mirror of
https://github.com/OpenRCT2/OpenRCT2
synced 2025-12-21 14:53:02 +01:00
Refactor RCT2 interop code to new source
This commit is contained in:
@@ -228,6 +228,7 @@
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<ClCompile Include="src\rct1\S4Importer.cpp" />
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<ClCompile Include="src\rct1\S4Importer.cpp" />
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<ClCompile Include="src\rct1\Tables.cpp" />
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<ClCompile Include="src\rct1\Tables.cpp" />
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<ClCompile Include="src\rct2.c" />
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<ClCompile Include="src\rct2.c" />
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<ClCompile Include="src\rct2\interop.c" />
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<ClCompile Include="src\rct2\S6Exporter.cpp" />
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<ClCompile Include="src\rct2\S6Exporter.cpp" />
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<ClCompile Include="src\rct2\S6Importer.cpp" />
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<ClCompile Include="src\rct2\S6Importer.cpp" />
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<ClCompile Include="src\ride\cable_lift.c" />
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<ClCompile Include="src\ride\cable_lift.c" />
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@@ -544,6 +545,7 @@
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<ClInclude Include="src\rct1\Tables.h" />
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<ClInclude Include="src\rct1\Tables.h" />
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<ClInclude Include="src\rct1\S4Importer.h" />
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<ClInclude Include="src\rct1\S4Importer.h" />
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<ClInclude Include="src\rct2.h" />
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<ClInclude Include="src\rct2.h" />
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<ClInclude Include="src\rct2\interop.h" />
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<ClInclude Include="src\rct2\S6Exporter.h" />
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<ClInclude Include="src\rct2\S6Exporter.h" />
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<ClInclude Include="src\rct2\S6Importer.h" />
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<ClInclude Include="src\rct2\S6Importer.h" />
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<ClInclude Include="src\ride\cable_lift.h" />
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<ClInclude Include="src\ride\cable_lift.h" />
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@@ -19,6 +19,8 @@
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#ifndef NO_RCT2
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#ifndef NO_RCT2
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#include "common.h"
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enum {
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enum {
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X86_FLAG_CARRY = 1 << 0,
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X86_FLAG_CARRY = 1 << 0,
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X86_FLAG_PARITY = 1 << 2,
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X86_FLAG_PARITY = 1 << 2,
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199
src/openrct2.c
199
src/openrct2.c
@@ -19,7 +19,6 @@
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#include "config.h"
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#include "config.h"
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#include "editor.h"
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#include "editor.h"
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#include "game.h"
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#include "game.h"
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#include "hook.h"
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#include "interface/chat.h"
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#include "interface/chat.h"
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#include "interface/themes.h"
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#include "interface/themes.h"
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#include "interface/window.h"
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#include "interface/window.h"
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@@ -32,31 +31,15 @@
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#include "openrct2.h"
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#include "openrct2.h"
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#include "platform/crash.h"
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#include "platform/crash.h"
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#include "platform/platform.h"
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#include "platform/platform.h"
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#include "rct2/interop.h"
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#include "ride/ride.h"
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#include "ride/ride.h"
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#include "title.h"
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#include "title.h"
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#include "util/sawyercoding.h"
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#include "util/util.h"
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#include "util/util.h"
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#include "version.h"
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#include "version.h"
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#include "world/mapgen.h"
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#include "world/mapgen.h"
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#if defined(__unix__) || defined(__MACOSX__)
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#include <sys/mman.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#endif // defined(__unix__) || defined(__MACOSX__)
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int gExitCode;
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int gExitCode;
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#if defined(USE_MMAP) && (defined(__unix__) || defined(__MACOSX__)) && !defined(NO_RCT2)
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static int fdData = -1;
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#endif
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#if defined(__unix__) && !defined(NO_RCT2)
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static char * segments = (char *)(GOOD_PLACE_FOR_DATA_SEGMENT);
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#endif
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int gOpenRCT2StartupAction = STARTUP_ACTION_TITLE;
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int gOpenRCT2StartupAction = STARTUP_ACTION_TITLE;
