676 lines
26 KiB
C
676 lines
26 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/TileGrid.h"
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#include "py/runtime.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_tilegrid_construct(displayio_tilegrid_t *self, mp_obj_t bitmap,
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uint16_t bitmap_width_in_tiles, uint16_t bitmap_height_in_tiles,
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mp_obj_t pixel_shader, uint16_t width, uint16_t height,
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uint16_t tile_width, uint16_t tile_height, uint16_t x, uint16_t y, uint8_t default_tile) {
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uint32_t total_tiles = width * height;
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// Sprites will only have one tile so save a little memory by inlining values in the pointer.
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uint8_t inline_tiles = sizeof(uint8_t *);
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if (total_tiles <= inline_tiles) {
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self->tiles = 0;
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// Pack values into the pointer since there are only a few.
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for (uint32_t i = 0; i < inline_tiles; i++) {
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((uint8_t *)&self->tiles)[i] = default_tile;
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}
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self->inline_tiles = true;
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} else {
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self->tiles = (uint8_t *)m_malloc(total_tiles);
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for (uint32_t i = 0; i < total_tiles; i++) {
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self->tiles[i] = default_tile;
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}
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self->inline_tiles = false;
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}
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self->bitmap_width_in_tiles = bitmap_width_in_tiles;
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self->tiles_in_bitmap = bitmap_width_in_tiles * bitmap_height_in_tiles;
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self->width_in_tiles = width;
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self->height_in_tiles = height;
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self->x = x;
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self->y = y;
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self->pixel_width = width * tile_width;
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self->pixel_height = height * tile_height;
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self->tile_width = tile_width;
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self->tile_height = tile_height;
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self->bitmap = bitmap;
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self->pixel_shader = pixel_shader;
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self->in_group = false;
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self->hidden = false;
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self->hidden_by_parent = false;
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self->previous_area.x1 = 0xffff;
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self->previous_area.x2 = self->previous_area.x1;
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self->flip_x = false;
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self->flip_y = false;
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self->transpose_xy = false;
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self->absolute_transform = NULL;
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}
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bool common_hal_displayio_tilegrid_get_hidden(displayio_tilegrid_t *self) {
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return self->hidden;
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}
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bool displayio_tilegrid_get_rendered_hidden(displayio_tilegrid_t *self) {
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return self->rendered_hidden;
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}
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void common_hal_displayio_tilegrid_set_hidden(displayio_tilegrid_t *self, bool hidden) {
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self->hidden = hidden;
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self->rendered_hidden = false;
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if (!hidden) {
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self->full_change = true;
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}
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}
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void displayio_tilegrid_set_hidden_by_parent(displayio_tilegrid_t *self, bool hidden) {
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self->hidden_by_parent = hidden;
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self->rendered_hidden = false;
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if (!hidden) {
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self->full_change = true;
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}
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}
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bool displayio_tilegrid_get_previous_area(displayio_tilegrid_t *self, displayio_area_t *area) {
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if (self->previous_area.x1 == self->previous_area.x2) {
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return false;
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}
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displayio_area_copy(&self->previous_area, area);
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return true;
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}
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STATIC void _update_current_x(displayio_tilegrid_t *self) {
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uint16_t width;
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if (self->transpose_xy) {
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width = self->pixel_height;
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} else {
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width = self->pixel_width;
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}
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// If there's no transform, substitute an identity transform so the calculations will work.
