83 lines
3.3 KiB
C
83 lines
3.3 KiB
C
/*
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* This file is part of the Micro Python project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2019 Scott Shawcroft for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef MICROPY_INCLUDED_SHARED_MODULE_DISPLAYIO_TILEGRID_H
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#define MICROPY_INCLUDED_SHARED_MODULE_DISPLAYIO_TILEGRID_H
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#include <stdbool.h>
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#include <stdint.h>
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#include "py/obj.h"
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#include "shared-module/displayio/area.h"
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typedef struct {
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mp_obj_base_t base;
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mp_obj_t bitmap;
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mp_obj_t pixel_shader;
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int16_t x;
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int16_t y;
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uint16_t pixel_width;
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uint16_t pixel_height;
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uint16_t bitmap_width_in_tiles;
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uint16_t width_in_tiles;
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uint16_t height_in_tiles;
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uint16_t tile_width;
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uint16_t tile_height;
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uint16_t top_left_x;
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uint16_t top_left_y;
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uint8_t* tiles;
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const displayio_buffer_transform_t* absolute_transform;
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displayio_area_t dirty_area; // Stored as a relative area until the refresh area is fetched.
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displayio_area_t previous_area; // Stored as an absolute area.
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displayio_area_t current_area; // Stored as an absolute area so it applies across frames.
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bool partial_change;
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bool full_change;
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bool first_draw;
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bool moved;
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bool inline_tiles;
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bool in_group;
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bool flip_x;
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bool flip_y;
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bool transpose_xy;
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} displayio_tilegrid_t;
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// Updating the screen is a three stage process.
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// The first stage is used to determine i
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displayio_area_t* displayio_tilegrid_get_refresh_areas(displayio_tilegrid_t *self, displayio_area_t* tail);
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// Area is always in absolute screen coordinates. Update transform is used to inform TileGrids how
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// they relate to it.
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bool displayio_tilegrid_fill_area(displayio_tilegrid_t *self, const displayio_area_t* area, uint32_t* mask, uint32_t *buffer);
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void displayio_tilegrid_update_transform(displayio_tilegrid_t *group, const displayio_buffer_transform_t* parent_transform);
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// Fills in area with the maximum bounds of all related pixels in the last rendered frame. Returns
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// false if the tilegrid wasn't rendered in the last frame.
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bool displayio_tilegrid_get_previous_area(displayio_tilegrid_t *self, displayio_area_t* area);
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void displayio_tilegrid_finish_refresh(displayio_tilegrid_t *self);
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#endif // MICROPY_INCLUDED_SHARED_MODULE_DISPLAYIO_TILEGRID_H
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