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render/egl: introduce wlr_egl_unset_current

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This function can be called after wlr_egl_make_current to cleanup the
EGL context. This avoids having lingering EGL contexts that make things
work by chance.

Closes: https://github.com/swaywm/wlroots/issues/2197
This commit is contained in:
Simon Ser 2020-05-19 11:54:59 +02:00 • committed by Drew DeVault
parent 781ed1ff02
commit 1edc42157b
8 changed files with 62 additions and 29 deletions
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17
backend/headless/output.c
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@ -35,6 +35,8 @@ static bool create_fbo(struct wlr_headless_output *output,
GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
wlr_egl_unset_current(output->backend->egl);
if (status != GL_FRAMEBUFFER_COMPLETE) {
wlr_log(WLR_ERROR, "Failed to create FBO");
return false;
@ -52,6 +54,9 @@ static void destroy_fbo(struct wlr_headless_output *output) {
glDeleteFramebuffers(1, &output->fbo);
glDeleteRenderbuffers(1, &output->rbo);
wlr_egl_unset_current(output->backend->egl);
output->fbo = 0;
output->rbo = 0;
}
@ -125,21 +130,23 @@ static bool output_commit(struct wlr_output *wlr_output) {
}
if (wlr_output->pending.committed & WLR_OUTPUT_STATE_BUFFER) {
glBindFramebuffer(GL_FRAMEBUFFER, 0);
wlr_egl_unset_current(output->backend->egl);
// Nothing needs to be done for FBOs
wlr_output_send_present(wlr_output, NULL);
}
wlr_egl_make_current(output->backend->egl, EGL_NO_SURFACE, NULL);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
return true;
}
static void output_rollback(struct wlr_output *wlr_output) {
struct wlr_headless_output *output =
headless_output_from_output(wlr_output);
wlr_egl_make_current(output->backend->egl, EGL_NO_SURFACE, NULL);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
if (wlr_output->pending.committed & WLR_OUTPUT_STATE_BUFFER) {
glBindFramebuffer(GL_FRAMEBUFFER, 0);
wlr_egl_unset_current(output->backend->egl);
}
}
static void output_destroy(struct wlr_output *wlr_output) {