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const displayio_buffer_transform_t *absolute_transform =
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self->absolute_transform == NULL
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? &null_transform
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: self->absolute_transform;
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if (absolute_transform->transpose_xy) {
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self->current_area.y1 = absolute_transform->y + absolute_transform->dy * self->x;
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self->current_area.y2 = absolute_transform->y + absolute_transform->dy * (self->x + width);
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if (self->current_area.y2 < self->current_area.y1) {
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int16_t temp = self->current_area.y2;
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self->current_area.y2 = self->current_area.y1;
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self->current_area.y1 = temp;
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}
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} else {
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self->current_area.x1 = absolute_transform->x + absolute_transform->dx * self->x;
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self->current_area.x2 = absolute_transform->x + absolute_transform->dx * (self->x + width);
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if (self->current_area.x2 < self->current_area.x1) {
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int16_t temp = self->current_area.x2;
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self->current_area.x2 = self->current_area.x1;
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self->current_area.x1 = temp;
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}
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}
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}
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STATIC void _update_current_y(displayio_tilegrid_t *self) {
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uint16_t height;
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if (self->transpose_xy) {
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height = self->pixel_width;
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} else {
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height = self->pixel_height;
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}
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// If there's no transform, substitute an identity transform so the calculations will work.
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const displayio_buffer_transform_t *absolute_transform =
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self->absolute_transform == NULL
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? &null_transform
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: self->absolute_transform;
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if (absolute_transform->transpose_xy) {
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self->current_area.x1 = absolute_transform->x + absolute_transform->dx * self->y;
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self->current_area.x2 = absolute_transform->x + absolute_transform->dx * (self->y + height);
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if (self->current_area.x2 < self->current_area.x1) {
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int16_t temp = self->current_area.x2;
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self->current_area.x2 = self->current_area.x1;
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self->current_area.x1 = temp;
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}
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} else {
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self->current_area.y1 = absolute_transform->y + absolute_transform->dy * self->y;
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self->current_area.y2 = absolute_transform->y + absolute_transform->dy * (self->y + height);
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if (self->current_area.y2 < self->current_area.y1) {
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int16_t temp = self->current_area.y2;
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self->current_area.y2 = self->current_area.y1;
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self->current_area.y1 = temp;
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}
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}
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}
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void displayio_tilegrid_update_transform(displayio_tilegrid_t *self,
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const displayio_buffer_transform_t *absolute_transform) {
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self->in_group = absolute_transform != NULL;
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self->absolute_transform = absolute_transform;
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if (absolute_transform != NULL) {
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self->moved = true;
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_update_current_x(self);
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_update_current_y(self);
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}
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}
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mp_int_t common_hal_displayio_tilegrid_get_x(displayio_tilegrid_t *self) {
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return self->x;
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}
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void common_hal_displayio_tilegrid_set_x(displayio_tilegrid_t *self, mp_int_t x) {
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if (self->x == x) {
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return;
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}
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self->moved = true;
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self->x = x;
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if (self->absolute_transform != NULL) {
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_update_current_x(self);
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}
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}
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mp_int_t common_hal_displayio_tilegrid_get_y(displayio_tilegrid_t *self) {
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return self->y;
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}
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void common_hal_displayio_tilegrid_set_y(displayio_tilegrid_t *self, mp_int_t y) {
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if (self->y == y) {
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return;
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}
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self->moved = true;
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self->y = y;
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if (self->absolute_transform != NULL) {
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_update_current_y(self);
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}
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}
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mp_obj_t common_hal_displayio_tilegrid_get_pixel_shader(displayio_tilegrid_t *self) {
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return self->pixel_shader;
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}
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void common_hal_displayio_tilegrid_set_pixel_shader(displayio_tilegrid_t *self, mp_obj_t pixel_shader) {
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self->pixel_shader = pixel_shader;
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self->full_change = true;
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}
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mp_obj_t common_hal_displayio_tilegrid_get_bitmap(displayio_tilegrid_t *self) {
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return self->bitmap;
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}
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void common_hal_displayio_tilegrid_set_bitmap(displayio_tilegrid_t *self, mp_obj_t bitmap) {
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self->bitmap = bitmap;
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self->full_change = true;
