Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	gx_display_driver_8bpp_rotated_glyph_3bit_draw.c	Lines:	54	54	100.0 %
Date:	2024-12-05 08:52:37	Branches:	12	12	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_rotated_glyph_3bit_draw     PORTABLE C      */
/*                                                           6.1.4        */
/*  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             */
/*                                                                        */
/*  02-02-2021     Kenneth Maxwell          Initial Version 6.1.4         */
/*                                                                        */
/**************************************************************************/
VOID _gx_display_driver_8bpp_rotated_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;
GX_VALUE  rotated_map_offset_x;
GX_VALUE  rotated_map_offset_y;
GX_VALUE  rotated_left;
GX_VALUE  rotated_top;

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

    y_height = (UINT)(draw_area -> gx_rectangle_right - draw_area -> gx_rectangle_left + 1);

    if (context -> gx_draw_context_display -> gx_display_rotation_angle == GX_SCREEN_ROTATION_CW)
    {
        rotated_left = draw_area -> gx_rectangle_top;
        rotated_top = (GX_VALUE)(context -> gx_draw_context_canvas -> gx_canvas_x_resolution - draw_area -> gx_rectangle_right - 1);

        rotated_map_offset_x = map_offset -> gx_point_y;
        rotated_map_offset_y = (GX_VALUE)(glyph -> gx_glyph_width - map_offset -> gx_point_x - (GX_VALUE)y_height);
    }
    else
    {
        rotated_left = (GX_VALUE)(context -> gx_draw_context_canvas -> gx_canvas_display_offset_y - draw_area -> gx_rectangle_bottom - 1);
        rotated_top = draw_area -> gx_rectangle_left;

        rotated_map_offset_x = (GX_VALUE)(glyph -> gx_glyph_height - map_offset -> gx_point_y - (GX_VALUE)pixel_width);
        rotated_map_offset_y = map_offset -> gx_point_x;
    }

    leading_pixel = (rotated_map_offset_x & 1);

    pixel_width -= leading_pixel;

    trailing_pixel = pixel_width & 1;

    pixel_width = pixel_width >> 1;

    /* Find the width of the glyph.  */
    pitch = glyph -> gx_glyph_height;

    /* Make it byte-aligned.  */
    pitch = (pitch + 1) >> 1;

    glyph_row = (GX_UBYTE *)glyph -> gx_glyph_map;

    if (rotated_map_offset_y)
    {
        glyph_row = glyph_row + ((INT)pitch * rotated_map_offset_y);
    }

    glyph_row += (rotated_map_offset_x >> 1);

