Some small classes

src/egg/gfx/eggGlobalDrawState.cpp

@@ -1,3 +1,37 @@
 #include "egg/gfx/eggGlobalDrawState.h"
 
-namespace EGG {} // namespace EGG
+#include "common.h"
+#include "egg/gfx/eggStateEfb.h"
+#include "egg/gfx/eggStateGX.h"
+#include "rvl/MTX/mtx.h"
+
+namespace EGG {
+
+Screen const *GlobalDrawState::spScreen;
+u16 GlobalDrawState::sCameraId;
+u32 GlobalDrawState::sDrawFlag;
+
+// unknown
+nw4r::math::MTX34 GlobalDrawState::sMtx;
+
+GlobalDrawState sState;
+
+void GlobalDrawState::beginDrawView(u16 cameraId, const nw4r::math::MTX34 &mtx, const Screen &screen) {
+    spScreen = &screen;
+    sCameraId = cameraId;
+    PSMTXCopy(mtx, sMtx);
+    StateEfb::Clean();
+}
+
+void GlobalDrawState::setDrawSettingGX(bool b1, bool b2) {
+    StateGX::GXSetColorUpdate_(sDrawFlag & 1);
+    StateGX::GXSetAlphaUpdate_(sDrawFlag & 2);
+    StateGX::GXSetDither_(sDrawFlag & 4);
+    StateGX::GXSetDstAlpha_(false, 0);
+    if (b2 && spScreen != nullptr) {
+        spScreen->SetProjectionGX();
+    }
+}
+
+
+} // namespace EGG