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box-drawing: temporary “fix” for LIGHT ARCs with a8 buffers

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We don’t have a method to draw the arcs using pixman yet. Work around
this by replacing the a8 buffer with an a1 buffer, and render the arcs
using our old, non-antialiased, way.
This commit is contained in:
Daniel Eklöf 2021-05-05 16:34:57 +02:00
parent 5dd8a70905
commit d495da03e1
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GPG key ID: 5BBD4992C116573F
1 changed files with 22 additions and 1 deletions
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23
box-drawing.c
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@ -1225,6 +1225,27 @@ draw_box_drawings_double_vertical_and_horizontal(struct buf *buf)
static void
draw_box_drawings_light_arc(wchar_t wc, struct buf *buf)
{
if (pixman_image_get_format(buf->pix) == PIXMAN_a8) {
/*
* Hack until we’ve implemented ARCs with pixman
*
* Replace the a8 buffer with a a1 buffer, and use our “old”
* non-antialiased technique to draw arcs.
*/
int stride = stride_for_format_and_width(PIXMAN_a1, buf->width);
uint8_t *new_data = xcalloc(buf->height * stride, 1);
pixman_image_t *new_pix = pixman_image_create_bits_no_clear(
PIXMAN_a1, buf->width, buf->height, (uint32_t *)new_data, stride);
pixman_image_unref(buf->pix);
free(buf->data);
buf->data = new_data;
buf->pix = new_pix;
buf->stride = stride;
}
int thick = thickness(LIGHT);
double a = (buf->width - thick) / 2;
@ -2359,7 +2380,7 @@ box_drawing(const struct terminal *term, wchar_t wc)
*glyph = (struct fcft_glyph){
.wc = wc,
.cols = 1,
.pix = pix,
.pix = buf.pix,
.x = -term->font_x_ofs,
.y = term->font_y_ofs + term->fonts[0]->ascent,
.width = width,