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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	gx_display_driver_1bpp_block_move.c	Lines:	116	116	100.0 %
Date:	2024-12-05 08:52:37	Branches:	50	50	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_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                                                  */
/*                                                                        */
/*  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    */
/*                                                                        */
/**************************************************************************/
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			*
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_1bpp_block_move PORTABLE C */
36			/* 6.1 */
37			/* AUTHOR */
38			/* */
39			/* Kenneth Maxwell, Microsoft Corporation */
40			/* */
41			/* DESCRIPTION */
42			/* */
43			/* 1-bit color palette 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			/* */
72			/**************************************************************************/
73		8	VOID _gx_display_driver_1bpp_block_move(GX_DRAW_CONTEXT *context,
74			GX_RECTANGLE *block, INT xshift, INT yshift)
75			{
76			GX_UBYTE *putrow;
77			GX_UBYTE *getrow;
78			GX_UBYTE *pGet;
79			GX_UBYTE *pPut;
80			INT width;
81			INT column;
82			INT y;
83			INT height;
84			INT stride;
85			GX_UBYTE putmask;
86			GX_UBYTE getmask;
87			INT move_width;
88
89		8	putrow = (GX_UBYTE *)context -> gx_draw_context_memory;
90
91		8	stride = (context -> gx_draw_context_pitch + 7) >> 3;
92
93	✓✓	8	if (xshift)
94			{
95	✓✓	4	if (xshift > 0)
96			{
97			/* Copy from left to right. */
98		3	width = block -> gx_rectangle_right - block -> gx_rectangle_left + 1;
99		3	width -= xshift;
100
101		3	putrow += block -> gx_rectangle_top * stride;
102		3	getrow = putrow;
103
104		3	putrow += block -> gx_rectangle_right >> 3;
105		3	getrow += (block -> gx_rectangle_left + width - 1) >> 3;
106
107	✓✓	345	for (y = block -> gx_rectangle_top; y <= block -> gx_rectangle_bottom; y++)
108			{
109		342	pPut = putrow;
110		342	pGet = getrow;
111
112		342	putmask = (GX_UBYTE)(0x80 >> (block -> gx_rectangle_right & 0x07));
113		342	getmask = (GX_UBYTE)(0x80 >> ((block -> gx_rectangle_left + width - 1) & 0x07));
114
115	✓✓	53010	for (column = 0; column < width; column++)
116			{
117	✓✓	52668	if ((*pGet) & getmask)
118			{
119		14664	*pPut \|= putmask;
120			}
121			else
122			{
123		38004	pPut = (GX_UBYTE)((pPut) & (~putmask));
124			}
125
126	✓✓	52668	if (getmask == 0x80)
127			{
128		6726	getmask = 0x01;
129		6726	pGet--;
130			}
131			else
132			{
133		45942	getmask = (GX_UBYTE)(getmask << 1);
134			}
135
136	✓✓	52668	if (putmask == 0x80)
137			{
138		6384	putmask = 0x01;
139		6384	pPut--;
140			}
141			else
142			{
143		46284	putmask = (GX_UBYTE)(putmask << 1);
144			}
145			}
146
147		342	putrow += stride;
148		342	getrow += stride;
149			}
150			}
151			else
152			{
153			/* Copy from right to left. */
154		1	width = block -> gx_rectangle_right - block -> gx_rectangle_left + 1;
155		1	width += xshift;
156
157		1	putrow += block -> gx_rectangle_top * stride;
158		1	getrow = putrow;
159
160		1	putrow += block -> gx_rectangle_left >> 3;
161		1	getrow += (block -> gx_rectangle_left - xshift) >> 3;
162
163	✓✓	115	for (y = block -> gx_rectangle_top; y <= block -> gx_rectangle_bottom; y++)