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utf8 gOpenRCT2StartupActionPath[512] = { 0 };
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utf8 gOpenRCT2StartupActionPath[512] = { 0 };
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utf8 gExePath[MAX_PATH];
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utf8 gExePath[MAX_PATH];
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@@ -83,7 +66,6 @@ int _finished;
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static rct_xyz16 _spritelocations1[MAX_SPRITES], _spritelocations2[MAX_SPRITES];
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static rct_xyz16 _spritelocations1[MAX_SPRITES], _spritelocations2[MAX_SPRITES];
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static void openrct2_loop();
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static void openrct2_loop();
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static void openrct2_setup_rct2_hooks();
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void openrct2_write_full_version_info(utf8 *buffer, size_t bufferSize)
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void openrct2_write_full_version_info(utf8 *buffer, size_t bufferSize)
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{
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{
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@@ -206,7 +188,7 @@ bool openrct2_initialise()
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crash_init();
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crash_init();
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if (!openrct2_setup_rct2_segment()) {
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if (!rct2_interop_setup_segment()) {
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log_fatal("Unable to load RCT2 data sector");
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log_fatal("Unable to load RCT2 data sector");
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return false;
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return false;
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}
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}
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@@ -263,7 +245,7 @@ bool openrct2_initialise()
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title_sequences_set_default();
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title_sequences_set_default();
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title_sequences_load_presets();
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title_sequences_load_presets();
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openrct2_setup_rct2_hooks();
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rct2_interop_setup_hooks();
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if (!rct2_init())
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if (!rct2_init())
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return false;
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return false;
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@@ -357,10 +339,7 @@ void openrct2_dispose()
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#ifndef DISABLE_NETWORK
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#ifndef DISABLE_NETWORK
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EVP_MD_CTX_destroy(gHashCTX);
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EVP_MD_CTX_destroy(gHashCTX);
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#endif // DISABLE_NETWORK
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#endif // DISABLE_NETWORK
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#if defined(USE_MMAP) && (defined(__unix__) || defined(__MACOSX__)) && !defined(NO_RCT2)
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rct2_interop_dispose();
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munmap(segments, 12079104);
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close(fdData);
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#endif
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platform_free();
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platform_free();
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}
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}
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@@ -491,173 +470,3 @@ void openrct2_reset_object_tween_locations()
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_spritelocations1[i].z = _spritelocations2[i].z = get_sprite(i)->unknown.z;
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_spritelocations1[i].z = _spritelocations2[i].z = get_sprite(i)->unknown.z;
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}
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}
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}
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}
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static void openrct2_get_segment_data_path(char * buffer, size_t bufferSize)
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{
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platform_get_exe_path(buffer, bufferSize);
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safe_strcat_path(buffer, "openrct2_data", bufferSize);
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}
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/**
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* Loads RCT2's data model and remaps the addresses.
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* @returns true if the data integrity check succeeded, otherwise false.
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*/
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bool openrct2_setup_rct2_segment()
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{
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// OpenRCT2 on Linux and macOS is wired to have the original Windows PE sections loaded
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// necessary. Windows does not need to do this as OpenRCT2 runs as a DLL loaded from the Windows PE.
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int len = 0x01429000 - 0x8a4000; // 0xB85000, 12079104 bytes or around 11.5MB
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int err = 0;
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// in some configurations err and len may be unused
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UNUSED(err);
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UNUSED(len);
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#if defined(USE_MMAP) && (defined(__unix__) || defined(__MACOSX__)) && !defined(NO_RCT2)
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#define RDATA_OFFSET 0x004A4000
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#define DATASEG_OFFSET 0x005E2000
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// Using PE-bear I was able to figure out all the needed addresses to be filled.
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// There are three sections to be loaded: .rdata, .data and .text, plus another
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// one to be mapped: DATASEG.
