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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_simple_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 chart. */ |
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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 Starting angle */ |
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/* end_angle Ending angle */ |
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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_arc_clipping_get Get an arc clipping. */ |
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/* _gx_utility_rectangle_overlap_detect Detects two rectangles being */ |
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/* overlap */ |
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/* _gx_utility_rectangle_point_detect Detect whether a pixel is */ |
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/* inside rectangle */ |
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/* _gx_utility_circle_point_get Get point coord on a circle */ |
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/* [gx_display_driver_horizontal_pixelmap_line_draw] */ |
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/* Basic display driver */ |
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/* horizontal pixelmap line */ |
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/* draw function */ |
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/* [gx_display_driver_horizontal_line_draw] */ |
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/* Basic display driver */ |
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/* horizontal line draw routine*/ |
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/* */ |
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/* CALLED BY */ |
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/* */ |
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/* GUIX Internal Code */ |
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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_simple_pie_fill(GX_DRAW_CONTEXT *context, INT xcenter, INT ycenter, |
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UINT r, INT start_angle, INT end_angle, GX_BOOL skip_end) |
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{ |
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/* The function will only fill a pie with both start angle and end angle are |
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between 0 and 180 or beween 180 and 360.*/ |
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GX_DISPLAY *display; |
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GX_BRUSH *brush; |
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GX_RECTANGLE *clip; |
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GX_RECTANGLE arc_clip[4]; |
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GX_POINT point; |
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GX_POINT points[3]; |
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INT sign[4][2] = {{1, 1}, {-1, 1}, {1, -1}, {-1, -1}}; |
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INT *pLineEnds; |
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GX_POINT *pGet; |
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INT ymin; |
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INT ymax; |
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INT xstart; |
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INT xend; |
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INT ystart; |
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INT yend; |
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INT curx; |
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INT cury; |
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INT nextx; |
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INT nexty; |
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INT dx; |
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INT dy; |
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INT Index; |
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INT loop; |
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INT height; |
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INT xsign; |
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INT ysign; |
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INT decision; |
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int fillingwards; |
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VOID (*line_draw)(GX_DRAW_CONTEXT *context, INT x1, INT x2, INT ypos, INT width, GX_COLOR color); |
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INT xpos = 0; |
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GX_PIXELMAP *pixelmap = GX_NULL; |
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GX_VALUE format; |
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INT skip_line; |
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GX_FILL_PIXELMAP_INFO info; |
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display = context -> gx_draw_context_display; |
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brush = &context -> gx_draw_context_brush; |
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line_draw = display -> gx_display_driver_horizontal_line_draw; |
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✓✓ |
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if (brush -> gx_brush_style & GX_BRUSH_PIXELMAP_FILL) |
