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- exported DrawTexture to scripting.

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This uses templates to avoid source duplication of ParseDrawTextureTags. Not tested yet.
This commit is contained in:
Christoph Oelckers 2017-02-04 22:09:49 +01:00
parent a102807737
commit 6dea3eef8e
4 changed files with 91 additions and 4 deletions
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1
src/scripting/vm/vm.h
View file

@ -193,6 +193,7 @@ enum
enum EVMAbortException
{
X_OTHER,
X_READ_NIL,
X_WRITE_NIL,
X_TOO_MANY_TRIES,

4
src/scripting/vm/vmframe.cpp
View file

@ -554,6 +554,10 @@ CVMAbortException::CVMAbortException(EVMAbortException reason, const char *morei
AppendMessage("string format failed.");
break;
case X_OTHER:
// no prepended message.
break;
default:
{
size_t len = strlen(m_Message);

79
src/v_draw.cpp
View file

@ -126,6 +126,7 @@ static int PalFromRGB(uint32 rgb)
return LastPal;
}
void DCanvas::DrawTexture (FTexture *img, double x, double y, int tags_first, ...)
{
va_list tags;
@ -141,6 +142,31 @@ void DCanvas::DrawTexture (FTexture *img, double x, double y, int tags_first, ..
DrawTextureParms(img, parms);
}
static int ListGetInt(VMVa_List &tags);
void DCanvas::DrawTexture(FTexture *img, double x, double y, VMVa_List &args)
{
DrawParms parms;
uint32_t tag = ListGetInt(args);
bool res = ParseDrawTextureTags(img, x, y, tag, args, &parms, false);
if (!res) return;
DrawTextureParms(img, parms);
}
DEFINE_ACTION_FUNCTION(_Screen, DrawTexture)
{
PARAM_PROLOGUE;
PARAM_INT(texid);
PARAM_BOOL(animate);
PARAM_FLOAT(x);
PARAM_FLOAT(y);
FTexture *tex = animate ? TexMan(FSetTextureID(texid)) : TexMan[FSetTextureID(texid)];
VMVa_List args = { param + 4, 0, numparam - 4 };
screen->DrawTexture(tex, x, y, args);
return 0;
}
DEFINE_ACTION_FUNCTION(_Screen, DrawHUDTexture)
{
PARAM_PROLOGUE;
@ -462,7 +488,50 @@ static inline FColormapStyle * ListGetColormapStyle(va_list &tags)
return va_arg(tags, FColormapStyle *);
}
bool DCanvas::ParseDrawTextureTags (FTexture *img, double x, double y, DWORD tag, va_list& tags, DrawParms *parms, bool fortext) const
static void ListEnd(VMVa_List &tags)
{
}
static int ListGetInt(VMVa_List &tags)
{
if (tags.curindex < tags.numargs && tags.args[tags.curindex].Type == REGT_INT)
{
return tags.args[tags.curindex++].i;
}
ThrowAbortException(X_OTHER, "Invalid parameter in draw function, int expected");
return 0;
}
static inline double ListGetDouble(VMVa_List &tags)
{
if (tags.curindex < tags.numargs && tags.args[tags.curindex].Type == REGT_FLOAT)
{
return tags.args[tags.curindex++].f;
}
ThrowAbortException(X_OTHER, "Invalid parameter in draw function, float expected");
return 0;
}
static inline FRemapTable* ListGetTranslation(VMVa_List &tags)
{
ThrowAbortException(X_OTHER, "Invalid tag in draw function");
return nullptr;
}
static inline FSpecialColormap * ListGetSpecialColormap(VMVa_List &tags)
{
ThrowAbortException(X_OTHER, "Invalid tag in draw function");
return nullptr;
}
static inline FColormapStyle * ListGetColormapStyle(VMVa_List &tags)
{
ThrowAbortException(X_OTHER, "Invalid tag in draw function");
return nullptr;
}
template<class T>
bool DCanvas::ParseDrawTextureTags(FTexture *img, double x, double y, DWORD tag, T& tags, DrawParms *parms, bool fortext) const
{
INTBOOL boolval;
int intval;
@ -626,7 +695,7 @@ bool DCanvas::ParseDrawTextureTags (FTexture *img, double x, double y, DWORD tag
parms->cleanmode = DTA_Base;
parms->virtWidth = ListGetDouble(tags);
break;
case DTA_VirtualHeight:
parms->cleanmode = DTA_Base;
parms->virtHeight = ListGetInt(tags);
@ -840,7 +909,7 @@ bool DCanvas::ParseDrawTextureTags (FTexture *img, double x, double y, DWORD tag
}
tag = ListGetInt(tags);
}
va_end (tags);
ListEnd(tags);
if (parms->uclip >= parms->dclip || parms->lclip >= parms->rclip)
{
@ -885,6 +954,10 @@ bool DCanvas::ParseDrawTextureTags (FTexture *img, double x, double y, DWORD tag
}
return true;
}
// 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<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,
double vwidth, double vheight, bool vbottom, bool handleaspect) const

11
src/v_video.h
View file

@ -177,6 +177,12 @@ struct DrawParms
bool virtBottom;
};
struct VMVa_List
{
VMValue *args;
int curindex;
int numargs;
};
//
// VIDEO
//
@ -251,6 +257,7 @@ public:
// 2D Texture drawing
bool SetTextureParms(DrawParms *parms, FTexture *img, double x, double y) const;
void DrawTexture (FTexture *img, double x, double y, int tags, ...);
void DrawTexture(FTexture *img, double x, double y, VMVa_List &);
void FillBorder (FTexture *img); // Fills the border around a 4:3 part of the screen on non-4:3 displays
void VirtualToRealCoords(double &x, double &y, double &w, double &h, double vwidth, double vheight, bool vbottom=false, bool handleaspect=true) const;
@ -275,7 +282,9 @@ protected:
bool ClipBox (int &left, int &top, int &width, int &height, const BYTE *&src, const int srcpitch) const;
void DrawTextureV(FTexture *img, double x, double y, uint32 tag, va_list tags) = delete;
virtual void DrawTextureParms(FTexture *img, DrawParms &parms);
bool ParseDrawTextureTags (FTexture *img, double x, double y, uint32 tag, va_list& tags, DrawParms *parms, bool fortext) const;
template<class T>
bool ParseDrawTextureTags(FTexture *img, double x, double y, DWORD tag, T& tags, DrawParms *parms, bool fortext) const;
DCanvas() {}