| 1 | /*************************************************************** |
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| 2 | ** (c)2009 Broadcom Corporation |
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| 3 | ** |
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| 4 | ** This program is the proprietary software of Broadcom Corporation and/or its licensors, |
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| 5 | ** and may only be used, duplicated, modified or distributed pursuant to the terms and |
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| 6 | ** conditions of a separate, written license agreement executed between you and Broadcom |
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| 7 | ** (an "Authorized License"). Except as set forth in an Authorized License, Broadcom grants |
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| 8 | ** no license (express or implied), right to use, or waiver of any kind with respect to the |
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| 9 | ** Software, and Broadcom expressly reserves all rights in and to the Software and all |
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| 10 | ** intellectual property rights therein. IF YOU HAVE NO AUTHORIZED LICENSE, THEN YOU |
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| 11 | ** HAVE NO RIGHT TO USE THIS SOFTWARE IN ANY WAY, AND SHOULD IMMEDIATELY |
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| 12 | ** NOTIFY BROADCOM AND DISCONTINUE ALL USE OF THE SOFTWARE. |
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| 13 | ** |
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| 14 | ** Except as expressly set forth in the Authorized License, |
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| 15 | ** |
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| 16 | ** 1. This program, including its structure, sequence and organization, constitutes the valuable trade |
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| 17 | ** secrets of Broadcom, and you shall use all reasonable efforts to protect the confidentiality thereof, |
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| 18 | ** and to use this information only in connection with your use of Broadcom integrated circuit products. |
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| 19 | ** |
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| 20 | ** 2. TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS" |
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| 21 | ** AND WITH ALL FAULTS AND BROADCOM MAKES NO PROMISES, REPRESENTATIONS OR |
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| 22 | ** WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO |
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| 23 | ** THE SOFTWARE. BROADCOM SPECIFICALLY DISCLAIMS ANY AND ALL IMPLIED WARRANTIES |
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| 24 | ** OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, |
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| 25 | ** LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION |
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| 26 | ** OR CORRESPONDENCE TO DESCRIPTION. YOU ASSUME THE ENTIRE RISK ARISING OUT OF |
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| 27 | ** USE OR PERFORMANCE OF THE SOFTWARE. |
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| 28 | ** |
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| 29 | ** 3. TO THE MAXIMUM EXTENT PERMITTED BY LAW, IN NO EVENT SHALL BROADCOM OR ITS |
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| 30 | ** LICENSORS BE LIABLE FOR (i) CONSEQUENTIAL, INCIDENTAL, SPECIAL, INDIRECT, OR |
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| 31 | ** EXEMPLARY DAMAGES WHATSOEVER ARISING OUT OF OR IN ANY WAY RELATING TO YOUR |
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| 32 | ** USE OF OR INABILITY TO USE THE SOFTWARE EVEN IF BROADCOM HAS BEEN ADVISED OF |
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| 33 | ** THE POSSIBILITY OF SUCH DAMAGES; OR (ii) ANY AMOUNT IN EXCESS OF THE AMOUNT |
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| 34 | ** ACTUALLY PAID FOR THE SOFTWARE ITSELF OR U.S. $1, WHICHEVER IS GREATER. THESE |
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| 35 | ** LIMITATIONS SHALL APPLY NOTWITHSTANDING ANY FAILURE OF ESSENTIAL PURPOSE OF |
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| 36 | ** ANY LIMITED REMEDY. |
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| 37 | ** |
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| 38 | ** Created: 8/22/2002 by Jeffrey P. Fisher |
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| 39 | ** |
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| 40 | ** $brcm_Workfile: bgfx_font.c $ |
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| 41 | ** $brcm_Revision: Refsw_7550/3 $ |
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| 42 | ** $brcm_Date: 11/26/09 11:27a $ |
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| 43 | ** |
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| 44 | ** Revision History: |
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| 45 | ** |
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| 46 | ** $brcm_Log: /nexus/lib/softgfx/src/bgfx_font.c $ |
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| 47 | ** |
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| 48 | ** Refsw_7550/3 11/26/09 11:27a kagrawal |
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| 49 | ** SW7550-77: Fixed compile time warning |
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| 50 | ** |
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| 51 | ** Refsw_7550/2 9/25/09 12:54p kagrawal |
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| 52 | ** SW7550-50: Performance optimized gfx from 7003 latest |
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| 53 | ** |
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| 54 | ** Refsw_7550/1 9/7/09 5:04p kagrawal |
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| 55 | ** SW7550-3: Initial check-in for Soft Graphics |
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| 56 | ** |
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| 57 | ****************************************************************/ |
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| 58 | |
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| 59 | /** include files **/ |
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| 60 | #if (BCHP_CHIP != 7003) |
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| 61 | #define BDISPATCH_BYPASS |
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| 62 | #endif |
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| 63 | #include "bgfx.h" |
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| 64 | #undef BDISPATCH_BYPASS |
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| 65 | #if !defined LINUX && !defined B_OS_UCOS_II |
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| 66 | #include "bdispatch.h" |
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| 67 | #endif |
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| 68 | |
