mirror of
https://github.com/OpenDriver2/REDRIVER2.git
synced 2024-11-25 20:02:33 +01:00
361 lines
7.0 KiB
C
361 lines
7.0 KiB
C
#include "driver2.h"
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#include "models.h"
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#include "system.h"
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#include "spool.h"
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#include "mission.h"
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#include "cars.h"
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MODEL dummyModel = { 0 };
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char* modelname_buffer = NULL;
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char *car_models_lump = NULL;
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MODEL* modelpointers[MAX_MODEL_SLOTS];
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MODEL* pLodModels[MAX_MODEL_SLOTS];
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int num_models_in_pack = 0;
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u_short *Low2HighDetailTable = NULL;
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u_short *Low2LowerDetailTable = NULL;
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// [A]
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int staticModelSlotBitfield[48];
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// [A] returns freed slot count
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int CleanSpooledModelSlots()
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{
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int i;
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int num_freed;
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num_freed = 0;
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// assign model pointers
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for (i = 0; i < MAX_MODEL_SLOTS; i++) // [A] bug fix. Init with dummyModel
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{
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// if bit does not indicate usage - reset to dummy model
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if((staticModelSlotBitfield[i >> 5] & 1 << (i & 31)) == 0)
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{
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if(modelpointers[i] != &dummyModel)
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{
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modelpointers[i] = &dummyModel;
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pLodModels[i] = &dummyModel;
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num_freed++;
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}
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}
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}
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return num_freed;
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}
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// [D] [T]
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void ProcessMDSLump(char *lump_file, int lump_size)
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{
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char* mdsfile;
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MODEL *model;
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MODEL *parentmodel;
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int modelAmts;
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int i, size;
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modelAmts = *(int *)lump_file;
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mdsfile = (lump_file + 4);
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num_models_in_pack = modelAmts;
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// [A] usage bits
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ClearMem((char*)staticModelSlotBitfield, sizeof(staticModelSlotBitfield));
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// assign model pointers
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for (i = 0; i < MAX_MODEL_SLOTS; i++) // [A] bug fix. Init with dummyModel
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{
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modelpointers[i] = &dummyModel;
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pLodModels[i] = &dummyModel;
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}
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for (i = 0; i < modelAmts; i++)
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{
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size = *(int*)mdsfile;
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mdsfile += sizeof(int);
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if (size)
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{
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// add the usage bit
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staticModelSlotBitfield[i >> 5] |= 1 << (i & 31);
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model = (MODEL*)mdsfile;
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modelpointers[i] = model;
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}
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mdsfile += size;
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}
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// process parent instances
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for (i = 0; i < modelAmts; i++)
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{
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model = modelpointers[i];
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if (model->instance_number != -1)
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{
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parentmodel = modelpointers[model->instance_number];
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// convert to real offsets
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model->vertices = (int)(char*)parentmodel + parentmodel->vertices;
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model->normals = (int)(char*)parentmodel + parentmodel->normals;
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model->point_normals = (int)(char*)parentmodel + parentmodel->point_normals;
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if ((uint)parentmodel->collision_block != 0)
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model->collision_block = (int)(char*)parentmodel + parentmodel->collision_block;
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}
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}
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// process models without parents
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for (i = 0; i < modelAmts; i++)
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{
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model = modelpointers[i];
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if (model->instance_number == -1)
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{
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model->vertices += (int)model;
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model->normals += (int)model;
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model->point_normals += (int)model;
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if ((uint)model->collision_block != 0)
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model->collision_block += (int)model;
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}
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model->poly_block += (int)(char*)model;
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}
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}
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// [D] [T]
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int ProcessCarModelLump(char *lump_ptr, int lump_size)
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{
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int size;
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int *offsets;
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char *models_offset;
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MODEL *model;
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int model_number;
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int i;
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int specMemReq;
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specMemReq = 0;
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models_offset = lump_ptr + 4 + 160; // also skip model count
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offsets = (int*)(lump_ptr + 100);
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// compute special memory requirement for spooling
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for (i = 8; i < 13; i++)
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{
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int cleanOfs = offsets[0];
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int damOfs = offsets[1];
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int lowOfs = offsets[2];
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if (cleanOfs != -1)
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{
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size = ((MODEL*)(models_offset + cleanOfs))->poly_block;
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if (damOfs != -1)
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size += ((MODEL*)(models_offset + damOfs))->normals;
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if (lowOfs != -1)
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size += ((MODEL*)(models_offset + lowOfs))->poly_block;
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size = (size + 2048) + 2048;
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if (size > specMemReq)
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specMemReq = size;
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size = (damOfs - cleanOfs) + 2048;
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if (size > specMemReq)
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specMemReq = size;
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size = (lowOfs - damOfs) + 2048;
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if (size > specMemReq)
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specMemReq = size;
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if (i != 11) // what the fuck is this hack about?
