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// This file is part of the CircuitPython project: https://circuitpython.org
//
// SPDX-FileCopyrightText: Copyright (c) 2018 Scott Shawcroft for Adafruit Industries
// SPDX-FileCopyrightText: Copyright (c) 2020 Jeff Epler for Adafruit Industries
//
// SPDX-License-Identifier: MIT
#include "shared-bindings/framebufferio/FramebufferDisplay.h"
#include <stdint.h>
#include "shared/runtime/context_manager_helpers.h"
#include "py/binary.h"
#include "py/objproperty.h"
#include "py/objtype.h"
#include "py/runtime.h"
#include "shared-bindings/displayio/Group.h"
#include "shared-bindings/microcontroller/Pin.h"
#include "shared-bindings/util.h"
#include "shared-module/displayio/__init__.h"
//| class FramebufferDisplay:
//| """Manage updating a display with framebuffer in RAM
//|
//| This initializes a display and connects it into CircuitPython. Unlike other
//| objects in CircuitPython, Display objects live until `displayio.release_displays()`
//| is called. This is done so that CircuitPython can use the display itself."""
//|
//| def __init__(
//| self,
//| framebuffer: circuitpython_typing.FrameBuffer,
//| *,
//| rotation: int = 0,
//| auto_refresh: bool = True
//| ) -> None:
//| """Create a Display object with the given framebuffer (a buffer, array, ulab.array, etc)
//|
//| :param ~circuitpython_typing.FrameBuffer framebuffer: The framebuffer that the display is connected to
//| :param bool auto_refresh: Automatically refresh the screen
//| :param int rotation: The rotation of the display in degrees clockwise. Must be in 90 degree increments (0, 90, 180, 270)
//| """
//| ...
static mp_obj_t framebufferio_framebufferdisplay_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *all_args) {
enum { ARG_framebuffer, ARG_rotation, ARG_auto_refresh, NUM_ARGS };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_framebuffer, MP_ARG_REQUIRED | MP_ARG_OBJ },
{ MP_QSTR_rotation, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 0} },
{ MP_QSTR_auto_refresh, MP_ARG_BOOL | MP_ARG_KW_ONLY, {.u_bool = true} },
};
MP_STATIC_ASSERT(MP_ARRAY_SIZE(allowed_args) == NUM_ARGS);
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all_kw_array(n_args, n_kw, all_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
mp_obj_t framebuffer = args[ARG_framebuffer].u_obj;
mp_int_t rotation = args[ARG_rotation].u_int;
if (rotation % 90 != 0) {
mp_raise_ValueError(MP_ERROR_TEXT("Display rotation must be in 90 degree increments"));
}
primary_display_t *disp = allocate_display_or_raise();
framebufferio_framebufferdisplay_obj_t *self = &disp->framebuffer_display;
self->base.type = &framebufferio_framebufferdisplay_type;
common_hal_framebufferio_framebufferdisplay_construct(
self,
framebuffer,
rotation,
args[ARG_auto_refresh].u_bool
);
return self;
}
// Helper to ensure we have the native super class instead of a subclass.
static framebufferio_framebufferdisplay_obj_t *native_display(mp_obj_t display_obj) {
mp_obj_t native_display = mp_obj_cast_to_native_base(display_obj, &framebufferio_framebufferdisplay_type);
mp_obj_assert_native_inited(native_display);
return MP_OBJ_TO_PTR(native_display);
}
// Undocumented show() implementation with a friendly error message.
static mp_obj_t framebufferio_framebufferdisplay_obj_show(mp_obj_t self_in, mp_obj_t group_in) {
mp_raise_AttributeError(MP_ERROR_TEXT(".show(x) removed. Use .root_group = x"));
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_2(framebufferio_framebufferdisplay_show_obj, framebufferio_framebufferdisplay_obj_show);
//| def refresh(
//| self,
//| *,
//| target_frames_per_second: Optional[int] = None,
//| minimum_frames_per_second: int = 0
//| ) -> bool:
//| """When auto_refresh is off, and :py:attr:`target_frames_per_second` is not `None` this waits
//| for the target frame rate and then refreshes the display,
//| returning `True`. If the call has taken too long since the last refresh call for the given
//| target frame rate, then the refresh returns `False` immediately without updating the screen to
//| hopefully help getting caught up.
