win-capture: deal with a 32bit handle cast errors

The HWND type is a void pointer, but HWND values are global and always
32bit despite, so casting to 32bit can cause cast warnings on actual
good compilers like gcc via mingw.  This change correctly handles the
casting to 32bits without producing unwanted warnings or errors on
mingw.

plugins/win-capture/graphics-hook/d3d10-capture.cpp

@@ -510,7 +510,7 @@ static bool d3d10_shtex_init(HWND window)
 	}
 	if (!capture_init_shtex(&data.shtex_info, window,
 				data.base_cx, data.base_cy, data.cx, data.cy,
-				data.format, false, (uint32_t)data.handle)) {
+				data.format, false, (uintptr_t)data.handle)) {
 		return false;
 	}
 

plugins/win-capture/graphics-hook/d3d11-capture.cpp

@@ -516,7 +516,7 @@ static bool d3d11_shtex_init(HWND window)
 	}
 	if (!capture_init_shtex(&data.shtex_info, window,
 				data.base_cx, data.base_cy, data.cx, data.cy,
-				data.format, false, (uint32_t)data.handle)) {
+				data.format, false, (uintptr_t)data.handle)) {
 		return false;
 	}
 

plugins/win-capture/graphics-hook/d3d9-capture.cpp

@@ -285,7 +285,7 @@ static bool d3d9_shtex_init(uint32_t cx, uint32_t cy, HWND window)
 	}
 	if (!capture_init_shtex(&data.shtex_info, window, cx, cy,
 				data.cx, data.cy, data.dxgi_format, false,
-				(uint32_t)data.handle)) {
+				(uintptr_t)data.handle)) {
 		return false;
 	}
 

plugins/win-capture/graphics-hook/graphics-hook.c

@@ -581,7 +581,7 @@ static inline bool init_shared_info(size_t size)
 
 bool capture_init_shtex(struct shtex_data **data, HWND window,
 		uint32_t base_cx, uint32_t base_cy, uint32_t cx, uint32_t cy,
-		uint32_t format, bool flip, uint32_t handle)
+		uint32_t format, bool flip, uintptr_t handle)
 {
 	if (!init_shared_info(sizeof(struct shtex_data))) {
 		hlog("capture_init_shtex: Failed to initialize memory");
@@ -589,7 +589,7 @@ bool capture_init_shtex(struct shtex_data **data, HWND window,
 	}
 
 	*data = shmem_info;
-	(*data)->tex_handle = handle;
+	(*data)->tex_handle = (uint32_t)handle;
 
 	global_hook_info->window = (uint32_t)window;
 	global_hook_info->type = CAPTURE_TYPE_TEXTURE;

plugins/win-capture/graphics-hook/graphics-hook.h

@@ -49,7 +49,7 @@ extern bool rehook_gl(void);
 
 extern bool capture_init_shtex(struct shtex_data **data, HWND window,
 		uint32_t base_cx, uint32_t base_cy, uint32_t cx, uint32_t cy,
-		uint32_t format, bool flip, uint32_t handle);
+		uint32_t format, bool flip, uintptr_t handle);
 extern bool capture_init_shmem(struct shmem_data **data, HWND window,
 		uint32_t base_cx, uint32_t base_cy, uint32_t cx, uint32_t cy,
 		uint32_t pitch, uint32_t format, bool flip);