4a6bdb6fe4
This fixes the bug that bitmap changes do not cause screen updates and optimizes the refresh when the bitmap is simply shown on the screen. If the bitmap is used in tiles, then changing it will cause all TileGrids using it to do a full refresh. Fixes #1981
84 lines
3.3 KiB
C
84 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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uint8_t tiles_in_bitmap;
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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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