Removing fontstash and RFont from codebase
Planning to instead just focus on using VEFontCache.
This commit is contained in:
parent
d6cd65288f
commit
156ddcef97
@ -1,2 +0,0 @@
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package RFont
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@ -1,131 +0,0 @@
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package fontstash
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atlas_add_rect :: proc( ctx : ^Context, )
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{
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}
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atlas_add_skyline_level :: proc (ctx : ^Context, id : u64, x, y, width, height : i32 ) -> (error : AllocatorError)
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{
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error = atlas_insert( ctx, id, x, y + height, width)
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if error != AllocatorError.None {
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ensure( false, "Failed to insert into atlas")
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return
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}
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// Delete skyline segments that fall under the shadow of the new segment.
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for sky_id := id; sky_id < ctx.atlas.num; sky_id += 1
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{
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curr := & ctx.atlas.data[sky_id ]
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next := & ctx.atlas.data[sky_id + 1]
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if curr.x >= next.x + next.width do break
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shrink := i16(next.x + next.width - curr.x)
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curr.x += shrink
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curr.width -= shrink
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if curr.width > 0 do break
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atlas_remove(ctx, sky_id)
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sky_id -= 1
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}
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// Merge same height skyline segments that are next to each other.
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for sky_id := id; sky_id < ctx.atlas.num - 1;
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{
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curr := & ctx.atlas.data[sky_id ]
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next := & ctx.atlas.data[sky_id + 1]
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if curr.y == next.y {
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curr.width += next.width
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atlas_remove(ctx, sky_id + 1)
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}
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else {
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sky_id += 1
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}
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}
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return
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}
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atlas_delete :: proc () {
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delete(Module_Context.atlas)
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}
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atlas_expand :: proc( ctx : ^Context, width, height : i32 )
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{
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if width > ctx.width {
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atlas_insert( ctx, ctx.atlas.num, ctx.width, 0, width - ctx.width )
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}
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ctx.width = width
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ctx.height = height
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}
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atlas_init :: proc( ctx : ^Context, width, height : i32, num_nodes : u32 = Init_Atlas_Nodes )
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{
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error : AllocatorError
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ctx.atlas, error = make( Array(AtlasNode), u64(num_nodes), dbg_name = "font atlas" )
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ensure(error == AllocatorError.None, "Failed to allocate font atlas")
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ctx.width = width
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ctx.height = height
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append( & ctx.atlas, AtlasNode{ width = i16(width)} )
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}
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atlas_insert :: proc( ctx : ^Context, id : u64, x, y, width : i32 ) -> (error : AllocatorError)
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{
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error = append_at( & ctx.atlas, AtlasNode{ i16(x), i16(y), i16(width) }, id )
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return
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}
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atlas_remove :: #force_inline proc( ctx : ^Context, id : u64 ) { remove_at( ctx.atlas, id ) }
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atlas_reset :: proc( ctx : ^Context, width, height : i32 )
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{
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ctx.width = width
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ctx.height = height
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clear( ctx.atlas )
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append( & ctx.atlas, AtlasNode{ width = i16(width)} )
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}
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atlas_rect_fits :: proc( ctx : ^Context, location, width, height : i32 ) -> (max_height : i32)
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{
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// Checks if there is enough space at the location of skyline span 'i',
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// and return the max height of all skyline spans under that at that location,
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// (think tetris block being dropped at that position). Or -1 if no space found.
