circuitpython/supervisor/shared/display.c
Radomir Dopieralski 93ea1bd9bd Add a flag for removing the Blinka logo from the REPL
There may be several reasons why we might want to remove the logo form
the REPL: a fork of CircuitPython that doesn't have the right to use the
logo, an especially small display that needs all the room it has to be
useful, displays that are especially vulnerable to burn-in, maybe even
the smaller chips where we want to save as much flash memory as
possible.
2022-03-05 15:38:59 +01:00

348 lines
9.6 KiB
C

/*
* 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/Bitmap.h"
#include "shared-bindings/displayio/Group.h"
#include "shared-bindings/displayio/Palette.h"
#include "shared-bindings/displayio/TileGrid.h"
#include "supervisor/memory.h"
#if CIRCUITPY_RGBMATRIX
#include "shared-module/displayio/__init__.h"
#endif
#if CIRCUITPY_SHARPDISPLAY
#include "shared-module/displayio/__init__.h"
#include "shared-bindings/sharpdisplay/SharpMemoryFramebuffer.h"
#include "shared-module/sharpdisplay/SharpMemoryFramebuffer.h"
#endif
#if CIRCUITPY_REPL_LOGO
extern uint32_t blinka_bitmap_data[];
extern displayio_bitmap_t blinka_bitmap;
#endif
extern displayio_group_t circuitpython_splash;
#if CIRCUITPY_TERMINALIO
static supervisor_allocation *tilegrid_tiles = NULL;
#endif
void supervisor_start_terminal(uint16_t width_px, uint16_t height_px) {
// Default the scale to 2 because we may show blinka without the terminal for
// languages that don't have font support.
uint8_t scale = 2;
#if CIRCUITPY_TERMINALIO
displayio_tilegrid_t *grid = &supervisor_terminal_text_grid;
bool tall = height_px > width_px;
bool reset_tiles = false;
#if CIRCUITPY_REPL_LOGO
uint16_t terminal_width_px = tall ? width_px : width_px - blinka_bitmap.width;
uint16_t terminal_height_px = tall ? height_px - blinka_bitmap.height : height_px;
#else
uint16_t terminal_width_px = width_px;
uint16_t terminal_height_px = height_px;
#endif
uint16_t width_in_tiles = terminal_width_px / grid->tile_width;
// determine scale based on h
if (width_in_tiles < 80) {
scale = 1;
}
width_in_tiles = terminal_width_px / (grid->tile_width * scale);
if (width_in_tiles < 1) {
width_in_tiles = 1;
}
uint16_t height_in_tiles = terminal_height_px / (grid->tile_height * scale);
uint16_t remaining_pixels = tall ? 0 : terminal_height_px % (grid->tile_height * scale);
if (height_in_tiles < 1 || remaining_pixels > 0) {
height_in_tiles += 1;
}
uint16_t total_tiles = width_in_tiles * height_in_tiles;
// check if the terminal tile dimensions are the same
if ((grid->width_in_tiles != width_in_tiles) ||
(grid->height_in_tiles != height_in_tiles)) {
reset_tiles = true;
}
// Reuse the previous allocation if possible
if (tilegrid_tiles) {
if (get_allocation_length(tilegrid_tiles) != align32_size(total_tiles)) {
free_memory(tilegrid_tiles);
tilegrid_tiles = NULL;
reset_tiles = true;
}
}
if (!tilegrid_tiles) {
tilegrid_tiles = allocate_memory(align32_size(total_tiles), false, true);
reset_tiles = true;
if (!tilegrid_tiles) {
return;
}
}
if (reset_tiles) {
uint8_t *tiles = (uint8_t *)tilegrid_tiles->ptr;
#if CIRCUITPY_REPL_LOGO
grid->y = tall ? blinka_bitmap.height : 0;
grid->x = tall ? 0 : blinka_bitmap.width;
#else
grid->y = 0;
grid->x = 0;
#endif
grid->top_left_y = 0;
if (remaining_pixels > 0) {
grid->y -= (grid->tile_height - remaining_pixels);
}
grid->width_in_tiles = width_in_tiles;
grid->height_in_tiles = height_in_tiles;
assert(width_in_tiles > 0);
assert(height_in_tiles > 0);
grid->pixel_width = width_in_tiles * grid->tile_width;
grid->pixel_height = height_in_tiles * grid->tile_height;
