a5872955f4
This library is a completely refactored and rewritten version of the original graphics hook. The code is more clean, readable, and has a variety of new features, such as scaling and forcing memory capture. Currently, only D3D9, 10, and 11 are implemented. (This commit may be updated on this branch)
136 lines
4.0 KiB
C++
136 lines
4.0 KiB
C++
#pragma once
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#include <stdint.h>
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static inline int safe_memcmp(const void *p1, const void *p2, size_t size)
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{
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__try {
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return memcmp(p1, p2, size);
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} __except (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION) {
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return -1;
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}
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}
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struct patch_info {
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size_t size;
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const BYTE *data;
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};
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#define NEW_PATCH(x) {sizeof(x), (x)}
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#define MAX_PATCH_SIZE 2
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static const BYTE force_jump[] = {0xEB};
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static const BYTE ignore_jump[] = {0x90, 0x90};
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#ifdef _WIN64
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#define NUM_VERS (10)
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#define CMP_SIZE (13)
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static const uintptr_t patch_offset[NUM_VERS] = {
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0x54FE6, //win7 - 6.1.7600.16385
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0x55095, //win7 - 6.1.7601.16562
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0x550C5, //win7 - 6.1.7601.17514
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0x8BDB5, //win8.1 - 6.3.9431.00000
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0x8E635, //win8.1 - 6.3.9600.17415
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0x90352, //win8.1 - 6.3.9600.17085
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0x9038A, //win8.1 - 6.3.9600.17095
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0x93AFA, //win8.1 - 6.3.9600.16384
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0x93B8A, //win8.1 - 6.3.9600.16404
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0x1841E5 //win8 - 6.2.9200.16384
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};
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static const uint8_t patch_cmp[NUM_VERS][CMP_SIZE] = {
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{0x48, 0x8b, 0x81, 0xb8, 0x3d, 0x00, 0x00, 0x39, 0x98, 0x68, 0x50, 0x00, 0x00},
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{0x48, 0x8b, 0x81, 0xb8, 0x3d, 0x00, 0x00, 0x39, 0x98, 0x68, 0x50, 0x00, 0x00},
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{0x48, 0x8b, 0x81, 0xb8, 0x3d, 0x00, 0x00, 0x39, 0x98, 0x68, 0x50, 0x00, 0x00},
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{0x48, 0x8b, 0x81, 0xb8, 0x3d, 0x00, 0x00, 0x39, 0xB0, 0x28, 0x51, 0x00, 0x00},
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{0x48, 0x8b, 0x81, 0xb8, 0x3d, 0x00, 0x00, 0x39, 0xA8, 0x28, 0x51, 0x00, 0x00},
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{0x8b, 0x81, 0xb8, 0x3d, 0x00, 0x00, 0x44, 0x39, 0xA0, 0x28, 0x51, 0x00, 0x00},
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{0x8b, 0x81, 0xb8, 0x3d, 0x00, 0x00, 0x44, 0x39, 0xA0, 0x28, 0x51, 0x00, 0x00},
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{0x8b, 0x81, 0xb8, 0x3d, 0x00, 0x00, 0x44, 0x39, 0xA0, 0x28, 0x51, 0x00, 0x00},
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{0x8b, 0x81, 0xb8, 0x3d, 0x00, 0x00, 0x44, 0x39, 0xA0, 0x28, 0x51, 0x00, 0x00},
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{0x49, 0x8b, 0x85, 0xb8, 0x3d, 0x00, 0x00, 0x39, 0x88, 0xc8, 0x50, 0x00, 0x00},
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};
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static const struct patch_info patch[NUM_VERS] = {
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NEW_PATCH(force_jump),
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NEW_PATCH(force_jump),
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NEW_PATCH(force_jump),
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NEW_PATCH(ignore_jump),
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NEW_PATCH(ignore_jump),
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NEW_PATCH(ignore_jump),
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NEW_PATCH(ignore_jump),
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NEW_PATCH(ignore_jump),
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NEW_PATCH(ignore_jump),
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NEW_PATCH(ignore_jump),
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};
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#else
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#define NUM_VERS (10)
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#define CMP_SIZE (12)
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static const uintptr_t patch_offset[NUM_VERS] = {
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0x79AA6, //win7 - 6.1.7601.16562
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0x79C9E, //win7 - 6.1.7600.16385
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0x79D96, //win7 - 6.1.7601.17514
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0x7F9BD, //win8.1 - 6.3.9431.00000
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0x8A3F4, //win8.1 - 6.3.9600.16404
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0x8E9F7, //win8.1 - 6.3.9600.17095
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0x8F00F, //win8.1 - 6.3.9600.17085
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0x8FBB1, //win8.1 - 6.3.9600.16384
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0x90264, //win8.1 - 6.3.9600.17415
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0x166A08 //win8 - 6.2.9200.16384
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};
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static const uint8_t patch_cmp[NUM_VERS][CMP_SIZE] = {
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{0x8b, 0x89, 0xe8, 0x29, 0x00, 0x00, 0x39, 0xb9, 0x80, 0x4b, 0x00, 0x00},
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{0x8b, 0x89, 0xe8, 0x29, 0x00, 0x00, 0x39, 0xb9, 0x80, 0x4b, 0x00, 0x00},
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{0x8b, 0x89, 0xe8, 0x29, 0x00, 0x00, 0x39, 0xb9, 0x80, 0x4b, 0x00, 0x00},
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{0x8b, 0x80, 0xe8, 0x29, 0x00, 0x00, 0x39, 0xb0, 0x40, 0x4c, 0x00, 0x00},
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{0x80, 0xe8, 0x29, 0x00, 0x00, 0x83, 0xb8, 0x40, 0x4c, 0x00, 0x00, 0x00},
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{0x80, 0xe8, 0x29, 0x00, 0x00, 0x83, 0xb8, 0x40, 0x4c, 0x00, 0x00, 0x00},
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{0x80, 0xe8, 0x29, 0x00, 0x00, 0x83, 0xb8, 0x40, 0x4c, 0x00, 0x00, 0x00},
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{0x80, 0xe8, 0x29, 0x00, 0x00, 0x83, 0xb8, 0x40, 0x4c, 0x00, 0x00, 0x00},
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{0x87, 0xe8, 0x29, 0x00, 0x00, 0x83, 0xb8, 0x40, 0x4c, 0x00, 0x00, 0x00},
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{0x8b, 0x80, 0xe8, 0x29, 0x00, 0x00, 0x39, 0x90, 0xb0, 0x4b, 0x00, 0x00},
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};
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static const struct patch_info patch[NUM_VERS] = {
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NEW_PATCH(force_jump),
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NEW_PATCH(force_jump),
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NEW_PATCH(force_jump),
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NEW_PATCH(force_jump),
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NEW_PATCH(force_jump),
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NEW_PATCH(force_jump),
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NEW_PATCH(force_jump),
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NEW_PATCH(force_jump),
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NEW_PATCH(ignore_jump),
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NEW_PATCH(force_jump),
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};
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#endif
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static inline int get_d3d9_patch(HMODULE d3d9)
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{
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uint8_t *addr = (uint8_t*)d3d9;
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for (int i = 0; i < NUM_VERS; i++) {
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int ret = safe_memcmp(addr + patch_offset[i], patch_cmp[i],
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CMP_SIZE);
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if (ret == 0)
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return i;
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}
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return -1;
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}
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static inline uint8_t *get_d3d9_patch_addr(HMODULE d3d9, int patch)
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{
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if (patch == -1)
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return nullptr;
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uint8_t *addr = (uint8_t*)d3d9;
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return addr + patch_offset[patch] + CMP_SIZE;
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}
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