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- wrap the va_list that gets passed around by the Draw functions into a struct so that the templates can use reliable, identical semantics for both this and the VM's arg list.

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This commit is contained in:
Christoph Oelckers 2017-02-05 21:54:09 +01:00
parent a4dbbf6969
commit d90f2ba1fa
3 changed files with 25 additions and 20 deletions
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28
src/v_draw.cpp
View file

@ -129,12 +129,12 @@ static int PalFromRGB(uint32 rgb)
void DCanvas::DrawTexture (FTexture *img, double x, double y, int tags_first, ...)
{
va_list tags;
va_start(tags, tags_first);
Va_List tags;
va_start(tags.list, tags_first);
DrawParms parms;
bool res = ParseDrawTextureTags(img, x, y, tags_first, tags, &parms, false);
va_end(tags);
va_end(tags.list);
if (!res)
{
return;
@ -457,30 +457,30 @@ bool DCanvas::SetTextureParms(DrawParms *parms, FTexture *img, double xx, double
return false;
}
static void ListEnd(va_list &tags)
static void ListEnd(Va_List &tags)
{
va_end(tags);
va_end(tags.list);
}
static int ListGetInt(va_list &tags)
static int ListGetInt(Va_List &tags)
{
return va_arg(tags, int);
return va_arg(tags.list, int);
}
static inline double ListGetDouble(va_list &tags)
static inline double ListGetDouble(Va_List &tags)
{
return va_arg(tags, double);
return va_arg(tags.list, double);
}
// These two options are only being used by the D3D version of the HUD weapon drawer, they serve no purpose anywhere else.
static inline FSpecialColormap * ListGetSpecialColormap(va_list &tags)
static inline FSpecialColormap * ListGetSpecialColormap(Va_List &tags)
{
return va_arg(tags, FSpecialColormap *);
return va_arg(tags.list, FSpecialColormap *);
}
static inline FColormapStyle * ListGetColormapStyle(va_list &tags)
static inline FColormapStyle * ListGetColormapStyle(Va_List &tags)
{
return va_arg(tags, FColormapStyle *);
return va_arg(tags.list, FColormapStyle *);
}
static void ListEnd(VMVa_List &tags)
@ -946,7 +946,7 @@ bool DCanvas::ParseDrawTextureTags(FTexture *img, double x, double y, DWORD tag,
}
// explicitly instantiate both versions for v_text.cpp.
template bool DCanvas::ParseDrawTextureTags<va_list>(FTexture *img, double x, double y, DWORD tag, va_list& tags, DrawParms *parms, bool fortext) const;
template bool DCanvas::ParseDrawTextureTags<Va_List>(FTexture *img, double x, double y, DWORD tag, Va_List& tags, DrawParms *parms, bool fortext) const;
template bool DCanvas::ParseDrawTextureTags<VMVa_List>(FTexture *img, double x, double y, DWORD tag, VMVa_List& tags, DrawParms *parms, bool fortext) const;
void DCanvas::VirtualToRealCoords(double &x, double &y, double &w, double &h,

12
src/v_text.cpp
View file

@ -71,10 +71,10 @@ void DCanvas::DrawChar (FFont *font, int normalcolor, double x, double y, int ch
if (NULL != (pic = font->GetChar (character, &dummy)))
{
DrawParms parms;
va_list tags;
va_start(tags, tag_first);
Va_List tags;
va_start(tags.list, tag_first);
bool res = ParseDrawTextureTags(pic, x, y, tag_first, tags, &parms, false);
va_end(tags);
va_end(tags.list);
if (!res)
{
return;
@ -197,15 +197,15 @@ void DCanvas::DrawTextCommon(FFont *font, int normalcolor, double x, double y, c
void DCanvas::DrawText(FFont *font, int normalcolor, double x, double y, const char *string, int tag_first, ...)
{
va_list tags;
Va_List tags;
DrawParms parms;
if (font == NULL || string == NULL)
return;
va_start(tags, tag_first);
va_start(tags.list, tag_first);
bool res = ParseDrawTextureTags(nullptr, 0, 0, tag_first, tags, &parms, true);
va_end(tags);
va_end(tags.list);
if (!res)
{
return;

5
src/v_video.h
View file

@ -177,6 +177,11 @@ struct DrawParms
bool virtBottom;
};
struct Va_List
{
va_list list;
};
struct VMVa_List
{
VMValue *args;