grid->tiles = tiles;
grid->full_change = true;
common_hal_terminalio_terminal_construct(&supervisor_terminal, grid, &supervisor_terminal_font);
}
#endif
circuitpython_splash.scale = scale;
}
void supervisor_stop_terminal(void) {
#if CIRCUITPY_TERMINALIO
if (tilegrid_tiles != NULL) {
free_memory(tilegrid_tiles);
tilegrid_tiles = NULL;
supervisor_terminal_text_grid.tiles = NULL;
supervisor_terminal.tilegrid = NULL;
}
#endif
}
void supervisor_display_move_memory(void) {
#if CIRCUITPY_TERMINALIO
if (tilegrid_tiles != NULL) {
supervisor_terminal_text_grid.tiles = (uint8_t *)tilegrid_tiles->ptr;
} else {
supervisor_terminal_text_grid.tiles = NULL;
}
#endif
#if CIRCUITPY_DISPLAYIO
for (uint8_t i = 0; i < CIRCUITPY_DISPLAY_LIMIT; i++) {
#if CIRCUITPY_RGBMATRIX
if (displays[i].rgbmatrix.base.type == &rgbmatrix_RGBMatrix_type) {
rgbmatrix_rgbmatrix_obj_t *pm = &displays[i].rgbmatrix;
common_hal_rgbmatrix_rgbmatrix_reconstruct(pm, NULL);
}
#endif
#if CIRCUITPY_SHARPDISPLAY
if (displays[i].bus_base.type == &sharpdisplay_framebuffer_type) {
sharpdisplay_framebuffer_obj_t *sharp = &displays[i].sharpdisplay;
common_hal_sharpdisplay_framebuffer_reconstruct(sharp);
}
#endif
}
#endif
}
#if CIRCUITPY_REPL_LOGO
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,
.read_only = true
};
_displayio_color_t blinka_colors[7] = {
{
.rgb888 = 0x000000,
.rgb565 = 0x0000,
.luma = 0x00,
.chroma = 0,
.transparent = true
},
{
.rgb888 = 0x8428bc,
.rgb565 = 0x8978,
.luma = 0xff, // We cheat the luma here. It is actually 0x60
.hue = 184,
.chroma = 148
},
{
.rgb888 = 0xff89bc,
.rgb565 = 0xFCB8,
.luma = 0xb5,
.hue = 222,
.chroma = 118
},
{
.rgb888 = 0x7beffe,
.rgb565 = 0x869F,
.luma = 0xe0,
.hue = 124,
.chroma = 131
},
{
.rgb888 = 0x51395f,
.rgb565 = 0x5A0D,
.luma = 0x47,
.hue = 185,
.chroma = 38
},
{
.rgb888 = 0xffffff,
.rgb565 = 0xffff,
.luma = 0xff,
.chroma = 0
},
{
.rgb888 = 0x0736a0,
.rgb565 = 0x01f5,
.luma = 0x44,
.hue = 147,
.chroma = 153
},
};
displayio_palette_t blinka_palette = {
.base = {.type = &displayio_palette_type },
.colors = blinka_colors,
.color_count = 7,
.needs_refresh = false
};
displayio_tilegrid_t blinka_sprite = {
.base = {.type = &displayio_tilegrid_type },
.bitmap = &blinka_bitmap,
.pixel_shader = &blinka_palette,
.x = 0,
.y = 0,
.pixel_width = 16,
.pixel_height = 16,
.bitmap_width_in_tiles = 1,
.width_in_tiles = 1,
.height_in_tiles = 1,
.tile_width = 16,
.tile_height = 16,
.top_left_x = 16,
.top_left_y = 16,
.tiles = 0,
.partial_change = false,
.full_change = false,
.hidden = false,
.hidden_by_parent = false,
.moved = false,
.inline_tiles = true,
.in_group = true
};
#endif
#if CIRCUITPY_TERMINALIO
#if CIRCUITPY_REPL_LOGO
mp_obj_t members[] = { &blinka_sprite, &supervisor_terminal_text_grid, };
mp_obj_list_t splash_children = {
.base = {.type = &mp_type_list },
.alloc = 2,
.len = 2,
.items = members,
};
#else
mp_obj_t members[] = { &supervisor_terminal_text_grid, };
mp_obj_list_t splash_children = {
.base = {.type = &mp_type_list },
.alloc = 1,
.len = 1,
.items = members,
};
#endif
#else
#if CIRCUITPY_REPL_LOGO
mp_obj_t members[] = { &blinka_sprite };
mp_obj_list_t splash_children = {
.base = {.type = &mp_type_list },
.alloc = 1,
.len = 1,
.items = members,
};
#else
mp_obj_t members[] = {};
mp_obj_list_t splash_children = {
.base = {.type = &mp_type_list },
.alloc = 0,
.len = 0,
.items = members,
};
#endif
#endif
displayio_group_t circuitpython_splash = {
.base = {.type = &displayio_group_type },
.x = 0,
.y = 0,
.scale = 2,
.members = &splash_children,
.item_removed = false,
.in_group = false,
.hidden = false,
.hidden_by_parent = false
};