misc changes

code/grime/hashing.odin

@@ -0,0 +1,5 @@
+package grime
+
+djb8_hash :: #force_inline proc "contextless" ( hash : ^u64, bytes : []byte ) {
+	for value in bytes do (hash^) = (( (hash^) << 8) + (hash^) ) + u64(value)
+}

code/grime/memory.odin

@@ -94,4 +94,8 @@ memory_aign_forward :: #force_inline proc( address, alignment : uintptr) -> uint
 
 //endregion Memory Math
 
-swap :: #force_inline proc( a, b : ^ $Type ) -> ( ^ Type, ^ Type ) { return b, a }
+swap :: #force_inline proc "contextless" ( a, b : ^ $Type ) -> ( ^ Type, ^ Type ) { return b, a }
+
+to_bytes :: #force_inline proc "contextless" ( typed_block : ^$Type ) -> []byte {
+	return slice_ptr( transmute(^byte) typed_block, size_of(Type) )
+}

code/sectr/font/render_sokol.odin

@@ -169,14 +169,14 @@ font_provider_setup_sokol_gfx_objects :: proc( ctx : ^VE_RenderData, ve_ctx : ve
 		glyph_rt_sampler = sokol_gfx.make_sampler( SamplerDescription {
 			min_filter     = Image_Filter,
 			mag_filter     = Image_Filter,
-			mipmap_filter  = Filter.LINEAR,
+			mipmap_filter  = Filter.NEAREST,
 			wrap_u         = .CLAMP_TO_EDGE,
 			wrap_v         = .CLAMP_TO_EDGE,
 			min_lod        = -1000.0,
 			max_lod        =  1000.0,
 			border_color   = BorderColor.OPAQUE_BLACK,
 			compare        = .NEVER,
-			max_anisotropy = 16,
+			max_anisotropy = 1,
 		})
 		verify( sokol_gfx.query_sampler_state( glyph_rt_sampler) < ResourceState.FAILED, "Failed to make atlas_rt_sampler" )
 

code/sectr/grime/mappings.odin

@@ -4,7 +4,8 @@ package sectr
 #region("base")
 
 import "base:builtin"
-	copy :: builtin.copy
+	copy       :: builtin.copy
+	// byte_slice :: builtin.byte_slice
 
 import "base:intrinsics"
 	mem_zero       :: intrinsics.mem_zero
@@ -51,6 +52,26 @@ import fmt_io "core:fmt"
 	str_tmp_from_any :: fmt_io.tprint
 
 import "core:math"
+	ceil_f16   :: math.ceil_f16
+	ceil_f16le :: math.ceil_f16le
+	ceil_f16be :: math.ceil_f16be
+	ceil_f32   :: math.ceil_f32
+	ceil_f32le :: math.ceil_f32le
+	ceil_f32be :: math.ceil_f32be
+	ceil_f64   :: math.ceil_f64
+	ceil_f64le :: math.ceil_f64le
+	ceil_f64be :: math.ceil_f64be
+
+	floor_f16   :: math.floor_f16
+	floor_f16le :: math.floor_f16le
+	floor_f16be :: math.floor_f16be
+	floor_f32   :: math.floor_f32
+	floor_f32le :: math.floor_f32le
+	floor_f32be :: math.floor_f32be
+	floor_f64   :: math.floor_f64
+	floor_f64le :: math.floor_f64le
+	floor_f64be :: math.floor_f64be
+
 	lerp  :: math.lerp
 
 import "core:math/bits"
@@ -239,6 +260,9 @@ import "codebase:grime"
 	file_exists :: grime.file_exists
 	file_rewind :: grime.file_rewind
 
+	// hashing
+	djb8_hash :: grime.djb8_hash
+
 	// linked lists
 	LL_Node :: grime.LL_Node
 
@@ -278,6 +302,7 @@ import "codebase:grime"
 	memory_after_header      :: grime.memory_after_header
 	memory_after             :: grime.memory_after
 	swap                     :: grime.swap
+	to_bytes                 :: grime.to_bytes
 
 	// strings
 	StrRunesPair :: grime.StrRunesPair
@@ -346,6 +371,20 @@ bivec3 :: proc {
 	vec3_to_bivec3,
 }
 
+ceil :: proc {
+	math.ceil_f16,
+	math.ceil_f16le,
+	math.ceil_f16be,
+	math.ceil_f32,
+	math.ceil_f32le,
+	math.ceil_f32be,
+	math.ceil_f64,
+	math.ceil_f64le,
+	math.ceil_f64be,
+
+	// ceil_vec2,
+}
+
 clear :: proc{
 	grime.array_clear,
 }

code/sectr/ui/core/base.odin

@@ -274,6 +274,13 @@ ui_graph_build_end :: proc( ui : ^UI_State )
 		for current := ui.root.first; current != nil; 
 				current  = ui_box_tranverse_next_depth_first( current, bypass_intersection_test = true, ctx = ui )
 		{
+			// prev_box := ui_prev_cached_box( current )
+			// prev_hash : u64
+			// curr_hash : u64
+			// djb8_hash( & prev_hash, to_bytes(& prev_box.layout) )
+			// djb8_hash( & curr_hash, to_bytes(& current.layout) )
+			// current.computed.fresh = prev_hash == curr_hash && (current.parent != nil && current.parent.computed.fresh)
+
 			if ! current.computed.fresh
 			{
 				if len(current.text.str) > 0 {