Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	gx_display_driver_1bpp_block_move.c	Lines:	116	116	100.0 %
Date:	2026-03-06 19:21:09	Branches:	50	50	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_1bpp_block_move                  PORTABLE C      */
/*                                                           6.1          */
/*  AUTHOR                                                                */
/*                                                                        */
/*    Kenneth Maxwell, Microsoft Corporation                              */
/*                                                                        */
/*  DESCRIPTION                                                           */
/*                                                                        */
/*    1-bit color palette 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_1bpp_block_move(GX_DRAW_CONTEXT *context,
                                        GX_RECTANGLE *block, INT xshift, INT yshift)
{
GX_UBYTE *putrow;
GX_UBYTE *getrow;
GX_UBYTE *pGet;
GX_UBYTE *pPut;
INT       width;
INT       column;
INT       y;
INT       height;
INT       stride;
GX_UBYTE  putmask;
GX_UBYTE  getmask;
INT       move_width;

    putrow = (GX_UBYTE *)context -> gx_draw_context_memory;

    stride = (context -> gx_draw_context_pitch + 7) >> 3;

    if (xshift)
    {
        if (xshift > 0)
        {
            /* Copy from left to right.  */
            width = block -> gx_rectangle_right - block -> gx_rectangle_left + 1;
            width -= xshift;

            putrow += block -> gx_rectangle_top * stride;
            getrow = putrow;

            putrow += block -> gx_rectangle_right >> 3;
            getrow += (block -> gx_rectangle_left + width - 1) >> 3;

            for (y = block -> gx_rectangle_top; y <= block -> gx_rectangle_bottom; y++)
            {
                pPut = putrow;
                pGet = getrow;

                putmask = (GX_UBYTE)(0x80 >> (block -> gx_rectangle_right & 0x07));
                getmask = (GX_UBYTE)(0x80 >> ((block -> gx_rectangle_left + width - 1) & 0x07));

                for (column = 0; column < width; column++)
                {
                    if ((*pGet) & getmask)
                    {
                        *pPut |= putmask;
                    }
                    else
                    {
                        *pPut = (GX_UBYTE)((*pPut) & (~putmask));
                    }

                    if (getmask == 0x80)
                    {
                        getmask = 0x01;
                        pGet--;
                    }
                    else
                    {
                        getmask = (GX_UBYTE)(getmask << 1);
                    }

                    if (putmask == 0x80)
                    {
                        putmask = 0x01;
                        pPut--;
                    }
                    else
                    {
                        putmask = (GX_UBYTE)(putmask << 1);
                    }
                }

                putrow += stride;
                getrow += stride;
            }
        }
        else
        {
            /* Copy from right to left.  */
            width = block -> gx_rectangle_right - block -> gx_rectangle_left + 1;
            width += xshift;

            putrow += block -> gx_rectangle_top * stride;
            getrow = putrow;

            putrow += block -> gx_rectangle_left >> 3;
            getrow += (block -> gx_rectangle_left - xshift) >> 3;

            for (y = block -> gx_rectangle_top; y <= block -> gx_rectangle_bottom; y++)
            {
                pPut = putrow;
                pGet = getrow;

                putmask = (GX_UBYTE)(0x80 >> (block -> gx_rectangle_left & 0x07));
                getmask = (GX_UBYTE)(0x80 >> ((block -> gx_rectangle_left - xshift) & 0x07));

                for (column = 0; column < width; column++)
                {
                    if ((*pGet) & getmask)
                    {
                        *pPut |= putmask;
                    }
                    else
                    {
                        *pPut &= (GX_UBYTE)(~putmask);
                    }

                    getmask >>= 1;
                    putmask >>= 1;

                    if (!getmask)
                    {
                        getmask = 0x80;
                        pGet++;
                    }
                    if (!putmask)
                    {
                        putmask = 0x80;
                        pPut++;
                    }
                }

                putrow += stride;
                getrow += stride;
            }
        }
    }
    else
    {
        width = block -> gx_rectangle_right - block -> gx_rectangle_left + 1;

        if (yshift > 0)
        {
            /* Copy from top to bottom.  */
            putrow += (block -> gx_rectangle_bottom * stride);
            putrow += (block -> gx_rectangle_left >> 3);

            getrow = putrow;
            getrow -= yshift * stride;

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

            for (y = 0; y < height; y++)
            {
                pPut = putrow;
                pGet = getrow;

                putmask = (GX_UBYTE)(0x80 >> (block -> gx_rectangle_left & 0x07));

                column = 0;
                while (column < width)
                {
                    if ((putmask == 0x80) && (width - column >= 8))
                    {
                        move_width = (width - column) >> 3;
                        memmove(pPut, pGet, (size_t)move_width);
                        pPut += move_width;
                        pGet += move_width;
                        column += (move_width << 3);
                    }
                    else
                    {
                        if ((*pGet) & putmask)
                        {
                            *pPut |= putmask;
                        }
                        else
                        {
                            *pPut &= (GX_UBYTE)(~putmask);
                        }

