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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	gx_display_driver_16bpp_block_move.c	Lines:	56	56	100.0 %
Date:	2025-09-29 22:21:50	Branches:	18	18	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_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                                                  */
/*                                                                        */
/*  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    */
/*  10-31-2023     Ting Zhu                 Modified comment(s),          */
/*                                            added canvas status check,  */
/*                                            resulting in version 6.3.0  */
/*                                                                        */
/**************************************************************************/
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			*
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_display.h"
28			#include "gx_system.h"
29			#include "gx_utility.h"
30
31			/**************************************************************************/
32			/* */
33			/* FUNCTION RELEASE */
34			/* */
35			/* _gx_display_driver_16bpp_block_move PORTABLE C */
36			/* 6.3.0 */
37			/* AUTHOR */
38			/* */
39			/* Kenneth Maxwell, Microsoft Corporation */
40			/* */
41			/* DESCRIPTION */
42			/* */
43			/* Generic 16bpp color format display driver block moving function. */
44			/* */
45			/* INPUT */
46			/* */
47			/* context Draw context */
48			/* block The rectangle to be moved */
49			/* xshift Amount to move on X-axis */
50			/* yshift Amount to move on Y-axis */
51			/* */
52			/* OUTPUT */
53			/* */
54			/* None */
55			/* */
56			/* CALLS */
57			/* */
58			/* memmove Move a block of data */
59			/* */
60			/* CALLED BY */
61			/* */
62			/* GUIX Internal Code */
63			/* */
64			/* RELEASE HISTORY */
65			/* */
66			/* DATE NAME DESCRIPTION */
67			/* */
68			/* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */
69			/* 09-30-2020 Kenneth Maxwell Modified comment(s), */
70			/* resulting in version 6.1 */
71			/* 10-31-2023 Ting Zhu Modified comment(s), */
72			/* added canvas status check, */
73			/* resulting in version 6.3.0 */
74			/* */
75			/**************************************************************************/
76		308	VOID _gx_display_driver_16bpp_block_move(GX_DRAW_CONTEXT *context,
77			GX_RECTANGLE *block, INT xshift, INT yshift)
78			{
79			USHORT *pGet;
80			USHORT *pPut;
81			INT width;
82			INT width_in_bytes;
83			INT y;
84			INT height;
85
86			#ifdef GX_ENABLE_CANVAS_PARTIAL_FRAME_BUFFER
87			if (context -> gx_draw_context_canvas -> gx_canvas_status & GX_CANVAS_PARTIAL_FRAME_BUFFER)
88			{
89			/* Not supported. */
90			return;
91			}
92			#endif
93
94	✓✓	308	if (xshift)
95			{
96	✓✓	215	if (xshift > 0)
97			{
98			/* have to copy from left to right. */
99		110	pPut = (USHORT *)context -> gx_draw_context_memory;
100		110	pPut += block -> gx_rectangle_top * context -> gx_draw_context_pitch;
101		110	pPut += block -> gx_rectangle_left + xshift;
102
103		110	pGet = (USHORT *)context -> gx_draw_context_memory;
104		110	pGet += block -> gx_rectangle_top * context -> gx_draw_context_pitch;
105		110	pGet += block -> gx_rectangle_left;
106
107		110	width = block -> gx_rectangle_right - block -> gx_rectangle_left + 1 - xshift;
108		110	width_in_bytes = width * (int)sizeof(USHORT);
109
110	✓✓	110	if (width_in_bytes <= 0)
111			{
112		1	return;
113			}
114
115	✓✓	12451	for (y = block -> gx_rectangle_top; y <= block -> gx_rectangle_bottom; y++)
116			{
117		12342	memmove(pPut, pGet, (size_t)width_in_bytes);
118
119		12342	pPut += context -> gx_draw_context_pitch;
120		12342	pGet += context -> gx_draw_context_pitch;
121			}
122			}
123			else
124			{
125			/* have to copy from right to left */
126		105	pPut = (USHORT *)context -> gx_draw_context_memory;
127		105	pPut += block -> gx_rectangle_top * context -> gx_draw_context_pitch;
128		105	pPut += block -> gx_rectangle_left;
129
130		105	pGet = (USHORT *)context -> gx_draw_context_memory;
131		105	pGet += block -> gx_rectangle_top * context -> gx_draw_context_pitch;
132		105	pGet += block -> gx_rectangle_left - xshift;
133
134		105	width = block -> gx_rectangle_right - block -> gx_rectangle_left + 1 + xshift;
135		105	width_in_bytes = width * (int)sizeof(USHORT);
136
137	✓✓	105	if (width_in_bytes <= 0)
138			{
139		1	return;
140			}
141
142	✓✓	11876	for (y = block -> gx_rectangle_top; y <= block -> gx_rectangle_bottom; y++)
143			{
144		11772	memmove(pPut, pGet, (size_t)width_in_bytes);
145
146		11772	pPut += context -> gx_draw_context_pitch;
147		11772	pGet += context -> gx_draw_context_pitch;
148			}
149			}
150			}
151			else
152			{
153		93	width = block -> gx_rectangle_right - block -> gx_rectangle_left + 1;
154		93	width_in_bytes = width * (int)sizeof(USHORT);
155
156	✓✓	93	if (yshift > 0)
157			{
158			/* have to copy from top to bottom */
159		48	pPut = (USHORT *)context -> gx_draw_context_memory;
160		48	pPut += block -> gx_rectangle_bottom * context -> gx_draw_context_pitch;
161		48	pPut += block -> gx_rectangle_left;
162
163		48	pGet = (USHORT *)context -> gx_draw_context_memory;
164		48	pGet += (block -> gx_rectangle_bottom - yshift) * context -> gx_draw_context_pitch;
165		48	pGet += block -> gx_rectangle_left;
166
167		48	height = block -> gx_rectangle_bottom - block -> gx_rectangle_top + 1 - yshift;
168
169	✓✓	5681	for (y = 0; y < height; y++)
170			{
171		5633	memmove(pPut, pGet, (size_t)width_in_bytes);
172
173		5633	pPut -= context -> gx_draw_context_pitch;
174		5633	pGet -= context -> gx_draw_context_pitch;
175			}
176			}
177			else
178			{
179			/* have to copy from bottom to top */
180		45	pPut = (USHORT *)context -> gx_draw_context_memory;
181		45	pPut += block -> gx_rectangle_top * context -> gx_draw_context_pitch;
182		45	pPut += block -> gx_rectangle_left;
183
184		45	pGet = (USHORT *)context -> gx_draw_context_memory;
185		45	pGet += (block -> gx_rectangle_top - yshift) * context -> gx_draw_context_pitch;
186		45	pGet += block -> gx_rectangle_left;
187
188		45	height = block -> gx_rectangle_bottom - block -> gx_rectangle_top + 1 + yshift;
189
190	✓✓	5225	for (y = 0; y < height; y++)
191			{
192		5180	memmove(pPut, pGet, (size_t)width_in_bytes);
193
194		5180	pPut += context -> gx_draw_context_pitch;
195		5180	pGet += context -> gx_draw_context_pitch;
196			}
197			}
198			}
199			}
200