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atlas := to_slice(ctx.atlas)
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node := atlas[location]
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space_left : i32
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if i32(node.x) + width > ctx.width {
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max_height = -1
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return
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}
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space_left = width;
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y := i32(node.y)
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location := location
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for ; space_left > 0;
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{
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if u64(location) == ctx.atlas.num {
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max_height = -1
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return
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}
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node := atlas[location]
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y := max(y, i32(node.y))
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if y + height > ctx.height {
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max_height = -1
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return
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}
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space_left -= i32(node.width)
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location += 1
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}
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max_height = y
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return
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}
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@ -1,148 +0,0 @@
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package fontstash
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import "base:runtime"
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import "core:slice"
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// Legacy of original implementation
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// Not sure going to use
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Params :: struct {
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parser_kind : ParserKind,
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width, height : i32,
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quad_location : QuadLocation, // (flags)
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render_create : RenderCreateProc,
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render_resize : RenderResizeProc,
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render_update : RenderUpdateProc,
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render_draw : RenderDrawProc,
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render_delete : RenderDelete,
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}
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OnResizeProc :: #type proc(data : rawptr, width, height : u32 )
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OnUpdateProc :: #type proc(data : rawptr, dirty_rect : Rect, texture_data : rawptr )
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Callbacks :: struct {
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resize : OnResizeProc,
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update : OnUpdateProc,
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}
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Context :: struct {
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callstack_ctx : runtime.Context,
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// params : Params,
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parser_kind : ParserKind,
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parser_ctx : ParserContext,
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fonts : Array(Font),
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// Atlas
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atlas : Array(AtlasNode),
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texture_data : []byte,
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width, height : i32,
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// ----
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normalized_size : Vec2,
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verts : [Vertex_Count * 2]f32,
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tcoords : [Vertex_Count * 2]f32,
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colors : [Vertex_Count ]f32,
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vis_stack : StackFixed(VisState, Max_VisStates),
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quad_loc : QuadLocation,
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// dirty rectangle of the texture regnion that was updated
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dirty_rect : Rect,
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handle_error : HandleErrorProc,
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error_userdata : rawptr,
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using callbacks : Callbacks,
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}
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// The package assumes this will exist so long as the owning runtime module is loaded and it has been initialized before usage.
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Module_Context : ^Context
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destroy_context :: proc()
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{
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using Module_Context
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for & font in array_to_slice(fonts) {
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if font.free_data {
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// delete(font.data)
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}
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// delete(font.name)
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delete(font.glyphs)
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}
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delete( fonts )
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delete( atlas )
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delete( array_underlying_slice(texture_data) )
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// delete( vis_stack )
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}
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// For usage during hot-reload, when the instance reference of a context is lost.
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reload_context :: proc( ctx : ^Context )
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{
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Module_Context = ctx
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using Module_Context
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callstack_ctx = context
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}
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rest :: proc() {
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using Module_Context
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// atlas_reset()
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// dirty_rect_reset()
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slice.zero(texture_data)
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for & font in array_to_slice(fonts) {
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// font_lut_reset( & font )
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}
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// atlas_add_white_rect(2, 2)
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// push_vis_state()
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// clear_vis_state()
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}
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// Its recommmended to use an allocator that can handle resizing efficiently for the atlas nodes & texture (at least)
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startup_context :: proc( ctx : ^Context, parser_kind : ParserKind,
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atlas_texture_width, atlas_texture_height : u32, quad_origin_location : QuadLocation,
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allocator := context.allocator )
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{
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Module_Context = ctx
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using Module_Context
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width = cast(i32) atlas_texture_width
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height = cast(i32) atlas_texture_height
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quad_loc = quad_origin_location
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context.allocator = allocator
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callstack_ctx = context
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error : AllocatorError
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fonts, error = make( Array(Font), 8 )
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assert( error == AllocatorError.None, "Failed to allocate fonts array" )
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texture_data_array : Array(byte)
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texture_data_array, error = make( Array(byte), u64(width * height) )
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assert( error == AllocatorError.None, "Failed to allocate fonts array" )
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texture_data = array_to_slice(texture_data_array)
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// TODO(Ed): Verfiy and remove
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{
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quick_check := underlying_slice(texture_data)
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assert( & texture_data_array.header == & quick_check )
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}
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atlas, error = make( Array(AtlasNode), Init_Atlas_Nodes )
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assert( error == AllocatorError.None, "Failed to allocate fonts array" )
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// dirty_rect_reset()
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append(& atlas, AtlasNode { width = i16(width) })
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// atlas_add_white_rect(2, 2)
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// push_vis_state()
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// clear_vis_state()
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}
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@ -1,196 +0,0 @@
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/*
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Yet another port of fontstash.
