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      *FileName;
  49     UINTN       PixelSize;
  50 } BUILTIN_ICON;
  51
  52 BUILTIN_ICON BuiltinIconTable[BUILTIN_ICON_COUNT] = {
  53    { NULL, L"func_about.icns", 48 },
  54    { NULL, L"func_reset.icns", 48 },
  55    { NULL, L"func_shutdown.icns", 48 },
  56    { NULL, L"func_exit.icns", 48 },
  57    { NULL, L"tool_shell.icns", 48 },
  58    { NULL, L"tool_part.icns", 48 },
  59    { NULL, L"tool_rescue.icns", 48 },
  60    { NULL, L"vol_internal.icns", 32 },
  61    { NULL, L"vol_external.icns", 32 },
  62    { NULL, L"vol_optical.icns", 32 },
  63 };
  64
  65 EG_IMAGE * BuiltinIcon(IN UINTN Id)
  66 {
  67     CHAR16 FileName[256];
  68
  69     if (Id >= BUILTIN_ICON_COUNT)
  70         return NULL;
  71
  72     if (BuiltinIconTable[Id].Image == NULL) {
  73         SPrint(FileName, 255, L"%s\\%s", GlobalConfig.IconsDir ? GlobalConfig.IconsDir : DEFAULT_ICONS_DIR,
  74                BuiltinIconTable[Id].FileName);
  75         BuiltinIconTable[Id].Image = LoadIcnsFallback(SelfDir, FileName, BuiltinIconTable[Id].PixelSize);
  76     } // if
  77
  78     return BuiltinIconTable[Id].Image;
  79 }
  80
  81 //
  82 // Load an icon for an operating system
  83 //
  84
  85 // Load an OS icon from among the comma-delimited list provided in OSIconName.
  86 EG_IMAGE * LoadOSIcon(IN CHAR16 *OSIconName OPTIONAL, IN CHAR16 *FallbackIconName, BOOLEAN BootLogo)
  87 {
  88     EG_IMAGE        *Image;
  89     CHAR16          *CutoutName;
  90     CHAR16          FileName[256];
  91     UINTN           Index = 0;
  92
  93     if (GlobalConfig.TextOnly)      // skip loading if it's not used anyway
  94         return NULL;
  95
  96     // try the names from OSIconName
  97     while ((CutoutName = FindCommaDelimited(OSIconName, Index++)) != NULL) {
  98        SPrint(FileName, 255, L"%s\\%s_%s.icns", GlobalConfig.IconsDir ? GlobalConfig.IconsDir : DEFAULT_ICONS_DIR,
  99               BootLogo ? L"boot" : L"os", CutoutName);
 100
 101         // try to load it
 102         Image = egLoadIcon(SelfDir, FileName, 128);
 103         if (Image != NULL)
 104             return Image;
 105         FreePool(CutoutName);
 106     } // while
 107
 108     // try the fallback name
 109     SPrint(FileName, 255, L"%s\\%s_%s.icns", GlobalConfig.IconsDir ? GlobalConfig.IconsDir : DEFAULT_ICONS_DIR,
 110            BootLogo ? L"boot" : L"os", FallbackIconName);
 111     Image = egLoadIcon(SelfDir, FileName, 128);
 112     if (Image != NULL)
 113         return Image;
 114
 115     // try the fallback name with os_ instead of boot_
 116     if (BootLogo)
 117         return LoadOSIcon(NULL, FallbackIconName, FALSE);
 118
 119     return DummyImage(128);
 120 } /* EG_IMAGE * LoadOSIcon() */
 121
 122 //
 123 // Load an image from a .icns file
 124 //
 125
 126 EG_IMAGE * LoadIcns(IN EFI_FILE_HANDLE BaseDir, IN CHAR16 *FileName, IN UINTN PixelSize)
 127 {
 128     if (GlobalConfig.TextOnly)      // skip loading if it's not used anyway
 129         return NULL;
 130     return egLoadIcon(BaseDir, FileName, PixelSize);
 131 }
 132
 133 static EG_PIXEL BlackPixel  = { 0x00, 0x00, 0x00, 0 };
 134 //static EG_PIXEL YellowPixel = { 0x00, 0xff, 0xff, 0 };
 135
 136 EG_IMAGE * DummyImage(IN UINTN PixelSize)
 137 {
 138     EG_IMAGE        *Image;
 139     UINTN           x, y, LineOffset;
 140     CHAR8           *Ptr, *YPtr;
 141
 142     Image = egCreateFilledImage(PixelSize, PixelSize, TRUE, &BlackPixel);
 143
 144     LineOffset = PixelSize * 4;
 145
 146     YPtr = (CHAR8 *)Image->PixelData + ((PixelSize - 32) >> 1) * (LineOffset + 4);
 147     for (y = 0; y < 32; y++) {
 148         Ptr = YPtr;
 149         for (x = 0; x < 32; x++) {
 150             if (((x + y) % 12) < 6) {
 151                 *Ptr++ = 0;
 152                 *Ptr++ = 0;
 153                 *Ptr++ = 0;
 154             } else {
 155                 *Ptr++ = 0;
 156                 *Ptr++ = 255;
 157                 *Ptr++ = 255;
 158             }
 159             *Ptr++ = 144;
 160         }
 161         YPtr += LineOffset;
 162     }
 163
 164     return Image;
 165 }
 166
 167 EG_IMAGE * LoadIcnsFallback(IN EFI_FILE_HANDLE BaseDir, IN CHAR16 *FileName, IN UINTN PixelSize)
 168 {
 169     EG_IMAGE *Image;
 170     if (GlobalConfig.TextOnly)      // skip loading if it's not used anyway
 171         return NULL;
 172
 173     Image = LoadIcns(BaseDir, FileName, PixelSize);
 174     if (Image == NULL) {
 175         Image = DummyImage(PixelSize);
 176     }
 177     return Image;
 178 }