9df8f235b1
Before, when an OnDiskBitmap was a paletted bitmap type, the palette was internal to the OnDiskBitmap, and it internally performed the palette conversion itself. When using with a tilegrid, a ColorConverter() object always had to be passed. Now, an OnDiskBitmap has a "pixel_shader" property. If the bitmap is a paletted bitmap type, it is a (modifiable) Palette object. Otherwise, it is a ColorConverter() object as before. This allows palette effects to be applied to paletted OnDiskBitmaps. Code that used to say: ```python face = displayio.TileGrid(odb, pixel_shader=displayio.ColorConverter()) ``` must be updated to say: ```python face = displayio.TileGrid(odb, pixel_shader=odb.pixel_shader) ``` Compatible code for 6.x and 7.x can say ```python face = displayio.TileGrid(odb, pixel_shader=getattr(odb, 'pixel_shader', ColorConverter()) ```
44 lines
2.0 KiB
C
44 lines
2.0 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) 2018 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_BINDINGS_DISPLAYIO_ONDISKBITMAP_H
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#define MICROPY_INCLUDED_SHARED_BINDINGS_DISPLAYIO_ONDISKBITMAP_H
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#include "shared-module/displayio/OnDiskBitmap.h"
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#include "extmod/vfs_fat.h"
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extern const mp_obj_type_t displayio_ondiskbitmap_type;
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void common_hal_displayio_ondiskbitmap_construct(displayio_ondiskbitmap_t *self, pyb_file_obj_t *file);
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uint32_t common_hal_displayio_ondiskbitmap_get_pixel(displayio_ondiskbitmap_t *bitmap,
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int16_t x, int16_t y);
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uint16_t common_hal_displayio_ondiskbitmap_get_height(displayio_ondiskbitmap_t *self);
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mp_obj_t common_hal_displayio_ondiskbitmap_get_pixel_shader(displayio_ondiskbitmap_t *self);
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uint16_t common_hal_displayio_ondiskbitmap_get_width(displayio_ondiskbitmap_t *self);
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#endif // MICROPY_INCLUDED_SHARED_BINDINGS_DISPLAYIO_ONDISKBITMAP_H
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