From bccb1d61907fea45c5e84b29499989f7cee104a5 Mon Sep 17 00:00:00 2001
From: Fox Caminiti <fox@foxcam.net>
Date: Thu, 4 Aug 2022 12:33:54 -0400
Subject: loaded bitmap wrap buffer seems stable

---
 main.cpp | 22 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)

(limited to 'main.cpp')

diff --git a/main.cpp b/main.cpp
index dc16f30..01b051d 100644
--- a/main.cpp
+++ b/main.cpp
@@ -78,17 +78,21 @@ MainFunction(main_sdl *Main, memory *Memory,
     Bitmap_Clear(CompBuffer->UnpackedBuffer, CompBuffer->Width, CompBuffer->Height, CompBuffer->BytesPerPixel);
     for (int i = 0; i < File->NumberOfLayers; i++) {
         project_layer *Layer = File->Layer[i];
-        if (State->UpdateKeyframes) {
-            for (int p = 0; p < Layer->NumberOfEffects; p++) {
-              for (int o = 0; o < Layer->Effect[p]->NumberOfProperties; o++) {
-                CalculateKeyframesLinearly(File->CurrentFrame, &Layer->Effect[p]->Property[o]);
-              }
-            }
-            for (int r = 0; r < AmountOf(Layer->Property); r++) {
-                CalculateKeyframesLinearly(File->CurrentFrame, &Layer->Property[r]);
+        if (Layer->StartFrame <= File->CurrentFrame &&
+            Layer->EndFrame >= File->CurrentFrame)
+        {
+            if (State->UpdateKeyframes) {
+                for (int p = 0; p < Layer->NumberOfEffects; p++) {
+                  for (int o = 0; o < Layer->Effect[p]->NumberOfProperties; o++) {
+                    CalculateKeyframesLinearly(File->CurrentFrame, &Layer->Effect[p]->Property[o]);
+                  }
+                }
+                for (int r = 0; r < AmountOf(Layer->Property); r++) {
+                    CalculateKeyframesLinearly(File->CurrentFrame, &Layer->Property[r]);
+                }
             }
+            Layer_UpdateBitmap(Layer, Memory, File->CurrentFrame);
         }
-        Layer_UpdateBitmap(Layer, Memory, File->CurrentFrame);
     }
     State->UpdateKeyframes = false;
     QueueCurrentFrame(File, CompBuffer, State);
-- 
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