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/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);
+}