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| 69 | BDBG_MODULE(bgfx); |
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| 70 | |
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| 71 | static bgfx_glyph_t *bgfx_init_glyph(bgfx_font_t *font_p, FT_ULong a_char, int glyph_idx); |
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| 72 | |
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| 73 | /* global SGL structure */ |
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| 74 | typedef struct bgfx_t |
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| 75 | { |
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| 76 | #ifdef CONFIG_FREETYPE |
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| 77 | FT_Library ft_library; |
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| 78 | #else |
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| 79 | int tbd; /* fixes warning */ |
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| 80 | #endif |
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| 81 | }bgfx_t; |
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| 82 | |
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| 83 | #ifdef CONFIG_FREETYPE |
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| 84 | static bgfx_t g_bgfx = { NULL }; |
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| 85 | #endif |
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| 86 | |
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| 87 | /****************************************************************} |
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| 88 | * INPUTS: none |
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| 89 | * OUTPUTS: none |
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| 90 | * RETURNS: non-zero on failure |
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| 91 | * FUNCTION: Initialize the SGIL font library |
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| 92 | * |
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| 93 | ****************************************************************/ |
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| 94 | int bgfx_font_init() |
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| 95 | { |
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| 96 | int result = 0; |
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| 97 | |
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| 98 | SGL_TRACE(("font_init\n")); |
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| 99 | #ifdef CONFIG_FREETYPE |
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| 100 | bgfx_lock(); |
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| 101 | { |
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| 102 | FT_Error err; |
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| 103 | err = FT_Init_FreeType( &g_bgfx.ft_library ); |
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| 104 | if (err) |
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| 105 | { |
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| 106 | g_bgfx.ft_library = NULL; |
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| 107 | result = -1; |
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| 108 | SGL_DEBUG(("font_init - FT_Init_FreeType(%d)\n",err)); |
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| 109 | } |
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| 110 | } |
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| 111 | bgfx_unlock(); |
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| 112 | #endif |
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| 113 | SGL_TRACE(("font_init - done\n")); |
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| 114 | return result; |
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| 115 | } |
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| 116 | |
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| 117 | /****************************************************************} |
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| 118 | * INPUTS: none |
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| 119 | * OUTPUTS: none |
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| 120 | * RETURNS: non-zero on failure |
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| 121 | * FUNCTION: release sgl global resources, primarily for handling freetype |
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| 122 | * |
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| 123 | ****************************************************************/ |
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| 124 | void bgfx_font_done() |
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| 125 | { |
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| 126 | SGL_TRACE(("font_done\n")); |
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| 127 | #ifdef CONFIG_FREETYPE |
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| 128 | bgfx_lock(); |
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| 129 | |
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| 130 | if (g_bgfx.ft_library) |
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| 131 | FT_Done_FreeType( g_bgfx.ft_library ); |
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| 132 | g_bgfx.ft_library = NULL; |
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| 133 | bgfx_unlock(); |
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| 134 | #endif |
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| 135 | } |
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| 136 | |
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| 137 | #ifdef CONFIG_FREETYPE |
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| 138 | /**************************************************************** |
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| 139 | * INPUTS: fr_p - font ripper parameters |
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| 140 | * OUTPUTS: none |
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| 141 | * RETURNS: number of glyph entries |
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| 142 | * DESCRIPTION: Get the maximum number of glyph index entries. |
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| 143 | * |
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| 144 | ****************************************************************/ |
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| 145 | |
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| 146 | int get_max_glyph_index(bgfx_font_t *font_p) |
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| 147 | { |
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| 148 | FT_ULong charcode; |
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| 149 | FT_UInt gindex; |
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| 150 | int cnt = 0; |
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| 151 | |
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| 152 | charcode = FT_Get_First_Char( font_p->face, &gindex ); |
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| 153 | while ( gindex != 0 ) |
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| 154 | { |
