_displayio_i2cdisplay_send(mp_obj_t obj, bool command, uint8_t *data, uint32_t data_length) { +bool common_hal_displayio_i2cdisplay_begin_transaction(mp_obj_t obj) { + return common_hal_displayio_i2cdisplay_bus_free(obj); +} + +void common_hal_displayio_i2cdisplay_send(mp_obj_t obj, bool command, bool toggle_every_byte, uint8_t *data, uint32_t data_length) { displayio_i2cdisplay_obj_t* self = MP_OBJ_TO_PTR(obj); if (command) { uint8_t command_bytes[2 * data_length]; diff --git a/shared-module/displayio/OnDiskBitmap.c b/shared-module/displayio/OnDiskBitmap.c index 2b5642437..10fc0c4a2 100644 --- a/shared-module/displayio/OnDiskBitmap.c +++ b/shared-module/displayio/OnDiskBitmap.c @@ -74,7 +74,7 @@ void common_hal_displayio_ondiskbitmap_construct(displayio_ondiskbitmap_t *self, self->g_bitmask = 0x3e0; self->b_bitmask = 0x1f; } - } else if ((indexed) && (self->bits_per_pixel != 1)) { + } else if (indexed && self->bits_per_pixel != 1) { uint16_t palette_size = number_of_colors * sizeof(uint32_t); uint16_t palette_offset = 0xe + header_size; @@ -90,25 +90,24 @@ void common_hal_displayio_ondiskbitmap_construct(displayio_ondiskbitmap_t *self, if (palette_bytes_read != palette_size) { mp_raise_ValueError(translate("Unable to read color palette data")); } - - } else if (!(header_size == 12 || header_size == 40 || header_size == 108 || header_size == 124)) { mp_raise_ValueError_varg(translate("Only Windows format, uncompressed BMP supported: given header size is %d"), header_size); } - if ((bits_per_pixel == 4 ) || (( bits_per_pixel == 8) && (number_of_colors == 0))) { - mp_raise_ValueError_varg(translate("Only monochrome, indexed 8bpp, and 16bpp or greater BMPs supported: %d bpp given"), bits_per_pixel); + if (bits_per_pixel == 8 && number_of_colors == 0) { + mp_raise_ValueError_varg(translate("Only monochrome, indexed 4bpp or 8bpp, and 16bpp or greater BMPs supported: %d bpp given"), bits_per_pixel); } - if (self->bits_per_pixel >=8){ - self->stride = (self->width * (bits_per_pixel / 8)); + uint8_t bytes_per_pixel = (self->bits_per_pixel / 8) ? (self->bits_per_pixel /8) : 1; + uint8_t pixels_per_byte = 8 / self->bits_per_pixel; + if (pixels_per_byte == 0){ + self->stride = (self->width * bytes_per_pixel); // Rows are word aligned. if (self->stride % 4 != 0) { self->stride += 4 - self->stride % 4; } - } else { - uint32_t bit_stride = self->width; + uint32_t bit_stride = self->width * self->bits_per_pixel; if (bit_stride % 32 != 0) { bit_stride += 32 - bit_stride % 32; } @@ -126,10 +125,11 @@ uint32_t common_hal_displayio_ondiskbitmap_get_pixel(displayio_ondiskbitmap_t *s uint32_t location; uint8_t bytes_per_pixel = (self->bits_per_pixel / 8) ? (self->bits_per_pixel /8) : 1; - if (self->bits_per_pixel >= 8){ + uint8_t pixels_per_byte = 8 / self->bits_per_pixel; + if (pixels_per_byte == 0){ location = self->data_offset + (self->height - y - 1) * self->stride + x * bytes_per_pixel; } else { - location = self->data_offset + (self->height - y - 1) * self->stride + x / 8; + location = self->data_offset + (self->height - y - 1) * self->stride + x / pixels_per_byte; } // We don't cache here because the underlying FS caches sectors. f_lseek(&self->file->fp, location); @@ -141,20 +141,21 @@ uint32_t common_hal_displayio_ondiskbitmap_get_pixel(displayio_ondiskbitmap_t *s uint8_t red; uint8_t green; uint8_t blue; - if (self->bits_per_pixel == 1) { - uint8_t bit_offset = x%8; - tmp = ( pixel_data & (0x80 >> (bit_offset))) >> (7 - bit_offset); - if (tmp == 1) { - return 0x00FFFFFF; - } else { - return 0x00000000; + if (bytes_per_pixel == 1) { + uint8_t offset = (x % pixels_per_byte) * self->bits_per_pixel; + uint8_t mask = (1 << self->bits_per_pixel) - 1; + + uint8_t index = (pixel_data >> ((8 - self->bits_per_pixel) - offset)) & mask; + if (self->bits_per_pixel == 1) { + if (index == 1) { + return 0xFFFFFF; + } else if (index == 0) { + return 0x000000; + } else { + asm("bkpt"); + } } - } else if (bytes_per_pixel == 1) { - blue = ((self->palette_data[pixel_data] & 0xFF) >> 0); - red = ((self->palette_data[pixel_data] & 0xFF0000) >> 16); - green = ((self->palette_data[pixel_data] & 0xFF00) >> 8); - tmp = (red << 16 | green << 8 | blue ); - return tmp; + return self->palette_data[index]; } else if (bytes_per_pixel == 2) { if (self->g_bitmask == 0x07e0) { // 565 red =((pixel_data & self->r_bitmask) >>11); diff --git a/shared-module/displayio/Palette.c b/shared-module/displayio/Palette.c index 444151b3c..3bce86f48 100644 --- a/shared-module/displayio/Palette.c +++ b/shared-module/displayio/Palette.c @@ -52,6 +52,10 @@ void common_hal_displayio_palette_set_color(displayio_palette_t* self, uint32_t self->colors[palette_index].rgb888 = color; self->colors[palette_index].luma = displayio_colorconverter_compute_luma(color); self->colors[palette_index].rgb565 = displayio_colorconverter_compute_rgb565(color); + + uint8_t chroma = displayio_colorconverter_compute_chroma(color); + self->colors[palette_index].chroma = chroma; + self->colors[palette_index].hue = displayio_colorconverter_compute_hue(color); self->needs_refresh = true; } @@ -64,7 +68,19 @@ bool displayio_palette_get_color(displayio_palette_t *self, const _displayio_col return false; // returns opaque } - if (colorspace->grayscale) { + if (colorspace->tricolor) { + uint8_t luma = self->colors[palette_index].luma; + *color = luma >> (8 - colorspace->depth); + // Chroma 0 means the color is a gray and has no hue so never color based on it. + if (self->colors[palette_index].chroma <= 16) { + if (!colorspace->grayscale) { + *color = 0; + } + return true; + } + uint8_t pixel_hue = self->colors[palette_index].hue; + displayio_colorconverter_compute_tricolor(colorspace, pixel_hue, luma, color); + } else if (colorspace->grayscale) { *color = self->colors[palette_index].luma >> (8 - colorspace->depth); } else { *color = self->colors[palette_index].rgb565; diff --git a/shared-module/displayio/Palette.h b/shared-module/displayio/Palette.h index a917e2432..1cfdd199a 100644 --- a/shared-module/displayio/Palette.h +++ b/shared-module/displayio/Palette.h @@ -34,17 +34,21 @@ typedef struct { uint8_t depth; + uint8_t bytes_per_cell; + uint8_t tricolor_hue; + uint8_t tricolor_luma; bool grayscale; + bool tricolor; bool pixels_in_byte_share_row; - uint8_t bytes_per_cell; bool reverse_pixels_in_byte; - uint8_t hue; } _displayio_colorspace_t; typedef struct { uint32_t rgb888; uint16_t rgb565; uint8_t luma; + uint8_t hue; + uint8_t chroma; bool transparent; // This may have additional bits added later for blending. } _displayio_color_t; diff --git a/shared-module/displayio/TileGrid.c b/shared-module/displayio/TileGrid.c index 6144f8f99..6553cf901 100644 --- a/shared-module/displayio/TileGrid.c +++ b/shared-module/displayio/TileGrid.c @@ -443,6 +443,7 @@ bool displayio_tilegrid_fill_area(displayio_tilegrid_t *self, const _displayio_c } uint8_t shift = (offset % pixels_per_byte) * colorspace->depth; if (colorspace->reverse_pixels_in_byte) { + // Reverse the shift by subtracting it from the leftmost shift. 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 3e9c4aa2a..a8f888654 100644 --- a/shared-module/displayio/__init__.c +++ b/shared-module/displayio/__init__.c @@ -133,26 +133,50 @@ void displayio_refresh_displays(void) { // Skip null display. continue; } - displayio_display_obj_t* display = &displays[i].display; - displayio_display_update_backlight(display); - - // Time to refresh at specified frame rate? - if (!displayio_display_frame_queued(display)) { - // Too soon. Try next display. - continue; - } - if (!displayio_display_begin_transaction(display)) { - // Can't acquire display bus; skip updating this display. Try next display. - continue; - } - displayio_display_end_transaction(display); - displayio_display_start_refresh(display); - const displayio_area_t* current_area = displayio_display_get_refresh_areas(display); - while (current_area != NULL) { - refresh_area(display, current_area); - current_area = current_area->next; + if (displays[i].display.base.type == &displayio_display_type) { + displayio_display_obj_t* display = &displays[i].display; + displayio_display_update_backlight(display); + + // Time to refresh at specified frame rate? + if (!displayio_display_frame_queued(display)) { + // Too soon. Try next display. + continue; + } + if (!displayio_display_begin_transaction(display)) { + // Can't acquire display bus; skip updating this display. Try next display. + continue; + } + displayio_display_end_transaction(display); + displayio_display_start_refresh(display); + const displayio_area_t* current_area = displayio_display_get_refresh_areas(display); + while (current_area != NULL) { + refresh_area(display, current_area); + current_area = current_area->next; + } + displayio_display_finish_refresh(display); + } else if (displays[i].epaper_display.base.type == &displayio_epaperdisplay_type) { + displayio_epaperdisplay_obj_t* display = &displays[i].epaper_display; + // Time to refresh at specified frame rate? + if (!displayio_epaperdisplay_frame_queued(display)) { + // Too soon. Try next display. + continue; + } + if (!displayio_epaperdisplay_bus_free(display)) { + // Can't acquire display bus; skip updating this display. Try next display. + continue; + } + const displayio_area_t* current_area = displayio_epaperdisplay_get_refresh_areas(display); + if (current_area == NULL) { + continue; + } + displayio_epaperdisplay_start_refresh(display); + while (current_area != NULL) { + displayio_epaperdisplay_refresh_area(display, current_area); + current_area = current_area->next; + } + displayio_epaperdisplay_finish_refresh(display); } - displayio_display_finish_refresh(display); + frame_count++; } @@ -175,7 +199,14 @@ void common_hal_displayio_release_displays(void) { displays[i].fourwire_bus.base.type = &mp_type_NoneType; } for (uint8_t i = 0; i < CIRCUITPY_DISPLAY_LIMIT; i++) { - release_display(&displays[i].display); + mp_const_obj_t display_type = displays[i].display.base.type; + if (display_type == NULL || display_type == &mp_type_NoneType) { + continue; + } else if (display_type == &displayio_display_type) { + release_display(&displays[i].display); + } else if (display_type == &displayio_epaperdisplay_type) { + release_epaperdisplay(&displays[i].epaper_display); + } displays[i].display.base.type = &mp_type_NoneType; } @@ -232,7 +263,7 @@ void reset_displays(void) { } } } else { - // Not an active display. + // Not an active display bus. continue; } } @@ -240,9 +271,14 @@ void reset_displays(void) { for (uint8_t i = 0; i < CIRCUITPY_DISPLAY_LIMIT; i++) { // 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, NULL); + if (displays[i].display.base.type == &displayio_display_type) { + displayio_display_obj_t* display = &displays[i].display; + display->auto_brightness = true; + common_hal_displayio_display_show(display, NULL); + } else if (displays[i].epaper_display.base.type == &displayio_epaperdisplay_type) { + displayio_epaperdisplay_obj_t* display = &displays[i].epaper_display; + common_hal_displayio_epaperdisplay_show(display, NULL); + } } } @@ -254,8 +290,11 @@ void displayio_gc_collect(void) { // Alternatively, we could use gc_collect_root over the whole object, // but this is more precise, and is the only field that needs marking. - gc_collect_ptr(displays[i].display.current_group); - + if (displays[i].display.base.type == &displayio_display_type) { + gc_collect_ptr(displays[i].display.current_group); + } else if (displays[i].epaper_display.base.type == &displayio_epaperdisplay_type) { + gc_collect_ptr(displays[i].epaper_display.current_group); + } } } diff --git a/shared-module/displayio/__init__.h b/shared-module/displayio/__init__.h index caa5ce36d..95eefbdd9 100644 --- a/shared-module/displayio/__init__.h +++ b/shared-module/displayio/__init__.h @@ -28,6 +28,7 @@ #define MICROPY_INCLUDED_SHARED_MODULE_DISPLAYIO___INIT___H #include "shared-bindings/displayio/Display.h" +#include "shared-bindings/displayio/EPaperDisplay.h" #include "shared-bindings/displayio/FourWire.h" #include "shared-bindings/displayio/Group.h" #include "shared-bindings/displayio/I2CDisplay.h" @@ -39,7 +40,10 @@ typedef struct { displayio_i2cdisplay_obj_t i2cdisplay_bus; displayio_parallelbus_obj_t parallel_bus; }; - displayio_display_obj_t display; + union { + displayio_display_obj_t display; + displayio_epaperdisplay_obj_t epaper_display; + }; } primary_display_t; extern primary_display_t displays[CIRCUITPY_DISPLAY_LIMIT]; |