mirror of
https://github.com/RetroPortingToolKit/psxrecomp
synced 2026-10-26 02:11:36 -04:00
Matthew Stanley
51 lines
3.4 KiB
C
51 lines
3.4 KiB
C
/* Include implementation to inspect owned backing storage without pulling in
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* hardware routing. Section GC discards unrelated memory access functions. */
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#include "memory.c"
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static void check(int ok,const char* text){if(!ok){fprintf(stderr,"FAIL %s\n",text);exit(1);}}
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int main(void){
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check(psx_mod_memory_snapshot_bytes()==0 && psx_mod_memory_layout_cookie()==0,"vanilla unchanged");
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psx_mod_memory_snapshot_write(NULL);
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check(psx_mod_memory_alloc(13,16)==0x9f000000u,"CPU allocation");
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check(psx_mod_gpu_dma_memory_alloc(5u*1024u*1024u,16)==PSX_MOD_GPU_DMA_GUEST_BASE,"beyond old four MiB");
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check(psx_mod_gpu_dma_resolve_address(0xd00000u)==0x100000u,"unallocated tag retains retail folding");
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uint32_t size=psx_mod_memory_snapshot_bytes(),cookie=psx_mod_memory_layout_cookie();
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uint8_t* saved=(uint8_t*)malloc(size);check(saved!=NULL,"test buffer");
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memset(mod_memory,0x12,mod_memory_used);memset(mod_gpu_dma_memory,0x34,mod_gpu_dma_memory_used);
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psx_mod_memory_snapshot_write(saved);
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memset(mod_memory,0x56,mod_memory_used);memset(mod_gpu_dma_memory,0x78,mod_gpu_dma_memory_used);
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check(!psx_mod_memory_snapshot_read(saved,size-1),"truncation rejected");
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saved[0]=99;
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check(!psx_mod_memory_snapshot_read(saved,size) && mod_memory[0]==0x56,"bad version no mutation");
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saved[0]=1;saved[8]++;
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check(!psx_mod_memory_snapshot_read(saved,size) && mod_gpu_dma_memory[0]==0x78,"bad layout no mutation");
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saved[8]--;
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check(psx_mod_memory_snapshot_read(saved,size),"restore");
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for(uint32_t i=0;i<mod_memory_used;++i)check(mod_memory[i]==0x12,"CPU bytes restored");
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for(uint32_t i=0;i<mod_gpu_dma_memory_used;++i)check(mod_gpu_dma_memory[i]==0x34,"DMA bytes restored");
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check(psx_mod_memory_layout_cookie()==cookie,"stable layout identity");
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check(psx_mod_gpu_dma_memory_alloc(16,16)!=0 && psx_mod_memory_layout_cookie()!=cookie,"layout change detected");
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check(!psx_mod_memory_snapshot_read(saved,size),"old layout rejected");
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/* Render passes write mod arenas through a first-write page journal and
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* put them back with the rest of the pass restore. */
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{
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const uint64_t before = render_pass_mod_arenas_hash();
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check(render_pass_mod_store(PSX_MOD_GPU_DMA_GUEST_BASE + 8u, 0xAABBCCDDu, 4) == 1 &&
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mod_gpu_dma_memory[8] == 0xDD && mod_gpu_dma_memory[11] == 0xAA,
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"pass store reaches the GPU-DMA arena");
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check(render_pass_mod_store(PSX_MOD_GPU_DMA_GUEST_BASE + 4096u - 2u, 0x1234u, 2) == 1,
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"pass store at a page edge");
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check(render_pass_mod_store(0x9f000004u, 0x77u, 1) == 1 && mod_memory[4] == 0x77,
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"pass store reaches mod memory");
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check(render_pass_mod_store(0x80001000u, 1u, 4) == 0, "main RAM left to the RAM path");
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check(render_pass_mod_arenas_hash() != before, "hash sees the pass writes");
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render_pass_mod_arenas_rollback();
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check(mod_gpu_dma_memory[8] == 0x34 && mod_gpu_dma_memory[4094] == 0x34 &&
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mod_memory[4] == 0x12 && render_pass_mod_arenas_hash() == before,
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"rollback restores every journaled page");
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check(render_pass_mod_store(PSX_MOD_GPU_DMA_GUEST_BASE + 8u, 0x1u, 4) == 1 &&
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(render_pass_mod_arenas_rollback(), mod_gpu_dma_memory[8] == 0x34),
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"a second pass journals again");
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}
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free(saved);puts("enhancement snapshot checks passed");return 0;
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}
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