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}
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uint16_t common_hal_displayio_tilegrid_get_width(displayio_tilegrid_t *self) {
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return self->width_in_tiles;
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}
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uint16_t common_hal_displayio_tilegrid_get_height(displayio_tilegrid_t *self) {
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return self->height_in_tiles;
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}
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uint16_t common_hal_displayio_tilegrid_get_tile_width(displayio_tilegrid_t *self) {
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return self->tile_width;
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}
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uint16_t common_hal_displayio_tilegrid_get_tile_height(displayio_tilegrid_t *self) {
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return self->tile_height;
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}
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uint8_t common_hal_displayio_tilegrid_get_tile(displayio_tilegrid_t *self, uint16_t x, uint16_t y) {
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uint8_t *tiles = self->tiles;
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if (self->inline_tiles) {
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tiles = (uint8_t *)&self->tiles;
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}
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if (tiles == NULL) {
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return 0;
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}
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return tiles[y * self->width_in_tiles + x];
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}
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void common_hal_displayio_tilegrid_set_tile(displayio_tilegrid_t *self, uint16_t x, uint16_t y, uint8_t tile_index) {
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if (tile_index >= self->tiles_in_bitmap) {
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mp_raise_ValueError(translate("Tile index out of bounds"));
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}
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uint8_t *tiles = self->tiles;
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if (self->inline_tiles) {
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tiles = (uint8_t *)&self->tiles;
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}
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if (tiles == NULL) {
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return;
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}
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tiles[y * self->width_in_tiles + x] = tile_index;
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displayio_area_t temp_area;
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displayio_area_t *tile_area;
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if (!self->partial_change) {
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tile_area = &self->dirty_area;
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} else {
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tile_area = &temp_area;
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}
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int16_t tx = (x - self->top_left_x) % self->width_in_tiles;
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if (tx < 0) {
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tx += self->width_in_tiles;
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}
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tile_area->x1 = tx * self->tile_width;
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tile_area->x2 = tile_area->x1 + self->tile_width;
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int16_t ty = (y - self->top_left_y) % self->height_in_tiles;
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if (ty < 0) {
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ty += self->height_in_tiles;
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}
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tile_area->y1 = ty * self->tile_height;
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tile_area->y2 = tile_area->y1 + self->tile_height;
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if (self->partial_change) {
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displayio_area_union(&self->dirty_area, &temp_area, &self->dirty_area);
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}
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self->partial_change = true;
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}
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void common_hal_displayio_tilegrid_set_all_tiles(displayio_tilegrid_t *self, uint8_t tile_index) {
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if (tile_index >= self->tiles_in_bitmap) {
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mp_raise_ValueError(translate("Tile index out of bounds"));
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}
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uint8_t *tiles = self->tiles;
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if (self->inline_tiles) {
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tiles = (uint8_t *)&self->tiles;
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}
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if (tiles == NULL) {
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return;
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}
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for (uint16_t x = 0; x < self->width_in_tiles; x++) {
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for (uint16_t y = 0; y < self->height_in_tiles; y++) {
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tiles[y * self->width_in_tiles + x] = tile_index;
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}
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}
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self->full_change = true;
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}
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bool common_hal_displayio_tilegrid_get_flip_x(displayio_tilegrid_t *self) {
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return self->flip_x;
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}
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void common_hal_displayio_tilegrid_set_flip_x(displayio_tilegrid_t *self, bool flip_x) {
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if (self->flip_x == flip_x) {
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return;
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}
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self->flip_x = flip_x;
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self->full_change = true;
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}
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bool common_hal_displayio_tilegrid_get_flip_y(displayio_tilegrid_t *self) {
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return self->flip_y;
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}
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void common_hal_displayio_tilegrid_set_flip_y(displayio_tilegrid_t *self, bool flip_y) {
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if (self->flip_y == flip_y) {
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return;
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}
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self->flip_y = flip_y;
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self->full_change = true;
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}
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bool common_hal_displayio_tilegrid_get_transpose_xy(displayio_tilegrid_t *self) {
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return self->transpose_xy;
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}
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void common_hal_displayio_tilegrid_set_transpose_xy(displayio_tilegrid_t *self, bool transpose_xy) {
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if (self->transpose_xy == transpose_xy) {
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return;
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}
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self->transpose_xy = transpose_xy;
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// Square TileGrids do not change dimensions when transposed.
