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screencopy_v1: only bind, not render with, buffer in shm copy path

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wlr_renderer_read_pixels does not need to be called inside a render
pass; rather, it only needs to have the correct buffer bound to
the renderer. This commit optimizes the implementation of
frame_shm_copy(...) by only binding the source buffer instead of
starting a no-op render pass with it.
This commit is contained in:
Manuel Stoeckl 2023-09-11 19:59:41 -04:00
parent 6c54c34713
commit dbc7a5cada
1 changed files with 3 additions and 2 deletions
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5
types/wlr_screencopy_v1.c
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@ -11,6 +11,7 @@
#include <wlr/util/log.h>
#include "wlr-screencopy-unstable-v1-protocol.h"
#include "render/pixel_format.h"
#include "render/wlr_renderer.h"
#define SCREENCOPY_MANAGER_VERSION 3
@ -208,12 +209,12 @@ static bool frame_shm_copy(struct wlr_screencopy_frame_v1 *frame,
}
bool ok = false;
if (!wlr_renderer_begin_with_buffer(renderer, src_buffer)) {
if (!renderer_bind_buffer(renderer, src_buffer)) {
goto out;
}
ok = wlr_renderer_read_pixels(renderer, format,
stride, width, height, x, y, 0, 0, data);
wlr_renderer_end(renderer);
renderer_bind_buffer(renderer, NULL);
out:
wlr_buffer_end_data_ptr_access(frame->buffer);