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/*************************************************************************** |
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* Copyright (c) 2024 Microsoft Corporation |
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* Copyright (c) 2026-present Eclipse ThreadX contributors |
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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_font_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 font 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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/* font_index Resource index of the font */ |
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/* to be loaded */ |
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/* buffer Pointer to the buffer to */ |
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/* store the loaded font */ |
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/* buffer_size Size of the buffer. It will */ |
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/* be overwritten with the */ |
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/* required buffer size if the */ |
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/* input buffer size is */ |
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/* insufficient */ |
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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_font_buffer_size_get Get the required font buffer */ |
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/* size */ |
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/* _gx_binres_one_font_load Load one font */ |
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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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/**************************************************************************/ |
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#ifdef GX_BINARY_RESOURCE_SUPPORT |
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UINT _gx_binres_font_load(GX_UBYTE *root_address, UINT font_index, GX_UBYTE *buffer, ULONG *buffer_size) |
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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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UINT required_size; |
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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 *)buffer; |
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info.gx_binres_buffer_size = *buffer_size; |
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status = _gx_binres_standalone_resource_seek(&info, font_index); |
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✓✓ |
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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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status = _gx_binres_font_buffer_size_get(&info, &required_size, GX_TRUE); |
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✗✓ |
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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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✗✓ |
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if (required_size > *buffer_size) |
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{ |
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*buffer_size = required_size; |
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return GX_INVALID_MEMORY_SIZE; |
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} |
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status = _gx_binres_one_font_load(&info, GX_NULL); |
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return status; |
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} |
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#endif |