Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	gx_display_driver_16bpp_block_move.c	Lines:	56	56	100.0 %
Date:	2026-03-06 19:21:09	Branches:	18	18	100.0 %


/***************************************************************************
 * Copyright (c) 2024 Microsoft Corporation
 * Copyright (c) 2026-present Eclipse ThreadX contributors
 *
 * 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_display.h"
#include "gx_system.h"
#include "gx_utility.h"

/**************************************************************************/
/*                                                                        */
/*  FUNCTION                                               RELEASE        */
/*                                                                        */
/*    _gx_display_driver_16bpp_block_move                 PORTABLE C      */
/*                                                           6.3.0        */
/*  AUTHOR                                                                */
/*                                                                        */
/*    Kenneth Maxwell, Microsoft Corporation                              */
/*                                                                        */
/*  DESCRIPTION                                                           */
/*                                                                        */
/*    Generic 16bpp color format display driver block moving function.    */
/*                                                                        */
/*  INPUT                                                                 */
/*                                                                        */
/*    context                               Draw context                  */
/*    block                                 The rectangle to be moved     */
/*    xshift                                Amount to move on X-axis      */
/*    yshift                                Amount to move on Y-axis      */
/*                                                                        */
/*  OUTPUT                                                                */
/*                                                                        */
/*    None                                                                */
/*                                                                        */
/*  CALLS                                                                 */
/*                                                                        */
/*    memmove                               Move a block of data          */
/*                                                                        */
/*  CALLED BY                                                             */
/*                                                                        */
/*    GUIX Internal Code                                                  */
/*                                                                        */
/**************************************************************************/
VOID _gx_display_driver_16bpp_block_move(GX_DRAW_CONTEXT *context,
                                         GX_RECTANGLE *block, INT xshift, INT yshift)
{
USHORT *pGet;
USHORT *pPut;
INT     width;
INT     width_in_bytes;
INT     y;
INT     height;

#ifdef GX_ENABLE_CANVAS_PARTIAL_FRAME_BUFFER
    if (context -> gx_draw_context_canvas -> gx_canvas_status & GX_CANVAS_PARTIAL_FRAME_BUFFER)
    {
        /* Not supported. */
        return;
    }
#endif

    if (xshift)
    {
        if (xshift > 0)
        {
            /* have to copy from left to right. */
            pPut = (USHORT *)context -> gx_draw_context_memory;
            pPut += block -> gx_rectangle_top * context -> gx_draw_context_pitch;
            pPut += block -> gx_rectangle_left + xshift;

            pGet = (USHORT *)context -> gx_draw_context_memory;
            pGet += block -> gx_rectangle_top * context -> gx_draw_context_pitch;
            pGet += block -> gx_rectangle_left;

            width = block -> gx_rectangle_right - block -> gx_rectangle_left + 1 - xshift;
            width_in_bytes = width * (int)sizeof(USHORT);

            if (width_in_bytes <= 0)
            {
                return;
            }

            for (y = block -> gx_rectangle_top; y <= block -> gx_rectangle_bottom; y++)
            {
                memmove(pPut, pGet, (size_t)width_in_bytes);

                pPut += context -> gx_draw_context_pitch;
                pGet += context -> gx_draw_context_pitch;
            }
        }
        else
        {
            /* have to copy from right to left */
            pPut = (USHORT *)context -> gx_draw_context_memory;
            pPut += block -> gx_rectangle_top * context -> gx_draw_context_pitch;
            pPut += block -> gx_rectangle_left;

            pGet = (USHORT *)context -> gx_draw_context_memory;
            pGet += block -> gx_rectangle_top * context -> gx_draw_context_pitch;
            pGet += block -> gx_rectangle_left - xshift;

            width = block -> gx_rectangle_right - block -> gx_rectangle_left + 1 + xshift;
            width_in_bytes = width * (int)sizeof(USHORT);

            if (width_in_bytes <= 0)
            {
                return;
            }

            for (y = block -> gx_rectangle_top; y <= block -> gx_rectangle_bottom; y++)
            {
                memmove(pPut, pGet, (size_t)width_in_bytes);

                pPut += context -> gx_draw_context_pitch;
                pGet += context -> gx_draw_context_pitch;
            }
        }
    }
    else
    {
        width = block -> gx_rectangle_right - block -> gx_rectangle_left + 1;
        width_in_bytes = width * (int)sizeof(USHORT);