//|
//| If the time since the last successful refresh is below the minimum frame rate, then an
//| exception will be raised. The default :py:attr:`minimum_frames_per_second` of 0 disables this behavior.
//|
//| When auto_refresh is off, and :py:attr:`target_frames_per_second` is `None` this
//| will update the display immediately.
//|
//| When auto_refresh is on, updates the display immediately. (The display will also update
//| without calls to this.)
//|
//| :param Optional[int] target_frames_per_second: The target frame rate that :py:func:`refresh` should try to
//| achieve. Set to `None` for immediate refresh.
//| :param int minimum_frames_per_second: The minimum number of times the screen should be updated per second.
//| """
//| ...
static mp_obj_t framebufferio_framebufferdisplay_obj_refresh(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
enum { ARG_target_frames_per_second, ARG_minimum_frames_per_second };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_target_frames_per_second, MP_ARG_OBJ | MP_ARG_KW_ONLY, {.u_obj = mp_const_none} },
{ MP_QSTR_minimum_frames_per_second, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
};
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
framebufferio_framebufferdisplay_obj_t *self = native_display(pos_args[0]);
uint32_t maximum_ms_per_real_frame = NO_FPS_LIMIT;
mp_int_t minimum_frames_per_second = args[ARG_minimum_frames_per_second].u_int;
if (minimum_frames_per_second > 0) {
maximum_ms_per_real_frame = 1000 / minimum_frames_per_second;
}
uint32_t target_ms_per_frame;
if (args[ARG_target_frames_per_second].u_obj == mp_const_none) {
target_ms_per_frame = NO_FPS_LIMIT;
} else {
target_ms_per_frame = 1000 / mp_obj_get_int(args[ARG_target_frames_per_second].u_obj);
}
return mp_obj_new_bool(common_hal_framebufferio_framebufferdisplay_refresh(self, target_ms_per_frame, maximum_ms_per_real_frame));
}
MP_DEFINE_CONST_FUN_OBJ_KW(framebufferio_framebufferdisplay_refresh_obj, 1, framebufferio_framebufferdisplay_obj_refresh);
//| auto_refresh: bool
//| """True when the display is refreshed automatically."""
static mp_obj_t framebufferio_framebufferdisplay_obj_get_auto_refresh(mp_obj_t self_in) {
framebufferio_framebufferdisplay_obj_t *self = native_display(self_in);
return mp_obj_new_bool(common_hal_framebufferio_framebufferdisplay_get_auto_refresh(self));
}
MP_DEFINE_CONST_FUN_OBJ_1(framebufferio_framebufferdisplay_get_auto_refresh_obj, framebufferio_framebufferdisplay_obj_get_auto_refresh);
static mp_obj_t framebufferio_framebufferdisplay_obj_set_auto_refresh(mp_obj_t self_in, mp_obj_t auto_refresh) {
framebufferio_framebufferdisplay_obj_t *self = native_display(self_in);
common_hal_framebufferio_framebufferdisplay_set_auto_refresh(self, mp_obj_is_true(auto_refresh));
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_2(framebufferio_framebufferdisplay_set_auto_refresh_obj, framebufferio_framebufferdisplay_obj_set_auto_refresh);
MP_PROPERTY_GETSET(framebufferio_framebufferdisplay_auto_refresh_obj,
(mp_obj_t)&framebufferio_framebufferdisplay_get_auto_refresh_obj,
(mp_obj_t)&framebufferio_framebufferdisplay_set_auto_refresh_obj);
//| brightness: float
//| """The brightness of the display as a float. 0.0 is off and 1.0 is full brightness."""
