100 lines
3.8 KiB
C
100 lines
3.8 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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#include "shared-bindings/displayio/Sprite.h"
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#include "shared-bindings/displayio/Bitmap.h"
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#include "shared-bindings/displayio/ColorConverter.h"
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#include "shared-bindings/displayio/OnDiskBitmap.h"
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#include "shared-bindings/displayio/Palette.h"
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void common_hal_displayio_sprite_construct(displayio_sprite_t *self, mp_obj_t bitmap,
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mp_obj_t pixel_shader, uint16_t width, uint16_t height, uint16_t x, uint16_t y) {
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self->width = width;
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self->height = height;
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self->bitmap = bitmap;
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self->pixel_shader = pixel_shader;
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self->x = x;
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self->y = y;
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}
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void common_hal_displayio_sprite_get_position(displayio_sprite_t *self, int16_t* x, int16_t* y) {
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*x = self->x;
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*y = self->y;
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}
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void common_hal_displayio_sprite_set_position(displayio_sprite_t *self, int16_t x, int16_t y) {
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self->x = x;
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self->y = y;
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self->needs_refresh = true;
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}
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mp_obj_t common_hal_displayio_sprite_get_pixel_shader(displayio_sprite_t *self) {
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return self->pixel_shader;
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}
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void common_hal_displayio_sprite_set_pixel_shader(displayio_sprite_t *self, mp_obj_t pixel_shader) {
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self->pixel_shader = pixel_shader;
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self->needs_refresh = true;
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}
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bool displayio_sprite_get_pixel(displayio_sprite_t *self, int16_t x, int16_t y, uint16_t* pixel) {
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x -= self->x;
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y -= self->y;
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if (y < 0 || y >= self->height || x >= self->width || x < 0) {
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return false;
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}
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uint32_t value = 0;
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if (MP_OBJ_IS_TYPE(self->bitmap, &displayio_bitmap_type)) {
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value = common_hal_displayio_bitmap_get_pixel(self->bitmap, x, y);
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} else if (MP_OBJ_IS_TYPE(self->bitmap, &displayio_ondiskbitmap_type)) {
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value = common_hal_displayio_ondiskbitmap_get_pixel(self->bitmap, x, y);
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}
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if (self->pixel_shader == mp_const_none) {
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*pixel = value;
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return true;
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} else if (MP_OBJ_IS_TYPE(self->pixel_shader, &displayio_palette_type) && displayio_palette_get_color(self->pixel_shader, value, pixel)) {
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return true;
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} else if (MP_OBJ_IS_TYPE(self->pixel_shader, &displayio_colorconverter_type) && common_hal_displayio_colorconverter_convert(self->pixel_shader, value, pixel)) {
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return true;
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}
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return false;
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}
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bool displayio_sprite_needs_refresh(displayio_sprite_t *self) {
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return self->needs_refresh || displayio_palette_needs_refresh(self->pixel_shader);
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}
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void displayio_sprite_finish_refresh(displayio_sprite_t *self) {
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self->needs_refresh = false;
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displayio_palette_finish_refresh(self->pixel_shader);
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// TODO(tannewt): We could double buffer changes to position and move them over here.
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// That way they won't change during a refresh and tear.
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}
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