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| 155 | ++cnt; |
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| 156 | charcode = FT_Get_Next_Char( font_p->face, charcode, &gindex ); |
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| 157 | } |
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| 158 | return cnt; |
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| 159 | } |
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| 160 | |
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| 161 | /**************************************************************** |
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| 162 | * INPUTS: font_p - font definition |
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| 163 | * OUTPUTS: none |
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| 164 | * RETURNS: none-zero on failure |
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| 165 | * FUNCTION: create the charmap. |
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| 166 | * |
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| 167 | ****************************************************************/ |
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| 168 | int bgfx_create_char_map(bgfx_font_t *font_p) |
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| 169 | { |
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| 170 | int i = 0; |
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| 171 | FT_ULong charcode; |
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| 172 | FT_UInt gindex; |
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| 173 | |
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| 174 | font_p->cache_size = get_max_glyph_index(font_p); |
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| 175 | if (font_p->char_map_size <= 0) |
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| 176 | { |
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| 177 | SGL_DEBUG(("bgfx_create_char_map failed, no unicode encoding for this font.\n")); |
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| 178 | return -1; |
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| 179 | } |
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| 180 | font_p->char_map = (bgfx_glyph_t**)SGL_MALLOC(sizeof(bgfx_glyph_t*) * font_p->cache_size ); |
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| 181 | |
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| 182 | if (!font_p->glyph_cache) |
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| 183 | { |
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| 184 | SGL_DEBUG(("bgfx_create_char_map failed, could not allocate memory for char map.\n")); |
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| 185 | return -1; |
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| 186 | } |
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| 187 | |
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| 188 | bgfx_lock(); |
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| 189 | charcode = FT_Get_First_Char( font_p->face, &gindex ); |
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| 190 | while ( gindex != 0 ) |
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| 191 | { |
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| 192 | font_p->char_map[i++] = charcode; |
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| 193 | |
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| 194 | charcode = FT_Get_Next_Char( font_p->face, charcode, &gindex ); |
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| 195 | } |
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| 196 | bgfx_unlock(); |
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| 197 | SGL_TRACE(("bgfx_create_char_map - %d chars.\n",i)); |
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| 198 | |
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| 199 | return 0; |
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| 200 | } |
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| 201 | #endif /* CONFIG_FREETYPE */ |
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| 202 | |
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| 203 | /**************************************************************** |
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| 204 | * INPUTS: font_p - font definition |
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| 205 | * typeface_name - name of the typeface |
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| 206 | * height - font height |
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| 207 | * OUTPUTS: none |
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| 208 | * RETURNS: none-zero on failure |
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| 209 | * FUNCTION: Load the font typeface. |
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| 210 | * |
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| 211 | * The general usage convention in SGIL is to avoid memory allocation |
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| 212 | * in SGIL functions. For example before calling bgfx_new_font a |
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| 213 | * valid font_t structure must be created and passed to bgfx_new_font. |
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| 214 | * The font_t structure is modified but not allocated by bgfx_new_font. |
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| 215 | * A primary exception is that the glyph cache and glyphs are |
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| 216 | * allocated and manage internally. Therefore, it is important to |
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| 217 | * call bgfx_free_font to allow SGIL to perform cleanup on the glyph cache. |
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| 218 | ****************************************************************/ |
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| 219 | int bgfx_new_font(bgfx_font_t *font_p, |
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| 220 | const char *typeface_name, unsigned char height,unsigned long flags) |
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| 221 | { |
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| 222 | SGL_TRACE(("bgfx_new_font - %s:%d,%ld\n",typeface_name,height,flags)); |
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| 223 | #ifdef CONFIG_FREETYPE |
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| 224 | { |
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| 225 | FT_Error err; |
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| 226 | unsigned long i; |
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| 227 | bgfx_glyph_t *glyph; |
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| 228 | |
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| 229 | bgfx_lock(); |
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| 230 | |
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| 231 | err = FT_New_Face( g_bgfx.ft_library, typeface_name,0, &font_p->face ); |
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| 232 | if (err) |
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| 233 | { |