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// Out of the three, two can simply be mmapped into memory, while the third one,
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// .data has a virtual size which is much completely different to its file size
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// (even when taking page-alignment into consideration)
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//
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// The sections are as follows (dump from gdb)
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// [0] 0x401000->0x6f7000 at 0x00001000: .text ALLOC LOAD READONLY CODE HAS_CONTENTS
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// [1] 0x6f7000->0x8a325d at 0x002f7000: CODESEG ALLOC LOAD READONLY CODE HAS_CONTENTS
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// [2] 0x8a4000->0x9a5894 at 0x004a4000: .rdata ALLOC LOAD DATA HAS_CONTENTS
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// [3] 0x9a6000->0x9e2000 at 0x005a6000: .data ALLOC LOAD DATA HAS_CONTENTS
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// [4] 0x1428000->0x14282bc at 0x005e2000: DATASEG ALLOC LOAD DATA HAS_CONTENTS
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// [5] 0x1429000->0x1452000 at 0x005e3000: .cms_t ALLOC LOAD READONLY CODE HAS_CONTENTS
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// [6] 0x1452000->0x14aaf3e at 0x0060c000: .cms_d ALLOC LOAD DATA HAS_CONTENTS
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// [7] 0x14ab000->0x14ac58a at 0x00665000: .idata ALLOC LOAD READONLY DATA HAS_CONTENTS
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// [8] 0x14ad000->0x14b512f at 0x00667000: .rsrc ALLOC LOAD DATA HAS_CONTENTS
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//
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// .data section, however, has virtual size of 0xA81C3C, and so
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// 0x9a6000 + 0xA81C3C = 0x1427C3C, which after alignment to page size becomes
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// 0x1428000, which can be seen as next section, DATASEG
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//
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// The data is now loaded into memory with a linker script, which proves to
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// be more reliable, as mallocs that happen before we reach segment setup
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// could have already taken the space we need.
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// TODO: UGLY, UGLY HACK!
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//off_t file_size = 6750208;
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utf8 segmentDataPath[MAX_PATH];
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openrct2_get_segment_data_path(segmentDataPath, sizeof(segmentDataPath));
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fdData = open(segmentDataPath, O_RDONLY);
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if (fdData < 0)
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{
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log_fatal("failed to load openrct2_data");
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exit(1);
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}
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log_warning("%p", GOOD_PLACE_FOR_DATA_SEGMENT);
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segments = mmap((void *)(GOOD_PLACE_FOR_DATA_SEGMENT), len, PROT_EXEC | PROT_READ | PROT_WRITE, MAP_PRIVATE, fdData, 0);
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log_warning("%p", segments);
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if ((uintptr_t)segments != GOOD_PLACE_FOR_DATA_SEGMENT) {
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perror("mmap");
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return false;
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}
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#endif // defined(USE_MMAP) && (defined(__unix__) || defined(__MACOSX__))
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#if defined(__unix__) && !defined(NO_RCT2)
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int pageSize = getpagesize();
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int numPages = (len + pageSize - 1) / pageSize;
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unsigned char *dummy = malloc(numPages);
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err = mincore((void *)segments, len, dummy);
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bool pagesMissing = false;
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if (err != 0)
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{
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err = errno;
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#ifdef __LINUX__
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// On Linux ENOMEM means all requested range is unmapped
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if (err != ENOMEM)
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{
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pagesMissing = true;
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perror("mincore");
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}
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#else
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pagesMissing = true;
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perror("mincore");
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#endif // __LINUX__
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} else {
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for (int i = 0; i < numPages; i++)
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{
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if (dummy[i] != 1)
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{
