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win-capture: Add trick to ensure game cap. shared tex support

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This new trick forgoes the use of patches and allows the ability to use
shared GPU resources despite being a Direct3D 9.0c context.
This commit is contained in:
jp9000
2016-08-08 21:54:06 -07:00
parent 27ac2cf940
commit 6d33f7e091
5 changed files with 128 additions and 5 deletions
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90
plugins/win-capture/get-graphics-offsets/d3d9-offsets.cpp
View File

@@ -80,17 +80,107 @@ static inline void d3d9_free(d3d9_info &info)
DestroyWindow(info.hwnd);
}
#ifdef _WIN64
#define CMP_SIZE 21
static const uint8_t mask[CMP_SIZE] =
{0xF8, 0xFF, 0xC0, 0x00, 0x00, 0x00, 0x00,
0xFF, 0xC0, 0x00, 0x00, 0x00, 0x00,
0xFF, 0x00,
0xF8, 0xF8, 0x00, 0x00, 0x00, 0x00};
static const uint8_t mask_cmp[CMP_SIZE] =
{0x48, 0x8B, 0x80, 0x00, 0x00, 0x00, 0x00,
0x39, 0x80, 0x00, 0x00, 0x00, 0x00,
0x75, 0x00,
0x40, 0xB8, 0x00, 0x00, 0x00, 0x00};
#else
#define CMP_SIZE 19
static const uint8_t mask[CMP_SIZE] =
{0xFF, 0xC0, 0x00, 0x00, 0x00, 0x00,
0xFF, 0xC0, 0x00, 0x00, 0x00, 0x00,
0xFF, 0x00,
0xFF, 0x00, 0x00, 0x00, 0x00};
static const uint8_t mask_cmp[CMP_SIZE] =
{0x8B, 0x80, 0x00, 0x00, 0x00, 0x00,
0x39, 0x80, 0x00, 0x00, 0x00, 0x00,
0x75, 0x00,
0x68, 0x00, 0x00, 0x00, 0x00};
#endif
#define MAX_FUNC_SCAN_BYTES 200
static inline bool pattern_matches(uint8_t *byte)
{
for (size_t i = 0; i < CMP_SIZE; i++) {
if ((byte[i] & mask[i]) != mask_cmp[i])
return false;
}
return true;
}
void get_d3d9_offsets(struct d3d9_offsets *offsets)
{
d3d9_info info = {};
bool success = d3d9_init(info);
if (success) {
uint8_t **vt = *(uint8_t***)info.device;
uint8_t *crr = vt[125];
offsets->present = vtable_offset(info.module, info.device, 17);
offsets->present_ex = vtable_offset(info.module, info.device,
121);
offsets->present_swap = vtable_offset(info.module, info.swap,
3);
for (size_t i = 0; i < MAX_FUNC_SCAN_BYTES; i++) {
if (pattern_matches(&crr[i])) {
#define get_offset(x) *(uint32_t*)&crr[i + x]
#ifdef _WIN64
uint32_t off1 = get_offset(3);
uint32_t off2 = get_offset(9);
#else
uint32_t off1 = get_offset(2);
uint32_t off2 = get_offset(8);
#endif
/* check to make sure offsets are within
* expected values */
if (off1 > 0xFFFF || off2 > 0xFFFF)
break;
/* check to make sure offsets actually point
* toward expected data */
#ifdef _MSC_VER
__try {
uint8_t *ptr = (uint8_t*)(info.device);
uint8_t *d3d9_ptr =
*(uint8_t**)(ptr + off1);
if (d3d9_ptr != (uint8_t*)info.d3d9ex)
break;
BOOL &is_d3d9ex =
*(BOOL*)(d3d9_ptr + off2);
if (is_d3d9ex != TRUE)
break;
} __except(EXCEPTION_EXECUTE_HANDLER) {
break;
}
#endif
offsets->d3d9_clsoff = off1;
offsets->is_d3d9ex_clsoff = off2;
break;
}
}
}
d3d9_free(info);

2
plugins/win-capture/get-graphics-offsets/get-graphics-offsets.c
View File

@@ -31,6 +31,8 @@ int main(int argc, char *argv[])
printf("present=0x%"PRIx32"\n", d3d9.present);
printf("present_ex=0x%"PRIx32"\n", d3d9.present_ex);
printf("present_swap=0x%"PRIx32"\n", d3d9.present_swap);
printf("d3d9_clsoff=0x%"PRIx32"\n", d3d9.d3d9_clsoff);
printf("is_d3d9ex_clsoff=0x%"PRIx32"\n", d3d9.is_d3d9ex_clsoff);
printf("[dxgi]\n");
printf("present=0x%"PRIx32"\n", dxgi.present);
printf("resize=0x%"PRIx32"\n", dxgi.resize);