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- exported DrawTexture to scripting.
This uses templates to avoid source duplication of ParseDrawTextureTags. Not tested yet.
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parent
a102807737
commit
6dea3eef8e
4 changed files with 91 additions and 4 deletions
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@ -193,6 +193,7 @@ enum
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enum EVMAbortException
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{
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X_OTHER,
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X_READ_NIL,
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X_WRITE_NIL,
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X_TOO_MANY_TRIES,
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@ -554,6 +554,10 @@ CVMAbortException::CVMAbortException(EVMAbortException reason, const char *morei
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AppendMessage("string format failed.");
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break;
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case X_OTHER:
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// no prepended message.
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break;
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default:
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{
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size_t len = strlen(m_Message);
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@ -126,6 +126,7 @@ static int PalFromRGB(uint32 rgb)
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return LastPal;
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}
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void DCanvas::DrawTexture (FTexture *img, double x, double y, int tags_first, ...)
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{
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va_list tags;
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@ -141,6 +142,31 @@ void DCanvas::DrawTexture (FTexture *img, double x, double y, int tags_first, ..
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DrawTextureParms(img, parms);
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}
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static int ListGetInt(VMVa_List &tags);
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void DCanvas::DrawTexture(FTexture *img, double x, double y, VMVa_List &args)
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{
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DrawParms parms;
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uint32_t tag = ListGetInt(args);
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bool res = ParseDrawTextureTags(img, x, y, tag, args, &parms, false);
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if (!res) return;
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DrawTextureParms(img, parms);
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}
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DEFINE_ACTION_FUNCTION(_Screen, DrawTexture)
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{
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PARAM_PROLOGUE;
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PARAM_INT(texid);
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PARAM_BOOL(animate);
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PARAM_FLOAT(x);
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PARAM_FLOAT(y);
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FTexture *tex = animate ? TexMan(FSetTextureID(texid)) : TexMan[FSetTextureID(texid)];
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VMVa_List args = { param + 4, 0, numparam - 4 };
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screen->DrawTexture(tex, x, y, args);
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return 0;
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}
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DEFINE_ACTION_FUNCTION(_Screen, DrawHUDTexture)
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{
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PARAM_PROLOGUE;
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@ -462,7 +488,50 @@ static inline FColormapStyle * ListGetColormapStyle(va_list &tags)
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return va_arg(tags, FColormapStyle *);
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}
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bool DCanvas::ParseDrawTextureTags (FTexture *img, double x, double y, DWORD tag, va_list& tags, DrawParms *parms, bool fortext) const
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static void ListEnd(VMVa_List &tags)
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{
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}
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static int ListGetInt(VMVa_List &tags)
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{
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if (tags.curindex < tags.numargs && tags.args[tags.curindex].Type == REGT_INT)
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{
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return tags.args[tags.curindex++].i;
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}
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ThrowAbortException(X_OTHER, "Invalid parameter in draw function, int expected");
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return 0;
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}
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static inline double ListGetDouble(VMVa_List &tags)
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{
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if (tags.curindex < tags.numargs && tags.args[tags.curindex].Type == REGT_FLOAT)
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{
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return tags.args[tags.curindex++].f;
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}
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ThrowAbortException(X_OTHER, "Invalid parameter in draw function, float expected");
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return 0;
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}
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static inline FRemapTable* ListGetTranslation(VMVa_List &tags)
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{
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ThrowAbortException(X_OTHER, "Invalid tag in draw function");
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return nullptr;
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}
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static inline FSpecialColormap * ListGetSpecialColormap(VMVa_List &tags)
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{
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ThrowAbortException(X_OTHER, "Invalid tag in draw function");
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return nullptr;
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}
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static inline FColormapStyle * ListGetColormapStyle(VMVa_List &tags)
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{
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ThrowAbortException(X_OTHER, "Invalid tag in draw function");
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return nullptr;
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}
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template<class T>
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bool DCanvas::ParseDrawTextureTags(FTexture *img, double x, double y, DWORD tag, T& tags, DrawParms *parms, bool fortext) const
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{
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INTBOOL boolval;
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int intval;
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@ -840,7 +909,7 @@ bool DCanvas::ParseDrawTextureTags (FTexture *img, double x, double y, DWORD tag
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}
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tag = ListGetInt(tags);
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}
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va_end (tags);
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ListEnd(tags);
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if (parms->uclip >= parms->dclip || parms->lclip >= parms->rclip)
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{
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@ -885,6 +954,10 @@ bool DCanvas::ParseDrawTextureTags (FTexture *img, double x, double y, DWORD tag
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}
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return true;
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}
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// explicitly instantiate both versions for v_text.cpp.
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template bool DCanvas::ParseDrawTextureTags<va_list>(FTexture *img, double x, double y, DWORD tag, va_list& tags, DrawParms *parms, bool fortext) const;
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template bool DCanvas::ParseDrawTextureTags<VMVa_List>(FTexture *img, double x, double y, DWORD tag, VMVa_List& tags, DrawParms *parms, bool fortext) const;
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void DCanvas::VirtualToRealCoords(double &x, double &y, double &w, double &h,
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double vwidth, double vheight, bool vbottom, bool handleaspect) const
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@ -177,6 +177,12 @@ struct DrawParms
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bool virtBottom;
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};
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struct VMVa_List
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{
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VMValue *args;
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int curindex;
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int numargs;
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};
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//
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// VIDEO
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//
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@ -251,6 +257,7 @@ public:
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// 2D Texture drawing
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bool SetTextureParms(DrawParms *parms, FTexture *img, double x, double y) const;
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void DrawTexture (FTexture *img, double x, double y, int tags, ...);
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void DrawTexture(FTexture *img, double x, double y, VMVa_List &);
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void FillBorder (FTexture *img); // Fills the border around a 4:3 part of the screen on non-4:3 displays
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void VirtualToRealCoords(double &x, double &y, double &w, double &h, double vwidth, double vheight, bool vbottom=false, bool handleaspect=true) const;
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@ -275,7 +282,9 @@ protected:
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bool ClipBox (int &left, int &top, int &width, int &height, const BYTE *&src, const int srcpitch) const;
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void DrawTextureV(FTexture *img, double x, double y, uint32 tag, va_list tags) = delete;
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virtual void DrawTextureParms(FTexture *img, DrawParms &parms);
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bool ParseDrawTextureTags (FTexture *img, double x, double y, uint32 tag, va_list& tags, DrawParms *parms, bool fortext) const;
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template<class T>
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bool ParseDrawTextureTags(FTexture *img, double x, double y, DWORD tag, T& tags, DrawParms *parms, bool fortext) const;
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DCanvas() {}
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