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pagesMissing = true;
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void *start = (void *)segments + i * pageSize;
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void *end = (void *)segments + (i + 1) * pageSize - 1;
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log_warning("required page %p - %p is not in memory!", start, end);
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}
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}
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}
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free(dummy);
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if (pagesMissing)
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{
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log_error("At least one of required pages was not found in memory. This can cause segfaults later on.");
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}
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#if !defined(USE_MMAP)
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// section: text
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err = mprotect((void *)0x401000, 0x8a4000 - 0x401000, PROT_READ | PROT_EXEC | PROT_WRITE);
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if (err != 0)
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{
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perror("mprotect");
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}
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#endif // !defined(USE_MMAP)
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// section: rw data
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err = mprotect((void *)segments, 0x01429000 - 0x8a4000, PROT_READ | PROT_WRITE);
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if (err != 0)
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|
||||||
{
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||||||
perror("mprotect");
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||||||
}
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#endif // defined(__unix__)
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|
||||||
|
|
||||||
#if defined(USE_MMAP) && defined(__WINDOWS__)
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segments = VirtualAlloc((void *)(GOOD_PLACE_FOR_DATA_SEGMENT), len, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);
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|
||||||
if ((uintptr_t)segments != GOOD_PLACE_FOR_DATA_SEGMENT) {
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|
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log_error("VirtualAlloc, segments = %p, GetLastError = 0x%x", segments, GetLastError());
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|
||||||
return false;
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|
||||||
}
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|
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utf8 segmentDataPath[MAX_PATH];
|
|
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openrct2_get_segment_data_path(segmentDataPath, sizeof(segmentDataPath));
|
|
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SDL_RWops * rw = SDL_RWFromFile(segmentDataPath, "rb");
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|
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if (rw == NULL)
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|
||||||
{
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|
||||||
log_error("failed to load file");
|
|
||||||
return false;
|
|
||||||
}
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|
||||||
if (SDL_RWread(rw, segments, len, 1) != 1) {
|
|
||||||
log_error("Unable to read chunk header!");
|
|
||||||
return false;
|
|
||||||
}
|
|
||||||
SDL_RWclose(rw);
|
|
||||||
#endif // defined(USE_MMAP) && defined(__WINDOWS__)
|
|
||||||
|
|
||||||
#if !defined(NO_RCT2) && defined(USE_MMAP)
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|
||||||
// Check that the expected data is at various addresses.
|
|
||||||
// Start at 0x9a6000, which is start of .data, to skip the region containing addresses to DLL
|
|
||||||
// calls, which can be changed by windows/wine loader.
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|
||||||
const uint32 c1 = sawyercoding_calculate_checksum((const uint8*)(segments + (uintptr_t)(0x009A6000 - 0x8a4000)), 0x009E0000 - 0x009A6000);
|
|
||||||
const uint32 c2 = sawyercoding_calculate_checksum((const uint8*)(segments + (uintptr_t)(0x01428000 - 0x8a4000)), 0x014282BC - 0x01428000);
|
|
||||||
const uint32 exp_c1 = 10114815;
|
|
||||||
const uint32 exp_c2 = 23564;
|
|
||||||
if (c1 != exp_c1 || c2 != exp_c2) {
|
|
||||||
log_warning("c1 = %u, expected %u, match %d", c1, exp_c1, c1 == exp_c1);
|
|
||||||
log_warning("c2 = %u, expected %u, match %d", c2, exp_c2, c2 == exp_c2);
|
|
||||||
return false;
|
|
||||||
}
|
|
||||||
#endif
|
|
||||||
return true;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Setup hooks to allow RCT2 to call OpenRCT2 functions instead.
|
|
||||||
*/
|
|
||||||
static void openrct2_setup_rct2_hooks()
|
|
||||||
{
|
|
||||||
// None for now
|
|
||||||
}
|
|
||||||
|
|||||||
@@ -61,7 +61,6 @@ void openrct2_launch();
|
|||||||
void openrct2_dispose();
|
void openrct2_dispose();
|
||||||
void openrct2_finish();
|
void openrct2_finish();
|
||||||
void openrct2_reset_object_tween_locations();
|
void openrct2_reset_object_tween_locations();
|
||||||
bool openrct2_setup_rct2_segment();
|
|
||||||
|
|
||||||
int cmdline_run(const char **argv, int argc);
|
int cmdline_run(const char **argv, int argc);
|
||||||
|
|
||||||
|
|||||||
223
src/rct2/interop.c
Normal file
223
src/rct2/interop.c
Normal file
@@ -0,0 +1,223 @@
|
|||||||
|
#pragma region Copyright (c) 2014-2016 OpenRCT2 Developers
|
||||||
|
/*****************************************************************************
|
||||||
|
* OpenRCT2, an open source clone of Roller Coaster Tycoon 2.
