egl: print supported dmabuf formats
Useful for debugging dmabuf related problems e.g. when a client requests
a certain and we fail to support it.
#include <assert.h>
+#include <stdio.h>
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <GLES2/gl2.h>
@@ -101,6 +102,26 @@ static bool check_egl_ext(const char *egl_exts, const char *ext) {
return false;
}
+static void print_dmabuf_formats(struct wlr_egl *egl) {
+ /* Avoid log msg if extension is not present */
+ if (!egl->egl_exts.dmabuf_import_modifiers) {
+ return;
+ }
+
+ int *formats;
+ int num = wlr_egl_get_dmabuf_formats(egl, &formats);
+ if (num < 0) {
+ return;
+ }
+
+ char str_formats[num * 5 + 1];
+ for (int i = 0; i < num; i++) {
+ snprintf(&str_formats[i*5], (num - i) * 5 + 1, "%.4s ", (char*)&formats[i]);
+ }
+ wlr_log(L_INFO, "Supported dmabuf buffer formats: %s", str_formats);
+ free(formats);
+}
+
bool wlr_egl_init(struct wlr_egl *egl, EGLenum platform, void *remote_display,
EGLint *config_attribs, EGLint visual_id) {
if (!load_glapi()) {
@@ -172,6 +193,7 @@ bool wlr_egl_init(struct wlr_egl *egl, EGLenum platform, void *remote_display,
egl->egl_exts.dmabuf_import_modifiers =
check_egl_ext(egl->egl_exts_str, "EGL_EXT_image_dma_buf_import_modifiers")
&& eglQueryDmaBufFormatsEXT && eglQueryDmaBufModifiersEXT;
+ print_dmabuf_formats(egl);
return true;