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{ |
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/* Pick up pixelmap. */ |
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pixelmap = brush -> gx_brush_pixelmap; |
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✓✓ |
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if (pixelmap == GX_NULL) |
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{ |
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return; |
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} |
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✓✓ |
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if (pixelmap -> gx_pixelmap_height <= 0 || |
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✓✓ |
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pixelmap -> gx_pixelmap_width <= 0) |
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{ |
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return; |
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} |
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memset(&info, 0, sizeof(GX_FILL_PIXELMAP_INFO)); |
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format = display -> gx_display_color_format; |
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/*Check the pixelmap format is supported in this driver or not.*/ |
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✓✓ |
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if (format >= GX_COLOR_FORMAT_24XRGB) |
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{ |
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/*32ARGB FORMAT use 24xrgb driver for now. So this is a special case.*/ |
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✓✓ |
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if (pixelmap -> gx_pixelmap_format < GX_COLOR_FORMAT_24XRGB) |
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{ |
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/* Display driver only support its native format pixelmap. */ |
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/* Nothing should be drawn if pixelmap format isn't support. */ |
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return; |
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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 (pixelmap -> gx_pixelmap_format != format) |
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{ |
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/* Display driver only support its native format pixelmap. */ |
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/* Nothing should be drawn if pixelmap format isn't support. */ |
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return; |
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} |
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✓✓ |
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else if (pixelmap -> gx_pixelmap_format == GX_COLOR_FORMAT_4BIT_GRAY) |
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{ |
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info.mask = 0xf0; |
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} |
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} |
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info.pixelmap = pixelmap; |
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info.current_pixel_ptr = (GX_UBYTE *)pixelmap -> gx_pixelmap_data; |
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✓✓ |
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if (pixelmap -> gx_pixelmap_aux_data_size) |
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{ |
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info.current_aux_ptr = (GX_UBYTE *)pixelmap -> gx_pixelmap_aux_data; |
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} |
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} |
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pGet = points; |
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_gx_display_driver_arc_clipping_get(xcenter, ycenter, r, start_angle, end_angle, |
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&arc_clip[0], &arc_clip[1], &arc_clip[2], &arc_clip[3]); |
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✓✓✓✓
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if ((start_angle <= 180) && (end_angle <= 180)) |
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{ |
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/* Pie is in upper side. */ |
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ymin = ycenter - (INT)r; |
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ymax = ycenter; |
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✓✓ |
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if (skip_end) |
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{ |
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ymax--; |
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} |
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} |
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else |
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{ |
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/* Pie is in lower side. */ |
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ymin = ycenter; |
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ymax = ycenter + (INT)r; |
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} |