    draw_start = (GX_UBYTE *)context -> gx_draw_context_memory;
    draw_start += context -> gx_draw_context_pitch * rotated_top;
    draw_start += rotated_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_rotated_glyph_3bit_draw PORTABLE C */
37			/* 6.1.4 */
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			/* 02-02-2021 Kenneth Maxwell Initial Version 6.1.4 */
73			/* */
74			/**************************************************************************/
75		4285	VOID _gx_display_driver_8bpp_rotated_glyph_3bit_draw(GX_DRAW_CONTEXT context, GX_RECTANGLE draw_area, GX_POINT map_offset, GX_CONST GX_GLYPH glyph)
76			{
77			GX_UBYTE *glyph_row;
78			GX_UBYTE *glyph_data;
79			UINT row;
80		4285	UINT pixel_width = 0;
81			UINT leading_pixel;
82			UINT trailing_pixel;
83			GX_UBYTE text_color;
84			UINT y_height;
85			GX_UBYTE alpha;
86			UINT pitch;
87			UINT index;
88			GX_UBYTE *put;
89			GX_UBYTE *draw_start;
90			GX_VALUE rotated_map_offset_x;
91			GX_VALUE rotated_map_offset_y;
92			GX_VALUE rotated_left;
93			GX_VALUE rotated_top;
94
95		4285	text_color = (GX_UBYTE)(context -> gx_draw_context_brush.gx_brush_line_color + 7);
96		4285	pixel_width = (UINT)(draw_area -> gx_rectangle_bottom - draw_area -> gx_rectangle_top + 1);
97
98		4285	y_height = (UINT)(draw_area -> gx_rectangle_right - draw_area -> gx_rectangle_left + 1);
99
100	✓✓	4285	if (context -> gx_draw_context_display -> gx_display_rotation_angle == GX_SCREEN_ROTATION_CW)
101			{
102		2385	rotated_left = draw_area -> gx_rectangle_top;
103		2385	rotated_top = (GX_VALUE)(context -> gx_draw_context_canvas -> gx_canvas_x_resolution - draw_area -> gx_rectangle_right - 1);
104
105		2385	rotated_map_offset_x = map_offset -> gx_point_y;
106		2385	rotated_map_offset_y = (GX_VALUE)(glyph -> gx_glyph_width - map_offset -> gx_point_x - (GX_VALUE)y_height);
107			}
108			else
109			{
110		1900	rotated_left = (GX_VALUE)(context -> gx_draw_context_canvas -> gx_canvas_display_offset_y - draw_area -> gx_rectangle_bottom - 1);
111		1900	rotated_top = draw_area -> gx_rectangle_left;
112
113		1900	rotated_map_offset_x = (GX_VALUE)(glyph -> gx_glyph_height - map_offset -> gx_point_y - (GX_VALUE)pixel_width);
114		1900	rotated_map_offset_y = map_offset -> gx_point_x;
115			}
116
117		4285	leading_pixel = (rotated_map_offset_x & 1);
118
119		4285	pixel_width -= leading_pixel;
120
121		4285	trailing_pixel = pixel_width & 1;
122
123		4285	pixel_width = pixel_width >> 1;
124
125			/* Find the width of the glyph. */
126		4285	pitch = glyph -> gx_glyph_height;
127
128			/* Make it byte-aligned. */
129		4285	pitch = (pitch + 1) >> 1;
130
131		4285	glyph_row = (GX_UBYTE *)glyph -> gx_glyph_map;
132
133	✓✓	4285	if (rotated_map_offset_y)
134			{
135		37	glyph_row = glyph_row + ((INT)pitch * rotated_map_offset_y);
136			}
137
138		4285	glyph_row += (rotated_map_offset_x >> 1);
139
140		4285	draw_start = (GX_UBYTE *)context -> gx_draw_context_memory;
141		4285	draw_start += context -> gx_draw_context_pitch * rotated_top;
142		4285	draw_start += rotated_left;
143
144	✓✓	51768	for (row = 0; row < y_height; row++)
145			{
146		47483	glyph_data = glyph_row;
147
148		47483	put = draw_start;
149
150	✓✓	47483	if (leading_pixel)
151			{
152		78	alpha = (*glyph_data) & 0x0f;
153
154			/* use 3bit color gradient instead of 4 bit */
155		78	alpha >>= 1;
156
157		78	*put = (GX_UBYTE)(text_color - alpha);
158		78	put++;
159
160		78	glyph_data++;
161			}
162	✓✓	302995	for (index = 0; index < pixel_width; index++)
163			{
164		255512	alpha = (*glyph_data) & 0xf0;
165
166			/* use 3bit color gradient instead of 4 bit */
167		255512	alpha >>= 1;
168
169		255512	*put = (GX_UBYTE)(text_color - (alpha >> 4));
170		255512	put++;
171
172		255512	alpha = (*glyph_data) & 0x0f;
173
174			/* use 3bit color gradient instead of 4 bit */
175		255512	alpha >>= 1;
176
177		255512	*put = (GX_UBYTE)(text_color - alpha);
178		255512	put++;
179		255512	glyph_data++;
180			}
181
182	✓✓	47483	if (trailing_pixel)
183			{
184		40075	alpha = (*glyph_data) & 0xf0;
185
186			/* use 3bit color gradient instead of 4 bit */
187		40075	alpha >>= 1;
188
189		40075	*put = (GX_UBYTE)(text_color - (alpha >> 4));
190		40075	put++;
191			}
192
193		47483	glyph_row += pitch;
194		47483	draw_start += context -> gx_draw_context_pitch;
195			}
196		4285	}
197