Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	gx_canvas_circle_draw.c	Lines:	33	33	100.0 %
Date:	2024-12-05 08:52:37	Branches:	22	22	100.0 %


/***************************************************************************
 * Copyright (c) 2024 Microsoft Corporation
 *
 * This program and the accompanying materials are made available under the
 * terms of the MIT License which is available at
 * https://opensource.org/licenses/MIT.
 *
 * SPDX-License-Identifier: MIT
 **************************************************************************/


/**************************************************************************/
/**************************************************************************/
/**                                                                       */
/** GUIX Component                                                        */
/**                                                                       */
/**   Display Management (Display)                                        */
/**                                                                       */
/**************************************************************************/

#define GX_SOURCE_CODE


/* Include necessary system files.  */

#include "gx_api.h"
#include "gx_system.h"
#include "gx_utility.h"
#include "gx_display.h"
#include "gx_canvas.h"

/**************************************************************************/
/*                                                                        */
/*  FUNCTION                                               RELEASE        */
/*                                                                        */
/*    _gx_canvas_circle_draw                              PORTABLE C      */
/*                                                           6.1          */
/*  AUTHOR                                                                */
/*                                                                        */
/*    Kenneth Maxwell, Microsoft Corporation                              */
/*                                                                        */
/*  DESCRIPTION                                                           */
/*                                                                        */
/*    This draws a circle into the currrent context.                      */
/*                                                                        */
/*  INPUT                                                                 */
/*                                                                        */
/*    xcenter                               x-coord of center of circle   */
/*    ycenter                               y-coord of center of circle   */
/*    r                                     Radius of circle              */
/*                                                                        */
/*  OUTPUT                                                                */
/*                                                                        */
/*    None                                                                */
/*                                                                        */
/*  CALLS                                                                 */
/*                                                                        */
/*    _gx_utility_rectangle_define          Define a rectangle            */
/*    _gx_utility_rectangle_overlap_detect  Detects two rectangles being  */
/*                                            overlap                     */
/*    [gx_display_driver_arc_draw]          Display driver basic          */
/*                                            arc drawing routine         */
/*                                                                        */
/*  CALLED BY                                                             */
/*                                                                        */
/*    Application code                                                    */
/*                                                                        */
/*  RELEASE HISTORY                                                       */
/*                                                                        */
/*    DATE              NAME                      DESCRIPTION             */
/*                                                                        */
/*  05-19-2020     Kenneth Maxwell          Initial Version 6.0           */
/*  09-30-2020     Kenneth Maxwell          Modified comment(s),          */
/*                                            resulting in version 6.1    */
/*                                                                        */
/**************************************************************************/
#if defined(GX_ARC_DRAWING_SUPPORT)
UINT _gx_canvas_circle_draw(INT xcenter, INT ycenter, UINT r)
{
GX_DRAW_CONTEXT *context;
GX_DISPLAY      *display;
GX_RECTANGLE     bound;
GX_RECTANGLE     clip_rect;
GX_VIEW         *view;
GX_BRUSH        *brush;
INT              brush_width;
VOID             (*outline_function)(GX_DRAW_CONTEXT *context, INT xcenter, INT ycenter, UINT r);

    /* pick up the current drawing context */
    context = _gx_system_current_draw_context;

    brush = &context -> gx_draw_context_brush;

    brush_width = (brush -> gx_brush_width + 1) >> 1;

    _gx_utility_rectangle_define(&bound, (GX_VALUE)(xcenter - (INT)r - brush_width), (GX_VALUE)(ycenter - (INT)r - brush_width),
                                 (GX_VALUE)(xcenter + (INT)r + brush_width), (GX_VALUE)(ycenter + (INT)r + brush_width));

    brush_width = brush -> gx_brush_width;

    /* clip the circle bounding box to the dirty rectangle */
    if (!_gx_utility_rectangle_overlap_detect(&bound, &context -> gx_draw_context_dirty, &bound))
    {
        /* nothing to draw, return */
        return GX_SUCCESS;
    }

    /* pick up current display driver */
    display = context -> gx_draw_context_display;

    /* configure outline function to utilize */
    outline_function = GX_NULL;

