Hook up the terminal based on the first display.

1 files changed, 177 insertions, 0 deletions

diff --git a/supervisor/shared/display.c b/supervisor/shared/display.c
new file mode 100644
index 000000000..18693266f
--- /dev/null
+++ b/supervisor/shared/display.c
@@ -0,0 +1,177 @@
+/*
+ * 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
+};