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circuitpython/supervisor/shared/display.c

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5.5 KiB

/*
* 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 "supervisor/shared/display.h"
#include <string.h>
#include "py/mpstate.h"
#include "shared-bindings/displayio/Group.h"
#include "shared-bindings/displayio/Palette.h"
#include "shared-bindings/displayio/Sprite.h"
#include "supervisor/memory.h"
extern uint32_t blinka_bitmap_data[];
extern displayio_bitmap_t blinka_bitmap;
extern displayio_group_t circuitpython_splash;
static supervisor_allocation* tilegrid_tiles = NULL;
void supervisor_start_terminal(uint16_t width_px, uint16_t height_px) {
displayio_tilegrid_t* grid = &supervisor_terminal_text_grid;
uint16_t width_in_tiles = (width_px - blinka_bitmap.width) / grid->tile_width;
// determine scale based on h
uint8_t scale = 1;
if (width_in_tiles > 80) {
scale = 2;
}
width_in_tiles = (width_px - blinka_bitmap.width * scale) / (grid->tile_width * scale);
uint16_t height_in_tiles = height_px / (grid->tile_height * scale);
circuitpython_splash.scale = scale;
uint16_t total_tiles = width_in_tiles * height_in_tiles;
// First try to allocate outside the heap. This will fail when the VM is running.
tilegrid_tiles = allocate_memory(total_tiles, false);
uint8_t* tiles;
if (tilegrid_tiles == NULL) {
tiles = m_malloc(total_tiles, true);
MP_STATE_VM(terminal_tilegrid_tiles) = tiles;
} else {
tiles = (uint8_t*) tilegrid_tiles->ptr;
}
if (tiles == NULL) {
return;
}
grid->width_in_tiles = width_in_tiles;
grid->height_in_tiles = height_in_tiles;
grid->total_width = width_in_tiles * grid->tile_width;
grid->total_height = height_in_tiles * grid->tile_height;
grid->tiles = tiles;
supervisor_terminal.cursor_x = 0;
supervisor_terminal.cursor_y = 0;
}
void supervisor_stop_terminal(void) {
if (tilegrid_tiles != NULL) {
free_memory(tilegrid_tiles);
supervisor_terminal_text_grid.inline_tiles = false;
supervisor_terminal_text_grid.tiles = NULL;
}
}
void supervisor_display_move_memory(void) {
displayio_tilegrid_t* grid = &supervisor_terminal_text_grid;
if (MP_STATE_VM(terminal_tilegrid_tiles) == NULL || grid->tiles != MP_STATE_VM(terminal_tilegrid_tiles)) {
return;
}
uint16_t total_tiles = grid->width_in_tiles * grid->height_in_tiles;
tilegrid_tiles = allocate_memory(total_tiles, false);
if (tilegrid_tiles != NULL) {
memcpy(tilegrid_tiles->ptr, grid->tiles, total_tiles);
grid->tiles = (uint8_t*) tilegrid_tiles->ptr;
} else {
grid->tiles = NULL;
grid->inline_tiles = false;
}
MP_STATE_VM(terminal_tilegrid_tiles) = NULL;
}
uint32_t blinka_bitmap_data[32] = {
0x00000011, 0x11000000,
0x00000111, 0x53100000,
0x00000111, 0x56110000,
0x00000111, 0x11140000,
0x00000111, 0x20002000,
0x00000011, 0x13000000,
0x00000001, 0x11200000,
0x00000000, 0x11330000,
0x00000000, 0x01122000,
0x00001111, 0x44133000,
0x00032323, 0x24112200,
0x00111114, 0x44113300,
0x00323232, 0x34112200,
0x11111144, 0x44443300,
0x11111111, 0x11144401,
0x23232323, 0x21111110
};
displayio_bitmap_t blinka_bitmap = {
.base = {.type = &displayio_bitmap_type },
.width = 16,
.height = 16,
.data = blinka_bitmap_data,
.stride = 2,
.bits_per_value = 4,
.x_shift = 3,
.x_mask = 0x7,
.bitmask = 0xf
};
uint32_t blinka_transparency[1] = {0x80000000};
// These colors are RGB 565 with the bytes swapped.
uint32_t blinka_colors[8] = {0x78890000, 0x9F86B8FC, 0xffff0D5A, 0x0000f501,
0x00000000, 0x00000000, 0x00000000, 0x00000000};
displayio_palette_t blinka_palette = {
.base = {.type = &displayio_palette_type },
.opaque = blinka_transparency,
.colors = blinka_colors,
.color_count = 16,
.needs_refresh = false
};
displayio_sprite_t blinka_sprite = {
.base = {.type = &displayio_sprite_type },
.bitmap = &blinka_bitmap,
.pixel_shader = &blinka_palette,
.x = 0,
.y = 0,
.width = 16,
.height = 16,
.needs_refresh = false
};
mp_obj_t splash_children[2] = {
&blinka_sprite,
&supervisor_terminal_text_grid
};
displayio_group_t circuitpython_splash = {
.base = {.type = &displayio_group_type },
.x = 0,
.y = 0,
.scale = 2,
.size = 2,
.max_size = 2,
.children = splash_children,
.needs_refresh = true
};