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Made sure alpha sharpen is only applied when the color alpha is at or above 1.0

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Edward R. Gonzalez
2025-01-11 08:47:11 -05:00
parent d56e1d608c
commit dbe97a7176
4 changed files with 85 additions and 41 deletions
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38
vefontcache/vefontcache.odin
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@@ -697,7 +697,7 @@ auto_pop_vpz :: #force_inline proc( ctx : ^Context, camera : VPZ_Transform ) {
//#endregion("scoping")
//#region("draw_list generation")
//#region("misc")
get_cursor_pos :: #force_inline proc "contextless" ( ctx : Context ) -> Vec2 { return ctx.cursor_pos }
@@ -759,6 +759,10 @@ set_snap_glyph_render_height :: #force_inline proc( ctx : ^Context, should_snap
ctx.glyph_buffer.snap_glyph_height = cast(f32) i32(should_snap)
}
//#endreigon("misc")
//#region("draw_list generation")
/* The most fundamental interface-level draw shape procedure.
Context's stack is not used. Only modifications for alpha sharpen and px_scalar are applied.
view, position, and scale are expected to be in unsigned normalized space:
@@ -799,8 +803,9 @@ draw_text_shape_normalized_space :: #force_inline proc( ctx : ^Context,
entry := ctx.entries[ font ]
adjusted_colour := colour
adjusted_colour.a += ctx.alpha_sharpen
should_alpha_sharpen := cast(f32) cast(i32) (colour.a >= 1.0)
adjusted_colour := colour
adjusted_colour.a += ctx.alpha_sharpen * should_alpha_sharpen
target_px_size := px_size * ctx.px_scalar
target_scale := scale * (1 / ctx.px_scalar)
@@ -860,8 +865,9 @@ draw_text_normalized_space :: proc( ctx : ^Context,
ctx.cursor_pos = {}
entry := ctx.entries[ font ]
adjusted_colour := colour
adjusted_colour.a += ctx.alpha_sharpen
should_alpha_sharpen := cast(f32) cast(i32) (colour.a >= 1.0)
adjusted_colour := colour
adjusted_colour.a += ctx.alpha_sharpen * should_alpha_sharpen
// Does nothing when px_scalar is 1.0
target_px_size := px_size * ctx.px_scalar
@@ -930,8 +936,9 @@ draw_text_shape_view_space :: #force_inline proc( ctx : ^Context,
entry := ctx.entries[ font ]
adjusted_colour := colour
adjusted_colour.a = 1.0 + ctx.alpha_sharpen
should_alpha_sharpen := cast(f32) cast(i32) (colour.a >= 1.0)
adjusted_colour := colour
adjusted_colour.a += ctx.alpha_sharpen * should_alpha_sharpen
resolved_size, zoom_scale := resolve_zoom_size_scale( zoom, px_size, scale, ctx.zoom_px_interval, 2, 999.0, view )
target_position, norm_scale := get_normalized_position_scale( position, zoom_scale, view )
@@ -998,8 +1005,9 @@ draw_text_view_space :: proc(ctx : ^Context,
ctx.cursor_pos = {}
entry := ctx.entries[ font ]
adjusted_colour := colour
adjusted_colour.a += ctx.alpha_sharpen
should_alpha_sharpen := cast(f32) cast(i32) (colour.a >= 1.0)
adjusted_colour := colour
adjusted_colour.a += ctx.alpha_sharpen * should_alpha_sharpen
resolved_size, zoom_scale := resolve_zoom_size_scale( zoom, px_size, scale, ctx.zoom_px_interval, 2, 999.0, view )
target_position, norm_scale := get_normalized_position_scale( position, zoom_scale, view )
@@ -1074,8 +1082,10 @@ draw_shape :: proc( ctx : ^Context, position, scale : Vec2, shape : Shaped_Text
ctx.cursor_pos = {}
entry := ctx.entries[ font ]
adjusted_colour := peek(stack.colour)
adjusted_colour.a += ctx.alpha_sharpen
colour := peek(stack.colour)
should_alpha_sharpen := cast(f32) cast(i32) (colour.a >= 1.0)
adjusted_colour := colour
adjusted_colour.a += ctx.alpha_sharpen * should_alpha_sharpen
px_size := peek(stack.font_size)
zoom := peek(stack.zoom)
@@ -1152,8 +1162,10 @@ draw_text :: proc( ctx : ^Context, position, scale : Vec2, text_utf8 : string,
ctx.cursor_pos = {}
entry := ctx.entries[ font ]
adjusted_colour := peek(stack.colour)
adjusted_colour.a += ctx.alpha_sharpen
colour := peek(stack.colour)
should_alpha_sharpen := cast(f32) cast(i32) (colour.a >= 1.0)
adjusted_colour := colour
adjusted_colour.a += ctx.alpha_sharpen * should_alpha_sharpen
px_size := peek(stack.font_size)
zoom := peek(stack.zoom)