Piotr Caban : gdi32: Fix EMR_CREATEPALETTE recording.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: b9b159e5a85a84fca2284c954fb7e7ba210a89c2
URL:    https://gitlab.winehq.org/wine/wine/-/commit/b9b159e5a85a84fca2284c954fb7e7b...

Author: Piotr Caban 
Date:   Fri Apr 21 21:33:01 2023 +0200

gdi32: Fix EMR_CREATEPALETTE recording.

---

dlls/gdi32/emfdc.c | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/dlls/gdi32/emfdc.c b/dlls/gdi32/emfdc.c
index f3ee0e3611c..cc8e78a3cb5 100644
--- a/dlls/gdi32/emfdc.c
+++ b/dlls/gdi32/emfdc.c
@@ -651,27 +651,27 @@ static BOOL emfdc_select_pen( DC_ATTR *dc_attr, HPEN pen )

static DWORD emfdc_create_palette( struct emf *emf, HPALETTE hPal )
 {
+    BYTE data[offsetof( EMRCREATEPALETTE, lgpl.palPalEntry[256] )];
+    EMRCREATEPALETTE *hdr = (EMRCREATEPALETTE *)data;
     WORD i;
-    struct {
-        EMRCREATEPALETTE hdr;
-        PALETTEENTRY entry[255];
-    } pal;

-    memset( &pal, 0, sizeof(pal) );
+    memset( data, 0, sizeof(data) );

-    if (!GetObjectW( hPal, sizeof(pal.hdr.lgpl) + sizeof(pal.entry), &pal.hdr.lgpl ))
+    hdr->lgpl.palVersion = 0x300;
+    hdr->lgpl.palNumEntries = GetPaletteEntries( hPal, 0, 256, hdr->lgpl.palPalEntry );
+    if (!hdr->lgpl.palNumEntries)
         return 0;

-    for (i = 0; i < pal.hdr.lgpl.palNumEntries; i++)
-        pal.hdr.lgpl.palPalEntry[i].peFlags = 0;
+    for (i = 0; i < hdr->lgpl.palNumEntries; i++)
+        hdr->lgpl.palPalEntry[i].peFlags = 0;

-    pal.hdr.emr.iType = EMR_CREATEPALETTE;
-    pal.hdr.emr.nSize = sizeof(pal.hdr) + pal.hdr.lgpl.palNumEntries * sizeof(PALETTEENTRY);
-    pal.hdr.ihPal = emfdc_add_handle( emf, hPal );
+    hdr->emr.iType = EMR_CREATEPALETTE;
+    hdr->emr.nSize = offsetof( EMRCREATEPALETTE, lgpl.palPalEntry[hdr->lgpl.palNumEntries] );
+    hdr->ihPal = emfdc_add_handle( emf, hPal );

-    if (!emfdc_record( emf, &pal.hdr.emr ))
-        pal.hdr.ihPal = 0;
-    return pal.hdr.ihPal;
+    if (!emfdc_record( emf, &hdr->emr ))
+        hdr->ihPal = 0;
+    return hdr->ihPal;
 }

BOOL EMFDC_SelectPalette( DC_ATTR *dc_attr, HPALETTE palette )