113 lines
3.7 KiB
C++
113 lines
3.7 KiB
C++
#include <string>
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#include <vector>
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#include <integers.h>
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#include "shms.h"
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#include "mod-core.h"
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#include "mod-maps.h"
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#include <DFTypes.h>
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using namespace DFHack;
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using namespace DFHack::Maps;
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#include <string.h>
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#include <malloc.h>
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extern char *shm;
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//TODO: circular buffer streaming primitives required
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//TODO: commands can fail without the proper offsets. Hot to handle that?
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#define SHMHDR ((shm_maps_hdr *)shm)
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#define SHMCMD ((shm_cmd *)shm)->pingpong
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#define SHMDATA ((char *)(shm + SHM_HEADER))
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void NullCommand (void* data)
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{
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};
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void InitOffsets (void* data)
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{
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maps_modulestate * state = (maps_modulestate *) data;
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memcpy((void *) &(state->offsets), SHMDATA, sizeof(maps_offsets));
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((maps_modulestate *) data)->inited = true;
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}
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void GetMapSize (void *data)
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{
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maps_modulestate * state = (maps_modulestate *) data;
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if(state->inited)
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{
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SHMHDR->x = *(uint32_t *) (state->offsets.x_count_offset);
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SHMHDR->y = *(uint32_t *) (state->offsets.y_count_offset);
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SHMHDR->z = *(uint32_t *) (state->offsets.z_count_offset);
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SHMHDR->error = false;
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}
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else
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{
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SHMHDR->error = true;
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}
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}
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struct mblock
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{
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uint32_t * ptr_to_dirty;
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};
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#define SHMBLOCK ((mapblock40d *)(shm + SHM_HEADER))
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void ReadBlockByCoords (void * data)
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{
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maps_modulestate * state = (maps_modulestate *) data;
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maps_offsets & offsets = state->offsets;
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/* map_offset is a pointer to
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a pointer to
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an X block of pointers to
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an Y blocks of pointers to
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a Z blocks of pointers to
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map blocks
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only Z blocks can have NULL pointers? TODO: verify
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*/
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mblock * *** mapArray = *(mblock * ****)offsets.map_offset;
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mblock * block = mapArray[SHMHDR->x][SHMHDR->y][SHMHDR->z];
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//fprintf(stderr, "Readblock: %d %d %d 0x%x\n", SHMHDR->x,SHMHDR->y,SHMHDR->z, block);
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if(block)
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{
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memcpy(&(SHMBLOCK->tiletypes), block + offsets.tile_type_offset, sizeof(SHMBLOCK->tiletypes));
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memcpy(&(SHMBLOCK->designaton), block + offsets.designation_offset, sizeof(SHMBLOCK->designaton));
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memcpy(&(SHMBLOCK->occupancy), block + offsets.occupancy_offset, sizeof(SHMBLOCK->occupancy));
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memcpy(&(SHMBLOCK->biome_indices), block + offsets.biome_stuffs, sizeof(SHMBLOCK->biome_indices));
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SHMBLOCK->dirty_dword = *block->ptr_to_dirty;
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SHMBLOCK->origin = reinterpret_cast<uint32_t>(block);
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SHMHDR->error = false;
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}
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else
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{
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SHMHDR->error = true;
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}
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}
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DFPP_module InitMaps( void )
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{
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DFPP_module maps;
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maps.name = "Maps";
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maps.version = MAPS_VERSION;
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// freed by the core
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maps.modulestate = malloc(sizeof(maps_modulestate)); // we store a flag
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memset(maps.modulestate,0,sizeof(maps_modulestate));
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maps.reserve(NUM_MAPS_CMDS);
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// client sends a maps_offsets struct -> inited = true;
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maps.set_command(MAP_INIT, FUNCTION, "Supply the module with offsets",InitOffsets,CORE_SUSPENDED);
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maps.set_command(MAP_GET_SIZE, FUNCTION, "Get map size in 16x16x1 tile blocks", GetMapSize, CORE_SUSPENDED);
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maps.set_command(MAP_READ_BLOCK_BY_COORDS, FUNCTION, "Read the whole block with specified coords", ReadBlockByCoords, CORE_SUSPENDED);
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// will it fit into 1MB? We shouldn't assume this is the case
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maps.set_command(MAP_READ_BLOCKTREE, FUNCTION,"Get the tree of block pointers as a single structure", NullCommand, CORE_SUSPENDED);
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// really doesn't fit into 1MB, there should be a streaming variant to better utilize context switches
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maps.set_command(MAP_READ_BLOCKS_3D, FUNCTION, "Read a range of blocks between two sets of coords", NullCommand, CORE_SUSPENDED);
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return maps;
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} |