From 8875d0226f0d38a1e5ef946e56cd15810627f5ac Mon Sep 17 00:00:00 2001
From: Fox Caminiti <fox@foxcam.net>
Date: Wed, 3 Aug 2022 16:57:07 -0400
Subject: caching introduced

---
 createcalls.cpp               |  90 ++++++++++++++---
 defines.h                     |   3 +-
 effects.cpp                   |  33 ++-----
 ffmpeg_backend.cpp            | 169 +++++++++++++++++---------------
 ffmpeg_backend.h              |  25 ++---
 functions.h                   |   6 +-
 main.cpp                      |  23 +++--
 main.h                        |  76 +++++++--------
 memory.cpp                    |  19 +++-
 my_imgui_internal_widgets.cpp | 222 ++++++------------------------------------
 my_imgui_widgets.cpp          | 136 +++++++++++++++++++++-----
 prenderer.cpp                 |   2 +-
 12 files changed, 407 insertions(+), 397 deletions(-)

diff --git a/createcalls.cpp b/createcalls.cpp
index 42ab9b1..892be0a 100644
--- a/createcalls.cpp
+++ b/createcalls.cpp
@@ -55,7 +55,6 @@ Source_Generate(project_data *File, memory *Memory, char *Path)
 
     if (!Found && AV_IsFileSupported(Path)) {
         Source->SourceType = source_type_video;
-        AV_CodecInfo_Init(Path, Source, Memory);
         Found = true;
     }
 
@@ -178,27 +177,96 @@ project_layer * Layer_Init(project_data *File, memory *Memory)
     return File->Layer[a];
 }
 
+static cached_bitmap *
+Cache_CheckBitmap(source *Source, layer_bitmap_info *BitmapInfo, memory *Memory, int32 TimelineFrame)
+{
+    memory_table *Table = &Memory->Slot[B_LoadedBitmaps];
+    int32 FrameToSeek = TimelineFrame - BitmapInfo->FrameOffset;
+    if (FrameToSeek < 0) { FrameToSeek = 0; };
+    for (int i = 0; i < Table->NumberOfPointers; i++) {
+        cached_bitmap *Bitmap = &Memory->Bitmap[i];
+        if (Bitmap->Frame == FrameToSeek && Bitmap->SourceOwner == Source) {
+            return Bitmap;
+        }
+    }
+    return 0;
+}
+
 static void
-Layer_UpdateBitmap(source *Source, layer_bitmap_info *BitmapInfo, memory *Memory, int32 CurrentFrame) {
-    AV_LoadVideoFrame(Source, BitmapInfo, Memory, CurrentFrame);
-    // UpdateEffects(Layer, Memory);
+Layer_UpdateBitmap(project_layer *Layer, memory *Memory, int32 CurrentFrame) {
+    source *Source = Layer->Source;
+    layer_bitmap_info *BitmapInfo = &Layer->BitmapInfo;
+    cached_bitmap *Bitmap = Cache_CheckBitmap(Source, BitmapInfo, Memory, CurrentFrame);
+    if (Bitmap)  {
+        uint16 Width = Source->Info.Width;
+        uint16 Height = Source->Info.Height;
+        uint16 BytesPerPixel = Source->Info.BytesPerPixel;
+        void *DestBuffer = BitmapInfo->BitmapBuffer;
+        Bitmap_ConvertPacking(Bitmap->Data, DestBuffer, Width, Height, BytesPerPixel, 0);
+    } else {
+        AV_LoadVideoFrame(Source, BitmapInfo, Memory, CurrentFrame);
+    }
+    for (int i = 0; i < Layer->NumberOfEffects; i++)
+    {
+        if (Layer->Effect[i]->IsActive)
+            Layer->Effect[i]->func(Source, BitmapInfo, Memory, Layer->Effect[i]->Property);
+    }
 }
 
 static void
-LoadTestFootage(project_data *File, project_state *State, memory *Memory)
+Layer_InitSource(project_layer *Layer, source *Source, memory *Memory)
 {
-    if (!Source_Generate(File, Memory, "../asset/24.mp4"))
-        PostMsg(State, "File open fail...");
-    source *Source = &File->Source[0];
-    project_layer *Layer = Layer_Init(File, Memory);
     Layer->Source = Source;
-    AV_PacketInfo_Init(&Layer->BitmapInfo, Memory);
     uint16 Height = Source->Info.Height;
     uint16 Width = Source->Info.Width;
     uint16 BytesPerPixel = Source->Info.BytesPerPixel;
-    Layer_AllocateBitmap(Memory, Width, Height, BytesPerPixel);
+    Layer->BitmapInfo.BitmapBuffer = Layer_AllocateBitmap(Memory, Width, Height, BytesPerPixel);
+}
 
+static void
+Layer_PositionCenter(project_layer *Layer, uint16 Width, uint16 Height) {
+    Layer->x.CurrentValue.f = Width/2;
+    Layer->y.CurrentValue.f = Height/2;
+}
+
+static void
+Layer_CreateFromSource(project_data *File, project_state *State, memory *Memory, source *Source)
+{
+    project_layer *Layer = Layer_Init(File, Memory);
+    AV_Init(Source, &Layer->BitmapInfo, Memory);
+    Layer_InitSource(Layer, Source, Memory);
+    Layer_PositionCenter(Layer, File->Width, File->Height);
+    State->UpdateFrame = true;
+}
+
+static void
+LoadTestFootage(project_data *File, project_state *State, memory *Memory)
+{
+    if (!Source_Generate(File, Memory, "../asset/24.mp4"))
+        PostMsg(State, "File open fail...");
+    source *Source = &File->Source[0];
+    Layer_CreateFromSource(File, State, Memory, Source);
     SelectLayer(File->Layer[0], State, 0);
+    AddEffect(File->Layer[0], Memory, 2);
+    property_channel *Property = &File->Layer[0]->x;
+    ManualKeyframeInsertF(Property, Memory, 1, 500);
+    ManualKeyframeInsertF(Property, Memory, 30, 800);
+    ManualKeyframeInsertF(Property, Memory, 15, 400);
+    ManualKeyframeInsertF(Property, Memory, 20, 100);
+    Property->IsToggled = true;
+    Property->IsGraphToggled = true;
+    Property->GraphLength = 150;
+    Property->GraphYOffset = (Property->GraphWindowHeight - Property->GraphLength)/2;
+
+    // Layer_CreateFromSource(File, State, Memory, Source);
+
+    if (!Source_Generate(File, Memory, "../asset/p.mp4"))
+        PostMsg(State, "File open fail...");
+    source *Source2 = &File->Source[1];
+    project_layer *Layer2 = Layer_Init(File, Memory);
+    AV_Init(Source2, &Layer2->BitmapInfo, Memory);
+    Layer_InitSource(Layer2, Source2, Memory);
+
     // AddEffect(File->Layer[0], Memory, 2);
     // project_layer *Layer1 = CreateDebugLayer(&File, &Memory, 9, 14);
     // project_layer *Layer1 = CreateSolidLayer(&File, &Memory, 9, 13, V4(1.0, 1.0, 1.0, 1.0));
diff --git a/defines.h b/defines.h
index ccca81c..d4a8788 100644
--- a/defines.h
+++ b/defines.h
@@ -32,9 +32,10 @@ typedef double real64;
 #define MAX_EFFECTS 32
 #define MAX_SOURCES 1024
 #define MAX_PROPERTIES_PER_EFFECT 16
+// max keyframes on a single channel is 2048
 #define MAX_KEYFRAME_BLOCKS 64
 #define MAX_KEYFRAMES_PER_BLOCK 32
-#define STRING_SIZE 256
+#define STRING_SIZE 1024
 
 #define MAX_SELECTED_PROPERTIES 16
 
diff --git a/effects.cpp b/effects.cpp
index d427778..6d27df1 100644
--- a/effects.cpp
+++ b/effects.cpp
@@ -1,5 +1,5 @@
 static void
-DrawColor(pixel_buffer *Buffer, memory *Memory, property_channel Property[])
+DrawColor(source *Source, layer_bitmap_info *BitmapInfo, memory *Memory, property_channel Property[])
 {
     v4 FloatColor = Property[0].CurrentValue.col;
     blend_mode BlendMode = Property[1].CurrentValue.blendmode;
@@ -32,14 +32,14 @@ DrawColor(pixel_buffer *Buffer, memory *Memory, property_channel Property[])
     __m256 B_Colx2  = _mm256_mul_ps(B_Col, Two);
     __m256 B_ColInv = _mm256_set1_ps(1.0f - FloatColor.E[2]);
 
