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render: make wlr_renderer_begin return a bool

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Simon Ser 2022-01-12 18:33:34 +01:00 committed by Simon Zeni
parent 23540b5579
commit a541c9510a
2 changed files with 12 additions and 4 deletions
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4
include/wlr/render/wlr_renderer.h
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@ -49,8 +49,10 @@ struct wlr_renderer *wlr_renderer_autocreate(struct wlr_backend *backend);
*
* This should be called after wlr_output_attach_render(). Compositors must call
* wlr_renderer_end() when they are done.
*
* Returns false on failure, in which case compositors shouldn't try rendering.
*/
void wlr_renderer_begin(struct wlr_renderer *r, uint32_t width, uint32_t height);
bool wlr_renderer_begin(struct wlr_renderer *r, uint32_t width, uint32_t height);
/**
* Start a render pass on the provided struct wlr_buffer.
*

12
render/wlr_renderer.c
View file

@ -70,12 +70,15 @@ bool renderer_bind_buffer(struct wlr_renderer *r, struct wlr_buffer *buffer) {
return r->impl->bind_buffer(r, buffer);
}
void wlr_renderer_begin(struct wlr_renderer *r, uint32_t width, uint32_t height) {
bool wlr_renderer_begin(struct wlr_renderer *r, uint32_t width, uint32_t height) {
assert(!r->rendering);
r->impl->begin(r, width, height);
if (!r->impl->begin(r, width, height)) {
return false;
}
r->rendering = true;
return true;
}
bool wlr_renderer_begin_with_buffer(struct wlr_renderer *r,
@ -83,7 +86,10 @@ bool wlr_renderer_begin_with_buffer(struct wlr_renderer *r,
if (!renderer_bind_buffer(r, buffer)) {
return false;
}
wlr_renderer_begin(r, buffer->width, buffer->height);
if (!wlr_renderer_begin(r, buffer->width, buffer->height)) {
renderer_bind_buffer(r, NULL);
return false;
}
r->rendering_with_buffer = true;
return true;
}