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Merge pull request #1390 from ammen99/fix-preferred-read-format

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output: add wlr_output_preferred_read_format()
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emersion 2018-11-24 14:53:20 +01:00 committed by GitHub
commit 88994b18d5
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GPG key ID: 4AEE18F83AFDEB23
5 changed files with 22 additions and 15 deletions
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5
include/wlr/render/wlr_renderer.h
View file

@ -96,11 +96,6 @@ int wlr_renderer_get_dmabuf_formats(struct wlr_renderer *renderer,
*/
int wlr_renderer_get_dmabuf_modifiers(struct wlr_renderer *renderer, int format,
uint64_t **modifiers);
/**
* Get the preferred format for reading pixels.
*/
bool wlr_renderer_preferred_read_format(struct wlr_renderer *renderer,
enum wl_shm_format *fmt);
/**
* Reads out of pixels of the currently bound surface into data. `stride` is in
* bytes.

6
include/wlr/types/wlr_output.h
View file

@ -192,6 +192,12 @@ void wlr_output_effective_resolution(struct wlr_output *output,
* unknown. This is useful for damage tracking.
*/
bool wlr_output_make_current(struct wlr_output *output, int *buffer_age);
/**
* Get the preferred format for reading pixels.
* This function might change the current rendering context.
*/
bool wlr_output_preferred_read_format(struct wlr_output *output,
enum wl_shm_format *fmt);
/**
* Swaps the output buffers. If the time of the frame isn't known, set `when` to
* NULL. If the compositor doesn't support damage tracking, set `damage` to

9
render/wlr_renderer.c
View file

@ -139,15 +139,6 @@ int wlr_renderer_get_dmabuf_modifiers(struct wlr_renderer *r, int format,
return r->impl->get_dmabuf_modifiers(r, format, modifiers);
}
bool wlr_renderer_preferred_read_format(struct wlr_renderer *r,
enum wl_shm_format *fmt) {
if (!r->impl->preferred_read_format || !r->impl->read_pixels) {
return false;
}
*fmt = r->impl->preferred_read_format(r);
return true;
}
bool wlr_renderer_read_pixels(struct wlr_renderer *r, enum wl_shm_format fmt,
uint32_t *flags, uint32_t stride, uint32_t width, uint32_t height,
uint32_t src_x, uint32_t src_y, uint32_t dst_x, uint32_t dst_y,

15
types/wlr_output.c
View file

@ -6,6 +6,7 @@
#include <time.h>
#include <wayland-server.h>
#include <wlr/interfaces/wlr_output.h>
#include <wlr/render/interface.h>
#include <wlr/render/wlr_renderer.h>
#include <wlr/types/wlr_box.h>
#include <wlr/types/wlr_matrix.h>
@ -339,6 +340,20 @@ bool wlr_output_make_current(struct wlr_output *output, int *buffer_age) {
return output->impl->make_current(output, buffer_age);
}
bool wlr_output_preferred_read_format(struct wlr_output *output,
enum wl_shm_format *fmt) {
if (!wlr_output_make_current(output, NULL)) {
return false;
}
struct wlr_renderer *renderer = wlr_backend_get_renderer(output->backend);
if (!renderer->impl->preferred_read_format || !renderer->impl->read_pixels) {
return false;
}
*fmt = renderer->impl->preferred_read_format(renderer);
return true;
}
bool wlr_output_swap_buffers(struct wlr_output *output, struct timespec *when,
pixman_region32_t *damage) {
if (output->frame_pending) {

2
types/wlr_screencopy_v1.c
View file

@ -219,7 +219,7 @@ static void capture_output(struct wl_client *client,
struct wlr_renderer *renderer = wlr_backend_get_renderer(output->backend);
assert(renderer);
if (!wlr_renderer_preferred_read_format(renderer, &frame->format)) {
if (!wlr_output_preferred_read_format(frame->output, &frame->format)) {
wlr_log(WLR_ERROR,
"Failed to capture output: no read format supported by renderer");
goto error;