DeSmuME 0.9.8-gfx3dHack patch

Index: desmume/src/gfx3d.cpp
===================================================================
--- desmume/src/gfx3d.cpp   (revision 4477)
+++ desmume/src/gfx3d.cpp   (working copy)
@@ -2138,6 +2138,16 @@
        std::sort(gfx3d.indexlist.list + opaqueCount, gfx3d.indexlist.list + polycount, gfx3d_ysort_compare);
    }

+   // apply user visibility settings
+   for(int i=0; i<polycount; i++)
+   {
+       POLY &poly = polylist->list[polycount-i-1];
+       int polyRange = polycount; //POLYLIST_SIZE;
+       int minPolyIndex = (int)((double)polyRange * gfx3d.visibilityRangeStart);
+       int maxPolyIndex = (int)((double)polyRange * gfx3d.visibilityRangeEnd);
+       poly.enabled = (i >= minPolyIndex) && (i <= maxPolyIndex);
+   }
+
    //switch to the new lists
    twiddleLists();

Index: desmume/src/gfx3d.h
===================================================================
--- desmume/src/gfx3d.h (revision 4477)
+++ desmume/src/gfx3d.h (working copy)
@@ -141,6 +141,7 @@
    u32 polyAttr, texParam, texPalette; //the hardware rendering params
    u32 viewport;
    float miny, maxy;
+   bool enabled; // user settings

    void setVertIndexes(int a, int b, int c, int d=-1)
    {
@@ -366,6 +367,8 @@
    GFX3D()
        : polylist(0)
        , vertlist(0)
+       , visibilityRangeStart(0.0)
+       , visibilityRangeEnd(1.0)
        , frameCtr(0)
        , frameCtrRaw(0) {
    }
@@ -380,6 +383,9 @@
    VERTLIST* vertlist;
    INDEXLIST indexlist;

+   double visibilityRangeStart;
+   double visibilityRangeEnd;
+
    //ticks every time flush() is called
    int frameCtr;

Index: desmume/src/lua-engine.cpp
===================================================================
--- desmume/src/lua-engine.cpp  (revision 4477)
+++ desmume/src/lua-engine.cpp  (working copy)
@@ -29,6 +29,7 @@
 #include "GPU_osd.h"
 #include "saves.h"
 #include "emufile.h"
+#include "gfx3d.h"
 #if defined(WIN32) && !defined(WXPORT)
 #include <windows.h>
 #include "main.h"
@@ -4421,6 +4422,22 @@
    return 0;
 }

+// gui.setgfx3dvisibility(double bgStart, double bgEnd)
+//
+static int gui_setgfx3dvisibility(lua_State *L)
+{
+   double gfx3dStart = luaL_checknumber(L,1);
+   double gfx3dEnd = luaL_checknumber(L,2);
+
+   gfx3dStart = std::min(std::max(gfx3dStart, 0.0), 1.0);
+   gfx3dEnd = std::min(std::max(gfx3dEnd, 0.0), 1.0);
+
+   gfx3d.visibilityRangeStart = gfx3dStart;
+   gfx3d.visibilityRangeEnd = gfx3dEnd;
+
+   return 0;
+}
+
 DEFINE_LUA_FUNCTION(stylus_read, "")
 {

@@ -4559,6 +4576,7 @@
    {"gdoverlay", gui_gdoverlay},
    {"redraw", emu_redraw}, // some people might think of this as more of a GUI function
    {"osdtext", gui_osdtext},
+   {"setgfx3dvisibility", gui_setgfx3dvisibility},
    // alternative names
    {"drawtext", gui_text},
    {"drawbox", gui_box},
Index: desmume/src/OGLRender.cpp
===================================================================
--- desmume/src/OGLRender.cpp   (revision 4477)
+++ desmume/src/OGLRender.cpp   (working copy)
@@ -1078,6 +1078,9 @@
            POLY *poly = &gfx3d.polylist->list[gfx3d.indexlist.list[i]];
            int type = poly->type;

+           if (!poly->enabled)
+               continue;
+
            //a very macro-level state caching approach:
            //these are the only things which control the GPU rendering state.
            if(i==0 || lastTextureFormat != poly->texParam || lastTexturePalette != poly->texPalette || lastPolyAttr != poly->polyAttr)
Index: desmume/src/rasterize.cpp
===================================================================
--- desmume/src/rasterize.cpp   (revision 4477)
+++ desmume/src/rasterize.cpp   (working copy)
@@ -1060,7 +1060,8 @@

            polyAttr.backfacing = engine->polyBackfacing[i];

-           shape_engine<SLI>(type,!polyAttr.backfacing, (poly->vtxFormat & 4) && CommonSettings.GFX3D_LineHack);
+           if(poly->enabled)
+               shape_engine<SLI>(type,!polyAttr.backfacing, (poly->vtxFormat & 4) && CommonSettings.GFX3D_LineHack);
        }
    }

Index: desmume/src/version.cpp
===================================================================
--- desmume/src/version.cpp (revision 4477)
+++ desmume/src/version.cpp (working copy)
@@ -82,7 +82,7 @@
 #endif

 #define DESMUME_VERSION_NUMERIC 90800
-#define DESMUME_VERSION_STRING " " "0.9.8" DESMUME_SUBVERSION_STRING DESMUME_FEATURE_STRING DESMUME_PLATFORM_STRING DESMUME_CPUEXT_STRING DESMUME_COMPILER
+#define DESMUME_VERSION_STRING " " "0.9.8-gfx3dHack" DESMUME_SUBVERSION_STRING DESMUME_FEATURE_STRING DESMUME_PLATFORM_STRING DESMUME_CPUEXT_STRING DESMUME_COMPILER
 #define DESMUME_NAME_AND_VERSION DESMUME_NAME DESMUME_VERSION_STRING

 u32 EMU_DESMUME_VERSION_NUMERIC() { return DESMUME_VERSION_NUMERIC; }