Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	gx_display_driver_8bpp_glyph_3bit_draw.c	Lines:	45	45	100.0 %
Date:	2024-12-05 08:52:37	Branches:	10	10	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"


/**************************************************************************/
/*                                                                        */
/*  FUNCTION                                               RELEASE        */
/*                                                                        */
/*    _gx_display_driver_8bpp_glyph_3bit_draw             PORTABLE C      */
/*                                                           6.1          */
/*  AUTHOR                                                                */
/*                                                                        */
/*    Kenneth Maxwell, Microsoft Corporation                              */
/*                                                                        */
/*  DESCRIPTION                                                           */
/*                                                                        */
/*    This draws the specified 3bit glyph using the current context,      */
/*    clipped to one viewport                                             */
/*                                                                        */
/*  INPUT                                                                 */
/*                                                                        */
/*    context                               Draw context                  */
/*    draw_position                         The X and Y coordinate where  */
/*                                            the glyph is drawn to       */
/*    string                                String to draw                */
/*    count                                 Count of string characters    */
/*    view                                  view to clip drawing within   */
/*                                                                        */
/*  OUTPUT                                                                */
/*                                                                        */
/*    None                                                                */
/*                                                                        */
/*  CALLS                                                                 */
/*                                                                        */
/*    None                                                                */
/*                                                                        */
/*  CALLED BY                                                             */
/*                                                                        */
/*    _gx_canvas_text_draw                                                */
/*                                                                        */
/*  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_8bpp_glyph_3bit_draw(GX_DRAW_CONTEXT *context, GX_RECTANGLE *draw_area, GX_POINT *map_offset, GX_CONST GX_GLYPH *glyph)
{
GX_UBYTE *glyph_row;
GX_UBYTE *glyph_data;
UINT      row;
UINT      pixel_width = 0;
UINT      leading_pixel;
UINT      trailing_pixel;
GX_UBYTE  text_color;
UINT      y_height;
GX_UBYTE  alpha;
UINT      pitch;
UINT      index;
GX_UBYTE *put;
GX_UBYTE *draw_start;

    text_color = (GX_UBYTE)(context -> gx_draw_context_brush.gx_brush_line_color + 7);
    pixel_width = (UINT)(draw_area -> gx_rectangle_right - draw_area -> gx_rectangle_left + 1);

    /* Find the width of the glyph */
    pitch = glyph -> gx_glyph_width;
    /* Make it byte-aligned. */
    pitch = (pitch + 1) >> 1;

    glyph_row = (GX_UBYTE *)glyph -> gx_glyph_map;

    if (map_offset -> gx_point_y)
    {
        glyph_row = glyph_row + ((INT)pitch * map_offset -> gx_point_y);
    }

    glyph_row += (map_offset -> gx_point_x >> 1);

    y_height = (UINT)(draw_area -> gx_rectangle_bottom - draw_area -> gx_rectangle_top + 1);

    leading_pixel = (map_offset -> gx_point_x & 1);

    pixel_width -= leading_pixel;

    trailing_pixel = pixel_width & 1;

    pixel_width = pixel_width >> 1;

    draw_start = (GX_UBYTE *)context -> gx_draw_context_memory;
    draw_start += context -> gx_draw_context_pitch * draw_area -> gx_rectangle_top;
    draw_start += draw_area -> gx_rectangle_left;

    for (row = 0; row < y_height; row++)
    {
        glyph_data = glyph_row;

        put = draw_start;

        if (leading_pixel)
        {
            alpha = (*glyph_data) & 0x0f;

            /* use 3bit color gradient instead of 4 bit */
            alpha >>= 1;

            *put = (GX_UBYTE)(text_color - alpha);
            put++;

            glyph_data++;
        }
        for (index = 0; index < pixel_width; index++)
        {
            alpha = (*glyph_data) & 0xf0;

            /* use 3bit color gradient instead of 4 bit */
            alpha >>= 1;

            *put = (GX_UBYTE)(text_color - (alpha >> 4));
            put++;

            alpha = (*glyph_data) & 0x0f;

            /* use 3bit color gradient instead of 4 bit */
            alpha >>= 1;

            *put = (GX_UBYTE)(text_color - alpha);
            put++;
            glyph_data++;
        }

        if (trailing_pixel)
        {
            alpha = (*glyph_data) & 0xf0;

            /* use 3bit color gradient instead of 4 bit */
            alpha >>= 1;