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| 234 | SGL_DEBUG(("bgfx_new_font could not open typeface %s\n",typeface_name)); |
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| 235 | bgfx_unlock(); |
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| 236 | return -1; |
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| 237 | } |
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| 238 | |
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| 239 | err = FT_Select_Charmap( font_p->face, ft_encoding_unicode ); |
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| 240 | #if FREETYPE_MINOR > 0 |
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| 241 | if (err) |
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| 242 | { |
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| 243 | SGL_DEBUG(("bgfx_new_font could not open unicode charmap, default to latin\n")); |
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| 244 | err = FT_Select_Charmap( font_p->face, ft_encoding_latin_1 ); |
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| 245 | } |
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| 246 | #endif |
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| 247 | if (err) |
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| 248 | { |
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| 249 | SGL_DEBUG(("bgfx_new_font could not select charmap for font %s\n",typeface_name)); |
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| 250 | bgfx_unlock(); |
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| 251 | return -1; |
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| 252 | } |
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| 253 | err = FT_Set_Pixel_Sizes( font_p->face, 0, height); |
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| 254 | if (err) |
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| 255 | { |
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| 256 | SGL_DEBUG(("bgfx_new_font could set font height to %d\n",height)); |
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| 257 | FT_Done_Face( font_p->face ); |
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| 258 | bgfx_unlock(); |
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| 259 | return -1; |
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| 260 | } |
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| 261 | if (flags & SGL_MONO) |
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| 262 | font_p->face->generic.data = (void *) (FT_LOAD_DEFAULT | FT_LOAD_MONOCHROME); |
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| 263 | else |
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| 264 | font_p->face->generic.data = (void *) FT_LOAD_DEFAULT; |
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| 265 | font_p->ascender = font_p->face->size->metrics.ascender >> 6; |
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| 266 | font_p->descender = font_p->face->size->metrics.descender >> 6; |
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| 267 | font_p->height = (font_p->face->size->metrics.ascender - |
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| 268 | font_p->face->size->metrics.descender) >> 6; |
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| 269 | font_p->maxadvance = font_p->face->size->metrics.max_advance >> 6; |
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| 270 | |
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| 271 | /* create glyph cache */ |
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| 272 | if (flags & SGL_CACHE_GLYPHS) |
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| 273 | { |
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| 274 | font_p->cache_size = font_p->face->num_glyphs; |
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| 275 | font_p->glyph_cache = (bgfx_glyph_t**)SGL_MALLOC(sizeof(bgfx_glyph_t*) * font_p->cache_size); |
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| 276 | if (font_p->glyph_cache) |
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| 277 | SGL_MEMSET(font_p->glyph_cache,0,sizeof(bgfx_glyph_t*) * font_p->cache_size); |
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| 278 | else |
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| 279 | font_p->cache_size = 0; |
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| 280 | } |
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| 281 | else |
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| 282 | { |
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| 283 | font_p->cache_size = 0; |
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| 284 | font_p->glyph_cache = NULL; |
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| 285 | } |
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| 286 | font_p->format = flags; |
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| 287 | bgfx_unlock(); |
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| 288 | |
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| 289 | if (bgfx_create_char_map(font_p) != 0) |
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| 290 | { |
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| 291 | SGL_DEBUG(("bgfx_new_font could not create charmap\n")); |
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| 292 | FT_Done_Face( font_p->face ); |
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| 293 | return -1; |
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| 294 | } |
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| 295 | |
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| 296 | if (flags & SGL_PRELOAD_GLYPHS) |
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| 297 | { |
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| 298 | for (i = 0; i < font_p->cache_size; ++i) |
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| 299 | glyph = bgfx_init_glyph(font_p,font_p->char_map[i],i); |
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| 300 | } |
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| 301 | } |
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| 302 | return 0; |
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| 303 | #else |
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| 304 | BSTD_UNUSED(font_p); |
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| 305 | return -1; /* must load fonts when there is no freetype support */ |
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| 306 | #endif |
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| 307 | } |
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| 308 | /**************************************************************** |
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| 309 | * INPUTS: font_p - font definition |
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| 310 | * OUTPUTS: none |
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| 311 | * RETURNS: none |
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| 312 | * FUNCTION: Free font typeface. |
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| 313 | * |
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| 314 | ****************************************************************/ |
