gdi32: Avoid signed-unsigned integer comparisons.

dlls/gdi32/bidi.c

@@ -358,7 +358,8 @@ BOOL BIDI_Reorder(
 {
     WORD *chartype;
     BYTE *levels;
-    unsigned i, done, glyph_i;
+    INT i, done;
+    unsigned glyph_i;
     BOOL is_complex;
 
     int maxItems;
@@ -501,7 +502,7 @@ BOOL BIDI_Reorder(
     glyph_i = 0;
     while (done < uCount)
     {
-        unsigned j;
+        INT j;
         classify(lpString + done, chartype, uCount - done);
         /* limit text to first block */
         i = resolveParagraphs(chartype, uCount - done);

dlls/gdi32/dib.c

@@ -305,7 +305,7 @@ static void *get_pixel_ptr( const BITMAPINFO *info, void *bits, int x, int y )
 
 static BOOL build_rle_bitmap( const BITMAPINFO *info, struct gdi_image_bits *bits, HRGN *clip )
 {
-    int i = 0;
+    DWORD i = 0;
     int left, right;
     int x, y, width = info->bmiHeader.biWidth, height = info->bmiHeader.biHeight;
     HRGN run = NULL;

dlls/gdi32/font.c

@@ -1734,7 +1734,7 @@ static DWORD get_glyph_bitmap( HDC hdc, UINT index, UINT flags, UINT aa_flags,
 {
     static const MAT2 identity = { {0,1}, {0,0}, {0,0}, {0,1} };
     UINT indices[3] = {0, 0, 0x20};
-    int i;
+    unsigned int i;
     DWORD ret, size;
     int stride;
 
@@ -1775,7 +1775,7 @@ static DWORD get_glyph_bitmap( HDC hdc, UINT index, UINT flags, UINT aa_flags,
 static RECT get_total_extents( HDC hdc, INT x, INT y, UINT flags, UINT aa_flags,
                                LPCWSTR str, UINT count, const INT *dx )
 {
-    int i;
+    UINT i;
     RECT rect, bounds;
 
     reset_bounds( &bounds );
@@ -1814,7 +1814,8 @@ static void draw_glyph( HDC hdc, INT origin_x, INT origin_y, const GLYPHMETRICS
                         const struct gdi_image_bits *image, const RECT *clip )
 {
     static const BYTE masks[8] = {0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01};
-    UINT x, y, i, count, max_count;
+    UINT i, count, max_count;
+    LONG x, y;
     BYTE *ptr = image->ptr;
     int stride = get_dib_stride( metrics->gmBlackBoxX, 1 );
     POINT *pts;

dlls/gdi32/freetype.c

@@ -5316,7 +5316,7 @@ static BOOL enum_face_charsets(const Family *family, Face *face, struct enum_cha
     ENUMLOGFONTEXW elf;
     NEWTEXTMETRICEXW ntm;
     DWORD type = 0;
-    int i;
+    DWORD i;
 
     GetEnumStructs(face, face->family->FamilyName, &elf, &ntm, &type);
     for(i = 0; i < list->total; i++) {

dlls/gdi32/painting.c

@@ -140,7 +140,8 @@ BOOL nulldrv_PolyBezierTo( PHYSDEV dev, const POINT *points, DWORD count )
 BOOL nulldrv_PolyDraw( PHYSDEV dev, const POINT *points, const BYTE *types, DWORD count )
 {
     POINT *line_pts = NULL, *bzr_pts = NULL, bzr[4];
-    INT i, num_pts, num_bzr_pts, space, size;
+    DWORD i;
+    INT num_pts, num_bzr_pts, space, size;
 
     /* check for valid point types */
     for (i = 0; i < count; i++)