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I decided to use this instead of the odin port as it deviated from the original, making it difficult to sift through.
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So The code was small enough that I mine as well learn it by porting for my use case.
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TODO(Ed): Add docs here and throughout
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TODO(Ed): This is unfinished...
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Changes from fontstash:
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* This was setup & tested for single-threaded tasks
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* There is an assumed runtime context assigned on startup (user decides where the context memory is)
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Influnce from Odin's vendor Port:
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* Manages a lookup table for frequent glyphs
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* Atlas can resize
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* No scratch allocation, user can specify allocator
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* Supports rendering with nanovg
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Original author's copyright for fonstash.h:
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------------------------------------------------------------------------------
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Copyright (c) 2009-2013 Mikko Mononen memon@inside.org
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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------------------------------------------------------------------------------
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*/
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package fontstash
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Range2_i16 :: struct #raw_union {
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using pts : Vec2_i16,
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using xy : struct {
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x0, y0, x1, y1 : i16,
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}
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}
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Vec2 :: [2]f32
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Vec2_i16 :: [2]i16
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Rect :: [4]f32
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Invalid :: -1
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Hash_Lut_Size :: 256
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Max_Fallbacks :: 20
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Max_VisStates :: 20
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Vertex_Count :: 1024
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Init_Atlas_Nodes :: 256
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FontLuts :: [Hash_Lut_Size]i32
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FontFallbacks :: [Max_Fallbacks]i32
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HandleErrorProc :: #type proc( uptr : rawptr, error, val : i32 )
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RenderCreateProc :: #type proc( uptr : rawptr, width, height : i32 )
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RenderResizeProc :: #type proc( uptr : rawptr, width, height : i32 )
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RenderUpdateProc :: #type proc( uptr : rawptr, rect : ^i32, data : ^u8 )
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RenderDrawProc :: #type proc( uptr : rawptr, verts : ^f32, tcoords : ^f32, colors : ^i32, num_verts : i32 )
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RenderDelete :: #type proc( uptr : rawptr )
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AlignFlag :: enum u32 {
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Left,
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Center,
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Right,
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Top,
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Middle,
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Bottom,
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Baseline,
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}
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AlignFlags :: bit_set[ AlignFlag; u32 ]
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// FONSflags
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QuadLocation :: enum u32 {
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Top_Left = 1,
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Bottom_Left = 2,
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}
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Atlas :: struct {
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dud : i32,
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}
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AtlasNode :: struct {
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x, y, width : i16,
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}
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ErrorCode :: enum u32 {
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Atlas_Full,
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Scratch_Full,
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States_Overflow,
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States_Underflow,
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}
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Quad :: struct {
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x0, y0, s0, t0 : f32,
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x1, y1, s1, t1 : f32,
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}
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Glyph :: struct {
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codepoint : rune,
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index, next : i32,
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size, blur : i16,
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x_advance : i16,
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box : Range2_i16,
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offset : Vec2_i16,
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}
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Font :: struct {
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parser_data : ParserData,
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name : string,
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data : []byte,
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free_data : bool,
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ascender : f32,
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descender : f32,
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line_height : f32,
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glyphs : Array(Glyph),
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lut : FontLuts,
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fallbacks : FontFallbacks,
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num_fallbacks : i32,
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}
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// Visible State tracking used for sharing font visualization preferences.
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VisState :: struct {
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font : i32,
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alignment : i32,
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size : f32,
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color : [4]u8,
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blur : f32,
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spacing : f32,
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}
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TextIter :: struct {
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x, y : f32,
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next_x, next_y : f32,
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scale, spacing : f32,
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isize, iblur : i16,
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font : ^Font,
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prev_glyph_id : i32,
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codepoint : rune,
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utf8_state : rune,
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str : string,
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next : string,
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end : string,
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}
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decode_utf8 :: proc( state : ^rune, codepoint : ^rune, to_decode : byte ) -> bool
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{
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UTF8_Accept :: 0
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UTF8_Reject :: 1
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@static UTF8_Decode_Table := [?]u8 {
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// The first part of the table maps bytes to character classes that
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// to reduce the size of the transition table and create bitmasks.