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| 315 | void bgfx_free_font(bgfx_font_t *font_p) |
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| 316 | { |
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| 317 | if (font_p->glyph_cache[0]->buf) |
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| 318 | free(font_p->glyph_cache[0]->buf); |
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| 319 | if (font_p->glyph_cache[0]) |
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| 320 | free(font_p->glyph_cache[0]); |
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| 321 | if (font_p->char_map) |
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| 322 | free(font_p->char_map); |
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| 323 | if (font_p->glyph_cache) |
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| 324 | free(font_p->glyph_cache); |
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| 325 | #if 0 |
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| 326 | int i; |
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| 327 | for (i = 0; i < font_p->cache_size; ++i) |
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| 328 | { |
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| 329 | bgfx_glyph_t *glyph = font_p->glyph_cache[i]; |
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| 330 | if (glyph) |
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| 331 | { |
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| 332 | SGL_FREE(glyph->buf); |
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| 333 | SGL_FREE(glyph); |
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| 334 | font_p->glyph_cache[i] = NULL; |
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| 335 | } |
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| 336 | } |
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| 337 | SGL_FREE(font_p->glyph_cache); |
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| 338 | #ifdef CONFIG_FREETYPE |
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| 339 | FT_Done_Face (font_p->face); |
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| 340 | #endif |
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| 341 | #endif |
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| 342 | } |
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| 343 | |
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| 344 | /**************************************************************** |
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| 345 | * INPUTS: font_p - font |
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| 346 | * a_char - the character |
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| 347 | * glyph_idx - glyph index |
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| 348 | * OUTPUTS: info - return char info |
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| 349 | * RETURNS: glyph reference |
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| 350 | * FUNCTION: Initialize a glyph data structure (FREETYPE ONLY). |
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| 351 | * |
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| 352 | ****************************************************************/ |
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| 353 | static bgfx_glyph_t *bgfx_init_glyph(bgfx_font_t *font_p, FT_ULong a_char, int glyph_idx) |
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| 354 | { |
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| 355 | #ifdef CONFIG_FREETYPE |
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| 356 | FT_Error err; |
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| 357 | FT_Int ld_flags; |
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| 358 | FT_UInt index; |
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| 359 | bgfx_glyph_t *new_glyph; |
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| 360 | unsigned long nbytes; |
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| 361 | |
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| 362 | SGL_TRACE(("bgfx_init_glyph 0x%08lx\n",a_char)); |
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| 363 | |
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| 364 | bgfx_lock(); |
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| 365 | |
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| 366 | index = FT_Get_Char_Index(font_p->face,a_char); |
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| 367 | if (index == 0) |
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| 368 | { |
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| 369 | SGL_DEBUG(("bgfx_init_glyph could not find char 0x%08lx in FreeType char map\n",a_char)); |
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| 370 | bgfx_unlock(); |
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| 371 | return NULL; |
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| 372 | } |
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| 373 | |
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| 374 | ld_flags = (FT_Int) font_p->face->generic.data; |
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| 375 | ld_flags |= FT_LOAD_RENDER; |
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| 376 | err = FT_Load_Glyph( font_p->face, index, ld_flags ); |
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| 377 | if (err) |
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| 378 | { |
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| 379 | SGL_DEBUG(("bgfx_init_glyph could not load glyph %d\n",index)); |
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| 380 | bgfx_unlock(); |
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| 381 | return NULL; |
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| 382 | } |
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| 383 | |
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| 384 | /* allocate memory for glyph */ |
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| 385 | |
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| 386 | new_glyph = (bgfx_glyph_t*)SGL_MALLOC(sizeof(bgfx_glyph_t)); |
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| 387 | if (!new_glyph) |
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| 388 | { |
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| 389 | SGL_DEBUG(("bgfx_init_glyph could allocate memory for glyph\n")); |
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| 390 | bgfx_unlock(); |
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| 391 | return NULL; |
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| 392 | } |
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| 393 | new_glyph->left = font_p->face->glyph->bitmap_left; |
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| 394 | new_glyph->top = font_p->face->glyph->bitmap_top; |
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| 395 | new_glyph->advance = font_p->face->glyph->advance.x >> 6; |
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| 396 | new_glyph->width = font_p->face->glyph->bitmap.width; |
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| 397 | new_glyph->height = font_p->face->glyph->bitmap.rows; |