    /*Set normal outline draw function.*/
    if (brush_width == 1)
    {
        /* if anti-alias is requested and this is supported by display, use it */
        if ((brush -> gx_brush_style & GX_BRUSH_ALIAS) &&
            display -> gx_display_driver_anti_aliased_circle_draw != GX_NULL)
        {
            outline_function = display -> gx_display_driver_anti_aliased_circle_draw;
        }
        else
        {
            /* otherwise use non-aliased outline */
            outline_function = display -> gx_display_driver_circle_draw;
        }
    }
    else
    {
        if (brush_width > 1)
        {
            /* if anti-alias is requested and this is supported by display, use it */
            if ((brush -> gx_brush_style & GX_BRUSH_ALIAS) &&
                display -> gx_display_driver_anti_aliased_wide_circle_draw != GX_NULL )
            {
                outline_function = display -> gx_display_driver_anti_aliased_wide_circle_draw;
            }
            else
            {
                /* otherwise use non-aliased outline */
                outline_function = display -> gx_display_driver_wide_circle_draw;
            }
        }
    }

    /* test to determine if the bounding rectangle overlaps the region we are allowed to draw
       into. For each view that overlaps the bounding rectangle, do some drawing.
     */
    view = context -> gx_draw_context_view_head;

    while (view)
    {
        if (!_gx_utility_rectangle_overlap_detect(&view -> gx_view_rectangle, &bound, &clip_rect))
        {
            view = view -> gx_view_next;
            continue;
        }

        /* we have a view into which we can draw the line, do it */
        context -> gx_draw_context_clip = &clip_rect;

        if (brush -> gx_brush_style & (GX_BRUSH_SOLID_FILL | GX_BRUSH_PIXELMAP_FILL))
        {
            display -> gx_display_driver_circle_fill(context, xcenter, ycenter, r);
        }

        if (outline_function)
        {
            outline_function(context, xcenter, ycenter, r);
        }

        view = view -> gx_view_next;
    }

    /* Return successful completion.  */
    return(GX_SUCCESS);
}
#endif



Generated by: GCOVR (Version 4.1)