-    for (int16 Y = 0; Y < Buffer->Height; Y += 2)
+    for (int16 Y = 0; Y < Source->Info.Height; Y += 2)
     {
-        for (int16 X = 0; X < Buffer->Width; X += 4)
+        for (int16 X = 0; X < Source->Info.Width; X += 4)
         {
             uint32 XLookup = (X >> 2)*16 + (X % 4);
-            uint32 YLookup = (Y >> 2)*(Buffer->Width*4) + (Y % 4)*4;
+            uint32 YLookup = (Y >> 2)*(Source->Info.Width*4) + (Y % 4)*4;
             uint32 PixelToSeek = XLookup + YLookup;
-            uint8 *Pixel = (uint8 *)Buffer->EffectBuffer + PixelToSeek*Buffer->BytesPerPixel;
+            uint8 *Pixel = (uint8 *)BitmapInfo->BitmapBuffer + PixelToSeek*Source->Info.BytesPerPixel;
             __m256i DestPixel = _mm256_loadu_si256((const __m256i *)Pixel);
 
             // normalized values
@@ -178,14 +178,14 @@ DrawColor(pixel_buffer *Buffer, memory *Memory, property_channel Property[])
 }
 
 static void
-DrawGradient(pixel_buffer *Buffer, memory *Memory, property_channel Property[])
+DrawGradient(source *Source, layer_bitmap_info *BitmapInfo, memory *Memory, property_channel Property[])
 {
     v4 StartColor = Property[0].CurrentValue.col;
     v4 EndColor = Property[1].CurrentValue.col;
 }
 
 static void
-Levels(pixel_buffer *Buffer, memory *Memory, property_channel Property[])
+Levels(source *Source, layer_bitmap_info *BitmapInfo, memory *Memory, property_channel Property[])
 {
 }
 
@@ -303,25 +303,6 @@ AddEffect(project_layer *Layer, memory *Memory, uint16 EffectListIndex)
     Layer->NumberOfEffects++;
 }
 
-static void
-CopyToBuffer(pixel_buffer *, uint16 asda = 0);
-
-static void
-UpdateEffects(project_layer *Layer, memory *Memory)
-{
-    source_image *Source = (source_image *)Layer->RenderInfo;
-    if (!Source->Raster.EffectBuffer) {
-        Source->Raster.EffectBuffer = AllocateMemory(Memory, Source->Raster.Width * Source->Raster.Height * Source->Raster.BytesPerPixel,
-                                                    B_Scratch);
-    }
-    CopyToBuffer(&Source->Raster);
-    for (int i = 0; i < Layer->NumberOfEffects; i++)
-    {
-        if (Layer->Effect[i]->IsActive)
-            Layer->Effect[i]->func(&Source->Raster, Memory, Layer->Effect[i]->Property);
-    }
-}
-
 #if 0
 
 static void
diff --git a/ffmpeg_backend.cpp b/ffmpeg_backend.cpp
index e97b4da..dfc1241 100644
--- a/ffmpeg_backend.cpp
+++ b/ffmpeg_backend.cpp
@@ -19,20 +19,20 @@ av_always_inline std::string av_err2string(int errnum) {
 
 #include "ffmpeg_backend.h"
 
-bool32 AV_TryFrame(av_codec_info *AV, av_packet_info *AVLayer, int32 *err)
+bool32 AV_TryFrame(av_info *AV, int32 *err)
 {
-    *err = av_read_frame(AV->FileFormatContext, AVLayer->VideoPacket);
-    if (*err >= 0 && AVLayer->VideoPacket->stream_index != AV->VideoStream->index) {
-        av_packet_unref(AVLayer->VideoPacket);
+    *err = av_read_frame(AV->FileFormatContext, AV->VideoPacket);
+    if (*err >= 0 && AV->VideoPacket->stream_index != AV->VideoStream->index) {
+        av_packet_unref(AV->VideoPacket);
         return 0;
     }
 
     if (*err < 0)
-        *err = avcodec_send_packet(AV->VideoCodecContext, AVLayer->VideoPacket);
+        *err = avcodec_send_packet(AV->VideoCodecContext, AV->VideoPacket);
     else {
-        *err = avcodec_send_packet(AV->VideoCodecContext, AVLayer->VideoPacket);
+        *err = avcodec_send_packet(AV->VideoCodecContext, AV->VideoPacket);
     }
-    av_packet_unref(AVLayer->VideoPacket);
+    av_packet_unref(AV->VideoPacket);
 
     if (*err < 0)
     {
@@ -41,7 +41,7 @@ bool32 AV_TryFrame(av_codec_info *AV, av_packet_info *AVLayer, int32 *err)
     }
 
     while (*err >= 0) {
-        *err = avcodec_receive_frame(AV->VideoCodecContext, AVLayer->VideoFrame);
+        *err = avcodec_receive_frame(AV->VideoCodecContext, AV->VideoFrame);
         if (*err == AVERROR_EOF) {
         } else if (*err == AVERROR(EAGAIN)) {
             *err = 0;
@@ -54,6 +54,8 @@ bool32 AV_TryFrame(av_codec_info *AV, av_packet_info *AVLayer, int32 *err)
     return 0;
 }
 
+// TODO(fox): Could be combined into AV_Init once we have dealloc functions for
+// the AVInfo allocation.
 bool32 AV_IsFileSupported(char *filename)
 {
     int32 err = 0;
@@ -84,10 +86,10 @@ bool32 AV_IsFileSupported(char *filename)
     return 1;
 }
 
-void AV_CodecInfo_Init(char *filename, source *Source, memory *Memory)
+void AV_Init(source *Source, layer_bitmap_info *BitmapInfo, memory *Memory)
 {
-    Source->Info.AVCodecInfo = AllocateMemory(Memory, sizeof(av_codec_info), P_AVInfo);
-    av_codec_info *AV = (av_codec_info *)Source->Info.AVCodecInfo;
+    BitmapInfo->AVInfo = AllocateMemory(Memory, sizeof(av_info), P_AVInfo);
+    av_info *AV = (av_info *)BitmapInfo->AVInfo;
     *AV = {};
 
     int32 err = 0;
@@ -96,17 +98,20 @@ void AV_CodecInfo_Init(char *filename, source *Source, memory *Memory)
     // while((type = av_hwdevice_iterate_types(type)) != AV_HWDEVICE_TYPE_NONE)
     //     printf("%s\n", av_hwdevice_get_type_name(type));
 
-    AV->FileFormatContext = avformat_alloc_context();
-    err = avformat_open_input(&AV->FileFormatContext, filename, NULL, NULL);;
+    // The two calls below theoretically shouldn't fail since we already tested them in IsFileSupported.
 
+    AV->FileFormatContext = avformat_alloc_context();
+    err = avformat_open_input(&AV->FileFormatContext, Source->Path, NULL, NULL);;
     if (err < 0) {
             fprintf(stderr, "Libav error: (%s)\n", av_err2str(err));
+            Assert(0);
     }
 
     err = avformat_find_stream_info(AV->FileFormatContext,  NULL);
 
     if (err < 0) {
             fprintf(stderr, "Libav error: (%s)\n", av_err2str(err));
+            Assert(0);
     }
 
     for (int i = 0; i < AV->FileFormatContext->nb_streams; i++)
@@ -154,12 +159,20 @@ void AV_CodecInfo_Init(char *filename, source *Source, memory *Memory)
     if (err < 0) {
             fprintf(stderr, "Libav error: (%s)\n", av_err2str(err));
     }
-
     avcodec_open2(AV->VideoCodecContext, AV->VideoCodec, NULL);
     if (err < 0) {
             fprintf(stderr, "Libav error: (%s)\n", av_err2str(err));
     }
 
+    AV->VideoPacket = av_packet_alloc();
+    if (err < 0) {
+            fprintf(stderr, "Libav error: (%s)\n", av_err2str(err));
+    }
+    AV->VideoFrame = av_frame_alloc();
+    if (err < 0) {
+            fprintf(stderr, "Libav error: (%s)\n", av_err2str(err));
+    }
+
     Source->Info.FPS = (real32)AV->VideoStream->r_frame_rate.num / AV->VideoStream->r_frame_rate.den;
     Source->Info.Width = AV->VideoCodecContext->width;
     Source->Info.Height = AV->VideoCodecContext->height;
@@ -167,7 +180,7 @@ void AV_CodecInfo_Init(char *filename, source *Source, memory *Memory)
 
 
 
-void AV_GetPTSAverage(av_codec_info *AV, av_packet_info *AVLayer, int32 *err)
+void AV_GetPTSAverage(source *Source, av_info *AV, int32 *err)
 {
     // TODO(fox): This PTS average isn't exact and causes an occasional
     // frame skip. See libav remarks in forum for more details.
@@ -180,62 +193,34 @@ void AV_GetPTSAverage(av_codec_info *AV, av_packet_info *AVLayer, int32 *err)
     int16 i = 0;
     real32 AvgPTSPerSecond = 0;
     for (;;) {
-        if (AV_TryFrame(AV, AVLayer, err)) {
+        if (AV_TryFrame(AV, err)) {
             if (i >= FPS * TestAmount) {
-                AvgPTSPerSecond = (real32)AVLayer->VideoFrame->pts / TestAmount;
-                printf("frame: %i, pts: %li\n", i, AVLayer->VideoFrame->pts);
+                AvgPTSPerSecond = (real32)AV->VideoFrame->pts / TestAmount;
+                printf("frame: %i, pts: %li\n", i, AV->VideoFrame->pts);
                 break;
             }
             i++;
-            av_frame_unref(AVLayer->VideoFrame);
+            av_frame_unref(AV->VideoFrame);
         }
     }
 