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| 398 | new_glyph->pitch = font_p->face->glyph->bitmap.pitch; |
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| 399 | |
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| 400 | nbytes = font_p->face->glyph->bitmap.pitch * font_p->face->glyph->bitmap.rows; |
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| 401 | new_glyph->buf = (unsigned char*)SGL_MALLOC(nbytes); |
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| 402 | |
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| 403 | if (!new_glyph->buf) |
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| 404 | { |
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| 405 | SGL_FREE(new_glyph); |
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| 406 | SGL_DEBUG(("bgfx_init_glyph could allocate memory for glyph\n")); |
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| 407 | bgfx_unlock(); |
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| 408 | return NULL; |
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| 409 | } |
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| 410 | |
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| 411 | /* copy glyph data */ |
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| 412 | SGL_MEMCPY(new_glyph->buf, font_p->face->glyph->bitmap.buffer,nbytes); |
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| 413 | font_p->glyph_cache[glyph_idx] = new_glyph; |
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| 414 | |
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| 415 | bgfx_unlock(); |
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| 416 | return new_glyph; |
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| 417 | #else |
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| 418 | BSTD_UNUSED(font_p); |
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| 419 | BSTD_UNUSED(a_char); |
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| 420 | BSTD_UNUSED(glyph_idx); |
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| 421 | return NULL; |
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| 422 | #endif |
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| 423 | } |
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| 424 | /**************************************************************** |
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| 425 | * INPUTS: font_p - font |
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| 426 | * a_char - char value |
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| 427 | * OUTPUTS: none |
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| 428 | * RETURNS: glyph cache index or -1 on failure |
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| 429 | * FUNCTION: Get a glyph cache index from the char_map. |
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| 430 | * |
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| 431 | ****************************************************************/ |
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| 432 | static inline int bgfx_map_char(bgfx_font_t *font_p, unsigned long a_char) |
|---|
| 433 | { |
|---|
| 434 | register int i; |
|---|
| 435 | for (i = 0; i < font_p->cache_size; ++i) |
|---|
| 436 | { |
|---|
| 437 | if (font_p->char_map[i] == a_char) |
|---|
| 438 | return i; |
|---|
| 439 | } |
|---|
| 440 | return -1; |
|---|
| 441 | } |
|---|
| 442 | /**************************************************************** |
|---|
| 443 | * INPUTS: font_p - font |
|---|
| 444 | * a_char - char value |
|---|
| 445 | * OUTPUTS: info - return char info |
|---|
| 446 | * RETURNS: glyph reference |
|---|
| 447 | * FUNCTION: Get a glyph from the glyph cache or a fresh rendering. |
|---|
| 448 | * |
|---|
| 449 | ****************************************************************/ |
|---|
| 450 | bgfx_glyph_t *bgfx_get_glyph(bgfx_font_t *font_p, unsigned long a_char) |
|---|
| 451 | { |
|---|
| 452 | int cache_index; |
|---|
| 453 | SGL_TRACE(("bgfx_get_glyph 0x%08lx\n",a_char)); |
|---|
| 454 | |
|---|
| 455 | /* Check for glyph in glyph cache */ |
|---|
| 456 | cache_index = bgfx_map_char(font_p,a_char); |
|---|
| 457 | if (cache_index < 0) |
|---|
| 458 | { |
|---|
| 459 | SGL_DEBUG(("bgfx_get_glyph failed 0x%08lx not in font.\n",a_char)); |
|---|
| 460 | return NULL; |
|---|
| 461 | } |
|---|
| 462 | |
|---|
| 463 | SGL_TRACE(("bgfx_get_glyph find char in cache 0x%08lx (%ld)\n",cache_index,cache_index)); |
|---|
| 464 | if (font_p->glyph_cache[cache_index] != NULL) |
|---|
| 465 | { |
|---|
| 466 | SGL_TRACE(("bgfx_get_glyph found char in cache\n")); |
|---|
| 467 | return font_p->glyph_cache[cache_index]; |
|---|
| 468 | } |
|---|
| 469 | return bgfx_init_glyph(font_p,a_char,cache_index); |
|---|
| 470 | } |
|---|
| 471 | /**************************************************************** |
|---|
| 472 | * INPUTS: font_p - font definition |
|---|
| 473 | * str_p - array of single 32-bit unicode characters |
|---|
| 474 | * str_len - number of 32-bit characters in string |
|---|
| 475 | * OUTPUTS: w,h - width and height in pixels of the string |
|---|
| 476 | * RETURNS: none |
|---|
| 477 | * FUNCTION: Caclulate the bound rectangle for the string. |
|---|
| 478 | * |
|---|
| 479 | ****************************************************************/ |
|---|
| 480 | |
|---|
| 481 | void bgfx_string_info(bgfx_font_t *font_p, /* initialized font structure */ |
|---|
| 482 | const unsigned long *str_p, /* array of single 32-bit unicode characters */ |
|---|
| 483 | int str_len, /* number of 32-bit characters in string */ |
|---|
| 484 | int *w, /* width in pixels */ |
|---|
| 485 | int *h /* height in pixels */ |
|---|
| 486 | ) |
|---|
| 487 | { |
|---|
| 488 | unsigned long current; |
|---|
| 489 | int offset; |
|---|
| 490 | bgfx_glyph_t * bgfx_glyph; |
|---|
| 491 | #ifdef CONFIG_FREETYPE |
|---|
| 492 | bgfx_glyph_t info; |
|---|
| 493 | FT_Error err; |
|---|
| 494 | FT_Int ld_flags; |
|---|
| 495 | FT_UInt index; |
|---|
| 496 | #endif |
|---|
| 497 | *w = 0; *h = 0; |
|---|
| 498 | bgfx_glyph = NULL; |
|---|
| 499 | SGL_TRACE(("bgfx_string_info %s\n",str_p)); |
|---|
| 500 | |
|---|
| 501 | for (offset = 0; offset < str_len; offset++) |
|---|
| 502 | { |
|---|
| 503 | current = str_p[offset]; |
|---|
| 504 | SGL_TRACE(("bgfx_string_info (0x%08lx)\n",current)); |
|---|
| 505 | |
|---|
| 506 | /* if using glyph cache use the get glyph rather than render directly to surface buffer */ |
|---|
| 507 | if (font_p->cache_size > 0) |
|---|
| 508 | { |
|---|
| 509 | bgfx_glyph = bgfx_get_glyph(font_p,current); |
|---|
| 510 | } |
|---|
| 511 | #ifdef CONFIG_FREETYPE |
|---|
| 512 | if (!bgfx_glyph) |
|---|
| 513 | { |
|---|
| 514 | bgfx_lock(); |
|---|
| 515 | bgfx_glyph = &info; |
|---|
| 516 | |
|---|
| 517 | index = FT_Get_Char_Index( font_p->face, current ); |
|---|
| 518 | SGL_TRACE(("bgfx_string_info %d\n",index)); |
|---|
| 519 | |
|---|
| 520 | ld_flags = (FT_Int) font_p->face->generic.data; |
|---|
| 521 | ld_flags |= FT_LOAD_RENDER; |
|---|
| 522 | err = FT_Load_Glyph( font_p->face, index, ld_flags ); |
|---|
| 523 | if (err) |
|---|
| 524 | { |
|---|
| 525 | SGL_DEBUG(("bgfx_string_info could not load glyph %p\n",bgfx_glyph)); |
