mirror of
https://github.com/terrapkg/packages.git
synced 2026-05-31 17:11:56 +00:00
Kyle Gospodnetich
89 lines
2.9 KiB
Diff
89 lines
2.9 KiB
Diff
diff --git a/src/gallium/frontends/dri/loader_dri3_helper.c b/src/gallium/frontends/dri/loader_dri3_helper.c
|
|
index 2c8caba08fd..2c9159672dc 100644
|
|
--- a/src/gallium/frontends/dri/loader_dri3_helper.c
|
|
+++ b/src/gallium/frontends/dri/loader_dri3_helper.c
|
|
@@ -297,6 +297,30 @@ dri3_update_max_num_back(struct loader_dri3_drawable *draw)
|
|
}
|
|
}
|
|
|
|
+static unsigned
|
|
+gamescope_swapchain_override()
|
|
+{
|
|
+ const char *path = getenv("GAMESCOPE_LIMITER_FILE");
|
|
+ if (!path)
|
|
+ return 0;
|
|
+
|
|
+ static simple_mtx_t mtx = SIMPLE_MTX_INITIALIZER;
|
|
+ static int fd = -1;
|
|
+
|
|
+ simple_mtx_lock(&mtx);
|
|
+ if (fd < 0) {
|
|
+ fd = open(path, O_RDONLY);
|
|
+ }
|
|
+ simple_mtx_unlock(&mtx);
|
|
+
|
|
+ if (fd < 0)
|
|
+ return 0;
|
|
+
|
|
+ uint32_t override_value = 0;
|
|
+ pread(fd, &override_value, sizeof(override_value), 0);
|
|
+ return override_value;
|
|
+}
|
|
+
|
|
void
|
|
loader_dri3_set_swap_interval(struct loader_dri3_drawable *draw, int interval)
|
|
{
|
|
@@ -311,10 +335,12 @@ loader_dri3_set_swap_interval(struct loader_dri3_drawable *draw, int interval)
|
|
* PS. changing from value A to B and A < B won't cause swap out of order but
|
|
* may still gets wrong target_msc value at the beginning.
|
|
*/
|
|
- if (draw->swap_interval != interval)
|
|
+ if (draw->orig_swap_interval != interval)
|
|
loader_dri3_swapbuffer_barrier(draw);
|
|
|
|
- draw->swap_interval = interval;
|
|
+ draw->orig_swap_interval = interval;
|
|
+ if (gamescope_swapchain_override() != 1)
|
|
+ draw->swap_interval = interval;
|
|
}
|
|
|
|
static void
|
|
@@ -443,6 +469,12 @@ loader_dri3_drawable_init(xcb_connection_t *conn,
|
|
|
|
draw->swap_interval = dri_get_initial_swap_interval(draw->dri_screen_render_gpu);
|
|
|
|
+ draw->orig_swap_interval = draw->swap_interval;
|
|
+
|
|
+ unsigned gamescope_override = gamescope_swapchain_override();
|
|
+ if (gamescope_override == 1)
|
|
+ draw->swap_interval = 1;
|
|
+
|
|
dri3_update_max_num_back(draw);
|
|
|
|
/* Create a new drawable */
|
|
@@ -1085,6 +1117,12 @@ loader_dri3_swap_buffers_msc(struct loader_dri3_drawable *draw,
|
|
if (draw->type == LOADER_DRI3_DRAWABLE_WINDOW) {
|
|
dri3_fence_reset(draw->conn, back);
|
|
|
|
+ unsigned gamescope_override = gamescope_swapchain_override();
|
|
+ if (gamescope_override == 1)
|
|
+ draw->swap_interval = 1;
|
|
+ else
|
|
+ draw->swap_interval = draw->orig_swap_interval;
|
|
+
|
|
/* Compute when we want the frame shown by taking the last known
|
|
* successful MSC and adding in a swap interval for each outstanding swap
|
|
* request. target_msc=divisor=remainder=0 means "Use glXSwapBuffers()
|
|
diff --git a/src/gallium/frontends/dri/loader_dri3_helper.h b/src/gallium/frontends/dri/loader_dri3_helper.h
|
|
index 26f138d1b83..3f0f3f66fac 100644
|
|
--- a/src/gallium/frontends/dri/loader_dri3_helper.h
|
|
+++ b/src/gallium/frontends/dri/loader_dri3_helper.h
|
|
@@ -169,6 +169,7 @@ struct loader_dri3_drawable {
|
|
bool block_on_depleted_buffers;
|
|
bool queries_buffer_age;
|
|
int swap_interval;
|
|
+ int orig_swap_interval;
|
|
|
|
const struct loader_dri3_vtable *vtable;
|
|
|