mirrors/wlroots
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/wlroots/wlroots.git synced 2025-11-12 13:29:45 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

render/gles2: remove assumptions about supported formats

Browse source 
We were assuming GL_BGRA_EXT was always supported.

We now check that it's supported for rendering. We fail if it isn't because
this format is specified as "always supported" by the Wayland protocol.

We also check if it's supported for reading pixels. A new preferred_read_format
function returns the preferred format that can be used to read pixels. This is
used by the screencopy protocol.
This commit is contained in:
emersion 2018-10-31 17:20:27 +01:00
parent 675cf8457e
commit 62d646f2b8
No known key found for this signature in database
GPG key ID: 0FDE7BE0E88F5E48
7 changed files with 139 additions and 23 deletions
Download patch file Download diff file Expand all files Collapse all files

20
types/wlr_screencopy_v1.c
View file

@ -4,6 +4,7 @@
#include <wlr/types/wlr_output.h>
#include <wlr/types/wlr_screencopy_v1.h>
#include <wlr/backend.h>
#include <wlr/util/log.h>
#include "wlr-screencopy-unstable-v1-protocol.h"
#include "util/signal.h"
@ -40,6 +41,7 @@ static void frame_handle_output_swap_buffers(struct wl_listener *listener,
struct wlr_output_event_swap_buffers *event = _data;
struct wlr_output *output = frame->output;
struct wlr_renderer *renderer = wlr_backend_get_renderer(output->backend);
assert(renderer);
wl_list_remove(&frame->output_swap_buffers.link);
wl_list_init(&frame->output_swap_buffers.link);
@ -214,11 +216,25 @@ static void capture_output(struct wl_client *client,
wl_list_init(&frame->output_swap_buffers.link);
wl_list_init(&frame->buffer_destroy.link);
frame->format = WL_SHM_FORMAT_XRGB8888;
struct wlr_renderer *renderer = wlr_backend_get_renderer(output->backend);
assert(renderer);
if (!wlr_renderer_preferred_read_format(renderer, &frame->format)) {
wlr_log(WLR_ERROR,
"Failed to capture output: no read format supported by renderer");
goto error;
}
frame->box = buffer_box;
frame->stride = 4 * buffer_box.width;
frame->stride = 4 * buffer_box.width; // TODO: depends on read format
zwlr_screencopy_frame_v1_send_buffer(frame->resource, frame->format,
buffer_box.width, buffer_box.height, frame->stride);
return;
error:
zwlr_screencopy_frame_v1_send_failed(frame->resource);
frame_destroy(frame);
}
static void manager_handle_capture_output(struct wl_client *client,