|---|
| 526 | bgfx_unlock(); |
|---|
| 527 | return; |
|---|
| 528 | } |
|---|
| 529 | bgfx_unlock(); |
|---|
| 530 | |
|---|
| 531 | bgfx_glyph->left = font_p->face->glyph->bitmap_left; |
|---|
| 532 | bgfx_glyph->top = font_p->face->glyph->bitmap_top; |
|---|
| 533 | |
|---|
| 534 | bgfx_glyph->advance = font_p->face->glyph->advance.x >> 6; |
|---|
| 535 | bgfx_glyph->width = font_p->face->glyph->bitmap.width; |
|---|
| 536 | |
|---|
| 537 | bgfx_glyph->height = font_p->face->glyph->bitmap.rows; |
|---|
| 538 | |
|---|
| 539 | bgfx_glyph->buf = font_p->face->glyph->bitmap.buffer; |
|---|
| 540 | bgfx_glyph->pitch = font_p->face->glyph->bitmap.pitch; |
|---|
| 541 | } |
|---|
| 542 | #endif |
|---|
| 543 | if (!bgfx_glyph) |
|---|
| 544 | { |
|---|
| 545 | SGL_DEBUG(("bgfx_string_info could not load glyph for char 0x%08lx\n",current)); |
|---|
| 546 | return; |
|---|
| 547 | } |
|---|
| 548 | if (bgfx_glyph->height > *h) |
|---|
| 549 | { |
|---|
| 550 | *h = bgfx_glyph->height; |
|---|
| 551 | } |
|---|
| 552 | *w += bgfx_glyph->advance; |
|---|
| 553 | } |
|---|
| 554 | } |
|---|
| 555 | #if 1 |
|---|
| 556 | /**************************************************************** |
|---|
| 557 | * INPUTS: font_p - font definition |
|---|
| 558 | * file_p - file descriptor |
|---|
| 559 | * OUTPUTS: none |
|---|
| 560 | * RETURNS: none-zero on failure |
|---|
| 561 | * FUNCTION: Load the font typeface from a binary file. |
|---|
| 562 | * |
|---|
| 563 | ****************************************************************/ |
|---|
| 564 | static int bgfx_calc_mem_font(bgfx_font_t *font_p,void *file_p) |
|---|
| 565 | { |
|---|
| 566 | int err,size; |
|---|
| 567 | int i; |
|---|
| 568 | int result = -1; |
|---|
| 569 | |
|---|
| 570 | size = 0; |
|---|
| 571 | size += sizeof(FT_ULong) * font_p->cache_size; |
|---|
| 572 | |
|---|
| 573 | /* Load bitmaps */ |
|---|
| 574 | for (i = 0; i < font_p->cache_size; ++i) |
|---|
| 575 | { |
|---|
| 576 | bgfx_glyph_t glyph; |
|---|
| 577 | |
|---|
| 578 | SGL_IO_CHECK (bgfx_read((void*)&glyph.left,1,sizeof(glyph.left),file_p)); |
|---|
| 579 | SGL_IO_CHECK (bgfx_read((void*)&glyph.top,1,sizeof(glyph.top),file_p)); |
|---|
| 580 | SGL_IO_CHECK (bgfx_read((void*)&glyph.advance,1,sizeof(glyph.advance),file_p)); |
|---|
| 581 | SGL_IO_CHECK (bgfx_read((void*)&glyph.width,1,sizeof(glyph.width),file_p)); |
|---|
| 582 | SGL_IO_CHECK (bgfx_read((void*)&glyph.height,1,sizeof(glyph.height),file_p)); |
|---|
| 583 | SGL_IO_CHECK (bgfx_read((void*)&glyph.pitch,1,sizeof(glyph.pitch),file_p)); |
|---|
| 584 | SGL_TRACE(("bgfx_load_font glyph %ld\n",i)); |
|---|
| 585 | SGL_TRACE(("bgfx_load_font glyph->pitch %d\n",glyph.pitch)); |
|---|
| 586 | SGL_TRACE(("bgfx_load_font glyph->height %d\n",glyph.height)); |
|---|
| 587 | SGL_TRACE(("bgfx_load_font glyph->left %d\n",glyph.left)); |
|---|
| 588 | if ((glyph.pitch * glyph.height) > 0) |
|---|
| 589 | { |
|---|
| 590 | size += glyph.pitch * glyph.height; |
|---|
| 591 | bgfx_set(file_p,bgfx_tell(file_p) + (glyph.pitch * glyph.height), 0); |
|---|
| 592 | } |
|---|
| 593 | } |
|---|
| 594 | result = 0; |
|---|
| 595 | done: |
|---|
| 596 | if (result != 0) |
|---|
| 597 | return -1; |
|---|
| 598 | return size; |
|---|
| 599 | } |
|---|
| 600 | |
|---|
| 601 | /**************************************************************** |
|---|
| 602 | * INPUTS: font_p - font definition |
|---|
| 603 | * file_p - file descriptor |
|---|
| 604 | * OUTPUTS: none |
|---|
| 605 | * RETURNS: none-zero on failure |
|---|
| 606 | * FUNCTION: Load the font typeface from a binary file. |
|---|
| 607 | * |
|---|
| 608 | ****************************************************************/ |
|---|
| 609 | int bgfx_load_font(bgfx_font_t *font_p,void *file_p) |
|---|
| 610 | { |
|---|
| 611 | int result = -1; |
|---|
| 612 | int err; |
|---|
| 613 | unsigned long fsize,pos; |
|---|
| 614 | int i; |
|---|
| 615 | bgfx_glyph_t *glyph_bufs = NULL; |
|---|
| 616 | bgfx_glyph_t *glyph = NULL; |
|---|
| 617 | unsigned char* fbuf = NULL; |
|---|
| 618 | |
|---|
| 619 | /* write font header */ |
|---|
| 620 | SGL_MEMSET(font_p,0,sizeof(bgfx_font_t)); |
|---|
| 621 | SGL_IO_CHECK (bgfx_read((void*)&font_p->ascender,1, sizeof(font_p->ascender),file_p)); |
|---|
| 622 | font_p->ascender = SGL_SWAP_INT(font_p->ascender); |
|---|
| 623 | SGL_IO_CHECK (bgfx_read((void*)&font_p->descender,1, sizeof(font_p->descender),file_p)); |
|---|
| 624 | font_p->descender = SGL_SWAP_INT(font_p->descender); |
|---|
| 625 | SGL_IO_CHECK (bgfx_read((void*)&font_p->height,1, sizeof(font_p->height),file_p)); |
|---|
| 626 | font_p->height = SGL_SWAP_INT(font_p->height); |
|---|
| 627 | SGL_IO_CHECK (bgfx_read((void*)&font_p->maxadvance,1, sizeof(font_p->maxadvance),file_p)); |
|---|
| 628 | font_p->maxadvance = SGL_SWAP_INT(font_p->maxadvance); |
|---|
| 629 | SGL_IO_CHECK (bgfx_read((void*)&font_p->format,1, sizeof(font_p->format),file_p)); |
|---|
| 630 | font_p->format = SGL_SWAP_ULONG(font_p->format); |
|---|
| 631 | SGL_IO_CHECK (bgfx_read((void*)&font_p->cache_size,1, sizeof(font_p->cache_size),file_p)); |
|---|
| 632 | font_p->cache_size = SGL_SWAP_INT(font_p->cache_size); |
|---|
| 633 | |
|---|
| 634 | font_p->glyph_cache = (bgfx_glyph_t**)SGL_MALLOC(sizeof(bgfx_glyph_t*) * font_p->cache_size ); |
|---|
| 635 | |
|---|
| 636 | SGL_MEMSET(font_p->glyph_cache,0,sizeof(bgfx_glyph_t*) * font_p->cache_size); |
|---|
| 637 | |
|---|
| 638 | glyph_bufs = (bgfx_glyph_t*)SGL_MALLOC(sizeof(bgfx_glyph_t) * font_p->cache_size ); |
|---|
| 639 | font_p->char_map = (FT_ULong*)SGL_MALLOC(sizeof(FT_ULong) * font_p->cache_size ); |
|---|
| 640 | |
|---|
| 641 | if (!font_p->char_map || !glyph_bufs || !font_p->glyph_cache) |
|---|
| 642 | goto done; |
|---|
| 643 | |
|---|
| 644 | /* load character map */ |
|---|
| 645 | for (i = 0; i < font_p->cache_size; ++i) |
|---|
| 646 | { |
|---|
| 647 | SGL_IO_CHECK (bgfx_read((void*)&(font_p->char_map[i]),1, sizeof(FT_ULong), file_p )); |
|---|
| 648 | font_p->char_map[i] = SGL_SWAP_ULONG(font_p->char_map[i]); |
|---|
| 649 | } |
|---|
| 650 | |
|---|
| 651 | pos = bgfx_tell(file_p); |
|---|
| 652 | fsize = bgfx_calc_mem_font(font_p,file_p); |
|---|
| 653 | bgfx_set(file_p,pos,0); |
|---|
| 654 | |
|---|
| 655 | fbuf = SGL_MALLOC(fsize); |
|---|
| 656 | if ((fsize <= 0) || !fbuf) |
|---|
| 657 | goto done; |
|---|
| 658 | |
|---|
| 659 | /* Load bitmaps */ |
|---|
| 660 | for (i = 0; i < font_p->cache_size; ++i) |
|---|
| 661 | { |
|---|
| 662 | SGL_MEMSET(glyph_bufs,0,sizeof(bgfx_glyph_t)); |
|---|
| 663 | glyph = glyph_bufs++; |
|---|
| 664 | font_p->glyph_cache[i] = glyph; |
|---|
| 665 | SGL_IO_CHECK (bgfx_read((void*)&glyph->left,1,sizeof(glyph->left),file_p)); |
|---|
| 666 | SGL_IO_CHECK (bgfx_read((void*)&glyph->top,1,sizeof(glyph->top),file_p)); |
|---|
| 667 | SGL_IO_CHECK (bgfx_read((void*)&glyph->advance,1,sizeof(glyph->advance),file_p)); |
|---|
| 668 | SGL_IO_CHECK (bgfx_read((void*)&glyph->width,1,sizeof(glyph->width),file_p)); |
|---|
| 669 | SGL_IO_CHECK (bgfx_read((void*)&glyph->height,1,sizeof(glyph->height),file_p)); |
|---|
| 670 | SGL_IO_CHECK (bgfx_read((void*)&glyph->pitch,1,sizeof(glyph->pitch),file_p)); |
|---|
| 671 | SGL_TRACE(("bgfx_load_font glyph %ld\n",i)); |