        if (yshift > 0)
        {
            /* have to copy from top to bottom */
            pPut = (USHORT *)context -> gx_draw_context_memory;
            pPut += block -> gx_rectangle_bottom * context -> gx_draw_context_pitch;
            pPut += block -> gx_rectangle_left;

            pGet = (USHORT *)context -> gx_draw_context_memory;
            pGet += (block -> gx_rectangle_bottom - yshift) * context -> gx_draw_context_pitch;
            pGet += block -> gx_rectangle_left;

            height = block -> gx_rectangle_bottom - block -> gx_rectangle_top + 1 - yshift;

            for (y = 0; y < height; y++)
            {
                memmove(pPut, pGet, (size_t)width_in_bytes);

                pPut -= context -> gx_draw_context_pitch;
                pGet -= context -> gx_draw_context_pitch;
            }
        }
        else
        {
            /* have to copy from bottom to top */
            pPut = (USHORT *)context -> gx_draw_context_memory;
            pPut += block -> gx_rectangle_top * context -> gx_draw_context_pitch;
            pPut += block -> gx_rectangle_left;

            pGet = (USHORT *)context -> gx_draw_context_memory;
            pGet += (block -> gx_rectangle_top - yshift) * context -> gx_draw_context_pitch;
            pGet += block -> gx_rectangle_left;

            height = block -> gx_rectangle_bottom - block -> gx_rectangle_top + 1 + yshift;

            for (y = 0; y < height; y++)
            {
                memmove(pPut, pGet, (size_t)width_in_bytes);

                pPut += context -> gx_draw_context_pitch;
                pGet += context -> gx_draw_context_pitch;
            }
        }
    }
}



Generated by: GCOVR (Version 4.1)