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if (self->pixel_width == self->pixel_height) {
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self->full_change = true;
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return;
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}
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_update_current_x(self);
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_update_current_y(self);
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self->moved = true;
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}
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bool common_hal_displayio_tilegrid_contains(displayio_tilegrid_t *self, uint16_t x, uint16_t y) {
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uint16_t right_edge = self->x + (self->width_in_tiles * self->tile_width);
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uint16_t bottom_edge = self->y + (self->height_in_tiles * self->tile_height);
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return x >= self->x && x < right_edge &&
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y >= self->y && y < bottom_edge;
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}
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void common_hal_displayio_tilegrid_set_top_left(displayio_tilegrid_t *self, uint16_t x, uint16_t y) {
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self->top_left_x = x;
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self->top_left_y = y;
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self->full_change = true;
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}
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bool displayio_tilegrid_fill_area(displayio_tilegrid_t *self,
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const _displayio_colorspace_t *colorspace, const displayio_area_t *area,
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uint32_t *mask, uint32_t *buffer) {
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// If no tiles are present we have no impact.
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uint8_t *tiles = self->tiles;
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if (self->inline_tiles) {
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tiles = (uint8_t *)&self->tiles;
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}
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if (tiles == NULL) {
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return false;
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}
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bool hidden = self->hidden || self->hidden_by_parent;
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if (hidden) {
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return false;
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}
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displayio_area_t overlap;
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if (!displayio_area_compute_overlap(area, &self->current_area, &overlap)) {
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return false;
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}
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int16_t x_stride = 1;
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int16_t y_stride = displayio_area_width(area);
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bool flip_x = self->flip_x;
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bool flip_y = self->flip_y;
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if (self->transpose_xy != self->absolute_transform->transpose_xy) {
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bool temp_flip = flip_x;
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flip_x = flip_y;
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flip_y = temp_flip;
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}
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// How many pixels are outside of our area between us and the start of the row.
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uint16_t start = 0;
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if ((self->absolute_transform->dx < 0) != flip_x) {
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start += (area->x2 - area->x1 - 1) * x_stride;
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x_stride *= -1;
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}
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if ((self->absolute_transform->dy < 0) != flip_y) {
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start += (area->y2 - area->y1 - 1) * y_stride;
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y_stride *= -1;
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}
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// Track if this layer finishes filling in the given area. We can ignore any remaining
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// layers at that point.
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bool full_coverage = displayio_area_equal(area, &overlap);
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// TODO(tannewt): Skip coverage tracking if all pixels outside the overlap have already been
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// set and our palette is all opaque.
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// TODO(tannewt): Check to see if the pixel_shader has any transparency. If it doesn't then we
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// can either return full coverage or bulk update the mask.
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displayio_area_t transformed;
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displayio_area_transform_within(flip_x != (self->absolute_transform->dx < 0), flip_y != (self->absolute_transform->dy < 0), self->transpose_xy != self->absolute_transform->transpose_xy,
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&overlap,
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&self->current_area,
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&transformed);
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int16_t start_x = (transformed.x1 - self->current_area.x1);
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int16_t end_x = (transformed.x2 - self->current_area.x1);
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int16_t start_y = (transformed.y1 - self->current_area.y1);
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int16_t end_y = (transformed.y2 - self->current_area.y1);
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int16_t y_shift = 0;
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int16_t x_shift = 0;
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if ((self->absolute_transform->dx < 0) != flip_x) {
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x_shift = area->x2 - overlap.x2;
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} else {
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x_shift = overlap.x1 - area->x1;
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}
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if ((self->absolute_transform->dy < 0) != flip_y) {
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y_shift = area->y2 - overlap.y2;
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} else {
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y_shift = overlap.y1 - area->y1;
|
|
}
|
|
|
|
// This untransposes x and y so it aligns with bitmap rows.