-    AV->AvgPTSPerFrame = (real32)AvgPTSPerSecond / (int32)(FPS + 0.5f);
-    printf("Avg PTS per sec: %.06f, Avg PTS per frame: %.06f\n", AvgPTSPerSecond, AV->AvgPTSPerFrame);
+    Source->Info.AvgPTSPerFrame = (real32)AvgPTSPerSecond / (int32)(FPS + 0.5f);
+    printf("Avg PTS per sec: %.06f, Avg PTS per frame: %.06f\n", AvgPTSPerSecond, Source->Info.AvgPTSPerFrame);
 
     av_seek_frame(AV->FileFormatContext, -1, 0, AVSEEK_FLAG_BACKWARD);
 }
 
-
-void AV_PacketInfo_Init(layer_bitmap_info *BitmapInfo, memory *Memory)
-{
-    BitmapInfo->AVPacketInfo = AllocateMemory(Memory, sizeof(av_packet_info), P_AVInfo);
-    av_packet_info *AV = (av_packet_info *)BitmapInfo->AVPacketInfo;
-    *AV = {};
-    printf("%li", AV->PreviousPTS);
-
-    int32 err = 0;
-
-    AV->VideoPacket = av_packet_alloc();
-    if (err < 0) {
-            fprintf(stderr, "Libav error: (%s)\n", av_err2str(err));
-    }
-    AV->VideoFrame = av_frame_alloc();
-    if (err < 0) {
-            fprintf(stderr, "Libav error: (%s)\n", av_err2str(err));
-    }
-}
-
-
-static void
-Convert4x4Chunk(pixel_buffer *Raster, uint8);
-static void
-ClearBuffer(pixel_buffer *Raster, void *);
-
 bool32 AV_LoadVideoFrame(source *Source, layer_bitmap_info *BitmapInfo, memory *Memory, int32 TimelineFrame)
 {
-    av_codec_info *AV = (av_codec_info *)Source->Info.AVCodecInfo;
-    av_packet_info *AVLayer = (av_packet_info *)BitmapInfo->AVPacketInfo;
-
+    av_info *AV = (av_info *)BitmapInfo->AVInfo;
     int32 *CurrentlyRenderedFrame = &BitmapInfo->CurrentFrame;
 
     int32 err = 0;
 
-    if (!AV->AvgPTSPerFrame) {
-        AV_GetPTSAverage(AV, AVLayer, &err);
+    if (!Source->Info.AvgPTSPerFrame) {
+        AV_GetPTSAverage(Source, AV, &err);
     }
-    Assert(AV->AvgPTSPerFrame);
+    Assert(Source->Info.AvgPTSPerFrame);
 
     int p = 0;
     int i = 0;
@@ -258,28 +243,28 @@ bool32 AV_LoadVideoFrame(source *Source, layer_bitmap_info *BitmapInfo, memory *
 
     *CurrentlyRenderedFrame = FrameToSeek;
 
-    int64 SeekPTS = (int64)(AV->AvgPTSPerFrame*FrameToSeek + 0.5f);
+    int64 SeekPTS = (int64)(Source->Info.AvgPTSPerFrame*FrameToSeek + 0.5f);
 
     while (err >= 0) {
-        if (AV_TryFrame(AV, AVLayer, &err)) {
+        if (AV_TryFrame(AV, &err)) {
 
             // The first frame that gets loaded isn't always the actual
             // first frame, so we need to check until it's correct.
-            if (FrameToSeek == 0 && AVLayer->VideoFrame->pts != AV->VideoStream->start_time) {
-                av_frame_unref(AVLayer->VideoFrame);
-                printf("NON-START: avg: %li, real pts: %li", SeekPTS, AVLayer->VideoFrame->pts);
+            if (FrameToSeek == 0 && AV->VideoFrame->pts != AV->VideoStream->start_time) {
+                av_frame_unref(AV->VideoFrame);
+                printf("NON-START: avg: %li, real pts: %li", SeekPTS, AV->VideoFrame->pts);
                 continue;
             }
 
-            int64 Difference = AVLayer->VideoFrame->pts - SeekPTS;
-            if (abs(Difference) < AV->AvgPTSPerFrame)
+            int64 Difference = AV->VideoFrame->pts - SeekPTS;
+            if (abs(Difference) < Source->Info.AvgPTSPerFrame)
             {
-                if (AVLayer->PreviousPTS == -1) {
-                    AVLayer->PreviousPTS = AVLayer->VideoFrame->pts;
-                    printf("avg: %li, real pts: %li, difference: %li\n", SeekPTS, AVLayer->VideoFrame->pts, Difference);
+                if (AV->PreviousPTS == -1) {
+                    AV->PreviousPTS = AV->VideoFrame->pts;
+                    printf("avg: %li, real pts: %li, difference: %li\n", SeekPTS, AV->VideoFrame->pts, Difference);
                 } else {
-                    printf("avg: %li, real pts: %li, difference: %li difference from last pts: %li\n", SeekPTS, AVLayer->VideoFrame->pts, AVLayer->VideoFrame->pts - SeekPTS, AVLayer->VideoFrame->pts - AVLayer->PreviousPTS);
-                    AVLayer->PreviousPTS = AVLayer->VideoFrame->pts;
+                    printf("avg: %li, real pts: %li, difference: %li difference from last pts: %li\n", SeekPTS, AV->VideoFrame->pts, AV->VideoFrame->pts - SeekPTS, AV->VideoFrame->pts - AV->PreviousPTS);
+                    AV->PreviousPTS = AV->VideoFrame->pts;
                 }
 
                 uint16 Width = Source->Info.Width;
@@ -287,31 +272,63 @@ bool32 AV_LoadVideoFrame(source *Source, layer_bitmap_info *BitmapInfo, memory *
                 uint16 BytesPerPixel = Source->Info.BytesPerPixel;
                 int32 Pitch = Width*BytesPerPixel;
 
-                void *Buffer = AllocateMemory(Memory, Bitmap_CalcTotalBytes(Width, Height, BytesPerPixel), B_LoadedBitmaps);
+                // probably should rename this
+                memory_table *Table = &Memory->Slot[B_LoadedBitmaps];
+                uint64 Size = Bitmap_CalcTotalBytes(Width, Height, BytesPerPixel);
+                if (Table->CurrentPosition + Size > Table->Size) {
+                    Table->CurrentPosition = 0;
+                    Table->PointerIndex = 0;
+                }
+                cached_bitmap *Bitmap = &Memory->Bitmap[Table->PointerIndex];
+                if (Table->PointerIndex < Table->NumberOfPointers) {
+                    bool32 Avail = false;
+                    void *DataStart = Memory->Bitmap[Table->PointerIndex].Data;
+                    while(!Avail) {
+                        void *Data2 = Memory->Bitmap[Table->PointerIndex+1].Data;
+                        uint64 BytesBetween = (uint8 *)Data2 - (uint8 *)DataStart;
+                        if (BytesBetween < Size) {
+                            Memory->Bitmap[Table->PointerIndex+1].SourceOwner = NULL;
+                            Table->PointerIndex++;
+                        } else {
+                            Avail = true;
+                        }
+                        Table->NumberOfPointers--;
+                    }
+                }
+                Table->NumberOfPointers++;
+                Bitmap->Data = AllocateMemory(Memory, Size, B_LoadedBitmaps);
+                if (!Bitmap->Data) {
+                    Assert(0);
+                }
+                Bitmap->SourceOwner = Source;
+                Bitmap->Frame = FrameToSeek;
+                Bitmap->Index = Table->PointerIndex;
+                Table->PointerIndex++;
+                void *Buffer = Bitmap->Data;
 
                 int out_linesize[4] = { Pitch, Pitch, Pitch, Pitch };
                 uint8 *dst_data[4] = { (uint8 *)Buffer, (uint8 *)Buffer + Width*Height*BytesPerPixel,
                                        (uint8 *)Buffer + Width*Height*BytesPerPixel*2, (uint8 *)Buffer + Width*Height*BytesPerPixel*3 };
 
                 // NOTE(fox): This function will be replaced in the future.
-                AVLayer->RGBContext = sws_getContext(AVLayer->VideoFrame->width, AVLayer->VideoFrame->height, (AVPixelFormat)AVLayer->VideoFrame->format,
-                                                AVLayer->VideoFrame->width, AVLayer->VideoFrame->height, AV_PIX_FMT_RGBA, SWS_BILINEAR,
+                AV->RGBContext = sws_getContext(AV->VideoFrame->width, AV->VideoFrame->height, (AVPixelFormat)AV->VideoFrame->format,
+                                                AV->VideoFrame->width, AV->VideoFrame->height, AV_PIX_FMT_RGBA, SWS_BILINEAR,
                                                 NULL, NULL, NULL);
 
