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clutter: Make stage capture support fractional scaling

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This commit adds scaling support to clutter_stage_capture_into, which
is currently used when screencasting monitors. This is supposed to
fix graphical issues that arise when using fractional scaling.

Fixes #1131

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1855>
This commit is contained in:
kirbykevinson 2021-05-08 18:22:27 +07:00
parent a49dc78396
commit 64c9c9c5b0
3 changed files with 16 additions and 8 deletions
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4
clutter/clutter/clutter-mutter.h
View File

@ -52,7 +52,9 @@ int64_t clutter_stage_get_frame_counter (ClutterStage *stage);
CLUTTER_EXPORT
void clutter_stage_capture_into (ClutterStage *stage,
cairo_rectangle_int_t *rect,
uint8_t *data);
float scale,
uint8_t *data,
int stride);
CLUTTER_EXPORT
void clutter_stage_capture_view_into (ClutterStage *stage,

11
clutter/clutter/clutter-stage.c
View File

@ -3272,14 +3272,13 @@ clutter_stage_capture_view_into (ClutterStage *stage,
void
clutter_stage_capture_into (ClutterStage *stage,
cairo_rectangle_int_t *rect,
uint8_t *data)
float scale,
uint8_t *data,
int stride)
{
ClutterStagePrivate *priv = stage->priv;
GList *l;
int bpp = 4;
int stride;
stride = rect->width * 4;
for (l = _clutter_stage_window_get_views (priv->impl); l; l = l->next)
{
@ -3296,8 +3295,8 @@ clutter_stage_capture_into (ClutterStage *stage,
cairo_region_get_extents (region, &capture_rect);
cairo_region_destroy (region);
x_offset = capture_rect.x - rect->x;
y_offset = capture_rect.y - rect->y;
x_offset = roundf ((capture_rect.x - rect->x) * scale);
y_offset = roundf ((capture_rect.y - rect->y) * scale);
clutter_stage_capture_view_into (stage, view,
&capture_rect,

9
src/backends/meta-screen-cast-monitor-stream-src.c
View File

@ -528,11 +528,18 @@ meta_screen_cast_monitor_stream_src_record_to_buffer (MetaScreenCastStreamSrc *
ClutterStage *stage;
MetaMonitor *monitor;
MetaLogicalMonitor *logical_monitor;
float scale;
monitor = get_monitor (monitor_src);
logical_monitor = meta_monitor_get_logical_monitor (monitor);
stage = get_stage (monitor_src);
clutter_stage_capture_into (stage, &logical_monitor->rect, data);
if (meta_is_stage_views_scaled ())
scale = meta_logical_monitor_get_scale (logical_monitor);
else
scale = 1.0;
clutter_stage_capture_into (stage, &logical_monitor->rect, scale, data, stride);
switch (meta_screen_cast_stream_get_cursor_mode (stream))
{