|
|
if (self->transpose_xy != self->absolute_transform->transpose_xy) {
|
|
int16_t temp_stride = x_stride;
|
|
x_stride = y_stride;
|
|
y_stride = temp_stride;
|
|
int16_t temp_shift = x_shift;
|
|
x_shift = y_shift;
|
|
y_shift = temp_shift;
|
|
}
|
|
|
|
uint8_t pixels_per_byte = 8 / colorspace->depth;
|
|
|
|
displayio_input_pixel_t input_pixel;
|
|
displayio_output_pixel_t output_pixel;
|
|
|
|
for (input_pixel.y = start_y; input_pixel.y < end_y; ++input_pixel.y) {
|
|
int16_t row_start = start + (input_pixel.y - start_y + y_shift) * y_stride; // in pixels
|
|
int16_t local_y = input_pixel.y / self->absolute_transform->scale;
|
|
for (input_pixel.x = start_x; input_pixel.x < end_x; ++input_pixel.x) {
|
|
// Compute the destination pixel in the buffer and mask based on the transformations.
|
|
int16_t offset = row_start + (input_pixel.x - start_x + x_shift) * x_stride; // in pixels
|
|
|
|
// This is super useful for debugging out of range accesses. Uncomment to use.
|
|
// if (offset < 0 || offset >= (int32_t) displayio_area_size(area)) {
|
|
// asm("bkpt");
|
|
// }
|
|
|
|
// Check the mask first to see if the pixel has already been set.
|
|
if ((mask[offset / 32] & (1 << (offset % 32))) != 0) {
|
|
continue;
|
|
}
|
|
int16_t local_x = input_pixel.x / self->absolute_transform->scale;
|
|
uint16_t tile_location = ((local_y / self->tile_height + self->top_left_y) % self->height_in_tiles) * self->width_in_tiles + (local_x / self->tile_width + self->top_left_x) % self->width_in_tiles;
|
|
input_pixel.tile = tiles[tile_location];
|
|
input_pixel.tile_x = (input_pixel.tile % self->bitmap_width_in_tiles) * self->tile_width + local_x % self->tile_width;
|
|
input_pixel.tile_y = (input_pixel.tile / self->bitmap_width_in_tiles) * self->tile_height + local_y % self->tile_height;
|
|
|
|
output_pixel.pixel = 0;
|
|
input_pixel.pixel = 0;
|
|
|
|
// We always want to read bitmap pixels by row first and then transpose into the destination
|
|
// buffer because most bitmaps are row associated.
|
|
if (mp_obj_is_type(self->bitmap, &displayio_bitmap_type)) {
|
|
input_pixel.pixel = common_hal_displayio_bitmap_get_pixel(self->bitmap, input_pixel.tile_x, input_pixel.tile_y);
|
|
} else if (mp_obj_is_type(self->bitmap, &displayio_ondiskbitmap_type)) {
|
|
input_pixel.pixel = common_hal_displayio_ondiskbitmap_get_pixel(self->bitmap, input_pixel.tile_x, input_pixel.tile_y);
|
|
}
|
|
|
|
output_pixel.opaque = true;
|
|
if (self->pixel_shader == mp_const_none) {
|
|
output_pixel.pixel = input_pixel.pixel;
|
|
} else if (mp_obj_is_type(self->pixel_shader, &displayio_palette_type)) {
|
|
displayio_palette_get_color(self->pixel_shader, colorspace, &input_pixel, &output_pixel);
|
|
} else if (mp_obj_is_type(self->pixel_shader, &displayio_colorconverter_type)) {
|
|
displayio_colorconverter_convert(self->pixel_shader, colorspace, &input_pixel, &output_pixel);
|
|
}
|
|
if (!output_pixel.opaque) {
|
|
// A pixel is transparent so we haven't fully covered the area ourselves.