-                if(!AVLayer->RGBContext) {
+                if(!AV->RGBContext) {
                     printf("Libav error: SwsContext creation failed.");
                 }
 
-                sws_scale(AVLayer->RGBContext, AVLayer->VideoFrame->data, AVLayer->VideoFrame->linesize, 0, AVLayer->VideoFrame->height,
+                sws_scale(AV->RGBContext, AV->VideoFrame->data, AV->VideoFrame->linesize, 0, AV->VideoFrame->height,
                           dst_data, out_linesize);
 
-                av_frame_unref(AVLayer->VideoFrame);
+                av_frame_unref(AV->VideoFrame);
 
-                if (!BitmapInfo->BitmapBuffer) {
-                    BitmapInfo->BitmapBuffer = AllocateMemory(Memory, Bitmap_CalcTotalBytes(Width, Height, BytesPerPixel), B_LayerBitmaps);
-                }
+                Assert(BitmapInfo->BitmapBuffer);
                 void *DestBuffer = BitmapInfo->BitmapBuffer;
                 Bitmap_ConvertPacking(Buffer, DestBuffer, Width, Height, BytesPerPixel, 0);
+                // void *Buffer2 = AllocateMemory(Memory, Bitmap_CalcTotalBytes(Width, Height, BytesPerPixel), B_LoadedBitmaps);
+                // uint64 test = &Buffer2 - &Buffer;
                 // CopyToBuffer(Buffer, 1);
                 // Bitmap_Clear(Buffer, Source->Info.Width, Source->Info.Height, Source->Info.BytesPerPixel);
 
@@ -320,9 +337,9 @@ bool32 AV_LoadVideoFrame(source *Source, layer_bitmap_info *BitmapInfo, memory *
             else
             {
                 // If this gets printed when not seeking, a frame has been skipped!
-                printf("FRAME SKIP: avg: %li, real pts: %li, difference: %li\n", SeekPTS, AVLayer->VideoFrame->pts, Difference);
+                printf("FRAME SKIP: avg: %li, real pts: %li, difference: %li\n", SeekPTS, AV->VideoFrame->pts, Difference);
             }
-            av_frame_unref(AVLayer->VideoFrame);
+            av_frame_unref(AV->VideoFrame);
         }
     }
     /*
diff --git a/ffmpeg_backend.h b/ffmpeg_backend.h
index d6a6a66..de73ff4 100644
--- a/ffmpeg_backend.h
+++ b/ffmpeg_backend.h
@@ -1,22 +1,23 @@
-struct av_codec_info {
-    real32 AvgPTSPerFrame;
+// NOTE(fox): Even though each layer has its own completely isolated AV
+// instance, it appears two layers with the same file still share something.
+// When the layers aren't at the same position in time, the playhead of one
+// layer gets misaligned every few frames and causes a manual seek back to the
+// position. Different files don't exhibit this behavior.
 
-    AVFormatContext *FileFormatContext;
-    AVCodecParameters *VideoCodecParameters;
+struct av_info {
+    uint64 PreviousPTS = -1; // PTS value of the previous frame, used to check timings.
+
+    AVCodecParameters *VideoCodecParameters;  // Used to supply info about the decoder.
     const AVCodec* VideoCodec;
-    const AVCodecHWConfig* VideoHWConfig;
+    // const AVCodecHWConfig* VideoHWConfig;  // Haven't done enough research to know if HW decoding is already done by default or if we need these.
     // AVPixelFormat HWPixFormat;
+    AVStream *VideoStream;    // Which stream, or channel, the video is in. Holds FPS info and is used to verify that the decoded packet belongs to this stream.
+    AVFormatContext *FileFormatContext; // Umbrella for everything else, seems to contain the playhead state
     AVCodecContext *VideoCodecContext;
-    AVStream *VideoStream;
-};
-
-struct av_packet_info {
-    uint64 PreviousPTS = -1; // PTS value of the previous frame, used to check timings.
-
     AVPacket *VideoPacket;
     AVFrame *VideoFrame;
     SwsContext *RGBContext;
 };
 
-static bool32 AV_TryFrame(av_codec_info *AV, av_packet_info *AVPacket, int32 *err);     // Internal attempt to decode a frame. Typically run in a while loop until it returns true.
+static bool32 AV_TryFrame(av_info *AVPacket, int32 *err);     // Internal attempt to decode a frame. Typically run in a while loop until it returns true.
 
diff --git a/functions.h b/functions.h
index af4f109..64c8dc9 100644
--- a/functions.h
+++ b/functions.h
@@ -1,7 +1,7 @@
 
 // Buffer management
 
-static void * Layer_AllocateBuffer(memory *Memory, uint16 Width, uint16 Height, uint16 BytesPerPixel); //
+static void * Layer_AllocateBitmap(memory *Memory, uint16 Width, uint16 Height, uint16 BytesPerPixel); //
 static project_layer * Layer_Init(project_data *File, memory *Memory); // Initializes a layer's name and properties. Add a source manually.
 
 
@@ -10,9 +10,11 @@ static uint16 Bitmap_CalcByteOffset(uint16 BytesPerPixel); // Returns the amount
 static uint64 Bitmap_CalcTotalBytes(uint16 Width, uint16 Height, uint16 BytesPerPixel); // Returns the total amount of bytes a bitmap takes up.
 static void Bitmap_ConvertPacking(void *Buffer, void *DestBuffer, uint16 Width, uint16 Height, uint16 BytesPerPixel, uint16 Which);
 
+static bool32 Source_Generate(project_data *File, memory *Memory, char *Path); // Fills out source info if the source is a supported file.
+
 // Libav (ffmpeg) backend for decoding video
 
 static bool32 AV_IsFileSupported(char *filename);       // Tests whether a decoder is available for a given file.
-static void AV_CodecInfo_Init(char *filename, source *Source, memory *Memory); // Initializes all internal structs and calculates average PTS.
+static void AV_Init(char *filename, source *Source, memory *Memory); // Initializes all internal structs and calculates average PTS.
 static bool32 AV_LoadVideoFrame(source *Source, memory *Memory, int32 TimelineFrame); // Loads video frame at TimelineFrame.
 
diff --git a/main.cpp b/main.cpp
index c6e129b..dc16f30 100644
--- a/main.cpp
+++ b/main.cpp
@@ -55,7 +55,7 @@ SDL_Thread *thread[8];
 SDL_sem *Semaphore;
 
 #include "memory.cpp"
-// #include "effects.cpp"
+#include "effects.cpp"
 #include "keyframes.cpp"
 #include "layer.cpp"
 #include "strings.cpp"
@@ -88,8 +88,7 @@ MainFunction(main_sdl *Main, memory *Memory,
                 CalculateKeyframesLinearly(File->CurrentFrame, &Layer->Property[r]);
             }
         }
-
-        Layer_UpdateBitmap(Layer->Source, &Layer->BitmapInfo, Memory, File->CurrentFrame);
+        Layer_UpdateBitmap(Layer, Memory, File->CurrentFrame);
     }
     State->UpdateKeyframes = false;
     QueueCurrentFrame(File, CompBuffer, State);
@@ -215,17 +214,18 @@ int main(int argc, char *argv[]) {
 
     memory Memory = {};
 
-    InitMemoryTable(&GlobalMemory, &Memory, 10 * 1024 * 1024, P_UIState, "UI state");
     // TODO(fox): Make clean-up functions when these get deleted!
+
     InitMemoryTable(&GlobalMemory, &Memory, 10 * 1024 * 1024, P_AVInfo, "Image/video headers");
+    InitMemoryTable(&GlobalMemory, &Memory, 10 * 1024 * 1024, P_SourceBitmapTable, "Source bitmap tables");
 
-    InitMemoryTable(&GlobalMemory, &Memory, 10 * 1024 * 1024, F_ProjectSettings, "Project settings");
-    InitMemoryTable(&GlobalMemory, &Memory, 10 * 1024 * 1024, F_Layers, "Layers");
+    InitMemoryTable(&GlobalMemory, &Memory, 15 * 1024 * 1024, F_Layers, "Layers");
     InitMemoryTable(&GlobalMemory, &Memory, 10 * 1024 * 1024, F_Effects, "Effects");
     InitMemoryTable(&GlobalMemory, &Memory, 10 * 1024 * 1024, F_Keyframes, "Keyframe blocks");
     InitMemoryTable(&GlobalMemory, &Memory, 10 * 1024 * 1024, F_Strings, "Strings");
-    InitMemoryTable(&GlobalMemory, &Memory, (uint64)16 * 1024 * 1024, B_LayerBitmaps, "Layer buffer");
-    InitMemoryTable(&GlobalMemory, &Memory, (uint64)1 * 1024 * 1024 * 1024, B_LoadedBitmaps, "Loaded bitmap buffer");
+
+    InitMemoryTable(&GlobalMemory, &Memory, (uint64)200 * 1024 * 1024, B_LayerBitmaps, "Layer buffer");
+    InitMemoryTable(&GlobalMemory, &Memory, (uint64)200 * 1024 * 1024, B_LoadedBitmaps, "Loaded bitmap buffer");
 
     project_state State = {};
 
