Properly pass nodes data along to functions that need it without breaking the original data pointer
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81422c4e6d
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136c656cc0
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@ -1485,7 +1485,7 @@ typedef enum {
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} nodetype_t;
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} nodetype_t;
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// Find out the BSP format.
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// Find out the BSP format.
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static nodetype_t P_GetNodetype(const virtres_t *virt, virtlump_t **virtnodes)
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static nodetype_t P_GetNodetype(const virtres_t *virt, UINT8 **nodedata)
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{
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{
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boolean supported[NUMNODETYPES];
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boolean supported[NUMNODETYPES];
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nodetype_t nodetype = NT_UNSUPPORTED;
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nodetype_t nodetype = NT_UNSUPPORTED;
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@ -1493,7 +1493,7 @@ static nodetype_t P_GetNodetype(const virtres_t *virt, virtlump_t **virtnodes)
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if (vres_Find(virt, "TEXTMAP"))
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if (vres_Find(virt, "TEXTMAP"))
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{
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{
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*virtnodes = vres_Find(virt, "ZNODES");
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*nodedata = vres_Find(virt, "ZNODES")->data;
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supported[NT_XGLN] = supported[NT_XGL3] = true;
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supported[NT_XGLN] = supported[NT_XGL3] = true;
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}
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}
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else
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else
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@ -1503,7 +1503,7 @@ static nodetype_t P_GetNodetype(const virtres_t *virt, virtlump_t **virtnodes)
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if (virtsegs && virtsegs->size)
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if (virtsegs && virtsegs->size)
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{
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{
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*virtnodes = vres_Find(virt, "NODES");
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*nodedata = vres_Find(virt, "NODES")->data;
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return NT_DOOM; // Traditional map format BSP tree.
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return NT_DOOM; // Traditional map format BSP tree.
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}
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}
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@ -1511,19 +1511,19 @@ static nodetype_t P_GetNodetype(const virtres_t *virt, virtlump_t **virtnodes)
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if (virtssectors && virtssectors->size)
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if (virtssectors && virtssectors->size)
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{ // Possibly GL nodes: NODES ignored, SSECTORS takes precedence as nodes lump, (It is confusing yeah) and has a signature.
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{ // Possibly GL nodes: NODES ignored, SSECTORS takes precedence as nodes lump, (It is confusing yeah) and has a signature.
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*virtnodes = virtssectors;
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*nodedata = virtssectors->data;
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supported[NT_XGLN] = supported[NT_ZGLN] = supported[NT_XGL3] = true;
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supported[NT_XGLN] = supported[NT_ZGLN] = supported[NT_XGL3] = true;
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}
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}
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else
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else
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{ // Possibly ZDoom extended nodes: SSECTORS is empty, NODES has a signature.
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{ // Possibly ZDoom extended nodes: SSECTORS is empty, NODES has a signature.
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*virtnodes = vres_Find(virt, "NODES");
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*nodedata = vres_Find(virt, "NODES")->data;
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supported[NT_XNOD] = supported[NT_ZNOD] = true;
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supported[NT_XNOD] = supported[NT_ZNOD] = true;
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}
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}
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}
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}
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M_Memcpy(signature, (*virtnodes)->data, 4);
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M_Memcpy(signature, *nodedata, 4);
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signature[4] = '\0';
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signature[4] = '\0';
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(*virtnodes)->data += 4;
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(*nodedata) += 4;
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if (!strcmp(signature, "XNOD"))
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if (!strcmp(signature, "XNOD"))
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nodetype = NT_XNOD;
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nodetype = NT_XNOD;
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@ -1540,10 +1540,10 @@ static nodetype_t P_GetNodetype(const virtres_t *virt, virtlump_t **virtnodes)
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}
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}
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// Extended node formats feature additional vertices; useful for OpenGL, but totally useless in gamelogic.
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// Extended node formats feature additional vertices; useful for OpenGL, but totally useless in gamelogic.
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static boolean P_LoadExtraVertices(UINT8 *data)
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static boolean P_LoadExtraVertices(UINT8 **data)
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{
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{
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UINT32 origvrtx = READUINT32(data);
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UINT32 origvrtx = READUINT32((*data));
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UINT32 xtrvrtx = READUINT32(data);
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UINT32 xtrvrtx = READUINT32((*data));
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line_t* ld = lines;
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line_t* ld = lines;
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vertex_t *oldpos = vertexes;
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vertex_t *oldpos = vertexes;
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ssize_t offset;
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ssize_t offset;
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@ -1572,28 +1572,28 @@ static boolean P_LoadExtraVertices(UINT8 *data)
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// Read extra vertex data.