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 00..1F
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 20..3F
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 40..5F
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 60..7F
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1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, // 80..9F
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7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, // A0..BF
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8,8,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, // C0..DF
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10,3,3,3,3,3,3,3,3,3,3,3,3,4,3,3, 11,6,6,6,5,8,8,8,8,8,8,8,8,8,8,8, // E0..FF
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// The second part is a transition table that maps a combination
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// of a state of the automaton and a character class to a state.
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0,12,24,36,60,96,84,12,12,12,48,72, 12,12,12,12,12,12,12,12,12,12,12,12,
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12, 0,12,12,12,12,12, 0,12, 0,12,12, 12,24,12,12,12,12,12,24,12,24,12,12,
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12,12,12,12,12,12,12,24,12,12,12,12, 12,24,12,12,12,12,12,12,12,24,12,12,
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12,12,12,12,12,12,12,36,12,36,12,12, 12,36,12,12,12,12,12,36,12,36,12,12,
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12,36,12,12,12,12,12,12,12,12,12,12,
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}
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to_decode_rune := rune(to_decode)
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type := UTF8_Decode_Table[to_decode_rune]
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// Update codepoint otherwise initialize it.
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(codepoint^) = ((state^) != UTF8_Accept) ? \
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((to_decode_rune & 0x3F) | ((codepoint^) << 6)) \
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: ((0xFF >> type) & (to_decode_rune))
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||||
(state^) = cast(rune)(UTF8_Decode_Table[256 + (state^) * 16 + rune(type)])
|
||||
return (state^) == UTF8_Accept
|
||||
}
|
||||
@ -1,72 +0,0 @@
|
||||
package fontstash
|
||||
|
||||
import "core:mem"
|
||||
|
||||
AllocatorError :: mem.Allocator_Error
|
||||
|
||||
import "codebase:grime"
|
||||
|
||||
// asserts
|
||||
ensure :: grime.ensure
|
||||
verify :: grime.verify
|
||||
|
||||
// container
|
||||
|
||||
Array :: grime.Array
|
||||
|
||||
array_init :: grime.array_init
|
||||
array_append :: grime.array_append
|
||||
array_append_at :: grime.array_append_at
|
||||
array_clear :: grime.array_clear
|
||||
array_free :: grime.array_free
|
||||
array_remove_at :: grime.array_remove_at
|
||||
array_to_slice :: grime.array_to_slice
|
||||
array_underlying_slice :: grime.array_underlying_slice
|
||||
|
||||
StackFixed :: grime.StackFixed
|
||||
|
||||
stack_clear :: grime.stack_clear
|
||||
stack_push :: grime.stack_push
|
||||
stack_pop :: grime.stack_pop
|
||||
stack_peek_ref :: grime.stack_peek_ref
|
||||
stack_peek :: grime.stack_peek
|
||||
stack_push_contextless :: grime.stack_push_contextless