Line	Branch	Exec	Source
1			/***************************************************************************
2			* Copyright (c) 2024 Microsoft Corporation
3			*
4			* This program and the accompanying materials are made available under the
5			* terms of the MIT License which is available at
6			* https://opensource.org/licenses/MIT.
7			*
8			* SPDX-License-Identifier: MIT
9			**************************************************************************/
10
11
12			/**************************************************************************/
13			/**************************************************************************/
14			/** */
15			/** GUIX Component */
16			/** */
17			/** Display Management (Display) */
18			/** */
19			/**************************************************************************/
20
21			#define GX_SOURCE_CODE
22
23
24			/* Include necessary system files. */
25
26			#include "gx_api.h"
27			#include "gx_system.h"
28			#include "gx_utility.h"
29			#include "gx_display.h"
30			#include "gx_canvas.h"
31
32			/**************************************************************************/
33			/* */
34			/* FUNCTION RELEASE */
35			/* */
36			/* _gx_canvas_circle_draw PORTABLE C */
37			/* 6.1 */
38			/* AUTHOR */
39			/* */
40			/* Kenneth Maxwell, Microsoft Corporation */
41			/* */
42			/* DESCRIPTION */
43			/* */
44			/* This draws a circle into the currrent context. */
45			/* */
46			/* INPUT */
47			/* */
48			/* xcenter x-coord of center of circle */
49			/* ycenter y-coord of center of circle */
50			/* r Radius of circle */
51			/* */
52			/* OUTPUT */
53			/* */
54			/* None */
55			/* */
56			/* CALLS */
57			/* */
58			/* _gx_utility_rectangle_define Define a rectangle */
59			/* _gx_utility_rectangle_overlap_detect Detects two rectangles being */
60			/* overlap */
61			/* [gx_display_driver_arc_draw] Display driver basic */
62			/* arc drawing routine */
63			/* */
64			/* CALLED BY */
65			/* */
66			/* Application code */
67			/* */
68			/* RELEASE HISTORY */
69			/* */
70			/* DATE NAME DESCRIPTION */
71			/* */
72			/* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */
73			/* 09-30-2020 Kenneth Maxwell Modified comment(s), */
74			/* resulting in version 6.1 */
75			/* */
76			/**************************************************************************/
77			#if defined(GX_ARC_DRAWING_SUPPORT)
78		7216	UINT _gx_canvas_circle_draw(INT xcenter, INT ycenter, UINT r)
79			{
80			GX_DRAW_CONTEXT *context;
81			GX_DISPLAY *display;
82			GX_RECTANGLE bound;
83			GX_RECTANGLE clip_rect;
84			GX_VIEW *view;
85			GX_BRUSH *brush;
86			INT brush_width;
87			VOID (outline_function)(GX_DRAW_CONTEXT context, INT xcenter, INT ycenter, UINT r);
88
89			/* pick up the current drawing context */
90		7216	context = _gx_system_current_draw_context;
91
92		7216	brush = &context -> gx_draw_context_brush;
93
94		7216	brush_width = (brush -> gx_brush_width + 1) >> 1;
95
96		7216	_gx_utility_rectangle_define(&bound, (GX_VALUE)(xcenter - (INT)r - brush_width), (GX_VALUE)(ycenter - (INT)r - brush_width),
97		7216	(GX_VALUE)(xcenter + (INT)r + brush_width), (GX_VALUE)(ycenter + (INT)r + brush_width));
98
99		7216	brush_width = brush -> gx_brush_width;
100
101			/* clip the circle bounding box to the dirty rectangle */
102	✓✓	7216	if (!_gx_utility_rectangle_overlap_detect(&bound, &context -> gx_draw_context_dirty, &bound))
103			{
104			/* nothing to draw, return */
105		1	return GX_SUCCESS;
106			}
107
108			/* pick up current display driver */
109		7215	display = context -> gx_draw_context_display;
110
111			/* configure outline function to utilize */
112		7215	outline_function = GX_NULL;
113
114			/Set normal outline draw function./
115	✓✓	7215	if (brush_width == 1)
116			{
117			/* if anti-alias is requested and this is supported by display, use it */
118	✓✓	693	if ((brush -> gx_brush_style & GX_BRUSH_ALIAS) &&
119	✓✓	320	display -> gx_display_driver_anti_aliased_circle_draw != GX_NULL)
120			{
121		306	outline_function = display -> gx_display_driver_anti_aliased_circle_draw;
122			}
123			else
124			{
125			/* otherwise use non-aliased outline */
126		387	outline_function = display -> gx_display_driver_circle_draw;
127			}
128			}
129			else
130			{
131	✓✓	6522	if (brush_width > 1)
132			{
133			/* if anti-alias is requested and this is supported by display, use it */
134	✓✓	5724	if ((brush -> gx_brush_style & GX_BRUSH_ALIAS) &&
135	✓✓	4579	display -> gx_display_driver_anti_aliased_wide_circle_draw != GX_NULL )
136			{
137		4322	outline_function = display -> gx_display_driver_anti_aliased_wide_circle_draw;
138			}
139			else
140			{
141			/* otherwise use non-aliased outline */
142		1402	outline_function = display -> gx_display_driver_wide_circle_draw;
143			}
144			}
145			}
146
147			/* test to determine if the bounding rectangle overlaps the region we are allowed to draw
148			into. For each view that overlaps the bounding rectangle, do some drawing.
149			*/
150		7215	view = context -> gx_draw_context_view_head;
151
152	✓✓	15249	while (view)
153			{
154	✓✓	8034	if (!_gx_utility_rectangle_overlap_detect(&view -> gx_view_rectangle, &bound, &clip_rect))
155			{
156		1092	view = view -> gx_view_next;
157		1092	continue;
158			}
159
160			/* we have a view into which we can draw the line, do it */
161		6942	context -> gx_draw_context_clip = &clip_rect;
162
163	✓✓	6942	if (brush -> gx_brush_style & (GX_BRUSH_SOLID_FILL \| GX_BRUSH_PIXELMAP_FILL))
164			{
165		2762	display -> gx_display_driver_circle_fill(context, xcenter, ycenter, r);
166			}
167
168	✓✓	6942	if (outline_function)
169			{
170		6144	outline_function(context, xcenter, ycenter, r);
171			}
172
173		6942	view = view -> gx_view_next;
174			}
175
176			/* Return successful completion. */
177		7215	return(GX_SUCCESS);
178			}
179			#endif
180