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// Read extra vertex data.
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for (i = origvrtx; i < numvertexes; i++)
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for (i = origvrtx; i < numvertexes; i++)
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{
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{
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vertexes[i].x = READFIXED(data);
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vertexes[i].x = READFIXED((*data));
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vertexes[i].y = READFIXED(data);
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vertexes[i].y = READFIXED((*data));
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}
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}
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return true;
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return true;
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}
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}
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static boolean P_LoadExtendedSubsectorsAndSegs(UINT8 *data, nodetype_t nodetype)
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static boolean P_LoadExtendedSubsectorsAndSegs(UINT8 **data, nodetype_t nodetype)
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{
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{
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size_t i, k;
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size_t i, k;
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INT16 m;
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INT16 m;
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seg_t *seg;
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seg_t *seg;
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// Subsectors
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// Subsectors
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numsubsectors = READUINT32(data);
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numsubsectors = READUINT32((*data));
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subsectors = Z_Calloc(numsubsectors*sizeof(*subsectors), PU_LEVEL, NULL);
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subsectors = Z_Calloc(numsubsectors*sizeof(*subsectors), PU_LEVEL, NULL);
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for (i = 0; i < numsubsectors; i++)
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for (i = 0; i < numsubsectors; i++)
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subsectors[i].numlines = READUINT32(data);
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subsectors[i].numlines = READUINT32((*data));
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// Segs
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// Segs
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numsegs = READUINT32(data);
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numsegs = READUINT32((*data));
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segs = Z_Calloc(numsegs*sizeof(*segs), PU_LEVEL, NULL);
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segs = Z_Calloc(numsegs*sizeof(*segs), PU_LEVEL, NULL);
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for (i = 0, k = 0; i < numsubsectors; i++)
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for (i = 0, k = 0; i < numsubsectors; i++)
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@ -1608,7 +1608,7 @@ static boolean P_LoadExtendedSubsectorsAndSegs(UINT8 *data, nodetype_t nodetype)
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for (m = 0; m < subsectors[i].numlines; m++, k++)
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for (m = 0; m < subsectors[i].numlines; m++, k++)
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{
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{
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UINT16 linenum;
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UINT16 linenum;
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UINT32 vert = READUINT32(data);
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UINT32 vert = READUINT32((*data));
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segs[k].v1 = &vertexes[vert];
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segs[k].v1 = &vertexes[vert];
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if (m == 0)
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if (m == 0)
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@ -1616,24 +1616,24 @@ static boolean P_LoadExtendedSubsectorsAndSegs(UINT8 *data, nodetype_t nodetype)
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else
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else
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segs[k - 1].v2 = segs[k].v1;
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segs[k - 1].v2 = segs[k].v1;
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data += 4; // partner, can be ignored by software renderer
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(*data) += 4; // partner, can be ignored by software renderer
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if (nodetype == NT_XGL3)
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if (nodetype == NT_XGL3)
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data += 2; // Line number is 32-bit in XGL3, but we're limited to 16 bits.
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(*data) += 2; // Line number is 32-bit in XGL3, but we're limited to 16 bits.
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linenum = READUINT16(data);
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linenum = READUINT16((*data));
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segs[k].glseg = (linenum == 0xFFFF);
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segs[k].glseg = (linenum == 0xFFFF);
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segs[k].linedef = (linenum == 0xFFFF) ? NULL : &lines[linenum];
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segs[k].linedef = (linenum == 0xFFFF) ? NULL : &lines[linenum];
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segs[k].side = READUINT8(data);
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segs[k].side = READUINT8((*data));
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}
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}
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break;
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break;
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case NT_XNOD:
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case NT_XNOD:
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for (m = 0; m < subsectors[i].numlines; m++, k++)
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for (m = 0; m < subsectors[i].numlines; m++, k++)
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{
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{
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segs[k].v1 = &vertexes[READUINT32(data)];
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segs[k].v1 = &vertexes[READUINT32((*data))];
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segs[k].v2 = &vertexes[READUINT32(data)];
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segs[k].v2 = &vertexes[READUINT32((*data))];
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segs[k].linedef = &lines[READUINT16(data)];
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segs[k].linedef = &lines[READUINT16((*data))];
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segs[k].side = READUINT8(data);
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segs[k].side = READUINT8((*data));
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segs[k].glseg = false;
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segs[k].glseg = false;
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}
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}
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break;
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break;
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@ -1662,44 +1662,45 @@ static UINT16 ShrinkNodeID(UINT32 x) {