|
||||||
|
*
|
||||||
|
* OpenRCT2 is the work of many authors, a full list can be found in contributors.md
|
||||||
|
* For more information, visit https://github.com/OpenRCT2/OpenRCT2
|
||||||
|
*
|
||||||
|
* OpenRCT2 is free software: you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation, either version 3 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* A full copy of the GNU General Public License can be found in licence.txt
|
||||||
|
*****************************************************************************/
|
||||||
|
#pragma endregion
|
||||||
|
|
||||||
|
#include "../common.h"
|
||||||
|
|
||||||
|
#if defined(__WINDOWS__)
|
||||||
|
#define WIN32_LEAN_AND_MEAN
|
||||||
|
#include <windows.h>
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#if defined(__unix__) || defined(__MACOSX__)
|
||||||
|
#include <sys/mman.h>
|
||||||
|
#include <errno.h>
|
||||||
|
#include <fcntl.h>
|
||||||
|
#include <sys/types.h>
|
||||||
|
#include <sys/stat.h>
|
||||||
|
#include <unistd.h>
|
||||||
|
#endif // defined(__unix__) || defined(__MACOSX__)
|
||||||
|
|
||||||
|
#include "../addresses.h"
|
||||||
|
#include "../hook.h"
|
||||||
|
#include "../openrct2.h"
|
||||||
|
#include "../util/sawyercoding.h"
|
||||||
|
#include "../util/util.h"
|
||||||
|
#include "interop.h"
|
||||||
|
|
||||||
|
#if defined(USE_MMAP) && (defined(__unix__) || defined(__MACOSX__)) && !defined(NO_RCT2)
|
||||||
|
static int fdData = -1;
|
||||||
|
#endif
|
||||||
|
#if !defined(NO_RCT2)
|
||||||
|
static char * segments = (char *)(GOOD_PLACE_FOR_DATA_SEGMENT);
|
||||||
|
#endif
|
||||||
|
|
||||||
|
static void rct2_interop_get_segment_data_path(char * buffer, size_t bufferSize)
|
||||||
|
{
|
||||||
|
platform_get_exe_path(buffer, bufferSize);
|
||||||
|
safe_strcat_path(buffer, "openrct2_data", bufferSize);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Loads RCT2's data model and remaps the addresses.
|
||||||
|
* @returns true if the data integrity check succeeded, otherwise false.
|
||||||
|
*/
|
||||||
|
bool rct2_interop_setup_segment()
|
||||||
|
{
|
||||||
|
// OpenRCT2 on Linux and macOS is wired to have the original Windows PE sections loaded
|
||||||
|
// necessary. Windows does not need to do this as OpenRCT2 runs as a DLL loaded from the Windows PE.
|
||||||
|
int len = 0x01429000 - 0x8a4000; // 0xB85000, 12079104 bytes or around 11.5MB
|
||||||
|
int err = 0;
|
||||||
|
// in some configurations err and len may be unused
|
||||||
|
UNUSED(err);
|
||||||
|
UNUSED(len);
|
||||||
|
#if defined(USE_MMAP) && (defined(__unix__) || defined(__MACOSX__)) && !defined(NO_RCT2)
|
||||||
|
#define RDATA_OFFSET 0x004A4000
|
||||||
|
#define DATASEG_OFFSET 0x005E2000
|
||||||
|
|
||||||
|
// Using PE-bear I was able to figure out all the needed addresses to be filled.
|
||||||
|
// There are three sections to be loaded: .rdata, .data and .text, plus another
|
||||||
|
// one to be mapped: DATASEG.