                        putmask >>= 1;

                        if (!putmask)
                        {
                            putmask = 0x80;
                            pPut++;
                            pGet++;
                        }

                        column++;
                    }
                }

                putrow -= stride;
                getrow -= stride;
            }
        }
        else
        {
            /* Copy from bottom to top.  */
            putrow += (block -> gx_rectangle_top * stride);
            putrow += (block -> gx_rectangle_left >> 3);

            getrow = putrow;
            getrow -= yshift * stride;

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

            for (y = 0; y < height; y++)
            {
                pPut = putrow;
                pGet = getrow;

                putmask = (GX_UBYTE)(0x80 >> (block -> gx_rectangle_left & 0x07));

                column = 0;

                while (column < width)
                {
                    if ((putmask == 0x80) && (width - column >= 8))
                    {
                        move_width = (width - column) >> 3;
                        memmove(pPut, pGet, (size_t)move_width);
                        pPut += move_width;
                        pGet += move_width;
                        column += (move_width << 3);
                    }
                    else
                    {
                        if ((*pGet) & putmask)
                        {
                            *pPut |= putmask;
                        }
                        else
                        {
                            *pPut &= (GX_UBYTE)(~putmask);
                        }

                        putmask >>= 1;

                        if (!putmask)
                        {
                            putmask = 0x80;
                            pPut++;
                            pGet++;
                        }

                        column++;
                    }
                }

                putrow += stride;
                getrow += stride;
            }
        }
    }
}



