[v2 PATCH] gdi32: Update metafile world transform immediately in winnt mode

[Alexandre Julliard]

Andrew Eikum <aeikum at codeweavers.com> writes:

> The Chrome browser print function implements their own handling for
> EMR_MODIFYWORLDTRANSFORM which calls ModifyWorldTransform on the HDC
> directly without ever calling PlayEnhMetaFileRecord. In Wine, this
> transformation would get discarded when the callback function returned,
> causing the page to be printed at the wrong scale.
>
> Tests show that the transform is updated immediately during
> PlayEnhMetaFileRecord. In addition, a modified transform persists
> between callbacks until PlayEnhMetaFileRecord is called on a relevant
> type of callback, at which point the transform is reverted before
> playing back the record.
>
> Signed-off-by: Andrew Eikum <aeikum at codeweavers.com>
> ---
>
> v2: Get rid of win9x checks in tests, and reformat test code.
>
>  dlls/gdi32/enhmetafile.c    |  41 ++++++-
>  dlls/gdi32/tests/metafile.c | 253 ++++++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 289 insertions(+), 5 deletions(-)

This breaks the tests:

../../../tools/runtest -q -P wine -T ../../.. -M gdiplus.dll -p gdiplus_test.exe.so metafile && touch metafile.ok
wine: Unhandled exception 0xc0000093 in thread a0 at address 0x7e8f10c5 (thread 00a0), starting debugger...
Unhandled exception: floating point underflow in 32-bit code (0x7e8f10c7).
Register dump:
 CS:0023 SS:002b DS:002b ES:002b FS:0063 GS:006b
 EIP:7e8f10c7 ESP:0033f74c EBP:0033f768 EFLAGS:00010202(  R- --  I   - - - )
 EAX:00000001 EBX:7e99b000 ECX:7e99b000 EDX:0033f7a8
 ESI:7e99b000 EDI:0033f7a8
Stack dump:
0x0033f74c:  3f000000 00000000 00000000 3f000000
0x0033f75c:  7e99b000 00140bd0 0033f7a8 0033f7d8
0x0033f76c:  7e92e9f0 0033f7a8 0033f7a8 00140bd0
0x0033f77c:  00000000 3f800000 00000000 002f003e
0x0033f78c:  3f800000 3f800000 00000000 00000000
0x0033f79c:  3f800000 00000000 00000000 3f000000
Backtrace:
=>0 0x7e8f10c7 CombineTransform+0x87() in gdi32 (0x0033f768)
  1 0x7e92e9f0 EMF_Update_MF_Xform+0x6f(hdc=<is not available>, info=<is not available>) [/home/julliard/wine/wine/dlls/gdi32/enhmetafile.c:545] in gdi32 (0x0033f7d8)
  2 0x7e930a4e PlayEnhMetaFileRecord+0x191d(hdc=<is not available>, handletable=<is not available>, mr=<is not available>, handles=<is not available>) [/home/julliard/wine/wine/dlls/gdi32/enhmetafile.c:1276] in gdi32 (0x0033f848)
  3 0x7eca4fc1 GdipPlayMetafileRecord+0x170(metafile=<is not available>, recordType=<is not available>, flags=<is not available>, dataSize=<is not available>, data=<is not available>) [/home/julliard/wine/wine/dlls/gdiplus/metafile.c:1428] in gdiplus (0x0033f8c8)
  4 0x7ed3887f test_gditransform_cb+0x2e(metafile=0x13f420, record_type=EmfRecordTypeGdiComment, flags=0, dataSize=0xc, pStr=") [/home/julliard/wine/wine/dlls/gdiplus/tests/metafile.c:2278] in gdiplus_test (0x0033f928)