|
||||||
|
// Out of the three, two can simply be mmapped into memory, while the third one,
|
||||||
|
// .data has a virtual size which is much completely different to its file size
|
||||||
|
// (even when taking page-alignment into consideration)
|
||||||
|
//
|
||||||
|
// The sections are as follows (dump from gdb)
|
||||||
|
// [0] 0x401000->0x6f7000 at 0x00001000: .text ALLOC LOAD READONLY CODE HAS_CONTENTS
|
||||||
|
// [1] 0x6f7000->0x8a325d at 0x002f7000: CODESEG ALLOC LOAD READONLY CODE HAS_CONTENTS
|
||||||
|
// [2] 0x8a4000->0x9a5894 at 0x004a4000: .rdata ALLOC LOAD DATA HAS_CONTENTS
|
||||||
|
// [3] 0x9a6000->0x9e2000 at 0x005a6000: .data ALLOC LOAD DATA HAS_CONTENTS
|
||||||
|
// [4] 0x1428000->0x14282bc at 0x005e2000: DATASEG ALLOC LOAD DATA HAS_CONTENTS
|
||||||
|
// [5] 0x1429000->0x1452000 at 0x005e3000: .cms_t ALLOC LOAD READONLY CODE HAS_CONTENTS
|
||||||
|
// [6] 0x1452000->0x14aaf3e at 0x0060c000: .cms_d ALLOC LOAD DATA HAS_CONTENTS
|
||||||
|
// [7] 0x14ab000->0x14ac58a at 0x00665000: .idata ALLOC LOAD READONLY DATA HAS_CONTENTS
|
||||||
|
// [8] 0x14ad000->0x14b512f at 0x00667000: .rsrc ALLOC LOAD DATA HAS_CONTENTS
|
||||||
|
//
|
||||||
|
// .data section, however, has virtual size of 0xA81C3C, and so
|
||||||
|
// 0x9a6000 + 0xA81C3C = 0x1427C3C, which after alignment to page size becomes
|
||||||
|
// 0x1428000, which can be seen as next section, DATASEG
|
||||||
|
//
|
||||||
|
// The data is now loaded into memory with a linker script, which proves to
|
||||||
|
// be more reliable, as mallocs that happen before we reach segment setup
|
||||||
|
// could have already taken the space we need.
|
||||||
|
|
||||||
|
// TODO: UGLY, UGLY HACK!
|
||||||
|
//off_t file_size = 6750208;
|
||||||
|
|
||||||
|
utf8 segmentDataPath[MAX_PATH];
|
||||||
|
rct2_interop_get_segment_data_path(segmentDataPath, sizeof(segmentDataPath));
|
||||||
|
fdData = open(segmentDataPath, O_RDONLY);
|
||||||
|
if (fdData < 0)
|
||||||
|
{
|
||||||
|
log_fatal("failed to load openrct2_data");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
log_warning("%p", GOOD_PLACE_FOR_DATA_SEGMENT);
|
||||||
|
segments = mmap((void *)(GOOD_PLACE_FOR_DATA_SEGMENT), len, PROT_EXEC | PROT_READ | PROT_WRITE, MAP_PRIVATE, fdData, 0);
|
||||||
|
log_warning("%p", segments);
|
||||||
|
if ((uintptr_t)segments != GOOD_PLACE_FOR_DATA_SEGMENT) {
|
||||||
|
perror("mmap");
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
#endif // defined(USE_MMAP) && (defined(__unix__) || defined(__MACOSX__))
|
||||||
|
|
||||||
|
#if defined(__unix__) && !defined(NO_RCT2)
|
||||||
|
int pageSize = getpagesize();
|
||||||
|
int numPages = (len + pageSize - 1) / pageSize;
|
||||||
|
unsigned char *dummy = malloc(numPages);
|
||||||
|
|
||||||
|
err = mincore((void *)segments, len, dummy);
|
||||||
|
bool pagesMissing = false;
|
||||||
|
if (err != 0)
|
||||||
|
{
|
||||||
|
err = errno;
|
||||||
|
#ifdef __LINUX__
|
||||||
|
// On Linux ENOMEM means all requested range is unmapped
|
||||||
|
if (err != ENOMEM)
|
||||||
|
{
|
||||||
|
pagesMissing = true;
|
||||||
|
perror("mincore");
|
||||||
|
}
|
||||||
|
#else
|
||||||
|
pagesMissing = true;
|
||||||
