code.delx.au - refind/blob - refind/icns.c

   1 /*
   2  * refit/icns.c
   3  * Loader for .icns icon files
   4  *
   5  * Copyright (c) 2006-2007 Christoph Pfisterer
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions are
  10  * met:
  11  *
  12  *  * Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  *  * Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the
  18  *    distribution.
  19  *
  20  *  * Neither the name of Christoph Pfisterer nor the names of the
  21  *    contributors may be used to endorse or promote products derived
  22  *    from this software without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  25  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  26  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  27  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  28  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  29  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  30  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  31  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  32  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  33  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  34  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  35  */
  36
  37 #include "global.h"
  38 #include "lib.h"
  39 #include "icns.h"
  40 #include "config.h"
  41
  42 //
  43 // well-known icons
  44 //
  45
  46 typedef struct {
  47     EG_IMAGE    *Image;
  48     CHAR16      *Path;
  49     UINTN       PixelSize;
  50 } BUILTIN_ICON;
  51
  52 BUILTIN_ICON BuiltinIconTable[BUILTIN_ICON_COUNT] = {
  53     { NULL, L"icons\\func_about.icns", 48 },
  54     { NULL, L"icons\\func_reset.icns", 48 },
  55     { NULL, L"icons\\func_shutdown.icns", 48 },
  56     { NULL, L"icons\\tool_shell.icns", 48 },
  57     { NULL, L"icons\\tool_part.icns", 48 },
  58     { NULL, L"icons\\tool_rescue.icns", 48 },
  59     { NULL, L"icons\\vol_internal.icns", 32 },
  60     { NULL, L"icons\\vol_external.icns", 32 },
  61     { NULL, L"icons\\vol_optical.icns", 32 },
  62 };
  63
  64 EG_IMAGE * BuiltinIcon(IN UINTN Id)
  65 {
  66     if (Id >= BUILTIN_ICON_COUNT)
  67         return NULL;
  68
  69     if (BuiltinIconTable[Id].Image == NULL)
  70         BuiltinIconTable[Id].Image = LoadIcnsFallback(SelfDir, BuiltinIconTable[Id].Path, BuiltinIconTable[Id].PixelSize);
  71
  72     return BuiltinIconTable[Id].Image;
  73 }
  74
  75 //
  76 // Load an icon for an operating system
  77 //
  78
  79 // Load an OS icon from among the comma-delimited list provided in OSIconName.
  80 EG_IMAGE * LoadOSIcon(IN CHAR16 *OSIconName OPTIONAL, IN CHAR16 *FallbackIconName, BOOLEAN BootLogo)
  81 {
  82     EG_IMAGE        *Image;
  83     CHAR16          *CutoutName;
  84     CHAR16          FileName[256];
  85     UINTN           Index = 0;
  86
  87     if (GlobalConfig.TextOnly)      // skip loading if it's not used anyway
  88         return NULL;
  89
  90     // try the names from OSIconName
  91     while ((CutoutName = FindCommaDelimited(OSIconName, Index++)) != NULL) {
  92         SPrint(FileName, 255, L"icons\\%s_%s.icns", BootLogo ? L"boot" : L"os", CutoutName);
  93
  94         // try to load it
  95         Image = egLoadIcon(SelfDir, FileName, 128);
  96         if (Image != NULL)
  97             return Image;
  98         FreePool(CutoutName);
  99     } // while
 100
 101     // try the fallback name
 102     SPrint(FileName, 255, L"icons\\%s_%s.icns", BootLogo ? L"boot" : L"os", FallbackIconName);
 103     Image = egLoadIcon(SelfDir, FileName, 128);
 104     if (Image != NULL)
 105         return Image;
 106
 107     // try the fallback name with os_ instead of boot_
 108     if (BootLogo)
 109         return LoadOSIcon(NULL, FallbackIconName, FALSE);
 110
 111     return DummyImage(128);
 112 } /* EG_IMAGE * LoadOSIcon() */
 113
 114 //
 115 // Load an image from a .icns file
 116 //
 117
 118 EG_IMAGE * LoadIcns(IN EFI_FILE_HANDLE BaseDir, IN CHAR16 *FileName, IN UINTN PixelSize)
 119 {
 120     if (GlobalConfig.TextOnly)      // skip loading if it's not used anyway
 121         return NULL;
 122     return egLoadIcon(BaseDir, FileName, PixelSize);
 123 }
 124
 125 static EG_PIXEL BlackPixel  = { 0x00, 0x00, 0x00, 0 };
 126 //static EG_PIXEL YellowPixel = { 0x00, 0xff, 0xff, 0 };
 127
 128 EG_IMAGE * DummyImage(IN UINTN PixelSize)
 129 {
 130     EG_IMAGE        *Image;
 131     UINTN           x, y, LineOffset;
 132     CHAR8           *Ptr, *YPtr;
 133
 134     Image = egCreateFilledImage(PixelSize, PixelSize, TRUE, &BlackPixel);
 135
 136     LineOffset = PixelSize * 4;
 137
 138     YPtr = (CHAR8 *)Image->PixelData + ((PixelSize - 32) >> 1) * (LineOffset + 4);
 139     for (y = 0; y < 32; y++) {
 140         Ptr = YPtr;
 141         for (x = 0; x < 32; x++) {
 142             if (((x + y) % 12) < 6) {
 143                 *Ptr++ = 0;
 144                 *Ptr++ = 0;
 145                 *Ptr++ = 0;
 146             } else {
 147                 *Ptr++ = 0;
 148                 *Ptr++ = 255;
 149                 *Ptr++ = 255;
 150             }
 151             *Ptr++ = 144;
 152         }
 153         YPtr += LineOffset;
 154     }
 155
 156     return Image;
 157 }
 158
 159 EG_IMAGE * LoadIcnsFallback(IN EFI_FILE_HANDLE BaseDir, IN CHAR16 *FileName, IN UINTN PixelSize)
 160 {
 161     EG_IMAGE *Image;
 162     if (GlobalConfig.TextOnly)      // skip loading if it's not used anyway
 163         return NULL;
 164
 165     Image = LoadIcns(BaseDir, FileName, PixelSize);
 166     if (Image == NULL) {
 167         Image = DummyImage(PixelSize);
 168     }
 169     return Image;
 170 }