Line	Branch	Exec	Source
1			/***************************************************************************
2			* Copyright (c) 2024 Microsoft Corporation
3			* Copyright (c) 2026-present Eclipse ThreadX contributors
4			*
5			* This program and the accompanying materials are made available under the
6			* terms of the MIT License which is available at
7			* https://opensource.org/licenses/MIT.
8			*
9			* SPDX-License-Identifier: MIT
10			**************************************************************************/
11
12
13			/**************************************************************************/
14			/**************************************************************************/
15			/** */
16			/** GUIX Component */
17			/** */
18			/** Display Management (Display) */
19			/** */
20			/**************************************************************************/
21
22			#define GX_SOURCE_CODE
23
24
25			/* Include necessary system files. */
26
27			#include "gx_api.h"
28			#include "gx_display.h"
29			#include "gx_system.h"
30			#include "gx_utility.h"
31
32			/**************************************************************************/
33			/* */
34			/* FUNCTION RELEASE */
35			/* */
36			/* _gx_display_driver_16bpp_block_move PORTABLE C */
37			/* 6.3.0 */
38			/* AUTHOR */
39			/* */
40			/* Kenneth Maxwell, Microsoft Corporation */
41			/* */
42			/* DESCRIPTION */
43			/* */
44			/* Generic 16bpp color format display driver block moving function. */
45			/* */
46			/* INPUT */
47			/* */
48			/* context Draw context */
49			/* block The rectangle to be moved */
50			/* xshift Amount to move on X-axis */
51			/* yshift Amount to move on Y-axis */
52			/* */
53			/* OUTPUT */
54			/* */
55			/* None */
56			/* */
57			/* CALLS */
58			/* */
59			/* memmove Move a block of data */
60			/* */
61			/* CALLED BY */
62			/* */
63			/* GUIX Internal Code */
64			/* */
65			/**************************************************************************/
66		308	VOID _gx_display_driver_16bpp_block_move(GX_DRAW_CONTEXT *context,
67			GX_RECTANGLE *block, INT xshift, INT yshift)
68			{
69			USHORT *pGet;
70			USHORT *pPut;
71			INT width;
72			INT width_in_bytes;
73			INT y;
74			INT height;
75
76			#ifdef GX_ENABLE_CANVAS_PARTIAL_FRAME_BUFFER
77			if (context -> gx_draw_context_canvas -> gx_canvas_status & GX_CANVAS_PARTIAL_FRAME_BUFFER)
78			{
79			/* Not supported. */
80			return;
81			}
82			#endif
83
84	✓✓	308	if (xshift)
85			{
86	✓✓	215	if (xshift > 0)
87			{
88			/* have to copy from left to right. */
89		110	pPut = (USHORT *)context -> gx_draw_context_memory;
90		110	pPut += block -> gx_rectangle_top * context -> gx_draw_context_pitch;
91		110	pPut += block -> gx_rectangle_left + xshift;
92
93		110	pGet = (USHORT *)context -> gx_draw_context_memory;
94		110	pGet += block -> gx_rectangle_top * context -> gx_draw_context_pitch;
95		110	pGet += block -> gx_rectangle_left;
96
97		110	width = block -> gx_rectangle_right - block -> gx_rectangle_left + 1 - xshift;
98		110	width_in_bytes = width * (int)sizeof(USHORT);
99
100	✓✓	110	if (width_in_bytes <= 0)
101			{
102		1	return;
103			}
104
105	✓✓	12451	for (y = block -> gx_rectangle_top; y <= block -> gx_rectangle_bottom; y++)
106			{
107		12342	memmove(pPut, pGet, (size_t)width_in_bytes);
108
109		12342	pPut += context -> gx_draw_context_pitch;
110		12342	pGet += context -> gx_draw_context_pitch;
111			}
112			}
113			else
114			{
115			/* have to copy from right to left */
116		105	pPut = (USHORT *)context -> gx_draw_context_memory;
117		105	pPut += block -> gx_rectangle_top * context -> gx_draw_context_pitch;
118		105	pPut += block -> gx_rectangle_left;
119
120		105	pGet = (USHORT *)context -> gx_draw_context_memory;
121		105	pGet += block -> gx_rectangle_top * context -> gx_draw_context_pitch;
122		105	pGet += block -> gx_rectangle_left - xshift;
123
124		105	width = block -> gx_rectangle_right - block -> gx_rectangle_left + 1 + xshift;
125		105	width_in_bytes = width * (int)sizeof(USHORT);
126
127	✓✓	105	if (width_in_bytes <= 0)
128			{
129		1	return;
130			}
131
132	✓✓	11876	for (y = block -> gx_rectangle_top; y <= block -> gx_rectangle_bottom; y++)
133			{
134		11772	memmove(pPut, pGet, (size_t)width_in_bytes);
135
136		11772	pPut += context -> gx_draw_context_pitch;
137		11772	pGet += context -> gx_draw_context_pitch;
138			}
139			}
140			}
141			else
142			{
143		93	width = block -> gx_rectangle_right - block -> gx_rectangle_left + 1;
144		93	width_in_bytes = width * (int)sizeof(USHORT);
145
146	✓✓	93	if (yshift > 0)
147			{
148			/* have to copy from top to bottom */
149		48	pPut = (USHORT *)context -> gx_draw_context_memory;
150		48	pPut += block -> gx_rectangle_bottom * context -> gx_draw_context_pitch;
151		48	pPut += block -> gx_rectangle_left;
152
153		48	pGet = (USHORT *)context -> gx_draw_context_memory;
154		48	pGet += (block -> gx_rectangle_bottom - yshift) * context -> gx_draw_context_pitch;
155		48	pGet += block -> gx_rectangle_left;
156
157		48	height = block -> gx_rectangle_bottom - block -> gx_rectangle_top + 1 - yshift;
158
159	✓✓	5681	for (y = 0; y < height; y++)
160			{
161		5633	memmove(pPut, pGet, (size_t)width_in_bytes);
162
163		5633	pPut -= context -> gx_draw_context_pitch;
164		5633	pGet -= context -> gx_draw_context_pitch;
165			}
166			}
167			else
168			{
169			/* have to copy from bottom to top */
170		45	pPut = (USHORT *)context -> gx_draw_context_memory;
171		45	pPut += block -> gx_rectangle_top * context -> gx_draw_context_pitch;
172		45	pPut += block -> gx_rectangle_left;
173
174		45	pGet = (USHORT *)context -> gx_draw_context_memory;
175		45	pGet += (block -> gx_rectangle_top - yshift) * context -> gx_draw_context_pitch;
176		45	pGet += block -> gx_rectangle_left;
177
178		45	height = block -> gx_rectangle_bottom - block -> gx_rectangle_top + 1 + yshift;
179
180	✓✓	5225	for (y = 0; y < height; y++)
181			{
182		5180	memmove(pPut, pGet, (size_t)width_in_bytes);
183
184		5180	pPut += context -> gx_draw_context_pitch;
185		5180	pGet += context -> gx_draw_context_pitch;
186			}
187			}
188			}
189			}
190