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{
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// next model offset?
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size = (offsets[3] - lowOfs) + 2048;
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if(size > specMemReq)
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specMemReq = size;
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}
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}
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offsets += 3;
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}
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for (i = 0; i < 5; i++)
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{
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gCarCleanModelPtr[i] = NULL;
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gCarDamModelPtr[i] = NULL;
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gCarLowModelPtr[i] = NULL;
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if (i == 4)
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specmallocptr = (char*)mallocptr;
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model_number = MissionHeader->residentModels[i];
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if (model_number == 13)
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{
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model_number = 10 - (MissionHeader->residentModels[0] + MissionHeader->residentModels[1] + MissionHeader->residentModels[2]);
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if (model_number < 1)
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model_number = 1;
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else if (model_number > 4)
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model_number = 4;
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}
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if (model_number != -1)
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{
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offsets = (int *)(lump_ptr + 4 + model_number * sizeof(int)*3);
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int cleanOfs = offsets[0];
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int damOfs = offsets[1];
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int lowOfs = offsets[2];
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if (cleanOfs != -1)
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{
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D_MALLOC_BEGIN();
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model = GetCarModel(models_offset + cleanOfs, (char**)&mallocptr, 1, model_number, CAR_MODEL_CLEAN);
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gCarCleanModelPtr[i] = model;
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D_MALLOC_END();
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}
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if (damOfs != -1)
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{
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D_MALLOC_BEGIN();
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model = GetCarModel(models_offset + damOfs, (char**)&mallocptr, 0, model_number, CAR_MODEL_DAMAGED);
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gCarDamModelPtr[i] = model;
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D_MALLOC_END();
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}
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if (lowOfs != -1)
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{
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D_MALLOC_BEGIN();
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model = GetCarModel(models_offset + lowOfs, (char**)&mallocptr, 1, model_number, CAR_MODEL_LOWDETAIL);
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gCarLowModelPtr[i] = model;
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D_MALLOC_END();
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}
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}
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}
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D_MALLOC_BEGIN();
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mallocptr = specmallocptr + specMemReq;
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specLoadBuffer = specmallocptr + specMemReq - 2048;
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D_MALLOC_END();
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buildNewCars();
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return 0;
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}
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char* CarModelTypeNames[] = {
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"CLEAN",
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"DAMAGED",
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"LOW",
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};
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#ifndef PSX
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// [A] loads car model from file
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char* LoadCarModelFromFile(char* dest, int modelNumber, int type)
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{
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char* mem;
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char filename[64];
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sprintf(filename, "LEVELS\\%s\\CARMODEL_%d_%s.DMODEL", LevelNames[GameLevel], modelNumber, CarModelTypeNames[type-1]);
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if(FileExists(filename))
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{
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mem = (char*)(dest ? dest : (_other_buffer + modelNumber * 0x10000 + (type-1) * 0x4000));
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// get model from file
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Loadfile(filename, mem);
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return mem;
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}
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return NULL;
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}
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#endif
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// [D] [T]
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MODEL* GetCarModel(char *src, char **dest, int KeepNormals, int modelNumber, int type)
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{
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int size;
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MODEL *model;
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char* mem;
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#ifndef PSX
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mem = LoadCarModelFromFile(NULL, modelNumber, type);
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if (!mem) // fallback to lump
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mem = src;
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#else
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mem = src;
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#endif
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model = (MODEL *)*dest;
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if (KeepNormals == 0)
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size = ((MODEL*)mem)->normals;
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else
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size = ((MODEL*)mem)->poly_block;
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// if loaded externally don't copy from source lump
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memcpy((u_char*)*dest, (u_char*)mem, size);
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if (KeepNormals == 0)
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size = model->normals;
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else
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size = model->poly_block;
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//*dest += size + 2;
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*dest = (char*)((int)model + size + 3 & 0xfffffffc);
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model->vertices += (int)model;
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model->normals += (int)model;
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model->poly_block = (int)mem + model->poly_block;
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if (KeepNormals == 0)
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model->point_normals = 0;
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else
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model->point_normals += (int)model;
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return model;
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}
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// [D] [T]
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MODEL* FindModelPtrWithName(char *name)
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{
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int idx;
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idx = FindModelIdxWithName(name);
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return idx >= 0 ? modelpointers[idx] : NULL;
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}
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// [D] [T]
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int FindModelIdxWithName(char *name)
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{
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char *str;
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int i;
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i = 0;
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str = modelname_buffer;
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while (i < num_models_in_pack)
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{
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if (!strcmp(str, name))
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return i;
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while (*str++) {} // go to next string
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i++;
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}
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return -1;
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}
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