|
perror("mincore");
|
||||||
|
#endif // __LINUX__
|
||||||
|
} else {
|
||||||
|
for (int i = 0; i < numPages; i++)
|
||||||
|
{
|
||||||
|
if (dummy[i] != 1)
|
||||||
|
{
|
||||||
|
pagesMissing = true;
|
||||||
|
void *start = (void *)segments + i * pageSize;
|
||||||
|
void *end = (void *)segments + (i + 1) * pageSize - 1;
|
||||||
|
log_warning("required page %p - %p is not in memory!", start, end);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
free(dummy);
|
||||||
|
if (pagesMissing)
|
||||||
|
{
|
||||||
|
log_error("At least one of required pages was not found in memory. This can cause segfaults later on.");
|
||||||
|
}
|
||||||
|
#if !defined(USE_MMAP)
|
||||||
|
// section: text
|
||||||
|
err = mprotect((void *)0x401000, 0x8a4000 - 0x401000, PROT_READ | PROT_EXEC | PROT_WRITE);
|
||||||
|
if (err != 0)
|
||||||
|
{
|
||||||
|
perror("mprotect");
|
||||||
|
}
|
||||||
|
#endif // !defined(USE_MMAP)
|
||||||
|
// section: rw data
|
||||||
|
err = mprotect((void *)segments, 0x01429000 - 0x8a4000, PROT_READ | PROT_WRITE);
|
||||||
|
if (err != 0)
|
||||||
|
{
|
||||||
|
perror("mprotect");
|
||||||
|
}
|
||||||
|
#endif // defined(__unix__)
|
||||||
|
|
||||||
|
#if defined(USE_MMAP) && defined(__WINDOWS__)
|
||||||
|
segments = VirtualAlloc((void *)(GOOD_PLACE_FOR_DATA_SEGMENT), len, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);
|
||||||
|
if ((uintptr_t)segments != GOOD_PLACE_FOR_DATA_SEGMENT) {
|
||||||
|
log_error("VirtualAlloc, segments = %p, GetLastError = 0x%x", segments, GetLastError());
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
utf8 segmentDataPath[MAX_PATH];
|
||||||
|
rct2_interop_get_segment_data_path(segmentDataPath, sizeof(segmentDataPath));
|
||||||
|
SDL_RWops * rw = SDL_RWFromFile(segmentDataPath, "rb");
|
||||||
|
if (rw == NULL)
|
||||||
|
{
|
||||||
|
log_error("failed to load file");
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
if (SDL_RWread(rw, segments, len, 1) != 1) {
|
||||||
|
log_error("Unable to read chunk header!");
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
SDL_RWclose(rw);
|
||||||
|
#endif // defined(USE_MMAP) && defined(__WINDOWS__)
|
||||||
|
|
||||||
|
#if !defined(NO_RCT2) && defined(USE_MMAP)
|
||||||
|
// Check that the expected data is at various addresses.
|
||||||
|
// Start at 0x9a6000, which is start of .data, to skip the region containing addresses to DLL
|
||||||
|
// calls, which can be changed by windows/wine loader.
|
||||||
|
const uint32 c1 = sawyercoding_calculate_checksum((const uint8*)(segments + (uintptr_t)(0x009A6000 - 0x8a4000)), 0x009E0000 - 0x009A6000);
|
||||||
|
const uint32 c2 = sawyercoding_calculate_checksum((const uint8*)(segments + (uintptr_t)(0x01428000 - 0x8a4000)), 0x014282BC - 0x01428000);
|
||||||
|
const uint32 exp_c1 = 10114815;
|
||||||
|
const uint32 exp_c2 = 23564;
|
||||||
|
if (c1 != exp_c1 || c2 != exp_c2) {
|
||||||
|
log_warning("c1 = %u, expected %u, match %d", c1, exp_c1, c1 == exp_c1);
|
||||||
|
log_warning("c2 = %u, expected %u, match %d", c2, exp_c2, c2 == exp_c2);
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Setup hooks to allow RCT2 to call OpenRCT2 functions instead.
