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/*************************************************************************** |
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* Copyright (c) 2024 Microsoft Corporation |
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* Copyright (c) 2026-present Eclipse ThreadX contributors |
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* |
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* This program and the accompanying materials are made available under the |
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* terms of the MIT License which is available at |
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* https://opensource.org/licenses/MIT. |
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* |
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* SPDX-License-Identifier: MIT |
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**************************************************************************/ |
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/**************************************************************************/ |
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/**************************************************************************/ |
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/** */ |
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/** GUIX Component */ |
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/** */ |
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/** Display Management (Display) */ |
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/** */ |
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/**************************************************************************/ |
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#define GX_SOURCE_CODE |
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/* Include necessary system files. */ |
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#include "gx_api.h" |
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#include "gx_system.h" |
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#include "gx_utility.h" |
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#include "gx_display.h" |
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/**************************************************************************/ |
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/* */ |
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/* FUNCTION RELEASE */ |
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/* */ |
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/* _gx_display_driver_generic_pie_fill PORTABLE C */ |
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/* 6.1 */ |
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/* AUTHOR */ |
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/* */ |
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/* Kenneth Maxwell, Microsoft Corporation */ |
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/* */ |
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/* DESCRIPTION */ |
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/* */ |
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/* Display driver to fill a pie. */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* context Drawing context */ |
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/* xcenter x-coord of center of circle */ |
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/* ycenter y-coord of center of circle */ |
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/* r Radius of circle */ |
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/* start_angle The start angle of circle arc */ |
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/* end_angle The end angle of circle arc */ |
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/* */ |
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/* OUTPUT */ |
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/* */ |
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/* None */ |
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/* */ |
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/* CALLS */ |
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/* */ |
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/* _gx_display_driver_generic_simple_pie_fill */ |
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/* Real display driver draw */ |
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/* filled-pie function */ |
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/* */ |
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/* CALLED BY */ |
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/* */ |
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/* _gx_canvas_pie_draw */ |
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/* */ |
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/**************************************************************************/ |
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#if defined(GX_ARC_DRAWING_SUPPORT) |
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VOID _gx_display_driver_generic_pie_fill(GX_DRAW_CONTEXT *context, INT xcenter, INT ycenter, UINT r, INT start_angle, INT end_angle) |
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{ |
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/* The function fills a pie.*/ |
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✓✓ |
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if (start_angle < 180) |
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{ |
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✓✓ |
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if (end_angle < 180) |
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{ |
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_gx_display_driver_generic_simple_pie_fill(context, xcenter, ycenter, r, start_angle, end_angle, GX_FALSE); |
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} |
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✓✓ |
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else if (end_angle < 360) |
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{ |
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/* Skip-end parameter should only be set when drawing the above area. |
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It would be set to GX_TRUE to skip the bottom line to avoid case that this line will be drawn twice, which |
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is not correct, when brush alpha is set. */ |
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_gx_display_driver_generic_simple_pie_fill(context, xcenter, ycenter, r, start_angle, 180, GX_TRUE); |
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_gx_display_driver_generic_simple_pie_fill(context, xcenter, ycenter, r, 180, end_angle, GX_FALSE); |
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} |
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else |
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{ |
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_gx_display_driver_generic_simple_pie_fill(context, xcenter, ycenter, r, start_angle, 180, GX_TRUE); |
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_gx_display_driver_generic_simple_pie_fill(context, xcenter, ycenter, r, 180, 360, GX_FALSE); |
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_gx_display_driver_generic_simple_pie_fill(context, xcenter, ycenter, r, 0, end_angle - 360, GX_TRUE); |
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} |
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} |
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else |
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{ |
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✓✓ |
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if (end_angle < 360) |
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{ |
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_gx_display_driver_generic_simple_pie_fill(context, xcenter, ycenter, r, start_angle, end_angle, GX_FALSE); |
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} |
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✓✓ |
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else if (end_angle < 540) |
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{ |
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_gx_display_driver_generic_simple_pie_fill(context, xcenter, ycenter, r, start_angle, 360, GX_FALSE); |
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_gx_display_driver_generic_simple_pie_fill(context, xcenter, ycenter, r, 0, end_angle - 360, GX_TRUE); |
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} |
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else |
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{ |
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_gx_display_driver_generic_simple_pie_fill(context, xcenter, ycenter, r, start_angle, 360, GX_FALSE); |
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_gx_display_driver_generic_simple_pie_fill(context, xcenter, ycenter, r, 0, 180, GX_TRUE); |
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_gx_display_driver_generic_simple_pie_fill(context, xcenter, ycenter, r, 180, end_angle - 360, GX_FALSE); |
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} |
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} |
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} |
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#endif |
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