            *put = (GX_UBYTE)(text_color - (alpha >> 4));
            put++;
        }

        glyph_row += pitch;
        draw_start += 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_system.h"
28			#include "gx_utility.h"
29			#include "gx_display.h"
30
31
32			/**************************************************************************/
33			/* */
34			/* FUNCTION RELEASE */
35			/* */
36			/* _gx_display_driver_8bpp_glyph_3bit_draw PORTABLE C */
37			/* 6.1 */
38			/* AUTHOR */
39			/* */
40			/* Kenneth Maxwell, Microsoft Corporation */
41			/* */
42			/* DESCRIPTION */
43			/* */
44			/* This draws the specified 3bit glyph using the current context, */
45			/* clipped to one viewport */
46			/* */
47			/* INPUT */
48			/* */
49			/* context Draw context */
50			/* draw_position The X and Y coordinate where */
51			/* the glyph is drawn to */
52			/* string String to draw */
53			/* count Count of string characters */
54			/* view view to clip drawing within */
55			/* */
56			/* OUTPUT */
57			/* */
58			/* None */
59			/* */
60			/* CALLS */
61			/* */
62			/* None */
63			/* */
64			/* CALLED BY */
65			/* */
66			/* _gx_canvas_text_draw */
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		109339	VOID _gx_display_driver_8bpp_glyph_3bit_draw(GX_DRAW_CONTEXT context, GX_RECTANGLE draw_area, GX_POINT map_offset, GX_CONST GX_GLYPH glyph)
78			{
79			GX_UBYTE *glyph_row;
80			GX_UBYTE *glyph_data;
81			UINT row;
82		109339	UINT pixel_width = 0;
83			UINT leading_pixel;
84			UINT trailing_pixel;
85			GX_UBYTE text_color;
86			UINT y_height;
87			GX_UBYTE alpha;
88			UINT pitch;
89			UINT index;
90			GX_UBYTE *put;
91			GX_UBYTE *draw_start;
92
93		109339	text_color = (GX_UBYTE)(context -> gx_draw_context_brush.gx_brush_line_color + 7);
94		109339	pixel_width = (UINT)(draw_area -> gx_rectangle_right - draw_area -> gx_rectangle_left + 1);
95
96			/* Find the width of the glyph */
97		109339	pitch = glyph -> gx_glyph_width;
98			/* Make it byte-aligned. */
99		109339	pitch = (pitch + 1) >> 1;
100
101		109339	glyph_row = (GX_UBYTE *)glyph -> gx_glyph_map;
102
103	✓✓	109339	if (map_offset -> gx_point_y)
104			{
105		1284	glyph_row = glyph_row + ((INT)pitch * map_offset -> gx_point_y);
106			}
107
108		109339	glyph_row += (map_offset -> gx_point_x >> 1);
109
110		109339	y_height = (UINT)(draw_area -> gx_rectangle_bottom - draw_area -> gx_rectangle_top + 1);
111
112		109339	leading_pixel = (map_offset -> gx_point_x & 1);
113
114		109339	pixel_width -= leading_pixel;
115
116		109339	trailing_pixel = pixel_width & 1;
117
118		109339	pixel_width = pixel_width >> 1;
119
120		109339	draw_start = (GX_UBYTE *)context -> gx_draw_context_memory;
121		109339	draw_start += context -> gx_draw_context_pitch * draw_area -> gx_rectangle_top;
122		109339	draw_start += draw_area -> gx_rectangle_left;
123
124	✓✓	1338023	for (row = 0; row < y_height; row++)
125			{
126		1228684	glyph_data = glyph_row;
127
128		1228684	put = draw_start;
129
130	✓✓	1228684	if (leading_pixel)
131			{
132		6120	alpha = (*glyph_data) & 0x0f;
133
134			/* use 3bit color gradient instead of 4 bit */
135		6120	alpha >>= 1;
136
137		6120	*put = (GX_UBYTE)(text_color - alpha);
138		6120	put++;
139
140		6120	glyph_data++;
141			}
142	✓✓	5713100	for (index = 0; index < pixel_width; index++)
143			{
144		4484416	alpha = (*glyph_data) & 0xf0;
145
146			/* use 3bit color gradient instead of 4 bit */
147		4484416	alpha >>= 1;
148
149		4484416	*put = (GX_UBYTE)(text_color - (alpha >> 4));
150		4484416	put++;
151
152		4484416	alpha = (*glyph_data) & 0x0f;
153
154			/* use 3bit color gradient instead of 4 bit */
155		4484416	alpha >>= 1;
156
157		4484416	*put = (GX_UBYTE)(text_color - alpha);
158		4484416	put++;
159		4484416	glyph_data++;
160			}
161
162	✓✓	1228684	if (trailing_pixel)
163			{
164		711851	alpha = (*glyph_data) & 0xf0;
165
166			/* use 3bit color gradient instead of 4 bit */
167		711851	alpha >>= 1;
168
169		711851	*put = (GX_UBYTE)(text_color - (alpha >> 4));
170		711851	put++;
171			}
172
173		1228684	glyph_row += pitch;
174		1228684	draw_start += context -> gx_draw_context_pitch;
175			}
176		109339	}
177