164			{
165		114	pPut = putrow;
166		114	pGet = getrow;
167
168		114	putmask = (GX_UBYTE)(0x80 >> (block -> gx_rectangle_left & 0x07));
169		114	getmask = (GX_UBYTE)(0x80 >> ((block -> gx_rectangle_left - xshift) & 0x07));
170
171	✓✓	9690	for (column = 0; column < width; column++)
172			{
173	✓✓	9576	if ((*pGet) & getmask)
174			{
175		1656	*pPut \|= putmask;
176			}
177			else
178			{
179		7920	*pPut &= (GX_UBYTE)(~putmask);
180			}
181
182		9576	getmask >>= 1;
183		9576	putmask >>= 1;
184
185	✓✓	9576	if (!getmask)
186			{
187		1140	getmask = 0x80;
188		1140	pGet++;
189			}
190	✓✓	9576	if (!putmask)
191			{
192		1140	putmask = 0x80;
193		1140	pPut++;
194			}
195			}
196
197		114	putrow += stride;
198		114	getrow += stride;
199			}
200			}
201			}
202			else
203			{
204		4	width = block -> gx_rectangle_right - block -> gx_rectangle_left + 1;
205
206	✓✓	4	if (yshift > 0)
207			{
208			/* Copy from top to bottom. */
209		3	putrow += (block -> gx_rectangle_bottom * stride);
210		3	putrow += (block -> gx_rectangle_left >> 3);
211
212		3	getrow = putrow;
213		3	getrow -= yshift * stride;
214
215		3	height = block -> gx_rectangle_bottom - block -> gx_rectangle_top + 1;
216		3	height -= yshift;
217
218	✓✓	297	for (y = 0; y < height; y++)
219			{
220		294	pPut = putrow;
221		294	pGet = getrow;
222
223		294	putmask = (GX_UBYTE)(0x80 >> (block -> gx_rectangle_left & 0x07));
224
225		294	column = 0;
226	✓✓	2624	while (column < width)
227			{
228	✓✓✓✓	2330	if ((putmask == 0x80) && (width - column >= 8))
229			{
230		294	move_width = (width - column) >> 3;
231		294	memmove(pPut, pGet, (size_t)move_width);
232		294	pPut += move_width;
233		294	pGet += move_width;
234		294	column += (move_width << 3);
235			}
236			else
237			{
238	✓✓	2036	if ((*pGet) & putmask)
239			{
240		1176	*pPut \|= putmask;
241			}
242			else
243			{
244		860	*pPut &= (GX_UBYTE)(~putmask);
245			}
246
247		2036	putmask >>= 1;
248
249	✓✓	2036	if (!putmask)
250			{
251		68	putmask = 0x80;
252		68	pPut++;
253		68	pGet++;
254			}
255
256		2036	column++;
257			}
258			}
259
260		294	putrow -= stride;
261		294	getrow -= stride;
262			}
263			}
264			else
265			{
266			/* Copy from bottom to top. */
267		1	putrow += (block -> gx_rectangle_top * stride);
268		1	putrow += (block -> gx_rectangle_left >> 3);
269
270		1	getrow = putrow;
271		1	getrow -= yshift * stride;
272
273		1	height = block -> gx_rectangle_bottom - block -> gx_rectangle_top + 1;
274		1	height += yshift;
275
276	✓✓	69	for (y = 0; y < height; y++)
277			{
278		68	pPut = putrow;
279		68	pGet = getrow;
280
281		68	putmask = (GX_UBYTE)(0x80 >> (block -> gx_rectangle_left & 0x07));
282
283		68	column = 0;
284
285	✓✓	816	while (column < width)
286			{
287	✓✓✓✓	748	if ((putmask == 0x80) && (width - column >= 8))
288			{
289		68	move_width = (width - column) >> 3;
290		68	memmove(pPut, pGet, (size_t)move_width);
291		68	pPut += move_width;
292		68	pGet += move_width;
293		68	column += (move_width << 3);
294			}
295			else
296			{
297	✓✓	680	if ((*pGet) & putmask)
298			{
299		526	*pPut \|= putmask;
300			}
301			else
302			{
303		154	*pPut &= (GX_UBYTE)(~putmask);
304			}
305
306		680	putmask >>= 1;
307
308	✓✓	680	if (!putmask)
309			{
310		68	putmask = 0x80;
311		68	pPut++;
312		68	pGet++;
313			}
314
315		680	column++;
316			}
317			}
318
319		68	putrow += stride;
320		68	getrow += stride;
321			}
322			}
323			}
324		8	}
325