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backend: egl: simplify getting a framebuffer configuration

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we're using the first available framebuffer configuration that
meets our needs so there is no need to ask for more than one
This commit is contained in:
Maxim Solovyov 2023-01-09 04:20:53 +03:00
parent 60ac2b64db
commit 29342e7cea
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1 changed files with 5 additions and 13 deletions
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18
src/backend/gl/egl.c
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@ -166,14 +166,9 @@ static backend_t *egl_init(session_t *ps) {
goto end;
}
int ncfgs = 0;
if (eglGetConfigs(gd->display, NULL, 0, &ncfgs) != EGL_TRUE) {
log_error("Failed to get EGL configs.");
goto end;
}
auto visual_info = x_get_visual_info(ps->c, ps->vis);
EGLConfig *cfgs = ccalloc(ncfgs, EGLConfig);
EGLConfig config = NULL;
int nconfigs = 1;
// clang-format off
if (eglChooseConfig(gd->display,
(EGLint[]){
@ -186,17 +181,14 @@ static backend_t *egl_init(session_t *ps) {
EGL_STENCIL_SIZE, 1,
EGL_CONFIG_CAVEAT, EGL_NONE,
EGL_NONE,
}, cfgs, ncfgs, &ncfgs) != EGL_TRUE) {
}, &config, nconfigs, &nconfigs) != EGL_TRUE) {
log_error("Failed to choose EGL config for the root window.");
goto end;
}
// clang-format on
EGLConfig target_cfg = cfgs[0];
free(cfgs);
gd->target_win = eglCreatePlatformWindowSurfaceProc(
gd->display, target_cfg, (xcb_window_t[]){session_get_target_window(ps)}, NULL);
gd->display, config, (xcb_window_t[]){session_get_target_window(ps)}, NULL);
if (gd->target_win == EGL_NO_SURFACE) {
log_error("Failed to create EGL surface.");
goto end;
@ -207,7 +199,7 @@ static backend_t *egl_init(session_t *ps) {
goto end;
}
gd->ctx = eglCreateContext(gd->display, target_cfg, NULL, NULL);
gd->ctx = eglCreateContext(gd->display, config, NULL, NULL);
if (gd->ctx == EGL_NO_CONTEXT) {
log_error("Failed to get GLX context.");
goto end;