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_1bpp_block_move PORTABLE C */
37			/* 6.1 */
38			/* AUTHOR */
39			/* */
40			/* Kenneth Maxwell, Microsoft Corporation */
41			/* */
42			/* DESCRIPTION */
43			/* */
44			/* 1-bit color palette 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		8	VOID _gx_display_driver_1bpp_block_move(GX_DRAW_CONTEXT *context,
67			GX_RECTANGLE *block, INT xshift, INT yshift)
68			{
69			GX_UBYTE *putrow;
70			GX_UBYTE *getrow;
71			GX_UBYTE *pGet;
72			GX_UBYTE *pPut;
73			INT width;
74			INT column;
75			INT y;
76			INT height;
77			INT stride;
78			GX_UBYTE putmask;
79			GX_UBYTE getmask;
80			INT move_width;
81
82		8	putrow = (GX_UBYTE *)context -> gx_draw_context_memory;
83
84		8	stride = (context -> gx_draw_context_pitch + 7) >> 3;
85
86	✓✓	8	if (xshift)
87			{
88	✓✓	4	if (xshift > 0)
89			{
90			/* Copy from left to right. */
91		3	width = block -> gx_rectangle_right - block -> gx_rectangle_left + 1;
92		3	width -= xshift;
93
94		3	putrow += block -> gx_rectangle_top * stride;
95		3	getrow = putrow;
96
97		3	putrow += block -> gx_rectangle_right >> 3;
98		3	getrow += (block -> gx_rectangle_left + width - 1) >> 3;
99
100	✓✓	345	for (y = block -> gx_rectangle_top; y <= block -> gx_rectangle_bottom; y++)
101			{
102		342	pPut = putrow;
103		342	pGet = getrow;
104
105		342	putmask = (GX_UBYTE)(0x80 >> (block -> gx_rectangle_right & 0x07));
106		342	getmask = (GX_UBYTE)(0x80 >> ((block -> gx_rectangle_left + width - 1) & 0x07));
107
108	✓✓	53010	for (column = 0; column < width; column++)
109			{
110	✓✓	52668	if ((*pGet) & getmask)
111			{
112		14664	*pPut \|= putmask;
113			}
114			else
115			{
116		38004	pPut = (GX_UBYTE)((pPut) & (~putmask));
117			}
118
119	✓✓	52668	if (getmask == 0x80)
120			{
121		6726	getmask = 0x01;
122		6726	pGet--;
123			}
124			else
125			{
126		45942	getmask = (GX_UBYTE)(getmask << 1);
127			}
128
129	✓✓	52668	if (putmask == 0x80)
130			{
131		6384	putmask = 0x01;
132		6384	pPut--;
133			}
134			else
135			{
136		46284	putmask = (GX_UBYTE)(putmask << 1);
137			}
138			}
139
140		342	putrow += stride;
141		342	getrow += stride;
142			}
143			}
144			else
145			{
146			/* Copy from right to left. */
147		1	width = block -> gx_rectangle_right - block -> gx_rectangle_left + 1;
148		1	width += xshift;
149
150		1	putrow += block -> gx_rectangle_top * stride;
151		1	getrow = putrow;
152
153		1	putrow += block -> gx_rectangle_left >> 3;
154		1	getrow += (block -> gx_rectangle_left - xshift) >> 3;
155
156	✓✓	115	for (y = block -> gx_rectangle_top; y <= block -> gx_rectangle_bottom; y++)
157			{
158		114	pPut = putrow;
159		114	pGet = getrow;
160
161		114	putmask = (GX_UBYTE)(0x80 >> (block -> gx_rectangle_left & 0x07));
162		114	getmask = (GX_UBYTE)(0x80 >> ((block -> gx_rectangle_left - xshift) & 0x07));
163
164	✓✓	9690	for (column = 0; column < width; column++)
165			{
166	✓✓	9576	if ((*pGet) & getmask)
167			{
168		1656	*pPut \|= putmask;
169			}
170			else
171			{
172		7920	*pPut &= (GX_UBYTE)(~putmask);
173			}
174
175		9576	getmask >>= 1;
176		9576	putmask >>= 1;
177
178	✓✓	9576	if (!getmask)
179			{
180		1140	getmask = 0x80;
181		1140	pGet++;
182			}
183	✓✓	9576	if (!putmask)
184			{
185		1140	putmask = 0x80;
186		1140	pPut++;
187			}
188			}
189
190		114	putrow += stride;
191		114	getrow += stride;
192			}
193			}
194			}
195			else
196			{
197		4	width = block -> gx_rectangle_right - block -> gx_rectangle_left + 1;
198
199	✓✓	4	if (yshift > 0)
200			{
201			/* Copy from top to bottom. */
202		3	putrow += (block -> gx_rectangle_bottom * stride);
203		3	putrow += (block -> gx_rectangle_left >> 3);
204
205		3	getrow = putrow;
206		3	getrow -= yshift * stride;
207
208		3	height = block -> gx_rectangle_bottom - block -> gx_rectangle_top + 1;
209		3	height -= yshift;
210
211	✓✓	297	for (y = 0; y < height; y++)
212			{
213		294	pPut = putrow;
214		294	pGet = getrow;
215
216		294	putmask = (GX_UBYTE)(0x80 >> (block -> gx_rectangle_left & 0x07));
217
218		294	column = 0;
219	✓✓	2624	while (column < width)
220			{
221	✓✓✓✓	2330	if ((putmask == 0x80) && (width - column >= 8))
222			{
223		294	move_width = (width - column) >> 3;
224		294	memmove(pPut, pGet, (size_t)move_width);
225		294	pPut += move_width;
226		294	pGet += move_width;
227		294	column += (move_width << 3);
228			}
229			else
230			{
231	✓✓	2036	if ((*pGet) & putmask)
232			{
233		1176	*pPut \|= putmask;
234			}
235			else
236			{
237		860	*pPut &= (GX_UBYTE)(~putmask);
238			}
239
240		2036	putmask >>= 1;
241
242	✓✓	2036	if (!putmask)
243			{
244		68	putmask = 0x80;
245		68	pPut++;
246		68	pGet++;
247			}
248
249		2036	column++;
250			}
251			}
252
253		294	putrow -= stride;
254		294	getrow -= stride;
255			}
256			}
257			else
258			{
259			/* Copy from bottom to top. */
260		1	putrow += (block -> gx_rectangle_top * stride);
261		1	putrow += (block -> gx_rectangle_left >> 3);
262
263		1	getrow = putrow;
264		1	getrow -= yshift * stride;
265
266		1	height = block -> gx_rectangle_bottom - block -> gx_rectangle_top + 1;
267		1	height += yshift;
268
269	✓✓	69	for (y = 0; y < height; y++)
270			{
271		68	pPut = putrow;
272		68	pGet = getrow;
273
274		68	putmask = (GX_UBYTE)(0x80 >> (block -> gx_rectangle_left & 0x07));
275
276		68	column = 0;
277
278	✓✓	816	while (column < width)
279			{
280	✓✓✓✓	748	if ((putmask == 0x80) && (width - column >= 8))
281			{
282		68	move_width = (width - column) >> 3;
283		68	memmove(pPut, pGet, (size_t)move_width);
284		68	pPut += move_width;
285		68	pGet += move_width;
286		68	column += (move_width << 3);
287			}
288			else
289			{
290	✓✓	680	if ((*pGet) & putmask)
291			{
292		526	*pPut \|= putmask;
293			}
294			else
295			{
296		154	*pPut &= (GX_UBYTE)(~putmask);
297			}
298
299		680	putmask >>= 1;
300
301	✓✓	680	if (!putmask)
302			{
303		68	putmask = 0x80;
304		68	pPut++;
305		68	pGet++;
306			}
307
308		680	column++;
309			}
310			}
311
312		68	putrow += stride;
313		68	getrow += stride;
314			}
315			}
316			}
317		8	}
318