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cull commands that result in zero-area bounding boxes

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This commit is contained in:
Alessandro Mauri 2024-12-23 15:49:46 +01:00
parent 87de68028a
commit 169b5e1dfd
2 changed files with 55 additions and 38 deletions
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45
src/ugui_cmd.c3
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@ -29,6 +29,7 @@ struct CmdUpdateAtlas {
struct CmdSprite {
Rect rect;
Rect texture_rect;
Color hue;
Id texture_id;
}
@ -48,15 +49,29 @@ struct Cmd {
}
}
macro bool cull_rect(Rect rect, Rect clip = {0,0,short.max,short.max})
{
bool no_area = rect.w <= 0 || rect.h <= 0;
return no_area || !rect.collides(clip);
}
// FIXME: this whole thing could be done at compile time, maybe
macro Ctx.push_cmd(&ctx, Cmd *cmd)
{
Rect rect;
switch (cmd.type) {
case CMD_RECT: rect = cmd.rect.rect;
case CMD_SPRITE: rect = cmd.sprite.rect;
default: return ctx.cmd_queue.enqueue(cmd);
}
if (cull_rect(rect, ctx.div_scissor)) return;
return ctx.cmd_queue.enqueue(cmd);
}
// FIXME: is this really the best solution?
// "rect" is the bounding box of the element, which includes the border and the padding (so not just the content)
fn void! Ctx.push_rect(&ctx, Rect rect, Color color, bool do_border = false, bool do_padding = false, bool do_radius = false)
{
// FIXME: this should be culled higher up, maybe
if (rect.w <= 0 || rect.h <= 0) {
return;
}
Rect border = ctx.style.border;
Rect padding = ctx.style.padding;
ushort radius = ctx.style.radius;
@ -69,7 +84,7 @@ fn void! Ctx.push_rect(&ctx, Rect rect, Color color, bool do_border = false, boo
.rect.color = border_color,
.rect.radius = do_radius ? radius : 0,
};
ctx.cmd_queue.enqueue(&cmd)!;
ctx.push_cmd(&cmd)!;
}
Cmd cmd = {
@ -83,22 +98,24 @@ fn void! Ctx.push_rect(&ctx, Rect rect, Color color, bool do_border = false, boo
.rect.color = color,
.rect.radius = do_radius ? radius : 0,
};
ctx.cmd_queue.enqueue(&cmd)!;
if (cull_rect(cmd.rect.rect, ctx.div_scissor)) return;
ctx.push_cmd(&cmd)!;
}
// TODO: add texture id
fn void! Ctx.push_sprite(&ctx, Rect bounds, Rect texture, Id texture_id)
fn void! Ctx.push_sprite(&ctx, Rect bounds, Rect texture, Id texture_id, Color hue = uint_to_rgba(0xffffffff))
{
Cmd cmd = {
.type = CMD_SPRITE,
.sprite.rect = bounds,
.sprite.texture_rect = texture,
.sprite.texture_id = texture_id,
.sprite.hue = hue,
};
ctx.cmd_queue.enqueue(&cmd)!;
ctx.push_cmd(&cmd)!;
}
fn void! Ctx.push_string(&ctx, Rect bounds, String text)
fn void! Ctx.push_string(&ctx, Rect bounds, String text, Color hue = uint_to_rgba(0xffffffff))
{
if (text.len == 0) {
return;
@ -136,9 +153,7 @@ fn void! Ctx.push_string(&ctx, Rect bounds, String text)
.h = gp.h,
};
// push the sprite only if it collides with the bounds
if (gb.collides(bounds)) {
ctx.push_sprite(gb, gt, texture_id)!;
}
if (!cull_rect(gb, bounds)) ctx.push_sprite(gb, gt, texture_id, hue)!;
line_len += gp.adv;
} else if (cp == '\n'){
orig.y += line_height + line_gap;
@ -164,7 +179,7 @@ fn void! Ctx.push_update_atlas(&ctx, Atlas* atlas)
.bpp = (ushort)atlas.type.bpp(),
},
};
ctx.cmd_queue.enqueue(&up)!;
ctx.push_cmd(&up)!;
}
fn void! Ctx.push_scissor(&ctx, Rect rect)
@ -173,5 +188,5 @@ fn void! Ctx.push_scissor(&ctx, Rect rect)
.type = CMD_SCISSOR,
.scissor.rect = rect.intersection(ctx.div_scissor),
};
ctx.cmd_queue.enqueue(&sc)!;
ctx.push_cmd(&sc)!;
}