@@ -251,8 +251,9 @@ int main(int argc, char *argv[]) {
     layer_bitmap_info BitmapInfo;
     BitmapInfo.ToUpdate = 0;
     BitmapInfo.FrameOffset = 2;
-    av_packet_info BS = {};
+    av_info BS = {};
     BS.PreviousPTS = 0;
+    effect as = {};
 #endif
 
     LoadTestFootage(&File, &State, &Memory);
@@ -432,8 +433,10 @@ int main(int argc, char *argv[]) {
 
         ImGui_Timeline(&File, &State, &Memory, &UI, io);
 #if DEBUG
-        if (Debug.ToggleWindow)
+        if (Debug.ToggleWindow) {
             ImGui::ShowDemoWindow();
+            ImGui_DebugMemoryViewer(&File, &Memory);
+        }
 #endif
 
         if (UI.TemporaryUpdateOverride) {
diff --git a/main.h b/main.h
index 691d915..0067c26 100644
--- a/main.h
+++ b/main.h
@@ -28,16 +28,14 @@ enum memory_table_list {
     // P = persistent data, but not file-based
     // B = cached data, often cleared
 
-    F_ProjectSettings,
-    // The majority bloat from these two are the properties.
+    P_AVInfo,
+    P_SourceBitmapTable,
+
     F_Layers,
     F_Effects,
     F_Keyframes,
     F_Strings,
 
-    P_UIState,
-    P_AVInfo,
-
     B_LayerBitmaps,
     B_LoadedBitmaps,
 };
@@ -47,6 +45,8 @@ struct memory_table {
     void *Address;
     uint64 CurrentPosition;
     uint64 Size;
+    uint32 NumberOfPointers;
+    uint32 PointerIndex;
 };
 
 struct global_memory {
@@ -55,12 +55,18 @@ struct global_memory {
     uint64 Size;
 };
 
-struct cached_bitmap_block;
+struct source;
+
+struct cached_bitmap {
+    source *SourceOwner;     // Which source it belongs to. Currently used to dereference the bitmap.
+    void *Data;             // Unpacked data loaded from the source file.
+    uint32 Frame;           // What frame it is.
+    uint32 Index;           // Index in memory.
+};
 
 struct memory {
     memory_table Slot[16];
-    cached_bitmap_block *CacheBlock[256];
-    uint16 NumberOfCachedBlocks;
+    cached_bitmap Bitmap[4096];
 };
 
 struct property_channel;
@@ -144,7 +150,7 @@ struct keyframe_block {
 struct property_channel {
     char *Name;
     keyframe_block *KeyframeBlock[MAX_KEYFRAME_BLOCKS];
-    uint16 SortedIndex[MAX_KEYFRAMES_PER_BLOCK * MAX_KEYFRAME_BLOCKS];
+    uint16 SortedIndex[MAX_KEYFRAME_BLOCKS * MAX_KEYFRAMES_PER_BLOCK];
     uint16 NumberOfKeyframeBlocks;
     uint16 NumberOfSelectedKeyframes;
     uint16 NumberOfTotalKeyframes;
@@ -175,27 +181,6 @@ struct property_header
     val MaxVal;
 };
 
-struct pixel_buffer {};
-
-struct effect_header
-{
-    char *Name;
-	void (*func)(pixel_buffer *, memory *, property_channel []);
-    uint16 NumberOfProperties;
-    display_type DisplayType;
-    property_header PropertyHeader[MAX_PROPERTIES_PER_EFFECT];
-};
-
-struct effect {
-    char *Name;
-	void (*func)(pixel_buffer *, memory *, property_channel []);
-    uint16 NumberOfProperties;
-    display_type DisplayType;
-    property_channel Property[MAX_PROPERTIES_PER_EFFECT];
-    bool32 UIIsCollapsed = 0;
-    bool32 IsActive = 1;
-};
-
 
 // Information about a particular file.
 
@@ -216,7 +201,7 @@ struct source_info {
 
     // Video only
     real32 FPS;
-    void* AVCodecInfo;             // Internal data for the video decoder library.
+    real32 AvgPTSPerFrame; // set by Libav
 };
 
 struct source {
@@ -227,12 +212,6 @@ struct source {
 
 // Bitmaps from files are loaded into these temporary cache blocks.
 
-struct cached_bitmap_block {
-    source *SourceOwner;    // Which source the data belongs to.
-    void *Data;             // Unpacked data loaded from the source file.
-    uint32 StartFrame;
-    uint32 NumberOfCachedFrames;
-};
 
 struct layer_bitmap_info {
     // Image and video
@@ -242,7 +221,7 @@ struct layer_bitmap_info {
     // Video only
     int32 FrameOffset;        // the "true" position of video layers, separate from StartFrame
     int32 CurrentFrame = -1;  // The last frame number rendered to the bitmap.
-    void *AVPacketInfo;        // Internal data containing current frame info
+    void *AVInfo;        // Internal data containing current frame info
 };
 
 struct comp_buffer {
@@ -253,6 +232,26 @@ struct comp_buffer {
     void *UnpackedBuffer;
 };
 
+struct effect_header
+{
+    char *Name;
+	void (*func)(source *, layer_bitmap_info *, memory *, property_channel []);
+    uint16 NumberOfProperties;
+    display_type DisplayType;
+    property_header PropertyHeader[MAX_PROPERTIES_PER_EFFECT];
+};
+
+struct effect {
+    char *Name;
+	void (*func)(source *, layer_bitmap_info *, memory *, property_channel []);
+    uint16 NumberOfProperties;
+    display_type DisplayType;
+    property_channel Property[MAX_PROPERTIES_PER_EFFECT];
+    bool32 UIIsCollapsed = 0;
+    bool32 IsActive = 1;
+};
+
+
 
 struct transform_info {
     real32 XAxisPX;
@@ -366,7 +365,6 @@ enum transforms_hotkey_interact {
 
 struct main_sdl
 {
-    // pixel_buffer Buffer;
     SDL_Texture *Texture;
     SDL_Event Event;
     SDL_Window *Window;
diff --git a/memory.cpp b/memory.cpp
index 6aebdc3..fcd7627 100644
--- a/memory.cpp
+++ b/memory.cpp
@@ -2,7 +2,7 @@ static void
 InitMemoryTable(global_memory *GlobalMemory, memory *Memory, uint64 Size, memory_table_list TableName, char *Name) {
     memory_table *Table = &Memory->Slot[TableName];
     Table->Name = Name;
-    Table->Address = (uint64 *)GlobalMemory->Address + GlobalMemory->CurrentPosition;
+    Table->Address = (uint64 *)((uint8 *)GlobalMemory->Address + GlobalMemory->CurrentPosition);
     Table->Size = Size;
     GlobalMemory->CurrentPosition += Size;
 }
@@ -11,8 +11,21 @@ static void*
 AllocateMemory(memory *Memory, uint64 Size, memory_table_list TableName) {
     void *Address;
     memory_table *Table = &Memory->Slot[TableName];
-    Assert(Table->CurrentPosition + Size < Table->Size);
-    Address = (uint64 *)Table->Address + Table->CurrentPosition;
+    if (Table->CurrentPosition + Size > Table->Size) {
+        return NULL;
+    }
+    Address = (uint64 *)((uint8 *)Table->Address + Table->CurrentPosition);
     Table->CurrentPosition += Size;
     return Address;
 }
+
+// Returns 0-1 range wherever Pointer is in relation to StartingPointer to Size*Amount.
+static real32
+Memory_NormalizedPosition(void *StartingPointer, uint32 Amount, uint32 Size, void *Pointer)
+{
+    real32 Result = 0;
+    uint64 TotalSize = Amount*Size;
+    uint64 PointerLocationSize = (uint8 *)Pointer - (uint8 *)StartingPointer;
+    Result = (real32)PointerLocationSize / (real32)TotalSize;
+    return Result;
+}
diff --git a/my_imgui_internal_widgets.cpp b/my_imgui_internal_widgets.cpp
index 5ff01ee..d8934d8 100644
--- a/my_imgui_internal_widgets.cpp
+++ b/my_imgui_internal_widgets.cpp
@@ -7,57 +7,14 @@
 #include "imgui_internal.h"
 