  5 0x7ed3881c play_metafile_proc+0x25b(record_type=<couldn't compute location>, flags=<couldn't compute location>, dataSize=<couldn't compute location>, pStr=<couldn't compute location>, userdata=<couldn't compute location>) [/home/julliard/wine/wine/dlls/gdiplus/tests/metafile.c:264] in gdiplus_test (0x0033f988)
  6 0x7eca3495 enum_metafile_proc+0x64(hDC=<is not available>, lpHTable=<is not available>, lpEMFR=<is not available>, nObj=<is not available>, lpData=<is not available>) [/home/julliard/wine/wine/dlls/gdiplus/metafile.c:1841] in gdiplus (0x0033f9e8)
  7 0x7e931af8 EnumEnhMetaFile+0x497() in gdi32 (0x0033faf8)
  8 0x7eca5e56 GdipEnumerateMetafileSrcRectDestPoints+0x505() in gdiplus (0x0033fba8)
  9 0x7ed39ea4 play_metafile.constprop+0x43() in gdiplus_test (0x0033fc08)
  10 0x7ed43f42 func_metafile+0x2971() [/home/julliard/wine/wine/dlls/gdiplus/tests/metafile.c:2369] in gdiplus_test (0x0033fd48)
  11 0x7eced39d main+0x25c(argc=<is not available>, argv=<is not available>) [/home/julliard/wine/wine/dlls/gdiplus/tests/../../../include/wine/test.h:603] in gdiplus_test (0x0033fdf8)
  12 0x7ed5947b __wine_spec_exe_entry+0x4a(peb=<couldn't compute location>) [/home/julliard/wine/wine/dlls/winecrt0/exe_entry.c:36] in gdiplus_test (0x0033fe38)
  13 0x7b45e85c call_process_entry+0xb() in kernel32 (0x0033fe58)
  14 0x7b45f799 start_process+0x68(entry=<couldn't compute location>) [/home/julliard/wine/wine/dlls/kernel32/process.c:1116] in kernel32 (0x0033fe98)
  15 0x7bc7ea9c call_thread_func_wrapper+0xb() in ntdll (0x0033feb8)
  16 0x7bc81a59 call_thread_func+0xa8(entry=0x7b45f730, arg=0x7ed59430, frame=0x33ffc8) [/home/julliard/wine/wine/dlls/ntdll/signal_i386.c:2912] in ntdll (0x0033ffa8)
  17 0x7bc7ea7a call_thread_entry_point+0x11() in ntdll (0x0033ffc8)
  18 0x7bc53d43 start_process+0x12(arg=0xff987f08) [/home/julliard/wine/wine/dlls/ntdll/loader.c:3083] in ntdll (0x0033ffe8)
  19 0xf753b91d __x86.get_pc_thunk.di+0x2a() in libwine.so.1 (0x00000000)
  20 0xf753ba80 wine_switch_to_stack+0x1f(func=0x7bc53d30, arg=0xff987f08, stack=0x340000) [/home/julliard/wine/wine/libs/wine/port.c:77] in libwine.so.1 (0xff987ed8)
  21 0x7bc599fe LdrInitializeThunk+0x22d(kernel_start=<couldn't compute location>, unknown2=<couldn't compute location>, unknown3=<couldn't compute location>, unknown4=<couldn't compute location>) [/home/julliard/wine/wine/dlls/ntdll/loader.c:3144] in ntdll (0xff987f28)
  22 0x7b4656ff __wine_kernel_init+0xa4e() [/home/julliard/wine/wine/dlls/kernel32/process.c:1310] in kernel32 (0xff988e18)
  23 0x7bc5a853 __wine_process_init+0x152() [/home/julliard/wine/wine/dlls/ntdll/loader.c:3353] in ntdll (0xff988e88)
  24 0xf7539b83 wine_init+0x2a2(argc=0x3, argv=0xff9893d4, error="", error_size=0x400) [/home/julliard/wine/wine/libs/wine/loader.c:974] in libwine.so.1 (0xff988ed8)
  25 0x7c000b58 main+0x97(argc=<is not available>, argv=<is not available>) [/home/julliard/wine/wine/loader/main.c:258] in <wine-loader> (0xff989328)
  26 0xf7343276 __libc_start_main+0xf5() in libc.so.6 (0x00000000)
0x7e8f10c7 CombineTransform+0x87 in gdi32: flds	0xfffffff0(%ebp)

-- 
Alexandre Julliard
julliard at winehq.org