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clip = context -> gx_draw_context_clip; |
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✓✓ |
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if (clip -> gx_rectangle_top > ymin) |
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{ |
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ymin = clip -> gx_rectangle_top; |
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} |
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skip_line = ymin - (ycenter - (INT)r); |
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✓✓ |
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if (clip -> gx_rectangle_bottom < ymax) |
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{ |
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ymax = clip -> gx_rectangle_bottom; |
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} |
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height = ymax - ymin + 1; |
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pLineEnds = _gx_system_scratchpad; |
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/* default the point array to being off the screen on both sides: */ |
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✓✓ |
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for (loop = 0; loop < height * 2; loop += 2) |
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{ |
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pLineEnds[loop] = 2000; |
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pLineEnds[loop + 1] = 0; |
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} |
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curx = 0; |
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cury = (INT)r; |
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decision = 5 - (INT)(4 * r); |
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✓✓ |
201034 |
while (curx <= cury) |
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{ |
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✓✓ |
991915 |
for (loop = 0; loop < 4; loop++) |
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{ |
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point.gx_point_x = (GX_VALUE)(curx * sign[loop][0] + xcenter); |
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point.gx_point_y = (GX_VALUE)(cury * sign[loop][1] + ycenter); |
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✓✓✓✓
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if ((point.gx_point_y >= ymin) && (point.gx_point_y <= ymax)) |
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{ |
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✓✓✓✓
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549742 |
if (_gx_utility_rectangle_point_detect(&arc_clip[0], point) || |
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_gx_utility_rectangle_point_detect(&arc_clip[1], point)) |
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{ |
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Index = (point.gx_point_y - ymin) << 1; |
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✓✓ |
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if (point.gx_point_x < pLineEnds[Index]) |
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{ |
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pLineEnds[Index] = point.gx_point_x; |
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} |
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✓✓ |
96345 |
if (point.gx_point_x > pLineEnds[Index + 1]) |
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{ |
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pLineEnds[Index + 1] = point.gx_point_x; |
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} |
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} |
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} |
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793532 |
point.gx_point_x = (GX_VALUE)(cury * sign[loop][0] + xcenter); |
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793532 |
point.gx_point_y = (GX_VALUE)(curx * sign[loop][1] + ycenter); |
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✓✓✓✓
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793532 |
if ((point.gx_point_y >= ymin) && (point.gx_point_y <= ymax)) |
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{ |
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✓✓✓✓
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651926 |
if (_gx_utility_rectangle_point_detect(&arc_clip[0], point) || |
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268966 |
_gx_utility_rectangle_point_detect(&arc_clip[1], point)) |
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{ |
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129992 |
Index = (point.gx_point_y - ymin) << 1; |
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✓✓ |
129992 |
if (point.gx_point_x < pLineEnds[Index]) |
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{ |
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128147 |
pLineEnds[Index] = point.gx_point_x; |
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} |
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✓✓ |
129992 |
if (point.gx_point_x > pLineEnds[Index + 1]) |
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{ |
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93497 |
pLineEnds[Index + 1] = point.gx_point_x; |
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} |