 // A modded version of ScalarSlider allowing for the minimum and maximum parts
-// of the slider to be draggable by two other buttons. p_data is from range -1
+// of the slider to be draggable by two other buttons. p_mid is from range -1
 // to 1, and s_min and max are from 0-1.
-#if 0
-// bool ImGui::SliderLevels(const char* label, ImGuiDataType data_type, void* v, int components, const void* v_min, const void* v_max, const char* format, ImGuiSliderFlags flags)
-bool ImGui::SliderLevels(const char* label, void* p_data, const void* s_min, const void* s_max)
+bool ImGui::SliderLevels(const char* label, void* p_mid, void* p_left, void* p_right)
 {
     ImGuiWindow* window = GetCurrentWindow();
     if (window->SkipItems)
         return false;
 
-    const float MidMin = -1;
-    const float MidMax = 1;
-    const void* mid_min = &SliderMin;
-    const void* mid_max = &SliderMax;
-    ImGuiDataType data_type = ImGuiDataType_Float;
-    const char *format = "%f";
-
-    ImVec2 picker_pos = window->DC.CursorPos;
-
-    ImGuiContext& g = *GImGui;
-    bool value_changed = false;
-    BeginGroup();
-    PushID(label);
-    value_changed |= SliderScalar("", data_type, p_data, mid_min, mid_max, format, ImGuiSliderFlags_Logarithmic);
-    SetCursorScreenPos(ImVec2(picker_pos.x + 20.0f, picker_pos.y));
-    // PushItemWidth();
-    value_changed |= SliderScalar("", data_type, p_data, p_min, p_max, format, ImGuiSliderFlags_Logarithmic);
-    // PushMultiItemsWidths(components, CalcItemWidth());
-    // size_t type_size = GDataTypeInfo[data_type].Size;
-    // for (int i = 0; i < components; i++)
-    // {
-    //     PushID(i);
-    //     if (i > 0)
-    //         SameLine(0, g.Style.ItemInnerSpacing.x);
-    //     value_changed |= SliderScalar("", data_type, v, v_min, v_max, format, flags);
-    //     PopID();
-    //     PopItemWidth();
-    //     v = (void*)((char*)v + type_size);
-    // }
-    PopID();
-
-    EndGroup();
-    return value_changed;
-}
-bool ImGui::SliderLevels(const char* label, void* p_data, void* s_left, void* s_right)
-{
-    ImGuiSliderFlags flags = ImGuiSliderFlags_NoInput;
-    ImGuiWindow* window = GetCurrentWindow();
-    if (window->SkipItems)
-        return false;
-
     const float SliderMin = -1;
     const float SliderMax = 1;
     const float OtherMin = 0;
@@ -69,154 +26,53 @@ bool ImGui::SliderLevels(const char* label, void* p_data, void* s_left, void* s_
     ImGuiDataType data_type = ImGuiDataType_Float;
     const char *format = "%f";
 
+    ImGuiSliderFlags flags = ImGuiSliderFlags_NoInput;
     ImGuiContext& g = *GImGui;
     const ImGuiStyle& style = g.Style;
+
+    // I'm not well-versed in exactly what ImGui's id system does, but I'm
+    // pretty sure it's one clickable object equals one ImGui ID.
     const ImGuiID id = window->GetID(label);
-    const ImGuiID id_mid = window->GetID("asdasbdsgd");
-    const ImGuiID id_L = window->GetID("ppasd");
+    PushID(label);
+    PushID(1);
+    const ImGuiID id_L = window->GetID("");
+    PopID();
+    PopID();
     const ImGuiID id_R = window->GetID("adsafb");
+    const ImGuiID id_mid = window->GetID("asdasbdsgd");
     const float w = CalcItemWidth();
 
     const ImVec2 label_size = CalcTextSize(label, NULL, true);
     const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(w, label_size.y + style.FramePadding.y * 2.0f));
     const ImRect total_bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0.0f));
 
-    // const bool temp_input_allowed = (flags & ImGuiSliderFlags_NoInput) == 0;
-    // ItemSize(total_bb, style.FramePadding.y);
-    // if (!ItemAdd(total_bb, id, &frame_bb, temp_input_allowed ? ImGuiItemFlags_Inputable : 0))
-    //     return false;
-
-    const bool hovered = ItemHoverable(frame_bb, id_L);
-
-    // NOTE(fox): Making bogus calls here to get these positions so we can only activate the one we want - replace with the lower-level call.
-    // const ImGuiID id_bogus = window->GetID("ppp");
-    // ImRect test_left;
-    // SliderBehavior(frame_bb, id_bogus, data_type, s_left, o_min, o_max, format, ImGuiSliderFlags_NoInput, &test_left);
-    // ImRect test_right;
-    // SliderBehavior(frame_bb, id_bogus, data_type, s_right, o_min, o_max, format, ImGuiSliderFlags_NoInput, &test_right);
-
-    const bool input_requested_by_tabbing = (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_FocusedByTabbing) != 0;
-    const bool clicked = (hovered && g.IO.MouseClicked[0]);
-    const bool make_active = (input_requested_by_tabbing || clicked || g.NavActivateId == id_L || g.NavActivateInputId == id_L);
-    if (make_active)
-    {
-        SetActiveID(id_L, window);
-        SetFocusID(id_L, window);
-        FocusWindow(window);
-        g.ActiveIdUsingNavDirMask |= (1 << ImGuiDir_Left) | (1 << ImGuiDir_Right);
-    }
-    /*
-    else if (make_active && g.IO.MousePos.x > test_right.Min.x) {
-        SetActiveID(id_R, window);
-        SetFocusID(id_R, window);
-        FocusWindow(window);
-        g.ActiveIdUsingNavDirMask |= (1 << ImGuiDir_Left) | (1 << ImGuiDir_Right);
-    } else if (make_active) {
-        SetActiveID(id_mid, window);
-        SetFocusID(id_mid, window);
-        FocusWindow(window);
-        g.ActiveIdUsingNavDirMask |= (1 << ImGuiDir_Left) | (1 << ImGuiDir_Right);
-    }
-    */
-
-    // Draw frame
-    const ImU32 frame_col = GetColorU32(g.ActiveId == id ? ImGuiCol_FrameBgActive : hovered ? ImGuiCol_FrameBgHovered : ImGuiCol_FrameBg);
-    RenderNavHighlight(frame_bb, id);
-    RenderFrame(frame_bb.Min, frame_bb.Max, frame_col, true, g.Style.FrameRounding);
+    ItemSize(total_bb, style.FramePadding.y);
 
+    if (!ItemAdd(total_bb, id_L, &frame_bb, 0))
+        return false;
+    if (!ItemAdd(total_bb, id_R, &frame_bb, 0))
+        return false;
+    if (!ItemAdd(total_bb, id_mid, &frame_bb, 0))
+        return false;
 
     // Slider behavior
-    ImRect L_grab_bb;
-    const bool value_changed = SliderBehavior(frame_bb, id_L, data_type, s_left, o_min, o_max, format, ImGuiSliderFlags_NoInput, &L_grab_bb);
+    ImRect grab_bb;
+    const bool value_changed = SliderBehavior(frame_bb, id_L, data_type, p_left, o_min, o_max, format, flags, &grab_bb);
     if (value_changed)
         MarkItemEdited(id_L);
 
-    // Render grab
-    if (L_grab_bb.Max.x > L_grab_bb.Min.x)
-        window->DrawList->AddRectFilled(L_grab_bb.Min, L_grab_bb.Max, GetColorU32(g.ActiveId == id_L ? ImGuiCol_SliderGrabActive : ImGuiCol_SliderGrab), style.GrabRounding);
-
-#if 0
-    // Slider behavior
-    ImRect R_grab_bb;
-    const bool value_changed2 = SliderBehavior(frame_bb, id_R, data_type, s_right, o_min, o_max, format, ImGuiSliderFlags_NoInput, &R_grab_bb);
+    ImRect grab_bb2;
+    const bool value_changed2 = SliderBehavior(frame_bb, id_R, data_type, p_right, o_min, o_max, format, flags, &grab_bb2);
     if (value_changed2)
         MarkItemEdited(id_R);
 
-    // Render grab
-    if (R_grab_bb.Max.x > R_grab_bb.Min.x)
-        window->DrawList->AddRectFilled(R_grab_bb.Min, R_grab_bb.Max, GetColorU32(g.ActiveId == id_R ? ImGuiCol_SliderGrabActive : ImGuiCol_SliderGrab), style.GrabRounding);
-
-    const ImRect range_bb(ImVec2(L_grab_bb.Min.x, frame_bb.Min.y), ImVec2(R_grab_bb.Min.x, frame_bb.Max.y));
+    const ImRect mid_bb(ImVec2(grab_bb.Max.x, frame_bb.Min.y), ImVec2(grab_bb2.Min.x, frame_bb.Max.y));
 
