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output: add wlr_output_begin_render_pass()

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Simon Ser 2023-04-17 15:33:27 +02:00 committed by Alexander Orzechowski
parent 95062904c7
commit 93a6acae9f
2 changed files with 30 additions and 0 deletions
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7
include/wlr/types/wlr_output.h
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@ -582,6 +582,13 @@ void wlr_output_state_set_buffer(struct wlr_output_state *state,
*/
bool wlr_output_configure_primary_swapchain(struct wlr_output *output,
const struct wlr_output_state *state, struct wlr_swapchain **swapchain);
/**
* Begin a render pass on this output.
*
* Same as wlr_output_attach_render(), but returns a struct wlr_render_pass.
*/
struct wlr_render_pass *wlr_output_begin_render_pass(struct wlr_output *output,
struct wlr_output_state *state, int *buffer_age);
/**

23
types/output/render.c
View file

@ -247,3 +247,26 @@ uint32_t wlr_output_preferred_read_format(struct wlr_output *output) {
return fmt;
}
struct wlr_render_pass *wlr_output_begin_render_pass(struct wlr_output *output,
struct wlr_output_state *state, int *buffer_age) {
if (!wlr_output_configure_primary_swapchain(output, state, &output->swapchain)) {
return NULL;
}
struct wlr_buffer *buffer = wlr_swapchain_acquire(output->swapchain, buffer_age);
if (buffer == NULL) {
return NULL;
}
struct wlr_renderer *renderer = output->renderer;
assert(renderer != NULL);
struct wlr_render_pass *pass = wlr_renderer_begin_buffer_pass(renderer, buffer);
if (pass == NULL) {
return NULL;
}
wlr_output_state_set_buffer(state, buffer);
wlr_buffer_unlock(buffer);
return pass;
}