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render: re-render cursor after ERASE (if cursor is in the erase range)

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Daniel Eklöf 2019-06-21 15:31:35 +02:00
parent a50be28b9d
commit 3338b816a3
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GPG key ID: 5BBD4992C116573F
1 changed files with 83 additions and 72 deletions
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155
main.c
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@ -68,6 +68,81 @@ static const struct wl_callback_listener frame_listener = {
.done = &frame_callback,
};
static void
grid_render_update(struct context *c, struct buffer *buf, const struct damage *dmg)
{
LOG_DBG("damage: UPDATE: %d -> %d",
dmg->range.start, dmg->range.start + dmg->range.length);
const int cols = c->term.grid.cols;
for (int linear_cursor = dmg->range.start,
row = dmg->range.start / cols,
col = dmg->range.start % cols;
linear_cursor < dmg->range.start + dmg->range.length;
linear_cursor++,
col = (col + 1) % cols,
row += col == 0 ? 1 : 0)
{
//LOG_DBG("UPDATE: %d (%dx%d)", linear_cursor, row, col);
const struct cell *cell = &c->term.grid.cells[linear_cursor];
bool has_cursor = c->term.grid.linear_cursor == linear_cursor;
int x = col * c->term.grid.cell_width;
int y = row * c->term.grid.cell_height;
int width = c->term.grid.cell_width;
int height = c->term.grid.cell_height;
//LOG_DBG("cell %dx%d dirty: c=0x%02x (%c)",
// row, col, cell->c[0], cell->c[0]);
double br = (double)((cell->attrs.background >> 24) & 0xff) / 255.0;
double bg = (double)((cell->attrs.background >> 16) & 0xff) / 255.0;
double bb = (double)((cell->attrs.background >> 8) & 0xff) / 255.0;
double fr = (double)((cell->attrs.foreground >> 24) & 0xff) / 255.0;
double fg = (double)((cell->attrs.foreground >> 16) & 0xff) / 255.0;
double fb = (double)((cell->attrs.foreground >> 8) & 0xff) / 255.0;
if (has_cursor)
cairo_set_source_rgba(buf->cairo, fr, fg, fb, 1.0);
else
cairo_set_source_rgba(buf->cairo, br, bg, bb, 1.0);
/* Background */
cairo_rectangle(buf->cairo, x, y, width, height);
cairo_fill(buf->cairo);
cairo_glyph_t *glyphs = NULL;
int num_glyphs = 0;
cairo_status_t status = cairo_scaled_font_text_to_glyphs(
c->font, x, y + c->fextents.ascent,
cell->c, strlen(cell->c), &glyphs, &num_glyphs,
NULL, NULL, NULL);
if (status != CAIRO_STATUS_SUCCESS) {
if (glyphs != NULL)
cairo_glyph_free(glyphs);
continue;
}
if (has_cursor)
cairo_set_source_rgba(buf->cairo, br, bg, bb, 1.0);
else
cairo_set_source_rgba(buf->cairo, fr, fg, fb, 1.0);
cairo_show_glyphs(buf->cairo, glyphs, num_glyphs);
cairo_glyph_free(glyphs);
}
wl_surface_damage_buffer(
c->wl.surface,
0, (dmg->range.start / cols) * c->term.grid.cell_height,
buf->width, (dmg->range.length + cols - 1) / cols * c->term.grid.cell_height);
}
static void
grid_render_erase(struct context *c, struct buffer *buf, const struct damage *dmg)
{
@ -143,81 +218,17 @@ grid_render_erase(struct context *c, struct buffer *buf, const struct damage *dm
cairo_fill(buf->cairo);
wl_surface_damage_buffer(c->wl.surface, x, y, width, height);
}
}
static void
grid_render_update(struct context *c, struct buffer *buf, const struct damage *dmg)
{
LOG_DBG("damage: UPDATE: %d -> %d",
dmg->range.start, dmg->range.start + dmg->range.length);
const int cols = c->term.grid.cols;
for (int linear_cursor = dmg->range.start,
row = dmg->range.start / cols,
col = dmg->range.start % cols;
linear_cursor < dmg->range.start + dmg->range.length;
linear_cursor++,
col = (col + 1) % cols,
row += col == 0 ? 1 : 0)
/* Redraw cursor, if it's inside the erased range */
if (c->term.grid.linear_cursor >= dmg->range.start &&
c->term.grid.linear_cursor < dmg->range.start + dmg->range.length)
{
//LOG_DBG("UPDATE: %d (%dx%d)", linear_cursor, row, col);
const struct cell *cell = &c->term.grid.cells[linear_cursor];
bool has_cursor = c->term.grid.linear_cursor == linear_cursor;
int x = col * c->term.grid.cell_width;
int y = row * c->term.grid.cell_height;
int width = c->term.grid.cell_width;
int height = c->term.grid.cell_height;
//LOG_DBG("cell %dx%d dirty: c=0x%02x (%c)",
// row, col, cell->c[0], cell->c[0]);
double br = (double)((cell->attrs.background >> 24) & 0xff) / 255.0;
double bg = (double)((cell->attrs.background >> 16) & 0xff) / 255.0;
double bb = (double)((cell->attrs.background >> 8) & 0xff) / 255.0;
double fr = (double)((cell->attrs.foreground >> 24) & 0xff) / 255.0;
double fg = (double)((cell->attrs.foreground >> 16) & 0xff) / 255.0;
double fb = (double)((cell->attrs.foreground >> 8) & 0xff) / 255.0;
if (has_cursor)
cairo_set_source_rgba(buf->cairo, fr, fg, fb, 1.0);
else
cairo_set_source_rgba(buf->cairo, br, bg, bb, 1.0);
/* Background */
cairo_rectangle(buf->cairo, x, y, width, height);
cairo_fill(buf->cairo);
cairo_glyph_t *glyphs = NULL;
int num_glyphs = 0;
cairo_status_t status = cairo_scaled_font_text_to_glyphs(
c->font, x, y + c->fextents.ascent,
cell->c, strlen(cell->c), &glyphs, &num_glyphs,
NULL, NULL, NULL);
if (status != CAIRO_STATUS_SUCCESS) {
if (glyphs != NULL)
cairo_glyph_free(glyphs);
continue;
}
if (has_cursor)
cairo_set_source_rgba(buf->cairo, br, bg, bb, 1.0);
else
cairo_set_source_rgba(buf->cairo, fr, fg, fb, 1.0);
cairo_show_glyphs(buf->cairo, glyphs, num_glyphs);
cairo_glyph_free(glyphs);
grid_render_update(
c, buf,
&(struct damage){
.type = DAMAGE_UPDATE,
.range = {.start = c->term.grid.linear_cursor, .length = 1}});
}
wl_surface_damage_buffer(
c->wl.surface,
0, (dmg->range.start / cols) * c->term.grid.cell_height,
buf->width, (dmg->range.length + cols - 1) / cols * c->term.grid.cell_height);
}
static void