std::cerr << "\n";
}
+/**
+ * Grow the current drawble.
+ *
+ * We need to infer the drawable size from GL calls because the drawable sizes
+ * are specified by OS specific calls which we do not trace.
+ */
+void
+updateDrawable(int width, int height) {
+ if (!drawable) {
+ return;
+ }
+
+ if (width <= glretrace::drawable->width &&
+ height <= glretrace::drawable->height) {
+ return;
+ }
+
+ // Check for bound framebuffer last, as this may have a performance impact.
+ GLint draw_framebuffer = 0;
+ glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &draw_framebuffer);
+ if (draw_framebuffer != 0) {
+ return;
+ }
+
+ glretrace::drawable->resize(width, height);
+ if (!drawable->visible) {
+ drawable->show();
+ }
+ glScissor(0, 0, width, height);
+}
+
void snapshot(unsigned call_no) {
if (!drawable ||
if (snapshot_prefix) {
if (snapshot_prefix[0] == '-' && snapshot_prefix[1] == 0) {
- src->writePNM(std::cout);
+ char comment[21];
+ snprintf(comment, sizeof comment, "%u", call_no);
+ src->writePNM(std::cout, comment);
} else {
char filename[PATH_MAX];
snprintf(filename, sizeof filename, "%s%010u.png", snapshot_prefix, call_no);