static mp_obj_t framebufferio_framebufferdisplay_obj_get_brightness(mp_obj_t self_in) {
framebufferio_framebufferdisplay_obj_t *self = native_display(self_in);
mp_float_t brightness = common_hal_framebufferio_framebufferdisplay_get_brightness(self);
if (brightness < 0) {
mp_raise_RuntimeError(MP_ERROR_TEXT("Brightness not adjustable"));
}
return mp_obj_new_float(brightness);
}
MP_DEFINE_CONST_FUN_OBJ_1(framebufferio_framebufferdisplay_get_brightness_obj, framebufferio_framebufferdisplay_obj_get_brightness);
static mp_obj_t framebufferio_framebufferdisplay_obj_set_brightness(mp_obj_t self_in, mp_obj_t brightness_obj) {
framebufferio_framebufferdisplay_obj_t *self = native_display(self_in);
mp_float_t brightness = mp_obj_get_float(brightness_obj);
if (brightness < 0.0f || brightness > 1.0f) {
mp_raise_ValueError_varg(MP_ERROR_TEXT("%q must be %d-%d"), MP_QSTR_brightness, 0, 1);
}
bool ok = common_hal_framebufferio_framebufferdisplay_set_brightness(self, brightness);
if (!ok) {
mp_raise_RuntimeError(MP_ERROR_TEXT("Brightness not adjustable"));
}
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_2(framebufferio_framebufferdisplay_set_brightness_obj, framebufferio_framebufferdisplay_obj_set_brightness);
MP_PROPERTY_GETSET(framebufferio_framebufferdisplay_brightness_obj,
(mp_obj_t)&framebufferio_framebufferdisplay_get_brightness_obj,
(mp_obj_t)&framebufferio_framebufferdisplay_set_brightness_obj);
//| width: int
//| """Gets the width of the framebuffer"""
static mp_obj_t framebufferio_framebufferdisplay_obj_get_width(mp_obj_t self_in) {
framebufferio_framebufferdisplay_obj_t *self = native_display(self_in);
return MP_OBJ_NEW_SMALL_INT(common_hal_framebufferio_framebufferdisplay_get_width(self));
}
MP_DEFINE_CONST_FUN_OBJ_1(framebufferio_framebufferdisplay_get_width_obj, framebufferio_framebufferdisplay_obj_get_width);
MP_PROPERTY_GETTER(framebufferio_framebufferdisplay_width_obj,
(mp_obj_t)&framebufferio_framebufferdisplay_get_width_obj);
//| height: int
//| """Gets the height of the framebuffer"""
static mp_obj_t framebufferio_framebufferdisplay_obj_get_height(mp_obj_t self_in) {
framebufferio_framebufferdisplay_obj_t *self = native_display(self_in);
return MP_OBJ_NEW_SMALL_INT(common_hal_framebufferio_framebufferdisplay_get_height(self));
}
MP_DEFINE_CONST_FUN_OBJ_1(framebufferio_framebufferdisplay_get_height_obj, framebufferio_framebufferdisplay_obj_get_height);
MP_PROPERTY_GETTER(framebufferio_framebufferdisplay_height_obj,
(mp_obj_t)&framebufferio_framebufferdisplay_get_height_obj);
//| rotation: int
//| """The rotation of the display as an int in degrees."""
