GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: gxe_system_string_width_get.c Lines: 27 27 100.0 %
Date: 2024-12-05 08:52:37 Branches: 38 38 100.0 %

Line Branch Exec Source
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/***************************************************************************
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 * Copyright (c) 2024 Microsoft Corporation
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 *
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 * This program and the accompanying materials are made available under the
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 * terms of the MIT License which is available at
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 * https://opensource.org/licenses/MIT.
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 *
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 * SPDX-License-Identifier: MIT
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 **************************************************************************/
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/**************************************************************************/
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/**************************************************************************/
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/**                                                                       */
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/** GUIX Component                                                        */
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/**                                                                       */
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/**   System Management (System)                                          */
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/**                                                                       */
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/**************************************************************************/
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#define GX_SOURCE_CODE
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/* Include necessary system files.  */
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#include "gx_api.h"
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#include "gx_system.h"
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#include "gx_utility.h"
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/* Bring in externs for caller checking code.  */
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GX_CALLER_CHECKING_EXTERNS
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/**************************************************************************/
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/*                                                                        */
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/*  FUNCTION                                               RELEASE        */
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/*                                                                        */
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/*    _gxe_system_string_width_get                        PORTABLE C      */
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/*                                                           6.1          */
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/*  AUTHOR                                                                */
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/*                                                                        */
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/*    Kenneth Maxwell, Microsoft Corporation                              */
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/*                                                                        */
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/*  DESCRIPTION                                                           */
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/*                                                                        */
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/*    This function checks for errors in system string width get call.    */
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/*                                                                        */
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/*  INPUT                                                                 */
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/*                                                                        */
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/*    font                                  Font used by the string       */
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/*    string                                Pointer to string             */
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/*    string_length                         Length of string              */
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/*    return_width                          Destination for width of      */
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/*                                            string                      */
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/*                                                                        */
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/*  OUTPUT                                                                */
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/*                                                                        */
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/*    status                                Completion status             */
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/*                                                                        */
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/*  CALLS                                                                 */
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/*                                                                        */
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/*    _gx_utility_string_length_check       Test string length            */
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/*    _gx_system_string_width_get           Actual system string width    */
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/*                                            get call                    */
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/*                                                                        */
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/*  CALLED BY                                                             */
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/*                                                                        */
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/*    Application Code                                                    */
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/*                                                                        */
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/*  RELEASE HISTORY                                                       */
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/*                                                                        */
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/*    DATE              NAME                      DESCRIPTION             */
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/*                                                                        */
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/*  05-19-2020     Kenneth Maxwell          Initial Version 6.0           */
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/*  09-30-2020     Kenneth Maxwell          Modified comment(s),          */
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/*                                            resulting in version 6.1    */
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/*                                                                        */
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/**************************************************************************/
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#if defined(GX_ENABLE_DEPRECATED_STRING_API)
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UINT  _gxe_system_string_width_get(GX_CONST GX_FONT *font, GX_CONST GX_CHAR *string, INT string_length, GX_VALUE *return_width)
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{
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UINT status;
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UINT length;
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    /* Check for invalid caller.  */
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    GX_INIT_AND_THREADS_CALLER_CHECKING
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    /* Check for invalid pointer.  */
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    if ((font == GX_NULL) || (string == GX_NULL) || (return_width == GX_NULL))
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    {
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        return(GX_PTR_ERROR);
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    }
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    /* Check for invalid font.  */
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    if (font -> gx_font_glyphs.gx_font_normal_glyphs == GX_NULL)
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    {
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        return(GX_INVALID_FONT);
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    }
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    if(string_length > 0)
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    {
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        /* Calculate input string length. */
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        status = _gx_utility_string_length_check(string, &length, GX_MAX_STRING_LENGTH);
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        if (status != GX_SUCCESS)
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        {
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            return status;
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        }
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        /* Check for invalid string length.  */
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        if (string_length > (INT)length)
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        {
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            return(GX_INVALID_STRING_LENGTH);
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        }
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    }
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    /* Call actual system string width get.  */
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    status = _gx_system_string_width_get(font, string, string_length, return_width);
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    /* Return status.  */
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    return(status);
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}
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#endif
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/**************************************************************************/
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/*                                                                        */
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/*  FUNCTION                                               RELEASE        */
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/*                                                                        */
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/*    _gx_system_string_width_get_ext                     PORTABLE C      */
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/*                                                           6.1          */
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/*  AUTHOR                                                                */
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/*                                                                        */
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/*    Kenneth Maxwell, Microsoft Corporation                              */
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/*                                                                        */
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/*  DESCRIPTION                                                           */
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/*                                                                        */
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/*    This function checks for errors in system string width get call.    */
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/*                                                                        */
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/*  INPUT                                                                 */
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/*                                                                        */
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/*    font                                  Font used by the string       */
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/*    string                                Pointer to string             */
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/*    return_width                          Destination for width of      */
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/*                                            string                      */
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/*                                                                        */
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/*  OUTPUT                                                                */
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/*                                                                        */
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/*    status                                Completion status             */
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/*                                                                        */
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/*  CALLS                                                                 */
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/*                                                                        */
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/*    _gx_utility_string_length_check       Test string length            */
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/*    _gx_system_string_width_get_ext       Actual system string width    */
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/*                                            get exe call                */
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/*                                                                        */
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/*  CALLED BY                                                             */
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/*                                                                        */
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/*    Application Code                                                    */
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/*                                                                        */
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/*  RELEASE HISTORY                                                       */
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/*                                                                        */
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/*    DATE              NAME                      DESCRIPTION             */
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/*                                                                        */
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/*  05-19-2020     Kenneth Maxwell          Initial Version 6.0           */
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/*  09-30-2020     Kenneth Maxwell          Modified comment(s),          */
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/*                                            resulting in version 6.1    */
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/*                                                                        */
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/**************************************************************************/
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UINT  _gxe_system_string_width_get_ext(GX_CONST GX_FONT *font, GX_CONST GX_STRING *string, GX_VALUE *return_width)
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{
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UINT status;
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UINT length;
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    /* Check for invalid caller.  */
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    GX_INIT_AND_THREADS_CALLER_CHECKING
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    /* Check for invalid pointer.  */
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    if ((font == GX_NULL) || (string == GX_NULL) || (return_width == GX_NULL))
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    {
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        return(GX_PTR_ERROR);
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    }
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    /* Check for invalid font.  */
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    if (font -> gx_font_glyphs.gx_font_normal_glyphs == GX_NULL)
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    {
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        return(GX_INVALID_FONT);
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    }
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    /* Calculate input string length. */
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    status = _gx_utility_string_length_check(string -> gx_string_ptr, &length, string -> gx_string_length);
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    if (status != GX_SUCCESS)
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    {
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        return status;
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    }
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    /* Check for invalid string length.  */
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    if (string -> gx_string_length > length)
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    {
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        return(GX_INVALID_STRING_LENGTH);
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    }
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    /* Call actual system string width get.  */
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    status = _gx_system_string_width_get_ext(font, string, return_width);
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    /* Return status.  */
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    return(status);
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}
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