Decompile 2 functions in Source/Render/AlphaRectangle.cpp, Source/Client/ModeFade.cpp, ...

Batch #1027 by ragnarok-clanker: 0 byte-identical, 2 confirmed by peer review.

- fn_01952 DrawAlphaRectangle: logic confirmed by peer review
- fn_17842 ModeFade::Draw: logic confirmed by peer review

Reviewed-by: ragnarok-clanker
Adds to the build: Source/Render/AlphaRectangle.cpp, Source/Client/ModeFade.cpp

Source/Client/ModeFade.cpp

@@ -0,0 +1,26 @@
+#include "Client/ModeFade.h"
+#include "Contents/Sound/SoundMgr.h"
+#include "Render/Primitives/AlphaRectangle.h"
+
+#include <timeapi.h>
+
+// GLOBAL: gl_24680
+std::uint32_t g_modeFadeTick = 0;
+
+// OFFSET: 0x00AD6740
+// FUNCTION: fn_17842
+void ModeFade::Draw() {
+  if (this->requested != 0) {
+    g_modeFadeTick = timeGetTime();
+    g_soundMgr->FadeIn();
+    this->requested = 0;
+  }
+
+  const std::uint32_t elapsed = timeGetTime() - g_modeFadeTick;
+  if (elapsed < 255) {
+    DrawAlphaRectangle(
+      this->primitives, this->textures, this->queues, 0, 0, this->screenWidth, this->screenHeight, (255 - elapsed) << 24, this->depthAlpha, this->depthStart,
+      this->depthEnd
+    );
+  }
+}

Source/Client/ModeFade.h

@@ -0,0 +1,26 @@
+#ifndef RAGNAROK_SOURCE_CLIENT_MODEFADE_H
+#define RAGNAROK_SOURCE_CLIENT_MODEFADE_H
+
+#include <cstdint>
+
+class RenderPrimitivePool;
+class TextureCache;
+struct RenderQueues;
+
+extern std::uint32_t g_modeFadeTick;
+
+struct ModeFade {
+  int& requested;
+  RenderPrimitivePool& primitives;
+  TextureCache& textures;
+  RenderQueues& queues;
+  const int& screenWidth;
+  const int& screenHeight;
+  const bool& depthAlpha;
+  const float& depthStart;
+  const float& depthEnd;
+
+  void Draw();
+};
+
+#endif

Source/Render/AlphaRectangle.cpp

@@ -0,0 +1,38 @@
+#include "Render/Primitives/AlphaRectangle.h"
+#include "Render/Primitives/RenderPrimitivePool.h"
+#include "Render/Primitives/RenderQueues.h"
+#include "Render/Textures/TextureCache.h"
+
+// OFFSET: 0x0054E460
+// FUNCTION: fn_01952
+void DrawAlphaRectangle(
+  RenderPrimitivePool& primitives, TextureCache& textures, RenderQueues& queues, int x, int y, int width, int height, std::uint32_t color, bool depthAlpha,
+  float depthStart, float depthEnd
+) {
+  if ((color & 0xFF000000u) == 0) {
+    return;
+  }
+
+  RenderPrimitive* primitive = primitives.Acquire();
+  primitive->texture = textures.Default();
+  const float left = static_cast<float>(x);
+  const float top = static_cast<float>(y);
+  const float right = static_cast<float>(x + width);
+  const float bottom = static_cast<float>(y + height);
+  primitive->quad[0].x = left;
+  primitive->quad[0].y = top;
+  primitive->quad[1].x = right;
+  primitive->quad[1].y = top;
+  primitive->quad[2].x = left;
+  primitive->quad[2].y = bottom;
+  primitive->quad[3].x = right;
+  primitive->quad[3].y = bottom;
+  for (RenderVertex& vertex : primitive->quad) {
+    vertex.z = 0.000001f;
+    vertex.rhw = 0.999999f;
+    vertex.diffuse = color;
+    vertex.u = 0.0f;
+    vertex.v = 0.0f;
+  }
+  queues.Submit(primitive, 513, depthAlpha, depthStart, depthEnd);
+}

compile.json

@@ -257,6 +257,7 @@
   "Source/Client/Mode/ModeCursor.cpp": 0,
   "Source/Client/Mode/ModeDragState.cpp": 2,
   "Source/Client/Mode/ModeTooltip.cpp": 2,
+  "Source/Client/ModeFade.cpp": 0,
   "Source/Client/Registry.cpp": 0,
   "Source/Client/Replay.cpp": 0,
   "Source/Client/ReplayPacketRecorder.cpp": 2,
@@ -428,6 +429,7 @@
   "Source/Network/Packets/PartyJoinRequest.cpp": 2,
   "Source/Network/Packets/SkillUpdatePacket.cpp": 4,
   "Source/Network/TextEncoding.cpp": 0,
+  "Source/Render/AlphaRectangle.cpp": 0,
   "Source/Render/BlendColor.cpp": 0,
   "Source/Render/DX7/BackBufferDX7.cpp": 0,
   "Source/Render/DX7/DeviceCapabilitiesDX7.cpp": 0,