full support for odd-dimension bitmaps and comps

1 files changed, 14 insertions, 4 deletions

diff --git a/main.h b/main.h
index 801b13e..d5a0126 100644
--- a/main.h
+++ b/main.h
@@ -4,17 +4,25 @@ enum source_type {
     source_image
 };
 
+enum instruction_mode {
+    scalar_only,
+    sse_enabled,
+    avx_enabled
+};
+
 struct pixel_buffer {
     void *OriginalBuffer;
     void *EffectBuffer;
     void *Scratch;
     uint16 Width;
     uint16 Height;
+    // IMPORTANT(fox): Since we're storing 4x4 chunks, I'm opting to pad out each
+    // dimension with an extra 1-3 pixels to make our lookup functions simpler.
+    // This has the cost of extra RAM, but it's a miniscule amount (0.2% extra
+    // data for a worst-case 1080p 16bpc frame, or 140 kb).
+    uint16 FullWidth;
+    uint16 FullHeight;
     uint16 Pitch;
-#if PACKEDRGB
-#else
-    uint32 Channel;
-#endif
     uint16 BytesPerPixel;
     bool32 ToUpdate;  // Set whenever effects or video frames need to be updated.
 };
@@ -246,6 +254,8 @@ struct transform_info {
     real32 YAxisPY;
     real32 LayerWidth;
     real32 LayerHeight;
+    uint32 FullLayerWidth;
+    uint32 FullLayerHeight;
     real32 LayerOpacity;
     real32 OriginX;
     real32 OriginY;