static mp_obj_t framebufferio_framebufferdisplay_obj_get_rotation(mp_obj_t self_in) {
framebufferio_framebufferdisplay_obj_t *self = native_display(self_in);
return MP_OBJ_NEW_SMALL_INT(common_hal_framebufferio_framebufferdisplay_get_rotation(self));
}
MP_DEFINE_CONST_FUN_OBJ_1(framebufferio_framebufferdisplay_get_rotation_obj, framebufferio_framebufferdisplay_obj_get_rotation);
static mp_obj_t framebufferio_framebufferdisplay_obj_set_rotation(mp_obj_t self_in, mp_obj_t value) {
framebufferio_framebufferdisplay_obj_t *self = native_display(self_in);
common_hal_framebufferio_framebufferdisplay_set_rotation(self, mp_obj_get_int(value));
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_2(framebufferio_framebufferdisplay_set_rotation_obj, framebufferio_framebufferdisplay_obj_set_rotation);
MP_PROPERTY_GETSET(framebufferio_framebufferdisplay_rotation_obj,
(mp_obj_t)&framebufferio_framebufferdisplay_get_rotation_obj,
(mp_obj_t)&framebufferio_framebufferdisplay_set_rotation_obj);
//| framebuffer: circuitpython_typing.FrameBuffer
//| """The framebuffer being used by the display"""
static mp_obj_t framebufferio_framebufferdisplay_obj_get_framebuffer(mp_obj_t self_in) {
framebufferio_framebufferdisplay_obj_t *self = native_display(self_in);
return common_hal_framebufferio_framebufferdisplay_get_framebuffer(self);
}
MP_DEFINE_CONST_FUN_OBJ_1(framebufferio_framebufferdisplay_get_framebuffer_obj, framebufferio_framebufferdisplay_obj_get_framebuffer);
MP_PROPERTY_GETTER(framebufferio_framebufferframebuffer_obj,
(mp_obj_t)&framebufferio_framebufferdisplay_get_framebuffer_obj);
//| def fill_row(self, y: int, buffer: WriteableBuffer) -> WriteableBuffer:
//| """Extract the pixels from a single row
//|
//| :param int y: The top edge of the area
//| :param ~circuitpython_typing.WriteableBuffer buffer: The buffer in which to place the pixel data
//| """
//| ...
static mp_obj_t framebufferio_framebufferdisplay_obj_fill_row(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
enum { ARG_y, ARG_buffer };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_y, MP_ARG_INT | MP_ARG_REQUIRED, {.u_int = -1} },
{ MP_QSTR_buffer, MP_ARG_OBJ | MP_ARG_REQUIRED, {} },
};
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
framebufferio_framebufferdisplay_obj_t *self = native_display(pos_args[0]);
mp_int_t y = args[ARG_y].u_int;
mp_obj_t *result = args[ARG_buffer].u_obj;
mp_buffer_info_t bufinfo;
mp_get_buffer_raise(result, &bufinfo, MP_BUFFER_WRITE);
if (bufinfo.typecode != BYTEARRAY_TYPECODE) {
mp_raise_ValueError(MP_ERROR_TEXT("Buffer is not a bytearray."));
}
if (self->core.colorspace.depth != 16) {
mp_raise_ValueError(MP_ERROR_TEXT("Display must have a 16 bit colorspace."));
}
displayio_area_t area = {
.x1 = 0,
.y1 = y,
.x2 = self->core.width,
.y2 = y + 1
};
uint8_t pixels_per_word = (sizeof(uint32_t) * 8) / self->core.colorspace.depth;
uint16_t buffer_size = self->core.width / pixels_per_word;
uint16_t pixels_per_buffer = displayio_area_size(&area);
if (pixels_per_buffer % pixels_per_word) {
buffer_size += 1;
}
uint32_t *result_buffer = bufinfo.buf;
size_t result_buffer_size = bufinfo.len;
if (result_buffer_size >= (buffer_size * 4)) {
volatile uint32_t mask_length = (pixels_per_buffer / 32) + 1;
uint32_t mask[mask_length];
for (uint16_t k = 0; k < mask_length; k++) {
mask[k] = 0x00000000;
}
displayio_display_core_fill_area(&self->core, &area, mask, result_buffer);
return result;
} else {
mp_raise_ValueError(MP_ERROR_TEXT("Buffer too small"));
}
}
MP_DEFINE_CONST_FUN_OBJ_KW(framebufferio_framebufferdisplay_fill_row_obj, 1, framebufferio_framebufferdisplay_obj_fill_row);
//| root_group: displayio.Group
//| """The root group on the display.