|
||||
|
||||
//#region("Proc overload mappings")
|
||||
|
||||
append :: proc {
|
||||
grime.array_append_array,
|
||||
grime.array_append_slice,
|
||||
grime.array_append_value,
|
||||
}
|
||||
|
||||
append_at :: proc {
|
||||
grime.array_append_at_slice,
|
||||
grime.array_append_at_value,
|
||||
}
|
||||
|
||||
clear :: proc {
|
||||
array_clear,
|
||||
}
|
||||
|
||||
delete :: proc {
|
||||
array_free,
|
||||
}
|
||||
|
||||
make :: proc {
|
||||
array_init,
|
||||
}
|
||||
|
||||
remove_at :: proc {
|
||||
array_remove_at,
|
||||
}
|
||||
|
||||
to_slice :: proc {
|
||||
array_to_slice,
|
||||
}
|
||||
|
||||
underlying_slice :: proc {
|
||||
array_underlying_slice,
|
||||
}
|
||||
|
||||
//#endregion("Proc overload mappings")
|
||||
@ -1,75 +0,0 @@
|
||||
package fontstash
|
||||
|
||||
import stbtt "vendor:stb/truetype"
|
||||
import freetype "thirdparty:freetype"
|
||||
|
||||
ParserKind :: enum u32 {
|
||||
stb_true_type,
|
||||
freetype,
|
||||
}
|
||||
|
||||
ParserData :: struct #raw_union {
|
||||
stbtt_info : stbtt.fontinfo,
|
||||
// freetype_info :
|
||||
}
|
||||
|
||||
ParserContext :: struct {
|
||||
ft_library : freetype.Library
|
||||
}
|
||||
|
||||
//#region("freetype")
|
||||
|
||||
ft_init :: proc() -> i32 {
|
||||
using Module_Context
|
||||
return 1
|
||||
}
|
||||
|
||||
|
||||
|
||||
//#endregion("freetype")
|
||||
|
||||
//#region("stb_truetype")
|
||||
|
||||
tt_init :: proc() -> i32 { return 1 }
|
||||
|
||||
tt_load_font :: proc( parser_data : ^ParserData, data : []byte ) -> b32
|
||||
{
|
||||
parser_data.stbtt_info.userdata = Module_Context
|
||||
stb_error := stbtt.InitFont( & parser_data.stbtt_info, & data[0], 0 )
|
||||
return stb_error
|
||||
}
|
||||
|
||||
tt_get_font_metrics :: proc( parser_data : ^ParserData, ascent, descent, line_gap : ^i32 ) {
|
||||
stbtt.GetFontVMetrics( & parser_data.stbtt_info, ascent, descent, line_gap )
|
||||
}
|
||||
|
||||
tt_get_pixel_height_scale :: proc( parser_data : ^ParserData, size : f32 ) -> f32
|
||||
{
|
||||
return stbtt.ScaleForPixelHeight( & parser_data.stbtt_info, size )
|
||||
}
|
||||
|
||||
tt_get_glyph_index :: proc( parser_data : ^ParserData, codepoint : rune ) -> i32
|
||||
{
|
||||
return stbtt.FindGlyphIndex( & parser_data.stbtt_info, codepoint )
|
||||
}
|
||||
|
||||
tt_build_glyph_bitmap :: proc( parser_data : ^ParserData, glyph_index : i32,
|
||||
size, scale : f32, advance, left_side_bearing, x0, y0, x1, y1 : ^i32 ) -> i32
|
||||
{
|
||||
stbtt.GetGlyphHMetrics( & parser_data.stbtt_info, glyph_index, advance, left_side_bearing )
|
||||
stbtt.GetGlyphBitmapBox( & parser_data.stbtt_info, glyph_index, scale, scale, x0, y0, x1, y1 )
|
||||
return 1
|
||||
}
|
||||
|
||||
tt_render_glyph_bitmap :: proc( parser_data : ^ParserData, output : [^]byte,
|
||||
out_width, out_height, out_stride : i32, scale_x, scale_y : f32, glyph_index : i32 )
|
||||
{
|
||||
stbtt.MakeGlyphBitmap( & parser_data.stbtt_info, output, out_width, out_height, out_stride, scale_x, scale_y, glyph_index )
|
||||
}
|
||||
|
||||
tt_get_glyph_kern_advance :: proc( parser_data : ^ParserData, glyph_1, glyph_2 : i32 ) -> i32
|
||||
{
|
||||
return stbtt.GetGlyphKernAdvance( & parser_data.stbtt_info, glyph_1, glyph_2 )
|
||||
}
|
||||
|
||||
//#endregion("stb_truetype")
|
||||
Loading…
Reference in New Issue
Block a user