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} |
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} |
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} |
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✓✓ |
198383 |
if (decision < 0) |
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{ |
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114732 |
decision += 8 * curx + 12; |
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} |
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else |
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{ |
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83651 |
decision += 8 * (curx - cury) + 20; |
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83651 |
cury--; |
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} |
284 |
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198383 |
curx++; |
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} |
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/* Fill in the point array by using Breshenhams line for |
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2 lines of circle sector |
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*/ |
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2651 |
points[1].gx_point_x = (GX_VALUE)xcenter; |
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2651 |
points[1].gx_point_y = (GX_VALUE)ycenter; |
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2651 |
_gx_utility_circle_point_get(xcenter, ycenter, r, start_angle, &points[0]); |
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_gx_utility_circle_point_get(xcenter, ycenter, r, end_angle, &points[2]); |
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✓✓ |
7953 |
for (loop = 0; loop < 2; loop++) |
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{ |
299 |
|
5302 |
xstart = pGet -> gx_point_x; |
300 |
|
5302 |
ystart = pGet -> gx_point_y; |
301 |
|
5302 |
pGet++; |
302 |
|
5302 |
xend = pGet -> gx_point_x; |
303 |
|
5302 |
yend = pGet -> gx_point_y; |
304 |
|
5302 |
dx = GX_ABS(xend - xstart); |
305 |
|
5302 |
dy = GX_ABS(yend - ystart); |
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/* Horizontal Line. */ |
308 |
✓✓ |
5302 |
if (ystart == yend) |
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{ |
310 |
|
2133 |
continue; |
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} |
312 |
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/* Vertical Line. */ |
314 |
✓✓ |
3169 |
if (xstart == xend) |
315 |
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{ |
316 |
✓✓ |
529 |
if (ystart > yend) |
317 |
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{ |
318 |
|
271 |
GX_SWAP_VALS(xstart, xend); |
319 |
|
271 |
GX_SWAP_VALS(ystart, yend); |
320 |
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} |
321 |
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|
322 |
✓✓ |
4783 |
for (cury = ystart; cury <= yend; cury++) |
323 |
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{ |
324 |
✓✓✓✓
|
4254 |
if ((cury >= ymin) && (cury <= ymax)) |
325 |
|
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{ |
326 |
|
1516 |
Index = (cury - ymin) << 1; |
327 |
✓✓ |
1516 |
if (xstart <= pLineEnds[Index]) |
328 |
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{ |
329 |
|
1420 |
pLineEnds[Index] = xstart; |
330 |
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} |
331 |
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|
332 |
✓✓ |
1516 |
if (xstart > pLineEnds[Index + 1]) |
333 |
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{ |
334 |
|
641 |
pLineEnds[Index + 1] = xstart; |
335 |
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} |
336 |
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} |
337 |
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} |
338 |
|
529 |
continue; |
339 |
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} |
340 |
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|
341 |
|
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/* Simple Line. */ |
342 |
✓✓✓✓
✓✓ |
2640 |
if (((dx >= dy && (xstart > xend)) || |
343 |
✓✓ |
1145 |
((dy > dx) && ystart > yend))) |
344 |
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{ |
345 |
|
1348 |
GX_SWAP_VALS(xend, xstart); |
346 |
|
1348 |
GX_SWAP_VALS(yend, ystart); |
347 |
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} |
348 |
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|
349 |
|
2640 |
xsign = (xend - xstart) / dx; |
350 |
|
2640 |
ysign = (yend - ystart) / dy; |
351 |
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|
352 |
✓✓ |
2640 |
if (start_angle < 180) |
353 |
|
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{ |
354 |
✓✓ |
1470 |
if (loop == 0) |
355 |
|
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{ |
356 |
|
754 |
fillingwards = (1 + ysign) >> 1; |
357 |
|
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} |
358 |
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else |
359 |
|
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{ |
360 |
|
716 |
fillingwards = (1 - ysign) >> 1; |
361 |
|
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} |
362 |
|
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} |
363 |
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else |
364 |
|
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{ |
365 |
✓✓ |
1170 |
if (loop == 0) |
366 |
|
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{ |