     // Slider behavior
-    ImRect grab_bb_mid;
-    const bool value_changed_mid = SliderBehavior(range_bb, id_mid, data_type, p_data, p_min, p_max, format, flags | ImGuiSliderFlags_Logarithmic, &grab_bb_mid);
-    // if (value_changed2)
-    //     MarkItemEdited(id_bogus);
-
-    ImVec2 asda = ImVec2(0, 5);
-    // // Render grab
-    if (grab_bb_mid.Max.x > grab_bb_mid.Min.x)
-        window->DrawList->AddRectFilled(grab_bb_mid.Min + asda, grab_bb_mid.Max + asda, GetColorU32(g.ActiveId == id_bogus ? ImGuiCol_SliderGrabActive : ImGuiCol_SliderGrab), style.GrabRounding);
-#endif
-    // Display value using user-provided display format so user can add prefix/suffix/decorations to the value.
-    char value_buf[64];
-    const char* value_buf_end = value_buf + DataTypeFormatString(value_buf, IM_ARRAYSIZE(value_buf), data_type, p_data, format);
-    if (g.LogEnabled)
-        LogSetNextTextDecoration("{", "}");
-    RenderTextClipped(frame_bb.Min, frame_bb.Max, value_buf, value_buf_end, NULL, ImVec2(0.5f, 0.5f));
-
-    if (label_size.x > 0.0f)
-        RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y), label);
-
-    IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags);
-    return value_changed;
-}
-#else
-bool ImGui::SliderLevels(const char* label, void* p_mid, void* p_left, void* p_right)
-{
-    ImGuiWindow* window = GetCurrentWindow();
-    if (window->SkipItems)
-        return false;
-
-    const float SliderMin = -1;
-    const float SliderMax = 1;
-    const float OtherMin = 0;
-    const float OtherMax = 1;
-    const void* p_min = &SliderMin;
-    const void* p_max = &SliderMax;
-    const void* o_min = &OtherMin;
-    const void* o_max = &OtherMax;
-    ImGuiDataType data_type = ImGuiDataType_Float;
-    const char *format = "%f";
-
-    ImGuiSliderFlags flags = ImGuiSliderFlags_NoInput;
-    ImGuiContext& g = *GImGui;
-    const ImGuiStyle& style = g.Style;
-    const ImGuiID id = window->GetID(label);
-    const ImGuiID idnull = window->GetID("asdas");
-    const ImGuiID id_mid = window->GetID("asdasbdsgd");
-    const ImGuiID id_L = window->GetID("ppasd");
-    const ImGuiID id_R = window->GetID("adsafb");
-    const float w = CalcItemWidth();
-
-    const ImVec2 label_size = CalcTextSize(label, NULL, true);
-    const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(w, label_size.y + style.FramePadding.y * 2.0f));
-    const ImRect total_bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0.0f));
-
-    ImRect test_L_bb;
-    SliderBehavior(frame_bb, idnull, data_type, p_left, o_min, o_max, format, flags, &test_L_bb);
-    ImRect test_R_bb;
-    SliderBehavior(frame_bb, idnull, data_type, p_right, o_min, o_max, format, flags, &test_R_bb);
-
-    ItemSize(total_bb, style.FramePadding.y);
-
-    if (!ItemAdd(total_bb, id_L, &frame_bb, 0))
-        return false;
-    if (!ItemAdd(total_bb, id_R, &frame_bb, 0))
-        return false;
-    if (!ItemAdd(total_bb, id_mid, &frame_bb, 0))
-        return false;
+    ImRect grab_bb3;
+    const bool value_changed3 = SliderBehavior(mid_bb, id_mid, data_type, p_mid, p_min, p_max, format, flags, &grab_bb3);
+    if (value_changed3)
+        MarkItemEdited(id_mid);
 
     const bool hovered = ItemHoverable(frame_bb, id);
 
@@ -226,10 +82,10 @@ bool ImGui::SliderLevels(const char* label, void* p_mid, void* p_left, void* p_r
 
         if (make_active)
         {
-            if (g.IO.MousePos.x < test_L_bb.Max.x) {
+            if (g.IO.MousePos.x < grab_bb.Max.x) {
                 SetActiveID(id_L, window);
                 SetFocusID(id_L, window);
-            } else if (g.IO.MousePos.x > test_R_bb.Min.x) {
+            } else if (g.IO.MousePos.x > grab_bb2.Min.x) {
                 SetActiveID(id_R, window);
                 SetFocusID(id_R, window);
             } else {
@@ -246,33 +102,16 @@ bool ImGui::SliderLevels(const char* label, void* p_mid, void* p_left, void* p_r
     RenderNavHighlight(frame_bb, id_L);
     RenderFrame(frame_bb.Min, frame_bb.Max, frame_col, true, g.Style.FrameRounding);
 
-    // Slider behavior
-    ImRect grab_bb;
-    const bool value_changed = SliderBehavior(frame_bb, id_L, data_type, p_left, o_min, o_max, format, flags, &grab_bb);
-    if (value_changed)
-        MarkItemEdited(id_L);
 
     // Render grab
     if (grab_bb.Max.x > grab_bb.Min.x)
         window->DrawList->AddRectFilled(grab_bb.Min, grab_bb.Max, GetColorU32(g.ActiveId == id_L ? ImGuiCol_SliderGrabActive : ImGuiCol_SliderGrab), style.GrabRounding);
 
-    // Slider behavior
-    ImRect grab_bb2;
-    const bool value_changed2 = SliderBehavior(frame_bb, id_R, data_type, p_right, o_min, o_max, format, flags, &grab_bb2);
-    if (value_changed2)
-        MarkItemEdited(id_R);
 
     // Render grab
     if (grab_bb2.Max.x > grab_bb2.Min.x)
         window->DrawList->AddRectFilled(grab_bb2.Min, grab_bb2.Max, GetColorU32(g.ActiveId == id_R ? ImGuiCol_SliderGrabActive : ImGuiCol_SliderGrab), style.GrabRounding);
 
-    const ImRect mid_bb(ImVec2(grab_bb.Max.x, frame_bb.Min.y), ImVec2(grab_bb2.Min.x, frame_bb.Max.y));
-
-    // Slider behavior
-    ImRect grab_bb3;
-    const bool value_changed3 = SliderBehavior(mid_bb, id_mid, data_type, p_mid, p_min, p_max, format, flags, &grab_bb3);
-    if (value_changed3)
-        MarkItemEdited(id_mid);
 
     // Render grab
     if (grab_bb3.Max.x > grab_bb3.Min.x)
@@ -291,4 +130,3 @@ bool ImGui::SliderLevels(const char* label, void* p_mid, void* p_left, void* p_r
     IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags);
     return value_changed;
 }
-#endif
diff --git a/my_imgui_widgets.cpp b/my_imgui_widgets.cpp
index 1ee82e9..f93866a 100644
--- a/my_imgui_widgets.cpp
+++ b/my_imgui_widgets.cpp
@@ -70,6 +70,87 @@ ImGui_KeyframeDragging(project_data *File, project_state *State, ui *UI, propert
     }
 }
 
