eb21fc3e31
Different operations to the display tree have different costs. Be aware of these costs when optimizing your code. * Changing tiles indices in a TileGrid will update an area covering them all. * Changing a palette will refresh every object that references it. * Moving a TileGrid will update both where it was and where it moved to. * Adding something to a Group will refresh each individual area it covers. * Removing things from a Group will refresh one area that covers all previous locations. (Not separate areas like add.) * Setting a new top level Group will refresh the entire display. Only TileGrid moves are optimized for overlap. All other overlaps cause sending of duplicate pixels. This also adds flip_x, flip_y and transpose_xy to TileGrid. They change the direction of the pixels but not the location. Fixes #1169. Fixes #1705. Fixes #1923.
83 lines
3.2 KiB
C
83 lines
3.2 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/Palette.h"
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void common_hal_displayio_palette_construct(displayio_palette_t* self, uint16_t color_count) {
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self->color_count = color_count;
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self->colors = (uint32_t *) m_malloc(color_count * sizeof(uint16_t), false);
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uint32_t opaque_byte_count = color_count / 8;
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if (color_count % 8 > 0) {
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opaque_byte_count += 1;
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}
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self->opaque = (uint32_t *) m_malloc(opaque_byte_count, false);
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}
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void common_hal_displayio_palette_make_opaque(displayio_palette_t* self, uint32_t palette_index) {
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self->opaque[palette_index / 32] &= ~(0x1 << (palette_index % 32));
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}
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void common_hal_displayio_palette_make_transparent(displayio_palette_t* self, uint32_t palette_index) {
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self->opaque[palette_index / 32] |= (0x1 << (palette_index % 32));
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}
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void common_hal_displayio_palette_set_color(displayio_palette_t* self, uint32_t palette_index, uint32_t color) {
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uint32_t shift = (palette_index % 2) * 16;
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uint32_t masked = self->colors[palette_index / 2] & ~(0xffff << shift);
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uint32_t r5 = (color >> 19);
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uint32_t g6 = (color >> 10) & 0x3f;
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uint32_t b5 = (color >> 3) & 0x1f;
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uint32_t packed = r5 << 11 | g6 << 5 | b5;
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// swap bytes
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packed = __builtin_bswap16(packed);
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uint32_t final_color = masked | packed << shift;
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if (self->colors[palette_index / 2] == final_color) {
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return;
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}
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self->colors[palette_index / 2] = final_color;
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self->needs_refresh = true;
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}
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bool displayio_palette_get_color(displayio_palette_t *self, uint32_t palette_index, uint16_t* color) {
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if (palette_index > self->color_count) {
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return false;
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}
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if ((self->opaque[palette_index / 32] & (0x1 << (palette_index % 32))) != 0) {
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return false;
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}
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*color = (self->colors[palette_index / 2] >> (16 * (palette_index % 2))) & 0xffff;
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return true;
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}
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bool displayio_palette_needs_refresh(displayio_palette_t *self) {
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return self->needs_refresh;
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}
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void displayio_palette_finish_refresh(displayio_palette_t *self) {
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self->needs_refresh = false;
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}
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