367 |
|
560 |
fillingwards = (1 - ysign) >> 1; |
368 |
|
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} |
369 |
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else |
370 |
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{ |
371 |
|
610 |
fillingwards = (1 + ysign) >> 1; |
372 |
|
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} |
373 |
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} |
374 |
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|
375 |
✓✓ |
2640 |
if (dx >= dy) |
376 |
|
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{ |
377 |
|
1495 |
for (curx = xstart, cury = ystart, nextx = xend, nexty = yend, |
378 |
✓✓ |
100015 |
decision = (dx >> 1); curx <= nextx; curx++, nextx--, |
379 |
|
98520 |
decision += dy) |
380 |
|
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{ |
381 |
✓✓ |
98520 |
if (decision >= dx) |
382 |
|
|
{ |
383 |
|
43244 |
decision -= dx; |
384 |
|
43244 |
cury += ysign; |
385 |
|
43244 |
nexty -= ysign; |
386 |
|
|
} |
387 |
|
|
|
388 |
✓✓✓✓
|
98520 |
if ((cury - 1 + fillingwards >= ymin) && (cury - 1 + fillingwards <= ymax)) |
389 |
|
|
{ |
390 |
|
95880 |
Index = (cury - 1 + fillingwards - ymin) << 1; |
391 |
|
|
|
392 |
✓✓ |
95880 |
if (curx < pLineEnds[Index]) |
393 |
|
|
{ |
394 |
|
21007 |
pLineEnds[Index] = curx; |
395 |
|
|
} |
396 |
|
|
|
397 |
✓✓ |
95880 |
if (curx > pLineEnds[Index + 1]) |
398 |
|
|
{ |
399 |
|
58329 |
pLineEnds[Index + 1] = curx; |
400 |
|
|
} |
401 |
|
|
} |
402 |
|
|
|
403 |
✓✓✓✓
|
98520 |
if ((nexty - 1 + fillingwards >= ymin) && (nexty - 1 + fillingwards <= ymax)) |
404 |
|
|
{ |
405 |
|
97132 |
Index = (nexty - 1 + fillingwards - ymin) << 1; |
406 |
|
|
|
407 |
✓✓ |
97132 |
if (nextx < pLineEnds[Index]) |
408 |
|
|
{ |
409 |
|
56335 |
pLineEnds[Index] = nextx; |
410 |
|
|
} |
411 |
|
|
|
412 |
✓✓ |
97132 |
if (nextx > pLineEnds[Index + 1]) |
413 |
|
|
{ |
414 |
|
28682 |
pLineEnds[Index + 1] = nextx; |
415 |
|
|
} |
416 |
|
|
} |
417 |
|
|
} |
418 |
|
|
} |
419 |
|
|
else |
420 |
|
|
{ |
421 |
|
1145 |
for (curx = xstart, cury = ystart, nextx = xend, nexty = yend, |
422 |
✓✓ |
72300 |
decision = (dy >> 1); cury <= nexty; cury++, nexty--, |
423 |
|
71155 |
decision += dx) |
424 |
|
|
{ |
425 |
✓✓ |
71155 |
if (decision >= dy) |
426 |
|
|
{ |
427 |
|
21732 |
decision -= dy; |
428 |
|
21732 |
curx += xsign; |
429 |
|
21732 |
nextx -= xsign; |
430 |
|
|
} |
431 |
|
|
|
432 |
✓✓✓✓
|
71155 |
if ((cury >= ymin) && (cury <= ymax)) |
433 |
|
|
{ |
434 |
|
69569 |
Index = (cury - ymin) << 1; |
435 |
|
|
|
436 |
✓✓ |
69569 |
if (curx < pLineEnds[Index]) |
437 |
|
|
{ |
438 |
|
41219 |
pLineEnds[Index] = curx; |
439 |
|
|
} |
440 |
|
|
|
441 |
✓✓ |
69569 |
if (curx - 1 > pLineEnds[Index + 1]) |
442 |
|
|
{ |
443 |
|
39527 |
pLineEnds[Index + 1] = curx - 1; |
444 |
|
|
} |
445 |
|
|
} |
446 |
|
|
|
447 |
✓✓✓✓
|
71155 |
if ((nexty >= ymin) && (nexty <= ymax)) |
448 |
|
|
{ |
449 |
|
66854 |
Index = (nexty - ymin) << 1; |
450 |
|
|
|
451 |
✓✓ |
66854 |
if (nextx < pLineEnds[Index]) |
452 |
|
|
{ |
453 |
|
46545 |
pLineEnds[Index] = nextx; |
454 |
|
|
} |
455 |
|
|
|
456 |
✓✓ |
66854 |
if (nextx - 1 > pLineEnds[Index + 1]) |
457 |
|
|
{ |
458 |
|
35442 |
pLineEnds[Index + 1] = nextx - 1; |
459 |
|
|
} |
460 |
|
|
} |
461 |
|
|
} |
462 |
|
|
} |
463 |
|
|
} |
464 |
|
|
|
465 |
✓✓ |
2651 |
if (pixelmap != NULL) |
466 |
|
|
{ |
467 |
|
|
/* Calculate the draw_start position and skip line to fill the pie area. */ |
468 |
|
1248 |
xpos = xcenter - (INT)r; |
469 |
|
|
|
470 |
|
|
/*Skip the un-draw line.*/ |
471 |
✓✓ |
1248 |
if (skip_line > 0) |
472 |
|
|
{ |
473 |
|
622 |
skip_line %= info.pixelmap -> gx_pixelmap_height; |
474 |
|
622 |
info.draw = GX_FALSE; |
475 |
✓✓ |
22398 |
while (skip_line--) |
476 |
|
|
{ |
477 |
|
21776 |
display -> gx_display_driver_horizontal_pixelmap_line_draw(context, 0, 0, cury, &info); |
478 |
|
|
} |
479 |
|
|
} |
480 |
|
|
} |
481 |
|
|
|
482 |
|
|
/* Filling circle sector with horizontal line. */ |
483 |
|
2651 |
Index = 0; |
484 |
✓✓ |
256356 |
for (cury = ymin; cury <= ymax; cury++) |
485 |
|
|
{ |
486 |
✓✓ |
253705 |
if (pLineEnds[Index] <= pLineEnds[Index + 1]) |
487 |
|
|
{ |
488 |
✓✓ |
194500 |
if (pLineEnds[Index] < clip -> gx_rectangle_left) |
489 |
|
|
{ |
490 |
|
30292 |
pLineEnds[Index] = clip -> gx_rectangle_left; |
491 |
|
|
} |
492 |
|
|
|
493 |
✓✓ |
194500 |
if (pLineEnds[Index + 1] > clip -> gx_rectangle_right) |
494 |
|
|
{ |
495 |
|
12441 |
pLineEnds[Index + 1] = clip -> gx_rectangle_right; |
496 |
|
|
} |
497 |
|
|
|
498 |
✓✓ |
194500 |
if (pixelmap) |
499 |
|
|
{ |
500 |
|
107459 |
info.draw = GX_TRUE; |
501 |
|
107459 |
info.x_offset = pLineEnds[Index] - xpos; |
502 |
|
|
/* Filling pie area with pixelmap. */ |
503 |
|
107459 |
display -> gx_display_driver_horizontal_pixelmap_line_draw(context, pLineEnds[Index], pLineEnds[Index + 1], cury, &info); |
504 |
|
|
} |
505 |
|
|
else |
506 |
|
|
{ |
507 |
|
87041 |
line_draw(context, pLineEnds[Index], pLineEnds[Index + 1], cury, 1, |
508 |
|
|
brush -> gx_brush_fill_color); |
509 |
|
|
} |
510 |
|
|
} |
511 |
|
|
else |
512 |
|
|
{ |
513 |
✓✓ |
59205 |
if (pixelmap != GX_NULL) |
514 |
|
|
{ |
515 |
|
29318 |
info.draw = GX_FALSE; |
516 |
|
29318 |
display -> gx_display_driver_horizontal_pixelmap_line_draw(context, 0, 0, cury, &info); |
517 |
|
|
} |
518 |
|
|
} |
519 |
|
|
|
520 |
|
253705 |
Index += 2; |
521 |
|
|
} |
522 |
|
|
} |
523 |
|
|
|
524 |
|
|
#endif |
525 |
|
|
|