Deserialization rewrite & more rendering operations (#11)

- Get this file (mostly) rendering:
https://commons.wikimedia.org/wiki/File:Test.pdf
- Adds support for form xobjects
- Rewrite of the deserialization system
  - Now uses typed arena vectors
- Uses pointers and macro-generated functions instead of copying into
field offsets (slightly safer).

Author: someone13574

.github/workflows/clang-format.yaml

@@ -15,7 +15,7 @@ jobs:
           fetch-depth: 2
       - uses: jayllyz/clang-format-action@v1
         with:
-          clang-version: 17
+          clang-version: 21
       - name: Commit changes
         uses: stefanzweifel/git-auto-commit-action@v5
         with:

.gitignore

@@ -4,3 +4,4 @@
 /postscript-spec.pdf
 /*.bmp
 /*.svg
+/test-files/wiki.pdf

.gitmodules

@@ -4,3 +4,6 @@
 [submodule "assets/cmap-resources"]
 	path = assets/cmap-resources
 	url = https://github.com/adobe-type-tools/cmap-resources.git
+[submodule "assets/agl-aglfn"]
+	path = assets/agl-aglfn
+	url = https://github.com/adobe-type-tools/agl-aglfn

.zed/debug.json

@@ -54,7 +54,7 @@
       "args": [],
       "cwd": "$ZED_WORKTREE_ROOT",
       "env": {
-        "DEBUG_TEST_FUNCTION": "test_cff_index_seek_offset_size_2"
+        "DEBUG_TEST_FUNCTION": "test_deserialize_primitive_arrays"
       }
     },
     "program": "$ZED_WORKTREE_ROOT/build/libs/test/pdf-test-main",

assets/agl-aglfn

@@ -0,0 +1,148 @@
+A,65
+AE,225
+B,66
+D,68
+E,69
+F,70
+G,71
+H,72
+I,73
+J,74
+K,75
+L,76
+Lslash,232
+M,77
+N,78
+O,79
+OE,234
+Oslash,233
+P,80
+Q,81
+R,82
+S,83
+T,84
+U,85
+V,86
+W,87
+X,88
+Y,89
+Z,90
+a,97
+acute,194
+ae,241
+ampersand,38
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+backslash,92
+bar,124
+braceleft,123
+braceright,125
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+colon,58
+comma,44
+currency,168
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+dagger,178
+daggerdbl,179
+dieresis,200
+dollar,36
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+endash,177
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+five,53
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+florin,166
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+fraction,164
+g,103
+germandbls,251
+grave,193
+greater,62
+guillemotleft,171
+guillemotright,187
+guilsinglleft,172
+guilsinglright,173
+h,104
+hungarumlaut,205
+hyphen,45
+i,105
+j,106
+k,107
+l,108
+less,60
+lslash,248
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+nine,57
+numbersign,35
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+oe,250
+ogonek,206
+one,49
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+p,112
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+parenleft,40
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+percent,37
+period,46
+periodcentered,180
+perthousand,189
+plus,43
+q,113
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+questiondown,191
+quotedbl,34
+quotedblbase,185
+quotedblleft,170
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+quoteleft,96
+quoteright,39
+quotesinglbase,184
+quotesingle,169
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+two,50
+u,117
+underscore,95
+v,118
+w,119
+x,120
+y,121
+yen,165
+z,122
+zero,48

assets/encodings/AdobeStandard.csv

@@ -0,0 +1,207 @@
+A,65
+AE,174
+Aacute,231
+Acircumflex,229
+Adieresis,128
+Agrave,203
+Aring,129
+Atilde,204
+B,66
+C,67
+Ccedilla,130
+D,68
+E,69
+Eacute,131
+Ecircumflex,230
+Edieresis,232
+Egrave,233
+F,70
+G,71
+H,72
+I,73
+Iacute,234
+Icircumflex,235
+Idieresis,236
+Igrave,237
+J,74
+K,75
+L,76
+M,77
+N,78
+Ntilde,132
+O,79
+OE,206
+Oacute,238
+Ocircumflex,239
+Odieresis,133
+Ograve,241
+Oslash,175
+Otilde,205
+P,80
+Q,81
+R,82
+S,83
+T,84
+U,85
+Uacute,242
+Ucircumflex,243
+Udieresis,134
+Ugrave,244
+V,86
+W,87
+X,88
+Y,89
+Ydieresis,217
+Z,90
+a,97
+aacute,135
+acircumflex,137
+acute,171
+adieresis,138
+ae,190
+agrave,136
+ampersand,38
+aring,140
+asciicircum,94
+asciitilde,126
+asterisk,42
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+atilde,139
+b,98
+backslash,92
+bar,124
+braceleft,123
+braceright,125
+bracketleft,91
+bracketright,93
+breve,249
+bullet,165
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+caron,255
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+cedilla,252
+cent,162
+circumflex,246
+colon,58
+comma,44
+copyright,169
+currency,219
+d,100
+dagger,160
+daggerdbl,224
+degree,161
+dieresis,172
+divide,214
+dollar,36
+dotaccent,250
+dotlessi,245
+e,101
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+ecircumflex,144
+edieresis,145
+egrave,143
+eight,56
+ellipsis,201
+emdash,209
+endash,208
+equal,61
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+f,102
+fi,222
+five,53
+fl,223
+florin,196
+four,52
+fraction,218
+g,103
+germandbls,167
+grave,96
+greater,62
+guillemotleft,199
+guillemotright,200
+guilsinglleft,220
+guilsinglright,221
+h,104
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+zero,48