|
|
full_coverage = false;
|
|
} else {
|
|
mask[offset / 32] |= 1 << (offset % 32);
|
|
if (colorspace->depth == 16) {
|
|
*(((uint16_t *)buffer) + offset) = output_pixel.pixel;
|
|
} else if (colorspace->depth == 32) {
|
|
*(((uint32_t *)buffer) + offset) = output_pixel.pixel;
|
|
} else if (colorspace->depth == 8) {
|
|
*(((uint8_t *)buffer) + offset) = output_pixel.pixel;
|
|
} else if (colorspace->depth < 8) {
|
|
// Reorder the offsets to pack multiple rows into a byte (meaning they share a column).
|
|
if (!colorspace->pixels_in_byte_share_row) {
|
|
uint16_t width = displayio_area_width(area);
|
|
uint16_t row = offset / width;
|
|
uint16_t col = offset % width;
|
|
// Dividing by pixels_per_byte does truncated division even if we multiply it back out.
|
|
offset = col * pixels_per_byte + (row / pixels_per_byte) * pixels_per_byte * width + row % pixels_per_byte;
|
|
// Also useful for validating that the bitpacking worked correctly.
|
|
// if (offset > displayio_area_size(area)) {
|
|
// asm("bkpt");
|
|
// }
|
|
}
|
|
uint8_t shift = (offset % pixels_per_byte) * colorspace->depth;
|
|
if (colorspace->reverse_pixels_in_byte) {
|
|
// Reverse the shift by subtracting it from the leftmost shift.
|
|
shift = (pixels_per_byte - 1) * colorspace->depth - shift;
|
|
}
|
|
((uint8_t *)buffer)[offset / pixels_per_byte] |= output_pixel.pixel << shift;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return full_coverage;
|
|
}
|
|
|
|
void displayio_tilegrid_finish_refresh(displayio_tilegrid_t *self) {
|
|
bool first_draw = self->previous_area.x1 == self->previous_area.x2;
|
|
bool hidden = self->hidden || self->hidden_by_parent;
|
|
if (!first_draw && hidden) {
|
|
self->previous_area.x2 = self->previous_area.x1;
|
|
} else if (self->moved || first_draw) {
|
|
displayio_area_copy(&self->current_area, &self->previous_area);
|
|
}
|
|
|
|
self->moved = false;
|
|
self->full_change = false;
|
|
self->partial_change = false;
|
|
if (mp_obj_is_type(self->pixel_shader, &displayio_palette_type)) {
|
|
displayio_palette_finish_refresh(self->pixel_shader);
|
|
} else if (mp_obj_is_type(self->pixel_shader, &displayio_colorconverter_type)) {
|
|
displayio_colorconverter_finish_refresh(self->pixel_shader);
|
|
}
|
|
if (mp_obj_is_type(self->bitmap, &displayio_bitmap_type)) {
|
|
displayio_bitmap_finish_refresh(self->bitmap);
|
|
} else if (mp_obj_is_type(self->bitmap, &displayio_ondiskbitmap_type)) {
|
|
// OnDiskBitmap changes will trigger a complete reload so no need to
|
|
// track changes.
|
|
}
|
|
// TODO(tannewt): We could double buffer changes to position and move them over here.
|
|
// That way they won't change during a refresh and tear.
|
|
}
|
|
|
|
displayio_area_t *displayio_tilegrid_get_refresh_areas(displayio_tilegrid_t *self, displayio_area_t *tail) {
|
|
bool first_draw = self->previous_area.x1 == self->previous_area.x2;
|
|
bool hidden = self->hidden || self->hidden_by_parent;
|
|
// Check hidden first because it trumps all other changes.
