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scrolling region: wip

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Daniel Eklöf 2019-06-23 21:12:32 +02:00
parent 7cc9be01f4
commit 2fe7145aff
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GPG key ID: 5BBD4992C116573F
6 changed files with 199 additions and 77 deletions
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18
main.c
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@ -259,10 +259,10 @@ grid_render_scroll(struct context *c, struct buffer *buf,
const int scrolling_region
= c->term.grid.scrolling_region.end - c->term.grid.scrolling_region.start;
int dst_y = (c->term.grid.scrolling_region.start + 0) * c->term.grid.cell_height;
int src_y = (c->term.grid.scrolling_region.start + dmg->scroll.lines) * c->term.grid.cell_height;
int dst_y = (c->term.grid.scrolling_region.start + dmg->scroll.offset + 0) * c->term.grid.cell_height;
int src_y = (c->term.grid.scrolling_region.start + dmg->scroll.offset + dmg->scroll.lines) * c->term.grid.cell_height;
int width = buf->width;
int height = (scrolling_region - dmg->scroll.lines) * c->term.grid.cell_height;
int height = (scrolling_region - dmg->scroll.offset - dmg->scroll.lines) * c->term.grid.cell_height;
const uint32_t stride = cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, width);
@ -281,6 +281,8 @@ grid_render_scroll(struct context *c, struct buffer *buf,
wl_surface_damage_buffer(c->wl.surface, 0, dst_y, width, height);
assert(dmg->scroll.offset == 0 && "todo");
const int cols = c->term.grid.cols;
struct damage erase = {
.type = DAMAGE_ERASE,
@ -301,10 +303,10 @@ grid_render_scroll_reverse(struct context *c, struct buffer *buf,
const int scrolling_region =
c->term.grid.scrolling_region.end - c->term.grid.scrolling_region.start;
int src_y = (c->term.grid.scrolling_region.start + 0) * c->term.grid.cell_height;
int dst_y = (c->term.grid.scrolling_region.start + dmg->scroll.lines) * c->term.grid.cell_height;
int src_y = (c->term.grid.scrolling_region.start + dmg->scroll.offset + 0) * c->term.grid.cell_height;
int dst_y = (c->term.grid.scrolling_region.start + dmg->scroll.offset + dmg->scroll.lines) * c->term.grid.cell_height;
int width = buf->width;
int height = (scrolling_region - dmg->scroll.lines) * c->term.grid.cell_height;
int height = (scrolling_region - dmg->scroll.offset - dmg->scroll.lines) * c->term.grid.cell_height;
const uint32_t stride = cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, width);
@ -327,7 +329,7 @@ grid_render_scroll_reverse(struct context *c, struct buffer *buf,
struct damage erase = {
.type = DAMAGE_ERASE,
.range = {
.start = c->term.grid.scrolling_region.start * cols,
.start = (c->term.grid.scrolling_region.start + dmg->scroll.offset) * cols,
.length = dmg->scroll.lines * cols
},
};
@ -351,10 +353,12 @@ grid_render(struct context *c)
tll_foreach(c->term.grid.damage, it) {
switch (it->item.type) {
case DAMAGE_ERASE:
case DAMAGE_ERASE_NO_SCROLL:
grid_render_erase(c, buf, &it->item);
break;
case DAMAGE_UPDATE:
case DAMAGE_UPDATE_NO_SCROLL:
grid_render_update(c, buf, &it->item);
break;