|
||||||
|
*/
|
||||||
|
void rct2_interop_setup_hooks()
|
||||||
|
{
|
||||||
|
// None for now
|
||||||
|
}
|
||||||
|
|
||||||
|
void rct2_interop_dispose()
|
||||||
|
{
|
||||||
|
#if defined(USE_MMAP) && (defined(__unix__) || defined(__MACOSX__)) && !defined(NO_RCT2)
|
||||||
|
munmap(segments, 12079104);
|
||||||
|
close(fdData);
|
||||||
|
#endif
|
||||||
|
}
|
||||||
24
src/rct2/interop.h
Normal file
24
src/rct2/interop.h
Normal file
@@ -0,0 +1,24 @@
|
|||||||
|
#pragma region Copyright (c) 2014-2016 OpenRCT2 Developers
|
||||||
|
/*****************************************************************************
|
||||||
|
* OpenRCT2, an open source clone of Roller Coaster Tycoon 2.
|
||||||
|
*
|
||||||
|
* OpenRCT2 is the work of many authors, a full list can be found in contributors.md
|
||||||
|
* For more information, visit https://github.com/OpenRCT2/OpenRCT2
|
||||||
|
*
|
||||||
|
* OpenRCT2 is free software: you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation, either version 3 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* A full copy of the GNU General Public License can be found in licence.txt
|
||||||
|
*****************************************************************************/
|
||||||
|
#pragma endregion
|
||||||
|
|
||||||
|
#ifndef _RCT2_INTEROP_H_
|
||||||
|
#define _RCT2_INTEROP_H_
|
||||||
|
|
||||||
|
bool rct2_interop_setup_segment();
|
||||||
|
void rct2_interop_setup_hooks();
|
||||||
|
void rct2_interop_dispose();
|
||||||
|
|
||||||
|
#endif
|
||||||
@@ -17,7 +17,6 @@
|
|||||||
<ProjectGuid>{57E60BA1-FB76-4316-909E-C1449C142327}</ProjectGuid>
|
<ProjectGuid>{57E60BA1-FB76-4316-909E-C1449C142327}</ProjectGuid>
|
||||||
<RootNamespace>testpaint</RootNamespace>
|
<RootNamespace>testpaint</RootNamespace>
|
||||||
</PropertyGroup>
|
</PropertyGroup>
|
||||||
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
|
|
||||||
<Import Project="$(SolutionDir)\openrct2.common.props" />
|
<Import Project="$(SolutionDir)\openrct2.common.props" />
|
||||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
|
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
|
||||||
<ConfigurationType>DynamicLibrary</ConfigurationType>
|
<ConfigurationType>DynamicLibrary</ConfigurationType>
|
||||||
@@ -30,18 +29,6 @@
|
|||||||
<WholeProgramOptimization>true</WholeProgramOptimization>
|
<WholeProgramOptimization>true</WholeProgramOptimization>
|
||||||
<CharacterSet>MultiByte</CharacterSet>
|
<CharacterSet>MultiByte</CharacterSet>
|
||||||
</PropertyGroup>
|
</PropertyGroup>
|
||||||
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
|
|
||||||
<ImportGroup Label="ExtensionSettings">
|
|
||||||
</ImportGroup>
|
|
||||||
<ImportGroup Label="Shared">
|
|
||||||
</ImportGroup>
|
|
||||||
<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
|
|
||||||
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
|
|
||||||
</ImportGroup>
|
|
||||||
<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
|
|
||||||
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
|
|
||||||
</ImportGroup>
|
|
||||||
<PropertyGroup Label="UserMacros" />
|
|
||||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
|
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
|
||||||
<OutDir>$(SolutionDir)bin\testpaint\</OutDir>
|
<OutDir>$(SolutionDir)bin\testpaint\</OutDir>
|
||||||
<IntDir>$(SolutionDir)obj\$(ProjectName)\$(Configuration)\</IntDir>
|
<IntDir>$(SolutionDir)obj\$(ProjectName)\$(Configuration)\</IntDir>
|
||||||
|
|||||||
Reference in New Issue
Block a user