GL renderer preparation

1 files changed, 30 insertions, 3 deletions

diff --git a/memory.cpp b/memory.cpp
index 27ac266..f502eb2 100644
--- a/memory.cpp
+++ b/memory.cpp
@@ -30,7 +30,6 @@ Memory_Block_AllocateNew(memory *Memory, memory_table_list TableName)
         Index++;
     }
     Memory_Zero(Address_Playhead, Table->Block_ElementSize);
-    *Address_Playhead = 1;
 
     return Index;
 }
@@ -41,7 +40,6 @@ Memory_Block_AddressAtIndex(memory *Memory, memory_table_list TableName, uint32
     memory_table *Table = &Memory->Slot[TableName];
     Assert(Table->Block_ElementSize != 0);
     uint8 *Address = (uint8 *)Table->Address + (Table->Block_ElementSize * Index);
-    Assert(*Address == 1);
     return (void *)Address;
 }
 
@@ -49,7 +47,36 @@ static void *
 Memory_Block_AllocateAddress(memory *Memory, memory_table_list TableName)
 {
     uint16 FileIndex = Memory_Block_AllocateNew(Memory, TableName);
-    return Memory_Block_AddressAtIndex(Memory, F_File, FileIndex);
+    return Memory_Block_AddressAtIndex(Memory, TableName, FileIndex);
+}
+
+static void *
+Memory_PushScratch(memory *Memory, uint64 Size) {
+    memory_table *Table = &Memory->Slot[B_ScratchSpace];
+    uint8 *Address = ((uint8 *)Table->Address + Memory->ScratchPos);
+    Memory->ScratchPos += Size;
+#if DEBUG
+    Debug.ScratchSize[Debug.ScratchState] = Size;
+    Debug.ScratchState++;
+#endif
+    return (void *)Address;
+}
+
+static void
+Memory_PopScratch(memory *Memory, uint64 Size) {
+    memory_table *Table = &Memory->Slot[B_ScratchSpace];
+    Memory->ScratchPos -= Size;
+#if DEBUG
+    Debug.ScratchState--;
+    Assert(Debug.ScratchSize[Debug.ScratchState] == Size);
+#endif
+}
+
+static void *
+Memory_AddressAtOffset(memory *Memory, memory_table_list TableName, uint64 Offset)
+{
+    memory_table *Table = &Memory->Slot[TableName];
+    return (void *)((uint8 *)Table->Address + Offset);
 }
 
 #if 0