tr2: port SE_ReadAppSettings

docs/tr2/progress.txt

@@ -4082,7 +4082,7 @@ typedef enum {
 0x004523C0  0x004E  -R      bool __cdecl OpenGameRegistryKey(LPCTSTR key);
 0x00452410  0x0005  -R      LONG __cdecl CloseGameRegistryKey(void);
 0x00452420  0x0262  -R      bool __cdecl SE_WriteAppSettings(APP_SETTINGS *settings);
-0x00452690  0x0348  -R      int32_t __cdecl SE_ReadAppSettings(APP_SETTINGS *settings);
+0x00452690  0x0348  +R      int32_t __cdecl SE_ReadAppSettings(APP_SETTINGS *settings);
 0x004529E0  0x00D7  -R      bool __cdecl SE_GraphicsTestStart(void);
 0x00452AB0  0x0014  -R      void __cdecl SE_GraphicsTestFinish(void);
 0x00452AD0  0x0003  -R      int32_t __cdecl SE_GraphicsTestExecute(void);

src/tr2/decomp/decomp.h

@@ -211,3 +211,4 @@ BOOL __cdecl S_LoadLevelFile(
     const char *file_name, int32_t level_num, GAMEFLOW_LEVEL_TYPE level_type);
 void __cdecl S_UnloadLevelFile(void);
 BOOL __cdecl S_ReloadLevelGraphics(bool reload_palettes, bool reload_tex_pages);
+int32_t __cdecl SE_ReadAppSettings(APP_SETTINGS *settings);

src/tr2/decomp/decomp2.c

@@ -6,6 +6,7 @@
 #include "global/funcs.h"
 #include "global/vars.h"
 
+#include <libtrx/utils.h>
 #include <libtrx/virtual_file.h>
 
 int32_t __cdecl CreateTexturePage(
@@ -601,3 +602,91 @@ BOOL __cdecl S_ReloadLevelGraphics(
 
     return true;
 }
+
+int32_t __cdecl SE_ReadAppSettings(APP_SETTINGS *const settings)
+{
+    if (!OpenGameRegistryKey("System")) {
+        return 0;
+    }
+
+    bool rc;
+    GUID value;
+    rc = GetRegistryGuidValue("PreferredDisplayAdapterGUID", &value, 0);
+    settings->preferred_display_adapter =
+        WinVidGetDisplayAdapter(rc ? &value : 0);
+
+    settings->preferred_sound_adapter = NULL;
+    settings->preferred_joystick = NULL;
+
+    DISPLAY_MODE dm;
+    GetRegistryDwordValue(
+        "RenderMode", (DWORD *)&settings->render_mode, RM_HARDWARE);
+    GetRegistryBoolValue("Dither", &settings->dither, false);
+    GetRegistryBoolValue("ZBuffer", &settings->zbuffer, true);
+    GetRegistryBoolValue(
+        "BilinearFiltering", &settings->bilinear_filtering, true);
+    GetRegistryBoolValue("TripleBuffering", &settings->triple_buffering, false);
+    GetRegistryBoolValue("FullScreen", &settings->fullscreen, true);
+    GetRegistryDwordValue(
+        "WindowWidth", (DWORD *)&settings->window_width, 1280);
+    GetRegistryDwordValue(
+        "WindowHeight", (DWORD *)&settings->window_height, 720);
+    GetRegistryDwordValue(
+        "AspectMode", (DWORD *)&settings->aspect_mode, AM_4_3);
+    GetRegistryDwordValue("FullScreenWidth", (DWORD *)&dm.width, 1280);
+    GetRegistryDwordValue("FullScreenHeight", (DWORD *)&dm.height, 720);
+    GetRegistryDwordValue("FullScreenBPP", (DWORD *)&dm.bpp, 16);
+    GetRegistryBoolValue("SoundEnabled", &settings->sound_enabled, true);
+    GetRegistryBoolValue("LaraMic", &settings->lara_mic, false);
+    GetRegistryBoolValue("JoystickEnabled", &settings->joystick_enabled, true);
+    GetRegistryBoolValue(
+        "Disable16BitTextures", &settings->disable_16bit_textures, false);
+    GetRegistryBoolValue(
+        "DontSortPrimitives", &settings->dont_sort_primitives, false);
+    GetRegistryDwordValue(
+        "TexelAdjustMode", (DWORD *)&settings->texel_adjust_mode, TAM_ALWAYS);
+    GetRegistryDwordValue(
+        "NearestAdjustment", (DWORD *)&settings->nearest_adjustment, 16);
+    GetRegistryDwordValue(
+        "LinearAdjustment", (DWORD *)&settings->linear_adjustment, 128);
+    GetRegistryBoolValue("FlipBroken", &settings->flip_broken, false);
+
+    if (settings->render_mode != RM_HARDWARE
+        && settings->render_mode != RM_SOFTWARE) {
+        settings->render_mode = RM_SOFTWARE;
+    }
+    if (settings->aspect_mode != AM_ANY && settings->aspect_mode != AM_16_9) {
+        settings->aspect_mode = AM_4_3;
+    }
+    if (settings->texel_adjust_mode != TAM_DISABLED
+        && settings->texel_adjust_mode != TAM_BILINEAR_ONLY) {
+        settings->texel_adjust_mode = TAM_ALWAYS;
+    }
+    CLAMP(settings->nearest_adjustment, 0, 256);
+    CLAMP(settings->linear_adjustment, 0, 256);
+
+    GetRegistryBoolValue(
+        "PerspectiveCorrect", &settings->perspective_correct,
+        settings->render_mode != RM_SOFTWARE);
+
+    DISPLAY_MODE_LIST *disp_mode_list =
+        &settings->preferred_display_adapter->body.hw_disp_mode_list;
+    if (settings->render_mode == RM_SOFTWARE) {
+        dm.bpp = 8;
+        disp_mode_list =
+            &settings->preferred_display_adapter->body.sw_disp_mode_list;
+    }
+    dm.vga = VGA_NO_VGA;
+
+    const DISPLAY_MODE_NODE *head = disp_mode_list->head;
+    while (head != NULL) {
+        if (!CompareVideoModes(&head->body, &dm)) {
+            break;
+        }
+        head = head->next;
+    }
+    settings->video_mode = head;
+
+    CloseGameRegistryKey();
+    return IsNewRegistryKeyCreated() ? 2 : 1;
+}

src/tr2/global/funcs.h

@@ -153,7 +153,6 @@
 #define OpenGameRegistryKey ((bool __cdecl (*)(LPCTSTR key))0x004523C0)
 #define CloseGameRegistryKey ((LONG __cdecl (*)(void))0x00452410)
 #define SE_WriteAppSettings ((bool __cdecl (*)(APP_SETTINGS *settings))0x00452420)
-#define SE_ReadAppSettings ((int32_t __cdecl (*)(APP_SETTINGS *settings))0x00452690)
 #define SE_GraphicsTestStart ((bool __cdecl (*)(void))0x004529E0)
 #define SE_GraphicsTestFinish ((void __cdecl (*)(void))0x00452AB0)
 #define SE_GraphicsTestExecute ((int32_t __cdecl (*)(void))0x00452AD0)

src/tr2/inject_exec.c

@@ -307,6 +307,7 @@ static void M_DecompGeneral(const bool enable)
     INJECT(enable, 0x00456430, EnumerateTextureFormats);
     INJECT(enable, 0x00456460, CleanupTextures);
     INJECT(enable, 0x00456470, InitTextures);
+    INJECT(enable, 0x00452690, SE_ReadAppSettings);
 }
 
 static void M_DecompFMV(const bool enable)