GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: gx_binres_pixelmap_load.c Lines: 22 23 95.7 %
Date: 2024-12-05 08:52:37 Branches: 7 8 87.5 %

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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/**   Binres Loader Management (Binres Loader)                            */
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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_binres_loader.h"
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#include "gx_utility.h"
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/**************************************************************************/
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/*                                                                        */
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/*  FUNCTION                                               RELEASE        */
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/*                                                                        */
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/*    _gx_binres_standalone_resource_seek                 PORTABLE C      */
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/*                                                           6.3.0        */
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/*  AUTHOR                                                                */
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/*                                                                        */
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/*    Ting Zhu, Microsoft Corporation                                     */
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/*                                                                        */
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/*  DESCRIPTION                                                           */
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/*                                                                        */
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/*    This function locates the resource data in the binary data memory.  */
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/*                                                                        */
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/*  INPUT                                                                 */
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/*                                                                        */
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/*    info                                  Binary resource control block */
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/*    res_index                             The index of the resource to  */
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/*                                            be located                  */
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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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/*    None                                                                */
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/*                                                                        */
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/*  CALLED BY                                                             */
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/*                                                                        */
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/*    GUIX Internal 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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/*  10-31-2023     Ting Zhu                 Initial Version 6.3.0         */
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/*                                                                        */
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/**************************************************************************/
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UINT _gx_binres_standalone_resource_seek(GX_BINRES_DATA_INFO *info, UINT res_index)
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{
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USHORT type;
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ULONG  count;
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    GX_BINRES_READ_USHORT(type, info -> gx_binres_root_address + info -> gx_binres_read_offset);
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    info -> gx_binres_read_offset += sizeof(USHORT);
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    if (type != GX_RESOURCE_TYPE_BINRES_STANDALONE)
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    {
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        return GX_INVALID_FORMAT;
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    }
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    /* Skip 2 bytes version.  */
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    info -> gx_binres_read_offset += sizeof(USHORT);
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    GX_BINRES_READ_ULONG(count, info -> gx_binres_root_address + info -> gx_binres_read_offset);
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    info -> gx_binres_read_offset += sizeof(ULONG);
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    if ((USHORT)res_index >= count)
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    {
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        return GX_NOT_FOUND;
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    }
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    if (count > 1)
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    {
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        GX_BINRES_READ_ULONG(info -> gx_binres_read_offset, info -> gx_binres_root_address + info -> gx_binres_read_offset + sizeof(ULONG) * res_index);
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    }
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    return GX_SUCCESS;
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}
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/**************************************************************************/
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/*                                                                        */
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/*  FUNCTION                                               RELEASE        */
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/*                                                                        */
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/*    _gx_binres_pixelmap_load                            PORTABLE C      */
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/*                                                           6.3.0        */
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/*  AUTHOR                                                                */
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/*                                                                        */
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/*    Ting Zhu, Microsoft Corporation                                     */
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/*                                                                        */
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/*  DESCRIPTION                                                           */
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/*                                                                        */
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/*    This service loads a pixelmap from a resource data memory.          */
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/*                                                                        */
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/*  INPUT                                                                 */
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/*                                                                        */
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/*    root_address                          Pointer to the binary data    */
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/*                                            memory                      */
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/*    map_index                             Resource index of the pixelmap*/
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/*                                            to be loaded                */
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/*    pixelmap                              Pointer to the returned       */
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/*                                            pixelmap                    */
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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_binres_standalone_resource_seek  Locate the resource data       */
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/*    _gx_binres_one_pixelmap_load         Load one pixelmap              */
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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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/*  10-31-2023     Ting Zhu                 Initial Version 6.3.0         */
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/*                                                                        */
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/**************************************************************************/
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UINT _gx_binres_pixelmap_load(GX_UBYTE *root_address, UINT map_index, GX_PIXELMAP *pixelmap)
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{
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UINT                status = GX_SUCCESS;
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GX_BINRES_DATA_INFO info;
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    /* file format
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     +--------+
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     |        | <-- represents one bytes
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     +--------+
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     |+========+
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     |        | <-- represents a variable number of bytes
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     |+========+
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     |+--------+--------+--------+--------+
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     |    magic number  | resource count  |
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     |+--------+--------+--------+--------+
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     |+--------+--------+--------+--------+
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     |         resource offset            |
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     |+--------+--------+--------+--------+
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     |+--------+--------+--------+--------+
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     |              ...                   |
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     |+--------+--------+--------+--------+
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     |+===================================+
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     |         resource data              |
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     |+===================================+
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     */
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    memset(&info, 0, sizeof(GX_BINRES_DATA_INFO));
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    info.gx_binres_root_address = (GX_UBYTE *)root_address;
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    info.gx_binres_buffer = (GX_UBYTE *)pixelmap;
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    info.gx_binres_buffer_size = sizeof(GX_PIXELMAP);
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    status = _gx_binres_standalone_resource_seek(&info, map_index);
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    if (status == GX_SUCCESS)
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    {
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        status = _gx_binres_one_pixelmap_load(&info, GX_NULL, GX_NULL);
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    }
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    return status;
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}
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