Building using MSVC works

CMakeLists.txt

@@ -126,9 +126,10 @@ set(CMAKE_BUILD_TYPE Release)
 if(MINGW)
     add_definitions("-Wa,-mbig-obj")
 endif(MINGW)
+
 if (MSVC)
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /bigobj")
+    set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /DNDEBUG /O2 /MT")
-    set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} /MTd")
+    set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} /D_DEBUG /Od /MTd")
 endif()
 
 foreach (family ${FAMILIES})

ice40/arch.cc

@@ -124,8 +124,16 @@ PortPin Arch::portPinFromId(IdString type) const
 
 static const ChipInfoPOD *get_chip_info(const RelPtr<ChipInfoPOD> *ptr) { return ptr->get(); }
 
+#if defined(_MSC_VER)
+void load_chipdb();
+#endif
+
 Arch::Arch(ArchArgs args) : args(args)
 {
+#if defined(_MSC_VER)
+    load_chipdb();
+#endif
+
 #ifdef ICE40_HX1K_ONLY
     if (args.type == ArchArgs::HX1K) {
         chip_info = get_chip_info(reinterpret_cast<const RelPtr<ChipInfoPOD> *>(chipdb_blob_1k));

ice40/arch.h

@@ -185,10 +185,17 @@ struct ChipInfoPOD
     RelPtr<PackageInfoPOD> packages_data;
 });
 
+#if defined(_MSC_VER)
+extern const char* chipdb_blob_384;
+extern const char* chipdb_blob_1k;
+extern const char* chipdb_blob_5k;
+extern const char* chipdb_blob_8k;
+#else
 extern const char chipdb_blob_384[];
 extern const char chipdb_blob_1k[];
 extern const char chipdb_blob_5k[];
 extern const char chipdb_blob_8k[];
+#endif
 
 /************************ End of chipdb section. ************************/
 

ice40/family.cmake

@@ -8,13 +8,32 @@ else()
 endif()
 
 set(DB_PY ${CMAKE_CURRENT_SOURCE_DIR}/ice40/chipdb.py)
+
+set(ICEBOX_ROOT "/usr/local/share/icebox" CACHE STRING "icebox location root")
 file(MAKE_DIRECTORY ice40/chipdbs/)
 add_library(ice40_chipdb OBJECT ice40/chipdbs/)
-target_compile_options(ice40_chipdb PRIVATE -g0 -O0 -w)
 target_compile_definitions(ice40_chipdb PRIVATE NEXTPNR_NAMESPACE=nextpnr_${family})
 target_include_directories(ice40_chipdb PRIVATE ${family}/)
-set(ICEBOX_ROOT "/usr/local/share/icebox" CACHE STRING "icebox location root")
+if (MSVC)
-foreach (dev ${devices})
+    target_sources(ice40_chipdb PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/ice40/resource/embed.cc)
+    set_source_files_properties(${CMAKE_CURRENT_SOURCE_DIR}/ice40/resources/chipdb.rc PROPERTIES LANGUAGE RC)
+    foreach (dev ${devices})
+        set(DEV_TXT_DB ${ICEBOX_ROOT}/chipdb-${dev}.txt)
+        set(DEV_CC_DB ${CMAKE_CURRENT_SOURCE_DIR}/ice40/chipdbs/chipdb-${dev}.bin)
+        set(DEV_PORTS_INC ${CMAKE_CURRENT_SOURCE_DIR}/ice40/portpins.inc)
+        add_custom_command(OUTPUT ${DEV_CC_DB}
+                COMMAND python3 ${DB_PY} -b -p ${DEV_PORTS_INC} ${DEV_TXT_DB} > ${DEV_CC_DB}
+                DEPENDS ${DEV_TXT_DB} ${DB_PY}
+                )
+        target_sources(ice40_chipdb PRIVATE ${DEV_CC_DB})
+        set_source_files_properties(${DEV_CC_DB} PROPERTIES HEADER_FILE_ONLY TRUE)
+        foreach (target ${family_targets})
+            target_sources(${target} PRIVATE $<TARGET_OBJECTS:ice40_chipdb> ${CMAKE_CURRENT_SOURCE_DIR}/ice40/resource/chipdb.rc)
+        endforeach (target)
+    endforeach (dev)
+else()
+    target_compile_options(ice40_chipdb PRIVATE -g0 -O0 -w)
+    foreach (dev ${devices})
         set(DEV_TXT_DB ${ICEBOX_ROOT}/chipdb-${dev}.txt)
         set(DEV_CC_DB ${CMAKE_CURRENT_SOURCE_DIR}/ice40/chipdbs/chipdb-${dev}.cc)
         set(DEV_PORTS_INC ${CMAKE_CURRENT_SOURCE_DIR}/ice40/portpins.inc)
@@ -27,4 +46,5 @@ foreach (dev ${devices})
         foreach (target ${family_targets})
             target_sources(${target} PRIVATE $<TARGET_OBJECTS:ice40_chipdb>)
         endforeach (target)
-endforeach (dev)
+    endforeach (dev)
+endif()

ice40/resource/chipdb.rc

@@ -0,0 +1,6 @@
+#include "resource.h"
+
+IDR_CHIPDB_384 BINARYFILE "..\chipdbs\chipdb-384.bin"
+IDR_CHIPDB_1K  BINARYFILE "..\chipdbs\chipdb-1k.bin"
+IDR_CHIPDB_5K  BINARYFILE "..\chipdbs\chipdb-5k.bin"
+IDR_CHIPDB_8K  BINARYFILE "..\chipdbs\chipdb-8k.bin"

ice40/resource/embed.cc

@@ -0,0 +1,31 @@
+#include <windows.h>
+#include <cstdio>
+#include "nextpnr.h"
+#include "resource.h"
+
+NEXTPNR_NAMESPACE_BEGIN
+
+const char* chipdb_blob_384;
+const char* chipdb_blob_1k;
+const char* chipdb_blob_5k;
+const char* chipdb_blob_8k;
+
+const char* LoadFileInResource(int name, int type, DWORD& size)
+{
+    HMODULE handle = ::GetModuleHandle(NULL);
+    HRSRC rc = ::FindResource(handle, MAKEINTRESOURCE(name),
+        MAKEINTRESOURCE(type));
+    HGLOBAL rcData = ::LoadResource(handle, rc);
+    size = ::SizeofResource(handle, rc);
+    return static_cast<const char*>(::LockResource(rcData));
+}
+void load_chipdb()
+{
+    DWORD size = 0;
+    chipdb_blob_384 = LoadFileInResource(IDR_CHIPDB_384, BINARYFILE, size);
+    chipdb_blob_1k  = LoadFileInResource(IDR_CHIPDB_1K, BINARYFILE, size);
+    chipdb_blob_5k  = LoadFileInResource(IDR_CHIPDB_5K, BINARYFILE, size);
+    chipdb_blob_8k  = LoadFileInResource(IDR_CHIPDB_8K, BINARYFILE, size);
+}
+
+NEXTPNR_NAMESPACE_END

ice40/resource/resource.h

@@ -0,0 +1,5 @@
+#define BINARYFILE        256
+#define IDR_CHIPDB_384    101
+#define IDR_CHIPDB_1K     102
+#define IDR_CHIPDB_5K     103
+#define IDR_CHIPDB_8K     104