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return result | mask;
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return result | mask;
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}
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}
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static void P_LoadExtendedNodes(UINT8 *data, nodetype_t nodetype)
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static void P_LoadExtendedNodes(UINT8 **data, nodetype_t nodetype)
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{
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{
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node_t *mn;
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node_t *mn;
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size_t i, j, k;
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size_t i, j, k;
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boolean xgl3 = (nodetype == NT_XGL3);
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boolean xgl3 = (nodetype == NT_XGL3);
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numnodes = READINT32(data);
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numnodes = READINT32((*data));
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nodes = Z_Calloc(numnodes*sizeof(*nodes), PU_LEVEL, NULL);
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nodes = Z_Calloc(numnodes*sizeof(*nodes), PU_LEVEL, NULL);
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for (i = 0, mn = nodes; i < numnodes; i++, mn++)
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for (i = 0, mn = nodes; i < numnodes; i++, mn++)
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{
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{
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// Splitter
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// Splitter
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mn->x = xgl3 ? READINT32(data) : (READINT16(data) << FRACBITS);
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mn->x = xgl3 ? READINT32((*data)) : (READINT16((*data)) << FRACBITS);
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mn->y = xgl3 ? READINT32(data) : (READINT16(data) << FRACBITS);
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mn->y = xgl3 ? READINT32((*data)) : (READINT16((*data)) << FRACBITS);
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mn->dx = xgl3 ? READINT32(data) : (READINT16(data) << FRACBITS);
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mn->dx = xgl3 ? READINT32((*data)) : (READINT16((*data)) << FRACBITS);
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mn->dy = xgl3 ? READINT32(data) : (READINT16(data) << FRACBITS);
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mn->dy = xgl3 ? READINT32((*data)) : (READINT16((*data)) << FRACBITS);
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// Bounding boxes
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// Bounding boxes
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for (j = 0; j < 2; j++)
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for (j = 0; j < 2; j++)
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for (k = 0; k < 4; k++)
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for (k = 0; k < 4; k++)
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mn->bbox[j][k] = READINT16(data) << FRACBITS;
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mn->bbox[j][k] = READINT16((*data)) << FRACBITS;
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//Children
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//Children
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mn->children[0] = ShrinkNodeID(READUINT32(data)); /// \todo Use UINT32 for node children in a future, instead?
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mn->children[0] = ShrinkNodeID(READUINT32((*data))); /// \todo Use UINT32 for node children in a future, instead?
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mn->children[1] = ShrinkNodeID(READUINT32(data));
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mn->children[1] = ShrinkNodeID(READUINT32((*data)));
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}
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}
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}
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}
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static void P_LoadMapBSP(const virtres_t *virt)
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static void P_LoadMapBSP(const virtres_t *virt)
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{
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{
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virtlump_t *virtnodes = NULL;
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UINT8 *nodedata = NULL;
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nodetype_t nodetype = P_GetNodetype(virt, &virtnodes);
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nodetype_t nodetype = P_GetNodetype(virt, &nodedata);
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switch (nodetype)
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switch (nodetype)
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{
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{
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case NT_DOOM:
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case NT_DOOM:
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{
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{
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virtlump_t *virtssectors = vres_Find(virt, "SSECTORS");
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virtlump_t *virtssectors = vres_Find(virt, "SSECTORS");
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virtlump_t* virtnodes = vres_Find(virt, "NODES");
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virtlump_t *virtsegs = vres_Find(virt, "SEGS");
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virtlump_t *virtsegs = vres_Find(virt, "SEGS");
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numsubsectors = virtssectors->size / sizeof(mapsubsector_t);
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numsubsectors = virtssectors->size / sizeof(mapsubsector_t);
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@ -1725,11 +1726,11 @@ static void P_LoadMapBSP(const virtres_t *virt)
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case NT_XNOD:
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case NT_XNOD:
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case NT_XGLN:
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case NT_XGLN:
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case NT_XGL3:
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case NT_XGL3:
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if (!P_LoadExtraVertices(virtnodes->data))
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if (!P_LoadExtraVertices(&nodedata))
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return;
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return;
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if (!P_LoadExtendedSubsectorsAndSegs(virtnodes->data, nodetype))
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if (!P_LoadExtendedSubsectorsAndSegs(&nodedata, nodetype))
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return;
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return;
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P_LoadExtendedNodes(virtnodes->data, nodetype);
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P_LoadExtendedNodes(&nodedata, nodetype);
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break;
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break;
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default:
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default:
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CONS_Alert(CONS_WARNING, "Unsupported BSP format detected.\n");
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CONS_Alert(CONS_WARNING, "Unsupported BSP format detected.\n");
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