|
|
if (hidden) {
|
|
self->rendered_hidden = true;
|
|
if (!first_draw) {
|
|
self->previous_area.next = tail;
|
|
return &self->previous_area;
|
|
} else {
|
|
return tail;
|
|
}
|
|
} else if (self->moved && !first_draw) {
|
|
displayio_area_union(&self->previous_area, &self->current_area, &self->dirty_area);
|
|
if (displayio_area_size(&self->dirty_area) <= 2U * self->pixel_width * self->pixel_height) {
|
|
self->dirty_area.next = tail;
|
|
return &self->dirty_area;
|
|
}
|
|
self->previous_area.next = tail;
|
|
self->current_area.next = &self->previous_area;
|
|
return &self->current_area;
|
|
}
|
|
|
|
// If we have an in-memory bitmap, then check it for modifications.
|
|
if (mp_obj_is_type(self->bitmap, &displayio_bitmap_type)) {
|
|
displayio_area_t *refresh_area = displayio_bitmap_get_refresh_areas(self->bitmap, tail);
|
|
if (refresh_area != tail) {
|
|
// Special case a TileGrid that shows a full bitmap and use its
|
|
// dirty area. Copy it to ours so we can transform it.
|
|
if (self->tiles_in_bitmap == 1) {
|
|
displayio_area_copy(refresh_area, &self->dirty_area);
|
|
self->partial_change = true;
|
|
} else {
|
|
self->full_change = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
self->full_change = self->full_change ||
|
|
(mp_obj_is_type(self->pixel_shader, &displayio_palette_type) &&
|
|
displayio_palette_needs_refresh(self->pixel_shader)) ||
|
|
(mp_obj_is_type(self->pixel_shader, &displayio_colorconverter_type) &&
|
|
displayio_colorconverter_needs_refresh(self->pixel_shader));
|
|
if (self->full_change || first_draw) {
|
|
self->current_area.next = tail;
|
|
return &self->current_area;
|
|
}
|
|
|
|
if (self->partial_change) {
|
|
int16_t x = self->x;
|
|
int16_t y = self->y;
|
|
if (self->absolute_transform->transpose_xy) {
|
|
int16_t temp = y;
|
|
y = x;
|
|
x = temp;
|
|
}
|
|
int16_t x1 = self->dirty_area.x1;
|
|
int16_t x2 = self->dirty_area.x2;
|
|
if (self->flip_x) {
|
|
x1 = self->pixel_width - x1;
|
|
x2 = self->pixel_width - x2;
|
|
}
|
|
int16_t y1 = self->dirty_area.y1;
|
|
int16_t y2 = self->dirty_area.y2;
|
|
if (self->flip_y) {
|
|
y1 = self->pixel_height - y1;
|
|
y2 = self->pixel_height - y2;
|
|
}
|
|
if (self->transpose_xy != self->absolute_transform->transpose_xy) {
|
|
int16_t temp1 = y1, temp2 = y2;
|
|
y1 = x1;
|
|
x1 = temp1;
|
|
y2 = x2;
|
|
x2 = temp2;
|
|
}
|
|
self->dirty_area.x1 = self->absolute_transform->x + self->absolute_transform->dx * (x + x1);
|
|
self->dirty_area.y1 = self->absolute_transform->y + self->absolute_transform->dy * (y + y1);
|
|
self->dirty_area.x2 = self->absolute_transform->x + self->absolute_transform->dx * (x + x2);
|
|
self->dirty_area.y2 = self->absolute_transform->y + self->absolute_transform->dy * (y + y2);
|
|
if (self->dirty_area.y2 < self->dirty_area.y1) {
|
|
int16_t temp = self->dirty_area.y2;
|
|
self->dirty_area.y2 = self->dirty_area.y1;
|
|
self->dirty_area.y1 = temp;
|
|
}
|
|
if (self->dirty_area.x2 < self->dirty_area.x1) {
|
|
int16_t temp = self->dirty_area.x2;
|
|
self->dirty_area.x2 = self->dirty_area.x1;
|
|
self->dirty_area.x1 = temp;
|
|
}
|
|
|
|
self->dirty_area.next = tail;
|
|
return &self->dirty_area;
|
|
}
|
|
return tail;
|
|
}
|