add xinput

Makefile

@@ -24,10 +24,11 @@ CFLAGS += -Wno-unknown-pragmas
 CFLAGS += -I./include
 CFLAGS += -municode
 LDFLAGS += -municode
-LIBS += -ld3d10
 
 CXXFLAGS += -fno-exceptions
 
+LIBS = -ld3d10
+
 all: $(BUILD_TYPE)/d3d10.exe
 
 $(BUILD_TYPE)/%.fxo: src/%.fx
@@ -60,6 +61,7 @@ OBJS = \
 	$(BUILD_TYPE)/main.obj \
 	$(BUILD_TYPE)/print.obj \
 	$(BUILD_TYPE)/render_state.obj \
+	$(BUILD_TYPE)/input.obj \
 	$(BUILD_TYPE)/main.res
 
 $(BUILD_TYPE)/d3d10.exe: $(OBJS)

include/input.hpp

@@ -0,0 +1,20 @@
+#pragma once
+#ifndef _INPUT_HPP_
+#define _INPUT_HPP_
+
+HRESULT InitInput(HINSTANCE hInstance);
+void UpdateInput();
+
+struct Joystate {
+  int buttons;
+  float triggerL;
+  float triggerR;
+  float thumbLX;
+  float thumbLY;
+  float thumbRX;
+  float thumbRY;
+};
+
+extern Joystate g_Joystate;
+
+#endif

src/input.cpp

@@ -0,0 +1,68 @@
+#include <windows.h>
+#include <assert.h>
+#include <XInput.h>
+
+#include "print.hpp"
+#include "input.hpp"
+
+Joystate g_Joystate;
+
+typedef DWORD (WINAPI * lpXInputGetCapabilities)(DWORD, DWORD, XINPUT_CAPABILITIES *);
+typedef DWORD (WINAPI * lpXInputGetState)(DWORD, XINPUT_STATE *);
+
+//lpXInputGetCapabilities g_XInputGetCapabilities;
+lpXInputGetState g_XInputGetState;
+
+HRESULT InitInput(HINSTANCE hInstance)
+{
+  const char * libs[] = {
+    "xinput1_4.dll",
+    "xinput1_3.dll",
+    "xinput9_1_0.dll",
+    "xinput1_2.dll",
+    "xinput1_1.dll",
+  };
+  const int libs_length = (sizeof (libs)) / (sizeof (libs[0]));
+
+  HMODULE hLib;
+  for (int i = 0; i < libs_length; i++) {
+    hLib = LoadLibraryA(libs[i]);
+    if (hLib != NULL) {
+      print("using xinput: %s\n", libs[i]);
+      break;
+    }
+  }
+  if (hLib == NULL) {
+    print("no xinput module found\n");
+    return E_FAIL;
+  }
+
+  //g_XInputGetCapabilities = (lpXInputGetCapabilities)GetProcAddress(hLib, "XInputGetCapabilities");
+  //assert(g_XInputGetCapabilities != NULL);
+  g_XInputGetState = (lpXInputGetState)GetProcAddress(hLib, "XInputGetState");
+  assert(g_XInputGetState != NULL);
+
+  return S_OK;
+}
+
+void UpdateInput()
+{
+  XINPUT_STATE state;
+  for (DWORD i = 0; i < 4; i++) {
+    DWORD ret = g_XInputGetState(i, &state);
+    if (ret != ERROR_SUCCESS) {
+      continue;
+    }
+    break;
+  }
+
+  const float trigger = 1.0f / 255.0f;
+  const float thumb = 1.0f / 32768.0f;
+  g_Joystate.buttons = state.Gamepad.wButtons;
+  g_Joystate.triggerL = ((float)state.Gamepad.bLeftTrigger) * trigger;
+  g_Joystate.triggerR = ((float)state.Gamepad.bRightTrigger) * trigger;
+  g_Joystate.thumbLX = ((float)state.Gamepad.sThumbLX) * thumb;
+  g_Joystate.thumbLY = ((float)state.Gamepad.sThumbLY) * thumb;
+  g_Joystate.thumbRX = ((float)state.Gamepad.sThumbRX) * thumb;
+  g_Joystate.thumbRY = ((float)state.Gamepad.sThumbRY) * thumb;
+}

src/main.cpp

@@ -8,6 +8,7 @@
 #include "globals.hpp"
 #include "print.hpp"
 #include "render_state.hpp"
+#include "input.hpp"
 
 #include "gltf.hpp"
 #include "gltf_instance.hpp"
@@ -168,6 +169,11 @@ int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPWSTR lpCmdLi
 
   InitializeNodeInstances();
 
+  if (FAILED(InitInput(hInstance))) {
+    print("InitInput\n");
+    return 0;
+  }
+
   MSG msg = {};
   while (msg.message != WM_QUIT) {
     if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) {
@@ -189,6 +195,7 @@ int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPWSTR lpCmdLi
       TranslateMessage(&msg);
       DispatchMessage(&msg);
     } else {
+      UpdateInput();
       if (Resize())
         Render();
     }
@@ -1439,10 +1446,22 @@ void RenderFont()
     print("g_pVertexBuffersFont->Map");
   }
 
-  int length = sprint("bloomPasses: %d\n"
-                      "   exposure: %f",
-                      g_bloomPasses,
-                      g_exposure);
+  sprint("bloomPasses: %d\n"
+         "   exposure: %f\n\n"
+         "triggerL: % 5.3f\n"
+         "triggerR: % 5.3f\n"
+         " thumbLX: % 5.3f\n"
+         " thumbLY: % 5.3f\n"
+         " thumbRX: % 5.3f\n"
+         " thumbRY: % 5.3f",
+         g_bloomPasses,
+         g_exposure,
+         g_Joystate.triggerL,
+         g_Joystate.triggerR,
+         g_Joystate.thumbLX,
+         g_Joystate.thumbLY,
+         g_Joystate.thumbRX,
+         g_Joystate.thumbRY);
 
   const char start_advance = 10;
   int hadvance = start_advance;
@@ -1509,7 +1528,7 @@ void RenderFont()
 
   for (UINT p = 0; p < techDesc.Passes; p++) {
     g_pTechniqueFont->GetPassByIndex(p)->Apply(0);
-    g_pd3dDevice->Draw(length, 0);
+    g_pd3dDevice->Draw(ix, 0);
   }
 }