+static void
+ImGui_DebugMemoryViewer(project_data *File, memory *Memory)
+{
+    ImGui::SetNextWindowSize(ImVec2(800, 200));
+    ImGui::Begin("memoryviewer");
+    ImVec2 ViewportMin = ImGui::GetCursorScreenPos();
+    ImVec2 ViewportScale = ImGui::GetContentRegionAvail();
+    ImVec2 ViewportMax = ImVec2(ViewportMin.x + ViewportScale.x, ViewportMin.y + ViewportScale.y);
+
+    memory_table *Table = &Memory->Slot[B_LoadedBitmaps];
+
+    real32 TotalMB = Table->Size/1024/1024;
+    real32 LineAmount = 50;
+    real32 IncrementMB = TotalMB / LineAmount;
+    real32 ScreenIncrement = ViewportScale.x / LineAmount;
+
+    real32 CubeHeight = ImGui::GetFontSize();
+    real32 TotalHeight = CubeHeight*4;
+
+    ImDrawList* draw_list = ImGui::GetWindowDrawList();
+    draw_list->AddRectFilled(ViewportMin, ViewportMax, IM_COL32(50, 50, 50, 255));
+
+    for (float x = 0; x < LineAmount; x++) {
+        uint32 LineColor = IM_COL32(200, 200, 200, 40);
+        ImVec2 Min = ImVec2(ViewportMin.x + ScreenIncrement * x, ViewportMin.y);
+        ImVec2 Max = ImVec2(Min.x + 2, ViewportMax.y);
+        draw_list->AddLine(Min, Max, LineColor);
+    }
+
+    for (uint32 i = 0; i < Table->NumberOfPointers; i++) {
+        if (Memory->Bitmap[i].SourceOwner) {
+        void *DataStart = Memory->Bitmap[i].Data;
+        void *NextDataStart;
+        int pp = 1;
+        for (;;) {
+            if (Memory->Bitmap[i+pp].SourceOwner) {
+                NextDataStart = Memory->Bitmap[i+pp].Data;
+                break;
+            }
+            pp++;
+        }
+        uint64 BytesBetween = (uint8 *)NextDataStart - (uint8 *)DataStart;
+        source *Source = Memory->Bitmap[i].SourceOwner;
+        real32 Pos = Memory_NormalizedPosition(&File->Source[0], File->NumberOfSources, sizeof(source), Source);
+
+        ImVec4 col = ImColor::HSV(Pos, 0.3, 0.6, 1.0f);
+        uint64 BitmapSize = Bitmap_CalcTotalBytes(Source->Info.Width, Source->Info.Height, Source->Info.BytesPerPixel);
+        if (BitmapSize > BytesBetween) {
+            col = ImColor::HSV(Pos, 1.0, 1.0, 1.0f);
+        }
+
+        uint64 DataStart2 = (uint8 *)DataStart - (uint8 *)Table->Address;
+        real32 StartReal = ((real32)DataStart2/1024/1024);
+        ImVec2 Min = ImVec2(ViewportMin.x + (StartReal/IncrementMB * ScreenIncrement), ViewportMin.y + (ViewportScale.y / 2) - (TotalHeight / 2) + TotalHeight*Pos);
+        real32 SizeReal = ((real32)BitmapSize/1024/1024);
+        ImVec2 Size = ImVec2(SizeReal/IncrementMB * ScreenIncrement, CubeHeight);
+        ImGui::SetCursorScreenPos(Min);
+        ImGui::PushID(i);
+        ImGui::PushStyleColor(ImGuiCol_Button, col);
+        char buf2[256];
+        sprintf(buf2, "%i##mempos", Memory->Bitmap[i].Frame);
+        ImGui::Button(buf2, Size);
+        ImGui::PopStyleColor();
+        if (ImGui::IsItemHovered()) {
+            char buf[1024];
+            sprintf(buf, "Source owner: %s\nSize: %.02f MB\n Frame number: %i", Memory->Bitmap[i].SourceOwner->Path, SizeReal, Memory->Bitmap[i].Frame);
+            ImGui::BeginTooltip();
+            ImGui::PushTextWrapPos(ImGui::GetFontSize() * 35.0f);
+            ImGui::TextUnformatted(buf);
+            ImGui::PopTextWrapPos();
+            ImGui::EndTooltip();
+        }
+        ImGui::PopID();
+        ImVec2 Max = ImVec2(ViewportMax.x, Min.y + CubeHeight);
+        // draw_list->AddRectFilled(Min, Max, IM_COL32(200, 200, 200, 255));
+        }
+    }
+
+    ImGui::End();
+}
+
 static void
 ImGui_PropertiesPanel(project_data *File, project_state *State, ui *UI, memory *Memory)
 {
@@ -130,20 +211,10 @@ ImGui_PropertiesPanel(project_data *File, project_state *State, ui *UI, memory *
                     ImGui::PopID();
                 }
             } else if (Effect->DisplayType == levels) {
-                ImGui::Button("asda");
-                // bool ImGui::SliderScalarasda(const char* label, ImGuiDataType data_type, void* p_data, const void* p_min, const void* p_max, const char* format, ImGuiSliderFlags flags)
-                // static int8 p = 0;
-                // static int8 m = 10;
-                // static int8 c = 2;
-                // ImGui::SliderScalarasda("slider s8 full",  ImGuiDataType_S8, &c,  &p,   &m, "%d", ImGuiSliderFlags_None);
-                static real32 p = 0;
-                static real32 m = 1;
-                static real32 c = 2;
-                ImGui::SliderScalar("f2",  ImGuiDataType_Float, &c,  &p,   &m, "%f", ImGuiSliderFlags_Logarithmic);
-                static real32 Max = 0.8;
-                static real32 Min = 0.25;
-                static real32 Mid = 0; // NOTE(fox): "Neutral" is zero, negative one is full black, one is full white.
-                ImGui::SliderLevels("f", &Mid, &Min, &Max);
+                real32 *Min = &Effect->Property[0].CurrentValue.f;
+                real32 *Mid = &Effect->Property[1].CurrentValue.f;
+                real32 *Max = &Effect->Property[2].CurrentValue.f;
+                ImGui::SliderLevels("f", Mid, Min, Max);
             }
         }
     } else {
@@ -297,10 +368,7 @@ ImGui_File(project_data *File, project_state *State, memory *Memory, ui *UI, ImG
 {
     ImGui::Begin("Files");
     ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / io.Framerate, io.Framerate);
-    // if (ImGui::Button("Add source")) {
-    // }
     if (State->DemoButton) {
-        ImGui::SameLine();
         if (ImGui::Button("Generate demo scene")) {
             // CreateDemoScene(File, Memory);
             State->UpdateKeyframes = true;
@@ -317,12 +385,23 @@ ImGui_File(project_data *File, project_state *State, memory *Memory, ui *UI, ImG
             State->GridButton = false;
         }
     }
-    static char Input[1024];
-    ImGui::InputText("##sourceinput", Input, STRING_SIZE);
-    ImGui::SameLine();
-    if (ImGui::Button("Create Layer")) {
-        // AddSource(File, State, Memory, Input);
+    ImGui::Text("Sources:");
+    for (int i = 0; i < File->NumberOfSources; i++) {
+        ImGui::Text(File->Source[i].Path);
+        ImGui::OpenPopupOnItemClick("sourcecontext", ImGuiPopupFlags_MouseButtonRight);
+        if (ImGui::BeginPopup("sourcecontext")) {
+            if (ImGui::MenuItem("Create layer from source")) {
+                Layer_CreateFromSource(File, State, Memory, &File->Source[i]);
+            }
+            ImGui::EndPopup();
+        }
     }
+    // static char Input[1024];
+    // ImGui::InputText("##sourceinput", Input, STRING_SIZE);
+    // ImGui::SameLine();
+    // if (ImGui::Button("Create Layer")) {
+    //     // AddSource(File, State, Memory, Input);
+    // }
 #if DEBUG
     for (int i = 0; i < Debug.WatchedProperties; i++) {
         if (Debug.DebugPropertyType[i] == d_float) {
@@ -340,7 +419,6 @@ ImGui_File(project_data *File, project_state *State, memory *Memory, ui *UI, ImG
 static void
 ImGui_EffectsPanel(project_data *File, project_state *State, memory *Memory, ui *UI, ImGuiIO io)
 {
-#if 0
     ImGui::Begin("Effects list", NULL);
     if (State->RerouteEffects) {
         ImGui::SetKeyboardFocusHere();
@@ -390,7 +468,6 @@ ImGui_EffectsPanel(project_data *File, project_state *State, memory *Memory, ui
         }
     }
     ImGui::End();
-#endif
 }
 
 
@@ -467,9 +544,12 @@ ImGui_Timeline(project_data *File, project_state *State, memory *Memory, ui *UI,
 
 
     ImGui::BeginChild("Topbar", TopbarSize, true, ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoScrollbar);
+    ImGui::Text
+    /*
     ImGui::Button("V", TopbarButtonSize); ImGui::SameLine();
     ImGui::Button("V", TopbarButtonSize); ImGui::SameLine();
     ImGui::Button("V", TopbarButtonSize); ImGui::SameLine();
+    */
 
     ImGui::SetCursorScreenPos(PlayheadPos);
     ImGui::Button("P", ButtonSize);
@@ -688,6 +768,14 @@ ImGui_Timeline(project_data *File, project_state *State, memory *Memory, ui *UI,
         }
         ImGui_SlidingLayer(Layer, &UI->DraggingKeyframeThreshold, io.MouseDelta.x, UI->TimelineZoom, 2);
 
+        for (int a = Layer->StartFrame; a < Layer->EndFrame; a++) {
+            cached_bitmap *Bitmap = Cache_CheckBitmap(Layer->Source, &Layer->BitmapInfo, Memory, a);
+            if (Bitmap) {
+                ImVec2 MinPos = ImVec2(TimelineStartingPos.x + UI->TimelineZoom * a, ImGui::GetCursorScreenPos().y);
+                draw_list->AddRect(MinPos, ImVec2(MinPos.x + UI->TimelineZoom, MinPos.y + 2.0f), ImColor(0, 255, 0, 255));
+            }
+        }
+
         ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(0.0f, ItemSpacing.y * UI->KeyframeSpacing));
         ImGui::SetCursorPosY(ImGui::GetCursorPos().y + (ItemSpacing.y * UI->KeyframeSpacing / 2));
 
diff --git a/prenderer.cpp b/prenderer.cpp
index 7ce738a..24b271c 100644
--- a/prenderer.cpp
+++ b/prenderer.cpp
@@ -3,7 +3,7 @@ static void
 PushRect(rectangle RenderRegion);
 
 static void
-RenderLayerNeon(project_layer *Layer, pixel_buffer *Buffer, rectangle RenderRegion);
+RenderLayerNeon(project_layer *Layer, comp_buffer *Buffer, rectangle RenderRegion);
 static void
 AVX2_RenderLayer(transform_info TransformInfo, comp_buffer *Buffer, rectangle RenderRegion);
 static void
-- 
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