From eebbdd012b0d156e9e92369585c6ad82ed3de371 Mon Sep 17 00:00:00 2001
From: Fox Caminiti <fox@foxcam.net>
Date: Wed, 4 Jan 2023 18:30:56 -0500
Subject: shapes; remove stencil buffer?

---
 src/bezier.cpp | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

(limited to 'src/bezier.cpp')

diff --git a/src/bezier.cpp b/src/bezier.cpp
index ac89ed3..420cae1 100644
--- a/src/bezier.cpp
+++ b/src/bezier.cpp
@@ -34,6 +34,19 @@ Bezier_SolveYForX(v2 Point_P0, v2 Point_P1, v2 Point_P2, v2 Point_P3, real32 Tar
     return Y;
 }
 
+static bezier_point *
+Bezier_LookupAddress(memory *Memory, uint16 *Block_Bezier_Index, uint16 Index, bool32 AssertExists)
+{
+    Assert(Index < (MAX_KEYFRAMES_PER_BLOCK * MAX_KEYFRAME_BLOCKS));
+    int SeekBlock = Index / MAX_KEYFRAMES_PER_BLOCK;
+    int SeekIndex = Index - (SeekBlock * MAX_KEYFRAMES_PER_BLOCK);
+    block_bezier *Bezier = (block_bezier *)Memory_Block_AddressAtIndex(Memory, F_Bezier, Block_Bezier_Index[SeekBlock], 0);
+    Assert(Bezier->Occupied);
+    if (AssertExists)
+        Assert(Bezier->Point[SeekIndex].Occupied);
+    return &Bezier->Point[SeekIndex];
+}
+
 static bezier_point *
 Bezier_LookupAddress(memory *Memory, property_channel *Property, uint16 Index, bool32 AssertExists)
 {
@@ -64,6 +77,32 @@ Bezier_Interact_Evaluate(project_state *State, bezier_point *PointAddress, v2 *P
     }
 }
 
+static void
+Bezier_Add(memory *Memory, memory_table_list TableName, uint16 *Block_Bezier_Index, uint16 *Block_Bezier_Count,
+           uint16 *PointCount, bezier_point PointData)
+{
+    int k = 0;
+    for (;;) {
+        int SeekBlock = k / MAX_KEYFRAMES_PER_BLOCK;
+        if ((SeekBlock + 1) > *Block_Bezier_Count) {
+            Block_Bezier_Index[SeekBlock] = Memory_Block_AllocateNew(Memory, F_Bezier);
+            block_bezier *Bezier = (block_bezier *)Memory_Block_AddressAtIndex(Memory, F_Bezier, Block_Bezier_Index[SeekBlock], 0);
+            Bezier->Occupied = true;
+            History_Action_Swap(Memory, TableName, sizeof(*Block_Bezier_Count), Block_Bezier_Count);
+            *Block_Bezier_Count += 1;
+        }
+        bezier_point *Point = Bezier_LookupAddress(Memory, Block_Bezier_Index, k, 0);
+        if (!Point->Occupied) {
+            History_Action_Swap(Memory, F_Bezier, sizeof(*Point), Point);
+            *Point = PointData;
+            History_Action_Swap(Memory, TableName, sizeof(*PointCount), PointCount);
+            *PointCount += 1;
+            return;
+        }
+        k++;
+    }
+}
+
 static void
 Bezier_Add(memory *Memory, memory_table_list TableName, property_channel *Property, bezier_point PointData, uint16 *ArrayLocation)
 {
-- 
cgit v1.2.3