//| If the root group is set to `displayio.CIRCUITPYTHON_TERMINAL`, the default CircuitPython terminal will be shown.
//| If the root group is set to ``None``, no output will be shown.
//| """
//|
static mp_obj_t framebufferio_framebufferdisplay_obj_get_root_group(mp_obj_t self_in) {
framebufferio_framebufferdisplay_obj_t *self = native_display(self_in);
return common_hal_framebufferio_framebufferdisplay_get_root_group(self);
}
MP_DEFINE_CONST_FUN_OBJ_1(framebufferio_framebufferdisplay_get_root_group_obj, framebufferio_framebufferdisplay_obj_get_root_group);
static mp_obj_t framebufferio_framebufferdisplay_obj_set_root_group(mp_obj_t self_in, mp_obj_t group_in) {
framebufferio_framebufferdisplay_obj_t *self = native_display(self_in);
displayio_group_t *group = NULL;
if (group_in != mp_const_none) {
group = MP_OBJ_TO_PTR(native_group(group_in));
}
bool ok = common_hal_framebufferio_framebufferdisplay_set_root_group(self, group);
if (!ok) {
mp_raise_ValueError(MP_ERROR_TEXT("Group already used"));
}
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_2(framebufferio_framebufferdisplay_set_root_group_obj, framebufferio_framebufferdisplay_obj_set_root_group);
MP_PROPERTY_GETSET(framebufferio_framebufferdisplay_root_group_obj,
(mp_obj_t)&framebufferio_framebufferdisplay_get_root_group_obj,
(mp_obj_t)&framebufferio_framebufferdisplay_set_root_group_obj);
static const mp_rom_map_elem_t framebufferio_framebufferdisplay_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_show), MP_ROM_PTR(&framebufferio_framebufferdisplay_show_obj) },
{ MP_ROM_QSTR(MP_QSTR_refresh), MP_ROM_PTR(&framebufferio_framebufferdisplay_refresh_obj) },
{ MP_ROM_QSTR(MP_QSTR_fill_row), MP_ROM_PTR(&framebufferio_framebufferdisplay_fill_row_obj) },
{ MP_ROM_QSTR(MP_QSTR_auto_refresh), MP_ROM_PTR(&framebufferio_framebufferdisplay_auto_refresh_obj) },
{ MP_ROM_QSTR(MP_QSTR_brightness), MP_ROM_PTR(&framebufferio_framebufferdisplay_brightness_obj) },
{ MP_ROM_QSTR(MP_QSTR_width), MP_ROM_PTR(&framebufferio_framebufferdisplay_width_obj) },
{ MP_ROM_QSTR(MP_QSTR_height), MP_ROM_PTR(&framebufferio_framebufferdisplay_height_obj) },
{ MP_ROM_QSTR(MP_QSTR_rotation), MP_ROM_PTR(&framebufferio_framebufferdisplay_rotation_obj) },
{ MP_ROM_QSTR(MP_QSTR_framebuffer), MP_ROM_PTR(&framebufferio_framebufferframebuffer_obj) },
{ MP_ROM_QSTR(MP_QSTR_root_group), MP_ROM_PTR(&framebufferio_framebufferdisplay_root_group_obj) },
};
static MP_DEFINE_CONST_DICT(framebufferio_framebufferdisplay_locals_dict, framebufferio_framebufferdisplay_locals_dict_table);
MP_DEFINE_CONST_OBJ_TYPE(
framebufferio_framebufferdisplay_type,
MP_QSTR_FramebufferDisplay,
MP_TYPE_FLAG_HAS_SPECIAL_ACCESSORS,
make_new, framebufferio_framebufferdisplay_make_new,
locals_dict, &framebufferio_framebufferdisplay_locals_dict
);
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