|---|
| 672 | SGL_TRACE(("bgfx_load_font glyph->pitch %d\n",glyph->pitch)); |
|---|
| 673 | SGL_TRACE(("bgfx_load_font glyph->height %d\n",glyph->height)); |
|---|
| 674 | SGL_TRACE(("bgfx_load_font glyph->left %d\n",glyph->left)); |
|---|
| 675 | if ((glyph->pitch * glyph->height) > 0) |
|---|
| 676 | { |
|---|
| 677 | //glyph->buf = (char*)SGL_MALLOC((glyph->pitch * glyph->height)); |
|---|
| 678 | glyph->buf = (char*)fbuf; |
|---|
| 679 | SGL_IO_CHECK (bgfx_read(glyph->buf,1, (glyph->pitch * glyph->height),file_p)); |
|---|
| 680 | fbuf += (glyph->pitch * glyph->height); |
|---|
| 681 | } |
|---|
| 682 | SGL_TRACE(("bgfx_load_font glyph->buf %p\n",glyph->buf)); |
|---|
| 683 | } |
|---|
| 684 | result = 0; |
|---|
| 685 | |
|---|
| 686 | done: |
|---|
| 687 | if (result != 0) |
|---|
| 688 | { |
|---|
| 689 | if (font_p->glyph_cache) |
|---|
| 690 | free(font_p->glyph_cache); |
|---|
| 691 | if (font_p->char_map) |
|---|
| 692 | free(font_p->char_map); |
|---|
| 693 | if (glyph_bufs) |
|---|
| 694 | free(glyph_bufs); |
|---|
| 695 | if (fbuf) |
|---|
| 696 | free(fbuf); |
|---|
| 697 | } |
|---|
| 698 | return result; |
|---|
| 699 | } |
|---|
| 700 | #else |
|---|
| 701 | |
|---|
| 702 | /**************************************************************** |
|---|
| 703 | * INPUTS: font_p - font definition |
|---|
| 704 | * file_p - file descriptor |
|---|
| 705 | * OUTPUTS: none |
|---|
| 706 | * RETURNS: none-zero on failure |
|---|
| 707 | * FUNCTION: Load the font typeface from a binary file. |
|---|
| 708 | * |
|---|
| 709 | ****************************************************************/ |
|---|
| 710 | int bgfx_load_font(bgfx_font_t *font_p,void *file_p) |
|---|
| 711 | { |
|---|
| 712 | int result = -1; |
|---|
| 713 | int err; |
|---|
| 714 | unsigned long i; |
|---|
| 715 | bgfx_glyph_t *glyph; |
|---|
| 716 | unsigned int size; |
|---|
| 717 | |
|---|
| 718 | /* write font header */ |
|---|
| 719 | SGL_MEMSET(font_p,0,sizeof(bgfx_font_t)); |
|---|
| 720 | SGL_IO_CHECK (bgfx_read((void*)&font_p->ascender,1, sizeof(font_p->ascender),file_p)); |
|---|
| 721 | font_p->ascender = SGL_SWAP_INT(font_p->ascender); |
|---|
| 722 | SGL_IO_CHECK (bgfx_read((void*)&font_p->descender,1, sizeof(font_p->descender),file_p)); |
|---|
| 723 | font_p->descender = SGL_SWAP_INT(font_p->descender); |
|---|
| 724 | SGL_IO_CHECK (bgfx_read((void*)&font_p->height,1, sizeof(font_p->height),file_p)); |
|---|
| 725 | font_p->height = SGL_SWAP_INT(font_p->height); |
|---|
| 726 | SGL_IO_CHECK (bgfx_read((void*)&font_p->maxadvance,1, sizeof(font_p->maxadvance),file_p)); |
|---|
| 727 | font_p->maxadvance = SGL_SWAP_INT(font_p->maxadvance); |
|---|
| 728 | SGL_IO_CHECK (bgfx_read((void*)&font_p->format,1, sizeof(font_p->format),file_p)); |
|---|
| 729 | font_p->format = SGL_SWAP_ULONG(font_p->format); |
|---|
| 730 | SGL_IO_CHECK (bgfx_read((void*)&font_p->cache_size,1, sizeof(font_p->cache_size),file_p)); |
|---|
| 731 | font_p->cache_size = SGL_SWAP_INT(font_p->cache_size); |
|---|
| 732 | |
|---|
| 733 | font_p->glyph_cache = (bgfx_glyph_t**)SGL_MALLOC(sizeof(bgfx_glyph_t*) * font_p->cache_size ); |
|---|
| 734 | size = sizeof(bgfx_glyph_t*) * font_p->cache_size; |
|---|
| 735 | printf("%s:%d size = %d\n",__FUNCTION__,__LINE__,size); |
|---|
| 736 | |
|---|
| 737 | if (!font_p->glyph_cache) |
|---|
| 738 | goto done; |
|---|
| 739 | |
|---|
| 740 | SGL_MEMSET(font_p->glyph_cache,0,sizeof(bgfx_glyph_t*) * font_p->cache_size); |
|---|
| 741 | |
|---|
| 742 | font_p->char_map = (FT_ULong*)SGL_MALLOC(sizeof(FT_ULong) * font_p->cache_size ); |
|---|
| 743 | size += sizeof(FT_ULong) * font_p->cache_size; |
|---|
| 744 | printf("%s:%d size = %d\n",__FUNCTION__,__LINE__,size); |
|---|
| 745 | |
|---|
| 746 | if (!font_p->char_map) |
|---|
| 747 | goto done; |
|---|
| 748 | |
|---|
| 749 | /* load character map */ |
|---|
| 750 | for (i = 0; i < font_p->cache_size; ++i) |
|---|
| 751 | { |
|---|
| 752 | SGL_IO_CHECK (bgfx_read((void*)&(font_p->char_map[i]),1, sizeof(FT_ULong), file_p )); |
|---|
| 753 | font_p->char_map[i] = SGL_SWAP_ULONG(font_p->char_map[i]); |
|---|
| 754 | } |
|---|
| 755 | |
|---|
| 756 | /* Load bitmaps */ |
|---|
| 757 | for (i = 0; i < font_p->cache_size; ++i) |
|---|
| 758 | { |
|---|
| 759 | glyph = (bgfx_glyph_t*)SGL_MALLOC(sizeof(bgfx_glyph_t)); |
|---|
| 760 | size += sizeof(bgfx_glyph_t); |
|---|
| 761 | printf("%s:%d size = %d\n",__FUNCTION__,__LINE__,size); |
|---|
| 762 | |
|---|
| 763 | if (!glyph) |
|---|
| 764 | goto done; |
|---|
| 765 | |
|---|
| 766 | SGL_MEMSET(glyph,0,sizeof(bgfx_glyph_t)); |
|---|
| 767 | font_p->glyph_cache[i] = glyph; |
|---|
| 768 | |
|---|
| 769 | SGL_IO_CHECK (bgfx_read((void*)&glyph->left,1,sizeof(glyph->left),file_p)); |
|---|
| 770 | SGL_IO_CHECK (bgfx_read((void*)&glyph->top,1,sizeof(glyph->top),file_p)); |
|---|
| 771 | SGL_IO_CHECK (bgfx_read((void*)&glyph->advance,1,sizeof(glyph->advance),file_p)); |
|---|
| 772 | SGL_IO_CHECK (bgfx_read((void*)&glyph->width,1,sizeof(glyph->width),file_p)); |
|---|
| 773 | SGL_IO_CHECK (bgfx_read((void*)&glyph->height,1,sizeof(glyph->height),file_p)); |
|---|
| 774 | SGL_IO_CHECK (bgfx_read((void*)&glyph->pitch,1,sizeof(glyph->pitch),file_p)); |
|---|
| 775 | SGL_TRACE(("bgfx_load_font glyph %ld\n",i)); |
|---|
| 776 | SGL_TRACE(("bgfx_load_font glyph->pitch %d\n",glyph->pitch)); |
|---|
| 777 | SGL_TRACE(("bgfx_load_font glyph->height %d\n",glyph->height)); |
|---|
| 778 | SGL_TRACE(("bgfx_load_font glyph->left %d\n",glyph->left)); |
|---|
| 779 | if ((glyph->pitch * glyph->height) > 0) |
|---|
| 780 | { |
|---|
| 781 | glyph->buf = (char*)SGL_MALLOC((glyph->pitch * glyph->height)); |
|---|
| 782 | size += glyph->pitch * glyph->height; |
|---|
| 783 | printf("%s:%d size = %d(%d,%d)\n",__FUNCTION__,__LINE__,size,glyph->pitch,glyph->height); |
|---|
| 784 | if (!glyph->buf) |
|---|
| 785 | goto done; |
|---|
| 786 | SGL_IO_CHECK (bgfx_read(glyph->buf,1, (glyph->pitch * glyph->height),file_p)); |
|---|
| 787 | } |
|---|
| 788 | SGL_TRACE(("bgfx_load_font glyph->buf %p\n",glyph->buf)); |
|---|
| 789 | } |
|---|
| 790 | result = 0; |
|---|
| 791 | |
|---|
| 792 | done: |
|---|
| 793 | if (result != 0) |
|---|
| 794 | { |
|---|
| 795 | if (font_p->char_map) |
|---|
| 796 | free(font_p->char_map); |
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| 797 | for (i = 0; i < font_p->cache_size; ++i) |
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| 798 | { |
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| 799 | if (font_p->glyph_cache[i]) |
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| 800 | { |
|---|
| 801 | if (font_p->glyph_cache[i]->buf) |
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| 802 | SGL_FREE(font_p->glyph_cache[i]->buf); |
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| 803 | SGL_FREE(font_p->glyph_cache[i]); |
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| 804 | } |
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| 805 | } |
|---|
| 806 | } |
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| 807 | return result; |
|---|
| 808 | } |
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| 809 | |
|---|
| 810 | #endif |
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| 811 | |
|---|